Wear-resistant fiber, method for preparing same, and use thereof

Abstract

The application relates to a wear-resistant fiber, a preparation method and application thereof, and belongs to the fiber preparation field. The wear-resistant fiber comprises a fiber substrate, and a modified layer is arranged on at least a partial region of the surface of the fiber substrate, and the modified layer comprises an organic reinforcing material. The preparation method of the wear-resistant fiber is as follows: a modified liquid is used to pretreat the fiber, the pretreatment is one or more of soaking, spraying or point coating treatment of the fiber by using the modified liquid; and then, the pretreated fiber is subjected to heat treatment, and the fiber is stretched by 0-80 times during the heat treatment. The wear-resistant fiber can produce lubricating effects between the fibers and between the fiber and an action surface, thereby reducing the friction resistance, slowing down the wear speed, improving the wear resistance, and prolonging the service life of the downstream product of the fiber.

Description

Technical Field

[0001] This invention relates to the field of fibers and fiber preparation, specifically to wear-resistant fibers, their preparation methods, and applications. Background Technology

[0002] Ultra-high molecular weight polyethylene (UHMWPE) fiber, due to its outstanding mechanical properties and excellent chemical resistance, weather resistance, high energy absorption, and superior water resistance, is widely used in bulletproof protection, marine engineering, transportation, sporting goods, biomedicine, and home textiles. In recent years, with the increasing emphasis on marine resource development worldwide, the demand for UHMWPE fiber cables has surged. However, due to the weak intermolecular forces and low surface hardness of UHMWPE, the fibers are highly susceptible to wear and even breakage when rubbed against high-hardness surfaces such as metals and ceramic particles. For example, during use, ship mooring lines experience friction with the winch, which easily causes wear on the UHMWPE fibers, leading to a reduced rope lifespan. In the field of cut-resistant gloves, protective gloves woven using conventional ultra-high molecular weight polyethylene (UHMW-PE) fibers only achieve level three of the corresponding performance evaluation grades in EN388-2003 for both abrasion resistance and cut resistance, making them increasingly unsuitable for the protection against cuts in actual working environments. The main reason for this is the insufficient abrasion resistance of UHMW-PE fibers, which are prone to wear and rapid strength loss during use. Therefore, improving the abrasion resistance of UHMW-PE fibers has become an urgent problem to be solved in the UHMW-PE fiber industry.

[0003] To improve the wear resistance of ultra-high molecular weight polyethylene (UHMWPE) materials, various modification schemes have been proposed. For example, CN103012906B discloses an UHMWPE resin composition composed of UHMWPE resin, reinforcing fibers, carbon black, antioxidants, silane coupling agents, solid lubricants, and inorganic fillers. This UHMWPE resin composition is extruded into composite sheets for use as automotive floor or side panel liners. CN116410528A discloses a high wear-resistant composite material and its modification method, which includes mixing carboxylated nitrile rubber, chlorinated polyethylene rubber, UHMWPE, epoxy resin, aminated molybdenum disulfide, lubricant, crosslinking agent, inorganic filler, organic amine, and vulcanization auxiliaries, and then mixing them in a screw mixer to obtain a high wear-resistant composite material. However, the above schemes only modify the UHMWPE resin composition and cannot be used to modify the wear resistance of already filamentous UHMWPE fibers.

[0004] There are some existing studies on the modification of ultra-high molecular weight polyethylene (UHMWPE) fibers. Patent application CN113152079A discloses a method for preparing surface-modified UHMWPE fibers. This method involves chemically grafting an inorganic nanoparticle layer onto the surface of the UHMWPE fiber. This improves the fiber's surface abrasion resistance, interfacial adhesion, and cut resistance without compromising its mechanical properties. The inorganic nanoparticles used are selected from nano-silica, nano-titanium dioxide, zirconium oxide, and alumina. Patent application CN101050595B discloses a method for preparing nano-inorganic powder-coated polymer fiber composites. This method uses poly(p-phenylenebenzobisoxazole) fibers, aramid fibers, and UHMWPE fibers as matrices, and nano-titanium dioxide, nano-silica, nano-magnesium oxide, nano-zinc oxide, nano-alumina, nano-zirconia, nano-nickel oxide, and nano-cobalt oxide as intermediate coating powders. A nano-inorganic powder film is coated onto the surface of the chemical fiber using an impregnation coating method. The aforementioned patent involves forming a coating layer of nano-inorganic particles on the fiber surface. However, tests have shown that this coating layer provides very limited improvement to the fiber's abrasion resistance and cannot meet current abrasion resistance requirements. Summary of the Invention

[0005] Based on this, the present invention aims to overcome at least one defect of the prior art and provide a wear-resistant fiber, a preparation method thereof, and its application.

[0006] In a first aspect, the present invention relates to an abrasion-resistant fiber comprising a fiber matrix having a modified layer in at least a partial region on the surface of the fiber matrix, the modified layer comprising an organic reinforcing material, the abrasion-resistant fiber having a monofilament fineness of 0.3D to 10D, a strength of 5cN / dtex to 40cN / dtex, and a modulus of 140cN / dtex to 1400cN / dtex.

[0007] Secondly, the present invention relates to a method for preparing abrasion-resistant fibers, comprising the following steps:

[0008] The fiber is pretreated with a modified liquid, wherein the pretreatment is one or more of soaking, spraying or dotting the fiber with the modified liquid.

[0009] The pretreated fibers are then subjected to heat treatment, during which the fibers are stretched 0-80 times to obtain the wear-resistant fibers. The modified liquid contains the organic reinforcing material.

[0010] Thirdly, the present invention relates to the application of abrasion-resistant fibers, which are used in ropes, slings, fishing nets, net cages, ground nets, cargo nets, curtains, kite strings, dental floss, tennis racket strings, canvas, woven fabrics, non-woven fabrics, fabric tapes, battery products, capacitors, pressure vessels, hoses, umbilical cables, automotive devices, power transmission belts, building materials, stab-resistant products, cut-resistant products, bulletproof products, skis, helmets, rowing boats, canoes, bicycle frames, boat hulls, wing spars, speaker cones, electronic insulation, radomes, sails, geotextiles, automobile rims, bicycle rims, motorcycle rims, automotive interiors, impact panels, aircraft, satellites, radar, cockpits, seats, hockey sticks, baseball bats, tennis rackets, squash rackets, skis, snowboards, surfboards, paddleboards, boat hulls, masts, sails, boats, turbines, clothing, shoes, hats, and medical devices.

[0011] Fourthly, the present invention relates to a wear-resistant fiber product selected from the group consisting of: ropes, slings, fishing nets, net cages, ground nets, cargo nets, curtains, kite strings, dental floss, tennis racket strings, canvas, woven fabrics, non-woven fabrics, fabric tapes, battery products, capacitors, pressure vessels, hoses, umbilical cables, automotive components, power transmission belts, building materials, stab-resistant products, cut-resistant products, bulletproof products, skis, helmets, rowboats, canoes, bicycle frames, boat hulls, wing spars, speaker cones, electronic insulation, radomes, sails, automobile rims, bicycle rims, motorcycle rims, automotive interiors, impact panels, aircraft, satellites, radar, cockpits, seats, hockey sticks, baseball bats, tennis rackets, squash rackets, skis, snowboards, surfboards, paddleboards, boat hulls, masts, sails, turbines, clothing, shoes, hats, and medical devices.

[0012] The beneficial effects of this invention are as follows: by modifying the fiber, a modified layer is provided on the fiber surface, and an organic reinforcing material is provided in the modified layer. The modified layer has a lubricating function, which generates a lubricating effect between fibers and between fibers and the working surface, thereby reducing frictional resistance, slowing down the wear rate, and thus improving wear resistance, and improving the wear resistance level and service life of downstream fiber products. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0015] For ease of description of the wear-resistant fiber, fiber matrix and fiber product of the present invention, the fiber is defined with the surface as the reference, the side facing the axis as the inner side and the side away from the axis as the outer side.

[0016] Regarding the first aspect of the present invention, existing fibers, especially high-performance fibers, require modification to further improve their abrasion resistance. However, modifying fibers is difficult. Taking ultra-high molecular weight polyethylene fiber as an example, its molecular chain is connected by highly symmetrical methylene structures, which has a high degree of crystallinity and orientation. The surface lacks polar groups and has prominent chemical inertness. This chemical inertness makes it very difficult to introduce new functional groups or carry out chemical modification on the fiber surface. Due to the low surface energy, it has poor wettability and adhesion to other materials. In existing technologies, common modifications mainly involve setting an inorganic particle layer on the surface, such as nano-oxide particles, including silicon oxide, titanium oxide, aluminum oxide, and zirconium oxide. When the fiber is worn, the inorganic particle layer can withstand the wear first, thus improving the fiber's wear resistance to a certain extent. In other words, the hardness and thickness of the inorganic particles are used to improve wear resistance. However, in actual use, the inorganic particles on the surface are prone to falling off, eventually leading to wear resistance failure. In addition, these inorganic particles have high hardness and strength, which can easily damage the fiber matrix during use. In short, the improvement of fiber wear resistance by inorganic particles is very limited.

[0017] Through dedicated research, the applicant discovered that replacing inorganic particles with organic reinforcing materials, by forming a lubricating modified layer on the fiber surface, can create lubrication between fibers and between fibers and the contact surface, reducing the coefficient of friction, decreasing frictional resistance, and slowing down wear. This utilizes the lubricity of organic materials, rather than the hardness of inorganic particles, to improve wear resistance, thus completing the initial concept. Organic reinforcing materials primarily rely on the special functional groups and lubricating properties in their molecular structure to reduce friction and wear. During friction, organic reinforcing materials can form a thin, dense protective film on the friction surface. This film isolates the external environment from direct contact with the material surface, reducing the coefficient of friction and thus decreasing wear. Organic reinforcing materials can penetrate the material surface and bond with it through chemical bonding or physical adsorption, thereby increasing the surface hardness. Increased hardness makes the material more difficult to wear under external forces. Compared to inorganic particles, organic reinforcing materials generally have better compatibility with the fiber matrix, stronger adaptability to fiber surfaces, and can form good adhesion and wetting effects with various fibers.

[0018] In one preferred embodiment, the organic reinforcing material is selected from one or more organic materials capable of producing a lubricating effect on the fiber surface, such as solid organic materials and liquid organic materials. The solid organic materials are selected from one or more of oleamide, polycarbonate, polyethylene wax, polytetrafluoroethylene wax, polyurethane, polyimide, stearamide, vinyl bis-stearamide (EBS), ethylenedioleamide (EBO), erucamide, solid paraffin wax, and silicone-based wear-resistant agents; specifically, the silicone-based wear-resistant agents are selected from one or more of silicone, methyl silicone resin, ethyl silicone resin, polydimethylsiloxane, methyl methyl silicate, and polysilazane. The liquid organic materials are preferably selected from one or more of wax emulsions, dimethyl silicone oil, and liquid paraffin wax. The liquid organic materials are selected from one or more of wax emulsions, dimethyl silicone oil, liquid paraffin wax, polyethylene glycol, polypropylene glycol, methyl silicone oil, chlorophenyl silicone oil, trifluoropropyl silicone oil, glyceryl oleate, dibutyl sulfite, and toluene phosphate.

[0019] In one preferred embodiment, the shape and size of the organic reinforcing material are not particularly limited, as long as the lubrication effect can be achieved. Preferably, the solid organic material is in the form of powder, flake, porous, wire, rod, hollow structure, core-shell structure, etc.; the size of the solid organic reinforcing material is 10nm-100μm, specifically 15nm, 20nm, 25nm, 30nm, 40nm, 50nm, 70nm, 80nm, 100nm, 150nm, 200nm, 300nm, 400nm, 500nm, 600nm, 700nm, 800nm, 900nm, 2μm, 5μm, 10μm, 15μm, 20μm, 30μm, 40μm, 50μm, 60μm, 70μm, 80μm, 90μm, etc.

[0020] In one preferred embodiment, the thickness of the modified layer is not particularly limited. To better improve abrasion resistance, the thickness of the modified layer is preferably 0.1-100 μm, more preferably 1-50 μm, and even more preferably 1-30 μm. The thickness can also be 2 μm, 5 μm, 8 μm, 10 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, 60 μm, 70 μm, 80 μm, or 90 μm. If the modified layer is too thin, it may not effectively cover the fiber surface, thus providing limited abrasion resistance and protection. If the modified layer is too thick, although it can provide better abrasion resistance and protection, it may also increase the weight and cost of the fiber. Furthermore, excessively thick modified layers may affect the fiber's flexibility and other physical properties.

[0021] In one preferred embodiment, the modified layer occupies 0.1% to 100% of the total surface area of ​​the fiber matrix. Preferably, the modified layer occupies 0.2% to 95% of the total surface area of ​​the fiber matrix. The percentage can also be 0.5%, 0.8%, 1%, 2%, 3%, 5%, 8%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 70%, 75%, 80%, 85%, or 90%. The proportion of the modified layer to the total surface area of ​​the fiber matrix can be adjusted as needed. A proportion of 0.1% or higher can achieve an improvement effect, and 100% can exert the maximum modification effect.

[0022] In one preferred embodiment, a highly permeable region may be provided inside the fiber matrix. The highly permeable region is located inside the modified layer and extends into the fiber matrix. The highly permeable region includes the organic reinforcing material, and the thickness of the highly permeable region is 1% to 80% of the fiber matrix.

[0023] In one preferred embodiment, the highly permeable region is located inside the modified layer. The thickness of the highly permeable region relative to the fiber matrix refers to the proportion of the highly permeable region's thickness to the entire fiber matrix in a cross-section along the fiber length of the modified fiber. The thickness is the average thickness of the highly permeable region. Preferably, the proportion is 2% to 70%, more preferably 5% to 60%, and also 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 65%, 70%, and 75%. Alternatively, the thickness of the highly permeable region is 0.1 nm to 50 μm, preferably 1 nm to 45 μm, and can specifically be 10 nm, 100 nm, 200 nm, 300 nm, 500 nm, 800 nm, 1 μm, 2 μm, 5 μm, 10 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, or 40 μm. The thickness of the highly penetrating region does not need to be specifically limited, but the above-mentioned proportion or thickness is preferred. If the thickness or proportion of the highly penetrating region is excessive, although it can provide a better reinforcement effect, it may also lead to the destruction of the internal structure of the fiber, thereby affecting the strength and durability of the fiber, and may also increase production costs and processing difficulties.

[0024] In one preferred embodiment, the fiber is a high-performance fiber, such as ultra-high molecular weight polyethylene fiber, polyester, nylon, aramid fiber, aramid sulfone fiber, polyimide fiber, polybenzimidazole fiber, and poly(p-phenylenebenzobisoxazole) fiber. The fiber of the present invention is not limited to a specific type of fiber, as long as it can form the modified layer. The fiber can be a commercially available conventional fiber or a composite fiber with reinforcing materials. It may also have a functional layer on its surface, including further improvements to the fiber of the present invention, such as providing other desired functional layers on the surface, like a dyeing layer or an adhesive layer. The specifications of the fiber are not specifically limited. Taking ultra-high molecular weight polyethylene fiber as an example, its molecular weight is 1.5 million to 10 million, preferably 1.5 million to 6 million, and the diameter of a single fiber can be 1-500 μm, specifically 2 μm, 5 μm, 10 μm, 15 μm, 20 μm, 25 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, 100 μm, 200 μm, 300 μm, 400 μm, etc.

[0025] In one preferred embodiment, the strength of the abrasion-resistant fiber is 5 cN / dtex to 40 cN / dtex, preferably 10 cN / dtex to 37 cN / dtex, and may also be 15 cN / dtex, 20 cN / dtex, 25 cN / dtex, 28 cN / dtex, 30 cN / dtex, 31 cN / dtex, 32 cN / dtex, 33 cN / dtex, 34 cN / dtex, 35 cN / dtex or 36 cN / dtex.

[0026] In one preferred embodiment, the modulus of the wear-resistant fiber is 140 cN / dtex to 1400 cN / dtex, preferably 200 cN / dtex to 1370 cN / dtex, and also 300 cN / dtex, 400 cN / dtex, 500 cN / dtex, 600 cN / dtex, 700 cN / dtex, 800 cN / dtex, 900 cN / dtex, 1000 cN / dtex, 1100 cN / dtex, 1120 cN / dtex, 1150 cN / dtex, 1180 cN / dtex, 1200 cN / dtex, 1220 cN / dtex, 1250 cN / dtex, 1280 cN / dtex, 1300 cN / dtex, or 1350 cN / dtex.

[0027] In one preferred embodiment, the performance retention rate R of the fiber is 92% to 99.99%. The performance retention rate R is shown in formula (1):

[0028]

[0029] Where R is the fiber performance retention rate, and T ar The strength of the wear-resistant fiber is expressed in cN / dtex, T0 is the strength of the unmodified original fiber, and E is the strength of the original fiber. ar E0 represents the modulus of the wear-resistant fiber, expressed in cN / dtex, while E0 represents the modulus of the unmodified original fiber, also expressed in cN / dtex. By obtaining the modified layer on the fiber surface, the fiber maintains good performance, with a performance retention rate R of 88%–99.99%, preferably above 90%, and also 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, 99.5%, 99.8%, 99.9%, 99.95%, etc. The applicant unexpectedly discovered that, compared to modified layers made of other materials, such as inorganic oxides, graphene, graphite, and silicon carbide, the wear-resistant fiber of this invention exhibits a superior performance retention rate. This is also related to the fact that the properties of the organic reinforcing material are closer to those of the fiber, resulting in a thinner and denser modified layer.

[0030] In one preferred embodiment, optionally, the modified layer and the highly permeable region further include a coupling agent. Introducing a coupling agent into the modified layer allows organic reinforcing materials to be continuously grafted onto the surface and interior of the fiber, increasing the grafting rate of the organic reinforcing materials, better improving the abrasion resistance of the fiber filaments, and further increasing the grafting rate of organic reinforcing materials on the fiber filaments. Preferably, the coupling agent is a silane coupling agent, more preferably at least one selected from vinyltrichlorosilane, vinyltrimethoxysilane (A171), vinyltriethoxysilane (A151), γ-aminopropyltriethoxysilane (γ-ATPS), γ-methacryloyloxypropyltrimethoxysilane (KH-570), γ-(2,3)epoxy(propoxy)propyltrimethoxysilane (KH-560), γ-glycidoxypropyltrimethoxysilane, γ-aminopropylmethyldiethoxysilane, N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane, N-ethyl-3-trimethoxysilane-2-methylpropylamine, anilinepropyltrimethoxysilane, bis-[3-(triethoxysilane)-propyl]-amine, N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane, and γ-methacryloyloxypropyltrimethoxysilane. More preferably, the coupling agent is one or more of vinyltrichlorosilane, vinyltriethoxysilane, γ-aminopropyltriethoxysilane, and γ-glycidoxypropyltrimethoxysilane.

[0031] In one preferred embodiment, inorganic reinforcing particles are further added to the modified layer and the highly permeable region. These inorganic reinforcing particles are preferably metal oxides, such as silicon oxide, titanium oxide, zirconium oxide, aluminum oxide, magnesium oxide, zinc oxide, zirconium oxide, nickel oxide, cobalt oxide, manganese oxide, calcium oxide, and barium oxide. The inorganic reinforcing particles can be nanoparticles, or one or more of ultrafine glass microspheres, carbon fibers, carbon nanotubes, and basalt fibers. Although inorganic reinforcing particles do not improve wear resistance as much as organic reinforcing materials, they can enhance the fiber's cut strength.

[0032] In one preferred embodiment, a reinforcing material can be uniformly dispersed in the fiber matrix. For example, the reinforcing material can be introduced into the fiber matrix by adding one or more reinforcing materials to the fiber spinning raw material. The reinforcing material can be an organic reinforcing material or an inorganic reinforcing material. The inorganic reinforcing material includes one or more of graphite powder, graphene, lead powder, molybdenum disulfide, boron nitride, wollastonite, talc powder, silica powder, silicon carbide, carbon fiber, and metal oxides. The metal oxides include silicon oxide, titanium oxide, aluminum oxide, magnesium oxide, zirconium oxide, zinc oxide, cobalt oxide, nickel oxide, iron oxide, etc.

[0033] In one preferred embodiment, the abrasion-resistant fiber is subjected to an abrasion resistance test according to the ASTM D6611 method standard, wherein the abrasion-resistant fiber has an abrasion resistance of 800 to 5000 times, preferably more than 900 times, and also 1000, 1200, 1500, 2000, 2500, 3000, 3500, 4000, and 4500 times.

[0034] Regarding the second aspect of the present invention, the key to the method for preparing the wear-resistant fiber lies in pretreating the fiber with a modifying liquid and then performing subsequent heat treatment.

[0035] The following explanation uses ultra-high molecular weight polyethylene fiber as an example; the modification solution and heat treatment process used for other fibers are adjusted similarly.

[0036] In one preferred embodiment, the modified solvent is a solvent that does not permeate the fiber matrix. The solvent is an alcohol, ketone, and / or ether solvent. Examples of alcohols include methanol, ethanol, isopropanol, and n-butanol. Examples of ketones include acetone, methyl ethyl ketone, and methyl isobutyl ketone. Examples of ethers include diethyl ether, dimethyl ether, and isopropyl ether.

[0037] In one preferred embodiment, the modified liquid may contain a solvent with strong penetrating properties to the fibers. During the soaking process, the strong penetrating solvent in the modified liquid continuously penetrates into the fiber matrix, thereby introducing organic reinforcing materials to the fiber surface and interior, enhancing the fiber's lubricity, further improving abrasion resistance, and increasing the abrasion resistance and durability of downstream products of ultra-high molecular weight polyethylene fibers, such as ropes or textiles (e.g., cut-resistant wearable protective equipment).

[0038] In one preferred embodiment, the modified liquid contains a highly penetrating solvent, which is a solvent with a strong penetrating effect on ultra-high molecular weight polyethylene (UHMWPE). The highly penetrating solvent can be an organic solvent used in the solvent spinning method for UHMWPE, or an extractant used in the extraction process. The organic solvent has a strong swelling effect on UHMWPE, and the extractant has a strong penetrating ability. Through the action of the highly penetrating solvent, organic reinforcing materials can be continuously introduced into the surface and interior of the fiber, improving the fiber's abrasion resistance.

[0039] In one preferred embodiment, the strong-penetrating solvent can be any solvent and extractant known in the art suitable for gel-spun UHMWPE fibers. In some embodiments, the strong-penetrating solvent includes one or more of decahydronaphthalene, tetrahydronaphthalene, naphthalene, white oil, kerosene, paraffin oil, mineral oil, xylene, toluene, halogenated hydrocarbons, and petroleum ether. Preferably, the extractant is one or more of gasoline, n-hexane, carbon tetrachloride, dichloromethane, xylene, and halogenated alkanes. Preferably, the extractant is dichloromethane and / or xylene. Generally, the strong-penetrating solvent is selected from one or more of decahydronaphthalene, tetrahydronaphthalene, naphthalene, white oil, kerosene, paraffin oil, mineral oil, xylene, toluene, petroleum ether, gasoline, n-hexane, carbon tetrachloride, dichloromethane, halogenated alkanes, tetrachloroethylene, and hydrocarbon organic solvents.

[0040] In one preferred embodiment, the strong penetrating solvent is one or more of dichloromethane, tetrachloroethylene, decahydronaphthalene, and hydrocarbon organic solvents; preferably hydrocarbon organic solvents or tetrachloroethylene or mixtures thereof, and the hydrocarbon organic solvent is preferably PEGASOL3040.

[0041] In one preferred embodiment, the strong penetrating solvent is a hydrocarbon organic solvent or tetrachloroethylene or a mixture thereof. When the fiber is soaked in a modified solution having the aforementioned strong penetrating solvent, it is preferably combined with heating and / or ultrasonic-assisted penetration. When the strong penetrating solvent is decahydronaphthalene or dichloromethane or a combination thereof, it can be swollen and penetrated under static conditions at room temperature, and can also be combined with heating and / or ultrasonic-assisted penetration.

[0042] In one preferred embodiment, the modified liquid contains an organic reinforcing material selected from organic materials capable of producing a lubricating effect on the fiber surface, such as solid organic materials and liquid organic materials. The solid organic material is selected from one or more of oleamide, polycarbonate, polyethylene wax, polytetrafluoroethylene wax, polyurethane, polyimide, stearamide, vinyl bis-stearamide (EBS), ethylene dioleamide (EBO), erucamide, solid paraffin wax, and silicone-based wear-resistant agents. Specifically, the silicone-based wear-resistant agents are one or more of silicone, methyl silicone resin, ethyl silicone resin, polydimethylsiloxane, methyl methyl silicate, and polysilazane. The liquid organic material is selected from one or more of wax emulsions, dimethyl silicone oil, liquid paraffin wax, polyethylene glycol, polypropylene glycol, methyl silicone oil, chlorophenyl silicone oil, trifluoropropyl silicone oil, glyceryl oleate, dibutyl sulfite, and toluene phosphate.

[0043] In one preferred embodiment, the modified liquid may also contain a coupling agent. Preferably, the coupling agent is a silane coupling agent, more preferably at least one selected from vinyltrichlorosilane, vinyltrimethoxysilane (A171), vinyltriethoxysilane (A151), γ-aminopropyltriethoxysilane (γ-ATPS), γ-methacryloyloxypropyltrimethoxysilane (KH-570), γ-(2,3)epoxy(propoxy)propyltrimethoxysilane (KH-560), γ-glycidoxypropyltrimethoxysilane, γ-aminopropylmethyldiethoxysilane, N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane, N-ethyl-3-trimethoxysilane-2-methylpropylamine, anilinepropyltrimethoxysilane, bis-[3-(triethoxysilane)-propyl]-amine, N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane, and γ-methacryloyloxypropyltrimethoxysilane. More preferably, the coupling agent is one or more selected from vinyltrichlorosilane, vinyltriethoxysilane, γ-aminopropyltriethoxysilane, and γ-glycidoxypropyltrimethoxysilane. Introducing a coupling agent into the modification solution allows organic reinforcing materials to be continuously grafted onto the surface and interior of the fiber, increasing the grafting rate of the organic reinforcing materials and better improving the fiber's abrasion resistance.

[0044] In one preferred embodiment, the mass ratio of solvent to organic reinforcing material in the modified liquid is 100-40:10-1. In another preferred embodiment, the mass ratio of solvent, coupling agent, and organic reinforcing material in the modified liquid is 100-40:10-1:10-1. During the preparation of the modified liquid, at least one of the following methods is used: auxiliary stirring, ultrasonication, and megasonological physical treatment to ensure uniform dispersion of the components in the modified liquid.

[0045] In one preferred embodiment, the modified liquid further contains a surfactant, preferably an anionic surfactant, such as one or more of LAS, SDS, MSDS, SDBS, and BSDS; the amount of surfactant added is 1-5 wt.%. The surfactant has emulsifying properties, which can improve the dispersion uniformity of the organic reinforcing material and coupling agent in the modified liquid.

[0046] In one preferred embodiment, inorganic reinforcing particles are further added to the modified liquid. These inorganic reinforcing particles are preferably metal oxides, such as silicon oxide, titanium oxide, zirconium oxide, aluminum oxide, magnesium oxide, zinc oxide, zirconium oxide, nickel oxide, cobalt oxide, manganese oxide, calcium oxide, and barium oxide. The inorganic reinforcing particles can be nanoparticles, ultrafine glass microspheres, or carbon fibers. These inorganic reinforcing particles can enhance the cut resistance of ultra-high molecular weight polyethylene fibers.

[0047] In one preferred embodiment, during the soaking of ultra-high molecular weight polyethylene fibers, the temperature is maintained at 80℃-150℃, and the fibers are simultaneously stretched. The stretching ratio is 0-80 times, preferably 1-60 times, more preferably 1-50 times, and can also be 2 times, 3 times, 5 times, 8 times, 10 times, 12 times, 15 times, 20 times, 25 times, 30 times, 35 times, 40 times, etc. The specific stretching ratio can be determined according to the fiber thickness and actual needs.

[0048] In one preferred embodiment, the soaking time for ultra-high molecular weight polyethylene (UHMWPE) fibers at room temperature is 3 seconds to 1 hour, preferably 5 seconds to 50 minutes, and specifically can be 10 seconds, 20 seconds, 30 seconds, 40 seconds, 1 minute, 2 minutes, 3 minutes, 5 minutes, 10 minutes, 20 minutes, 30 minutes, 40 minutes, etc. The soaking time is directly related to the selected solvent and the molecular weight of the UHMWPE. If the solvent contains a highly penetrating solvent, the stronger the effect of the highly penetrating solvent, the shorter the soaking time; the smaller the molecular weight of the UHMWPE fibers, the shorter the soaking time. Under heating and / or ultrasonic conditions, the soaking time can be further shortened and the process efficiency improved.

[0049] In one preferred embodiment, wear-resistant fibers with different proportions of modified layer are obtained by controlling the soaking time. The soaking time can be controlled to ensure that the modified layer is 100% formed on the fiber surface, or the soaking time can be controlled to be shorter so that the modified layer is formed only in a part of the fiber surface, such as 20% or 30%, and the thickness of the strong penetration area in the fiber matrix is ​​also lower. Different thicknesses of modified layer and different thicknesses of strong penetration area are obtained by different soaking times.

[0050] In one preferred embodiment, a modified layer is obtained in a portion of the fiber surface by applying protection to areas on the fiber surface where the modified layer does not need to be formed, such as applying a sheath to areas where protection is needed, or coating with a coating that prevents the modified liquid from penetrating the fiber matrix, thereby performing a subsequent immersion treatment with the modified liquid.

[0051] In one preferred embodiment, the modified layer is obtained by means of dotting or spraying the modified liquid, and the area of ​​dotting or spraying is controlled to obtain the required wear-resistant fibers.

[0052] In one preferred embodiment, the ultra-high molecular weight polyethylene fiber is a gel fiber obtained from the extraction process of solvent spinning or a finished fiber that has undergone multiple stages of hot stretching; when it is a gel fiber obtained from the extraction process, the stretching ratio during the heat treatment process is greater than 0; if it is a finished fiber, the stretching process can be skipped during the heat treatment process.

[0053] In one preferred embodiment, the heat treatment temperature is 80-150°C and the treatment time is 10-240 min.

[0054] In one preferred embodiment, the heat treatment step is set as needed. If multi-stage stretching is required, the optimal heat treatment temperature is between 137.5-148℃, and the temperatures for the three stages of stretching are 137.5℃-147.3℃-147.3℃ respectively. Under these conditions, stretching can enable the product to obtain higher mechanical properties (high strength, high modulus). If multi-stage stretching is not required, the treatment temperature can be between 100-136℃, preferably 110-130℃, and the treatment time is preferably 20-120 minutes.

[0055] The heat treatment described in this invention is actually a heating and curing process. Heating and curing through heat treatment ensures that the modified layer forms a stable structure on the fiber surface. Simultaneously, heating and curing facilitates better chemical bonding between the modified layer and the fiber surface, and between the organic reinforcing material and fiber molecules, enhancing the adhesion of the organic reinforcing material to the fiber surface and / or interior. Without heat treatment and the heating and curing process, the organic reinforcing material may deform or fail during subsequent use. Furthermore, the bond between the modified layer and the fiber surface may be insufficient, leading to easy detachment or peeling of the modified layer, thus affecting its wear resistance.

[0056] Regarding a third aspect of the invention, the invention relates to the use of abrasion-resistant fibers in various application fields, mainly involving safety, protection, aviation, aerospace, national defense equipment, vehicle manufacturing, shipbuilding, sporting goods, and cultural and artistic products. It is particularly applicable to ropes, fishing nets, net cages, ground nets, cargo nets, curtains, kite strings, dental floss, tennis racket strings, canvas, woven fabrics, non-woven fabrics, fabric tapes, battery products, capacitors, pressure vessels, hoses, umbilical cables, automotive components, power transmission belts, building materials, stab-resistant products, cut-resistant products, bulletproof products, skis, helmets, rowing boats, canoes, bicycle frames, ship hulls, wing spars, speaker cones, electronic insulation, radomes, sails, geotextiles, automobile rims, bicycle rims, motorcycle rims, automotive interiors, impact panels, aircraft, satellites, radar, cockpits, seats, hockey sticks, baseball bats, tennis rackets, squash rackets, skis, snowboards, surfboards, paddleboards, ship hulls, masts, sails, boats, turbines, clothing, shoes, hats, medical devices, and slings.

[0057] In one preferred embodiment, the rope includes cable, fishing line, mooring line, trailer rope, climbing rope, winch rope, hoisting rope, lifting rope, and traction rope, etc.

[0058] Regarding a fourth aspect of the invention, the invention relates to abrasion-resistant fiber products, primarily concerning safety, protection, aviation, aerospace, defense equipment, vehicle manufacturing, shipbuilding, and sporting goods, especially ropes, fishing nets, net cages, ground nets, cargo nets, curtains, kite strings, dental floss, tennis racket strings, canvas, woven fabrics, non-woven fabrics, fabric tapes, battery products, capacitors, pressure vessels, hoses, umbilical cables, automotive components, power transmission belts, building materials, stab-resistant products, cut-resistant products, bulletproof products, skis, helmets, rowing boats, canoes, bicycle frames, ship hulls, wing spars, speaker cones, electronic insulation, radomes, sails, geotextiles, automobile rims, bicycle rims, motorcycle rims, automotive interiors, impact panels, aircraft, satellites, radar, cockpits, seats, hockey sticks, baseball bats, tennis rackets, squash rackets, skis, snowboards, surfboards, paddleboards, ship hulls, masts, sails, boats, turbines, clothing, shoes, hats, medical devices, and sling products.

[0059] In one preferred embodiment, the rope includes cable, fishing line, mooring line, trailer rope, climbing rope, winch rope, hoisting rope, lifting rope, and traction rope, etc.

[0060] Example

[0061] The embodiments of the present invention are for illustrative purposes only and should not be construed as limiting the present invention.

[0062] For simplicity, this paper only explicitly discloses some numerical ranges. However, any lower limit can be combined with any upper limit to form an unspecified range; and any lower limit can be combined with other lower limits to form an unspecified range, just as any upper limit can be combined with any other upper limit to form an unspecified range. Furthermore, although not explicitly stated, every point or individual value between the endpoints of a range is included within that range. Therefore, each point or individual value can be used as its own lower or upper limit, combined with any other point or individual value, or combined with other lower or upper limits to form an unspecified range.

[0063] The foregoing description of this application does not imply a description of every disclosed embodiment or implementation of the invention. Instead, the following description provides more specific examples of exemplary embodiments. Throughout the application, guidance is provided through a series of embodiments that can be used in various combinations. In each example, the examples are listed only as representative groups and should not be construed as exhaustive.

[0064] Example 1

[0065] This embodiment is used to process gel filaments obtained through the extraction process in a solvent spinning process, specifically ultra-high molecular weight polyethylene (UHMWPE) fibers with a molecular weight of 1.5 million to 6 million, to produce UHMWPE fibers with a fineness of 400D. The modification method is as follows:

[0066] (1) Take 45 parts by weight of anhydrous ethanol, 5 parts by weight of coupling agent A171 and 8 parts by weight of 50 nm oleic acid amide, stir and sonicate for 30 min to obtain modified solution.

[0067] (2) Immerse the gel fibers obtained from the extraction process in the modified solution for 4 minutes, and keep the temperature at 80-85℃ during the process.

[0068] (3) The ultra-high molecular weight polyethylene gel filaments that have been soaked are subjected to three-stage thermal stretching and curing at 137.5℃-147.5℃, with a stretching ratio of 18 times, to obtain wear-resistant fibers with a fineness of 400D.

[0069] Example 2-16

[0070] Examples 2-16 are examples in which the oleamide in Example 1 is replaced with solid organic reinforcing materials of similar shape and size and in equal amounts, or liquid organic reinforcing materials, specifically: polycarbonate (Example 2), polytetrafluoroethylene wax micropowder (Example 3), polyethylene glycol (Example 4), erucamide (Example 5), glyceryl oleate (Example 6), wax emulsion (Example 7), polyethylene wax micropowder (Example 8), polyurethane powder (Example 9), silicone powder (Example 10), polyimide powder (Example 11), methyl silicone oil (Example 12), chlorophenyl silicone oil (Example 13), dimethyl silicone oil (Example 14), dibutyl sulfite (Example 15), and toluene phosphate (Example 16); other conditions and modification methods are the same as in Example 1.

[0071] Example 17

[0072] This embodiment is used to process finished ultra-high molecular weight polyethylene (UHMWPE) fibers with a fineness of 400D to obtain wear-resistant fibers; the molecular weight of UHMWPE is 1.5 million to 6 million. The modification method is as follows:

[0073] (1) Take 50 parts by weight of anhydrous ethanol, 8 parts by weight of coupling agent γ-ATPS, and 7 parts by weight of oleic acid amide powder, stir and sonicate for 35 minutes to obtain the modified solution.

[0074] (2) Immerse the finished ultra-high molecular weight polyethylene fiber with a fineness of 400D in the modified solution for 3 minutes, and use ultrasound assistance during the treatment process.

[0075] (3) The ultra-high molecular weight polyethylene fiber filaments that have been soaked are heat-treated and cured at 120℃ to evaporate the organic solvent on the fiber filaments and obtain wear-resistant fiber with a fineness of 400D.

[0076] Example 18

[0077] Compared with Example 1, the only difference is that 5 parts by weight of coupling agent A171 were not added to the modified liquid; other conditions and modification methods are the same as in Example 1; and finally, wear-resistant fibers with a fineness of 400D were obtained.

[0078] Example 19

[0079] This embodiment is used to process gel filaments obtained through the extraction process in a solvent spinning process, specifically ultra-high molecular weight polyethylene (UHMWPE) fibers with a molecular weight of 1.5 million to 6 million, to produce UHMWPE fibers with a fineness of 400D. The modification method is as follows:

[0080] (1) Take 45 parts by weight of anhydrous ethanol, 5 parts by weight of coupling agent A171, 8 parts by weight of 50 nm oleic amide, add 2.0% LAS, stir and sonicate for 30 min to obtain the modified solution.

[0081] (2) Immerse the gel fibers obtained from the extraction process in the modified solution for 4 minutes, and keep the temperature at 80-85℃ during the process.

[0082] (3) The ultra-high molecular weight polyethylene gel filaments that have been soaked are subjected to three-stage thermal stretching and curing at 138℃-147℃, with a stretching ratio of 10 times, to obtain wear-resistant fibers with a fineness of 400D.

[0083] Example 20

[0084] This embodiment is used to process gel fibers obtained by solvent spinning through an extraction process, which are ultra-high molecular weight polyethylene fibers with a molecular weight of 1.5 million to 6 million, to produce wear-resistant fibers with a fineness of 400D.

[0085] The modification methods are as follows:

[0086] (1) Prepare the modified solution according to the method of Example 14, and add 8% nano silica to the modified solution; stir and sonicate for 30 min to obtain the modified solution.

[0087] (2) Immerse the gel fibers obtained from the extraction process in the modified solution for 5 minutes, and keep the temperature at 80-85℃ during the process.

[0088] (3) The ultra-high molecular weight polyethylene gel filaments that have been soaked are subjected to three-stage thermal stretching and curing at 137.5℃-147.5℃, with a stretching ratio of 18 times, to obtain ultra-high molecular weight polyethylene fibers with a fineness of 400D.

[0089] Example 21

[0090] This embodiment is used to process gel filaments obtained through the extraction process in a solvent spinning process, specifically ultra-high molecular weight polyethylene (UHMWPE) fibers with a molecular weight of 1.5 million to 6 million, to produce UHMWPE fibers with a fineness of 400D. The modification method is as follows:

[0091] (1) Take 45 parts by weight of hydrocarbon organic solvent PEGASOL3040, 25 parts by weight of dichloromethane, 5 parts by weight of coupling agent KH-570, 8 parts by weight of 50nm oleic amide, add 2.0% SDBS, stir and sonicate for 30 min to obtain modified solution.

[0092] (2) Immerse the gel fibers obtained from the extraction process in the modified solution for 3.5 min, and keep the temperature at 90-100℃ during the process.

[0093] (3) The ultra-high molecular weight polyethylene gel filaments that have been soaked are subjected to three-stage thermal stretching and curing at 138℃-147℃, with a stretching ratio of 25 times, to obtain wear-resistant fibers with a fineness of 400D.

[0094] Example 22

[0095] Compared with Example 1, the only difference is that 10% by mass of 50nm titanium dioxide is added to the spinning raw material, and after emulsification and uniform mixing, it is spun through a spinneret to obtain gel filaments, and finally abrasion-resistant fibers are obtained.

[0096] Example 23

[0097] Compared with Example 15, the only difference is that 5 parts by weight of coupling agent A171 were not added to the modified liquid; other conditions and modification methods are the same as in Example 15; and finally, wear-resistant fibers with a fineness of 400D were obtained.

[0098] Comparative Example 1

[0099] This comparative example is a finished ultra-high molecular weight polyethylene fiber with a fineness of 400D, prepared using conventional spinning technology, with a molecular weight of 1.5 million to 6 million.

[0100] Comparative Example 2

[0101] This comparative example is based on Example 1, except that oleamide was replaced with 50 nm silica. Other conditions and modification methods were the same as in Example 1, and fibers with a fineness of 400D were obtained.

[0102] Comparative Example 3

[0103] This comparative example is based on Example 1, but with oleamide replaced by 60 nm graphene. Other conditions and modification methods are the same as in Example 1, resulting in fibers with a fineness of 400D.

[0104] Comparative Example 4

[0105] This comparative example is based on Example 17, but without the S3 heat treatment step. All other conditions are the same as in Example 17, and fibers with a fineness of 400D are obtained.

[0106] The UHMWPE fibers prepared by the above methods were subjected to abrasion tests (Flory abrasion tester, pretension 60mN / tex) according to the ASTM D6611 standard, and the strength and modulus were tested according to the GB / T 14344 standard method.

[0107] The test results are shown in Table 1.

[0108] Table 1

[0109]

[0110]

[0111] As can be seen from the examples and comparative examples, the wear resistance of the wear-resistant fiber of the present invention is greatly improved. At the same time, the fineness, strength, and modulus of the fiber are not significantly reduced compared to the unmodified fiber (Comparative Example 1), with performance retention rates all exceeding 88%, generally above 90%. This indicates that the modification of the fiber significantly improves wear resistance, while other fiber properties are not significantly reduced, achieving remarkable progress. Comparative Example 2 uses silica inorganic particles instead of organic reinforcing materials, resulting in limited improvement in wear resistance and a significant difference compared to other examples. Comparative Example 3 uses graphene instead of organic reinforcing materials. Although it has some wear resistance, the fiber performance retention rate is significantly lower, showing a clear difference compared to the organic reinforcing materials. Comparative Example 4, unlike Example 17, did not undergo subsequent heat treatment, resulting in insufficient bonding between the modified layer and the fiber surface, relatively low wear resistance, and a significantly reduced performance retention rate.

[0112] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the technical solutions of the present invention, and are not intended to limit the specific implementation of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the claims of the present invention should be included within the protection scope of the claims of the present invention.

Claims

1. A wear-resistant fiber comprising a fiber matrix, characterized in that, The fiber matrix has a modified layer in at least a portion of its surface, the modified layer comprising an organic reinforcing material, the wear-resistant fiber having a single filament fineness of 0.3D to 10D, a strength of 5cN / dtex to 40cN / dtex, and a modulus of 140cN / dtex to 1400cN / dtex.

2. The wear-resistant fiber-type resin according to claim 1, characterized in that, The organic reinforcing material is selected from one or more organic materials that can produce a lubricating effect on the fiber surface. The organic materials include solid organic materials and / or liquid organic materials. The solid organic materials are selected from one or more of oleamide, polycarbonate, polyethylene wax, polytetrafluoroethylene wax, polyurethane, polyimide, stearamide, vinyl bis-stearamide (EBS), ethylene dioleamide (EBO), erucamide, solid paraffin wax, and organosilicon wear-resistant agents. The liquid organic materials are selected from one or more of wax emulsion, dimethyl silicone oil, liquid paraffin wax, polyethylene glycol, polypropylene glycol, methyl silicone oil, chlorophenyl silicone oil, trifluoropropyl silicone oil, glyceryl oleate, dibutyl sulfite, and toluene phosphate.

3. The wear-resistant fiber according to claim 2, characterized in that, The thickness of the modified layer is 0.1-100 μm, and / or the modified layer accounts for 0.1% to 100% of the total surface area of ​​the fiber matrix, and / or the size of the solid organic reinforcing material is 10 nm-100 μm.

4. The abrasion-resistant fiber according to any one of claims 1-3, characterized in that, The fibers are ultra-high molecular weight polyethylene fibers, aramid fibers, nylon, polyester, aramid sulfone fibers, polyimide fibers, polybenzimidazole fibers, and poly(p-phenylenebenzobisoxazole) fibers.

5. The abrasion-resistant fiber according to any one of claims 1-3, characterized in that, The modified layer also includes a silane coupling agent, specifically one or more of the following: vinyltrichlorosilane, vinyltrimethoxysilane (A171), vinyltriethoxysilane (A151), γ-aminopropyltriethoxysilane (γ-ATPS), γ-methacryloyloxypropyltrimethoxysilane (KH-570), γ-(2,3)epoxy(propoxy)propyltrimethoxysilane (KH-560), γ-glycidoxypropyltrimethoxysilane, γ-aminopropylmethyldiethoxysilane, N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane, N-ethyl-3-trimethoxysilane-2-methylpropylamine, anilinepropyltrimethoxysilane, bis-[3-(triethoxysilane)-propyl]-amine, N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane, and γ-methacryloyloxypropyltrimethoxysilane.

6. The abrasion-resistant fiber according to any one of claims 1-3, characterized in that, The modified layer also contains inorganic reinforcing particles, which are one or more of metal oxides, ultrafine glass microspheres, and carbon fibers; and / or, the reinforcing material is uniformly dispersed in the fiber matrix.

7. A method for preparing abrasion-resistant fibers as described in any one of claims 1-6, characterized in that, Includes the following steps: The fiber is pretreated with a modified liquid, wherein the pretreatment is one or more of soaking, spraying or dotting the fiber with the modified liquid. The pretreated fibers are then subjected to heat treatment, during which the fibers are stretched 0-80 times to obtain the wear-resistant fibers. The modified liquid contains the organic reinforcing material.

8. The method for preparing wear-resistant fibers according to claim 7, characterized in that, The modified solvent is a solvent that does not penetrate the fiber matrix, and / or the modified liquid contains a highly penetrating solvent, which is a solvent that has a strong penetrating effect on the fiber.

9. The method for preparing wear-resistant fibers according to claim 8, characterized in that, The solvent that does not have a penetrating effect is an alcohol, ketone, and / or ether solvent, while the strong penetrating solvent is selected from the organic solvent used in the ultra-high molecular weight polyethylene solvent spinning method, or the extractant used in the extraction process.

10. The method for preparing wear-resistant fiber according to claim 9, characterized in that, The highly penetrating solvent is selected from one or more of the following: decahydronaphthalene, tetrahydronaphthalene, naphthalene, white oil, kerosene, paraffin oil, mineral oil, xylene, toluene, petroleum ether, gasoline, n-hexane, carbon tetrachloride, dichloromethane, haloalkanes, tetrachloroethylene, and hydrocarbon organic solvents.

11. The method for preparing abrasion-resistant fibers according to any one of claims 7-10, characterized in that, The modified layer also includes a silane coupling agent, specifically one or more of the following: vinyltrichlorosilane, vinyltrimethoxysilane (A171), vinyltriethoxysilane (A151), γ-aminopropyltriethoxysilane (γ-ATPS), γ-methacryloyloxypropyltrimethoxysilane (KH-570), γ-(2,3)epoxy(propoxy)propyltrimethoxysilane (KH-560), γ-glycidoxypropyltrimethoxysilane, γ-aminopropylmethyldiethoxysilane, N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane, N-ethyl-3-trimethoxysilane-2-methylpropylamine, anilinepropyltrimethoxysilane, bis-[3-(triethoxysilane)-propyl]-amine, N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane, and γ-methacryloyloxypropyltrimethoxysilane.

12. The method for preparing abrasion-resistant fibers according to claim 11, characterized in that, In the modified liquid, the mass ratio of the solvent without permeation effect, the silane coupling agent, and the organic reinforcing material is 100-40:10-1:10-1, and / or, during the preparation of the modified liquid, at least one of the following methods is used: auxiliary stirring, ultrasonication, and megasonic physical treatment, and / or, the modified liquid further includes a surfactant, and / or, the heat treatment temperature is 80-150℃.

13. The application of an abrasion-resistant fiber as described in any one of claims 1-6, or an abrasion-resistant fiber prepared by the method for preparing an abrasion-resistant fiber as described in any one of claims 7-12, characterized in that, The abrasion-resistant fibers are used in ropes, fishing lines, slings, fishing nets, net cages, ground nets, cargo nets, curtains, kite lines, dental floss, tennis racket strings, canvas, woven fabrics, non-woven fabrics, fabric tapes, battery products, capacitors, pressure vessels, hoses, umbilical cables, automotive components, power transmission belts, building materials, stab-resistant products, cut-resistant products, bulletproof products, skis, helmets, rowboats, canoes, bicycle frames, boat hulls, wing spars, speaker cones, electronic insulation, radomes, sails, geotextiles, automobile rims, bicycle rims, motorcycle rims, automotive interiors, impact panels, aircraft, satellites, radar, cockpits, seats, hockey sticks, baseball bats, tennis rackets, squash rackets, skis, snowboards, surfboards, paddleboards, boat hulls, masts, sails, boats, turbines, clothing, shoes, hats, or medical devices.

14. The application of the abrasion-resistant fiber according to claim 13, characterized in that, The ropes include cables, mooring ropes, trailer ropes, climbing ropes, winch ropes, hoisting ropes, lifting ropes, and traction ropes.

15. A fiber product, characterized in that, The fiber product comprises the abrasion-resistant fiber as described in any one of claims 1-6, or the abrasion-resistant fiber prepared by the method for preparing the abrasion-resistant fiber as described in any one of claims 7-12. The fiber product is selected from ropes, fishing lines, slings, fishing nets, net cages, ground nets, cargo nets, curtains, kite strings, dental floss, tennis racket strings, canvas, woven fabrics, non-woven fabrics, fabric tapes, battery products, capacitors, pressure vessels, hoses, umbilical cables, automotive devices, power transmission belts, building materials, stab-resistant products, cut-resistant products, bulletproof products, skis, helmets, rowboats, canoes, bicycle frames, boat hulls, wing spars, speaker cones, electronic insulation, radomes, sails, automobile rims, bicycle rims, motorcycle rims, automotive interiors, impact panels, aircraft, satellites, radar, cockpits, seats, hockey sticks, baseball bats, tennis rackets, squash rackets, skis, snowboards, surfboards, paddleboards, boat hulls, masts, sails, turbines, clothing, shoes, hats, or medical devices.

16. The fiber product according to claim 15, characterized in that, The ropes include cables, mooring ropes, trailer ropes, climbing ropes, winch ropes, hoisting ropes, lifting ropes, and traction ropes.

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