Waterproof glass fiber cloth and preparation method thereof

Abstract

The invention relates to the related technical field of fiber cloth, and discloses waterproof glass fiber cloth and a preparation method thereof.The waterproof glass fiber cloth comprises a glass fiber wall cloth body and waterproof and fire-resistant coatings coated on the two side faces of the glass fiber wall cloth body, and the waterproof and fire-resistant coatings are mainly composed of biomass glue and waterproof and fire-resistant compositions according to the weight ratio of (2-3): 7. According to the invention, reasonable raw materials and proportions are selected, and the raw materials have synergistic effects and supplement each other, so that the material has the characteristics of relatively strong water resistance, wear resistance, corrosion resistance, aging resistance and permeation resistance, and is high in mechanical strength, and the service life of the product is prolonged; the glass fiber cloth produced by the invention is smooth in appearance and uniform and consistent in color, can be well suitable for various post-processing and manufacturing processes, is simple in preparation method and low in equipment requirement, can meet the requirements of continuous industrial production, and also adopts preferably compounded biomass glue to replace formaldehyde-containing colloid.

Description

Technical Field

[0001] The invention relates to the technical field related to fiber cloth, in particular to a waterproof glass fiber cloth and a preparation method thereof. Background Art

[0002] Glass fiber is an inorganic non-metallic material with excellent performance. Its components are silicon dioxide, aluminum oxide, calcium oxide, boron oxide, magnesium oxide and sodium oxide. It is made of glass balls or waste glass as raw materials, and is processed through high-temperature melting, drawing, winding, weaving and other processes to form various products. The diameter of glass fiber monofilaments ranges from a few microns to more than 20 microns, which is equivalent to 1 / 20 to 1 / 5 of a hair. Each bundle of fiber strands consists of hundreds or even thousands of monofilaments.

[0003] Glass fiber is a very good metal substitute material. It has broad application prospects in the fields of construction, shipbuilding, chemical pipelines, automobiles, aviation, wind power generation, etc., and its application fields are still expanding. The global market space is huge. Glass fiber has many advantages such as good insulation, strong heat resistance, good corrosion resistance and high mechanical strength. However, glass fiber material has a fatal disadvantage. It is not waterproof. After absorbing water on rainy days, its own weight increases. In addition, the water is difficult to volatilize in a short period of time, and the wet part is prone to corrosion. In order to solve this kind of problem, a waterproof glass fiber cloth and its preparation method are proposed. Summary of the invention

[0004] The present invention provides a waterproof glass fiber cloth and a preparation method thereof, which solves the problems in the above-mentioned background technology.

[0005] The present invention solves the technical problem by adopting the following technical solutions:

[0006] A waterproof glass fiber cloth comprises a glass fiber wall cloth body and a waterproof and fire-resistant coating coated on both sides of the glass fiber wall cloth body, wherein the waterproof and fire-resistant coating is mainly composed of a biomass glue and a waterproof and fire-resistant composition in a weight ratio of (2-3):7, wherein the biomass glue is a mixture of tamarind gum, guar gum and schisandra chinensis extract; and the waterproof and fire-resistant composition comprises the following raw materials in parts by weight: 35-45 parts of glass fiber plain weave cloth, 3-7 parts of epoxy modified silicone resin, 6-15 parts of modified polyurethane, and 0.5-10 parts of ricinoleic acid. 0.8 parts, ethylene bisstearamide 1-3 parts, sodium bentonite 8-13 parts, impact modifier 1-3 parts, gum arabic powder 0.7-2.7 parts, coupling agent 3-5 parts, antioxidant 2-5 parts, surfactant 3-5 parts, dibutyl phthalate 3-5 parts, zinc stearate 1-3 parts, ethylene glycol 10-15 parts, polyvinyl alcohol 8-12 parts, dimethyl carbonate 10-15 parts, porous glass microspheres 2-5 parts, calcium stearate 3-8 parts, inorganic flame retardant 0.5-2 parts and water 30-60 parts.

[0007] Preferably, the biomass gum is prepared by mixing tamarind gum, guar gum and Schisandra chinensis extract in a weight ratio of 1:(3-5):(2-3).

[0008] Preferably, the thickness of the fiberglass wall cloth body is 1-5 mm, and the thickness of the waterproof and fire-resistant coating on any side of the fiberglass wall cloth body is 0.3-0.8 mm.

[0009] Preferably, the waterproof and fire-resistant coating is mainly composed of biomass glue and a waterproof and fire-resistant composition in a weight ratio of 2.33:7.

[0010] Preferably, the waterproof and fire-resistant composition is mainly composed of the following raw materials in parts by weight: 12 parts of ethylene glycol, 15 parts of polyvinyl alcohol, 12 parts of dimethyl carbonate, 4 parts of porous glass beads, 6 parts of calcium stearate, 1.3 parts of inorganic flame retardant and 48 parts of water.

[0011] Preferably, the glass fiber is an alkali-free glass fiber, the glass fiber diameter is 15 to 18 μm, and the glass fiber density is 2.5 to 2.8 g / cm 3 .

[0012] Preferably, the preparation method of the modified polyurethane is as follows: toluene diisocyanate TDI, polyether N220, polyether N330 and terminal hydroxypropyl silicone oil in a weight ratio of 2:5:5:1 are mixed, 0.05-0.1 parts of dibutyltin dilaurate are added, and the mixture is reacted at 90-110°C for 2-3 hours to obtain a prepolymer of terminal hydroxypropyl silicone oil modified polyurethane, 50 parts of the prepolymer are taken, and the mixture is mixed with montmorillonite, curing agent DMTDA and polyether N330 in a weight ratio of 1-3:3.5-4:2-3, stirred at a speed of 600-800 r / min for 30-50 minutes, and placed in an oven at a constant temperature of 90°C for 10 hours to obtain a silicone / montmorillonite composite modified polyurethane.

[0013] A method for preparing a waterproof glass fiber cloth comprises the following steps:

[0014] S1: Preparation of amide dispersion: Add a formula amount of gum arabic powder into water while stirring, mix stearic acid and castor oil and add them, mix well, add the above ethylene bisstearamide, stir well, and obtain amide dispersion;

[0015] S2: Preparation of impregnation liquid: epoxy-modified silicone resin, modified polyurethane, sodium bentonite, impact modifier, coupling agent, antioxidant, surfactant, dibutyl phthalate, and zinc stearate are mixed uniformly according to weight proportions, and then added into the amide dispersion obtained in S1;

[0016] S3: Treating glass fiber cloth: Put the glass fiber plain cloth into an acid leaching tank, add 0.3-0.5 mol / L hydrochloric acid aqueous solution into the acid leaching tank, the temperature of the hydrochloric acid aqueous solution is 80-90°C, soak for half an hour, take out the glass fiber plain cloth and wash it with clean water until the surface of the glass fiber cloth is neutral, then put the glass fiber plain cloth into the oven in a continuous manner, control the oven temperature to 200-300 degrees Celsius, maintain the speed of 20-30m / min, and then cool it naturally to room temperature;

[0017] S4: impregnation and drying: the glass fiber plain weave cloth treated in S3 is impregnated into an impregnation tank, which is filled with the impregnation solution obtained in S2, and the glass fiber plain weave cloth is passed through the impregnation tank at a uniform speed, and then sent to a curing tank for curing for half an hour, so that the surface of the glass fiber layer is covered with a corrosion-resistant resin layer; the completely cured cloth is ultrasonically cured for 5 to 8 minutes, sent to an oven for drying, and naturally cooled to room temperature;

[0018] S5: Rolling and packaging: ultrasonically treat the treated glass fiber plain weave fabric for 5 to 8 minutes and roll it up to obtain the finished product.

[0019] The advantages and positive effects of the invention are: reasonable raw materials and proportions are selected, various raw materials work synergistically and complement each other, have strong waterproof, wear-resistant, corrosion-resistant, aging-resistant and anti-penetration characteristics, high mechanical strength, and increase the service life of the product; the glass fiber cloth produced by the invention has a smooth appearance and uniform color, can be well applied to various post-processing manufacturing processes, and the preparation method is simple, the equipment requirements are small, and the needs of continuous industrial production can be met. The formaldehyde-containing colloid is replaced by a preferred compounded biomass gum, wherein guar gum has a main bonding effect, tamarind gum assists guar gum in playing a gluing effect, and improves the overall film-forming property, water retention and corrosion resistance of the biomass gum, and the southern schisandra chinensis extract improves the antiseptic property of the biomass gum. The three are screened through multiple tests to obtain the optimal compounding ratio, and after mixing, the viscosity is good, the product is durable, and it is not easy to crack and fall off. DETAILED DESCRIPTION

[0020] The present invention will now be described in further detail.

[0021] The embodiments of the present invention are further described below:

[0022] Glass fiber is an inorganic non-metallic material with excellent performance. Its components are silicon dioxide, aluminum oxide, calcium oxide, boron oxide, magnesium oxide and sodium oxide. It is made of glass balls or waste glass as raw materials, and is processed through high-temperature melting, drawing, winding, weaving and other processes to form various products. The diameter of glass fiber monofilaments ranges from a few microns to more than 20 microns, which is equivalent to 1 / 20 to 1 / 5 of a hair. Each bundle of fiber raw yarns consists of hundreds or even thousands of monofilaments. Glass fiber is a very good metal substitute material. It has broad application prospects in the fields of construction, ships, chemical pipelines, automobiles, aviation, wind power generation, etc., and its application fields are still expanding. The global market space is huge. Glass fiber has many advantages such as good insulation, strong heat resistance, good corrosion resistance and high mechanical strength. However, the glass fiber material has a fatal disadvantage, that is, it is not waterproof. After absorbing water on rainy days, its own weight increases, and the water is difficult to volatilize in a short period of time, and the wet part is easy to cause corrosion. In order to solve such problems, a waterproof glass fiber cloth and a preparation method thereof are proposed, comprising a glass fiber wall cloth body and a waterproof and fire-resistant coating coated on both sides of the glass fiber wall cloth body, wherein the waterproof and fire-resistant coating is mainly composed of biomass glue and a waterproof and fire-resistant composition in a weight ratio of (2-3):7, and the biomass glue is composed of tamarind gum, guar gum and southern schisandra chinensis. The waterproof and fire-resistant composition comprises the following raw materials in parts by weight: 35-45 parts of glass fiber plain weave cloth, 3-7 parts of epoxy modified silicone resin, 6-15 parts of modified polyurethane, 0.5-0.8 parts of castor oil acid, 1-3 parts of ethylene bis stearamide, 8-13 parts of sodium bentonite, 1-3 parts of impact modifier, 0.7-2.7 parts of gum arabic powder, 3-5 parts of coupling agent, 2-5 parts of antioxidant, 3-5 parts of surfactant, 3-5 parts of dibutyl phthalate, 1-3 parts of zinc stearate. 3 parts, ethylene glycol 10-15 parts, polyvinyl alcohol 8-12 parts, dimethyl carbonate 10-15 parts, porous glass microspheres 2-5 parts, calcium stearate 3-8 parts, inorganic flame retardant 0.5-2 parts and water 30-60 parts; reasonable raw materials and proportions are selected, and the raw materials work synergistically and complement each other, and have strong waterproof, wear-resistant, corrosion-resistant, aging-resistant and anti-penetration characteristics, high mechanical strength, and increased product life; the glass fiber cloth produced by the invention has a smooth appearance and uniform color, and can be well applied to various The invention discloses a post-processing manufacturing process, and the preparation method is simple, and the equipment requirement is small, which can meet the needs of continuous industrial production. The invention also adopts a preferred compounded biomass gum to replace the formaldehyde-containing colloid, wherein guar gum has a main bonding effect, tamarind gum assists guar gum in gluing, and improves the overall film-forming property, water retention and corrosion resistance of the biomass gum, and the Schisandra chinensis extract improves the antiseptic property of the biomass gum. The three are screened through multiple tests to obtain the optimal compounding ratio. After mixing, the mixture has good viscosity, is durable, and is not easy to crack or fall off.

[0023] It should be noted that the biomass glue is mixed with tamarind gum, guar gum and Schisandra chinensis extract in a weight ratio of 1: (3-5): (2-3); the thickness of the glass fiber wall cloth body is 5 mm, the thickness of the waterproof and fire-resistant coating on any side of the glass fiber wall cloth body is 0.8 mm, the particle size of the porous glass microbeads is 20-30 μm, and the specific surface area is 150-200 m2 / g; the calcium stearate and the inorganic flame retardant are ground into nanometer level, and the inorganic flame retardant is aluminum hydroxide; and the above raw materials are prepared by a preparation method, comprising the following steps:

[0024] S1: Preparation of amide dispersion: Add a formula amount of gum arabic powder into water while stirring, mix stearic acid and castor oil and add them, mix well, add the above ethylene bisstearamide, stir well, and obtain amide dispersion;

[0025] S2: Preparation of impregnation liquid: epoxy-modified silicone resin, modified polyurethane, sodium bentonite, impact modifier, coupling agent, antioxidant, surfactant, dibutyl phthalate, and zinc stearate are mixed uniformly according to weight proportions, and then added into the amide dispersion obtained in S1;

[0026] S3: Treating glass fiber cloth: Put the glass fiber plain cloth into an acid leaching tank, add 0.3-0.5 mol / L hydrochloric acid aqueous solution into the acid leaching tank, the temperature of the hydrochloric acid aqueous solution is 80-90°C, soak for half an hour, take out the glass fiber plain cloth and wash it with clean water until the surface of the glass fiber cloth is neutral, then put the glass fiber plain cloth into the oven in a continuous manner, control the oven temperature to 200-300 degrees Celsius, maintain the speed of 20-30m / min, and then cool it naturally to room temperature;

[0027] S4: impregnation and drying: the glass fiber plain weave cloth treated in S3 is impregnated into an impregnation tank, which is filled with the impregnation solution obtained in S2, and the glass fiber plain weave cloth is passed through the impregnation tank at a uniform speed, and then sent to a curing tank for curing for half an hour, so that the surface of the glass fiber layer is covered with a corrosion-resistant resin layer; the completely cured cloth is ultrasonically cured for 5 to 8 minutes, sent to an oven for drying, and naturally cooled to room temperature;

[0028] S5: Rolling and packaging: ultrasonically treat the treated glass fiber plain weave fabric for 5 to 8 minutes and roll it up to obtain the finished product.

[0029] The above-mentioned finished product is Example 1. On the basis of Example 1, the fractions of some raw materials are changed, specifically: the waterproof and fire-resistant coating is mainly composed of biomass glue and waterproof and fire-resistant composition in a weight ratio of 2:7, and the biomass glue is a mixture of tamarind gum, guar gum and Schisandra chinensis extract; the waterproof and fire-resistant composition is mainly composed of the following raw materials in parts by weight: 10 parts of ethylene glycol, 8 parts of polyvinyl alcohol, 10 parts of dimethyl carbonate, 2 parts of porous glass microspheres, 3 parts of calcium stearate, 0.5 parts of inorganic flame retardant and 30 parts of water; The biomass glue is mixed with tamarind gum, guar gum and Schisandra chinensis extract in a weight ratio of 1:3:2; the thickness of the glass fiber wall cloth body is 2 mm, and the thickness of the waterproof and fire-resistant coating on any side of the glass fiber wall cloth body is 0.3 mm; the particle size of the porous glass microbeads is 20-30 μm, and the specific surface area is 150-200 m2 / g; the calcium stearate and the inorganic flame retardant are ground to nanometer level; the inorganic flame retardant is aluminum hydroxide; and Example 2 is achieved by the above-mentioned preparation method.

[0030] Embodiment 3: The waterproof and fire-resistant coating is mainly composed of biomass glue and waterproof and fire-resistant composition in a weight ratio of 3:7, and the biomass glue is a mixture of tamarind gum, guar gum and Schisandra chinensis extract; the waterproof and fire-resistant composition is mainly composed of the following raw materials in parts by weight: 15 parts of ethylene glycol, 12 parts of polyvinyl alcohol, 15 parts of dimethyl carbonate, 5 parts of porous glass beads, 8 parts of calcium stearate, 2 parts of inorganic flame retardant and 60 parts of water; the biomass glue is a mixture of tamarind gum, guar gum and Schisandra chinensis extract in a weight ratio of 1:5:3; the thickness of the glass fiber wall cloth body is 5mm, and the thickness of the waterproof and fire-resistant coating on any side of the glass fiber wall cloth body is 0.8mm; the particle size of the porous glass beads is 20-30μm, and the specific surface area is 150-200m2 / g; the calcium stearate and the inorganic flame retardant are ground to nanometer level; and the above-mentioned preparation method is used to achieve Embodiment 3.

[0031] Furthermore, a comparative example is set up to test the performance of the above-mentioned waterproof glass fiber cloth; the raw materials of the waterproof and fire-resistant glass fiber wall cloth of comparative example 1 are basically the same as those of embodiment 1, with the difference that tamarind gum, guar gum and Schisandra chinensis extract are mixed in a weight ratio of 1:1:1; the preparation method of the waterproof and fire-resistant glass fiber wall cloth of comparative example 1 is the same as the above-mentioned preparation method, and the finished product is obtained by the preparation method.

[0032] It should also be noted that the above-mentioned waterproof and fire-resistant coating is mainly composed of biomass glue and waterproof and fire-resistant composition in a weight ratio of 2.33:7, and the thickness of the glass fiber wall cloth body is 1 to 5 mm, and the thickness of the waterproof and fire-resistant coating on any side of the glass fiber wall cloth body is 0.3 to 0.8 mm.

[0033] Furthermore, in the comparative example, the waterproof and fire-resistant composition is mainly composed of the following raw materials in parts by weight: 12 parts of ethylene glycol, 15 parts of polyvinyl alcohol, 12 parts of dimethyl carbonate, 4 parts of porous glass microspheres, 6 parts of calcium stearate, 1.3 parts of inorganic flame retardant and 48 parts of water for preparation, and through S1: amide dispersion preparation: adding a formula amount of gum arabic powder to water while stirring, mixing stearic acid and castor oil and then adding, after mixing, adding the above-mentioned ethylene bisstearamide, stirring evenly, to obtain an amide dispersion;

[0034] S2: Preparation of impregnation liquid: epoxy-modified silicone resin, modified polyurethane, sodium bentonite, impact modifier, coupling agent, antioxidant, surfactant, dibutyl phthalate, and zinc stearate are mixed uniformly according to weight proportions, and then added into the amide dispersion obtained in S1;

[0035] S3: Treating glass fiber cloth: Put the glass fiber plain cloth into an acid leaching tank, add 0.3-0.5 mol / L hydrochloric acid aqueous solution into the acid leaching tank, the temperature of the hydrochloric acid aqueous solution is 80-90°C, soak for half an hour, take out the glass fiber plain cloth and wash it with clean water until the surface of the glass fiber cloth is neutral, then put the glass fiber plain cloth into the oven in a continuous manner, control the oven temperature to 200-300 degrees Celsius, maintain the speed of 20-30m / min, and then cool it naturally to room temperature;

[0036] S4: impregnation and drying: the glass fiber plain weave cloth treated in S3 is impregnated into an impregnation tank, which is filled with the impregnation solution obtained in S2, and the glass fiber plain weave cloth is passed through the impregnation tank at a uniform speed, and then sent to a curing tank for curing for half an hour, so that the surface of the glass fiber layer is covered with a corrosion-resistant resin layer; the completely cured cloth is ultrasonically cured for 5 to 8 minutes, sent to an oven for drying, and naturally cooled to room temperature;

[0037] S5: Rolling and packaging: ultrasonically treat the treated glass fiber plain weave fabric for 5 to 8 minutes and roll it up to obtain the finished product.

[0038] The performance of the waterproof and fire-resistant glass fiber wall coverings prepared in Examples 1 to 3, Comparative Example 1 and Comparative Example 2 was tested, and the test results are shown in Table 1:

[0039]

[0040] Table 1

[0041] It can be seen from Table 1 that the waterproof and fire-resistant glass fiber wall cloths prepared in Examples 1 to 3 of the present invention have a high fireproofing grade, strong hydrophobicity, are not easy to be wetted, and have strong tensile elasticity and breaking strength.

[0042] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive, and therefore the present invention is not limited to the embodiments described in the specific implementation manners. Any other implementation manners derived by those skilled in the art based on the technical solutions of the present invention also fall within the scope of protection of the present invention.

Claims

1. A waterproof glass fiber cloth, characterized in that: The invention comprises a glass fiber wall cloth body and a waterproof and fire-resistant coating coated on both sides of the glass fiber wall cloth body. The waterproof and fire-resistant coating is mainly composed of biomass glue and a waterproof and fire-resistant composition according to a weight ratio of (2-3):

7. The biomass glue is a mixture of tamarind gum, guar gum and Schisandra chinensis extract. The waterproof and fire-resistant composition comprises the following raw materials in parts by weight: 35-45 parts of glass fiber plain cloth, 3-7 parts of epoxy modified silicone resin, 6-15 parts of modified polyurethane, 0.5-0.8 parts of castor oil acid, 1-3 parts of ethylene bisstearamide, 8-13 parts of sodium bentonite, 1-3 parts of impact modifier, 0.7-2.7 parts of gum arabic powder, 3-5 parts of coupling agent, 2-5 parts of antioxidant, 3-5 parts of surfactant, 3-5 parts of dibutyl phthalate, 1-3 parts of zinc stearate, 10-15 parts of ethylene glycol, 8-12 parts of polyvinyl alcohol, 10-15 parts of dimethyl carbonate, 2-5 parts of porous glass microspheres, 3-8 parts of calcium stearate, 0.5-2 parts of inorganic flame retardant and 30-60 parts of water.

2. The waterproof glass fiber cloth according to claim 1, characterized in that: The biomass gum is prepared by mixing tamarind gum, guar gum and Schisandra chinensis extract in a weight ratio of 1:(3-5):(2-3).

3. The waterproof glass fiber cloth according to claim 1, characterized in that: The thickness of the fiberglass wall cloth body is 1-5 mm, and the thickness of the waterproof and fire-resistant coating on any side of the fiberglass wall cloth body is 0.3-0.8 mm.

4. The waterproof glass fiber cloth according to claim 1, characterized in that: The waterproof and fire-resistant coating is mainly composed of biomass glue and a waterproof and fire-resistant composition in a weight ratio of 2.33:

7.

5. The waterproof glass fiber cloth according to claim 1, characterized in that: The waterproof and fire-resistant composition is mainly composed of the following raw materials in parts by weight: 12 parts of ethylene glycol, 15 parts of polyvinyl alcohol, 12 parts of dimethyl carbonate, 4 parts of porous glass microspheres, 6 parts of calcium stearate, 1.3 parts of inorganic flame retardant and 48 parts of water.

6. The waterproof glass fiber cloth and the preparation method thereof according to claim 1, characterized in that: The glass fiber is alkali-free glass fiber, the glass fiber diameter is 15-18 μm, and the glass fiber density is 2.5-2.8 g / cm3.

7. The waterproof glass fiber cloth according to claim 1, characterized in that: The preparation method of the modified polyurethane comprises the following steps: mixing toluene diisocyanate TDI, polyether N220, polyether N330 and terminal hydroxypropyl silicone oil in a weight ratio of 2:5:5:1, adding 0.05-0.1 parts of dibutyltin dilaurate, reacting at 90-110°C for 2-3 hours to obtain a prepolymer of terminal hydroxypropyl silicone oil modified polyurethane, taking 50 parts of the prepolymer, mixing with montmorillonite, curing agent DMTDA and polyether N330 in a weight ratio of 1-3:3.5-4:2-3, stirring at a speed of 600-800 r / min for 30-50 minutes, and placing in an oven at a constant temperature of 90°C for 10 hours to obtain an organosilicon / montmorillonite composite modified polyurethane.

8. The method for preparing a waterproof glass fiber cloth according to any one of claims 1 to 8, characterized in that: The following steps are included: S1: Preparation of amide dispersion: Add a formula amount of gum arabic powder into water while stirring, mix stearic acid and castor oil and add them, mix well, add the above ethylene bisstearamide, stir well, and obtain amide dispersion; S2: Preparation of impregnation liquid: epoxy-modified silicone resin, modified polyurethane, sodium bentonite, impact modifier, coupling agent, antioxidant, surfactant, dibutyl phthalate, and zinc stearate are mixed uniformly according to weight proportions, and then added into the amide dispersion obtained in S1; S3: Treating glass fiber cloth: Put the glass fiber plain cloth into an acid leaching tank, add 0.3-0.5 mol / L hydrochloric acid aqueous solution into the acid leaching tank, the temperature of the hydrochloric acid aqueous solution is 80-90°C, soak for half an hour, take out the glass fiber plain cloth and wash it with clean water until the surface of the glass fiber cloth is neutral, then put the glass fiber plain cloth into the oven in a continuous manner, control the oven temperature to 200-300 degrees Celsius, maintain the speed of 20-30m / min, and then cool it naturally to room temperature; S4: impregnation and drying: the glass fiber plain weave cloth treated in S3 is impregnated into an impregnation tank, which is filled with the impregnation solution obtained in S2, and the glass fiber plain weave cloth is passed through the impregnation tank at a uniform speed, and then sent to a curing tank for curing for half an hour, so that the surface of the glass fiber layer is covered with a corrosion-resistant resin layer; the completely cured cloth is ultrasonically cured for 5 to 8 minutes, sent to an oven for drying, and naturally cooled to room temperature; S5: Rolling and packaging: ultrasonically treat the treated glass fiber plain weave fabric for 5 to 8 minutes and roll it up to obtain the finished product.

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