Chemical fiber plate and preparation method thereof

Abstract

The invention relates to a chemical fiber plate and a preparation method thereof, the preparation method comprises the following steps: S1, adding 20-50 parts of coffee grounds, 0.10-1.00 parts of a dispersant, 1.00-4.00 parts of a surface modifier and 0.20-0.50 part of a pH regulator into a ball mill, adding water to 100 parts, carrying out a ball milling reaction, and after the reaction is finished, carrying out post-treatment to obtain a modified coffee grounds dispersion liquid; s2, adding 40.00-60.00 parts of latex and 10.00-40.00 parts of the modified coffee residue dispersion liquid obtained in the step S1 into a gum dipping tank, and adding water to 100 parts, so as to obtain gum dipping liquid; s3, the gum dipping tank is sequentially configured into three sections in the conveying direction of the non-woven fabric, and 5.00 g / L to 25.00 g / L of synthetic beewax, 6.00 g / L to 14.00 g / L of hedera helix extract, 6.00 g / L to 14.00 g / L of butoxydiethylene glycol, 25.00 g / L to 30.00 g / L of zinc pyrrolidone carboxylate and 25.00 g / L to 30.00 g / L of scleroglucan are added into the gum dipping liquid prepared in the S2 in the three sections; s4, after non-woven fabric is subjected to padding in the gum dipping tank obtained in the S3, drying, tentering and shaping are conducted, then cooling and shaping are conducted, and the chemical fiber plate is obtained. The preparation method has the effect of preparing the chemical fiber plate which is antibacterial, deodorant, good in viscosity, resistant to low-temperature bending and good in shape retention rate.

Description

Technical Field

[0001] The present invention relates to the technical field of chemical fiber boards, and in particular to a chemical fiber board and a preparation method thereof. Background Art

[0002] Fiber chemical fiber board is made of non-woven fiber cotton impregnated with resin through high temperature curing, ironing and shaping. It has the advantages of light weight, wear resistance, high tensile strength, low shrinkage, not easy to deform, good elasticity, good toughness, good compression and flex resistance, etc. It can be widely used in the bottom, front lining and back lining of sports shoes, leather shoes, men's and women's casual shoes, bags, car interiors, furniture and other fields. At present, the fiber chemical fiber board shoe material on the market has poor air permeability, no moisture absorption and deodorization function, easy to breed bacteria, which is harmful to human health. In addition, the soles made of this kind of material have poor anti-aging performance and are easy to be peeled off, affecting the quality of shoes or bags.

[0003] The Chinese patent with publication number CN105506988A recently applied by the applicant discloses a method for preparing a highly breathable ion-rich fiber chemical fiber board. The preparation process of the fiber chemical fiber board is as follows: 25 to 35 parts by weight of negative ion / bamboo activated carbon composite material and 15 to 25 parts by weight of deionized water are fully stirred, and then 45 to 55 parts by weight of emulsion resin are added, mixed and stirred for 25 to 35 minutes to make the slurry prepared by it be fully mixed, and then the non-woven fabric is rolled in a dipping tank and dried at 175 to 185°C for stenting and shaping, and then cooled and shaped; the emulsion resin is a styrene-acrylic emulsion with a solid content of 48%, a glass transition temperature of 80°C, and a pH value of 7 to 8.

[0004] In the above preparation methods, there are some obvious deficiencies, which limit the performance and application range of chemical fiber sheets. First, these sheets are insufficient in antibacterial and deodorizing capabilities, which means that they cannot effectively inhibit the growth of bacteria and eliminate bad odors, thus affecting their use in environments with high hygiene requirements. Secondly, the viscosity of these sheets is poor, which may lead to problems of weak adhesion during manufacturing or use, thereby affecting the overall quality and service life of the product. Furthermore, these sheets have defects in low-temperature bending resistance, which means that in low-temperature environments, the sheets may become fragile and prone to breakage or deformation, which is particularly problematic in applications in cold areas. Finally, the shape retention rate of these sheets is not high, that is, when affected by external forces or environmental changes, the sheets are difficult to maintain their original shape, which not only affects the appearance of the product, but may also lead to a decrease in its functionality. Therefore, in order to overcome these defects, it is necessary to develop a new type of chemical fiber sheet, which can not only solve the above problems, but also have better antibacterial and deodorizing properties, stronger bonding ability, better low-temperature bending resistance and higher shape retention rate to meet the market demand for high-performance chemical fiber sheets.

[0005] Fiber chemical fiber board is made of non-woven fiber cotton impregnated with resin through high temperature curing, ironing and shaping. It has the advantages of light weight, wear resistance, high tensile strength, low shrinkage, not easy to deform, good elasticity, good toughness, good compression and flex resistance, etc. It can be widely used in the bottom, front lining and back lining of sports shoes, leather shoes, men's and women's casual shoes, bags, car interiors, furniture and other fields. At present, the fiber chemical fiber board shoe material on the market has poor air permeability, no moisture absorption and deodorization function, easy to breed bacteria, which is harmful to human health. In addition, the soles made of this kind of material have poor anti-aging performance and are easy to be peeled off, affecting the quality of shoes or bags.

[0006] The Chinese patent with publication number CN105506988A recently applied by the applicant discloses a method for preparing a highly breathable ion-rich fiber chemical fiber board. The preparation process of the fiber chemical fiber board is as follows: 25 to 35 parts by weight of negative ion / bamboo activated carbon composite material and 15 to 25 parts by weight of deionized water are fully stirred, and then 45 to 55 parts by weight of emulsion resin are added, mixed and stirred for 25 to 35 minutes to make the slurry prepared by it be fully mixed, and then the non-woven fabric is rolled in a dipping tank and dried at 175 to 185°C for stenting and shaping, and then cooled and shaped; the emulsion resin is a styrene-acrylic emulsion with a solid content of 48%, a glass transition temperature of 80°C, and a pH value of 7 to 8.

[0007] In the above preparation methods, there are some obvious deficiencies, which limit the performance and application range of chemical fiber sheets. First, these sheets are insufficient in antibacterial and deodorizing capabilities, which means that they cannot effectively inhibit the growth of bacteria and eliminate bad odors, thus affecting their use in environments with high hygiene requirements. Secondly, the viscosity of these sheets is poor, which may lead to problems of weak adhesion during manufacturing or use, thereby affecting the overall quality and service life of the product. Furthermore, these sheets have defects in low-temperature bending resistance, which means that in low-temperature environments, the sheets may become fragile and prone to breakage or deformation, which is particularly problematic in applications in cold areas. Finally, the shape retention rate of these sheets is not high, that is, when affected by external forces or environmental changes, the sheets are difficult to maintain their original shape, which not only affects the appearance of the product, but may also lead to a decrease in its functionality. Therefore, in order to overcome these defects, it is necessary to develop a new type of chemical fiber sheet, which can not only solve the above problems, but also have better antibacterial and deodorizing properties, stronger bonding ability, better low-temperature bending resistance and higher shape retention rate to meet the market demand for high-performance chemical fiber sheets. Summary of the invention

[0008] In view of the shortcomings of the prior art, the first object of the present invention is to provide a method for preparing a chemical fiber board, which has simple steps and can produce a chemical fiber board with the advantages of antibacterial and deodorizing, good viscosity, resistance to low temperature bending, and good shape retention.

[0009] The second object of the present invention is to provide a chemical fiber board having the advantages of antibacterial and deodorizing properties, good viscosity, resistance to low-temperature bending, and good shape retention.

[0010] To achieve the above first object, the present invention provides the following technical solutions: A method for preparing a chemical fiber board comprises the following steps: S1: In a ball mill, 20-50 parts of coffee grounds, 0.10-1.00 parts of a dispersant, 1.00-4.00 parts of a surface modifier, and 0.20-0.50 parts of a pH adjuster are added, and water is added to 100 parts, and a ball milling reaction is performed. After the reaction is completed, a modified coffee grounds dispersion is obtained by post-treatment; S2: adding 40.00-60.00 parts of latex and 10.00-40.00 parts of the modified coffee grounds dispersion obtained in S1 into a dipping tank, and adding water to 100 parts to obtain a dipping solution; S3: configuring the dipping tank into three sections in sequence along the conveying direction of the non-woven fabric, and adding 5.00-25.00 g / L of synthetic beeswax, 6.00-14.00 g / L of ivy extract and butoxydiglycol, and 25.00-30.00 g / L of zinc pyrrolidonecarboxylate and scleroglucan to the dipping solution prepared in S2 in the three sections respectively; S4: the non-woven fabric is dipped in the dipping tank obtained in S3, and then dried, stretched and shaped, and then cooled and shaped to obtain a chemical fiber sheet.

[0011] By adopting the above technical scheme, a modified coffee grounds dispersion is prepared by adding a specific proportion of coffee grounds and other additives in a ball mill, and the dispersion gives the chemical fiber board excellent antibacterial and deodorizing properties in the subsequent dipping process; at the same time, by accurately controlling the addition amount of synthetic beeswax, ivy extract and butoxydiglycol, as well as zinc pyrrolidonecarboxylate and scleroglucan in the dipping solution, the bonding strength, odor suppression, and moisturizing film-forming performance between the non-woven fabric surface and the modified coffee grounds can be sequentially regulated during the dipping process, further enhancing the viscosity, low-temperature bending resistance and shape retention of the chemical fiber board. Finally, after the process of drying, stretching and cooling, the obtained chemical fiber board not only has good physical properties, but also has environmental protection and health functional characteristics, meeting the needs of modern life for high-quality materials.

[0012] Furthermore, in S1, the particle size of the coffee grounds is controlled to be in the range of 5 to 50 μm. This ensures that the coffee grounds are fully dispersed in the ball mill and evenly mixed with other components, so that they can be more effectively combined with the non-woven fabric during the dipping process, thereby improving the antibacterial and deodorizing effect of the chemical fiber board; in addition, by optimizing the particle size of the coffee grounds, the wear on subsequent processing equipment can be reduced, the service life of the equipment can be extended, and the surface quality and performance stability of the chemical fiber board can be guaranteed.

[0013] Furthermore, in the S1, the dispersant is a combination of one or more of sodium dodecyl sulfonate, sodium dodecylbenzene sulfonate, disodium lauryl sulfosuccinate, potassium monododecyl phosphate, ammonium fatty alcohol polyoxyethylene ether sulfate, and coconut oil diethanolamide. The addition of the dispersant not only helps to stabilize the coffee grounds dispersion, but also improves the surface tension of the dipping solution, thereby improving the bonding effect between the non-woven fabric and the modified coffee grounds; by accurately controlling the type and amount of the dispersant, the problem of uneven glue or excessive aggregation on the surface of the non-woven fabric can be effectively avoided, ensuring that the antibacterial and deodorizing properties of the chemical fiber board are uniform; in addition, the use of the dispersant also helps to reduce energy consumption in the production process, improve production efficiency, and is environmentally friendly and in line with the principles of green chemistry.

[0014] Further, in the S1, the surface modifier is one or a combination of isopropyl distearate acyloxyaluminate, isopropyl dioleate acyloxy (dioctyl phosphate acyloxy) titanate, isopropyl tris (dioctyl phosphate acyloxy) titanate, isopropyl trisostearate titanate, bis (dioctyl pyrophosphate) ethylene titanate, γ-glycidylpropyl-trimethoxysilane, γ-methacryloxypropyl-trimethoxysilane, γ-aminopropyl-trimethoxysilane, γ-mercaptopropyl-trimethoxysilane, and vinyl triethoxysilane. The use of surface modifiers can significantly improve the dispersibility and stability of coffee grounds in chemical fiber boards. Through chemical bonding or physical adsorption, surface modifiers can improve the surface properties of coffee grounds, enhance their compatibility with non-woven fabric substrates, and thus improve the overall performance of the composite material. In addition, the addition of surface modifiers helps to reduce the agglomeration of coffee grounds during the impregnation process, ensuring that the modified coffee grounds are evenly distributed on the non-woven fabric, further enhancing the antibacterial and deodorizing effects of chemical fiber boards. At the same time, by selecting suitable surface modifiers, the surface hydrophilicity or hydrophobicity of chemical fiber boards can be effectively controlled to meet the needs of different application scenarios.

[0015] Furthermore, in S1, the pH regulator is hydrochloric acid and / or sodium hydroxide to control the pH value of the modified coffee grounds dispersion to be 4 to 10. By precisely controlling the pH value, the charge state of the coffee grounds surface can be optimized, thereby improving its dispersibility and stability on the non-woven fabric substrate; in addition, a suitable pH value helps the surface modifier to play a better role, further enhances the bonding force between the coffee grounds and the substrate, and ensures the mechanical properties and antibacterial and deodorizing effects of the composite material; in actual operation, the pH value should be adjusted appropriately according to the type of coffee grounds and the properties of the surface modifier to achieve the best modification effect.

[0016] Furthermore, in the S1, the ball milling reaction is carried out at room temperature, and during the ball milling process, all valves are closed, and no gas exchange is carried out with the external atmosphere. The ball milling speed is controlled to be 100-500 rpm, the ball milling time is 1-4 hours, and the mass ratio of the reactant to the grinding ball is 30-100:1. In the S1, after the ball milling reaction is completed, the reactant is filtered to separate the grinding balls and the unreacted coffee grounds solids, and the remaining filtrate is the modified coffee grounds dispersion. The surface properties of the modified coffee grounds have been improved and can be used in the subsequent composite material preparation process. Through the above steps, a chemical fiber board with excellent performance can be effectively prepared, which has good antibacterial and deodorizing effects and mechanical properties.

[0017] Further, in S2, the solid content of the latex is 50-60%, and the latex is one or more of natural latex, styrene butadiene latex, carboxylated styrene butadiene latex, chloroprene latex, and vinyl acetate-ethylene copolymer latex. The corresponding latex can be selected according to the adaptability of the chemical fiber sheet demand.

[0018] Furthermore, in S3, the mass ratio of ivy extract to butoxydiglycol is 0.4-0.8:0.2-0.6, and the mass ratio of zinc pyrrolidonecarboxylate to scleroglucan is 0.1-0.2:2.4-2.8. The chemical fiber board prepared under these conditions has better performance.

[0019] Further, in the S4, the non-woven fabric is needle-shaped by 0.4MM polyester polyester chemical fiber, with a thickness of 0.4~2.0mm, and the non-woven fabric is added to the dipping tank according to the bath ratio of 1:10~20, and the temperatures of the three sections of the dipping tank are controlled to be 30~35℃, 20~25℃, and 10~25℃, respectively, and the dipping time of each section is 30~60min, the rubber roller liquid rate is 100~300%, and the drying temperature of the drying and stentering is controlled to be 160~220℃, and the drying time is 0.5~5.0min. The chemical fiber sheet prepared under this condition has better performance.

[0020] To achieve the above second purpose, the present invention provides the following technical solutions: A chemical fiber board is prepared by the above preparation method.

[0021] By adopting the above technical scheme, due to the use of a specific proportion of impregnation solution, as well as synthetic beeswax, ivy extract and butoxydiglycol, zinc pyrrolidonecarboxylate and scleroglucan, and an optimized non-woven fabric processing process, the final product has excellent antibacterial and deodorizing functions while maintaining good physical properties; in addition, the bonding performance of the board is improved, so that it can still maintain good tortuosity and shape stability in low temperature environments, thereby meeting a wider range of application needs.

[0022] In summary, the beneficial technical effects of the present invention are: 1. The preparation method of the chemical fiber board of the present invention has the advantages of simple steps, and can prepare a chemical fiber board with antibacterial and deodorizing properties, good viscosity, resistance to low temperature bending, and good shape retention rate; 2. The chemical fiber board of the present invention has the advantages of antibacterial and deodorizing, good viscosity, resistance to low-temperature bending, and good shape retention. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and functions achieved by the present invention clearer and easier to understand, the present invention is further explained below in conjunction with specific implementation methods. Example

[0024] Embodiment 1: A method for preparing a chemical fiber board disclosed in the present invention comprises the following steps: S1: In a ball mill, first add 32 parts of coffee grounds with a particle size range of 25-35 μm, 0.60 parts of a dispersant (sodium dodecyl sulfate), 2.10 parts of a surface modifier (isopropyl distearate acyloxyaluminate), and 0.25 parts of a pH adjuster (hydrochloric acid and / or sodium hydroxide), and add water to 100 parts to control the pH value to be in the range of 4-10, and then perform ball milling reaction at room temperature. During the ball milling process, all valves are closed, and no gas exchange is performed with the external atmosphere. The ball milling speed is controlled to be 300 rpm, the ball milling time is 2.5 h, and the mass ratio of the reactant to the grinding ball is 60:1. After the reaction is completed, the modified coffee grounds dispersion is obtained by post-treatment; S2: Add 50.00 parts of latex (carboxylated styrene butadiene latex with a solid content of 55%) and 25.00 parts of the modified coffee grounds dispersion obtained in S1 into a dipping tank, and add water to 100 parts to obtain a dipping solution; S3: configuring the dipping tank into three sections in sequence along the conveying direction of the non-woven fabric, and adding 15.00 g of synthetic beeswax, 6.00 g of ivy extract, 4.00 g of butoxydiglycol, 1.50 g of zinc pyrrolidonecarboxylate and 26.00 g of scleroglucan into each liter of dipping solution prepared in S2 in the three sections respectively; S4 uses 0.4MM polyester polyester chemical fiber needle-rolled non-woven fabric with a thickness of 1.2mm. The non-woven fabric is first added to the dipping tank according to a bath ratio of 1:20, and the temperatures of the three sections of the dipping tank are controlled to be 32℃, 22℃, and 18℃ respectively, and the dipping time of each section is 40min. The liquid rate of the rubber roller is 100-300%. Then it is dried and stretched to shape. The drying temperature of the drying and stretching is controlled to be 200℃, the drying time is 2.0min, and then cooled and shaped to obtain a chemical fiber sheet.

[0025] Embodiment 2: A method for preparing a chemical fiber board disclosed in the present invention comprises the following steps: S1: In a ball mill, first add 20 parts of coffee grounds with a particle size range of 5-10 μm, 0.10 parts of a dispersant (sodium dodecyl sulfate), 1.00 parts of a surface modifier (isopropyl distearate acyloxyaluminate), and 0.20 parts of a pH adjuster (hydrochloric acid and / or sodium hydroxide), and add water to 100 parts to control the pH value to be in the range of 4-10, and then perform ball milling reaction at room temperature. During the ball milling process, all valves are closed, and no gas exchange is performed with the external atmosphere. The ball milling speed is controlled to be 100 rpm, the ball milling time is 1.0 h, and the mass ratio of the reactant to the grinding ball is 30:1. After the reaction is completed, the modified coffee grounds dispersion is obtained by post-treatment; S2: adding 40.00 parts of latex (carboxylated styrene butadiene latex with a solid content of 50%) and 10.00 parts of the modified coffee grounds dispersion obtained in S1 to a dipping tank, and adding water to 100 parts to obtain a dipping solution; S3: configuring the dipping tank into three sections in sequence along the conveying direction of the non-woven fabric, and adding 5.00 g of synthetic beeswax, 4.00 g of ivy extract, 2.00 g of butoxydiglycol, 1.00 g of zinc pyrrolidonecarboxylate and 24.00 g of scleroglucan into each liter of dipping solution prepared in S2 in the three sections respectively; S4 uses 0.4MM polyester chemical fiber needle-rolled non-woven fabric with a thickness of 0.4mm. The non-woven fabric is first added to the dipping tank according to a bath ratio of 1:10, and the temperatures of the three sections of the dipping tank are controlled to be 30℃, 20℃, and 10℃ respectively, and the dipping time of each section is 30min. The liquid rate of the rubber roller is 100-300%. Then it is dried and stretched to shape. The drying temperature of the drying and stretching is controlled to be 160℃, the drying time is 0.5min, and then cooled and shaped to obtain a chemical fiber sheet.

[0026] Embodiment 3: A method for preparing a chemical fiber board disclosed in the present invention comprises the following steps: S1: In a ball mill, first add 25 parts of coffee grounds with a particle size range of 10-15 μm, 0.20 parts of a dispersant (sodium dodecyl sulfate), 1.50 parts of a surface modifier (isopropyl distearate acyloxyaluminate), and 0.30 parts of a pH adjuster (hydrochloric acid and / or sodium hydroxide), and add water to 100 parts to control the pH value to be in the range of 4-10, and then perform ball milling reaction at room temperature. During the ball milling process, all valves are closed, and no gas exchange is performed with the external atmosphere. The ball milling speed is controlled to be 200 rpm, the ball milling time is 1.5 h, and the mass ratio of the reactant to the grinding ball is 50:1. After the reaction is completed, the modified coffee grounds dispersion is obtained by post-treatment; S2: Add 45.00 parts of latex (carboxylated styrene butadiene latex with a solid content of 50%) and 15.00 parts of the modified coffee grounds dispersion obtained in S1 into a dipping tank, and add water to 100 parts to obtain a dipping solution; S3: configuring the dipping tank into three sections in sequence along the conveying direction of the non-woven fabric, and adding 10.00 g of synthetic beeswax, 5.00 g of ivy extract, 3.00 g of butoxydiglycol, 1.20 g of zinc pyrrolidonecarboxylate and 25.00 g of scleroglucan into each liter of dipping solution prepared in S2 in the three sections respectively; S4 uses 0.4MM polyester polyester chemical fiber needle-rolled non-woven fabric with a thickness of 0.8mm. The non-woven fabric is first added to the dipping tank according to a bath ratio of 1:10, and the temperatures of the three sections of the dipping tank are controlled to be 31°C, 21°C, and 12°C respectively, and the dipping time of each section is 45min. The liquid rate of the rubber roller is 100-300%. Then it is dried and stretched to shape. The drying temperature of the drying and stretching is controlled to be 180°C, the drying time is 1.0min, and then cooled and shaped to obtain a chemical fiber sheet.

[0027] Embodiment 4: A method for preparing a chemical fiber board disclosed in the present invention comprises the following steps: S1: In a ball mill, first add 30 parts of coffee grounds with a particle size range of 15-25 μm, 0.50 parts of a dispersant (sodium dodecyl sulfate), 2.50 parts of a surface modifier (isopropyl distearate acyloxyaluminate), and 0.40 parts of a pH adjuster (hydrochloric acid and / or sodium hydroxide), and add water to 100 parts to control the pH value to be in the range of 4-10, and then perform ball milling reaction at room temperature. During the ball milling process, all valves are closed, and no gas exchange is performed with the external atmosphere. The ball milling speed is controlled to be 300 rpm, the ball milling time is 3.0 h, and the mass ratio of the reactant to the grinding ball is 70:1. After the reaction is completed, the modified coffee grounds dispersion is obtained by post-treatment; S2: Add 55.00 parts of latex (carboxylated styrene butadiene latex with a solid content of 60%) and 30.00 parts of the modified coffee grounds dispersion obtained in S1 into a dipping tank, and add water to 100 parts to obtain a dipping solution; S3: configuring the dipping tank into three sections in sequence along the conveying direction of the non-woven fabric, and adding 20.00 g of synthetic beeswax, 7.00 g of ivy extract, 5.00 g of butoxydiglycol, 1.80 g of zinc pyrrolidonecarboxylate and 27.00 g of scleroglucan into each liter of dipping solution prepared in S2 in the three sections respectively; S4 uses 0.4MM polyester polyester chemical fiber needle-rolled non-woven fabric with a thickness of 1.0mm. The non-woven fabric is first added to the dipping tank according to a bath ratio of 1:10, and the temperatures of the three sections of the dipping tank are controlled to be 32℃, 23℃, and 16℃ respectively, and the dipping time of each section is 50min. The liquid rate of the rubber roller is 100~300%. Then it is dried and stretched to shape. The drying temperature of the drying and stretching is controlled to be 190℃, the drying time is 3.0min, and then cooled and shaped to obtain a chemical fiber sheet.

[0028] Embodiment 5: A method for preparing a chemical fiber board disclosed in the present invention comprises the following steps: S1: In a ball mill, first add 40 parts of coffee grounds with a particle size range of 35-40 μm, 0.80 parts of a dispersant (sodium dodecyl sulfate), 3.00 parts of a surface modifier (isopropyl distearate acyloxyaluminate), and 0.45 parts of a pH adjuster (hydrochloric acid and / or sodium hydroxide), and add water to 100 parts to control the pH value to be in the range of 4-10, and then perform ball milling reaction at room temperature. During the ball milling process, all valves are closed, and no gas exchange is performed with the external atmosphere. The ball milling speed is controlled to be 400 rpm, the ball milling time is 3.5 h, and the mass ratio of the reactant to the grinding ball is 80:1. After the reaction is completed, it is post-treated to obtain a modified coffee grounds dispersion; S2: Add 60.00 parts of latex (carboxylated styrene butadiene latex with a solid content of 60%) and 35.00 parts of the modified coffee grounds dispersion obtained in S1 into a dipping tank, and add water to 100 parts to obtain a dipping solution; S3: configuring the dipping tank into three sections in sequence along the conveying direction of the non-woven fabric, and adding 25.00 g of synthetic beeswax, 8.00 g of ivy extract, 6.00 g of butoxydiglycol, 2.00 g of zinc pyrrolidonecarboxylate and 28.00 g of scleroglucan into each liter of dipping solution prepared in S2 in the three sections respectively; S4 uses 0.4MM polyester polyester chemical fiber needle-rolled non-woven fabric with a thickness of 1.5mm. The non-woven fabric is first added to the dipping tank according to a bath ratio of 1:20, and the temperatures of the three sections of the dipping tank are controlled to be 33℃, 24℃, and 20℃ respectively, and the dipping time of each section is 55min. The liquid rate of the rubber roller is 100~300%. Then it is dried and stretched to shape. The drying temperature of the drying and stretching is controlled to be 210℃, the drying time is 4.0min, and then cooled and shaped to obtain a chemical fiber sheet.

[0029] Embodiment 6: A method for preparing a chemical fiber board disclosed in the present invention comprises the following steps: S1: In a ball mill, first add 50 parts of coffee grounds with a particle size range of 40-50 μm, 1.00 parts of a dispersant (sodium dodecyl sulfate), 4.00 parts of a surface modifier (isopropyl distearate acyloxyaluminate), and 0.50 parts of a pH adjuster (hydrochloric acid and / or sodium hydroxide), and add water to 100 parts to control the pH value to be in the range of 4-10, and then perform ball milling reaction at room temperature. During the ball milling process, all valves are closed, and no gas exchange is performed with the external atmosphere. The ball milling speed is controlled to be 500 rpm, the ball milling time is 4.0 h, and the mass ratio of the reactant to the grinding ball is 100:1. After the reaction is completed, the modified coffee grounds dispersion is obtained by post-treatment; S2: Add 52.00 parts of latex (carboxylated styrene butadiene latex with a solid content of 55%) and 40.00 parts of the modified coffee grounds dispersion obtained in S1 into a dipping tank, and add water to 100 parts to obtain a dipping solution; S3: configuring the dipping tank into three sections in sequence along the conveying direction of the non-woven fabric, and adding 15.00 g of synthetic beeswax, 6.50 g of ivy extract, 4.80 g of butoxydiglycol, 1.60 g of zinc pyrrolidonecarboxylate and 25.80 g of scleroglucan into each liter of dipping solution prepared in S2 in the three sections respectively; S4 uses 0.4MM polyester polyester chemical fiber needle-rolled non-woven fabric with a thickness of 2.0mm. The non-woven fabric is first added to the dipping tank according to a bath ratio of 1:20, and the temperatures of the three sections of the dipping tank are controlled to be 35℃, 25℃, and 25℃ respectively, and the dipping time of each section is 60min. The liquid rate of the rubber roller is 100-300%. Then it is dried and stretched to shape. The drying temperature of the drying and stretching is controlled to be 220℃, the drying time is 5.0min, and then cooled and shaped to obtain a chemical fiber sheet.

[0030] Embodiment 7: A method for preparing a chemical fiber board disclosed in the present invention comprises the following steps: S1: In a ball mill, 32 parts of coffee grounds with a particle size range of 25-35 μm, 0.60 parts of a dispersant (sodium dodecylbenzene sulfonate), 2.10 parts of a surface modifier (isopropyl dioleyl (dioctyl phosphate) titanate), and 0.25 parts of a pH adjuster (hydrochloric acid and / or sodium hydroxide) are first added, and water is added to 100 parts to control the pH value to be in the range of 4-10, and then the ball milling reaction is carried out at room temperature. During the ball milling process, all valves are closed, and no gas exchange is carried out with the external atmosphere. The ball milling speed is controlled to be 500 rpm, the ball milling time is 4.0 h, and the mass ratio of the reactant to the grinding ball is 100:1. After the reaction is completed, the modified coffee grounds dispersion is obtained by post-treatment; S2: Add 52.00 parts of latex (carboxylated styrene butadiene latex with a solid content of 55%) and 25.00 parts of the modified coffee grounds dispersion obtained in S1 into a dipping tank, and add water to 100 parts to obtain a dipping solution; S3: configuring the dipping tank into three sections in sequence along the conveying direction of the non-woven fabric, and adding 15.00 g of synthetic beeswax, 6.00 g of ivy extract, 4.00 g of butoxydiglycol, 1.50 g of zinc pyrrolidonecarboxylate and 26.00 g of scleroglucan into each liter of dipping solution prepared in S2 in the three sections respectively; S4 uses 0.4MM polyester polyester chemical fiber needle-rolled non-woven fabric with a thickness of 1.2mm. The non-woven fabric is first added to the dipping tank according to a bath ratio of 1:20, and the temperatures of the three sections of the dipping tank are controlled to be 32℃, 22℃, and 18℃ respectively, and the dipping time of each section is 40min. The liquid rate of the rubber roller is 100-300%. Then it is dried and stretched to shape. The drying temperature of the drying and stretching is controlled to be 200℃, the drying time is 2.0min, and then cooled and shaped to obtain a chemical fiber sheet.

[0031] Embodiment 8: A method for preparing a chemical fiber board disclosed in the present invention comprises the following steps: S1: In a ball mill, 32 parts of coffee grounds with a particle size range of 25-35 μm, 0.60 parts of a dispersant (disodium lauryl sulfosuccinate), 2.10 parts of a surface modifier (isopropyl tri(dioctylphosphoyl)titanate), and 0.25 parts of a pH adjuster (hydrochloric acid and / or sodium hydroxide) are first added, and water is added to 100 parts to control the pH value to be in the range of 4-10, and then the ball milling reaction is carried out at room temperature. During the ball milling process, all valves are closed, and no gas exchange is carried out with the external atmosphere. The ball milling speed is controlled to be 500 rpm, the ball milling time is 4.0 h, and the mass ratio of the reactant to the grinding ball is 100:1. After the reaction is completed, the modified coffee grounds dispersion is obtained by post-treatment; S2: Add 52.00 parts of latex (natural latex with a solid content of 55%) and 25.00 parts of the modified coffee grounds dispersion obtained in S1 into a dipping tank, and add water to 100 parts to obtain a dipping solution; S3: configuring the dipping tank into three sections in sequence along the conveying direction of the non-woven fabric, and adding 15.00 g of synthetic beeswax, 6.00 g of ivy extract, 4.00 g of butoxydiglycol, 1.50 g of zinc pyrrolidonecarboxylate and 26.00 g of scleroglucan into each liter of dipping solution prepared in S2 in the three sections respectively; S4 uses 0.4MM polyester polyester chemical fiber needle-rolled non-woven fabric with a thickness of 1.2mm. The non-woven fabric is first added to the dipping tank according to a bath ratio of 1:20, and the temperatures of the three sections of the dipping tank are controlled to be 32℃, 22℃, and 18℃ respectively, and the dipping time of each section is 40min. The liquid rate of the rubber roller is 100-300%. Then it is dried and stretched to shape. The drying temperature of the drying and stretching is controlled to be 200℃, the drying time is 2.0min, and then cooled and shaped to obtain a chemical fiber sheet.

[0032] Embodiment 9: A method for preparing a chemical fiber board disclosed in the present invention comprises the following steps: S1: In a ball mill, first add 32 parts of coffee grounds with a particle size range of 25-35 μm, 0.60 parts of dispersant (potassium monododecyl phosphate), 2.10 parts of surface modifier (isopropyl titanate triisostearate), and 0.25 parts of pH adjuster (hydrochloric acid and / or sodium hydroxide), and add water to 100 parts to control the pH value range to 4-10, and then perform ball milling reaction at room temperature. During the ball milling process, all valves are closed, and no gas exchange is performed with the external atmosphere. The ball milling speed is controlled to be 500 rpm, the ball milling time is 4.0 h, and the mass ratio of reactants to grinding balls is 100:1. After the reaction is completed, the modified coffee grounds dispersion is obtained by post-treatment; S2: Add 52.00 parts of latex (styrene-butadiene latex with a solid content of 55%) and 25.00 parts of the modified coffee grounds dispersion obtained in S1 into a dipping tank, and add water to 100 parts to obtain a dipping solution; S3: configuring the dipping tank into three sections in sequence along the conveying direction of the non-woven fabric, and adding 15.00 g of synthetic beeswax, 6.00 g of ivy extract, 4.00 g of butoxydiglycol, 1.50 g of zinc pyrrolidonecarboxylate and 26.00 g of scleroglucan into each liter of dipping solution prepared in S2 in the three sections respectively; S4 uses 0.4MM polyester polyester chemical fiber needle-rolled non-woven fabric with a thickness of 1.2mm. The non-woven fabric is first added to the dipping tank according to a bath ratio of 1:20, and the temperatures of the three sections of the dipping tank are controlled to be 32℃, 22℃, and 18℃ respectively, and the dipping time of each section is 40min. The liquid rate of the rubber roller is 100-300%. Then it is dried and stretched to shape. The drying temperature of the drying and stretching is controlled to be 200℃, the drying time is 2.0min, and then cooled and shaped to obtain a chemical fiber sheet.

[0033] Embodiment 10: A method for preparing a chemical fiber board disclosed in the present invention comprises the following steps: S1: In a ball mill, 32 parts of coffee grounds with a particle size range of 25-35 μm, 0.60 parts of a dispersant (fatty alcohol polyoxyethylene ether ammonium sulfate), 2.10 parts of a surface modifier (bis(dioctyloxypyrophosphate)ethylene titanate), and 0.25 parts of a pH adjuster (hydrochloric acid and / or sodium hydroxide) are first added, and water is added to 100 parts to control the pH value to be in the range of 4-10, and then the ball milling reaction is carried out at room temperature. During the ball milling process, all valves are closed, and no gas exchange is carried out with the external atmosphere. The ball milling speed is controlled to be 500 rpm, the ball milling time is 4.0 h, and the mass ratio of the reactant to the grinding ball is 100:1. After the reaction is completed, the modified coffee grounds dispersion is obtained by post-treatment; S2: Add 52.00 parts of latex (chloroprene rubber latex with a solid content of 55%) and 25.00 parts of the modified coffee grounds dispersion obtained in S1 into a dipping tank, and add water to 100 parts to obtain a dipping solution; S3: configuring the dipping tank into three sections in sequence along the conveying direction of the non-woven fabric, and adding 15.00 g of synthetic beeswax, 6.00 g of ivy extract, 4.00 g of butoxydiglycol, 1.50 g of zinc pyrrolidonecarboxylate and 26.00 g of scleroglucan into each liter of dipping solution prepared in S2 in the three sections respectively; S4 uses 0.4MM polyester polyester chemical fiber needle-rolled non-woven fabric with a thickness of 1.2mm. The non-woven fabric is first added to the dipping tank according to a bath ratio of 1:20, and the temperatures of the three sections of the dipping tank are controlled to be 32℃, 22℃, and 18℃ respectively, and the dipping time of each section is 40min. The liquid rate of the rubber roller is 100-300%. Then it is dried and stretched to shape. The drying temperature of the drying and stretching is controlled to be 200℃, the drying time is 2.0min, and then cooled and shaped to obtain a chemical fiber sheet.

[0034] Embodiment 11: A method for preparing a chemical fiber board disclosed in the present invention comprises the following steps: S1: In a ball mill, first add 32 parts of coffee grounds with a particle size range of 25-35 μm, 0.60 parts of a dispersant (coconut acid diethanolamide), 2.10 parts of a surface modifier (γ-glycidylpropyl-trimethoxysilane), and 0.25 parts of a pH adjuster (hydrochloric acid and / or sodium hydroxide), and add water to 100 parts to control the pH value to be in the range of 4-10, and then perform ball milling reaction at room temperature. During the ball milling process, all valves are closed, and no gas exchange is performed with the external atmosphere. The ball milling speed is controlled to be 500 rpm, the ball milling time is 4.0 h, and the mass ratio of the reactant to the grinding ball is 100:1. After the reaction is completed, the modified coffee grounds dispersion is obtained by post-treatment; S2 adds 52.00 parts of latex (vinyl acetate-ethylene copolymer emulsion with a solid content of 55%) and 25.00 parts of the modified coffee grounds dispersion obtained in S1 into a dipping tank, and adds water to 100 parts to obtain a dipping solution; S3: configuring the dipping tank into three sections in sequence along the conveying direction of the non-woven fabric, and adding 15.00 g of synthetic beeswax, 6.00 g of ivy extract, 4.00 g of butoxydiglycol, 1.50 g of zinc pyrrolidonecarboxylate and 26.00 g of scleroglucan into each liter of dipping solution prepared in S2 in the three sections respectively; S4 uses 0.4MM polyester polyester chemical fiber needle-rolled non-woven fabric with a thickness of 1.2mm. The non-woven fabric is first added to the dipping tank according to a bath ratio of 1:20, and the temperatures of the three sections of the dipping tank are controlled to be 32℃, 22℃, and 18℃ respectively, and the dipping time of each section is 40min. The liquid rate of the rubber roller is 100-300%. Then it is dried and stretched to shape. The drying temperature of the drying and stretching is controlled to be 200℃, the drying time is 2.0min, and then cooled and shaped to obtain a chemical fiber sheet.

[0035] Embodiment 12: A method for preparing a chemical fiber board disclosed in the present invention comprises the following steps: S1: In a ball mill, first add 32 parts of coffee grounds with a particle size range of 25-35 μm, 0.60 parts of dispersant (disodium lauryl sulfosuccinate), 2.10 parts of surface modifier (γ-methacryloxypropyl-trimethoxysilane), and 0.25 parts of pH adjuster (hydrochloric acid and / or sodium hydroxide), and add water to 100 parts to control the pH value range to 4-10, and then perform ball milling reaction at room temperature. During the ball milling process, all valves are closed, and no gas exchange is performed with the external atmosphere. The ball milling speed is controlled to be 500 rpm, the ball milling time is 4.0 h, and the mass ratio of reactants to grinding balls is 100:1. After the reaction is completed, the modified coffee grounds dispersion is obtained by post-treatment; S2: Add 52.00 parts of latex (natural latex with a solid content of 55%) and 25.00 parts of the modified coffee grounds dispersion obtained in S1 into a dipping tank, and add water to 100 parts to obtain a dipping solution; S3: configuring the dipping tank into three sections in sequence along the conveying direction of the non-woven fabric, and adding 15.00 g of synthetic beeswax, 6.00 g of ivy extract, 4.00 g of butoxydiglycol, 1.50 g of zinc pyrrolidonecarboxylate and 26.00 g of scleroglucan into each liter of dipping solution prepared in S2 in the three sections respectively; S4 uses 0.4MM polyester polyester chemical fiber needle-rolled non-woven fabric with a thickness of 1.2mm. The non-woven fabric is first added to the dipping tank according to a bath ratio of 1:20, and the temperatures of the three sections of the dipping tank are controlled to be 32℃, 22℃, and 18℃ respectively, and the dipping time of each section is 40min. The liquid rate of the rubber roller is 100-300%. Then it is dried and stretched to shape. The drying temperature of the drying and stretching is controlled to be 200℃, the drying time is 2.0min, and then cooled and shaped to obtain a chemical fiber sheet.

[0036] Embodiment 13: A method for preparing a chemical fiber board disclosed in the present invention comprises the following steps: S1: In a ball mill, first add 32 parts of coffee grounds with a particle size range of 25-35 μm, 0.60 parts of dispersant (potassium monododecyl phosphate), 2.10 parts of surface modifier (γ-aminopropyl-trimethoxysilane), and 0.25 parts of pH adjuster (hydrochloric acid and / or sodium hydroxide), and add water to 100 parts to control the pH value range to 4-10, and then perform ball milling reaction at room temperature. During the ball milling process, all valves are closed, and no gas exchange is performed with the external atmosphere. The ball milling speed is controlled to be 500 rpm, the ball milling time is 4.0 h, and the mass ratio of reactants to grinding balls is 100:1. After the reaction is completed, the modified coffee grounds dispersion is obtained by post-treatment; S2: Add 52.00 parts of latex (styrene-butadiene latex with a solid content of 55%) and 25.00 parts of the modified coffee grounds dispersion obtained in S1 into a dipping tank, and add water to 100 parts to obtain a dipping solution; S3: configuring the dipping tank into three sections in sequence along the conveying direction of the non-woven fabric, and adding 15.00 g of synthetic beeswax, 6.00 g of ivy extract, 4.00 g of butoxydiglycol, 1.50 g of zinc pyrrolidonecarboxylate and 26.00 g of scleroglucan into each liter of dipping solution prepared in S2 in the three sections respectively; S4 uses 0.4MM polyester polyester chemical fiber needle-rolled non-woven fabric with a thickness of 1.2mm. The non-woven fabric is first added to the dipping tank according to a bath ratio of 1:20, and the temperatures of the three sections of the dipping tank are controlled to be 32℃, 22℃, and 18℃ respectively, and the dipping time of each section is 40min. The liquid rate of the rubber roller is 100-300%. Then it is dried and stretched to shape. The drying temperature of the drying and stretching is controlled to be 200℃, the drying time is 2.0min, and then cooled and shaped to obtain a chemical fiber sheet.

[0037] Embodiment 14: A method for preparing a chemical fiber board disclosed in the present invention comprises the following steps: S1: In a ball mill, first add 32 parts of coffee grounds with a particle size range of 25-35 μm, 0.60 parts of dispersant (fatty alcohol polyoxyethylene ether ammonium sulfate), 2.10 parts of surface modifier (γ-mercaptopropyl-trimethoxysilane), and 0.25 parts of pH adjuster (hydrochloric acid and / or sodium hydroxide), and add water to 100 parts to control the pH value range to 4-10, and then perform ball milling reaction at room temperature. During the ball milling process, all valves are closed, and no gas exchange is performed with the external atmosphere. The ball milling speed is controlled to 500 rpm, the ball milling time is 4.0 h, and the mass ratio of reactants to grinding balls is 100:1. After the reaction is completed, the modified coffee grounds dispersion is obtained by post-treatment; S2: Add 52.00 parts of latex (chloroprene rubber latex with a solid content of 55%) and 25.00 parts of the modified coffee grounds dispersion obtained in S1 into a dipping tank, and add water to 100 parts to obtain a dipping solution; S3: configuring the dipping tank into three sections in sequence along the conveying direction of the non-woven fabric, and adding 15.00 g of synthetic beeswax, 6.00 g of ivy extract, 4.00 g of butoxydiglycol, 1.50 g of zinc pyrrolidonecarboxylate and 26.00 g of scleroglucan into each liter of dipping solution prepared in S2 in the three sections respectively; S4 uses 0.4MM polyester polyester chemical fiber needle-rolled non-woven fabric with a thickness of 1.2mm. The non-woven fabric is first added to the dipping tank according to a bath ratio of 1:20, and the temperatures of the three sections of the dipping tank are controlled to be 32℃, 22℃, and 18℃ respectively, and the dipping time of each section is 40min. The liquid rate of the rubber roller is 100-300%. Then it is dried and stretched to shape. The drying temperature of the drying and stretching is controlled to be 200℃, the drying time is 2.0min, and then cooled and shaped to obtain a chemical fiber sheet.

[0038] Embodiment 15: A method for preparing a chemical fiber board disclosed in the present invention comprises the following steps: S1: In a ball mill, first add 32 parts of coffee grounds with a particle size range of 25-35 μm, 0.60 parts of a dispersant (coconut acid diethanolamide), 2.10 parts of a surface modifier (vinyl triethoxysilane), and 0.25 parts of a pH adjuster (hydrochloric acid and / or sodium hydroxide), and add water to 100 parts to control the pH value to be in the range of 4-10, and then perform ball milling reaction at room temperature. During the ball milling process, all valves are closed, and no gas exchange is performed with the external atmosphere. The ball milling speed is controlled to be 500 rpm, the ball milling time is 4.0 h, and the mass ratio of the reactant to the grinding ball is 100:1. After the reaction is completed, the modified coffee grounds dispersion is obtained by post-treatment; S2 adds 52.00 parts of latex (vinyl acetate-ethylene copolymer emulsion with a solid content of 55%) and 25.00 parts of the modified coffee grounds dispersion obtained in S1 into a dipping tank, and adds water to 100 parts to obtain a dipping solution; S3: configuring the dipping tank into three sections in sequence along the conveying direction of the non-woven fabric, and adding 15.00 g of synthetic beeswax, 6.00 g of ivy extract, 4.00 g of butoxydiglycol, 1.50 g of zinc pyrrolidonecarboxylate and 26.00 g of scleroglucan into each liter of dipping solution prepared in S2 in the three sections respectively; S4 uses 0.4MM polyester polyester chemical fiber needle-rolled non-woven fabric with a thickness of 1.2mm. The non-woven fabric is first added to the dipping tank according to a bath ratio of 1:20, and the temperatures of the three sections of the dipping tank are controlled to be 32℃, 22℃, and 18℃ respectively, and the dipping time of each section is 40min. The liquid rate of the rubber roller is 100-300%. Then it is dried and stretched to shape. The drying temperature of the drying and stretching is controlled to be 200℃, the drying time is 2.0min, and then cooled and shaped to obtain a chemical fiber sheet. Comparative Example

[0039] Comparative Example 1 is a method for preparing a chemical fiber board disclosed in the present invention, which is different from Example 1 in that, in S1, coffee grounds are not used.

[0040] Comparative Example 2 is a method for preparing a chemical fiber board disclosed in the present invention, which is different from Example 1 in that, in S1, no dispersant is used.

[0041] Comparative Example 3 is a method for preparing a chemical fiber board disclosed in the present invention, which is different from Example 1 in that, in S1, no surface modifier is used.

[0042] Comparative Example 4 is a method for preparing a chemical fiber board disclosed in the present invention, which is different from Example 1 in that, in S3, synthetic beeswax is not used.

[0043] Comparative Example 5 is a method for preparing a chemical fiber board disclosed in the present invention, which is different from Example 1 in that, in S3, ivy extract and butoxydiglycol are not used.

[0044] Comparative Example 6 is a method for preparing a chemical fiber board disclosed in the present invention, which is different from Example 1 in that zinc pyrrolidone carboxylate and scleroglucan are not used in S3. Performance testing

[0045] The 1 mm chemical fiber sheets prepared in Examples 1 to 15 and Comparative Examples 1 to 6 were subjected to performance tests, wherein the antibacterial performance was tested with reference to the QB / T2881-2013 standard; the ammonia removal rate was tested with reference to the GB / T 33610.2-2017 standard; the chemical fiber sheets were placed at -15°C, folded in half for multiple times, and the appearance changes at the folded portion were observed, and the number of low-temperature bending resistance and the corresponding shape retention rate were tested. The test results are shown in Table 1.

[0046] Table 1 Test items Escherichia coli inhibition rate Ammonia removal rate Low temperature resistance bending times Shape retention Example 1 95% 84% 1000 65% Example 2 90% 89% 900 67% Example 3 88% 90% 900 68% Example 4 90% 84% 900 64% Example 5 87% 93% 900 65% Example 6 96% 89% 900 67% Example 7 94% 87% 800 63% Example 8 92% 90% 1100 70% Example 9 89% 91% 900 62% Example 10 90% 92% 1000 65% Embodiment 11 91% 88% 1000 68% Example 12 96% 87% 900 70% Embodiment 13 98% 85% 900 65% Embodiment 14 99% 89% 900 64% Embodiment 15 95% 93% 1000 67% Comparative Example 1 87% 5% 1000 67% Comparative Example 2 93% 78% 600 55% Comparative Example 3 85% 81% 500 50% Comparative Example 4 82% 16% 400 58% Comparative Example 5 89% 80% 800 75% Comparative Example 6 56% 64% 1000 82% As can be seen from Table 1, by changing the technical parameters in each preparation step of the chemical fiber board in Examples 1 to 15, the product performance of the chemical fiber board also changes irregularly, among which the masterbatch prepared in Example 1 has the best comprehensive performance; In Comparative Example 1, after the coffee grounds were not added, although the antibacterial performance and low-temperature bending resistance did not decrease significantly, the ammonia removal rate decreased significantly, which shows that the coffee grounds have a significant deodorizing function. It can be seen from Comparative Examples 2 to 3 that the dispersant can effectively improve the dispersibility of the coffee grounds during use, reduce particle agglomeration, and improve the low-temperature performance and shape retention of the chemical fiber board. The surface modifier can significantly improve the low-temperature bending and shape retention of the chemical fiber board, which improves the compatibility between the coffee grounds particles and the latex particles. In addition, Comparative Examples 4 to 6 show that by precisely controlling the addition amounts of synthetic beeswax, ivy extract and butoxydiglycol, as well as zinc pyrrolidonecarboxylate and scleroglucan in the dipping solution, the adhesion strength, odor suppression, and moisturizing film-forming performance between the non-woven fabric surface and the modified coffee grounds can be controlled in turn during the dipping process, thereby further enhancing the viscosity, low-temperature bendability resistance and shape retention of the chemical fiber board.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A method for preparing a chemical fiber board, characterized in that: The following steps are included: S1: In a ball mill, 20-50 parts of coffee grounds, 0.10-1.00 parts of a dispersant, 1.00-4.00 parts of a surface modifier, and 0.20-0.50 parts of a pH adjuster are added, and water is added to 100 parts, and a ball milling reaction is performed. After the reaction is completed, a modified coffee grounds dispersion is obtained by post-treatment; S2: adding 40.00-60.00 parts of latex and 10.00-40.00 parts of the modified coffee grounds dispersion obtained in S1 into a dipping tank, and adding water to 100 parts to obtain a dipping solution; S3: configuring the dipping tank into three sections in sequence along the conveying direction of the non-woven fabric, and adding 5.00-25.00 g / L of synthetic beeswax, 6.00-14.00 g / L of ivy extract and butoxydiglycol, and 25.00-30.00 g / L of zinc pyrrolidonecarboxylate and scleroglucan to the dipping solution prepared in S2 in the three sections respectively; S4: the non-woven fabric is dipped in the dipping tank obtained in S3, and then dried, stretched and shaped, and then cooled and shaped to obtain a chemical fiber sheet.

2. The method for preparing a chemical fiber board according to claim 1, characterized in that: In S1, the particle size of the coffee grounds is controlled to be in the range of 5 to 50 μm.

3. The method for preparing a chemical fiber board according to claim 1, characterized in that: In S1, the dispersant is one or a combination of sodium dodecyl sulfonate, sodium dodecylbenzene sulfonate, disodium lauryl sulfosuccinate, potassium monododecyl phosphate, ammonium fatty alcohol polyoxyethylene ether sulfate, and coconut acid diethanolamide.

4. The method for preparing a chemical fiber board according to claim 1, characterized in that: In the S1, the surface modifier is one or a combination of isopropyl distearate acyloxyaluminate, isopropyl dioleate acyloxy (dioctyl phosphate acyloxy) titanate, isopropyl tris (dioctyl phosphate acyloxy) titanate, isopropyl trisostearate titanate, bis (dioctyl pyrophosphate) ethylene titanate, γ-glycidylpropyl-trimethoxysilane, γ-methacryloxypropyl-trimethoxysilane, γ-aminopropyl-trimethoxysilane, γ-mercaptopropyl-trimethoxysilane, and vinyl triethoxysilane.

5. The method for preparing a chemical fiber board according to claim 1, characterized in that: In S1, the pH regulator is hydrochloric acid and / or sodium hydroxide to control the pH value of the modified coffee grounds dispersion to be 4-10.

6. The method for preparing a chemical fiber board according to claim 1, characterized in that: In S1, the ball milling reaction is carried out at room temperature. During the ball milling process, all valves are closed, and no gas exchange is performed with the external atmosphere. The ball milling speed is controlled to be 100-500 rpm, the ball milling time is 1-4 h, and the mass ratio of the reactant to the grinding ball is 30-100:

1.

7. The method for preparing a chemical fiber board according to claim 1, characterized in that: In S2, the solid content of the latex is 50-60%, and the latex is one or a combination of natural latex, styrene butadiene latex, carboxylated styrene butadiene latex, chloroprene latex, and vinyl acetate-ethylene copolymer latex.

8. The method for preparing a chemical fiber board according to claim 1, characterized in that: In the S3, the mass ratio of ivy extract to butoxydiglycol is 0.4-0.8:0.2-0.6, and the mass ratio of zinc pyrrolidonecarboxylate to scleroglucan is 0.1-0.2:2.4-2.

8.

9. The method for preparing a chemical fiber board according to claim 1, characterized in that: In the S4, the non-woven fabric is needle-shaped from 0.4MM polyester polyester chemical fiber with a thickness of 0.4~2.0mm, and the non-woven fabric is added to the dipping tank according to a bath ratio of 1:10~20, and the temperatures of the three sections of the dipping tank are controlled to be 30~35℃, 20~25℃, and 10~25℃ respectively, and the dipping time of each section is 30~60min, the liquid rate of the rubber roller is 100~300%, and the drying temperature of the drying and stretching setting is controlled to be 160~220℃, and the drying time is 0.5~5.0min.

10. A chemical fiber board, characterized in that: Prepared by the preparation method according to any one of claims 1 to 9.