CN114737388A - Waterproof polyethylene yarn and preparation method thereof - Google Patents
Waterproof polyethylene yarn and preparation method thereof Download PDFInfo
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- CN114737388A CN114737388A CN202210272120.1A CN202210272120A CN114737388A CN 114737388 A CN114737388 A CN 114737388A CN 202210272120 A CN202210272120 A CN 202210272120A CN 114737388 A CN114737388 A CN 114737388A
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- -1 polyethylene Polymers 0.000 title claims abstract description 67
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 40
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000000835 fiber Substances 0.000 claims abstract description 109
- 239000002048 multi walled nanotube Substances 0.000 claims abstract description 84
- 229920000728 polyester Polymers 0.000 claims abstract description 56
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims abstract description 52
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims abstract description 52
- 239000002131 composite material Substances 0.000 claims abstract description 39
- 238000001035 drying Methods 0.000 claims abstract description 36
- 238000005406 washing Methods 0.000 claims abstract description 36
- 239000006185 dispersion Substances 0.000 claims abstract description 30
- 238000003756 stirring Methods 0.000 claims abstract description 28
- 239000000203 mixture Substances 0.000 claims abstract description 27
- 238000002156 mixing Methods 0.000 claims abstract description 24
- 238000009987 spinning Methods 0.000 claims abstract description 24
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229920002121 Hydroxyl-terminated polybutadiene Polymers 0.000 claims abstract description 22
- 239000004576 sand Substances 0.000 claims abstract description 22
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 21
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229920000742 Cotton Polymers 0.000 claims abstract description 11
- 238000007664 blowing Methods 0.000 claims abstract description 11
- 238000009960 carding Methods 0.000 claims abstract description 11
- 238000001891 gel spinning Methods 0.000 claims abstract description 11
- 239000003208 petroleum Substances 0.000 claims abstract description 11
- 230000008961 swelling Effects 0.000 claims abstract description 11
- 238000009832 plasma treatment Methods 0.000 claims abstract description 10
- 238000007598 dipping method Methods 0.000 claims abstract description 9
- 239000000243 solution Substances 0.000 claims description 65
- TUSDEZXZIZRFGC-UHFFFAOYSA-N 1-O-galloyl-3,6-(R)-HHDP-beta-D-glucose Natural products OC1C(O2)COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC1C(O)C2OC(=O)C1=CC(O)=C(O)C(O)=C1 TUSDEZXZIZRFGC-UHFFFAOYSA-N 0.000 claims description 52
- 239000001263 FEMA 3042 Substances 0.000 claims description 52
- LRBQNJMCXXYXIU-PPKXGCFTSA-N Penta-digallate-beta-D-glucose Natural products OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-PPKXGCFTSA-N 0.000 claims description 52
- 229940033123 tannic acid Drugs 0.000 claims description 52
- 235000015523 tannic acid Nutrition 0.000 claims description 52
- 229920002258 tannic acid Polymers 0.000 claims description 52
- LRBQNJMCXXYXIU-NRMVVENXSA-N tannic acid Chemical compound OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-NRMVVENXSA-N 0.000 claims description 50
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 28
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 24
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 24
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 14
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 14
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 14
- 239000007983 Tris buffer Substances 0.000 claims description 11
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 claims description 11
- YMWUJEATGCHHMB-UHFFFAOYSA-N dichloromethane Substances ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000005062 Polybutadiene Substances 0.000 claims description 5
- 229920002857 polybutadiene Polymers 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 3
- 239000003963 antioxidant agent Substances 0.000 claims description 2
- 230000003078 antioxidant effect Effects 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 14
- 238000005303 weighing Methods 0.000 description 13
- KEQFTVQCIQJIQW-UHFFFAOYSA-N N-Phenyl-2-naphthylamine Chemical compound C=1C=C2C=CC=CC2=CC=1NC1=CC=CC=C1 KEQFTVQCIQJIQW-UHFFFAOYSA-N 0.000 description 12
- 238000005299 abrasion Methods 0.000 description 7
- 230000001965 increasing effect Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 230000003746 surface roughness Effects 0.000 description 5
- 239000002657 fibrous material Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000004753 textile Substances 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920013639 polyalphaolefin Polymers 0.000 description 2
- 230000004224 protection Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 238000006845 Michael addition reaction Methods 0.000 description 1
- 239000002262 Schiff base Substances 0.000 description 1
- 150000004753 Schiff bases Chemical class 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229920004933 Terylene® Polymers 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000006266 etherification reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002071 nanotube Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 150000004053 quinones Chemical class 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001864 tannin Polymers 0.000 description 1
- 235000018553 tannin Nutrition 0.000 description 1
- 239000001648 tannin Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- D06M11/73—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 carbon or compounds thereof
- D06M11/74—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 carbon or compounds thereof with carbon or graphite; with carbides; with graphitic acids or their salts
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/09—Addition of substances to the spinning solution or to the melt for making electroconductive or anti-static filaments
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
- D02G3/045—Blended or other yarns or threads containing components made from different materials all components being made from artificial or synthetic material
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
- D02G3/328—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic containing elastane
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
-
- 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
- D06M13/11—Compounds containing epoxy groups or precursors thereof
-
- 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
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
- D06M15/6436—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain containing amino groups
-
- 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
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/20—Polyalkenes, polymers or copolymers of compounds with alkenyl groups bonded to aromatic groups
-
- 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
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
-
- 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
- D06M2200/10—Repellency against liquids
- D06M2200/12—Hydrophobic properties
-
- 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
- D06M2200/35—Abrasion, pilling or fibrillation resistance
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a waterproof polyethylene yarn and a preparation method thereof. The preparation method comprises the following steps: s1: modifying the surface of hydroxyl-terminated polybutadiene with a hydroxylated multiwalled carbon nanotube to obtain a carbon nanotube composite; mixing the fiber with ultrahigh molecular weight polyethylene, placing the mixture in petroleum ether for swelling to obtain a spinning solution, and performing gel spinning and super-drawing to obtain ultrahigh molecular weight polyethylene fiber; s2: performing plasma treatment on the surface of the polyester fiber, placing the polyester fiber in a hydroxylated multi-walled carbon nanotube dispersion liquid, stirring and dipping, washing and drying to obtain modified polyester fiber; s3: mixing the ultra-high molecular weight polyethylene fiber and the modified polyester fiber, and performing blowing, cotton carding, drawing, roving and spinning processes to obtain mixed fine sand; putting two strands of the same mixed fine sand into a doubling and twisting combined machine, and doubling and twisting; obtaining a composite yarn; s4: and (3) immersing the composite yarn in aminopropyl isobutyl silsesquioxane solution, stirring, immersing, washing and drying to obtain the waterproof polyethylene yarn.
Description
Technical Field
The invention relates to the technical field of polyethylene yarns, in particular to a waterproof polyethylene yarn and a preparation method thereof.
Background
The textile industry is the traditional dominant industry in China, and usually the production of middle and low grade products with low added value and high homogenization degree is taken as the main point. However, in recent years, the change of economic patterns forces the traditional textile industry to go a new spinning transformation path. The research on the aspects of raw material processing and the like is increased, so that high-grade textiles with high production added value are expected to be produced, and the application range of the existing textiles is expanded.
On the other hand, lightweight materials are becoming an important direction for innovative development in the fields of automobiles, ships, aerospace, civil engineering and the like. The light-weight nonmetal fiber materials such as polyethylene, aramid fiber and other fiber materials also become the focus of attention, wherein the fiber materials are used for preparing yarns and then preparing fiber ropes, so that the traditional steel wire ropes can be effectively replaced, the operation capacity is effectively improved, and the transportation cost is reduced.
Among fiber materials, the ultra-high molecular weight polyethylene fiber has the properties of high strength, high modulus, chemical resistance, ultraviolet resistance and the like, and is widely applied to operations such as navigation cables, bulletproof fabrics, fish catching trawls, engineering hoisting and the like. But the heat resistance is poor, and the finished product of the fiber rope is used for high gravity operation, and heat accumulation is generated in the abrasion process, so that the mechanical property of the fiber rope is influenced. Meanwhile, the creep resistance of the alloy is poor, so that the application of the alloy in high-end fields is limited. Therefore, there is a need to solve the problems of thermal performance, wear performance, creep resistance of semi-finished yarns made from ultra-high molecular weight polyethylene fibers. In the prior art, the fiber is usually blended with other fibers to optimize and complement defects; fillers can be added into the ultra-high molecular weight polyethylene fibers to solve the problems of abrasion and the like; however, the addition of fillers has affinity problems, poor dispersibility and ultimately affects the material itself; on the other hand, the surface of the ultra-high molecular weight polyethylene fiber is too smooth, the interaction force is weak when the ultra-high molecular weight polyethylene fiber is blended with other fibers, and static electricity is easily generated in the blending process to influence the quality of the yarn.
In conclusion, the waterproof polyethylene yarn is of great significance in solving the problems.
Disclosure of Invention
The invention aims to provide a waterproof polyethylene yarn and a preparation method 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 preparation method of waterproof polyethylene yarns comprises the following steps:
s1: modifying the surface of hydroxyl-terminated polybutadiene with a hydroxylated multiwalled carbon nanotube to obtain a carbon nanotube composite; mixing the fiber with ultrahigh molecular weight polyethylene, placing the mixture in petroleum ether for swelling to obtain a spinning solution, and performing gel spinning and super-drawing to obtain ultrahigh molecular weight polyethylene fiber;
s2: carrying out plasma treatment on the surface of the polyester fiber, placing the polyester fiber in a hydroxylated multi-walled carbon nanotube dispersion liquid, stirring, dipping, washing and drying to obtain modified polyester fiber;
s3: mixing the ultra-high molecular weight polyethylene fiber and the modified polyester fiber, and performing blowing, cotton carding, drawing, roving and spinning processes to obtain mixed fine sand; putting two strands of the same mixed fine sand into a doubling and twisting combined machine, and doubling and twisting; obtaining a composite yarn;
s4: and (3) immersing the composite yarn in aminopropyl isobutyl silsesquioxane solution, stirring, immersing, washing and drying to obtain the waterproof polyethylene yarn.
Preferably, the raw material of the ultra-high molecular weight polyethylene fiber comprises the following components: 80-85 parts of ultrahigh molecular weight polyethylene, 12-16 parts of hydroxyl-terminated polybutadiene and 3-4 parts of hydroxylated multi-wall carbon nanotubes in parts by weight.
Preferably, the preparation method of the carbon nanotube composite comprises the following steps: placing the dried hydroxylated multi-walled carbon nanotube into a reaction bottle containing normal hexane, uniformly dispersing, and sequentially adding hydroxyl polybutadiene, an antioxidant and potassium carbonate while stirring; and (3) reacting for 12-14 hours at the temperature of 65-75 ℃, washing with methanol, and drying to obtain the carbon nano tube compound.
Preferably, the preparation method of the hydroxylated multi-walled carbon nanotube dispersion liquid comprises the following steps: dispersing tannic acid in a Tris-buffer solution to obtain a tannic acid solution of 4-5 g/L, and adding the hydroxylated multi-walled carbon nanotube to uniformly disperse to obtain a hydroxylated multi-walled carbon nanotube dispersion solution.
Preferably, the preparation method of the hydroxylated multi-walled carbon nanotube dispersion liquid comprises the following steps: dispersing tannic acid in N, N-dimethylformamide, setting the temperature to be 60-65 ℃, dropwise adding toluene diisocyanate for 2.5-3 hours, reacting for 15-20 minutes, washing and drying to obtain a tannic acid mixture; dispersing the obtained product in a Tris-buffer solution to obtain 4-5 g/L tannic acid solution, and adding hydroxylated multi-walled carbon nanotubes to uniformly disperse the tannic acid solution to obtain a hydroxylated multi-walled carbon nanotube dispersion solution.
Preferably, the mass ratio of the tannic acid to the toluene diisocyanate is 1 (0.07-0.09).
Preferably, the aminopropyl isobutyl silsesquioxane solution is 8-10 wt% aminopropyl isobutyl silsesquioxane-dichloromethane solution.
Optimally, in S3, the mass ratio of the ultra-high molecular weight polyethylene fiber to the modified polyester fiber is (7-8) to (2-3); the technological parameters in the cabling process are as follows: the twist is 300-350 twist/m, and the strip-discharging speed is 14-15 m/min.
Optimally, in S2, the bath ratio of the polyester fiber to the hydroxylated multi-walled carbon nanotube dispersion liquid is 1 (6-8); in S4, the bath ratio of the composite yarn to the aminopropyl isobutyl silsesquioxane solution is 1 (4-5).
Preferably, the waterproof polyethylene yarn is prepared by the preparation method of the waterproof polyethylene yarn.
In the technical scheme, hydroxyl-terminated polybutadiene is utilized to introduce the hydroxylated multi-walled carbon nanotubes into the ultra-high molecular weight polyethylene fiber, so that the heat resistance, the wear resistance, the low creep property and the surface roughness are improved; meanwhile, modified terylene is used for blending, and aminopropyl isobutyl silsesquioxane is used for surface modification, so that the wear resistance and the surface hydrophobicity are further improved; obtain the waterproof polyethylene yarn with excellent performance.
(1) In the scheme, the surface of the hydroxylated multi-wall carbon nanotube is modified by hydroxyl-terminated polybutadiene through an etherification reaction to obtain the carbon nanotube composite. Firstly, the multi-walled carbon nanotube is a wear-resistant and high-thermal-conductivity material, so that the abrasion can be effectively reduced, and the dispersion of heat generated by abrasion can be buffered; secondly, polybutadiene on the surface of the multi-wall carbon nano tube is broken, so that the dispersibility of the filler in the matrix is effectively enhanced; and thirdly, polybutadiene is a poly-alpha-olefin elastomer, and can enhance the internal entanglement of polyethylene molecules and improve the creep resistance of the fiber by cooperating with the hydroxylated multi-walled carbon nanotube, thereby improving the mechanical property of the ultra-high molecular weight polyethylene fiber. Meanwhile, the surface roughness of the ultra-high molecular weight polyethylene fiber is enhanced by the carbon nano tube compound, so that the cohesive force with the polyester fiber can be increased, and the mechanical property of the polyethylene yarn is enhanced.
(2) In the scheme, the polyester fiber and the ultra-high molecular weight polyethylene fiber are blended. Compared with other fibers, the polyester fibers have better heat resistance and thermal insulation performance and good rebound resilience, and can be optimized and complemented with polyethylene fibers. But the surface is smooth and the cohesive force is poor; meanwhile, static electricity is generated in the spinning process, and the prepared yarn has a pilling phenomenon; therefore, in the scheme, the surface treatment is carried out, the hydroxylated multi-wall carbon nano tube is a conductive functional body, can play an antistatic role, and can be applied to the surface of the polyester fiber to enhance the cohesive force of the polyester fiber and the ultra-high molecular weight polyethylene fiber. But the uniform dispersibility of the hydroxylated multi-walled carbon nanotubes is critical.
In the scheme, the hydroxylated multi-walled carbon nanotube dispersion liquid is prepared by two ways; one is to directly use tannic acid to enhance the dispersibility; alternatively, a portion of the tannic acid is converted to an aqueous tannic acid ester, further increasing steric hindrance, forming a highly dispersed dispersion, and the presence of the aqueous tannic acid ester enhances the affinity for the polyester fibers.
(3) In the scheme, aminopropyl isobutyl silsesquioxane (AM0265) is used for surface treatment of the composite yarn to further enhance abrasion resistance, and is subjected to hydrophobic treatment. The yarn is further immersed, so that gaps of the yarn can be filled, and hydrogen bond acting force is formed with residual hydrogen bonds on the surface; or quinones derived from tannic acid by self-polymerization can react with amino groups by Schiff base/Michael addition. Thereby consuming residual hydrophilic groups, enhancing surface hydrophobicity, achieving the waterproof effect and expanding application.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following examples, hydroxylated multi-walled carbon nanotubes were purchased with the product number HQNANO-CNTs-012H.
Example 1:
step 1: (1) placing 3 parts of dried hydroxylated multi-walled carbon nanotubes into a reaction bottle containing N-hexane, uniformly dispersing, and sequentially adding 15 parts of hydroxyl-terminated polybutadiene, N-phenyl-beta-naphthylamine and potassium carbonate (the ratio of the hydroxylated multi-walled carbon nanotubes to the N-hexane is 10mg:6mL, the addition amount of the N-phenyl-beta-naphthylamine is 0.8 wt% of the mass of the hydroxyl-terminated polybutadiene, and the addition amount of the potassium carbonate is 30 wt% of the mass of the hydroxylated multi-walled carbon nanotubes) while stirring; setting the temperature at 70 ℃ for reaction for 12 hours, washing with methanol, and drying to obtain the carbon nanotube composite. (2) Mixing the carbon nanotube composite with 82 parts of ultra-high molecular weight polyethylene, placing the mixture in petroleum ether, swelling the mixture at the set temperature of 120 ℃ for 1 hour to obtain a spinning solution with the concentration of 8 wt%, and then performing gel spinning and 3-level super-drawing (total multiple 240) to obtain the ultra-high molecular weight polyethylene fiber.
And 2, step: (1) weighing tannic acid and hydroxylated multi-wall carbon nano-tubes according to the mass ratio of 1:0.5, and weighing toluene diisocyanate according to the mass ratio of the tannic acid to the toluene diisocyanate of 1: 0.08; dispersing tannic acid in N, N-dimethylformamide, setting the temperature to be 60 ℃, dropwise adding for 3 hours, reacting for 15 minutes, washing and drying to obtain a tannic acid mixture; the obtained solution was dispersed in Tris-buffer solution (pH 7.7) to obtain 4.6g/L tannic acid solution, and then hydroxylated multiwall carbon nanotubes were added to the solution to disperse the solution uniformly, thereby obtaining hydroxylated multiwall carbon nanotube dispersion. (2) And (2) carrying out plasma treatment on the surface of the polyester fiber, placing the polyester fiber in the hydroxylated multi-walled carbon nanotube dispersion liquid, stirring and dipping for 12 hours at a bath ratio of 1:8, washing, and drying to obtain the modified polyester fiber.
And step 3: mixing the ultra-high molecular weight polyethylene fiber and the modified polyester fiber according to the mass ratio of 8:2, and performing blowing, cotton carding, drawing, roving and spinning processes to obtain mixed fine sand; putting two strands of the same mixed fine sand into a doubling and twisting combined machine, and doubling and twisting under the conditions that the twist number is 320 twist/m and the strip discharging speed is 14 m/min; and obtaining the composite yarn.
And 4, step 4: and (3) immersing the composite yarn in 8 wt% aminopropyl isobutyl silsesquioxane-dichloromethane solution, stirring and immersing for 10 hours at a bath ratio of 1:5, washing with ethanol, and drying to obtain the waterproof polyethylene yarn.
Example 2:
step 1: (1) placing 3 parts of dried hydroxylated multi-walled carbon nanotubes into a reaction bottle containing N-hexane, uniformly dispersing, and sequentially adding 12 parts of hydroxyl-terminated polybutadiene, N-phenyl-beta-naphthylamine and potassium carbonate (the ratio of the hydroxylated multi-walled carbon nanotubes to the N-hexane is 10mg:6mL, the addition amount of the N-phenyl-beta-naphthylamine is 0.8 wt% of the mass of the hydroxyl-terminated polybutadiene, and the addition amount of the potassium carbonate is 30 wt% of the mass of the hydroxylated multi-walled carbon nanotubes) while stirring; setting the temperature to 65 ℃ for 14 hours of reaction, washing with methanol, and drying to obtain the carbon nanotube composite. (2) Mixing the carbon nano tube compound with 85 parts of ultra-high molecular weight polyethylene, placing the mixture in petroleum ether, swelling the mixture for 1 hour at the set temperature of 120 ℃ to obtain a spinning solution with the concentration of 8 wt%, and performing gel spinning and 3-stage super-power stretching (total power 240) to obtain the ultra-high molecular weight polyethylene fiber.
Step 2: (1) weighing tannic acid and hydroxylated multi-wall carbon nano-tubes according to the mass ratio of 1:0.4, and weighing toluene diisocyanate according to the mass ratio of the tannic acid to the toluene diisocyanate of 1: 0.07; dispersing tannic acid in N, N-dimethylformamide, setting the temperature at 60 ℃, dropwise adding for 2.5 hours, reacting for 15 minutes, washing and drying to obtain a tannic acid mixture; dispersing the obtained product in a Tris-buffer solution (pH 7.7) to obtain 4g/L tannic acid solution, adding hydroxylated multi-wall carbon nanotubes, and uniformly dispersing to obtain a hydroxylated multi-wall carbon nanotube dispersion liquid. (2) And (2) carrying out plasma treatment on the surface of the polyester fiber, placing the polyester fiber in the hydroxylated multi-walled carbon nanotube dispersion liquid, stirring and dipping for 12 hours at a bath ratio of 1:8, washing, and drying to obtain the modified polyester fiber.
And 3, step 3: mixing the ultra-high molecular weight polyethylene fiber and the modified polyester fiber according to the mass ratio of 7:3, and performing blowing, cotton carding, drawing, roving and spinning processes to obtain mixed fine sand; putting two strands of the same mixed fine sand into a doubling and twisting combined machine, and doubling and twisting under the conditions that the twist number is 300 twist/m and the strip discharging speed is 14 m/min; and obtaining the composite yarn.
And 4, step 4: and (3) immersing the composite yarn in 8 wt% aminopropyl isobutyl silsesquioxane-dichloromethane solution, stirring and immersing for 10 hours at a bath ratio of 1:5, washing with ethanol, and drying to obtain the waterproof polyethylene yarn.
Example 3:
step 1: (1) placing 4 parts of dried hydroxylated multi-walled carbon nanotubes into a reaction bottle containing N-hexane, uniformly dispersing, and sequentially adding 16 parts of hydroxyl-terminated polybutadiene, N-phenyl-beta-naphthylamine and potassium carbonate (the proportion of the hydroxylated multi-walled carbon nanotubes to the N-hexane is 10mg:6mL, the addition amount of the N-phenyl-beta-naphthylamine is 0.8 wt% of the mass of the hydroxyl-terminated polybutadiene, and the addition amount of the potassium carbonate is 30 wt% of the mass of the hydroxylated multi-walled carbon nanotubes) under stirring; setting the temperature at 75 ℃ for reaction for 12 hours, washing with methanol, and drying to obtain the carbon nanotube composite. (2) Mixing the carbon nanotube composite with 80 parts of ultra-high molecular weight polyethylene, placing the mixture in petroleum ether, swelling the mixture at the set temperature of 120 ℃ for 1 hour to obtain a spinning solution with the concentration of 8 wt%, and then performing gel spinning and 3-level super-drawing (total multiple 240) to obtain the ultra-high molecular weight polyethylene fiber.
Step 2: (1) weighing tannic acid and hydroxylated multi-wall carbon nano-tubes according to the mass ratio of 1:0.5, and weighing toluene diisocyanate according to the mass ratio of the tannic acid to the toluene diisocyanate of 1: 0.09; dispersing tannic acid in N, N-dimethylformamide, setting the temperature at 65 ℃, dropwise adding for 3 hours, reacting for 15 minutes, washing and drying to obtain a tannic acid mixture; dispersing the obtained product in Tris-buffer solution (pH 7.7) to obtain 5g/L tannic acid solution, adding hydroxylated multi-wall carbon nanotubes, and uniformly dispersing to obtain hydroxylated multi-wall carbon nanotube dispersion liquid. (2) And (2) carrying out plasma treatment on the surface of the polyester fiber, placing the polyester fiber in the hydroxylated multi-walled carbon nanotube dispersion liquid, stirring and dipping for 12 hours at a bath ratio of 1:8, washing, and drying to obtain the modified polyester fiber.
And 3, step 3: mixing the ultra-high molecular weight polyethylene fiber and the modified polyester fiber according to the mass ratio of 8:2, and performing blowing, cotton carding, drawing, roving and spinning processes to obtain mixed fine sand; putting two strands of the same mixed fine sand into a doubling and twisting combined machine, and doubling and twisting under the conditions that the twist number is 350 twist/m and the strip discharging speed is 15 m/min; and obtaining the composite yarn.
And 4, step 4: and (3) immersing the composite yarn in a 10 wt% aminopropyl isobutyl silsesquioxane-dichloromethane solution, stirring and immersing for 10 hours at a bath ratio of 1:5, washing with ethanol, and drying to obtain the waterproof polyethylene yarn.
Example 4: toluene diisocyanate was not added for modification.
Step 1: (1) placing 3 parts of dried hydroxylated multi-walled carbon nanotubes into a reaction bottle containing N-hexane, uniformly dispersing, and sequentially adding 15 parts of hydroxyl-terminated polybutadiene, N-phenyl-beta-naphthylamine and potassium carbonate (the ratio of the hydroxylated multi-walled carbon nanotubes to the N-hexane is 10mg:6mL, the addition amount of the N-phenyl-beta-naphthylamine is 0.8 wt% of the mass of the hydroxyl-terminated polybutadiene, and the addition amount of the potassium carbonate is 30 wt% of the mass of the hydroxylated multi-walled carbon nanotubes) while stirring; setting the temperature at 70 ℃ for reaction for 12 hours, washing with methanol, and drying to obtain the carbon nanotube composite. (2) Mixing the carbon nanotube composite with 82 parts of ultra-high molecular weight polyethylene, placing the mixture in petroleum ether, swelling the mixture at the set temperature of 120 ℃ for 1 hour to obtain a spinning solution with the concentration of 8 wt%, and then performing gel spinning and 3-level super-drawing (total multiple 240) to obtain the ultra-high molecular weight polyethylene fiber.
Step 2: weighing tannic acid and hydroxylated multi-wall carbon nanotubes according to the mass ratio of 1: 0.5; dispersing tannic acid in Tris-buffer solution (pH is 7.7) to obtain 4.6g/L tannic acid solution, and adding hydroxylated multi-wall carbon nanotubes to disperse uniformly to obtain hydroxylated multi-wall carbon nanotube dispersion liquid. (2) Performing plasma treatment on the surface of polyester fiber, placing the polyester fiber in a hydroxylated multi-walled carbon nanotube dispersion liquid, stirring and soaking for 12 hours at a bath ratio of 1:8, washing, and drying to obtain modified polyester fiber;
and step 3: mixing the ultra-high molecular weight polyethylene fiber and the modified polyester fiber according to the mass ratio of 8:2, and performing blowing, cotton carding, drawing, roving and spinning processes to obtain mixed fine sand; putting two strands of the same mixed fine sand into a doubling and twisting combined machine, and doubling and twisting under the conditions that the twist number is 320 twist/m and the strip discharging speed is 14 m/min; and obtaining the composite yarn.
And 4, step 4: and (3) immersing the composite yarn in 8 wt% aminopropyl isobutyl silsesquioxane-dichloromethane solution, stirring and immersing for 10 hours at a bath ratio of 1:5, washing with ethanol, and drying to obtain the waterproof polyethylene yarn.
Example 5: no hydroxylated multi-wall carbon nano-tube is added in the preparation process of the ultra-high molecular weight polyethylene fiber.
Step 1: mixing 15 parts of hydroxyl-terminated polybutadiene and 85 parts of ultrahigh molecular weight polyethylene, placing the mixture in petroleum ether, swelling the mixture at the set temperature of 120 ℃ for 1 hour to obtain a spinning solution with the concentration of 8 wt%, and performing gel spinning and 3-level super-drawing (total multiple 240) to obtain the ultrahigh molecular weight polyethylene fiber.
Step 2: (1) weighing tannic acid and hydroxylated multi-walled carbon nanotubes according to the mass ratio of 1:0.5, and weighing toluene diisocyanate according to the mass ratio of the tannic acid to the toluene diisocyanate of 1: 0.08; dispersing tannic acid in N, N-dimethylformamide, setting the temperature at 60 ℃, dropwise adding for 3 hours, reacting for 15 minutes, washing and drying to obtain a tannic acid mixture; the obtained solution was dispersed in Tris-buffer solution (pH 7.7) to obtain 4.6g/L tannic acid solution, and then hydroxylated multiwall carbon nanotubes were added to the solution to disperse the solution uniformly, thereby obtaining hydroxylated multiwall carbon nanotube dispersion. (2) And (2) carrying out plasma treatment on the surface of the polyester fiber, placing the polyester fiber in the hydroxylated multi-walled carbon nanotube dispersion liquid, stirring and dipping for 12 hours at a bath ratio of 1:8, washing, and drying to obtain the modified polyester fiber.
And step 3: mixing the ultra-high molecular weight polyethylene fiber and the modified polyester fiber according to the mass ratio of 8:2, and performing blowing, cotton carding, drawing, roving and spinning processes to obtain mixed fine sand; putting two strands of the same mixed fine sand into a doubling and twisting combined machine, and doubling and twisting under the conditions that the twist number is 320 twist/m and the strip discharging speed is 14 m/min; and obtaining the composite yarn.
And 4, step 4: and (3) immersing the composite yarn in 8 wt% aminopropyl isobutyl silsesquioxane-dichloromethane solution, stirring and immersing for 10 hours at a bath ratio of 1:5, washing with ethanol, and drying to obtain the waterproof polyethylene yarn.
Example 6: in the preparation process of the ultra-high molecular weight polyethylene fiber, the hydroxylated multi-walled carbon nanotube is modified by hydroxyl-terminated polybutadiene.
Step 1: mixing 3 parts of dried hydroxylated multi-wall carbon nano-tubes with 97 parts of ultrahigh molecular weight polyethylene, placing the mixture in petroleum ether, swelling the mixture at the set temperature of 120 ℃ for 1 hour to obtain a spinning solution with the concentration of 8 wt%, and then performing gel spinning and 3-level super-fold stretching (total multiple 240) to obtain the ultrahigh molecular weight polyethylene fiber.
And 2, step: (1) weighing tannic acid and hydroxylated multi-wall carbon nano-tubes according to the mass ratio of 1:0.5, and weighing toluene diisocyanate according to the mass ratio of the tannic acid to the toluene diisocyanate of 1: 0.08; dispersing tannic acid in N, N-dimethylformamide, setting the temperature at 60 ℃, dropwise adding for 3 hours, reacting for 15 minutes, washing and drying to obtain a tannic acid mixture; the obtained solution was dispersed in Tris-buffer solution (pH 7.7) to obtain 4.6g/L tannic acid solution, and then hydroxylated multiwall carbon nanotubes were added to the solution to disperse the solution uniformly, thereby obtaining hydroxylated multiwall carbon nanotube dispersion. (2) And (2) carrying out plasma treatment on the surface of the polyester fiber, placing the polyester fiber in the hydroxylated multi-walled carbon nanotube dispersion liquid, stirring and dipping for 12 hours at a bath ratio of 1:8, washing, and drying to obtain the modified polyester fiber.
And step 3: mixing the ultra-high molecular weight polyethylene fiber and the modified polyester fiber according to the mass ratio of 8:2, and performing blowing, cotton carding, drawing, roving and spinning processes to obtain mixed fine sand; putting two strands of the same mixed fine sand into a doubling and twisting combined machine, and doubling and twisting at the twist of 320 twist/m and the strip discharging speed of 14 m/min; and obtaining the composite yarn.
And 4, step 4: and (3) immersing the composite yarn in 8 wt% aminopropyl isobutyl silsesquioxane-dichloromethane solution, stirring and immersing for 10 hours at a bath ratio of 1:5, washing with ethanol, and drying to obtain the waterproof polyethylene yarn.
Example 7: and replacing the modified polyester fiber with the original polyester fiber.
Step 1: (1) placing 3 parts of dried hydroxylated multi-walled carbon nanotubes into a reaction bottle containing N-hexane, uniformly dispersing, and sequentially adding 15 parts of hydroxyl-terminated polybutadiene, N-phenyl-beta-naphthylamine and potassium carbonate (the ratio of the hydroxylated multi-walled carbon nanotubes to the N-hexane is 10mg:6mL, the addition amount of the N-phenyl-beta-naphthylamine is 0.8 wt% of the mass of the hydroxyl-terminated polybutadiene, and the addition amount of the potassium carbonate is 30 wt% of the mass of the hydroxylated multi-walled carbon nanotubes) while stirring; setting the temperature at 70 ℃ for reaction for 12 hours, washing with methanol, and drying to obtain the carbon nanotube composite. (2) Mixing the carbon nanotube composite with 82 parts of ultra-high molecular weight polyethylene, placing the mixture in petroleum ether, swelling the mixture at the set temperature of 120 ℃ for 1 hour to obtain a spinning solution with the concentration of 8 wt%, and then performing gel spinning and 3-level super-drawing (total multiple 240) to obtain the ultra-high molecular weight polyethylene fiber.
Step 2: mixing the ultra-high molecular weight polyethylene fiber and the polyester fiber according to the mass ratio of 8:2, and performing blowing, cotton carding, drawing, roving and spinning processes to obtain mixed fine sand; putting two strands of the same mixed fine sand into a doubling and twisting combined machine, and doubling and twisting under the conditions that the twist number is 320 twist/m and the strip discharging speed is 14 m/min; and obtaining the composite yarn.
And step 3: and (3) immersing the composite yarn in 8 wt% aminopropyl isobutyl silsesquioxane-dichloromethane solution, stirring and immersing for 10 hours at a bath ratio of 1:5, washing with ethanol, and drying to obtain the waterproof polyethylene yarn.
Example 8: the aminopropyl isobutyl silsesquioxane-dichloromethane solution was not used for surface modification.
Step 1: (1) placing 3 parts of dried hydroxylated multi-walled carbon nanotubes into a reaction bottle containing N-hexane, uniformly dispersing, and sequentially adding 15 parts of hydroxyl-terminated polybutadiene, N-phenyl-beta-naphthylamine and potassium carbonate (the proportion of the hydroxylated multi-walled carbon nanotubes to the N-hexane is 10mg:6mL, the addition amount of the N-phenyl-beta-naphthylamine is 0.8 wt% of the mass of the hydroxyl-terminated polybutadiene, and the addition amount of the potassium carbonate is 30 wt% of the mass of the hydroxylated multi-walled carbon nanotubes) while stirring; setting the temperature at 70 ℃ for reaction for 12 hours, washing with methanol, and drying to obtain the carbon nanotube composite. (2) Mixing the carbon nanotube composite with 82 parts of ultra-high molecular weight polyethylene, placing the mixture in petroleum ether, swelling the mixture at the set temperature of 120 ℃ for 1 hour to obtain a spinning solution with the concentration of 8 wt%, and then performing gel spinning and 3-level super-drawing (total multiple 240) to obtain the ultra-high molecular weight polyethylene fiber.
Step 2: (1) weighing tannic acid and hydroxylated multi-walled carbon nanotubes according to the mass ratio of 1:0.5, and weighing toluene diisocyanate according to the mass ratio of the tannic acid to the toluene diisocyanate of 1: 0.08; dispersing tannic acid in N, N-dimethylformamide, setting the temperature at 60 ℃, dropwise adding for 3 hours, reacting for 15 minutes, washing and drying to obtain a tannic acid mixture; dispersing the solution in Tris-buffer solution (pH 7.7) to obtain 4.6g/L tannic acid solution, adding hydroxylated multi-wall carbon nanotubes, and dispersing uniformly to obtain hydroxylated multi-wall carbon nanotube dispersion. (2) And (2) carrying out plasma treatment on the surface of the polyester fiber, placing the polyester fiber in the hydroxylated multi-walled carbon nanotube dispersion liquid, stirring and dipping for 12 hours at a bath ratio of 1:8, washing, and drying to obtain the modified polyester fiber.
And step 3: mixing the ultra-high molecular weight polyethylene fiber and the modified polyester fiber according to the mass ratio of 8:2, and performing blowing, cotton carding, drawing, roving and spinning processes to obtain mixed fine sand; putting two strands of the same mixed fine sand into a doubling and twisting combined machine, and doubling and twisting under the conditions that the twist number is 320 twist/m and the strip discharging speed is 14 m/min; and obtaining the waterproof polyethylene yarn.
Experiment: the waterproof polyethylene yarns prepared in examples 1-8 were subjected to performance characterization, and the detection data are shown in the following table. Testing the breaking strength of the yarn according to GB/T3916-2013; referring to FIG. 3 of the cyclic wear resistance test in patent CN201080054291.2 as a detection device, and using ASTM-D6611 as a standard method, the cyclic fracture number and the friction coefficient are obtained by detection; and simultaneously testing the strength before and after the test, and calculating to obtain the strength retention rate.
| Examples | Breaking Strength/cN/dex | Elongation at break/% | Number of cycle breaks | Coefficient of friction | Contact Angle/° |
| Example 1 | 79.12 | 9.8 | 33897 | 0.28 | 147.2 |
| Example 2 | 78.72 | 9.6 | 33412 | 0.29 | 146.9 |
| Example 3 | 78.89 | 9.9 | 33654 | 0.28 | 147.1 |
| Example 4 | 77.92 | 10.0 | 32715 | 0.31 | 146.8 |
| Example 5 | 68.84 | 8.7 | 28997 | 0.36 | 147.2 |
| Example 6 | 75.83 | 9.2 | 31874 | 0.32 | 147.0 |
| Example 7 | 67.54 | 8.4 | 26789 | 0.39 | 135.4 |
| Example 8 | 70.34 | 8.9 | 29870 | 0.36 | 100.3 |
And (4) conclusion: the data obtained from examples 1 to 3 show that: the prepared waterproof polyethylene yarn has better breaking strength, wear resistance and hydrophobicity, and can be used for aspects of navigation cables, engineering hoisting and the like.
Comparing the data from examples 4-8 to example 1 shows that: in example 4, the tannin is not partially modified by toluene diisocyanate to obtain water-based isocyanate, so that the affinity with polyester fibers is reduced, the distribution uniformity of the hydroxylated multi-wall carbon nanotubes is reduced, and the related performances of the yarn are reduced. In example 5, the creep rate of the polyethylene fiber was increased and the low creep performance was decreased because no hydroxylated multi-walled carbon nanotubes were added to the ultra-high molecular weight polyethylene fiber; meanwhile, the surface roughness is reduced, the acting force between the surface roughness and the polyester fiber is reduced, and meanwhile, the heat accumulation can be generated due to the fact that the nano tube is not contained, so that the abrasion performance is reduced. In example 6, since hydroxyl-terminated polybutadiene was not used for modification, creep property was lowered, so that the properties were lowered. The reason is that: polybutadiene is a poly-alpha-olefin elastomer that enhances the intramolecular entanglement of polyethylene molecules and increases creep performance. In example 7, the heat resistance was decreased due to the unmodified polyester fiber, the heat was gradually accumulated, and the abrasion resistance was decreased; the acting force between the body fibers is reduced, so that the mechanical property of the yarn is reduced. In example 8, since aminopropyl isobutyl silsesquioxane is not used and is not filled in the pores, the surface roughness of the yarn is increased and the wear resistance is reduced; and the waterproof property is lowered.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement 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 preparation method of waterproof polyethylene yarns is characterized by comprising the following steps: the method comprises the following steps:
s1: modifying the surface of hydroxyl-terminated polybutadiene with a hydroxylated multiwalled carbon nanotube to obtain a carbon nanotube composite; mixing the fiber with ultrahigh molecular weight polyethylene, placing the mixture in petroleum ether for swelling to obtain a spinning solution, and performing gel spinning and super-drawing to obtain ultrahigh molecular weight polyethylene fiber;
s2: performing plasma treatment on the surface of the polyester fiber, placing the polyester fiber in a hydroxylated multi-walled carbon nanotube dispersion liquid, stirring and dipping, washing and drying to obtain modified polyester fiber;
s3: mixing the ultra-high molecular weight polyethylene fiber and the modified polyester fiber, and performing blowing, cotton carding, drawing, roving and spinning processes to obtain mixed fine sand; putting two strands of the same mixed fine sand into a doubling and twisting combined machine, and doubling and twisting; obtaining a composite yarn;
s4: and (3) immersing the composite yarn in aminopropyl isobutyl silsesquioxane solution, stirring, immersing, washing and drying to obtain the waterproof polyethylene yarn.
2. The method of claim 1 for preparing a water-resistant polyethylene yarn, wherein: the raw material of the ultra-high molecular weight polyethylene fiber comprises the following components: 80-85 parts of ultrahigh molecular weight polyethylene, 12-16 parts of hydroxyl-terminated polybutadiene and 3-4 parts of hydroxylated multi-wall carbon nanotubes in parts by weight.
3. The method of claim 1 for preparing a water-resistant polyethylene yarn, wherein: the preparation method of the carbon nano tube compound comprises the following steps: placing the dried hydroxylated multi-walled carbon nanotube into a reaction bottle containing normal hexane, uniformly dispersing, and sequentially adding hydroxyl polybutadiene, an antioxidant and potassium carbonate while stirring; and (3) reacting for 12-14 hours at the temperature of 65-75 ℃, washing with methanol, and drying to obtain the carbon nano tube compound.
4. The method of claim 1 for preparing a water-resistant polyethylene yarn, wherein: the preparation method of the hydroxylated multi-walled carbon nanotube dispersion liquid comprises the following steps: dispersing tannic acid in a Tris-buffer solution to obtain a tannic acid solution of 4-5 g/L, and adding the hydroxylated multi-walled carbon nanotube to uniformly disperse to obtain a hydroxylated multi-walled carbon nanotube dispersion solution.
5. The method of claim 1 for making a water resistant polyethylene yarn, wherein: the preparation method of the hydroxylated multi-walled carbon nanotube dispersion liquid comprises the following steps: dispersing tannic acid in N, N-dimethylformamide, setting the temperature to be 60-65 ℃, dropwise adding toluene diisocyanate for 2.5-3 hours, reacting for 15-20 minutes, washing and drying to obtain a tannic acid mixture; dispersing the obtained product in a Tris-buffer solution to obtain 4-5 g/L tannic acid solution, and adding hydroxylated multi-walled carbon nanotubes to uniformly disperse the tannic acid solution to obtain a hydroxylated multi-walled carbon nanotube dispersion solution.
6. The method of claim 5, wherein the method comprises the steps of: the mass ratio of the tannic acid to the toluene diisocyanate is 1 (0.07-0.09).
7. The method of claim 1 for preparing a water-resistant polyethylene yarn, wherein: the aminopropyl isobutyl silsesquioxane solution is 8-10 wt% aminopropyl isobutyl silsesquioxane-dichloromethane solution.
8. The method of claim 1 for making a water resistant polyethylene yarn, wherein: in S3, the mass ratio of the ultra-high molecular weight polyethylene fiber to the modified polyester fiber is (7-8) to (2-3); the technological parameters in the cabling process are as follows: the twist is 300-350 twist/m, and the strip-discharging speed is 14-15 m/min.
9. The method of claim 1 for preparing a water-resistant polyethylene yarn, wherein: in S2, the bath ratio of the polyester fiber to the hydroxylated multi-walled carbon nanotube dispersion liquid is 1 (6-8); in S4, the bath ratio of the composite yarn to the aminopropyl isobutyl silsesquioxane solution is 1 (4-5).
10. A waterproof polyethylene yarn prepared by the method for preparing a waterproof polyethylene yarn according to any one of claims 1 to 9.
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| CN116791258A (en) * | 2023-07-03 | 2023-09-22 | 山东金冠网具有限公司 | Preparation method of high-waterproof conductive fiber based on graphene |
| CN117306041A (en) * | 2023-08-23 | 2023-12-29 | 武汉纺织大学 | An ultra-high molecular weight polyethylene/polyester composite yarn and its preparation method |
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| CN117306041A (en) * | 2023-08-23 | 2023-12-29 | 武汉纺织大学 | An ultra-high molecular weight polyethylene/polyester composite yarn and its preparation method |
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