Outdoor high-wear-resistance waterproof fabric and preparation method thereof

Abstract

The invention discloses an outdoor high-wear-resistance waterproof fabric and a preparation method thereof.The preparation method comprises the following steps that S1, composite fibers are spread on a transmission roller set, a glue groove is formed below one transmission roller, the transmission roller forms a glue dipping roller, and when the composite fibers pass through the glue dipping roller under the traction effect, the composite fibers are immersed in glue liquid in the glue groove to complete glue dipping; s2, drying and compounding a waterproof film and the impregnated composite fiber on a drying roller to obtain unidirectional cloth; s3, orthogonally stacking the two pieces of one-way cloth, enabling the silk surfaces of the two pieces of one-way cloth to be in contact with each other, performing plane pressurization to 8-10MPa, setting the temperature to 115-125 DEG C, and keeping the temperature for 5-10min, so as to obtain the ultrathin high-strength wear-resistant waterproof fabric. The ultra-high molecular weight polyethylene fibers have excellent wear resistance, are further combined with the glue solution through hot melting fusion, are more uniformly distributed in the fabric and can better bear friction and wear of external force, so that the wear resistance of the fabric is improved.

Description

Technical Field

[0001] This invention relates to the field of waterproof fabric technology, and in particular to an outdoor high abrasion-resistant waterproof fabric and its preparation method. Background Technology

[0002] With people's pursuit of a healthy lifestyle and the popularization of outdoor activities, the outdoor sports market has maintained an average annual growth rate of over 10% in the past few years. Among them, the research on waterproof fabrics has always been a hot topic. Waterproof fabric is a new type of textile fabric. Many special industries and occupations require clothing fabrics with waterproof functions. In particular, outdoor activity protective clothing, tents, and backpacks not only need good waterproof functions, but also high strength and abrasion resistance.

[0003] Existing technologies rarely offer effective waterproofing treatments for highly abrasion-resistant fabrics, or only provide simple treatments, resulting in poor actual waterproofing and breathability. Furthermore, current fabrics are often single-functional; even when multi-functional fabric manufacturing processes exist, there are issues with conflicting or diminished properties between different components during multi-functional composite treatments.

[0004] According to Chinese patents with announcement numbers CN210501670U and CN212097817U, the waterproof function of existing waterproof fabrics is achieved through coatings. The use of coatings usually increases the thickness and weight of the fabric. The base material is mostly nylon, polyester, or cotton. Conventional fabric materials cannot simultaneously meet the requirements of tensile strength, tear resistance, and lightweight, so they need to be thickened to ensure the strength requirements of the external environment. In addition, composite material fabrics have poor wear fatigue resistance and are prone to delamination, which is not conducive to long-term repeated folding and use. Summary of the Invention

[0005] To address the problems mentioned in the background section, this invention provides an outdoor high abrasion-resistant waterproof fabric and its preparation method.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A method for preparing an outdoor high abrasion-resistant and waterproof fabric includes the following steps: S1. The composite fiber is spread on the drive roller group, one of which has a glue tank below it to form a glue-impregnating roller. When the composite fiber passes through the glue-impregnating roller under the traction action, the composite fiber is immersed in the glue in the glue tank to complete the glue impregnation. S2. The waterproof membrane and the above-mentioned impregnated composite fibers are dried and laminated on a drying roller to obtain a unidirectional fabric. S3. Two unidirectional fabrics are stacked orthogonally with their filaments in contact with each other. The plane is pressurized to 8-10 MPa, the temperature is set to 115-125℃, and the holding time is 5-10 minutes. During this process, the composite fibers are heated and melted, which enhances the bonding effect with the adhesive. The adhesive is cured, thereby obtaining the ultra-thin, high-strength, wear-resistant, and waterproof fabric. The areal density of the ultra-thin, high-strength, wear-resistant, and waterproof fabric is ≤70 g / m².

[0007] Preferably, the composite fiber includes ultra-high molecular weight polyethylene fiber and modified bamboo fiber, and the mass ratio of ultra-high molecular weight polyethylene fiber to modified bamboo fiber is (6-7):(3-4).

[0008] Preferably, the preparation of modified bamboo fiber includes the following steps: Bamboo fiber is pulverized to 100-200 mesh and then immersed in phosphate buffer containing 0.5-1% cellulase. It is then shaken in a shaker at 180-200 r / min and 35-45℃ for 2-5 hours, filtered, and then immersed in a treatment agent. After stirring and mixing, it is treated with ultraviolet light at 365nm and 50W for 20-30 minutes. 3,4-Dihydroxybenzaldehyde is then added, and the temperature is raised to 60-70℃ for 35-50 minutes. After filtration, it is washed 3-5 times with deionized water and then dried in a vacuum drying oven at 60-70℃ for 8-10 hours to obtain modified bamboo fiber.

[0009] Preferably, the components and their corresponding weight percentages in the treatment agent are 60-75% 1-butyl-3-methylimidazolium acetate ionic liquid, 1-5% nano titanium dioxide, and the remainder is deionized water.

[0010] After being pulverized, bamboo fibers are treated with a phosphate buffer containing cellulase to partially hydrolyze the cellulose, remove impurities, or increase surface roughness for easier subsequent processing. They are then immersed in a treatment agent containing an ionic liquid, nano-TiO2, and water. The ionic liquid acts as a solvent or surface modifier, helping the nano-TiO2 disperse and adhere to the bamboo fiber surface. Under ultraviolet light, the TiO2 generates reactive oxygen species, initiating a free radical reaction on the fiber surface and promoting the reaction with 3,4-dihydroxybenzaldehyde. This aldehyde introduces hydrophobic groups, enhancing the water resistance of the bamboo fiber and its adhesion to the adhesive.

[0011] Preferably, the ultra-high molecular weight polyethylene fiber has a strength of 10 million, a length of 22m, a diameter of 2.2D, a modulus of 1700cN / dtex, a tensile strength of 44cN / dtex, and an elongation at break of 3.5%.

[0012] Preferably, the waterproof membrane is made of polytetrafluoroethylene (PTFE) film, and more preferably, the PTFE film is Gore-Tex: an expanded PTFE film with 1.4 billion pores per square inch, the pore size of which is only one twenty-thousandth the size of a water droplet, but 700 times larger than a water vapor molecule, with a waterproof rating of up to 45,000 mm water pressure and a breathability of up to 13,500 g / m² / 24hrs.

[0013] An outdoor high abrasion-resistant waterproof fabric prepared using a method for preparing outdoor high abrasion-resistant waterproof fabric.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention utilizes composite fibers (ultra-high molecular weight polyethylene fiber and modified bamboo fiber) which, under traction, pass through an impregnation roller and are immersed in a glue bath. The glue penetrates the interior and surface of the composite fibers, and the high molecular weight polymer molecules in the glue undergo physical adsorption and chemical bonding with the functional groups on the surface of the composite fibers. The waterproof membrane and the glue-impregnated composite fibers are then dried and bonded together on a drying roller. During the drying process, the solvent in the glue gradually evaporates, and cross-linking reactions occur between the high molecular weight polymer molecules, forming a three-dimensional network structure that firmly bonds the composite fibers and the waterproof membrane together. The physical adsorption and chemical bonding between the glue, the composite fibers, and the waterproof membrane create a tight, integrated whole, improving the structural stability and strength of the fabric. The bonding of the waterproof membrane and the composite fibers effectively prevents moisture intrusion, giving the fabric excellent waterproof performance.

[0015] 2. The ultra-high molecular weight polyethylene fiber of this invention possesses excellent abrasion resistance. Through hot-melt fusion and further bonding with the adhesive, its distribution in the fabric becomes more uniform, enabling it to better withstand external friction and wear, thereby improving the fabric's abrasion resistance. Simultaneously, through a reasonable manufacturing process, the fabric achieves an areal density ≤70g / ㎡ while ensuring high strength, abrasion resistance, and waterproof performance, realizing ultra-thin fabric design and improving its comfort and practicality. Detailed Implementation

[0016] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Unless otherwise specified, the raw materials used in this invention are all from commercially available conventional products.

[0018] Preparation Example 1 The preparation of modified bamboo fiber includes the following steps: 100g of bamboo fiber was pulverized to 100 mesh and then immersed in 250mL of phosphate buffer containing 0.5% cellulase. The mixture was shaken in a shaker at 180r / min and 35℃ for 2 hours, then filtered. The fiber was then immersed in 500mL of treatment agent and stirred until well mixed. After treatment with ultraviolet light at 365nm and 50W for 20 minutes, 15g of 3,4-dihydroxybenzaldehyde was added, and the mixture was heated to 60℃ and reacted for 35 minutes. The mixture was then filtered, washed three times with deionized water, and dried in a vacuum drying oven at 60℃ for 8 hours to obtain modified bamboo fiber.

[0019] The treatment agent comprises the following components and their corresponding weight percentages: 60% 1-butyl-3-methylimidazolium acetate ionic liquid, 5% nano-titanium dioxide, and the remainder is deionized water.

[0020] Preparation Example 2 The preparation of modified bamboo fiber includes the following steps: 100g of bamboo fiber was pulverized to 150 mesh and then immersed in 250mL of phosphate buffer containing 0.8% cellulase. The mixture was shaken in a shaker at 190r / min and 40℃ for 3 hours, then filtered. The fiber was then immersed in 500mL of treatment agent and stirred until well mixed. After treatment with ultraviolet light at 365nm and 50W for 25 minutes, 18g of 3,4-dihydroxybenzaldehyde was added, and the mixture was heated to 65℃ and reacted for 45 minutes. The mixture was then filtered, washed four times with deionized water, and dried in a vacuum drying oven at 65℃ for 9 hours to obtain modified bamboo fiber.

[0021] The components and their corresponding weight percentages in the treatment agent are 70% 1-butyl-3-methylimidazolium acetate ionic liquid, 5% nano titanium dioxide, and the remainder is deionized water.

[0022] Preparation Example 3 The preparation of modified bamboo fiber includes the following steps: 100g of bamboo fiber was pulverized to 200 mesh and then immersed in 250mL of phosphate buffer containing 1% cellulase. The mixture was shaken in a shaker at 200r / min and 45℃ for 5 hours, then filtered. The fiber was then immersed in 500mL of treatment agent and stirred until well mixed. After treatment with ultraviolet light at 365nm and 50W for 30 minutes, 20g of 3,4-dihydroxybenzaldehyde was added, and the mixture was heated to 70℃ and reacted for 50 minutes. The mixture was then filtered, washed 5 times with deionized water, and dried in a vacuum drying oven at 70℃ for 10 hours to obtain modified bamboo fiber.

[0023] The components and their corresponding weight percentages in the treatment agent are 75% 1-butyl-3-methylimidazolium acetate ionic liquid, 2% nano titanium dioxide, and the remainder is deionized water. Example

[0024] A method for preparing an outdoor high abrasion-resistant and waterproof fabric includes the following steps: S1. Spread 10kg of composite fiber on the drive roller group. One of the drive rollers has a glue tank below it and forms a glue-impregnating roller. When the composite fiber passes through the glue-impregnating roller under the traction action, the composite fiber is immersed in the glue solution in the glue tank to complete the glue impregnation. The glue solution is a 1:1 diluted water-based polyurethane glue solution. S2. The waterproof membrane and the above-mentioned impregnated composite fibers are dried and laminated on a drying roller to obtain a unidirectional fabric. S3. Two unidirectional fabrics are stacked orthogonally with their filaments in contact with each other. The plane is pressurized to 8MPa, the temperature is set to 115℃, and the holding time is 5min. During this process, the composite fibers are heated and melted, which enhances the bonding effect with the adhesive. The adhesive is cured, thereby obtaining the ultra-thin, high-strength, wear-resistant, and waterproof fabric. The areal density of the ultra-thin, high-strength, wear-resistant, and waterproof fabric is ≤70g / ㎡.

[0025] The composite fiber comprises ultra-high molecular weight polyethylene fiber and modified bamboo fiber prepared in Preparation Example 1, wherein the mass ratio of ultra-high molecular weight polyethylene fiber to modified bamboo fiber is 6:4.

[0026] The ultra-high molecular weight polyethylene fiber has a strength of 10 million, a length of 22m, a diameter of 2.2D, a modulus of 1700cN / dtex, a tensile strength of 44cN / dtex, and an elongation at break of 3.5%.

[0027] The waterproof membrane is made of polytetrafluoroethylene (PTFE) film, specifically Gore-Tex: an expanded PTFE film with 1.4 billion pores per square inch. The pore size is only one twenty-thousandth the size of a water droplet, but 700 times larger than a water vapor molecule. It has a waterproof rating of up to 45,000 mm water pressure and a breathability of up to 13,500 g / m² / 24hrs. Example

[0028] A method for preparing an outdoor high abrasion-resistant and waterproof fabric includes the following steps: S1. Spread 10kg of composite fiber on the drive roller group. One of the drive rollers has a glue tank below it and forms a glue-impregnating roller. When the composite fiber passes through the glue-impregnating roller under the traction action, the composite fiber is immersed in the glue solution in the glue tank to complete the glue impregnation. The glue solution is a 1:1 diluted water-based polyurethane glue solution. S2. The waterproof membrane and the above-mentioned impregnated composite fibers are dried and laminated on a drying roller to obtain a unidirectional fabric. S3. Two unidirectional fabrics are stacked orthogonally with their filaments in contact with each other. The plane is pressurized to 9MPa, the temperature is set to 120℃, and the holding time is 8min. During this process, the composite fibers are heated and melted, which enhances the bonding effect with the adhesive. The adhesive is cured, thereby obtaining the ultra-thin, high-strength, wear-resistant, and waterproof fabric. The areal density of the ultra-thin, high-strength, wear-resistant, and waterproof fabric is ≤70g / ㎡.

[0029] The composite fiber comprises ultra-high molecular weight polyethylene fiber and modified bamboo fiber prepared in Preparation Example 2, wherein the mass ratio of ultra-high molecular weight polyethylene fiber to modified bamboo fiber is 7:3.

[0030] The ultra-high molecular weight polyethylene fiber has a strength of 10 million, a length of 22m, a diameter of 2.2D, a modulus of 1700cN / dtex, a tensile strength of 44cN / dtex, and an elongation at break of 3.5%.

[0031] The waterproof membrane is made of polytetrafluoroethylene (PTFE) film, specifically Gore-Tex: an expanded PTFE film with 1.4 billion pores per square inch. The pore size is only one twenty-thousandth the size of a water droplet, but 700 times larger than a water vapor molecule. It has a waterproof rating of up to 45,000 mm water pressure and a breathability of up to 13,500 g / m² / 24hrs. Example

[0032] A method for preparing an outdoor high abrasion-resistant and waterproof fabric includes the following steps: S1. Spread 10kg of composite fiber on the drive roller group. One of the drive rollers has a glue tank below it and forms a glue-impregnating roller. When the composite fiber passes through the glue-impregnating roller under the traction action, the composite fiber is immersed in the glue solution in the glue tank to complete the glue impregnation. The glue solution is a 1:1 diluted water-based polyurethane glue solution. S2. The waterproof membrane and the above-mentioned impregnated composite fibers are dried and laminated on a drying roller to obtain a unidirectional fabric. S3. Two unidirectional fabrics are stacked orthogonally with their filaments in contact with each other. The plane is pressurized to 10MPa, the temperature is set to 125℃, and the holding time is 10min. During this process, the composite fibers are heated and melted, which enhances the bonding effect with the adhesive. The adhesive is cured, thereby obtaining the ultra-thin, high-strength, wear-resistant, and waterproof fabric. The areal density of the ultra-thin, high-strength, wear-resistant, and waterproof fabric is ≤70g / ㎡.

[0033] The composite fiber includes ultra-high molecular weight polyethylene fiber and modified bamboo fiber as described in Preparation Example 3, with a mass ratio of ultra-high molecular weight polyethylene fiber to modified bamboo fiber of 7:4.

[0034] The ultra-high molecular weight polyethylene fiber has a strength of 10 million, a length of 22m, a diameter of 2.2D, a modulus of 1700cN / dtex, a tensile strength of 44cN / dtex, and an elongation at break of 3.5%.

[0035] The waterproof membrane is made of polytetrafluoroethylene (PTFE) film, specifically Gore-Tex: an expanded PTFE film with 1.4 billion pores per square inch. The pore size is only one twenty-thousandth the size of a water droplet, but 700 times larger than a water vapor molecule. It has a waterproof rating of up to 45,000 mm water pressure and a breathability of up to 13,500 g / m² / 24hrs. Example

[0036] A method for preparing an outdoor high abrasion-resistant and waterproof fabric includes the following steps: S1. Spread 10kg of composite fiber on the drive roller group. One of the drive rollers has a glue tank below it and forms a glue-impregnating roller. When the composite fiber passes through the glue-impregnating roller under the traction action, the composite fiber is immersed in the glue solution in the glue tank to complete the glue impregnation. The glue solution is a 1:1 diluted water-based polyurethane glue solution. S2. The waterproof membrane and the above-mentioned impregnated composite fibers are dried and laminated on a drying roller to obtain a unidirectional fabric. S3. Two unidirectional fabrics are stacked orthogonally with their filaments in contact with each other. The plane is pressurized to 8MPa, the temperature is set to 115℃, and the holding time is 5min. During this process, the composite fibers are heated and melted, which enhances the bonding effect with the adhesive. The adhesive is cured, thereby obtaining the ultra-thin, high-strength, wear-resistant, and waterproof fabric. The areal density of the ultra-thin, high-strength, wear-resistant, and waterproof fabric is ≤70g / ㎡.

[0037] The composite fiber comprises ultra-high molecular weight polyethylene fiber and modified bamboo fiber prepared in Preparation Example 2, wherein the mass ratio of ultra-high molecular weight polyethylene fiber to modified bamboo fiber is 6:4.

[0038] The ultra-high molecular weight polyethylene fiber has a strength of 10 million, a length of 22m, a diameter of 2.2D, a modulus of 1700cN / dtex, a tensile strength of 44cN / dtex, and an elongation at break of 3.5%.

[0039] The waterproof membrane is made of polytetrafluoroethylene (PTFE) film, specifically Gore-Tex: an expanded PTFE film with 1.4 billion pores per square inch. The pore size is only one twenty-thousandth the size of a water droplet, but 700 times larger than a water vapor molecule. It has a waterproof rating of up to 45,000 mm water pressure and a breathability of up to 13,500 g / m² / 24hrs. Example

[0040] A method for preparing an outdoor high abrasion-resistant and waterproof fabric includes the following steps: S1. Spread 10kg of composite fiber on the drive roller group. One of the drive rollers has a glue tank below it and forms a glue-impregnating roller. When the composite fiber passes through the glue-impregnating roller under the traction action, the composite fiber is immersed in the glue solution in the glue tank to complete the glue impregnation. The glue solution is a 1:1 diluted water-based polyurethane glue solution. S2. The waterproof membrane and the above-mentioned impregnated composite fibers are dried and laminated on a drying roller to obtain a unidirectional fabric. S3. Two unidirectional fabrics are stacked orthogonally with their filaments in contact with each other. The plane is pressurized to 8MPa, the temperature is set to 115℃, and the holding time is 5min. During this process, the composite fibers are heated and melted, which enhances the bonding effect with the adhesive. The adhesive is cured, thereby obtaining the ultra-thin, high-strength, wear-resistant, and waterproof fabric. The areal density of the ultra-thin, high-strength, wear-resistant, and waterproof fabric is ≤70g / ㎡.

[0041] The composite fiber comprises ultra-high molecular weight polyethylene fiber and modified bamboo fiber prepared in Preparation Example 3, wherein the mass ratio of ultra-high molecular weight polyethylene fiber to modified bamboo fiber is 6:4.

[0042] The ultra-high molecular weight polyethylene fiber has a strength of 10 million, a length of 22m, a diameter of 2.2D, a modulus of 1700cN / dtex, a tensile strength of 44cN / dtex, and an elongation at break of 3.5%.

[0043] The waterproof membrane is made of polytetrafluoroethylene (PTFE) film, specifically Gore-Tex: an expanded PTFE film with 1.4 billion pores per square inch. The pore size is only one twenty-thousandth the size of a water droplet, but 700 times larger than a water vapor molecule. It has a waterproof rating of up to 45,000 mm water pressure and a breathability of up to 13,500 g / m² / 24hrs. Example

[0044] A method for preparing an outdoor high abrasion-resistant and waterproof fabric includes the following steps: S1. Spread 10kg of composite fiber on the drive roller group. One of the drive rollers has a glue tank below it and forms a glue-impregnating roller. When the composite fiber passes through the glue-impregnating roller under the traction action, the composite fiber is immersed in the glue solution in the glue tank to complete the glue impregnation. The glue solution is a 1:1 diluted water-based polyurethane glue solution. S2. The waterproof membrane and the above-mentioned impregnated composite fibers are dried and laminated on a drying roller to obtain a unidirectional fabric. S3. Two unidirectional fabrics are stacked orthogonally with their filaments in contact with each other. The plane is pressurized to 9MPa, the temperature is set to 120℃, and the holding time is 8min. During this process, the composite fibers are heated and melted, which enhances the bonding effect with the adhesive. The adhesive is cured, thereby obtaining the ultra-thin, high-strength, wear-resistant, and waterproof fabric. The areal density of the ultra-thin, high-strength, wear-resistant, and waterproof fabric is ≤70g / ㎡.

[0045] The composite fiber comprises ultra-high molecular weight polyethylene fiber and modified bamboo fiber prepared in Preparation Example 1, wherein the mass ratio of ultra-high molecular weight polyethylene fiber to modified bamboo fiber is 7:3.

[0046] The ultra-high molecular weight polyethylene fiber has a strength of 10 million, a length of 22m, a diameter of 2.2D, a modulus of 1700cN / dtex, a tensile strength of 44cN / dtex, and an elongation at break of 3.5%.

[0047] The waterproof membrane is made of polytetrafluoroethylene (PTFE) film, specifically Gore-Tex: an expanded PTFE film with 1.4 billion pores per square inch. The pore size is only one twenty-thousandth the size of a water droplet, but 700 times larger than a water vapor molecule. It has a waterproof rating of up to 45,000 mm water pressure and a breathability of up to 13,500 g / m² / 24hrs. Example

[0048] A method for preparing an outdoor high abrasion-resistant and waterproof fabric includes the following steps: S1. Spread 10kg of composite fiber on the drive roller group. One of the drive rollers has a glue tank below it and forms a glue-impregnating roller. When the composite fiber passes through the glue-impregnating roller under the traction action, the composite fiber is immersed in the glue solution in the glue tank to complete the glue impregnation. The glue solution is a 1:1 diluted water-based polyurethane glue solution. S2. The waterproof membrane and the above-mentioned impregnated composite fibers are dried and laminated on a drying roller to obtain a unidirectional fabric. S3. Two unidirectional fabrics are stacked orthogonally with their filaments in contact with each other. The plane is pressurized to 9MPa, the temperature is set to 120℃, and the holding time is 8min. During this process, the composite fibers are heated and melted, which enhances the bonding effect with the adhesive. The adhesive is cured, thereby obtaining the ultra-thin, high-strength, wear-resistant, and waterproof fabric. The areal density of the ultra-thin, high-strength, wear-resistant, and waterproof fabric is ≤70g / ㎡.

[0049] The composite fiber comprises ultra-high molecular weight polyethylene fiber and modified bamboo fiber prepared in Preparation Example 3, wherein the mass ratio of ultra-high molecular weight polyethylene fiber to modified bamboo fiber is 7:3.

[0050] The ultra-high molecular weight polyethylene fiber has a strength of 10 million, a length of 22m, a diameter of 2.2D, a modulus of 1700cN / dtex, a tensile strength of 44cN / dtex, and an elongation at break of 3.5%.

[0051] The waterproof membrane is made of polytetrafluoroethylene (PTFE) film, specifically Gore-Tex: an expanded PTFE film with 1.4 billion pores per square inch. The pore size is only one twenty-thousandth the size of a water droplet, but 700 times larger than a water vapor molecule. It has a waterproof rating of up to 45,000 mm water pressure and a breathability of up to 13,500 g / m² / 24hrs. Example

[0052] A method for preparing an outdoor high abrasion-resistant and waterproof fabric includes the following steps: S1. Spread 10kg of composite fiber on the drive roller group. One of the drive rollers has a glue tank below it and forms a glue-impregnating roller. When the composite fiber passes through the glue-impregnating roller under the traction action, the composite fiber is immersed in the glue solution in the glue tank to complete the glue impregnation. The glue solution is a 1:1 diluted water-based polyurethane glue solution. S2. The waterproof membrane and the above-mentioned impregnated composite fibers are dried and laminated on a drying roller to obtain a unidirectional fabric. S3. Two unidirectional fabrics are stacked orthogonally with their filaments in contact with each other. The plane is pressurized to 10MPa, the temperature is set to 125℃, and the holding time is 10min. During this process, the composite fibers are heated and melted, which enhances the bonding effect with the adhesive. The adhesive is cured, thereby obtaining the ultra-thin, high-strength, wear-resistant, and waterproof fabric. The areal density of the ultra-thin, high-strength, wear-resistant, and waterproof fabric is ≤70g / ㎡.

[0053] The composite fiber includes ultra-high molecular weight polyethylene fiber and modified bamboo fiber as described in Preparation Example 1, with a mass ratio of ultra-high molecular weight polyethylene fiber to modified bamboo fiber of 7:4.

[0054] The ultra-high molecular weight polyethylene fiber has a strength of 10 million, a length of 22m, a diameter of 2.2D, a modulus of 1700cN / dtex, a tensile strength of 44cN / dtex, and an elongation at break of 3.5%.

[0055] The waterproof membrane is made of polytetrafluoroethylene (PTFE) film, specifically Gore-Tex: an expanded PTFE film with 1.4 billion pores per square inch. The pore size is only one twenty-thousandth the size of a water droplet, but 700 times larger than a water vapor molecule. It has a waterproof rating of up to 45,000 mm water pressure and a breathability of up to 13,500 g / m² / 24hrs. Example

[0056] A method for preparing an outdoor high abrasion-resistant and waterproof fabric includes the following steps: S1. Spread 10kg of composite fiber on the drive roller group. One of the drive rollers has a glue tank below it and forms a glue-impregnating roller. When the composite fiber passes through the glue-impregnating roller under the traction action, the composite fiber is immersed in the glue solution in the glue tank to complete the glue impregnation. The glue solution is a 1:1 diluted water-based polyurethane glue solution. S2. The waterproof membrane and the above-mentioned impregnated composite fibers are dried and laminated on a drying roller to obtain a unidirectional fabric. S3. Two unidirectional fabrics are stacked orthogonally with their filaments in contact with each other. The plane is pressurized to 10MPa, the temperature is set to 125℃, and the holding time is 10min. During this process, the composite fibers are heated and melted, which enhances the bonding effect with the adhesive. The adhesive is cured, thereby obtaining the ultra-thin, high-strength, wear-resistant, and waterproof fabric. The areal density of the ultra-thin, high-strength, wear-resistant, and waterproof fabric is ≤70g / ㎡.

[0057] The composite fiber includes ultra-high molecular weight polyethylene fiber and modified bamboo fiber as described in Preparation Example 2, with a mass ratio of ultra-high molecular weight polyethylene fiber to modified bamboo fiber of 7:4.

[0058] The ultra-high molecular weight polyethylene fiber has a strength of 10 million, a length of 22m, a diameter of 2.2D, a modulus of 1700cN / dtex, a tensile strength of 44cN / dtex, and an elongation at break of 3.5%.

[0059] The waterproof membrane is made of polytetrafluoroethylene (PTFE) film, specifically Gore-Tex: an expanded PTFE film with 1.4 billion pores per square inch. The pore size is only one twenty-thousandth the size of a water droplet, but 700 times larger than a water vapor molecule. It has a waterproof rating of up to 45,000 mm water pressure and a breathability of up to 13,500 g / m² / 24hrs.

[0060] Comparative Example 1 The difference between this comparative example and Example 1 is that no modified bamboo fiber is added.

[0061] Comparative Example 2 The difference between this comparative example and Example 1 is that the modified bamboo fiber prepared in Example 1 was replaced with ordinary commercially available bamboo fiber, which was purchased from Yaoyang Mineral Products Processing Plant in Lingshou County.

[0062] Comparative Example 3 The difference between this comparative example and Example 1 is that the polytetrafluoroethylene film is replaced with a polyethylene film, which was purchased from Jinzhiyang (Guangzhou) New Materials Co., Ltd.

[0063] Performance tests were conducted on Examples 1-9 and Comparative Examples 1-3, and the results are shown in Table 1: Abrasion resistance test: Referring to GB / T21196.1-2007, the sample was ground 50 times using a Martindale abrasion tester. The mass of the sample before and after grinding was tested, and the mass reduction rate was calculated. Waterproof performance test: Refer to GB / T 4744-2013, use a water permeability tester to test, and record the hydrostatic pressure value when the third water droplet emerges.

[0064] Table 1

[0065] In summary, the high abrasion-resistant and waterproof fabrics prepared in Examples 1-9 have better abrasion resistance and waterproof performance compared to Comparative Examples 1-3. This indicates that the composite fiber made of ultra-high molecular weight polyethylene fiber and modified bamboo fiber plays an effective synergistic role in the preparation of the high abrasion-resistant and waterproof fabric, improving the structural stability and strength of the fabric, thereby enhancing the overall abrasion resistance and waterproof performance of the fabric.

[0066] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A method for preparing an outdoor high abrasion-resistant and waterproof fabric, characterized in that, Includes the following steps: S1. The composite fiber is spread on the drive roller group, one of which has a glue tank below it to form a glue-impregnating roller. When the composite fiber passes through the glue-impregnating roller under the traction action, the composite fiber is immersed in the glue in the glue tank to complete the glue impregnation. S2. The waterproof membrane and the above-mentioned impregnated composite fibers are dried and laminated on a drying roller to obtain a unidirectional fabric. S3. Two unidirectional fabrics are stacked orthogonally, with the filaments of the two unidirectional fabrics in contact with each other. The plane is pressed to 8-10MPa, the temperature is set to 115-125℃, and the holding time is 5-10min, thereby obtaining the ultra-thin, high-strength, wear-resistant, and waterproof fabric. The areal density of the ultra-thin, high-strength, wear-resistant, and waterproof fabric is ≤70g / ㎡.

2. The method for preparing an outdoor high abrasion-resistant waterproof fabric according to claim 1, characterized in that: The composite fiber includes ultra-high molecular weight polyethylene fiber and modified bamboo fiber, with a mass ratio of (6-7):(3-4).

3. The method for preparing an outdoor high abrasion-resistant waterproof fabric according to claim 1, characterized in that, The method for preparing the modified bamboo fiber includes the following steps: Bamboo fiber is pulverized to 100-200 mesh and then immersed in phosphate buffer solution. It is then shaken in a shaker at 180-200 r / min and 35-45℃ for 2-5 hours, filtered, and then immersed in a treatment agent. After stirring and mixing, it is treated with ultraviolet light at 365nm and 50W for 20-30 minutes. 3,4-Dihydroxybenzaldehyde is then added, and the temperature is raised to 60-70℃ for 35-50 minutes. After filtration, it is washed 3-5 times with deionized water and then dried in a vacuum drying oven to obtain modified bamboo fiber.

4. The method for preparing an outdoor high abrasion-resistant waterproof fabric according to claim 3, characterized in that: The treatment agent comprises the following components and their corresponding weight percentages: 60-75% 1-butyl-3-methylimidazolium acetate ionic liquid, 1-5% nano-titanium dioxide, and the remainder is deionized water.

5. The method for preparing an outdoor high abrasion-resistant waterproof fabric according to claim 2, characterized in that: The ultra-high molecular weight polyethylene fiber has a strength of 10 million, a length of 22m, a diameter of 2.2D, a modulus of 1700cN / dtex, a tensile strength of 44cN / dtex, and an elongation at break of 3.5%.

6. The method for preparing an outdoor high abrasion-resistant waterproof fabric according to claim 1, characterized in that: The waterproof membrane is made of polytetrafluoroethylene film.

7. The method for preparing an outdoor high abrasion-resistant waterproof fabric according to claim 6, characterized in that: The polytetrafluoroethylene film is Gore-Tex: an expanded polytetrafluoroethylene film with 1.4 billion pores per square inch. The pore size is only one twenty-thousandth the size of a water droplet, but 700 times larger than a water vapor molecule. It has a waterproof rating of up to 45,000 mm water pressure and an air permeability of up to 13,500 g / m² / 24hrs.

8. The method for preparing an outdoor high abrasion-resistant waterproof fabric according to claim 3, characterized in that: The vacuum drying oven is controlled under the following conditions: drying at 60-70℃ for 8-10 hours.

9. The method for preparing an outdoor high abrasion-resistant waterproof fabric according to claim 3, characterized in that: The phosphate buffer solution contains 0.5-1% cellulase.

10. An outdoor high abrasion-resistant waterproof fabric prepared by a method for preparing outdoor high abrasion-resistant waterproof fabric.

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