WO2019242390A1 - 一种分子筛/纤维复合材料及其制备方法 - Google Patents
一种分子筛/纤维复合材料及其制备方法 Download PDFInfo
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- WO2019242390A1 WO2019242390A1 PCT/CN2019/082930 CN2019082930W WO2019242390A1 WO 2019242390 A1 WO2019242390 A1 WO 2019242390A1 CN 2019082930 W CN2019082930 W CN 2019082930W WO 2019242390 A1 WO2019242390 A1 WO 2019242390A1
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- molecular sieve
- fiber
- composite material
- fiber composite
- material according
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- D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
- D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
- D06M23/08—Processes in which the treating agent is applied in powder or granular form
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/404—Biocides, antimicrobial agents, antiseptic agents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/44—Radioisotopes, radionuclides
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2400/00—Materials characterised by their function or physical properties
- A61L2400/04—Materials for stopping bleeding
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2400/00—Materials characterised by their function or physical properties
- A61L2400/12—Nanosized materials, e.g. nanofibres, nanoparticles, nanowires, nanotubes; Nanostructured surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
- B01D2253/108—Zeolites
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
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- B01D2253/10—Inorganic adsorbents
- B01D2253/116—Molecular sieves other than zeolites
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/25—Coated, impregnated or composite adsorbents
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/30—Physical properties of adsorbents
- B01D2253/302—Dimensions
- B01D2253/304—Linear dimensions, e.g. particle shape, diameter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/04—Surfactants, used as part of a formulation or alone
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/08—Nanoparticles or nanotubes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
Definitions
- the invention relates to the field of composite materials, in particular to a molecular sieve / fiber composite material and a preparation method thereof.
- Substances that have a regular microporous channel structure and have the function of screening molecules are called molecular sieves.
- TO 4 tetrahedron (T is selected from Si, Al, P, B, Ga, Ge, etc.) is the most basic structural unit (SiO 4 , AlO 4 , PO 4 , BO 4 , GaO 4 , GeO 4, etc.) constituting the molecular sieve skeleton. Crystals that form a three-dimensional network structure by combining common oxygen atoms. This combination forms holes and pores with molecular level and uniform pore size.
- Skeleton T atoms usually refer to Si, Al or P atoms, and in a few cases to other atoms, such as B, Ga, Ge, etc.
- a zeolite is an aluminosilicate molecular sieve, which is an aluminosilicate having sieving molecules, adsorption, ion exchange, and catalysis.
- the general chemical composition of zeolite is: (M) 2 / n O ⁇ xAl 2 O 3 ⁇ ySiO 2 ⁇ pH 2 O, M represents metal ions (such as K + , Na + , Ca 2+ , Ba 2+, etc.), n represents the valence of metal ions, x represents the number of moles of Al 2 O 3 , y represents the number of moles of SiO 2 , and p represents the number of moles of H 2 O.
- the molecular sieve may be an X-type molecular sieve, a Y-type molecular sieve, an A-type molecular sieve, a ZSM-5 molecular sieve, a chabazite, a beta molecular sieve, a mordenite, an L-type molecular sieve, a P-type molecular sieve, a wheat potassium zeolite, or an AlPO4-5 molecular sieve , AlPO4-11 molecular sieve, SAPO-31 molecular sieve, SAPO-34 molecular sieve, SAPO-11 molecular sieve, BAC-1 molecular sieve, BAC-3 molecular sieve, BAC-10 molecular sieve.
- molecular sieve materials such as adsorption separation, ion exchange, catalysis
- adsorption and separation performance depends on the size of the pores and pore volume of the molecular sieve
- the ion exchange performance depends on the number and position of the cations in the molecular sieve and the passageability of the pores
- the shape selectivity shown in the catalytic process and the size of the pores of the molecular sieve And orientation are related, while the intermediate products and final products in the catalytic reaction are related to the channel dimension of the molecular sieve or its cage structure.
- Fiber refers to a soft slender body with a length many times larger than its diameter, a thickness of a few micrometers to hundreds of micrometers, and a slender substance with considerable flexibility and strength.
- the fibers in the present invention refer to organic fibers.
- the organic fibers can be divided into two categories: one is natural fibers, such as cotton, wool, silk, and hemp; the other is chemical fibers, that is, natural or synthetic fibers. Fibers made from polymer compounds through chemical processing. Chemical fiber can be classified according to the source and chemical structure of the polymer, and can be divided into artificial fiber and synthetic fiber. Man-made fibers are divided into regenerated protein fibers, regenerated cellulose fibers, and cellulosic fibers.
- Synthetic fibers are divided into carbon chain fibers (the macromolecule main chain is entirely composed of C-C) and heterochain fibers (the macromolecule main chain contains other elements in addition to carbon atoms, such as N, O, etc.).
- Carbon chain fibers include polyacrylonitrile fibers, polyvinyl acetal fibers, polyvinyl chloride fibers, and fluorine-containing fibers.
- Heterochain fibers include polyamide fibers, polyester fibers, polyurethane elastic fibers, polyurea fibers, polytoluene fibers, polyimide fibers, polyamide-polyhydrazine fibers, and polybenzimidazole fibers.
- Fiber has good physical properties such as flexibility, elasticity, strength, and weavability. It is one of the ideal choices for molecular sieve carriers.
- Inorganic fibers are mainly glass fibers, quartz glass fibers, carbon fibers, boron fibers, ceramic fibers, metal fibers, silicon carbide fibers, and the like.
- the surface compounds of some inorganic fibers can chemically react with molecular sieves, which can cause molecular sieves to bind to the surface of inorganic fibers. It is not within the scope of the fiber of the present invention.
- Pretreatment of the fiber refers to a treatment method that destroys the fiber structure.
- the fiber in order to enable the molecular sieve to be directly bonded to the fiber, the fiber must be pretreated first.
- Pre-treatment methods mainly include chemical treatment, mechanical treatment, ultrasonic treatment, microwave treatment, and so on.
- the method of chemical treatment is divided into treatment with a base compound, an acid compound, an organic solvent, and the like.
- the base compound may be selected from any one or more of NaOH, KOH, Na 2 SiO 3 and the like.
- the compound may be selected from any one or more of hydrochloric acid, sulfuric acid, nitric acid and the like
- the organic solvent may be selected from any one or more of ether, acetone, ethanol and the like.
- the mechanical treatment can be crushed or ground.
- the above-mentioned fiber treatment methods although the pretreatment to a certain extent activates the polar groups (such as hydroxyl groups) on the fiber surface, but seriously damages the structure of the fiber itself ( Figure 1), affecting the fiber flexibility, elasticity and other characteristics The fiber becomes brittle, hard and other bad phenomena, and the advantages of the fiber as a carrier cannot be played well.
- pretreatment of the fibers will cause molecular sieves to aggregate on the fiber surface.
- molecular sieves are wrapped on the fiber surface with agglomeration or block structure ( Figures 2 and 3), resulting in poor fiber softness; or molecular sieves are partially agglomerated and unevenly distributed on the fiber surface ( Figure 4), or between the fiber and the molecular sieve There is a gap ( Figure 5), and the force between the molecular sieve and the fiber is weak.
- the aggregation of molecular sieve on the fiber surface will lead to uneven distribution of molecular sieve on the fiber surface, and cause differences in the performance of molecular sieve / fiber composite materials, reducing the original effective specific surface area of molecular sieve, and may also lead to blockage of molecular sieve channels.
- Binder bonding In order to increase the bonding strength between the molecular sieve and the fiber, the prior art mainly uses the adhesive to interact with the molecular sieve and the fiber to form a sandwich-like structure, and the intermediate layer is the adhesive, so that the molecular sieve can be indirectly bonded through the adhesive as a medium.
- a “binder” is a substance with a stickiness, which relies on a chemical reaction or physical action as a medium to connect the separated molecular sieve and the fibrous material together through a binder.
- the main disadvantages include: 1 the quality of the joint cannot be inspected with the naked eye; 2 requires careful surface treatment of the adherend, usually using chemical corrosion methods; 3 long curing time; 4 use temperature On the low side, the upper temperature limit for general adhesives is about 177 ° C, and the upper temperature limit for special adhesives is about 37l ° C; 5 Most adhesives require strict process control. In particular, the cleanliness of the bonding surface is required to be higher; 6 The service life of the bonding joint depends on the environment, such as humidity, temperature, and ventilation. In order to ensure that the performance of the adhesive is basically unchanged within the specified period, it is necessary to strictly pay attention to the method of storing the adhesive.
- the main disadvantages of using binders include: 1 leading to uneven distribution of molecular sieves on the fiber surface; 2 leading to easy agglomeration of molecular sieves, reducing the effective surface area of molecular sieves, and possibly causing blockage of molecular sieve channels and reducing ion exchange of molecular sieves And the pore material exchange capacity is not conducive to the transfer of materials and increases the cost of synthetic molecular sieves.
- the addition of the binder did not significantly increase the load of the molecular sieve on the fiber; nor did it greatly enhance the binding of the molecular sieve to the fiber, and the molecular sieve still easily fell off the fiber surface.
- Adhesives are divided according to material source: 1 Natural adhesives, including starch, protein, dextrin, animal gum, shellac, skin rubber, bone glue, natural rubber, rosin and other biological adhesives, and also include asphalt and other mineral adhesives 2 synthetic adhesives, mainly refers to synthetic substances, including inorganic binders such as silicate, phosphate, and epoxy resins, phenolic resins, urea resins, polyvinyl alcohol, polyurethane, polyetherimide , Polyvinyl acetal, vinyl chloride resin and other resins, and neoprene, nitrile rubber and other synthetic polymer compounds.
- natural adhesives including starch, protein, dextrin, animal gum, shellac, skin rubber, bone glue, natural rubber, rosin and other biological adhesives, and also include asphalt and other mineral adhesives
- 2 synthetic adhesives mainly refers to synthetic substances, including inorganic binders such as silicate, phosphate, and epoxy resins, phenolic resins,
- 1 water-soluble adhesives water-based adhesives, mainly starch, dextrin, polyvinyl alcohol, carboxymethyl cellulose, etc .
- 2 hot-melt adhesives such as polyurethane, polymer Styrene, polyacrylate, ethylene-vinyl acetate copolymer, etc .
- 3 solvent-based adhesives such as shellac, butyl rubber, etc .
- Agents are mostly suspended in water, such as vinyl acetate resin, acrylic resin, chlorinated rubber, etc .
- 5 solvent-free liquid adhesive which is a viscous liquid at normal temperature, such as epoxy resin.
- 1 MS modified silane the end of the modified silane polymer is methoxysilane.
- silicone silicone (Silicones) commonly known as silicone oil or dimethyl silicone oil
- molecular formula: (CH 3 ) 3 SiO (CH 3 ) 2 SiO n Si (CH 3 ) 3 is a polymer of organic silicon oxide, is a For a series of polydimethylsiloxanes with different molecular weights, the viscosity increases with molecular weight.
- the paper discloses a type A molecular sieve / wool fiber composite material bonded by an adhesive.
- 3-mercaptopropyltrimethoxysilane is used as a binder
- the A-type molecular sieve is adhered to the surface of the wool fiber
- the content of the A-type molecular sieve on the fiber is ⁇ 2.5%. It was observed through scanning electron microscopy that the morphology of wool fibers was relatively unadded with silane molecular sieves. After the silane binder was added, agglomerated molecular sieves appeared on the surface of wool fibers, and the active silane binder caused agglomeration of molecular sieve particles. The agglomeration of molecular sieve particles will reduce the effective surface area of the molecular sieve and the ability of the pore material to exchange.
- the paper discloses an adhesive-bonded Na-LTA molecular sieve / nanocellulose fiber composite material.
- nanocellulose fibers were immersed in a polydiallyldimethylammonium chloride polyDADMAC aqueous solution at 60 ° C for 30 minutes to achieve adsorption of LTA molecular sieves (polydiallyldimethylammonium chloride polyDADMAC was used as a binding agent). ⁇ ).
- molecular sieves can be attached to the fiber surface by the polycation adsorption of polydiallyldimethylammonium chloride, for 150nm nano Na-LTA, mesoporous Na-LTA and micron Na-LTA on the fiber
- the coefficient of variation is also called the "standard deviation rate", which is the ratio of the standard deviation to the mean multiplied by 100%.
- the coefficient of variation is an absolute value that reflects the degree of dispersion of the data. The higher the value of the coefficient of variation, the greater the degree of dispersion of the data, indicating that the content of molecular sieves on the fiber surface varies greatly. From the scanning electron microscope, it can be observed that the Na-LTA molecular sieve does not form a binding interface with the fiber (Fig. 6), indicating that the bonding between the fiber and the molecular sieve is not strong, and the molecular sieve is easy to fall off the surface of the fiber.
- the paper (Advanced Materials, 2010, 13 (19): 1491-1495) discloses a Y-type molecular sieve / fiber composite material bonded by an adhesive. Although molecular sieves can be attached to the surface of plant fibers by covalent bonds of the binder, the amount of adhesion is limited (all below 5 wt%).
- 3-chloropropyltrimethoxysilane was used as a binder to modify the surface of the molecular sieve to make it adhere to cotton fibers, and it fell off 39.8% under ultrasonic conditions for 10 minutes (the retention rate of the molecular sieve on the fibers was 60.2%); Under the condition of ultrasonication for 60 minutes, 95% of the zeolite is removed (the retention rate of the molecular sieve on the fiber is 5%), which indicates that the chemical bonding between the molecular sieve and the fiber is not strong in this technology.
- this technology modifies polyetherimide as a binder to the fiber surface, and then attaches 3-chloropropyltrimethoxysilane-modified molecular sieve to the binder-modified fiber. .
- the adhesive strength of the fiber and molecular sieve is increased to some extent under this condition, it still falls off under ultrasonic conditions.
- both the surface of the molecular sieve and the fiber interact with the binder, and the sandwich-like material is formed by the adhesive in the middle layer, which increases the cost of the synthesis process and reduces the effective surface area of the molecular sieve.
- the paper discloses a NaY-type molecular sieve / fiber composite material bonded by a cationic and anionic polymer binder.
- NaY molecular sieves are added to cellulose and polyvinyl alcohol amine solution, and then polyacrylamide polymer solution is added to form corresponding composite materials. Scanning electron microscopy can observe that there is no bond between NaY molecular sieve and fiber, there is no force between the two, but the simple physical combination of the two materials (Figure 7), the molecular sieve can easily fall off the fiber.
- US patent US7390452B2 discloses an electrospun mesoporous molecular sieve / fiber composite material.
- a polyetherimide (PEI) methanol solution and a mesoporous molecular sieve solution were electrospun to form a composite.
- No molecular sieve was apparently observed on the fiber surface from a scanning electron microscope ( Figure 9), that is, most of the molecular sieve was present in the fiber, and the internal molecular sieve was Unable to exert its performance.
- Chinese patent CN1779004A discloses an antibacterial viscose fiber and its production method.
- the invention is prepared by blending and spinning a silver molecular sieve antibacterial agent and a cellulose sulfonate solution, and the silver molecular sieve antibacterial agent accounts for 0.5 to 5% of cellulose.
- the silver molecular sieve is dispersed in a cellulose sulfonate solution through a 0.01% MET dispersant, and spin-molded at a bath temperature of 49 ° C. Most of the molecular sieve exists in the fiber, which easily blocks the molecular sieve channels, resulting in a small effective surface area of the molecular sieve.
- the molecular sieve / fiber composite material prepared in the prior art has four structural forms: 1) simple physical mixing of molecular sieve and fiber; 2) aggregation of molecular sieve formed on the surface of the fiber; 3) molecular sieve and fiber are bonded through The agent forms a sandwich-like structure; 4) Most of the molecular sieve is present in the fiber and is not bound to the fiber surface.
- the four structural forms of the composite material have poor dispersibility of the molecular sieve and small effective specific surface area, so they cannot exert their performance.
- the molecular sieve has a weak binding effect with the fiber, and the molecular sieve easily falls off the fiber surface.
- the effective specific surface area of the molecular sieve in the molecular sieve / fiber composite is smaller than the original effective specific surface area of the molecular sieve.
- the prior art cannot make molecular sieves / fiber composite materials that are evenly distributed on the fiber surface and directly contact the fiber surface, and that the molecular sieve is firmly bonded to the fiber surface, nor can it be achieved on the fiber.
- the molecular sieve still retains the original large effective specific surface area and strong pore material exchange capacity.
- Substances with a pore channel size of less than 2nm are called microporous materials, substances with a pore channel range of 2-50nm are called mesoporous materials, and substances with a pore channel size greater than 50nm are called large.
- Hole material Due to their small pores (usually 0.4 to 1.2 nm), molecular sieves severely affect the transport of substances located in their internal active sites, thereby severely limiting their performance as catalysts for macromolecular reactions (catalytic cracking, etc.).
- people have prepared mesoporous molecular sieves with the advantages of microporous and mesoporous materials.
- the advantages of applying mesoporous molecular sieves to catalytic materials are: (1) For catalytic reactions controlled by diffusion, the reaction rate is significant. (2) the selectivity of certain products can be increased due to the increase in mass transfer rate; (3) the reactive molecules are more accessible to the active center; (4) the catalyst is not easily deactivated and has a longer life; (5) as a carrier , The catalyst can be uniformly dispersed in the secondary pores.
- Micropore molecular sieve post-treatment method high-temperature heat treatment, high-temperature water vapor treatment, acid treatment, alkali treatment, etc.
- high-temperature heat treatment high-temperature water vapor treatment, acid treatment, alkali treatment, etc.
- aluminum or silicon can be selectively removed from the framework, and secondary pores are created in the formed molecular sieve grains.
- the molecular sieve framework is prone to collapse during post-processing dealumination or desiliconization, and the mesoporous channels communicate with each other.
- the method is not good, the diffusion and transmission of macromolecules is not improved, and a large amount of waste liquid is generated during the synthesis process, which not only pollutes the environment but also wastes medicines, so the method is greatly limited in practical applications.
- the template method is divided into a soft template method and a hard template method.
- the template of the soft template method mainly includes a polymer, a surfactant, an organosilane, and the like.
- the hard template method does not interact with the silicon source or aluminum source in the system, but only serves the purpose of occupying space.
- the template is removed by means such as baking to obtain a mesoporous molecular sieve.
- Templates that can be used as hard template methods include: nano-CaCO 3 , nano-MgO, corn starch, carbon materials (such as ordered mesoporous carbon, etc.).
- the templating agents that can be used in the hard template method have relatively large restrictions on the type or shape. Especially after the hard templating agent is removed, the connectivity of the obtained mesoporous channels is relatively poor, which limits its practical application. .
- the prior art methods for synthesizing mesoporous molecular sieves still have deficiencies: (1) Mesoporous molecular sieves synthesized by the template method (including the hard template method and the soft template method) will affect the molecular sieve in the presence of the template agent Pore channel connectivity, and limit the application of molecular sieve surface catalysis. (2) Mesoporous molecular sieves prepared by the hard template method generally have poor connectivity of the mesoporous structure, while the soft template method is relatively expensive, which limits the application of the template method to a certain extent.
- the micropore molecular sieve post-treatment method can not only form secondary pores in the molecular sieve, but also change the framework's silicon-aluminum ratio, thereby adjusting the acidity of the molecular sieve.
- this method easily causes the molecular sieve framework to collapse and the secondary pores have poor controllability. As well as environmental pollution.
- molecular sieves have good hemostatic effects, are suitable for emergency hemostasis, especially aortic bleeding, and are cheap, stable, and easy to carry. Molecular sieves rely on van der Waals forces during adsorption. The distance between molecules during the mutual attraction process is reduced, and the potential energy of the molecules is converted into internal energy to release energy. Therefore, the molecular sieve absorbs water and releases heat. In the prior art, molecular sieves mainly cover wounds in the form of granules or powder to stop bleeding, and the wounded may feel uncomfortable.
- the hemostatic material needs to completely cover the wound, powder and granular molecular sieves are used as hemostatic materials in very large amounts, which causes the molecular sieve to absorb a large amount of water and exotherm on the wound, which easily burns the wound.
- the molecular sieve will stick to the wound, which is very difficult to clean. It needs multiple flushes to remove it, which easily leads to secondary bleeding.
- the granular molecular sieve needs to be bound by an adhesive, so that the molecular sieve cannot contact the blood of the wound sufficiently. Affect the hemostatic effect of molecular sieve.
- the molecular sieve adhered on the wound has the risk of entering blood vessels or other tissues, and it is easy to remain in the lumen of the blood vessel and form a thrombus to block peripheral arterial flow.
- Dispersing the molecular sieve (or inorganic hemostatic material) on the fabric in a smaller size can solve the problem of molecular sieve material sticking to the wound and difficult to clean up to a certain extent, reduce the amount of molecular sieve, and dilute the exothermic effect caused by water absorption.
- the existing molecular sieve / fiber composite material can be used as a hemostatic fabric material.
- the molecular sieve / fiber composite material produced in the prior art has four structural forms: 1) simple physical mixing of molecular sieve and fiber; 2) molecular sieve formed on the surface of the fiber 3) The molecular sieve and the fiber form a sandwich-like structure through a binder; 4) Most of the molecular sieve is present in the fiber and is not bound to the fiber surface.
- the composite materials of these four structural forms have poor dispersibility of the molecular sieve, small effective specific surface area, insufficient contact with blood during use, and poor hemostatic effect.
- the effective specific surface area of the molecular sieve in the molecular sieve / fiber composite is smaller than the original effective specific surface area of the molecular sieve.
- molecular sieves easily fall off the surface of the fiber. Some of the easily detached molecular sieves will stick to the wound and some will enter the blood circulation. The molecular sieves will easily remain in the blood vessels and induce the risk of thrombosis.
- silicate inorganic hemostatic materials such as clay are similar to molecular sieves.
- the composite materials formed by inorganic hemostatic materials and fibers also have the above-mentioned four defective structural forms, which seriously affects the performance and safety of hemostatic materials.
- Z-Medica Co., Ltd. has developed the Combat Gauze combat gauze, a hemostatic product known as the "lifesaving artifact".
- This product is an emergency hemostasis product recommended by the US military for Co-TCCC (Committee, Tactical, Combat, Casualty Care). At present, it is used as an important first-aid device for military equipment and ambulances.
- U.S. patents US8114433B2, Chinese patents CN101541274B and CN101687056B disclose that this type of hemostatic product technology is a device capable of providing hemostatic effect on bleeding wounds, using an adhesive to attach a clay material to the surface of the gauze.
- the adhesive not only reduces the contact area of the clay material with the blood, but also has a weak binding effect between the clay material and the gauze fibers.
- the clay material on the surface of the gauze is still very easy to fall off the surface of the gauze fiber ( Figure 20).
- Clay retention rate on the gauze fiber is ⁇ 10% under ultrasonic condition for 1min under ultrasonic cleaner; Clay retention rate is 5% or less on the gauze fiber under ultrasonic condition for 5min ( Figure 21); under ultrasound condition for 20min
- the retention rate of clay on the gauze fibers is ⁇ 5%.
- This defective structural form limits the hemostatic properties of the hemostatic product and the potential risk of causing sequelae or other side effects (such as blood clots).
- Chinese patent CN104888267A discloses a medical hemostatic spandex fiber fabric and a preparation method thereof.
- the preparation method of medical hemostatic spandex fiber fabric includes the following steps: 1) preparing a polyurethane urea stock solution; 2) grinding the inorganic hemostatic powder and dispersant in a dimethylacetamide solvent to obtain a hemostatic plasma solution; 3) the polyurethane urea stock solution
- the plasma-stopping fluid is simultaneously placed in a reaction container, and a spandex fiber is prepared through a dry spinning process, and finally woven into a spandex fiber fabric.
- the inorganic hemostatic powder is one or more of diatomite, montmorillonite, zeolite, bioglass and halloysite nanotubes.
- a large part of the inorganic hemostatic powder in the hemostatic spandex fiber fabric prepared by the method is inside the fiber, which cannot fully contact with the blood and exert its hemostatic effect, and the amount of the inorganic hemostatic powder is increased, so the hemostatic effect is not good.
- the problems existing in the hemostatic materials in the prior art are: 1) powder and granular molecular sieves (or inorganic hemostatic materials) absorb a large amount of water and exotherm on the wound; 2) molecular sieves of composite materials formed by molecular sieves (or inorganic hemostatic materials) and fibers Poor dispersibility, small effective specific surface area, insufficient contact with blood during use, and poor hemostatic effect; 3) The binding force of molecular sieve (or inorganic hemostatic material) and fiber is weak, and the molecular sieve is easy to fall off from the fiber surface during actual use. The retention rate is low, and the hemostatic material easily loses the hemostatic effect.
- the prior art cannot achieve a strong bond between the molecular sieve (or inorganic hemostatic material) and the fiber, and it is not easy to fall off or even fall off.
- the molecular sieve has good dispersibility on the surface of the fiber and the molecular sieve remains relatively large. Hemostatic material with excellent effective specific surface area and excellent hemostatic effect.
- the first technical problem to be solved by the present invention is: for the first time, the present invention solves the problem of molecular sieve agglomeration on the fiber surface in a molecular sieve / fiber composite material, and provides a method without adding a binder
- the molecular sieve is a molecular sieve / fiber composite material with firm fibers and uniform distribution of the molecular sieve on the fiber surface.
- the molecular sieve in the composite material still maintains the original large effective specific surface area and strong channel substance exchange capacity.
- the invention unexpectedly obtained a brand new material by a simple method, a molecular sieve / fiber composite material, the molecular sieve is distributed on the fiber surface and directly contacts the fiber surface, and the particle diameter D90 of the molecular sieve is 0.01 to 50 ⁇ m, the particle size D50 of the molecular sieve is 0.005 to 25 ⁇ m, and the molecular sieve is uniformly distributed on the fiber surface (perfect homogeneity).
- D50 refers to the particle size corresponding to the cumulative particle size distribution percentage of the molecular sieve microparticles on the surface of the molecular sieve / fiber composite reaching 50%. Its physical meaning is that molecular sieve microparticles with a particle size larger than it account for 50%, and molecular sieve microparticles with a particle size smaller than it also account for 50%. D50 is also called median particle size or median particle size, which can represent the average particle size of molecular sieve microparticles.
- the molecular sieve micro-particles are molecular sieve geometry with a certain shape and a size smaller than 50 microns, which retains the boundary ( Figure 10a) of the original molecular sieve growth and formation.
- D90 refers to the particle size corresponding to the cumulative particle size distribution percentage of the molecular sieve microparticles on the surface of the molecular sieve / fiber composite reaching 90%. Its physical meaning is that the molecular sieve microparticles with a particle size larger than it account for 10%, and the molecular sieve microparticles with a particle size smaller than it account for 90%.
- the detection method for the uniform distribution of the molecular sieve on the fiber surface is: the molecular sieve / fiber composite material randomly takes n samples at different locations and analyzes the content of the molecular sieve on the fiber surface, where n is a positive integer greater than or equal to 8.
- the coefficient of variation is also called the "standard deviation rate", which is the ratio of the standard deviation to the mean multiplied by 100%.
- the coefficient of variation is an absolute value that reflects the degree of dispersion of the data. The smaller the value of the coefficient of variation, the smaller the degree of dispersion of the data, indicating that the smaller the difference in the content of molecular sieve on the fiber surface, the more uniform the distribution of molecular sieve on the fiber surface.
- the coefficient of variation of the content of molecular sieves in the n samples is ⁇ 15%; the coefficient of variation is ⁇ 10%; preferably, the coefficient of variation is ⁇ 5%; preferably, the coefficient of variation is ⁇ 2 %; Preferably, the coefficient of variation is ⁇ 1%; preferably, the coefficient of variation is ⁇ 0.5%; more preferably, the coefficient of variation is ⁇ 0.2%.
- the coefficient of variation of the molecular sieve content in the n samples of the present invention is ⁇ 15%, which is defined as the perfect distribution of molecular sieve on the fiber surface; preferably, the coefficient of variation is ⁇ 10%, which is defined as the molecular sieve on the fiber surface Uniform distribution; preferably, the coefficient of variation is ⁇ 5%, which is defined as the uniform distribution of molecular sieve on the fiber surface; preferably, the coefficient of variation is ⁇ 2%, which is defined as the uniform distribution of molecular sieve on the fiber surface; preferably, The coefficient of variation is ⁇ 1%, which is defined as the uniform distribution of molecular sieve on the fiber surface; preferably, the coefficient of variation is ⁇ 0.5%, which is defined as the uniform distribution of molecular sieve on the fiber surface; more preferably, the coefficient of variation is ⁇ 0.2%, defined as the molecular sieve is evenly distributed on the fiber surface.
- the average content of molecular sieve on the fiber in the 10 samples is 25% by weight, the standard deviation of the sample is 0.1% by weight, and the coefficient of variation is 0.4%.
- the molecular sieve is evenly distributed on the fiber surface ( Figure 11).
- the particle diameter D90 of the molecular sieve is 0.1 to 30 ⁇ m, and the particle diameter D50 of the molecular sieve is 0.05 to 15 ⁇ m; preferably, the particle diameter D90 of the molecular sieve is 0.5 to 20 ⁇ m, and the particle diameter D50 of the molecular sieve is 0.25 to 10 ⁇ m; preferably, the molecular sieve has a particle diameter D90 of 1 to 15 ⁇ m, and the molecular sieve has a particle diameter D50 of 0.5 to 8 ⁇ m; more preferably, the molecular sieve has a particle diameter D90 of 5 to 10 ⁇ m, and the molecular sieve The particle diameter D50 is 2.5 to 5 ⁇ m.
- the binder content of the contact surface between the molecular sieve and the fiber is 0.
- the contact surface between the molecular sieve and the fiber is an inner surface, and the inner surface is a rough plane.
- a growth matching coupling is formed between the molecular sieve and the fiber, so that the binding effect between the molecular sieve and the fiber is strong.
- the non-contact surface between the molecular sieve and the fiber is an outer surface, and the outer surface is non-planar.
- the molecular sieve microparticles Different from the traditional growth method of molecular sieve microparticles in solution, the molecular sieve microparticles have a complete and uniform growth surface around them (Figure 16).
- the growth-matched coupling is that the molecular sieve microparticles are grown to match the fiber surface.
- the tightly coupled coupling interface ( Figure 12) that matches the fiber makes the molecular sieve strong in fiber binding.
- the detection method for forming the growth-matched coupling is: the molecular sieve / fiber composite material has a retention rate of ⁇ 90% on the fiber under the condition that the ultrasonic cleaner is ultrasonicated for ⁇ 20min; preferably, the retention rate is ⁇ 95%; more preferably, the retention rate is 100%, that is, the molecular sieve has a strong binding effect with the fiber, and the molecular sieve does not easily fall off the fiber surface.
- the detection method for forming a growth-matched coupling is: the molecular sieve / fiber composite material has a retention rate of ⁇ 90% of the molecular sieve on the fiber under the condition that the ultrasonic cleaner is ultrasonicated for ⁇ 40 min; preferably, the The retention rate is ⁇ 95%; more preferably, the retention rate is 100%, that is, the molecular sieve has a strong binding effect with the fiber, and the molecular sieve does not easily fall off the fiber surface.
- the detection method for forming a growth-matched coupling is: the molecular sieve / fiber composite material has a retention rate of 90% or more of the molecular sieve on the fiber under the condition that the ultrasonic cleaner is ultrasonicated for ⁇ 60 min; preferably, the The retention rate is ⁇ 95%; more preferably, the retention rate is 100%, that is, the molecular sieve has a strong binding effect with the fiber, and the molecular sieve does not easily fall off the fiber surface.
- both the inner surface and the outer surface are composed of molecular sieve nanoparticles.
- the molecular sieve nanoparticles are particles formed by molecular sieve growing in a size of nanometer (2 to 500 nm).
- the average size of the outer surface molecular sieve nanoparticles is larger than the average size of the inner surface molecular sieve nanoparticles.
- the molecular sieve is independently dispersed on the surface of the fiber, that is, the molecular sieve does not aggregate on the surface of the fiber, and the molecular sieve is independently dispersed on the surface of the fiber so that the fiber maintains the original physical properties of flexibility and elasticity.
- the independent dispersion means that each molecular sieve microparticle has its own independent boundary; as shown in FIG. 10a, the boundary of each molecular sieve microparticle is clearly visible.
- the aggregation of molecular sieves on the fiber surface may refer to the spatial or partial overlap of the molecular sieve microparticles and their nearest neighbor molecular sieve microparticles, that is, the molecular sieve microscopic
- the minimum distance between the particles is less than one-half of the sum of the particle size of the two molecular sieve microparticles (as shown in FIG. 22 (1), d ⁇ r 1 + r 2 ).
- the independent dispersion means that the microscopic particles of the molecular sieve are dispersed on the fiber surface with a gap between each other, and the independent dispersion may refer to the microscopic particles of the molecular sieve and the microparticles of the nearest molecular sieve.
- the minimum distance between them is greater than or equal to one-half of the sum of the particle sizes of the two molecular sieve microparticles (as shown in Figure 22 (2), d ⁇ r 1 + r 2 ), indicating that there is a boundary between adjacent molecular sieve microparticles. .
- the molecular sieves are independently dispersed on the fiber surface, they are not agglomerated or distributed on the fiber surface, which promotes the uniform distribution of the molecular sieve on the fiber surface.
- all the molecular sieves in the molecular sieve / fiber composite material are distributed on the fiber surface.
- the outer surface molecular sieve nanoparticles are angular particles.
- the inner surface molecular sieve nanoparticles are particles without edges and corners.
- the nanoparticles without edges make the inner surface of the molecular sieve match the surface of the fiber better, which is beneficial to the chemical combination of the molecular sieve and the fiber.
- the average size of the inner surface molecular sieve nanoparticles is 2 to 100 nm; preferably, the average size is 10 to 60 nm.
- the average size of the outer surface molecular sieve nanoparticles is 50 to 500 nm; preferably, the average size is 100 to 300 nm.
- the non-plane is composed of a curve or a straight line; preferably, the non-plane is a spherical surface, and the spherical surface increases an effective area of contact with a substance.
- the molecular sieve is a mesoporous molecular sieve.
- the content of the molecular sieve accounts for 0.05 to 80% by weight of the molecular sieve / fiber composite material; preferably, the content of the molecular sieve accounts for 1 to 50% by weight of the molecular sieve / fiber composite material; preferably, the content of the molecular sieve The content accounts for 5 to 35 wt% of the molecular sieve / fiber composite material; preferably, the content of the molecular sieve accounts for 10 to 25 wt% of the molecular sieve / fiber composite material; more preferably, the content of the molecular sieve accounts for the molecular sieve / fiber composite material 15-20% by weight.
- the molecular sieve may be selected from any one or more of aluminosilicate molecular sieve, phosphate molecular sieve, borate molecular sieve, and heteroatom molecular sieve.
- the aluminosilicate molecular sieve may be selected from the group consisting of X-type molecular sieve, Y-type molecular sieve, A-type molecular sieve, ZSM-5 molecular sieve, chabazite, beta molecular sieve, mordenite, L-type molecular sieve, P-type molecular sieve, and barium potassium Any one or more of zeolites.
- molecular sieve is optional, any self-AlPO 4 -5 molecular sieve AlPO 4 -11 molecular sieve SAPO-31 SAPO-34 type zeolite molecular sieve, SAPO-11 zeolite with one or more .
- borate molecular sieve may be selected from any one or more of BAC-1 molecular sieve, BAC-3 molecular sieve, and BAC-10 molecular sieve.
- heteroatom molecular sieve is a heteroatom element that replaces part of the silicon, aluminum, and phosphorus of the molecular sieve framework to form a molecular sieve containing other elements.
- heteroatom element may be selected from any one or any number of transition metal elements in the fourth, fifth, and sixth periods.
- the molecular sieve is a molecular sieve after metal ion exchange.
- the metal ion is selected from any one or more of strontium ion, calcium ion, magnesium ion, silver ion, zinc ion, barium ion, potassium ion, ammonium ion, and copper ion.
- the fiber is a polymer containing a hydroxyl group in a repeating unit.
- the fiber is selected from the group consisting of silk fiber, chitin fiber, rayon fiber, acetate fiber, carboxymethyl cellulose, bamboo fiber, cotton fiber, linen fiber, wool, wood fiber, and lactide polymer fiber.
- Glycolide polymer fiber polyester fiber (referred to as polyester (PET)), polyamide fiber (referred to as nylon, nylon, nylon (PA)), polypropylene fiber (referred to as polypropylene (PP)), polyethylene fiber (referred to as Any one or more of PE), polyvinyl chloride fiber (abbreviated as vinyl chloride (PVC)), polyacrylonitrile fiber (abbreviated as acrylic fiber, artificial wool), and viscose fiber.
- the polyester fiber refers to a polycondensation made of a monomer having both a hydroxyl group and a carboxyl group, or a polyester formed by polycondensation of an aliphatic dibasic acid and an aliphatic diol, or Polyester or copolyester obtained by ring-opening polymerization of aliphatic lactones.
- the molecular weight of the aliphatic polyester is 50,000 to 250,000.
- the polyester obtained by polycondensation of a monomer having both a hydroxyl group and a carboxyl group is polylactic acid obtained by direct polycondensation of lactic acid; the polyester obtained by polycondensation polymerization of an aliphatic dibasic acid and an aliphatic diol It is polybutylene succinate, polyhexanediol sebacate, polyethylene glycol succinate, or polyhexyl succinate; a polymer made of aliphatic lactones through ring-opening polymerization.
- Ester is polylactic acid obtained by ring-opening polymerization of lactide, and polycaprolactone obtained by ring-opening polymerization of caprolactone; copolyester is polyglycolide.
- the polyamide fiber refers to polyhexamethylene adipate obtained by polycondensation of a diamine and a diacid, and the chemical structural formula of its long chain molecule is: H- [HN (CH 2 ) X NHCO ( CH 2 ) Y CO] n-OH; or obtained by polycondensation or ring-opening polymerization of caprolactam, the chemical structural formula of its long chain molecule is: H- [NH (CH 2 ) X CO] n-OH.
- the molecular sieve / fiber composite material is prepared by an in-situ growth method.
- the in-situ growth method includes the following steps:
- step 2) Heat treating the mixture of the fiber and molecular sieve precursor solution in step 1) to obtain a molecular sieve / fiber composite material.
- the molecular sieve precursor solution does not include a templating agent.
- the temperature of the heat treatment is 60 to 220 ° C., and the time is 4 to 240 h.
- the mass ratio of the step 1) fiber to the molecular sieve precursor solution is 1: 0.5 to 1: 1000; preferably, the mass ratio of the step 1) fiber to the molecular sieve precursor solution is 1: 0.8 to 1: 100;
- the mass ratio of the fiber to the molecular sieve precursor solution in step 1) is 1: 1 to 1:50; preferably, the mass ratio of the fiber to the molecular sieve precursor solution in step 1) is 1: 1.5 to 1:20; preferably, the mass ratio of the fiber to the molecular sieve precursor solution in step 1) is 1: 2 to 1:10; more preferably, the mass ratio of the fiber to the molecular sieve precursor solution in step 1) is 1 : 2 ⁇ 1: 5.
- the second technical problem to be solved by the present invention is to provide a scaffold using fiber as a molecular sieve for nucleation and crystal growth without adding a binder, and a new template-free agent.
- Method for Synthesis of Molecular Sieve / Fiber Composites by In Situ Growth The method has the characteristics of low cost, simple process and environmental friendliness.
- the present invention provides a method for preparing a molecular sieve / fiber composite material as described above, including the following steps:
- step 2) Heat treating the mixture of the fiber and molecular sieve precursor solution in step 1) to obtain a molecular sieve / fiber composite material.
- the molecular sieve precursor solution does not include a templating agent.
- the temperature of the heat treatment is 60 to 220 ° C., and the time is 4 to 240 h.
- the mass ratio of the step 1) fiber to the molecular sieve precursor solution is 1: 0.5 to 1: 1000; preferably, the mass ratio of the step 1) fiber to the molecular sieve precursor solution is 1: 0.8 to 1: 100;
- the mass ratio of the fiber to the molecular sieve precursor solution in step 1) is 1: 1 to 1:50; preferably, the mass ratio of the fiber to the molecular sieve precursor solution in step 1) is 1: 1.5 to 1:20; preferably, the mass ratio of the fiber to the molecular sieve precursor solution in step 1) is 1: 2 to 1:10; more preferably, the mass ratio of the fiber to the molecular sieve precursor solution in step 1) is 1 : 2 ⁇ 1: 5.
- the molecular sieve is a mesoporous molecular sieve.
- the prepared molecular sieve / fiber composite material includes molecular sieve and fibers, the molecular sieve is distributed on the surface of the fiber and is in direct contact with the surface of the fiber, the particle diameter D90 of the molecular sieve is 0.01-50 ⁇ m, and the particle diameter D50 of the molecular sieve is 0.005 to 25 ⁇ m, the molecular sieve is uniformly distributed on the fiber surface (perfect homogeneity).
- the detection method of the perfect homogeneity of the molecular sieve on the fiber surface is: the molecular sieve / fiber composite material randomly takes n samples at different locations, and analyzes the content of the molecular sieve on the fiber surface, where n is a positive value greater than or equal to 8. Integer.
- the coefficient of variation is also called the "standard deviation rate", which is the ratio of the standard deviation to the mean multiplied by 100%.
- the coefficient of variation is an absolute value that reflects the degree of dispersion of the data. The smaller the value of the coefficient of variation, the smaller the degree of dispersion of the data, indicating that the smaller the difference in the content of molecular sieve on the fiber surface, the more uniform the distribution of molecular sieve on the fiber surface.
- the coefficient of variation of the content of molecular sieves in the n samples is ⁇ 15%; the coefficient of variation is ⁇ 10%; preferably, the coefficient of variation is ⁇ 5%; preferably, the coefficient of variation is ⁇ 2 %; Preferably, the coefficient of variation is ⁇ 1%; preferably, the coefficient of variation is ⁇ 0.5%; more preferably, the coefficient of variation is ⁇ 0.2%.
- the particle diameter D90 of the molecular sieve is 0.1 to 30 ⁇ m, and the particle diameter D50 of the molecular sieve is 0.05 to 15 ⁇ m; preferably, the particle diameter D90 of the molecular sieve is 0.5 to 20 ⁇ m, and the particle diameter D50 of the molecular sieve is 0.25 to 10 ⁇ m; preferably, the molecular sieve has a particle diameter D90 of 1 to 15 ⁇ m, and the molecular sieve has a particle diameter D50 of 0.5 to 8 ⁇ m; more preferably, the molecular sieve has a particle diameter D90 of 5 to 10 ⁇ m, and the molecular sieve The particle diameter D50 is 2.5 to 5 ⁇ m.
- the binder content of the contact surface between the molecular sieve and the fiber is 0.
- the contact surface between the molecular sieve and the fiber is an inner surface, and the inner surface is a rough plane.
- a growth matching coupling is formed between the molecular sieve and the fiber, so that the binding effect between the molecular sieve and the fiber is strong.
- the non-contact surface between the molecular sieve and the fiber is an outer surface, and the outer surface is non-planar.
- the detection method for forming a growth-matched coupling is: the molecular sieve / fiber composite material has a retention rate of ⁇ 90% on the fiber under the condition that the ultrasonic cleaner is ultrasonicated for ⁇ 20 min; preferably, the The retention rate is ⁇ 95%; more preferably, the retention rate is 100%, that is, the molecular sieve has a strong binding effect with the fiber, and the molecular sieve does not easily fall off the fiber surface.
- the detection method for forming a growth-matched coupling is: the molecular sieve / fiber composite material has a retention rate of ⁇ 90% of the molecular sieve on the fiber under the condition that the ultrasonic cleaner is ultrasonicated for ⁇ 40 min; preferably, the The retention rate is ⁇ 95%; more preferably, the retention rate is 100%, that is, the molecular sieve has a strong binding effect with the fiber, and the molecular sieve does not easily fall off the fiber surface.
- the detection method for forming a growth-matched coupling is: the molecular sieve / fiber composite material has a retention rate of 90% or more of the molecular sieve on the fiber under the condition that the ultrasonic cleaner is ultrasonic for ⁇ 60 min; The retention rate is ⁇ 95%; more preferably, the retention rate is 100%, that is, the molecular sieve has a strong binding effect with the fiber, and the molecular sieve does not easily fall off the fiber surface.
- both the inner surface and the outer surface are composed of molecular sieve nanoparticles.
- the molecular sieve nanoparticles are particles formed by molecular sieve growing in a size of nanometer (2 to 500 nm).
- the average size of the outer surface molecular sieve nanoparticles is larger than the average size of the inner surface molecular sieve nanoparticles.
- the molecular sieve is independently dispersed on the surface of the fiber, and the molecular sieve is independently dispersed on the surface of the fiber so that the fiber maintains the original physical properties of flexibility and elasticity.
- the aggregation of molecular sieves on the fiber surface refers to the partial or full overlap of the molecular sieve microparticles and their nearest adjacent molecular sieve microparticles, that is, the smallest The distance is less than half of the sum of the particle size of the two molecular sieve microparticles (as shown in FIG. 22 (1), d ⁇ r 1 + r 2 ).
- the independent dispersion means that the microscopic particles of the molecular sieve are dispersed on the fiber surface with a gap between each other, and the independent dispersion refers to the microscopic particles of the molecular sieve and the microparticles of the nearest molecular sieve.
- the minimum distance is greater than or equal to one-half of the sum of the particle sizes of the two molecular sieve microparticles (as shown in Figure 22 (2), d ⁇ r 1 + r 2 ), which indicates the boundary between adjacent molecular sieve microparticles.
- all the molecular sieves in the molecular sieve / fiber composite material are distributed on the fiber surface.
- the outer surface molecular sieve nanoparticles are angular particles.
- the inner surface molecular sieve nanoparticles are particles without edges and corners.
- the nanoparticles without edges make the inner surface of the molecular sieve match the surface of the fiber better, which is beneficial to the chemical combination of the molecular sieve and the fiber.
- the average size of the inner surface molecular sieve nanoparticles is 2 to 100 nm; preferably, the average size is 10 to 60 nm.
- the average size of the outer surface molecular sieve nanoparticles is 50 to 500 nm; preferably, the average size is 100 to 300 nm.
- the non-planar surface is formed by a curve or a straight line; preferably, the non-planar surface is a spherical surface, and the spherical surface increases an effective area in contact with a substance.
- the content of the molecular sieve accounts for 0.05 to 80% by weight of the molecular sieve / fiber composite material; preferably, the content of the molecular sieve accounts for 1 to 50% by weight of the molecular sieve / fiber composite material; preferably, the content of the molecular sieve The content accounts for 5 to 35 wt% of the molecular sieve / fiber composite material; preferably, the content of the molecular sieve accounts for 10 to 25 wt% of the molecular sieve / fiber composite material; more preferably, the content of the molecular sieve accounts for the molecular sieve / fiber composite material 15-20% by weight.
- the molecular sieve may be selected from any one or more of aluminosilicate molecular sieve, phosphate molecular sieve, borate molecular sieve, and heteroatom molecular sieve.
- the aluminosilicate molecular sieve may be selected from the group consisting of X-type molecular sieve, Y-type molecular sieve, A-type molecular sieve, ZSM-5 molecular sieve, chabazite, beta molecular sieve, mordenite, L-type molecular sieve, P-type molecular sieve, and barium potassium Any one or more of zeolites.
- molecular sieve is optional, any self-AlPO 4 -5 molecular sieve AlPO 4 -11 molecular sieve SAPO-31 SAPO-34 type zeolite molecular sieve, SAPO-11 zeolite with one or more .
- borate molecular sieve may be selected from any one or more of BAC-1 molecular sieve, BAC-3 molecular sieve, and BAC-10 molecular sieve.
- heteroatom molecular sieve is a heteroatom element that replaces part of the silicon, aluminum, and phosphorus of the molecular sieve framework to form a molecular sieve containing other elements.
- heteroatom element may be selected from any one or any number of transition metal elements in the fourth, fifth, and sixth periods.
- the molecular sieve is a molecular sieve after metal ion exchange.
- the metal ion is selected from any one or more of strontium ion, calcium ion, magnesium ion, silver ion, zinc ion, barium ion, potassium ion, ammonium ion, and copper ion.
- the fiber is a polymer containing a hydroxyl group in a repeating unit.
- the fiber is selected from the group consisting of silk fiber, chitin fiber, rayon fiber, acetate fiber, carboxymethyl cellulose, bamboo fiber, cotton fiber, linen fiber, wool, wood fiber, and lactide polymer fiber.
- Glycolide polymer fiber polyester fiber (referred to as polyester (PET)), polyamide fiber (referred to as nylon, nylon, nylon (PA)), polypropylene fiber (referred to as polypropylene (PP)), polyethylene fiber (referred to as Any one or more of PE), polyvinyl chloride fiber (abbreviated as vinyl chloride (PVC)), polyacrylonitrile fiber (abbreviated as acrylic fiber, artificial wool), and viscose fiber.
- the polyester fiber refers to a polycondensation made of a monomer having both a hydroxyl group and a carboxyl group, or a polyester formed by polycondensation of an aliphatic dibasic acid and an aliphatic diol, or Polyester or copolyester obtained by ring-opening polymerization of aliphatic lactones.
- the molecular weight of the aliphatic polyester is 50,000 to 250,000.
- the polyester obtained by polycondensation of a monomer having both a hydroxyl group and a carboxyl group is polylactic acid obtained by direct polycondensation of lactic acid; the polyester obtained by polycondensation polymerization of an aliphatic dibasic acid and an aliphatic diol It is polybutylene succinate, polyhexanediol sebacate, polyethylene glycol succinate, or polyhexyl succinate; a polymer made of aliphatic lactones through ring-opening polymerization.
- Ester is polylactic acid obtained by ring-opening polymerization of lactide, and polycaprolactone obtained by ring-opening polymerization of caprolactone; copolyester is polyglycolide.
- the polyamide fiber refers to polyhexamethylene adipate obtained by polycondensation of a diamine and a diacid, and the chemical structural formula of its long chain molecule is: H- [HN (CH 2 ) X NHCO ( CH 2 ) Y CO] n-OH; or obtained by polycondensation or ring-opening polymerization of caprolactam, the chemical structural formula of its long chain molecule is: H- [NH (CH 2 ) X CO] n-OH.
- a third object of the present invention is to provide a molecular sieve / fiber composite modified material, the modified material contains an additive, any form of molecular sieve / fiber composite material as described above, or any one of the foregoing Forms of molecular sieve / fiber composites made by the preparation method.
- the additive may be selected from metals, metal ion-containing compounds, synthetic polymer compounds, poorly soluble polysaccharides, proteins, nucleic acids, pigments, antioxidants, antifungal agents, detergents, surfactants, and antibiotics. , Antibacterial agents, antimicrobial agents, anti-inflammatory agents, analgesics, and antihistamines.
- the synthetic polymer compound may be selected from polymer compounds obtained by addition polymerization reaction, polymer compounds obtained by polycondensation reaction, polyamide polymer compounds, synthetic rubber polymer compounds, or Multiple.
- the protein may be selected from any one or more of fibrin, collagen, oxidoreductase, transferase, hydrolase, lyase, isomerase, and synthetase.
- the transferase may be selected from any one or more of a methyltransferase, an aminotransferase, an acetyltransferase, a transferase, a kinase, and a polymerase.
- the hydrolase may be selected from any one or more of amylase, protease, lipase, phosphatase, and glycosidase.
- the lyase may be selected from any one or more of a dehydratase, a decarboxylase, a carbonic anhydrase, an aldolase, and a citrate synthase.
- the synthetase may be selected from any one or more of glutamine synthetase, DNA ligase, and biotin-dependent carboxylase.
- the antibiotic may be any one or more of a quinolone antibiotic, a ⁇ -lactam antibiotic, a macrolide, and an aminoglycoside antibiotic.
- the poorly soluble polysaccharide may be a natural non-chemically treated polymer polysaccharide, and the polymer polysaccharide may be selected from any one of cellulose, lignin, starch, chitosan, and agarose.
- the poorly soluble polysaccharide according to the present invention may also be a mixture of a natural non-chemically treated polymer polysaccharide and a chemically-modified modified polymer polysaccharide.
- a fourth object of the present invention is to provide a composite, the composite comprising a molecular sieve / fiber composite material of any form as described above or a molecular sieve prepared by any method of preparation as described above / Fiber composites.
- the complex is a blood material.
- the hemostatic material is a textile.
- the hemostatic fabric is selected from any one or more of a hemostatic bandage, a hemostatic gauze, a hemostatic cloth, a hemostatic clothing, a hemostatic cotton, a hemostatic suture, a hemostatic paper, and a hemostatic band-aid.
- the hemostatic garment is a material worn on the human body for protection or decoration.
- hemostatic clothing may be selected from any one or more of hemostatic underwear, hemostatic vest, hemostatic cap, and hemostatic pants.
- the composite is a radiation-resistant material.
- the anti-radiation material is selected from any one or more of anti-radiation clothing, anti-radiation umbrella, and anti-radiation cap.
- the composite is an antibacterial material.
- a fifth object of the present invention is to provide the use of any form of molecular sieve / fiber composite modified material as described above in the fields of hemostasis, beauty, deodorization, sterilization, water purification, air purification, and radiation resistance.
- a sixth object of the present invention is to provide the use of the compound in any form as described above in the fields of hemostasis, beauty, deodorization, sterilization, water purification, air purification, and radiation resistance.
- the molecular sieve / fiber composite modified material or composite can be applied to the fields of hemostasis, beauty, deodorization, sterilization, water purification, air purification, and radiation resistance.
- hemostatic bandages, hemostatic gauze, hemostatic cloth, hemostatic clothing, etc. can be made to solve the problems of emergency treatment for emergency accidents and trauma and hemostasis during surgical operations on patients in hospitals.
- water purification the characteristics of the molecular sieve / fiber composite modified material or composite molecular sieve of the present invention that are firmly bonded to the fiber and maintain a large effective specific surface area of the molecular sieve can be used in the purification process.
- the water body is fully contacted directly, and the harmful substances are absorbed to achieve the purpose of water body purification.
- the present invention solves the problem of molecular sieve aggregation on the fiber surface in a molecular sieve / fiber composite material, and prepares a brand new molecular sieve / fiber composite material with a suitable size (the particle diameter of the molecular sieve D90 is 0.01-50 ⁇ m, The particle size D50 of the molecular sieve is 0.005 to 30 ⁇ m), which is uniformly distributed on the fiber surface (perfect homogeneity), so that the overall performance of the composite material remains consistent.
- the molecular sieve is distributed on the surface of the fiber and is in direct contact with the surface of the fiber, a growth matching coupling is formed between the molecular sieve and the fiber, and the molecular sieve and the fiber are firmly combined.
- the present invention does not require pretreatment of fibers and does not add a binder.
- the composite material of the present invention solves the defects of molecular sieve agglomeration on the fiber surface resulting in low effective surface area and blockage of molecular sieve channels; molecular sieve / Fiber composite material has high strength and elastic recovery ability, dimensional stability, making the composite material strong and durable.
- the molecular sieve / fiber composite material of the invention has a simple structure, low cost, strong stability, high performance repeatability, and high practical efficiency.
- the present invention provides a method for synthesizing a molecular sieve / fiber composite material by using fibers as a scaffold for nucleation and crystal growth of a molecular sieve and in-situ growth without a template. This method has the characteristics of low cost, simple process and environmental friendliness, and has achieved very good technical results.
- the molecular sieve / fiber composite modified material or composite according to the present invention can be used in the fields of hemostasis, beauty, deodorization, sterilization, water purification, air purification, and radiation resistance.
- the use of its structural stability (the strong combination of molecular sieve and fiber) has a good application prospect in the medical industry, especially the hemostatic industry; high effective surface area of molecular sieve / fiber composite modified material or composite molecular sieve
- the ability to exchange materials with substances makes the material better used in adsorption, separation, and catalysis.
- FIG. 1 is a schematic diagram of a fiber structure destruction caused by pretreatment of a prior art fiber
- Figure 2 is a scanning electron microscope image of a prior art molecular sieve / fiber composite material, in which the molecular sieve is wrapped on the surface of the fiber in the form of agglomeration (Journal of Materials, 1996, 3 (3): 143-150) ;
- Figure 3 is a scanning electron microscope image of a fiber pretreatment molecular sieve / fiber composite material in the prior art, in which the molecular sieve is wrapped on the surface of the fiber in the form of agglomeration or block (Cellulose, 2015, 22 (3): 1813-1827) ;
- Figure 4 is a scanning electron microscope image of a molecular sieve / fiber composite material pretreated in the prior art, in which the molecular sieve is partially agglomerated and unevenly distributed on the fiber surface (Journal of Porous Materials, 1996, 3 (3): 143-150 );
- FIG. 5 is a scanning electron microscope image of a fiber pretreatment molecular sieve / fiber composite material in the prior art, in which a gap exists between the fiber and the molecular sieve (Journal of Porous Materials, 1996, 3 (3): 143-150);
- FIG. 6 is a scanning electron microscope image of a prior art polydiallyldimethylammonium chloride-bonded Na-LTA molecular sieve / nanocellulose fiber composite material (ACS Appl. Mater. Interfaces 2016, 8, 3032-3040);
- FIG. 7 is a scanning electron microscope image of a NaY-type molecular sieve / fiber composite material bonded by a cationic and anionic polymer binder in the prior art (Microporous & Mesoporous Materials, 2011, 145 (1-3): 51-58);
- FIG. 8 is a schematic diagram of a molecular sieve / fiber composite material blended and spun in the prior art
- FIG. 9 is a schematic diagram of an electrospun molecular sieve / fiber composite material in the prior art (US Patent No. 7,739,452 B2);
- FIG. 11 is a graph showing the content of molecular sieves on the fiber surface at 10 different positions of a molecular sieve / fiber composite of the present invention.
- FIG. 12 is a scanning electron microscope image of a fiber (a) and a molecular sieve (b) corresponding to a molecular sieve / fiber composite material according to the present invention (test parameter SU80100 3.0kV; 9.9mm), where the molecular sieve is obtained after the fiber is removed from the composite material.
- the fiber is before the composite with the molecular sieve;
- FIG. 14 is a statistical distribution diagram of particle sizes of nanoparticles on the inner surface (the contact surface between the molecular sieve and the fiber) and the outer surface of a molecular sieve of a molecular sieve / fiber composite material according to the present invention
- the molecular sieve in the molecular sieve / fiber composite material is a mesoporous molecular sieve
- FIG. 17 is a schematic diagram of the effect of the growth matching coupling between the molecular sieve and the fiber formed by the molecular sieve / fiber composite of the present invention and Comparative Example 2 on the bonding strength between the molecular sieve and the fiber;
- FIG. 18 is a schematic diagram of a molecular sieve / fiber composite bonded by a conventional adhesive.
- the fibers, the adhesive, and the molecular sieve form a sandwich-like structure, and the intermediate layer is an adhesive;
- FIG. 21 is a diagram of the clay retention rate of a clay / fiber composite material in the prior art under ultrasonic sonication at different times;
- FIG. 22 is a schematic diagram showing the positional relationship between the molecular sieve microparticles adjacent to the fiber surface of the molecular sieve / fiber composite; wherein, schematic 1) is the aggregation of molecular sieve on the fiber surface in the composite material of the prior art, and schematic 2) Molecular sieves are independently dispersed on the fiber surface.
- Ion exchange capacity is the exchange capacity of compensating cations and solution cations outside the molecular sieve framework.
- the method for detecting the ion exchange capacity immersing a solution of 5M strontium chloride, calcium chloride and magnesium chloride at room temperature for 12 hours to obtain an ion exchanged molecular sieve / fiber composite material, and measuring the molecular sieve strontium ion, calcium ion and magnesium ion exchange degree.
- the "effective specific surface area of the molecular sieve” is the specific surface area of the molecular sieve of the molecular sieve / fiber composite material on the fiber surface.
- Detection method of "content of molecular sieve on fiber surface” The mass fraction of molecular sieve on the fiber is analyzed by thermogravimetric analyzer.
- the detection method of "the molecular sieve is evenly distributed on the fiber surface” is: the molecular sieve / fiber composite material randomly takes n samples at different locations, and analyzes the content of the molecular sieve on the fiber surface, where n is a positive integer greater than or equal to 8.
- the coefficient of variation is also called the "standard deviation rate", which is the ratio of the standard deviation to the mean multiplied by 100%.
- the coefficient of variation is an absolute value that reflects the degree of dispersion of the data. The smaller the value of the coefficient of variation, the smaller the degree of dispersion of the data, indicating that the smaller the difference in the content of molecular sieve on the fiber surface, the more uniform the distribution of molecular sieve on the fiber surface.
- the coefficient of variation of the content of the molecular sieves in the n samples is ⁇ 15%, which indicates that the molecular sieves are evenly distributed on the fiber surface.
- the coefficient of variation is ⁇ 10%, indicating that the molecular sieve is uniformly distributed on the fiber surface; preferably, the coefficient of variation is ⁇ 5%, indicating that the molecular sieve is uniformly distributed on the fiber surface; preferably, the coefficient of variation is It is ⁇ 2%, indicating that the molecular sieve is uniformly distributed on the fiber surface; preferably, the coefficient of variation is ⁇ 1%, indicating that the molecular sieve is uniformly distributed on the fiber surface; preferably, the coefficient of variation is ⁇ 0.5%, indicating that the molecular sieve is The fiber surface is evenly distributed; more preferably, the coefficient of variation is ⁇ 0.2%, which indicates that the molecular sieve is evenly distributed on the fiber surface.
- the detection method of the bonding strength between the molecular sieve and the fiber is as follows: the molecular sieve / fiber composite material is ultrasonicated in deionized water for ⁇ 20min, and the content of the molecular sieve on the fiber surface is analyzed using a thermogravimetric analyzer.
- the retention rate of the molecular sieve on the fiber, the retention rate (the content of the molecular sieve on the fiber surface before the ultrasound-the content of the molecular sieve on the fiber surface after the ultrasound) ⁇ 100% / the content of the molecular sieve on the fiber surface before the ultrasound. If the retention rate is greater than or equal to 90%, it indicates that a growth-matching coupling is formed between the molecular sieve and the fiber, and the molecular sieve is firmly bonded to the fiber.
- Detection method of D50 and D90 Observe the molecular sieve microparticles on the surface of molecular sieve / fiber composite material with scanning electron microscope and perform statistical analysis of particle size; the corresponding particle diameter and distribution percentage of molecular sieve microparticles reaching 50% will reach 90% The corresponding particle size.
- Detection method of hemostatic function The hemostatic function was evaluated by using a rabbit femoral arterial lethal model coagulation test. The specific steps are as follows: 1 Before the experiment, white rabbits were anesthetized with sodium pentobarbital intravenously (45mg / kg body weight), and their limbs and head The head was fixed on the experimental table, supine, and part of the hair was removed to expose the right leg groin. 2 Next, the skin and muscle of the femoral artery were cut longitudinally to expose the femoral artery, and the femoral artery was partially cut off (about one-half the circumference).
- the survival rate (total number of white rabbits in the experiment-the number of white rabbit deaths observed 2h after hemostasis) ⁇ 100% / total number of white rabbits in the experiment, wherein the number of white rabbits in each group is n, n is greater than Or a positive integer equal to 6. 4 Record the poor quality of the hemostatic compound before and after use, which is the amount of bleeding during the hemostasis of the wound.
- the manufacturing method of the Y-type molecular sieve / cotton fiber composite material of the present invention includes the following steps:
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio 10Na 2 O: Al 2 O 3 : 9SiO 2 : 200H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution is mixed with cotton fiber, and the mass ratio of the cotton fiber and the molecular sieve precursor solution is 1:20.
- the outer surface of the molecular sieve is composed of angular nanoparticles
- the inner surface (the surface in contact with the fiber) is composed of non-angular nanoparticles (Figure 13).
- the non-angular nanoparticles make the inner surface of the molecular sieve and the fiber surface better. Matching is conducive to the chemical bonding of molecular sieve and fibers; the average size of nanoparticles on the inner surface (148nm) is significantly smaller than that on the outer surface (61nm), and small-sized particles are more conducive to binding and tightly with the fibers (Figure 14).
- the detection method of the bonding strength between the molecular sieve and the fiber is as follows: the molecular sieve / fiber composite material is sonicated in deionized water for 20 minutes, and the content of the Y-type molecular sieve on the fiber surface is analyzed by a thermogravimetric analyzer. The same indicates that the retention rate of the molecular sieve on the fiber is 100%, which indicates that a growth matching coupling is formed between the molecular sieve and the fiber, and the molecular sieve is firmly bonded to the fiber.
- the molecular sieve in the Y-type molecular sieve / cotton fiber composite was analyzed by nitrogen isothermal adsorption and desorption, and a hysteresis loop was found in the isothermal adsorption curve, indicating that the molecular sieve has a mesoporous structure (Figure 15).
- the effective specific surface area of the molecular sieve in the Y-type molecular sieve / cotton fiber composite material obtained in this embodiment was measured to be 490 m 2 g -1 ;
- the degree of calcium ion exchange is 99.9%
- the degree of magnesium ion exchange is 97%
- the degree of strontium ion exchange is 90%.
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio 10Na 2 O: Al 2 O 3 : 9SiO 2 : 200H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution was transferred and heat-treated at 100 ° C for 24 hours to obtain a Y-type molecular sieve.
- the effective specific surface area of the Y-type molecular sieve was measured to be 490 m 2 g -1 , the degree of calcium ion exchange was 99.9%, the degree of magnesium ion exchange was 97%, and the degree of strontium ion exchange was 90%.
- the effective specific surface area and ion exchange capacity of the Y-type molecular sieve are used as reference values to evaluate the performance of the molecular sieve to the fiber surface in the comparative examples described below.
- This comparative example differs from Example 1 in that under the condition of no fiber addition (the traditional solution growth method), only a Y-type molecular sieve is synthesized, and using a scanning electron microscope ( Figure 16), the synthesized molecular sieve is a nanoparticle
- the composition of the complete microspheres differs from Example 1 in that there are no rough planes (inner surfaces) in contact with the fibers.
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio 10Na 2 O: Al 2 O 3 : 9SiO 2 : 200H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution was transferred and heat-treated at 100 ° C for 24 hours to obtain a Y-type molecular sieve.
- This comparative example differs from Example 1 in that the corresponding molecular sieve is synthesized without adding fibers (the traditional solution growth method).
- the synthesized molecular sieve is a complete microsphere composed of nanoparticles, and is scanned by electrons.
- the microscopic inspection differs from Example 1 in that there is no rough plane (inner surface) in contact with the fiber, so there is no growth-matched coupling between the molecular sieve and the fiber surface.
- the bond strength between the molecular sieve and the fiber was measured, and the molecular sieve / fiber composite material had a 5% retention rate on the fiber under the condition of ultrasonication for 20 minutes, indicating that the molecular sieve in the Y-type molecular sieve / cotton fiber composite material (impregnation method) and The fiber binding effect is weak, and the molecular sieve of Y-type molecular sieve / cotton fiber composite material (impregnation method) easily falls off (Fig. 17).
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio 10Na 2 O: Al 2 O 3 : 9SiO 2 : 200H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution was transferred and heat-treated at 100 ° C for 24 hours to obtain a Y-type molecular sieve.
- step 4 The solution prepared in step 3 is sprayed on the cotton fiber composite material.
- Example 1 The difference between this comparative example and Example 1 is that the synthesized molecular sieve is sprayed onto cotton fibers and tested by a scanning electron microscope.
- the difference from Example 1 is that there is no rough surface (inner surface) in contact with the fibers. Therefore, there is no growth matching coupling.
- the bonding strength between the molecular sieve and the fiber was measured.
- the retention rate of the molecular sieve on the fiber was 2% under the condition of ultrasonication for 20 min, indicating that the molecular sieve has a weak binding effect with the fiber, and the Y-type molecular sieve / cotton fiber composite material The molecular sieve (spray method) easily falls off.
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio 10Na 2 O: Al 2 O 3 : 9SiO 2 : 200H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution was transferred and heat-treated at 100 ° C for 24 hours to obtain a Y-type molecular sieve.
- the Y-type molecular sieve is uniformly dispersed in the aqueous solution.
- Cotton fibers were immersed in a 0.5 wt% polydiallyldimethylammonium chloride polyDADMAC aqueous solution at 60 ° C for 30 minutes to achieve adsorption of Y-type molecular sieves (polydiallyldimethylammonium chloride polyDADMAC is viscous Mixture 1).
- Example 1 The difference between this comparative example and Example 1 is that the synthesized molecular sieve is bonded to cotton fibers through a binder, and the scanning electron microscope test shows that the difference from Example 1 is that there is no rough contact with the fibers. (Inner surface), so there is no growth matching coupling.
- the bonding strength between the molecular sieve and the fiber was measured, and the molecular sieve / fiber composite material was sonicated for 20 minutes, and the retention rate of the molecular sieve on the fiber was 50%.
- the molecular sieve in the material (including the binder 1) easily falls off. By scanning electron microscopy, the molecular sieve was unevenly distributed on the fiber surface, and there was agglomeration of the molecular sieve.
- the effective specific surface area of the molecular sieve became 320m 2 g -1
- the calcium ion exchange degree became 75.9%
- the magnesium ion exchange degree became 57%
- the strontium ion exchange degree became 50%.
- the composite material added with a binder reduces the effective contact area between the molecular sieve and the reaction system, and reduces the ion exchange and pore substance exchange capacity of the molecular sieve.
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio 10Na 2 O: Al 2 O 3 : 9SiO 2 : 200H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution was transferred and heat-treated at 100 ° C for 24 hours to obtain a Y-type molecular sieve.
- the Y-type molecular sieve is dispersed in a polymerized N-halamine precursor water / ethanol solution (the polymerized N-halamine precursor is a binder 2).
- step 4 The solution prepared in step 3 is sprayed on the cotton fiber composite material.
- Example 1 The difference between this comparative example and Example 1 is that a molecular sieve containing a binder is sprayed onto cotton fibers and examined by a scanning electron microscope.
- the difference from Example 1 is that there is no rough surface in contact with the fibers ( (Inner surface), so there is no growth matching coupling.
- the bonding strength between the molecular sieve and the fiber was measured.
- the retention rate of the molecular sieve on the fiber was 41% under the condition of ultrasonication for 20 min, indicating that the molecular sieve has a weak binding effect with the fiber, and the Y-type molecular sieve / cotton fiber composite
- the molecular sieve in the material including the binder 2 is liable to fall off.
- the molecular sieve was unevenly distributed on the fiber surface, and there was agglomeration of the molecular sieve.
- the effective specific surface area of the molecular sieve became 256m 2 g -1
- the degree of calcium ion exchange became 65.9%
- the degree of magnesium ion exchange became 47%
- the degree of strontium ion exchange became 42%.
- the composite material added with a binder reduces the contact area between the effective molecular sieve and the reaction system, and reduces the ion exchange and pore substance exchange capacity of the molecular sieve.
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio 10Na 2 O: Al 2 O 3 : 9SiO 2 : 200H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution was transferred and heat-treated at 100 ° C for 24 hours to obtain a Y-type molecular sieve.
- the Y-type molecular sieve sample is dispersed in a silica sol-based inorganic binder (binder 3) solution to obtain a slurry of the molecular sieve and the binder mixture.
- bin 3 silica sol-based inorganic binder
- Step 3 After the prepared slurry is coated on cotton fibers, it is kept at room temperature for 1 hour, and then kept at 100 ° C for 1 hour. The fibers are completely dried to obtain a Y-type molecular sieve / cotton fiber composite material (including binder 3). .
- Example 1 The difference between this comparative example and Example 1 is that a molecular sieve containing a silica sol-based binder is coated on cotton fibers and examined by a scanning electron microscope.
- the difference from Example 1 is that there is no rough contact with the fibers. (Inner surface), so there is no growth matching coupling.
- the bonding strength between the molecular sieve and the fiber was measured.
- the retention rate of the molecular sieve on the fiber was 46% under the condition of ultrasonication for 20 minutes, indicating that the molecular sieve has a weak binding effect with the fiber, and the Y-type molecular sieve / cotton fiber composite
- the molecular sieve in (containing the binder 3) easily falls off.
- the molecular sieve was unevenly distributed on the fiber surface, and there was agglomeration of the molecular sieve.
- the effective specific surface area of the molecular sieve became 246m 2 g -1
- the degree of calcium ion exchange became 55.9%
- the degree of magnesium ion exchange became 57%
- the degree of strontium ion exchange became 40%.
- Adding a composite material with a binder reduces the effective contact area between the effective molecular sieve and the reaction system, and reduces the ion exchange and pore substance exchange capacity of the molecular sieve.
- zeolite precursor solution prepared according to the following molar ratio 7.5Na 2 O: Al 2 O 3 : 10SiO 2: 230H 2 O composition of the starting material, synthetic zeolite precursor solution, magnetically stirred and then left at room temperature 1h and 24h.
- the molecular sieve precursor solution was mixed with pretreated cotton fibers.
- Example 1 The difference between this comparative example and Example 1 is that the fiber is pretreated, but the structure of the fiber itself is seriously damaged, which affects the flexibility and elasticity of the fiber, and the fiber becomes brittle and hard. Take advantage of fiber as a carrier. After scanning electron microscope inspection, the molecular sieve was wrapped in the outer layer of the fiber, and there was still a gap between the fiber and the molecular sieve, indicating that this technology cannot tightly combine the two separate materials of molecular sieve and fiber. The difference from Example 1 by scanning electron microscopy is that there are no rough planes (inner surfaces) in contact with the fibers, so there is no growth matching coupling. The binding strength between the molecular sieve and the fiber was measured.
- the retention rate of the molecular sieve on the fiber was 63% under the condition of ultrasonication for 20 min.
- the molecular sieve in the material (fiber pretreatment) is easy to fall off.
- the agglomeration of the molecular sieve makes the effective specific surface area of the molecular sieve become 346m 2 g -1 , the degree of calcium ion exchange becomes 53%, the degree of magnesium ion exchange becomes 52%, and the degree of strontium ion exchange becomes 42%.
- the contact area between the effective molecular sieve and the reaction system is reduced, and the ion exchange and pore substance exchange capacity of the molecular sieve are reduced.
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio 10Na 2 O: Al 2 O 3 : 9SiO 2 : 200H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution was transferred and heat-treated at 100 ° C for 24 hours to obtain a Y-type molecular sieve.
- the Y-type molecular sieve is ground in a dimethylacetamide solvent to obtain a Y-type molecular sieve solution.
- Example 1 The difference between this comparative example and Example 1 is that the Y-type molecular sieve is blended and spun into the fiber. After detection by a scanning electron microscope, the molecular sieve and the fiber are simply physically mixed, and there is no growth matching coupling. After testing, the effective specific surface area of the molecular sieve became 126 m 2 g -1 , the degree of calcium ion exchange became 45.9%, the degree of magnesium ion exchange became 27%, and the degree of strontium ion exchange became 12%.
- the blending spinning method to prepare molecular sieve / fiber composite material greatly reduces the contact area between the effective molecular sieve and the reaction system, and reduces the ion exchange and pore substance exchange capacity of the molecular sieve.
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio 10Na 2 O: Al 2 O 3 : 9SiO 2 : 200H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution is mixed with cotton fiber, and the mass ratio of the cotton fiber and the molecular sieve precursor solution is 1: 0.3.
- the cotton fiber and the uniformly mixed molecular sieve precursor solution were heat-treated at 100 ° C for 24 hours to obtain a Y-type molecular sieve / cotton fiber composite material, and the content of the Y-type molecular sieve was 90% by weight.
- the difference between this comparative example and Example 1 is that the content of the Y-type molecular sieves is different.
- the content of the Y-type molecular sieves of this comparative example is greater than 80% by weight.
- the molecular sieves are clumped and wrapped on the fiber surface.
- Molecular sieves are not independently dispersed on the fiber surface, causing the undesirable phenomenon of fiber stiffening.
- the agglomeration of the molecular sieve makes the effective specific surface area of the molecular sieve become 346m 2 g -1 , the degree of calcium ion exchange becomes 53%, the degree of magnesium ion exchange becomes 52%, and the degree of strontium ion exchange becomes 42%. Both the specific surface area and the ion exchange capacity are significantly reduced.
- the manufacturing method of chabazite / cotton fiber composite material of the present invention includes the following steps:
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio 10Na 2 O: Al 2 O 3 : 9SiO 2 : 300H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution is mixed with cotton fiber, and the mass ratio of the cotton fiber and the molecular sieve precursor solution is 1: 0.5.
- the manufacturing method of the X-type molecular sieve / silk fiber composite material of the present invention includes the following steps:
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio 5.5Na 2 O: 1.65K 2 O: Al 2 O 3 : 2.2SiO 2 : 122H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution and the silk fiber are mixed, and the mass ratio of the silk fiber and the molecular sieve precursor solution is 1:10.
- the manufacturing method of the A-type molecular sieve / polyester fiber composite material of the present invention includes the following steps:
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio 3Na 2 O: Al 2 O 3 : 2SiO 2 : 120H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution is mixed with the polyester fiber, and the mass ratio of the polyester fiber and the molecular sieve precursor solution is 1:50.
- polyester fiber and the homogeneously mixed molecular sieve precursor solution were heat-treated at 100 ° C for 4 hours to obtain an A-type molecular sieve / polyester fiber composite material.
- the manufacturing method of the ZSM-5 molecular sieve / polypropylene fiber composite material of the present invention includes the following steps:
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio of 3.5Na 2 O: Al 2 O 3 : 28SiO 2 : 900H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution is mixed with polypropylene fibers, and the mass ratio of the polypropylene fibers to the molecular sieve precursor solution is 1: 200.
- the polypropylene fiber and the homogeneously mixed molecular sieve precursor solution were heat-treated at 180 ° C for 42 hours to obtain a ZSM-5 molecular sieve / polypropylene fiber composite material.
- the manufacturing method of the beta molecular sieve / rayon fiber composite material of the present invention includes the following steps:
- the manufacturing method of the mordenite / acetate fiber composite material of the present invention includes the following steps:
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio 5.5Na 2 O: Al 2 O 3 : 30SiO 2 : 810H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution is mixed with the acetate fiber, and the mass ratio of the acetate fiber and the molecular sieve precursor solution is 1: 300.
- the acetate fiber and the homogeneously mixed molecular sieve precursor solution were heat-treated at 170 ° C for 24 hours to obtain a mordenite / acetate fiber composite material.
- the manufacturing method of the L-type molecular sieve / carboxymethyl cellulose composite material of the present invention includes the following steps:
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio of 2.5K 2 O: Al 2 O 3 : 12SiO 2 : 155H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution is mixed with carboxymethyl cellulose, and the mass ratio of the amount of carboxymethyl cellulose to the molecular sieve precursor solution is 1: 1.
- the manufacturing method of the P-type molecular sieve / bamboo fiber composite material of the present invention includes the following steps:
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio 10Na 2 O: Al 2 O 3 : 9SiO 2 : 400H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution is mixed with bamboo fiber, and the mass ratio of the bamboo fiber to the molecular sieve precursor solution is 1: 2.
- the bamboo fiber and the homogeneously mixed molecular sieve precursor solution were heat-treated at 150 ° C for 96 hours to obtain a P-type molecular sieve / bamboo fiber composite material.
- the manufacturing method of the lyeite / linen fiber composite material of the present invention includes the following steps:
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio 10Na 2 O: Al 2 O 3 : 9SiO 2 : 320H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution and the linen fiber are mixed, and the mass ratio of the linen fiber and the molecular sieve precursor solution is 1: 1000.
- the manufacturing method of the X-type molecular sieve / wool composite material of the present invention includes the following steps:
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio 10Na 2 O: Al 2 O 3 : 9SiO 2 : 300H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution is mixed with wool, and the mass ratio of the amount of wool to the molecular sieve precursor solution is 1:20.
- the wool and the mixed molecular sieve precursor solution were heat-treated at 60 ° C for 16 hours to obtain an X-type molecular sieve / wool composite material.
- the manufacturing method of the X-type molecular sieve / wood fiber composite material of the present invention includes the following steps:
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio 10Na 2 O: Al 2 O 3 : 9SiO 2 : 300H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution is mixed with wood fiber, and the mass ratio of the wood fiber and the molecular sieve precursor solution is 1: 5.
- the manufacturing method of the X-type molecular sieve / lactide polymer fiber composite material of the present invention includes the following steps:
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio 10Na 2 O: Al 2 O 3 : 9SiO 2 : 300H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution and the lactide polymer fiber are mixed, and the mass ratio of the lactide polymer fiber and the molecular sieve precursor solution is 1:50.
- the lactide polymer fiber and the homogeneously mixed molecular sieve precursor solution were heat-treated at 90 ° C for 30 hours to obtain an X-type molecular sieve / lactide polymer fiber composite material, and the content of the X-type molecular sieve was 26% by weight.
- the manufacturing method of the X-type molecular sieve / glycolide polymer fiber composite material of the present invention includes the following steps:
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio 10Na 2 O: Al 2 O 3 : 9SiO 2 : 300H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution and the glycolide polymer fiber are mixed, and the mass ratio of the glycolide polymer fiber and the molecular sieve precursor solution is 1: 200.
- the manufacturing method of the X-type molecular sieve / polylactide-glycolide polymer fiber composite material of the present invention includes the following steps:
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio 10Na 2 O: Al 2 O 3 : 9SiO 2 : 300H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution and the polylactide-glycolide polymer fiber are mixed, and the mass ratio of the polylactide-glycolide polymer fiber and the molecular sieve precursor solution is 1:20.
- the polylactide-glycolide polymer fiber and the homogeneously mixed molecular sieve precursor solution were heat-treated at 90 ° C for 24 hours to obtain an X-type molecular sieve / polylactide-glycolide polymer fiber composite material, and the content of the X-type molecular sieve 20wt%.
- the manufacturing method of the X-type molecular sieve / polyamide fiber composite material of the present invention includes the following steps:
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio 10Na 2 O: Al 2 O 3 : 9SiO 2 : 300H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution and the polyamide fiber are mixed, and the mass ratio of the polyamide fiber and the molecular sieve precursor solution is 1: 0.8.
- the polyamide fiber and the homogeneously mixed molecular sieve precursor solution were heat-treated at 90 ° C. for 24 hours to obtain an X-type molecular sieve / polyamide fiber composite material, and the content of the X-type molecular sieve was 50% by weight.
- the manufacturing method of the X-type molecular sieve / rayon-polyester fiber composite material of the present invention includes the following steps:
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio 10Na 2 O: Al 2 O 3 : 9SiO 2 : 300H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution is mixed with a rayon-polyester fiber, and the mass ratio of the rayon-polyester fiber and the molecular sieve precursor solution is 1:50.
- the rayon-polyester fiber and the homogeneously mixed molecular sieve precursor solution were heat-treated at 110 ° C for 28 hours to obtain an X-type molecular sieve / rayon-polyester fiber composite material, and the content of the X-type molecular sieve was 5 wt%.
- the manufacturing method of the X-type molecular sieve / chitin fiber composite material of the present invention includes the following steps:
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio 10Na 2 O: Al 2 O 3 : 9SiO 2 : 300H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution and the chitin fiber are mixed, and the mass ratio of the chitin fiber and the molecular sieve precursor solution is 1: 1.5.
- the chitin fiber and the homogeneously mixed molecular sieve precursor solution were heat-treated at 90 ° C for 24 hours to obtain an X-type molecular sieve / chitin fiber composite material, and the content of the X-type molecular sieve was 20% by weight.
- the manufacturing method of the AlPO 4-5 molecular sieve / polyethylene fiber composite material of the present invention includes the following steps:
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio Al 2 O 3 : 1.3P 2 O 5 : 1.3HF: 425H 2 O: 6C 3 H 7 OH to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution is mixed with polyethylene fiber, and the mass ratio of the polyethylene fiber and the molecular sieve precursor solution is 1:20.
- the polyethylene fiber and the homogeneously mixed molecular sieve precursor solution were heat-treated at 180 ° C for 6 hours to obtain an AlPO 4-5 molecular sieve / polyethylene fiber composite material, and the content of the AlPO 4-5 molecular sieve was 18% by weight.
- the manufacturing method of the AlPO 4 -11 molecular sieve / polyvinyl chloride fiber composite material of the present invention includes the following steps:
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio Al 2 O 3 : 1.25P 2 O 5 : 1.8HF: 156H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution is mixed with polyvinyl chloride fiber, and the mass ratio of the polyvinyl chloride fiber and the molecular sieve precursor solution is 1: 0.5.
- the polyvinyl chloride fiber and the homogeneously mixed molecular sieve precursor solution were heat-treated at 145 ° C for 18 hours to obtain an AlPO 4 -11 molecular sieve / polyvinyl chloride fiber composite material, and the content of the AlPO 4 -11 molecular sieve was 28% by weight.
- the manufacturing method of SAPO-31 molecular sieve / polyacrylonitrile fiber composite material of the present invention includes the following steps:
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio Al 2 O 3 : P 2 O 5 : 0.5SiO 2 : 60H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution and the polyacrylonitrile fiber are mixed, and the mass ratio of the polyacrylonitrile fiber and the molecular sieve precursor solution is 1: 1000.
- the polyacrylonitrile fiber and the homogeneously mixed molecular sieve precursor solution were heat-treated at 175 ° C for 14.5h to obtain a SAPO-31 molecular sieve / polyacrylonitrile fiber composite material.
- the content of the SAPO-31 molecular sieve was 34% by weight.
- the manufacturing method of SAPO-34 molecular sieve / viscose fiber composite material of the present invention includes the following steps:
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio Al 2 O 3 : 1.06P 2 O 5 : 1.08 SiO 2 : 2.09 morpholine: 60H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution and the viscose fiber are mixed, and the mass ratio of the viscose fiber and the molecular sieve precursor solution is 1:20.
- the viscose fiber and the homogeneously mixed molecular sieve precursor solution were heat-treated at 175 ° C for 14.5 h to obtain a SAPO-34 molecular sieve / chitin fiber composite material.
- the content of the SAPO-34 molecular sieve was 1% by weight.
- the manufacturing method of SAPO-11 molecular sieve / chitin fiber composite material of the present invention includes the following steps:
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio Al 2 O 3 : P 2 O 5 : 0.5SiO 2 : 60H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution and the chitin fiber are mixed, and the mass ratio of the chitin fiber and the molecular sieve precursor solution is 1: 1.5.
- the chitosan fiber and the homogeneously mixed molecular sieve precursor solution were heat-treated at 175 ° C for 48 hours to obtain a SAPO-11 molecular sieve / chitin fiber composite material, and the content of the SAPO-11 molecular sieve was 35% by weight.
- the manufacturing method of the BAC-1 molecular sieve / chitin fiber composite material of the present invention includes the following steps:
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio 1.5B 2 O 3 : 2.25Al 2 O 3 : 2.5CaO: 200H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution and the chitin fiber are mixed, and the mass ratio of the chitin fiber and the molecular sieve precursor solution is 1: 100.
- the chitin fiber and the homogeneously mixed molecular sieve precursor solution were heat-treated at 200 ° C for 72 hours to obtain a BAC-1 molecular sieve / chitin fiber composite material, and the content of the BAC-1 molecular sieve was 0.5% by weight.
- 15 samples of the prepared BAC-1 molecular sieve / chitin fiber composite material were randomly taken from different locations, and the content of the BAC-1 molecular sieve on the fiber surface was analyzed.
- the average content of the molecular sieve on the fiber in the 15 samples was 0.5. wt%, the standard deviation of the sample is 0.04 wt%, and the coefficient of variation is 8%, indicating that the BAC-1 molecular sieve is evenly distributed on the fiber surface.
- the manufacturing method of the BAC-3 molecular sieve / chitin fiber composite material of the present invention includes the following steps:
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio 3B 2 O 3 : Al 2 O 3 : 0.7Na 2 O: 100H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution and the chitin fiber are mixed, and the mass ratio of the chitin fiber and the molecular sieve precursor solution is 1: 2.
- the chitin fiber and the homogeneously mixed molecular sieve precursor solution were heat-treated at 200 ° C for 240 hours to obtain a BAC-3 molecular sieve / chitin fiber composite material, and the content of the BAC-3 molecular sieve was 27% by weight.
- 15 samples of the prepared BAC-3 molecular sieve / chitin fiber composite material were randomly selected at different locations, and the content of the BAC-3 molecular sieve on the fiber surface was analyzed.
- the average content of the molecular sieve on the fiber in the 15 samples was 27wt. %,
- the sample standard deviation is 0.08 wt%, and the coefficient of variation is 0.3%, which indicates that the BAC-3 molecular sieve is evenly distributed on the fiber surface.
- the manufacturing method of the BAC-10 molecular sieve / chitin fiber composite material of the present invention includes the following steps:
- a molecular sieve precursor solution is prepared, and a starting material is composed according to the following molar ratio of 2.5B 2 O 3 : 2Al 2 O 3 : CaO: 200H 2 O to synthesize a molecular sieve precursor solution.
- the molecular sieve precursor solution and the chitin fiber are mixed, and the mass ratio of the chitin fiber and the molecular sieve precursor solution is 1:20.
- the chitin fiber and the homogeneously mixed molecular sieve precursor solution were heat-treated at 160 ° C for 72 hours to obtain a BAC-10 molecular sieve / chitin fiber composite material, and the content of the BAC-10 molecular sieve was 21% by weight.
- 15 samples of the prepared BAC-10 molecular sieve / chitin fiber composite material were randomly selected at different locations, and the content of the BAC-10 molecular sieve on the fiber surface was analyzed.
- the average content of the molecular sieve on the fiber in the 15 samples was 21 wt. %,
- the standard deviation of the sample is 0.9 wt%, and the coefficient of variation is 4.2%, indicating that the BAC-10 molecular sieve is evenly distributed on the fiber surface.
- Combat Gauze is an inorganic hemostatic material (clay, kaolin) attached to the fiber surface. Observed from a scanning electron microscope, the inorganic hemostatic material is unevenly distributed on the fiber surface ( Figure 20), and the material is not bonded to the fiber surface, and it is easy to fall off from the fiber surface.
- Clay retention rate on the gauze fiber is ⁇ 10% under ultrasonic condition for 1min under ultrasonic cleaner; Clay retention rate is 5% or less on the gauze fiber under ultrasonic condition for 5min ( Figure 21); under ultrasound condition for 20min The retention rate of clay on the gauze fibers is ⁇ 5%. This defective structural form limits the hemostatic properties of the hemostatic product and the potential risk of causing sequelae or other side effects.
- the appropriate size of the molecular sieve in the molecular sieve / fiber composite material can promote the uniform distribution of the molecular sieve on the fiber surface.
- Table 1 the size of the molecular sieve and the average particle diameter of the nano-particles on the inner and outer surfaces of the synthetic composite materials are shown in Table 1.
- the synthetic molecular sieve / fiber composites of Examples 1-26 were sonicated in deionized water for 20, 40, 60, and 80 min, respectively. After testing, the retention rates of the molecular sieve on the fiber are shown in the table.
- Examples 1-26 enumerate molecular sieves / fiber composites that synthesize different molecular sieves and different fibers.
- the synthesized molecular sieves / fiber composites have the characteristics that the molecular sieves are evenly distributed on the fiber surface with a suitable size, making the fibers Performance remains consistent overall.
- Example 1-26 Molecular sieve / fiber composite material The inner surface of the molecular sieve in contact with the fiber is a rough plane.
- the molecular sieve / fiber composite material is sonicated in deionized water for ⁇ 20min.
- the thermogravimetric analyzer is used to analyze the Y-type molecular sieve on the fiber surface.
- the retention rate is greater than or equal to 90%, which indicates that a growth-matching coupling is formed between the molecular sieve and the fiber, and the molecular sieve is firmly bonded to the fiber.
- the adhesive content of the contact surface between the molecular sieve and the fiber in Examples 1-26 of the present invention is 0, and the degree of calcium ion exchange of the molecular sieve is ⁇ 90%, the degree of magnesium ion exchange is ⁇ 75%, and the degree of strontium ion exchange is ⁇ 70%. It overcomes the defects of high synthetic cost, low effective surface area, and clogging of molecular sieve channels adhered to the fiber through the adhesive.
- the molecular sieves are independently dispersed on the fiber surface to promote the uniform distribution of the molecular sieves on the fiber surface.
- the inner surface of the molecular sieve is composed of non-angular nanoparticles.
- the non-angular nanoparticles make the inner surface of the molecular sieve and the fiber surface better. Matching is beneficial to the combination of molecular sieve and fiber.
- the method for synthesizing a molecular sieve / fiber composite material does not include a template agent, and the molecular sieve is a mesoporous molecular sieve. The method has the characteristics of low cost, simple process and environmental friendliness.
- the invention also provides a molecular sieve / fiber composite hemostatic material.
- the molecular sieve / fiber composite hemostatic material has a reduced amount of molecular sieve relative to the molecular sieve particle hemostatic material, the hemostatic effect of the molecular sieve / fiber composite hemostatic material is superior to commercial particles.
- molecular sieves Quikclot
- the molecular sieve is uniformly distributed on the fiber surface with a suitable size, and the growth matching coupling between the molecular sieve and the fiber is formed.
- the molecular sieve has a strong binding effect with the fiber.
- the molecular sieve has a high effective specific surface area and substance exchange capacity on the fiber surface, which makes the hemostatic material of the present invention stop bleeding.
- the hemostatic effect in the process is better than the composite materials with weak molecular sieve and fiber binding capacity or low effective specific surface area and low material exchange capacity in the prior art.
- the rabbit femoral arterial lethal model has a short hemostatic time, low blood loss, and significantly improved survival rate. And make sure that the molecular sieve / fiber composite is safe during the hemostatic process.
- molecular sieve / fiber composite material has the following advantages as a hemostatic material: 1) the wound surface is easy to clean after hemostasis, which is convenient for professionals to process later; 2) the wound size and actual operation needs to be cut; 3) the wound after hemostasis is dry, Healed well.
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Abstract
Description
Claims (82)
- 一种分子筛/纤维复合材料,其特征在于,所述分子筛/纤维复合材料包含分子筛和纤维,所述分子筛分布于纤维表面且直接与所述纤维表面接触,所述分子筛的粒径D90为0.01~50μm,所述分子筛的粒径D50为0.005~30μm;所述分子筛在纤维表面均匀分布,所述分子筛在纤维表面均匀分布的检测方法为:所述的分子筛/纤维复合材料在不同部位随机取n个样品,n为大于或等于8的正整数,分析分子筛在纤维表面的含量,所述n个样品中分子筛的含量的变异系数≤15%。
- 根据权利要求1所述的分子筛/纤维复合材料,其特征在于,所述分子筛的粒径D90为0.1~30μm,所述分子筛的粒径D50为0.05~15μm;优选的,所述分子筛的粒径D90为0.5~20μm,所述分子筛的粒径D50为0.25~10μm;优选的,所述分子筛的粒径D90为1~15μm,所述分子筛的粒径D50为0.5~8μm;更优选的,所述分子筛的粒径D90为5~10μm,所述分子筛的粒径D50为2.5~5μm。
- 根据权利要求1所述的分子筛/纤维复合材料,其特征在于,所述的变异系数为≤10%;优选的,所述的变异系数为≤5%;优选的,所述的变异系数为≤2%;优选的,所述的变异系数为≤1%;优选的,所述的变异系数为≤0.5%;更优选的,所述的变异系数为≤0.2%。
- 根据权利要求1所述的分子筛/纤维复合材料,其特征在于,所述分子筛与纤维的接触面的粘合剂含量为0。
- 根据权利要求1所述的分子筛/纤维复合材料,其特征在于,所述分子筛与纤维的接触面为内表面,所述内表面为粗糙的平面,在所述内表面上分子筛与纤维之间形成生长匹配耦合,所述分子筛与纤维的非接触面为外表面,所述外表面为非平面。
- 根据权利要求5所述的分子筛/纤维复合材料,其特征在于,所述形成生长匹配耦合的检测方法为:所述分子筛/纤维复合材料在超声≥20min的条件下,分子筛在纤维上的保留率≥90%。
- 根据权利要求5所述的分子筛/纤维复合材料,其特征在于,所述形成生长匹配耦合的检测方法为:所述分子筛/纤维复合材料在超声≥40min的条件下,分子筛在纤维上的保留率≥90%。
- 根据权利要求5所述的分子筛/纤维复合材料,其特征在于,所述形成生长匹配耦合的检测方法为:所述分子筛/纤维复合材料在超声≥60min的条件下,分子筛在纤维上的保留率≥90%。
- 根据权利要求6-8任一项所述的分子筛/纤维复合材料,其特征在于,所述的保留率≥95%;更优选的,所述的保留率为100%。
- 根据权利要求5所述的分子筛/纤维复合材料,其特征在于,所述的内表面和外表面均由分子筛纳米粒子构成。
- 根据权利要求10所述的分子筛/纤维复合材料,其特征在于,所述外表面分子筛纳米粒子的平均尺寸大于内表面分子筛纳米粒子的平均尺寸。
- 根据权利要求1-11任一项所述的分子筛/纤维复合材料,其特征在于,所述分子筛独立分散在所述纤维表面。
- 根据权利要求12的分子筛/纤维复合材料,其特征在于,所述的独立分散是指分子筛微观粒子相互之间存在间隙地分散在纤维表面。
- 根据权利要求12的分子筛/纤维复合材料,其特征在于,所述的独立分散是分子筛微观粒子与其最相邻的分子筛微观粒子之间的最小距离大于等于两个分子筛微观粒子粒径的和的二分之一。
- 根据权利要求10所述的分子筛/纤维复合材料,其特征在于,所述外表面分子筛纳米粒子为有棱角的粒子。
- 根据权利要求10所述的分子筛/纤维复合材料,其特征在于,所述内表面分子筛纳米粒子为没有棱角的粒子。
- 根据权利要求10所述的分子筛/纤维复合材料,其特征在于,所述内表面分子筛纳米粒子的平均尺寸为2~100nm;优选的,所述的平均尺寸为10~60nm。
- 根据权利要求10所述的分子筛/纤维复合材料,其特征在于,所述外表面分子筛纳米粒子的平均尺寸为50~500nm;优选的,所述的平均尺寸为100~300nm。
- 根据权利要求5所述的分子筛/纤维复合材料,其特征在于,所述的非平面由曲线或直线构成。
- 根据权利要求19所述的分子筛/纤维复合材料,其特征在于,所述的非平面为球面。
- 根据权利要求1所述的分子筛/纤维复合材料,其特征在于,所述的分子筛为介孔分子筛。
- 根据权利要求1-21任一项所述的分子筛/纤维复合材料,其特征在于,所述的分子筛的含量占分子筛/纤维复合材料的0.05~80wt%;优选的,所述的分子筛的含量占分子筛/纤维复合材料的1~50wt%;优选的,所述的分子筛的含量占分子筛/纤维复合材料的5~35wt%;优选的,所述的分子筛的含量占分子筛/纤维复合材料的10~25wt%;更优选的,所述的分子筛的含量占分子筛/纤维复合材料的15~20wt%。
- 根据权利要求1所述的分子筛/纤维复合材料,其特征在于,所述分子筛选自硅铝酸盐分子筛、磷酸盐分子筛、硼酸盐分子筛、杂原子分子筛的任意一种或多种。
- 根据权利要求23所述的分子筛/纤维复合材料,其特征在于,所述的硅铝酸盐分子筛选自X型分子筛、Y型分子筛、A型分子筛、ZSM-5分子筛、菱沸石、β分子筛、丝光沸石、L型分子筛、P型分子筛、麦钾沸石的任意一种或者多种。
- 根据权利要求23所述的分子筛/纤维复合材料,其特征在于,所述的磷酸盐分子筛选自AlPO 4-5型分子筛、AlPO 4-11型分子筛、SAPO-31型分子筛、SAPO-34型分子筛、SAPO-11型分子筛的任意一种或者多种。
- 根据权利要求23所述的分子筛/纤维复合材料,其特征在于,所述的硼酸盐分子筛选自BAC-1分子筛,BAC-3分子筛,BAC-10分子筛的任意一种或者多种。
- 根据权利要求23所述的分子筛/纤维复合材料,其特征在于,所述的杂原子分子筛为杂原子元素置换分子筛骨架的部分硅、铝、磷而形成含其他元素的分子筛。
- 根据权利要求27所述的分子筛/纤维复合材料,其特征在于,所述的杂原子元素选自第四、五、六周期的过渡金属元素的任意一种或者多种。
- 根据权利要求1-28任一项所述的分子筛/纤维复合材料,其特征在于,所述分子筛为金属离子交换后的分子筛。
- 根据权利要求29所述的分子筛/纤维复合材料,其特征在于,所述的金属离子选自锶离子、钙离子、镁离子、银离子、锌离子、钡离子、钾离子、铵根离子、铜离子的任意一种或者多种。
- 根据权利要求1-30任一项所述的分子筛/纤维复合材料,其特征在于,所述纤维为重复单元中含有羟基的聚合物。
- 根据权利要求1-30任一项所述的分子筛/纤维复合材料,其特征在于,所述纤维选自绸丝纤维、甲壳素纤维、人造丝纤维、醋酸纤维、羧甲基纤维素、竹纤维、棉花纤维、亚麻布纤维、羊毛、木纤维、丙交酯聚合物纤维、乙交酯聚合物纤维、聚酯纤维(PET)、聚酰胺纤维(PA)、聚丙烯纤维(PP)、聚乙烯纤维(PE)、聚氯乙烯纤维(PVC)、聚丙烯腈纤维、粘胶纤维的任意一种或者多种。
- 根据权利要求1所述分子筛/纤维复合材料的制备方法,其特征在于,所述的制备方法为原位生长法,所述原位生长法包括如下步骤:1)制备分子筛前驱体溶液,然后与纤维混合;2)将步骤1)中的纤维和分子筛前驱体溶液的混合物将其热处理,得到分子筛/纤维复合材料。
- 根据权利要求33所述的制备方法,其特征在于,所述分子筛前驱体溶液中不包含模板剂。
- 根据权利要求33所述的制备方法,其特征在于,所述步骤2)热处理的温度为60~220℃,时间为4~240h。
- 根据权利要求33所述的制备方法,其特征在于,所述步骤1)纤维与分子筛前驱体溶液的质量比为1:0.5~1:1000;优选的,所述步骤1)纤维与分子筛前驱体溶液的质量比为1:0.8~1:100;优选的,所述步骤1)纤维与分子筛前驱体溶液的质量比为1:1~1:50;优选的,所述步骤1)纤维与分子筛前驱体溶液的质量比为1:1.5~1:20;优选的,所述步骤1)纤维与分子筛前驱体溶液的质量比为1:2~1:10;更优选的,所述步骤1)纤维与分子筛前驱体溶液的质量比为1:2~1:5。
- 根据权利要求33所述的制备方法,其特征在于,所述的分子筛为介孔分子筛。
- 根据权利要求33所述的制备方法,其特征在于,所述分子筛的粒径D90为0.1~30μm,所述分子筛的粒径D50为0.05~15μm;优选的,所述分子筛的粒径D90为0.5~20μm,所述分子筛的粒径D50为0.25~10μm;优选的,所述分子筛的粒径D90为1~15μm,所述分子筛的粒径D50为0.5~8μm;更优选的,所述分子筛的粒径D90为5~10μm,所述分子筛的粒径D50为2.5~5μm。
- 根据权利要求33所述的制备方法,其特征在于,所述的变异系数为≤10%;优选的,所述的变异系数为≤5%;优选的,所述的变异系数为≤2%;优选的,所述的变异系数为≤1%;优选的,所述的变异系数为≤0.5%;更优选的,所述的变异系数为≤0.2%。
- 根据权利要求33所述的制备方法,其特征在于,所述分子筛与纤维的接触面的粘合剂含量为0。
- 根据权利要求33所述的制备方法,其特征在于,所述分子筛与纤维的接触面为内表面,所述内表面为粗糙的平面,在所述内表面上分子筛与纤维之间形成生长匹配耦合,所述分子筛与纤维的非接触面为外表面,所述外表面为非平面。
- 根据权利要求41所述的制备方法,其特征在于,所述形成生长匹配耦合的检测方法为:所述分子筛/纤维复合材料在超声≥20min的条件下,分子筛在纤维上的保留率≥90%。
- 根据权利要求41所述的制备方法,其特征在于,所述形成生长匹配耦合的检测方法为:所述分子筛/纤维复合材料在超声≥40min的条件下,分子筛在纤维上的保留率≥90%。
- 根据权利要求41所述的制备方法,其特征在于,所述形成生长匹配耦合的检测方法为:所述分子筛/纤维复合材料在超声≥60min的条件下,分子筛在纤维上的保留率≥90%。
- 根据权利要求42-44任一项所述的制备方法,其特征在于,所述的保留率≥95%;更优选的,所述的保留率为100%。
- 根据权利要求41所述的制备方法,其特征在于,所述的内表面和外表面均由分子筛纳米粒子构成。
- 根据权利要求46所述的制备方法,其特征在于,所述外表面分子筛纳米粒子的平均尺寸大于内表面分子筛纳米粒子的平均尺寸。
- 根据权利要求33-47任一项所述的制备方法,其特征在于,所述分子筛独立分散在所述纤维表面。
- 根据权利要求48的制备方法,其特征在于,所述的独立分散是指分子筛微观粒子相互之间存在间隙地分散在纤维表面。
- 根据权利要求48的制备方法,其特征在于,所述的独立分散是分子筛微观粒子与其最 相邻的分子筛微观粒子之间的最小距离大于等于两个分子筛微观粒子粒径的和的二分之一。
- 根据权利要求33所述的制备方法,其特征在于,所述的分子筛的含量占分子筛/纤维复合材料的0.05~80wt%;优选的,所述的分子筛的含量占分子筛/纤维复合材料的1~50wt%;优选的,所述的分子筛的含量占分子筛/纤维复合材料的5~35wt%;优选的,所述的分子筛的含量占分子筛/纤维复合材料的10~25wt%;更优选的,所述的分子筛的含量占分子筛/纤维复合材料的15~20wt%。
- 根据权利要求33-51任一项所述的制备方法,其特征在于,所述分子筛选自硅铝酸盐分子筛、磷酸盐分子筛、硼酸盐分子筛、杂原子分子筛的任意一种或多种。
- 根据权利要求52所述的制备方法,其特征在于,所述的硅铝酸盐分子筛选自X型分子筛、Y型分子筛、A型分子筛、ZSM-5分子筛、菱沸石、β分子筛、丝光沸石、L型分子筛、P型分子筛、麦钾沸石的任意一种或者多种。
- 根据权利要求52所述的制备方法,其特征在于,所述的磷酸盐分子筛选自AlPO 4-5型分子筛、AlPO 4-11型分子筛、SAPO-31型分子筛、SAPO-34型分子筛、SAPO-11型分子筛的任意一种或者多种。
- 根据权利要求52所述的制备方法,其特征在于,所述的硼酸盐分子筛选自BAC-1分子筛,BAC-3分子筛,BAC-10分子筛的任意一种或者多种。
- 根据权利要求52所述的制备方法,其特征在于,所述的杂原子分子筛为杂原子元素置换分子筛骨架的部分硅、铝、磷而形成含其他元素的分子筛。
- 根据权利要求56所述的制备方法,其特征在于,所述的杂原子元素选自第四、五、六周期的过渡金属元素的任意一种或者多种。
- 根据权利要求33-57任一项所述的制备方法,其特征在于,所述纤维为重复单元中含有羟基的聚合物。
- 根据权利要求33-57任一项所述的制备方法,其特征在于,所述纤维选自绸丝纤维、甲壳素纤维、人造丝纤维、醋酸纤维、羧甲基纤维素、竹纤维、棉花纤维、亚麻布纤维、羊毛、木纤维、丙交酯聚合物纤维、乙交酯聚合物纤维、聚酯纤维(PET)、聚酰胺纤维(PA)、聚丙烯纤维(PP)、聚乙烯纤维(PE)、聚氯乙烯纤维(PVC)、聚丙烯腈纤维、粘胶纤维的任意一种或者多种。
- 一种分子筛/纤维复合改性材料,所述的改性材料包含添加剂、权利要求1-32任一项所述的分子筛/纤维复合材料或权利要求33-59任一项所述的制备方法制得的分子筛/纤维复合材料。
- 根据权利要求60所述的改性材料,其特征在于,所述的添加剂选自金属、含金属离子的化合物、合成高分子化合物、难溶性多糖、蛋白质、核酸、颜料、抗氧剂、防霉剂、去垢剂、表面活性剂、抗生素、抗菌剂、抗微生物剂、抗炎剂、止痛剂、抗组胺剂的任意一种或多种。
- 根据权利要求61所述的改性材料,其特征在于,所述的合成高分子化合物选自加聚反应制得的高分子化合物、缩聚反应制得的高分子化合物、聚酰胺类高分子化合物、合成橡胶类高分子化合物的任意一种或者多种。
- 根据权利要求62所述的改性材料,其特征在于,所述的蛋白质选自纤维蛋白、胶原蛋白、氧化还原酶、转移酶、水解酶、裂合酶、异构酶、合成酶的任意一种或多种。
- 根据权利要求63所述的改性材料,其特征在于,所述的转移酶选自甲基转移酶、氨基转移酶、乙酰转移酶、转硫酶、激酶、多聚酶的任意一种或多种。
- 根据权利要求63所述的改性材料,其特征在于,所述的水解酶选自淀粉酶、蛋白酶、脂肪酶、磷酸酶、糖苷酶的任意一种或多种。
- 根据权利要求63所述的改性材料,其特征在于,所述的裂合酶选自脱水酶、脱羧酶、碳酸酐酶、醛缩酶、柠檬酸合酶的任意一种或多种。
- 根据权利要求63所述的改性材料,其特征在于,所述的合成酶选自谷氨酰胺合成酶、DNA连接酶、依赖生物素的羧化酶的任意一种或者多种。
- 根据权利要求61所述的改性材料,其特征在于,所述的抗生素选自喹诺酮类抗生素、β-内酰胺类抗生素、大环内酯类、氨基糖苷类抗生素的任意一种或多种。
- 根据权利要求61所述的改性材料,其特征在于:所述的难溶性多糖选自天然的高分子多糖、改性的高分子多糖或者它们的混合物。
- 根据权利要求69所述的改性材料,其特征在于:所述的改性的高分子多糖选自羧基改性的高分子多糖、氨基改性的高分子多糖、巯基改性的高分子多糖中的任意一种或多种。
- 根据权利要求69或70所述的改性材料,其特征在于:所述的高分子多糖选自纤维素、木质素、淀粉、壳聚糖、琼脂糖中的任意一种或多种。
- 一种复合物,其特征在于:所述的复合材料包含权利要求1-32任一项所述的分子筛/纤维复合材料或权利要求33-59任一项的制备方法制得的分子筛/纤维复合材料。
- 根据权利要求72所述的复合物,其特征在于:所述的复合物为止血材料。
- 根据权利要求73所述的复合物,其特征在于:所述的止血材料为止血织物。
- 根据权利要求74所述的复合物,其特征在于:所述的止血织物选自止血绷带、止血纱布、止血布料、止血服装、止血棉、止血缝合线、止血纸、止血创口贴的任意一种或多种。
- 根据权利要求75所述的复合物,其特征在于:所述的止血服装为穿于人体起保护和装饰作用的材料。
- 根据权利要求75或76所述的复合物,其特征在于:所述的止血服装选自止血内衣、止血背心、止血帽、止血裤的任意一种或者多种。
- 根据权利要求72所述的复合物,其特征在于:所述的复合材料为抗辐射材料。
- 根据权利要求78所述的复合物,其特征在于:所述的抗辐射材料选自是抗辐射衣服、抗辐射伞、抗辐射帽的任意一种或者多种。
- 根据权利要求72所述的复合物,其特征在于:所述的复合材料为抗菌材料。
- 权利要求60-71任一项所述的分子筛/纤维复合改性材料在止血、美容、除臭、杀菌、水体净化、空气净化、抗辐射领域的用途。
- 权利要求72-80任一项所述的复合物在止血、美容、除臭、杀菌、水体净化、空气净化、抗辐射领域的用途。
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118772628A (zh) * | 2024-07-29 | 2024-10-15 | 南京跃贝新材料科技有限公司 | 汽车门框饰条表面不发白的高流动性聚酰胺复合材料的制备方法 |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112471176A (zh) * | 2020-11-26 | 2021-03-12 | 中国第一汽车股份有限公司 | 一种汽车革用分子筛基抗菌添加剂及其制备方法和应用 |
| CN112657462A (zh) * | 2020-12-09 | 2021-04-16 | 江西茂盛环境有限公司 | 一种废气吸附材料及其制备方法 |
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| CN113398319B (zh) * | 2021-07-21 | 2022-07-29 | 军事科学院系统工程研究院卫勤保障技术研究所 | 一种止血材料的制备方法及产品 |
| CN113668143B (zh) * | 2021-08-28 | 2022-05-27 | 山东驼王非织造布有限公司 | 一种抗菌聚丙烯非织造布的制备方法 |
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| CN116640456B (zh) * | 2023-06-14 | 2024-05-24 | 广州大学 | 一种负载型埃洛石纳米管改性沥青及其制备方法 |
| CN119161496B (zh) * | 2023-06-20 | 2025-10-10 | 中国科学院大连化学物理研究所 | 一种纤维寡糖的制备方法 |
| CN116837624B (zh) * | 2023-08-09 | 2025-08-08 | 杭州沸创生命科技股份有限公司 | 一种铅基沸石纤维复合材料及其制备方法 |
| CN119346145B (zh) * | 2024-12-24 | 2025-03-21 | 岳阳怡天化工有限公司 | 一种高耐磨的中孔fcc催化剂的制备方法及其应用 |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6030698A (en) * | 1994-12-19 | 2000-02-29 | Lockheed Martin Energy Research Corporation | Activated carbon fiber composite material and method of making |
| US20040028900A1 (en) | 2002-08-06 | 2004-02-12 | The Board Of Regents Of The University Of Nebraska | Stable zeolite/cellulose composite materials and method of preparation |
| CN1779004A (zh) | 2004-11-26 | 2006-05-31 | 新乡化纤股份有限公司 | 一种抗菌粘胶纤维及其生产方法 |
| US7390452B2 (en) | 2002-03-08 | 2008-06-24 | Board Of Regents, The University Of Texas System | Electrospinning of polymer and mesoporous composite fibers |
| CN101541274A (zh) | 2006-10-30 | 2009-09-23 | Z-医疗公司 | 基于粘土的止血剂及其输送装置 |
| CN101687056A (zh) | 2007-03-06 | 2010-03-31 | Z-麦迪卡公司 | 基于粘土的止血剂及其传递装置 |
| US7739452B2 (en) | 2001-10-23 | 2010-06-15 | Stephen Waller Melvin | Method and apparatus for hardware enforced virtual sequentiality |
| CN101804327A (zh) * | 2010-04-02 | 2010-08-18 | 南京大学 | 一种成型的二氧化碳吸附材料及其制法 |
| CN104888267A (zh) | 2015-05-25 | 2015-09-09 | 浙江华峰氨纶股份有限公司 | 一种医用止血氨纶纤维织物及其制备方法 |
| CN106278368A (zh) * | 2016-08-15 | 2017-01-04 | 北京大学深圳研究生院 | 一种复合分子筛膜及其制备方法和应用 |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59133235A (ja) * | 1983-01-21 | 1984-07-31 | Kanebo Ltd | 殺菌性ポリマー組成物及びその製造法 |
| FR2786710B1 (fr) | 1998-12-04 | 2001-11-16 | Ceramiques Tech Soc D | Membrane comprenant un support poreux et une couche d'un tamis modeculaire et son procede de preparation |
| GB9922013D0 (en) * | 1999-09-17 | 1999-11-17 | Univ Sussex | Peptides |
| DE10053359A1 (de) * | 2000-10-27 | 2002-05-08 | Thueringisches Inst Textil | Verfahren zur Herstellung von cellulosischen Formkörpern mit neutraladsorbierenden Eigenschaften |
| CN101036591A (zh) | 2005-11-07 | 2007-09-19 | 雷蒙德·J·休伊 | 供给用于形成血凝块的分子筛材料的装置 |
| US20070154510A1 (en) * | 2005-12-30 | 2007-07-05 | Wilcher Steve A | Adsorbent-Containing Hemostatic Devices |
| US10174129B2 (en) * | 2007-02-14 | 2019-01-08 | Eastman Chemical Company | Regioselectively substituted cellulose esters produced in a carboxylated ionic liquid process and products produced therefrom |
| WO2008127497A2 (en) * | 2007-02-21 | 2008-10-23 | The Regents Of The University Of California | Hemostatic compositions and methods of use |
| US8883194B2 (en) | 2007-11-09 | 2014-11-11 | Honeywell International, Inc. | Adsorbent-containing hemostatic devices |
| WO2009140266A2 (en) * | 2008-05-14 | 2009-11-19 | Cornell University | Polymeric materials incorporating core-shell silica nanoparticles |
| US8795718B2 (en) | 2008-05-22 | 2014-08-05 | Honeywell International, Inc. | Functional nano-layered hemostatic material/device |
| CN101746776A (zh) * | 2009-10-27 | 2010-06-23 | 华南理工大学 | 一种在α-Al2O3中空纤维表面合成NaA型分子筛膜的方法 |
| WO2011146154A2 (en) * | 2010-02-04 | 2011-11-24 | Drexel University | Room temperature ionic liquid-epoxy systems as dispersants and matrix materials for nanocomposites |
| CN102728399B (zh) * | 2012-06-26 | 2014-11-05 | 华东师范大学 | 一种金属纤维/分子筛复合材料及其制备方法和应用 |
| CN103301875B (zh) * | 2013-06-14 | 2015-10-28 | 华东师范大学 | 一种mfi型硅铝分子筛/铝纤维复合材料及其制备方法和应用 |
| KR101928159B1 (ko) * | 2014-03-18 | 2018-12-11 | 매티슨 트라이-개스, 인크. | 삼염화붕소 존재 하에서 사염화규소의 환원 |
| CN104818542B (zh) * | 2015-04-13 | 2017-06-13 | 昆明理工大学 | 一种聚苯胺及其衍生物纳米纤维的制备方法 |
| CN105012991B (zh) * | 2015-07-17 | 2018-01-12 | 清华大学 | 具有无纺布纤维织物结构的抗菌‑止血材料及其制备方法 |
| US20170189859A1 (en) * | 2015-12-31 | 2017-07-06 | L'air Liquide, Societe Anonyme Pour L'etude Et I'exploitation Des Procedes Georges Claude | Zeolite enhanced carbon molecular sieve membrane |
| CN108079934B (zh) * | 2017-11-30 | 2019-02-22 | 山东大学 | 一种复合材料及其制备方法 |
| CN109847092B (zh) * | 2018-06-18 | 2020-03-31 | 浙江大学 | 一种止血复合物及其制备方法 |
-
2018
- 2018-06-18 CN CN202010803355.XA patent/CN111995798B/zh active Active
- 2018-06-18 CN CN201810625864.0A patent/CN109851858B/zh active Active
-
2019
- 2019-04-16 WO PCT/CN2019/082930 patent/WO2019242390A1/zh not_active Ceased
- 2019-04-16 JP JP2020551956A patent/JP7290341B2/ja active Active
- 2019-04-16 KR KR1020217001484A patent/KR102803584B1/ko active Active
- 2019-04-16 EP EP19822679.7A patent/EP3677631A4/en active Pending
- 2019-04-16 US US17/042,128 patent/US20210069372A1/en not_active Abandoned
- 2019-04-16 IL IL279553A patent/IL279553B2/en unknown
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6030698A (en) * | 1994-12-19 | 2000-02-29 | Lockheed Martin Energy Research Corporation | Activated carbon fiber composite material and method of making |
| US7739452B2 (en) | 2001-10-23 | 2010-06-15 | Stephen Waller Melvin | Method and apparatus for hardware enforced virtual sequentiality |
| US7390452B2 (en) | 2002-03-08 | 2008-06-24 | Board Of Regents, The University Of Texas System | Electrospinning of polymer and mesoporous composite fibers |
| US20040028900A1 (en) | 2002-08-06 | 2004-02-12 | The Board Of Regents Of The University Of Nebraska | Stable zeolite/cellulose composite materials and method of preparation |
| CN1779004A (zh) | 2004-11-26 | 2006-05-31 | 新乡化纤股份有限公司 | 一种抗菌粘胶纤维及其生产方法 |
| US8114433B2 (en) | 2006-05-26 | 2012-02-14 | Z-Medica Corporation | Clay-based hemostatic agents and devices for the delivery thereof |
| CN101541274A (zh) | 2006-10-30 | 2009-09-23 | Z-医疗公司 | 基于粘土的止血剂及其输送装置 |
| CN101687056A (zh) | 2007-03-06 | 2010-03-31 | Z-麦迪卡公司 | 基于粘土的止血剂及其传递装置 |
| CN101804327A (zh) * | 2010-04-02 | 2010-08-18 | 南京大学 | 一种成型的二氧化碳吸附材料及其制法 |
| CN104888267A (zh) | 2015-05-25 | 2015-09-09 | 浙江华峰氨纶股份有限公司 | 一种医用止血氨纶纤维织物及其制备方法 |
| CN106278368A (zh) * | 2016-08-15 | 2017-01-04 | 北京大学深圳研究生院 | 一种复合分子筛膜及其制备方法和应用 |
Non-Patent Citations (13)
| Title |
|---|
| ACS APPL MATER INTERFACES, vol. 8, no. 5, 2016, pages 3032 - 3040 |
| ACS APPL. MATER. INTERFACES, vol. 8, 2016, pages 3032 - 3040 |
| ADVANCED MATERIALS, vol. 13, no. 19, 2010, pages 1491 - 1495 |
| ANGEW. CHEM., vol. 118, no. 9, 2006, pages 3162 |
| APPLIED SURFACE SCIENCE, vol. 287, no. 18, 2013, pages 467 - 472 |
| CELLULOSE, vol. 22, no. 3, 2015, pages 1813 - 1827 |
| CHEM. MATER., vol. 22, 2010, pages 2442 |
| COLLOIDS & SURFACES B BIOINTERFACES, vol. 165, 2018, pages 199 |
| JOURNAL OF POROUS MATERIALS, vol. 3, no. 3, 1996, pages 143 - 150 |
| KEY ENGINEERING MATERIALS, vol. 317-318, 2006, pages 777 - 780 |
| MICROPOROUS & MESOPOROUS MATERIALS, vol. 145, no. 1-3, 2011, pages 51 - 58 |
| MICROPOROUS & MESOPOROUS MATERIALS, vol. 55, no. 1, 2002, pages 93 - 101 |
| See also references of EP3677631A4 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118772628A (zh) * | 2024-07-29 | 2024-10-15 | 南京跃贝新材料科技有限公司 | 汽车门框饰条表面不发白的高流动性聚酰胺复合材料的制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109851858B (zh) | 2020-12-08 |
| CN109851858A (zh) | 2019-06-07 |
| EP3677631A4 (en) | 2021-09-08 |
| EP3677631A1 (en) | 2020-07-08 |
| CN111995798B (zh) | 2022-04-15 |
| CN111995798A (zh) | 2020-11-27 |
| IL279553A (en) | 2021-01-31 |
| IL279553B2 (en) | 2024-11-01 |
| JP2021526036A (ja) | 2021-09-30 |
| KR102803584B1 (ko) | 2025-05-08 |
| IL279553B1 (en) | 2024-07-01 |
| KR20210022666A (ko) | 2021-03-03 |
| JP7290341B2 (ja) | 2023-06-13 |
| US20210069372A1 (en) | 2021-03-11 |
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