CN115302791B - A low-VOC and highly flame-retardant car trunk carpet and its processing technology - Google Patents

A low-VOC and highly flame-retardant car trunk carpet and its processing technology Download PDF

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CN115302791B
CN115302791B CN202210936311.3A CN202210936311A CN115302791B CN 115302791 B CN115302791 B CN 115302791B CN 202210936311 A CN202210936311 A CN 202210936311A CN 115302791 B CN115302791 B CN 115302791B
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flame
low
temperature
carpet
processing technology
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CN115302791A (en
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刘希浪
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Changshu New Changtai Automobile Interior Technology Co ltd
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Changshu New Changtai Automobile Interior Technology Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/482—Drying adhesives, e.g. solvent based adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/026—Chemical pre-treatments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/45—Joining of substantially the whole surface of the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N3/00—Arrangements or adaptations of other passenger fittings, not otherwise provided for
    • B60N3/04—Arrangements or adaptations of other passenger fittings, not otherwise provided for of floor mats or carpets
    • B60N3/042—Arrangements or adaptations of other passenger fittings, not otherwise provided for of floor mats or carpets of carpets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/02—Chemical treatment or coating of shaped articles made of macromolecular substances with solvents, e.g. swelling agents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/06—Coating with compositions not containing macromolecular substances
    • C08J7/065—Low-molecular-weight organic substances, e.g. absorption of additives in the surface of the article
    • 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
    • D06M11/00—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
    • D06M11/32—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 oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—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 oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/44—Oxides or hydroxides of elements of Groups 2 or 12 of the Periodic Table; Zincates; Cadmates
    • 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
    • D06M11/00—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
    • D06M11/68—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 phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof
    • D06M11/70—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 phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof with oxides of phosphorus; with hypophosphorous, phosphorous or phosphoric acids or their salts
    • 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
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/144—Alcohols; Metal alcoholates
    • D06M13/148—Polyalcohols, e.g. glycerol or glucose
    • 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
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/402—Amides imides, sulfamic acids
    • D06M13/432—Urea, thiourea or derivatives thereof, e.g. biurets; Urea-inclusion compounds; Dicyanamides; Carbodiimides; Guanidines, e.g. dicyandiamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B29L2007/002—Panels; Plates; Sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005—Body finishings
    • B29L2031/3017—Floor coverings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/06—Vegetal fibres
    • B32B2262/062—Cellulose fibres, e.g. cotton
    • B32B2262/067—Wood fibres
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • 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
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/04—Vegetal fibres
    • 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
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/30—Flame or heat resistance, fire retardancy properties

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  • Engineering & Computer Science (AREA)
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  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Emergency Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Transportation (AREA)
  • General Chemical & Material Sciences (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

本发明公开了一种低VOC高阻燃汽车行李箱地毯及其加工工艺。所述加工工艺包括以下步骤：步骤1：将聚对苯二甲酸乙二酯面毯裁断；置于氯化胆碱和草酸的低共熔溶剂中，热浸渍；转移至多巴胺溶液中，常温浸渍，得到预处理面毯；步骤2：将蜂窝状木纤维板置于阻燃剂溶液中；加入尿素，浸渍反应，洗涤干燥，得到预处理木纤维板；步骤3：将预处理木纤维板两侧贴合预处理面毯，干燥，四周包边；上表面和下表面喷涂疏水处理剂，二次干燥，压合；得到低VOC高阻燃汽车行李箱地毯。通过对聚对苯二甲酸乙二酯面毯表面预处理，使用多巴胺作为粘结剂与负载有阻燃剂的木质板材粘合，从而制备得到具有高强度的低VOC高阻燃汽车行李箱地毯。The invention discloses a low-VOC high-flame-retardant car trunk carpet and a processing technology thereof. The processing technology comprises the following steps: step 1: cutting a polyethylene terephthalate surface carpet; placing it in a low eutectic solvent of choline chloride and oxalic acid, hot-dipping; transferring it to a dopamine solution, dipping it at room temperature, and obtaining a pre-treated surface carpet; step 2: placing a honeycomb wood fiber board in a flame retardant solution; adding urea, dipping reaction, washing and drying, and obtaining a pre-treated wood fiber board; step 3: attaching the pre-treated surface carpet to both sides of the pre-treated wood fiber board, drying, and wrapping the edges around; spraying a hydrophobic treatment agent on the upper and lower surfaces, secondary drying, and pressing; obtaining a low-VOC high-flame-retardant car trunk carpet. By pre-treating the surface of the polyethylene terephthalate surface carpet, using dopamine as a binder to bond it to a wood board loaded with a flame retardant, a high-strength low-VOC high-flame-retardant car trunk carpet is prepared.

Description

Low-VOC (volatile organic compound) high-flame-retardance automobile trunk carpet and processing technology thereof
Technical Field
The invention relates to the technical field of automotive interiors, in particular to a low-VOC high-flame-retardance automotive trunk carpet and a processing technology thereof.
Background
The trunk is generally used for storing articles and corresponds to a sundry storage room of an automobile, wherein a trunk carpet is generally arranged for protecting the beauty of trunk inner decoration and preventing articles in the trunk from sliding. In recent years, with the rise of life quality, people are not limited to automobile performance, and the quality requirements of products such as automobile interiors are increased, wherein the requirements comprise low VOC, improved air environment in automobiles, hydrophobicity, self-cleaning function, replacement cleaning rate reduction and flame retardance, and property loss and casualties can be reduced when the automobiles are in fire.
The existing car trunk carpet is generally obtained by compounding fiber boards and fabric layers. Among them, polyurethane surface layer is mostly used for the surface layer, and polymer glue is usually used for the compounding process, and volatile harmful gas generally exists in polyurethane or polymer glue to affect the internal air. Polyethylene terephthalate is a nontoxic and odorless polymer, has high fatigue resistance and high abrasion resistance, and can effectively replace a polyurethane surface layer. However, pure polyethylene terephthalate has low flame retardancy and further improvement in properties is required.
Therefore, the method for preparing the low-VOC high-flame-retardance automobile trunk carpet has important significance in solving the problems.
Disclosure of Invention
The invention aims to provide a low-VOC high-flame-retardance automobile trunk carpet and a processing technology thereof, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme:
A processing technology of a low-VOC high-flame-retardance car trunk carpet comprises the following steps:
Step 1, cutting a polyethylene terephthalate surface blanket, placing the surface blanket in a eutectic solvent of choline chloride and oxalic acid, hot dipping, transferring the surface blanket into a dopamine solution, and dipping at normal temperature to obtain a pretreated surface blanket;
step 2, placing the honeycomb wood fiber board in a flame retardant solution, adding urea, carrying out an impregnation reaction, washing and drying to obtain a pretreated wood fiber board;
and 3, attaching the pretreated wood fiber board on two sides of the pretreated wood fiber board, drying, wrapping the periphery, spraying a water repellent agent on the upper surface and the lower surface, drying for the second time, and pressing to obtain the low-VOC high-flame-retardance automobile trunk carpet.
More optimally, in the step 1, the temperature is 60-65 ℃ in the hot dipping process for 2-3 hours, the temperature is 20-25 ℃ in the normal temperature dipping process for 2-3 hours, and the temperature is 100-110 ℃ in the dipping reaction process for 2-3 hours.
More preferably, the impregnation ratio of the polyethylene terephthalate blanket to the eutectic solvent is 1 (20-25).
More preferably, in the dopamine solution, the solvent is Tris buffer solution with pH=7.5-7.8, the concentration of the dopamine solution is 1-2 mol/L, and the impregnation ratio of the polyethylene terephthalate blanket to the dopamine solution is 1 (10-15).
More optimally, in the step 2, the preparation method of the flame retardant solution comprises the steps of dispersing sorbitol and nano zinc oxide in N, N-dimethylformamide, setting the temperature to be 118-125 ℃, adding phosphoric acid, setting the temperature to be 145-155 ℃ and reacting for 1.5-2 hours to obtain the flame retardant solution.
More optimally, the mass ratio of the sorbitol to the nano zinc oxide to the phosphoric acid to the urea is 1:0.5 (4-5) to 2-3.
More optimally, in the step 3, the temperature is 70-75 ℃ in the secondary drying process, the vacuum pressure is applied to 0.1MPa, the drying time is 3-4 hours, the pressure is 0.8-1N/cm 2 in the pressing process, the temperature is 80-90 ℃, and the pressing time is 30-60 seconds;
more optimally, the water repellent agent takes water as a solvent and comprises 0.8-1.0 mol/L ferric sulfate, 160-180 mL/L hexadecyltrimethoxysilane and 1.8-2 mol/L sodium borate.
More optimally, the single-sided spraying amount of the water repellent agent is 2-2.5L/m 2.
More optimally, the low-VOC high-flame-retardant automobile trunk carpet is prepared by the processing technology of the low-VOC high-flame-retardant automobile trunk carpet.
According to the technical scheme, the polar surface is generated by surface treatment of the polyethylene terephthalate surface carpet, dopamine is used as a binder to be bonded with a wood board loaded with a flame retardant, and finally, the surface of the hydrophobic agent is used for hydrophobing and interface bonding is enhanced at the same time, so that the automobile trunk carpet with high strength, low VOC and high flame retardance is prepared.
(1) In the scheme, the polyethylene terephthalate surface blanket is subjected to impregnation treatment by using a eutectic solvent formed by choline chloride and oxalic acid, so that the polyethylene terephthalate surface blanket swells, the surface is subjected to chemical action, the surface roughness and polarity are increased, the hydrophobic surface is converted into hydrophilicity, and then the hydrophilic surface is adsorbed on the surface of the polyethylene terephthalate surface blanket to serve as a binder through the impregnation process, wherein dopamine is not dried after being impregnated, and is dried and bonded after being compounded with wood fiber boards. The polyethylene terephthalate face blanket increases interfacial adhesion due to polarity change, and meanwhile, dopamine is an environment-friendly substance which is used as an interfacial adhesive and has low VOC.
(2) In the scheme, the honeycomb-shaped wood cellulose board is used as the middle layer, and the honeycomb holes of the honeycomb-shaped wood cellulose board effectively achieve the effects of damping and reducing noise. The flame retardant is firstly placed in a flame retardant solution, a P-O-C bond is formed between the flame retardant solution and the hydroxyl of the wood fiber board, the flame retardant is effectively loaded, and then an ionic bond is formed between an anion of phosphorous acid in the flame retardant and an ion of ammonium radical in urea under the action of ions, so that the flame retardance and the adhesiveness are synergistically improved.
The three-phase flame retardant is formed by esterifying sorbitol and phosphoric acid, wherein nano zinc oxide is added in the process, and hydrogen bond acting force or esterification reaction is generated between the nano zinc oxide and two substances by utilizing hydroxyl on the surface of the nano zinc oxide, so that the three-phase flame retardant is formed, and the flame retardance is further improved. Meanwhile, the nano zinc oxide can increase the mechanical property of a bonding interface, and generally has the function of an odor absorbent.
(3) In order to promote the interfacial adhesion of the polyethylene terephthalate carpet, the surface modification treatment was performed in step 1, but if the surface of the automobile luggage carpet had hydrophilicity, it could not have waterproof performance, and the practicality was low. Therefore, in the scheme, the hydrophobic treatment agent is sprayed, and the polydopamine formed by self-polymerization is chelated with iron ions, and the surface is grafted with the low-surface-energy substance hexadecyltrimethoxysilane, so that the surface generates a super-hydrophobic structure and has a self-cleaning effect.
In addition, after the hydrophobic treatment agent is sprayed, the hydrophobic treatment agent is dried under a certain pressure, so that the sprayed hydrophobic treatment agent can act on a bonding interface, the crosslinking of a dopamine bonding layer is promoted, and the bonding interface performance is improved.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The preparation method of the eutectic solvent comprises the steps of mixing choline chloride and oxalic acid according to a molar ratio of 1:2, and stirring at 120 ℃ until the mixture is transparent to obtain the eutectic solvent.
Example 1:
A processing technology of a low-VOC high-flame-retardance car trunk carpet comprises the following steps:
Cutting a polyethylene terephthalate surface blanket, firstly placing the blanket in a eutectic solvent of choline chloride and oxalic acid, setting the soaking ratio to be 1:25, carrying out hot soaking for 2.5 hours at the temperature of 65 ℃, transferring the blanket into a dopamine solution (Tris buffer solution with the pH value of 7.5 and the concentration of the dopamine solution of 1.5 mol/L), setting the soaking ratio to be 1:12, carrying out soaking treatment for 3 hours at the temperature of 25 ℃, and taking out the blanket to obtain the pretreated surface blanket.
The preparation method of the flame retardant solution comprises the steps of weighing substances according to the mass ratio of sorbitol to nano zinc oxide to phosphoric acid to urea of 1:0.5:4.5:2.5, dispersing the sorbitol to the nano zinc oxide in N, N-dimethylformamide, setting the temperature to 120 ℃, adding phosphoric acid, setting the temperature to 150 ℃, reacting for 2 hours to obtain the flame retardant solution, placing the honeycomb wood fiber board in the flame retardant solution, setting the temperature to 105 ℃, adding urea, carrying out dipping reaction for 2 hours, washing and drying to obtain the pretreated wood fiber board;
And 3, attaching the pretreated wood fiber board on two sides of the pretreated wood fiber board, drying for 2.5 hours at the temperature of 80 ℃ for four edges, spraying a hydrophobic treatment agent on the upper surface and the lower surface at the single-sided spraying amount of 2L/m 2, pressurizing to 0.1MPa at the temperature of 72 ℃, drying for 3.5 hours for the second time, setting the pressure of 0.8N/cm 2 at the temperature of 85 ℃, and performing pressing for 45 seconds to obtain the low-VOC high-flame-retardant automobile trunk carpet.
The water repellent agent takes water as a solvent and comprises 1.0mol/L ferric sulfate, 180mL/L hexadecyltrimethoxysilane and 1.8mol/L sodium borate.
Example 2:
A processing technology of a low-VOC high-flame-retardance car trunk carpet comprises the following steps:
Cutting a polyethylene terephthalate surface blanket, firstly placing the blanket in a eutectic solvent of choline chloride and oxalic acid, setting the soaking ratio to be 1:20, hot soaking for 2.5 hours at the temperature of 60 ℃, transferring the blanket into a dopamine solution (Tris buffer solution with the pH value of 7.5 and the concentration of the dopamine solution of 1 mol/L), setting the soaking ratio to be 1:10, soaking for 2 hours at the temperature of 20 ℃, and taking out the blanket to obtain the pretreated surface blanket.
The preparation method of the flame retardant solution comprises the steps of weighing substances according to the mass ratio of sorbitol to nano zinc oxide to phosphoric acid to urea of 1:0.5:4:2, dispersing the sorbitol to the nano zinc oxide in N, N-dimethylformamide, setting the temperature to 118 ℃, adding phosphoric acid, setting the temperature to 150 ℃, reacting for 1.5 hours to obtain the flame retardant solution, placing the honeycomb wood fiber board in the flame retardant solution, setting the temperature to 100 ℃, adding urea, carrying out dipping reaction for 3 hours, washing and drying to obtain the pretreated wood fiber board;
And 3, attaching the pretreated wood fiber board on two sides of the pretreated wood fiber board, drying for 2 hours at the temperature of 80 ℃, wrapping the periphery, spraying a hydrophobic treatment agent on the upper surface and the lower surface at the single-side spraying amount of 2L/m 2, pressurizing to 0.1MPa at the temperature of 70 ℃, drying for 3 hours twice, setting the pressure of 0.8N/cm 2, setting the temperature of 90 ℃, and performing lamination for 30 seconds to obtain the low-VOC high-flame-retardant automobile trunk carpet.
The water repellent agent takes water as a solvent and comprises 0.8mol/L ferric sulfate, 160mL/L hexadecyltrimethoxysilane and 1.8mol/L sodium borate.
Example 3:
A processing technology of a low-VOC high-flame-retardance car trunk carpet comprises the following steps:
Cutting a polyethylene terephthalate surface blanket, firstly placing the polyethylene terephthalate surface blanket in a eutectic solvent of choline chloride and oxalic acid, setting the soaking ratio to be 1:25, hot soaking for 3 hours at the temperature of 60-65 ℃, transferring the polyethylene terephthalate surface blanket into a dopamine solution (Tris buffer solution with the pH value of 7.8 and the concentration of the dopamine solution of 1-2 mol/L), setting the soaking ratio to be 1:15, soaking for 3 hours at the temperature of 25 ℃, and taking out the polyethylene terephthalate surface blanket to obtain the pretreated surface blanket.
The preparation method of the flame retardant solution comprises the steps of weighing substances according to the mass ratio of sorbitol to nano zinc oxide to phosphoric acid to urea of 1:0.5:5:3, dispersing the sorbitol to nano zinc oxide in N, N-dimethylformamide, setting the temperature to 125 ℃, adding phosphoric acid, setting the temperature to 155 ℃, reacting for 2 hours to obtain the flame retardant solution, placing the honeycomb wood fiber board in the flame retardant solution, setting the temperature to 110 ℃, adding urea, carrying out impregnation reaction for 2 hours, washing and drying to obtain the pretreated wood fiber board;
And 3, attaching the pretreated wood fiber board on two sides of the pretreated wood fiber board, drying for 3 hours at 80 ℃, wrapping the periphery, spraying a hydrophobic treatment agent on the upper surface and the lower surface at the single-sided spraying amount of 2.5L/m 2, pressurizing to 0.1MPa at 75 ℃, drying for 4 hours twice, setting the pressure of 1N/cm 2 at 80 ℃, and obtaining the low-VOC high-flame-retardant automobile trunk carpet at the pressing time of 60 seconds.
The water repellent agent takes water as a solvent and comprises 1.0mol/L ferric sulfate, 180mL/L hexadecyltrimethoxysilane and 2mol/L sodium borate.
Comparative example 1:
A processing technology of a low-VOC high-flame-retardance car trunk carpet comprises the following steps:
step 1, cutting a polyethylene terephthalate surface blanket, carrying out plasma surface treatment, placing the blanket in a dopamine solution (a Tris buffer solution with a pH value of 7.5 as a solvent and a concentration of 1.5 mol/L) with an impregnation ratio of 1:12, carrying out impregnation treatment for 3 hours at a temperature of 25 ℃, and taking out to obtain the pretreated surface blanket.
The preparation method of the flame retardant solution comprises the steps of weighing substances according to the mass ratio of sorbitol to nano zinc oxide to phosphoric acid to urea of 1:0.5:4.5:2.5, dispersing the sorbitol to the nano zinc oxide in N, N-dimethylformamide, setting the temperature to 120 ℃, adding phosphoric acid, setting the temperature to 150 ℃, reacting for 2 hours to obtain the flame retardant solution, placing the honeycomb wood fiber board in the flame retardant solution, setting the temperature to 105 ℃, adding urea, carrying out dipping reaction for 2 hours, washing and drying to obtain the pretreated wood fiber board;
And 3, attaching the pretreated wood fiber board on two sides of the pretreated wood fiber board, drying for 2.5 hours at the temperature of 80 ℃ for four edges, spraying a hydrophobic treatment agent on the upper surface and the lower surface at the single-sided spraying amount of 2L/m 2, pressurizing to 0.1MPa at the temperature of 72 ℃, drying for 3.5 hours for the second time, setting the pressure of 0.8N/cm 2 at the temperature of 85 ℃, and performing pressing for 45 seconds to obtain the low-VOC high-flame-retardant automobile trunk carpet.
The water repellent agent takes water as a solvent and comprises 1.0mol/L ferric sulfate, 180mL/L hexadecyltrimethoxysilane and 1.8mol/L sodium borate.
Comparative example 2:
A processing technology of a low-VOC high-flame-retardance car trunk carpet comprises the following steps:
Cutting a polyethylene terephthalate surface blanket, firstly placing the blanket in a eutectic solvent of choline chloride and oxalic acid, setting the soaking ratio to be 1:25, carrying out hot soaking for 2.5 hours at the temperature of 65 ℃, transferring the blanket into a dopamine solution (Tris buffer solution with the pH value of 7.5 and the concentration of the dopamine solution of 1.5 mol/L), setting the soaking ratio to be 1:12, carrying out soaking treatment for 3 hours at the temperature of 25 ℃, and taking out the blanket to obtain the pretreated surface blanket.
The preparation method of the flame retardant solution comprises the steps of weighing substances according to the mass ratio of sorbitol to phosphoric acid to urea of 1:4.5:2.5, dispersing sorbitol in N, N-dimethylformamide, setting the temperature to 120 ℃, adding phosphoric acid, setting the temperature to 150 ℃, reacting for 2 hours to obtain the flame retardant solution, placing honeycomb wood fiber board in the flame retardant solution, setting the temperature to 105 ℃, adding urea, carrying out dipping reaction for 2 hours, washing and drying to obtain the pretreated wood fiber board;
And 3, attaching the pretreated wood fiber board on two sides of the pretreated wood fiber board, drying for 2.5 hours at the temperature of 80 ℃ for four edges, spraying a hydrophobic treatment agent on the upper surface and the lower surface at the single-sided spraying amount of 2L/m 2, pressurizing to 0.1MPa at the temperature of 72 ℃, drying for 3.5 hours for the second time, setting the pressure of 0.8N/cm 2 at the temperature of 85 ℃, and performing pressing for 45 seconds to obtain the low-VOC high-flame-retardant automobile trunk carpet.
The water repellent agent takes water as a solvent and comprises 1.0mol/L ferric sulfate, 180mL/L hexadecyltrimethoxysilane and 1.8mol/L sodium borate.
Comparative example 3:
A processing technology of a low-VOC high-flame-retardance car trunk carpet comprises the following steps:
Cutting a polyethylene terephthalate surface blanket, firstly placing the blanket in a eutectic solvent of choline chloride and oxalic acid, setting the soaking ratio to be 1:25, carrying out hot soaking for 2.5 hours at the temperature of 65 ℃, transferring the blanket into a dopamine solution (Tris buffer solution with the pH value of 7.5 and the concentration of the dopamine solution of 1.5 mol/L), setting the soaking ratio to be 1:12, carrying out soaking treatment for 3 hours at the temperature of 25 ℃, and taking out the blanket to obtain the pretreated surface blanket.
The preparation method of the flame retardant solution comprises the steps of weighing substances according to the mass ratio of sorbitol to nano zinc oxide to phosphoric acid to urea of 1:0.5:4.5:2.5, dispersing the sorbitol to the nano zinc oxide in N, N-dimethylformamide, setting the temperature to 120 ℃, adding phosphoric acid, setting the temperature to 150 ℃, reacting for 2 hours to obtain the flame retardant solution, placing the honeycomb wood fiber board in the flame retardant solution, oscillating and soaking for 2 hours, washing and drying to obtain the pretreated wood fiber board;
And 3, attaching the pretreated wood fiber board on two sides of the pretreated wood fiber board, drying for 2.5 hours at the temperature of 80 ℃ for four edges, spraying a hydrophobic treatment agent on the upper surface and the lower surface at the single-sided spraying amount of 2L/m 2, pressurizing to 0.1MPa at the temperature of 72 ℃, drying for 3.5 hours for the second time, setting the pressure of 0.8N/cm 2 at the temperature of 85 ℃, and performing pressing for 45 seconds to obtain the low-VOC high-flame-retardant automobile trunk carpet.
The water repellent agent takes water as a solvent and comprises 1.0mol/L ferric sulfate, 180mL/L hexadecyltrimethoxysilane and 1.8mol/L sodium borate.
Comparative example 4:
A processing technology of a low-VOC high-flame-retardance car trunk carpet comprises the following steps:
Cutting a polyethylene terephthalate surface blanket, firstly placing the blanket in a eutectic solvent of choline chloride and oxalic acid, setting the soaking ratio to be 1:25, carrying out hot soaking for 2.5 hours at the temperature of 65 ℃, transferring the blanket into a dopamine solution (Tris buffer solution with the pH value of 7.5 and the concentration of the dopamine solution of 1.5 mol/L), setting the soaking ratio to be 1:12, carrying out soaking treatment for 3 hours at the temperature of 25 ℃, and taking out the blanket to obtain the pretreated surface blanket. Polyethylene terephthalate face blanket and eutectic solvent).
The preparation method of the flame retardant solution comprises the steps of weighing substances according to the mass ratio of nano zinc oxide to phosphoric acid to urea of 0.5:4.5:2.5, dispersing the nano zinc oxide in N, N-dimethylformamide, setting the temperature to 120 ℃, adding phosphoric acid, setting the temperature to 150 ℃, reacting for 2 hours to obtain the flame retardant solution, placing the honeycomb wood fiber board in the flame retardant solution, setting the temperature to 105 ℃, adding urea, carrying out impregnation reaction for 2 hours, washing and drying to obtain the pretreated wood fiber board;
And 3, attaching the pretreated wood fiber board on two sides of the pretreated wood fiber board, drying for 2.5 hours at the temperature of 80 ℃ for four edges, spraying a hydrophobic treatment agent on the upper surface and the lower surface at the single-sided spraying amount of 2L/m 2, pressurizing to 0.1MPa at the temperature of 72 ℃, drying for 3.5 hours for the second time, setting the pressure of 0.8N/cm 2 at the temperature of 85 ℃, and performing pressing for 45 seconds to obtain the low-VOC high-flame-retardant automobile trunk carpet.
The water repellent agent takes water as a solvent and comprises 1.0mol/L ferric sulfate, 180mL/L hexadecyltrimethoxysilane and 1.8mol/L sodium borate.
Comparative example 5:
A processing technology of a low-VOC high-flame-retardance car trunk carpet comprises the following steps:
Cutting a polyethylene terephthalate surface blanket, firstly placing the blanket in a eutectic solvent of choline chloride and oxalic acid, setting the soaking ratio to be 1:25, carrying out hot soaking for 2.5 hours at the temperature of 65 ℃, transferring the blanket into a dopamine solution (Tris buffer solution with the pH value of 7.5 and the concentration of the dopamine solution of 1.5 mol/L), setting the soaking ratio to be 1:12, carrying out soaking treatment for 3 hours at the temperature of 25 ℃, and taking out the blanket to obtain the pretreated surface blanket. Polyethylene terephthalate face blanket and eutectic solvent).
The preparation method of the flame retardant solution comprises the steps of weighing substances according to the mass ratio of sorbitol to nano zinc oxide to phosphoric acid to urea of 1:0.5:4.5:2.5, dispersing the sorbitol to the nano zinc oxide in N, N-dimethylformamide, setting the temperature to 120 ℃, adding phosphoric acid, setting the temperature to 150 ℃, reacting for 2 hours to obtain the flame retardant solution, placing the honeycomb wood fiber board in the flame retardant solution, setting the temperature to 105 ℃, adding urea, carrying out dipping reaction for 2 hours, washing and drying to obtain the pretreated wood fiber board;
And 3, attaching the pretreated wood fiber board on two sides of the pretreated wood fiber board, drying for 2.5 hours at the temperature of 80 ℃ for four edges, spraying a hydrophobic treatment agent on the upper surface and the lower surface at the single-sided spraying amount of 2L/m 2, pressurizing to 0.1MPa at the temperature of 72 ℃, drying for 3.5 hours for the second time, setting the pressure of 0.8N/cm 2 at the temperature of 85 ℃, and performing pressing for 45 seconds to obtain the low-VOC high-flame-retardant automobile trunk carpet.
The water repellent agent takes water as a solvent and comprises 180mL/L hexadecyltrimethoxysilane and 1.8mol/L sodium borate.
Experiment 1 the low VOC high flame retardant car trunk carpets prepared in examples and comparative examples were subjected to mechanical strength and flame retardancy tests, and the data obtained are shown below:
Examples Tensile strength of LOI Examples Tensile strength of LOI
Example 1 545N 36.1 Comparative example 2 525N 34.2
Example 2 540N 36.0 Comparative example 3 578N 31.1
Example 3 542N 36.0 Comparative example 4 475N 29.8
Comparative example 1 514N 35.4 Comparative example 5 528N 35.1
Conclusion from the data in the tables, it is clear that the car trunk carpets prepared in examples 1 to 3 have high flame retardance and good mechanical properties. Comparing example 1 with comparative examples 1 to 5, it is understood that in comparative example 1, the adhesive strength is lowered due to the plasma modification, so that the mechanical properties are lowered, and the flame retardant properties are slightly lowered. In comparative example 2, the interface rigidity of the adhesive layer is lowered due to the absence of added nano zinc oxide, and at the same time, the adhesive layer has flame retardancy, and the flame retardancy is lowered due to the absence of added nano zinc oxide. In comparative example 3, urea treatment was not used, so that the decrease in flame retardancy was remarkable, but the mechanical properties were increased because the alkali treatment reacted strongly with phosphoric acid, and there was some damage to the lignin sheet. In comparative example 4, the decrease in flame retardancy and mechanical properties was remarkable because sorbitol was not added, since sorbitol can effectively increase the synergistic flame retardancy of phosphoric acid-urea while buffering the damage to lignin. In comparative example 5, the crosslinking of polydopamine was decreased due to the absence of added ferric sulfate, and the secondary bonding interface enhancement was not performed, resulting in a decrease in mechanical properties.
Experiment 2 the low VOC high flame retardant car trunk carpet prepared in example 1 was subjected to surface hydrophobicity test and VOC gas rating.
Conclusion the surface contact angle of water was 152 deg., and the VOC gas rating was rated 0 (odorless).
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present invention, and the present invention is not limited thereto, but may be modified or substituted for some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A processing technology of a low-VOC high-flame-retardance automobile trunk carpet is characterized by comprising the following steps of:
Step 1, cutting a polyethylene terephthalate surface blanket, placing the surface blanket in a eutectic solvent of choline chloride and oxalic acid, hot dipping, transferring the surface blanket into a dopamine solution, and dipping at normal temperature to obtain a pretreated surface blanket;
step 2, placing the honeycomb wood fiber board in a flame retardant solution, adding urea, carrying out an impregnation reaction, washing and drying to obtain a pretreated wood fiber board;
and 3, attaching the pretreated wood fiber board on two sides of the pretreated wood fiber board, drying, wrapping the periphery, spraying a water repellent agent on the upper surface and the lower surface, drying for the second time, and pressing to obtain the low-VOC high-flame-retardance automobile trunk carpet.
2. The processing technology of the low-VOC high-flame-retardance automobile trunk carpet is characterized in that in the step 1, the temperature is 60-65 ℃ in the hot dipping process, the time is 2-3 hours, the temperature is 20-25 ℃ in the normal-temperature dipping process, the time is 2-3 hours, and the temperature is 100-110 ℃ in the dipping reaction process, and the reaction time is 2-3 hours.
3. The processing technology of the low-VOC high-flame-retardance automobile trunk carpet of claim 1, wherein the impregnation ratio of the polyethylene terephthalate surface carpet to the eutectic solvent is 1 (20-25).
4. The processing technology of the low-VOC high-flame-retardance automobile trunk carpet is characterized in that in the dopamine solution, a solvent is Tris buffer solution with pH value of 7.5-7.8, the concentration of the dopamine solution is 1-2 mol/L, and the impregnation ratio of the polyethylene terephthalate face carpet to the dopamine solution is 1 (10-15).
5. The processing technology of the low-VOC high-flame-retardance automobile trunk carpet is characterized in that in the step 2, the preparation method of the flame retardant solution comprises the steps of dispersing sorbitol and nano zinc oxide in N, N-dimethylformamide, setting the temperature to be 118-125 ℃, adding phosphoric acid, setting the temperature to be 145-155 ℃ and reacting for 1.5-2 hours to obtain the flame retardant solution.
6. The processing technology of the low-VOC high-flame-retardant automobile trunk carpet is characterized in that the mass ratio of sorbitol to nano zinc oxide to phosphoric acid to urea is 1:0.5:4-5:2-3.
7. The processing technology of the low-VOC high-flame-retardance automobile trunk carpet is characterized in that in the step 3, in the secondary drying process, the temperature is 70-75 ℃, the drying time is 3-4 hours after vacuum pressurization to 0.1MPa, the pressure is 0.8-1N/cm 2, the temperature is 80-90 ℃, and the pressing time is 30-60 seconds.
8. The processing technology of the low-VOC high-flame-retardant automobile trunk carpet of claim 7, wherein the water-repellent treatment agent is water as a solvent and comprises 0.8-1.0 mol/L ferric sulfate, 160-180 mL/L hexadecyl trimethoxy silane and 1.8-2 mol/L sodium borate.
9. The processing technology of the low-VOC high-flame-retardance automobile trunk carpet of claim 1 is characterized in that single-sided spraying amount of the water repellent agent is 2-2.5L/m 2.
10. The low-VOC high-flame-retardant automotive trunk carpet according to any one of claims 1 to 9.
CN202210936311.3A 2022-08-05 2022-08-05 A low-VOC and highly flame-retardant car trunk carpet and its processing technology Active CN115302791B (en)

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KR100693075B1 (en) * 2006-03-10 2007-03-14 (주) 비앤비 Flame Retardant Polyester Fiber Plate
CN102815075B (en) * 2012-08-23 2015-04-08 无锡吉兴汽车部件有限公司 Manufacturing process for low VOC (volatile organic compound) vehicle spare tire cover plate
CN104192042B (en) * 2014-08-22 2016-08-24 无锡吉兴汽车部件有限公司 A kind of lightweight car acpistocs carpet and production method thereof
CN113978053B (en) * 2021-12-14 2023-07-25 常熟新常泰汽车内饰科技有限公司 Environment-friendly wear-resistant automobile carpet and preparation method thereof

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JP2003040018A (en) * 2001-05-24 2003-02-13 Japan Vilene Co Ltd Automotive floor mat
CN111231471A (en) * 2018-11-29 2020-06-05 铠龙东方汽车有限公司 Novel composite material lightweight automotive carpet

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