Antibacterial breathable fabric and preparation method thereof

Abstract

The invention discloses an antibacterial breathable fabric in the field of textile technology and a preparation method thereof. The antibacterial breathable fabric comprises the following components in parts by weight: 80-100 parts of cotton fabric, 20-30 parts of vinyl trimethoxysilane, 40-60 parts of divinyl benzene, 30-50 parts of styrene, 10-20 parts of azobisisobutyronitrile, and 10-20 parts of antibacterial composite material, and the antibacterial composite material is prepared from the following components in parts by weight: 8-12 parts of graphene oxide, 25-36 parts of copper nitrate trihydrate, and 14-18 parts of trimesic acid. The invention proposes to prepare a copper metal organic skeleton by copper nitrate trihydrate and trimesic acid to prepare an antibacterial breathable fabric, thereby improving the antibacterial effect of the fabric and the stability of the antibacterial material.

Description

Technical Field

[0001] The invention belongs to the technical field of textiles, and specifically relates to an antibacterial breathable fabric and a preparation method thereof. Background Art

[0002] Fabrics are materials for making clothes. There are many types of them with different characteristics. Fabrics can be roughly divided into several categories, such as natural fiber fabrics, chemical fiber fabrics and blended fabrics. Among them, cotton fiber is a natural cellulose with the characteristics of good moisture absorption, good air permeability and good warmth retention. It is widely used to make various clothing and household textiles. The structure of cotton fabrics made of cotton fibers is porous, and its surface is very easy to absorb microorganisms. Sweat on the surface of human skin and dandruff on the surface of cotton fabrics can easily provide nutrition for microorganisms and cause bacterial infection in the human body. By introducing antibacterial materials into cotton fabrics, the antibacterial properties of cotton fabrics can be effectively improved. However, the selection of antibacterial materials is crucial, which directly determines the antibacterial effect of cotton fabrics. In addition, the bonding force between antibacterial materials and cotton fabrics is poor, and the antibacterial materials are easy to fall off during the use of cotton fabrics.

[0003] The existing technology currently has the following main problems: the antibacterial effect of the fabric is poor and the antibacterial material of the fabric is easy to fall off. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an antibacterial and breathable fabric and a preparation method thereof. In order to solve the problems of poor antibacterial effect of the fabric and easy shedding of the antibacterial material of the fabric, the present invention proposes to prepare a copper metal organic skeleton by copper nitrate trihydrate and trimesic acid, and add graphene oxide during the preparation process to obtain an antibacterial composite material. At the same time, vinyltrimethoxysilane is used as a connecting bridge, divinylbenzene and styrene are polymerized and cross-linked, and the antibacterial composite material is coated on the cotton fabric to obtain the antibacterial and breathable fabric, thereby improving the antibacterial effect of the fabric and the stability of the antibacterial material.

[0005] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present invention is as follows: The present invention proposes an antibacterial breathable fabric and a preparation method thereof, wherein the antibacterial breathable fabric comprises the following components in parts by weight: 80-100 parts of cotton fabric, 20-30 parts of vinyltrimethoxysilane, 40-60 parts of divinylbenzene, 30-50 parts of styrene, 10-20 parts of azobisisobutyronitrile, and 10-20 parts of antibacterial composite material.

[0006] The antibacterial composite material is prepared from the following components in parts by weight: 8-12 parts of graphene oxide, 25-36 parts of copper nitrate trihydrate, and 14-18 parts of trimesic acid.

[0007] Furthermore, the preparation method of the antibacterial composite material comprises the following steps:

[0008] S1. Take graphene oxide and add it to N,N-dimethylformamide, stir for 10-20 minutes to obtain solution A. In another beaker, take copper nitrate trihydrate and add it to N,N-dimethylformamide, stir for 10-20 minutes to obtain solution B.

[0009] S2, adding the solution B obtained in step S1 to the solution A obtained in step S1, stirring for 10-20 minutes, and ultrasonicating for 20 minutes to obtain a mixed solution C;

[0010] S3, adding trimesic acid to a mixture of deionized water and ethanol, adding the mixed solution C obtained in step S2, stirring in a water bath, transferring to a reaction kettle, heating to 100-120° C. to react for 24-30 hours, cooling to room temperature, washing and drying to obtain an antibacterial composite material.

[0011] Preferably, in S1, the amount of the graphene oxide added to the N,N-dimethylformamide is 7.5 mg / mL.

[0012] Preferably, in S1, the amount of copper nitrate trihydrate added to N,N-dimethylformamide is 4 mmol / L.

[0013] Preferably, in S2, the volume ratio of the solution B to the solution A is 1:1.

[0014] Preferably, in S3, the amount of trimesic acid added to the mixed solution of deionized water and ethanol is 2 mmol / L.

[0015] Preferably, in S3, the heating temperature of the water bath stirring is 50-60°C, the stirring speed is 100-120 rpm, and the time is 2-4 h.

[0016] Preferably, in S3, in the mixed solution of deionized water and ethanol, the volume ratio of deionized water to ethanol is 1:1.

[0017] The present invention provides a method for preparing an antibacterial breathable fabric, which specifically comprises the following steps:

[0018] (1) The cotton fabric is completely immersed in deionized water, heated at 80°C for 2-3 hours, taken out and impurities on the surface of the cotton fabric are removed with acetone, and then the residual acetone is washed with deionized water and dried to obtain the treated cotton fabric;

[0019] (2) Add vinyltrimethoxysilane, divinylbenzene and styrene to N,N-dimethylformamide and stir evenly to obtain a mixed solution;

[0020] (3) Adding azobisisobutyronitrile to the mixed solution, and then adding the antibacterial composite material and the treated cotton fabric obtained in step (1), stirring for 20-30 minutes, transferring to a reactor and reacting at 100-120° C. for 22-24 hours, cooling, washing, and drying to obtain an antibacterial breathable fabric.

[0021] Preferably, in step (2), the volume ratio of divinylbenzene to N,N-dimethylformamide is 1:10-15.

[0022] The beneficial effects achieved by the present invention are as follows:

[0023] The present invention uses copper nitrate trihydrate and trimesic acid to prepare a copper metal organic framework, and adds graphene oxide during the preparation process to obtain an antibacterial composite material, wherein the copper metal organic framework can continuously and slowly release copper ions to achieve a lasting antibacterial effect, and the flaky graphene oxide can be used as a template for the growth of the copper metal organic framework material, so that the copper metal organic framework material is loaded on the surface of the graphene oxide, thereby increasing the stability of the copper metal organic framework material, and avoiding the agglomeration of the copper metal organic frameworks, thereby improving the dispersibility of the copper metal organic framework material, and in addition, the carboxyl group of the graphene oxide can promote the growth of the copper metal organic framework, increase the active sites of the copper metal organic framework, and improve the copper metal organic framework. Antibacterial effect; by using vinyltrimethoxysilane as a connecting bridge, divinylbenzene and styrene are polymerized and cross-linked, and the antibacterial composite material is coated on the cotton fabric to prepare an antibacterial breathable fabric. The antibacterial composite material can be firmly loaded onto the cotton fabric while maintaining the original air permeability and comfort of the fabric to a great extent, thereby avoiding a large amount of shedding of the antibacterial composite material during subsequent use or cleaning, and improving the long-lasting antibacterial effect of the antibacterial breathable fabric. Among them, vinyltrimethoxysilane can dehydrate with the hydroxyl groups on the cotton fiber to form a chemical bond, increase the bonding force between the polymer and the cotton fabric, so that the polymer can firmly load the antibacterial composite material onto the cotton fabric, giving the antibacterial breathable fabric good mechanical stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The antibacterial test results of the antibacterial breathable fabrics prepared in Examples 1-3 of the present invention and Comparative Examples 1 and 2 are shown;

[0025] Figure 2 The graph is a graph showing the air permeability test results of the antibacterial breathable fabrics prepared in Examples 1-3 of the present invention and Comparative Example 2;

[0026] Figure 3 The graph is a test result of antibacterial durability of the antibacterial breathable fabrics prepared in Examples 1-3 and Comparative Examples 1-2 of the present invention;

[0027] Figure 4This is a transmission electron microscope image of the antibacterial composite material prepared in Example 1 of the present invention.

[0028] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] Unless otherwise defined, all professional and scientific terms used herein have the same meanings as those familiar to those skilled in the art. In addition, any methods and materials similar or equivalent to those described herein may be applied to the present invention. The preferred implementation methods and materials described herein are for demonstration purposes only and are not intended to limit the content of this application.

[0031] The experimental methods in the following examples are conventional methods unless otherwise specified; the experimental materials and test strains used in the following examples are purchased from commercial channels unless otherwise specified.

[0032] Example 1

[0033] An antibacterial breathable fabric is prepared by comprising the following components in parts by weight: 80 parts of cotton fabric, 20 parts of vinyltrimethoxysilane, 40 parts of divinylbenzene, 30 parts of styrene, 10 parts of azobisisobutyronitrile and 10 parts of an antibacterial composite material.

[0034] The antibacterial composite material is prepared from the following components in parts by weight: 8 parts of graphene oxide, 25 parts of copper nitrate trihydrate, and 14 parts of trimesic acid.

[0035] Furthermore, the preparation method of the antibacterial composite material comprises the following steps:

[0036] S1. Take graphene oxide in an amount of 7.5 mg / mL and add it to N,N-dimethylformamide, stir for 10 min to obtain solution A. In another beaker, take copper nitrate trihydrate in an amount of 4 mmol / L and add it to N,N-dimethylformamide, stir for 10 min to obtain solution B.

[0037] S2, adding the solution B obtained in step S1 to the solution A obtained in step S1, with the volume ratio of solution B to solution A being 1:1, stirring for 10 min, and ultrasonicating for 20 min to obtain a mixed solution C;

[0038] S3. Take trimesic acid and add it in an amount of 2 mmol / L to a mixture of deionized water and ethanol, the volume ratio of deionized water to ethanol is 1:1, add the mixed solution C obtained in step S2, stir in a water bath, the heating temperature of the water bath stirring is 50°C, the stirring speed is 100 rpm, the time is 2 h, transfer to a reactor, heat to 100°C and react for 24 h, cool to room temperature, wash and dry to obtain an antibacterial composite material.

[0039] This embodiment provides a method for preparing an antibacterial breathable fabric, which specifically includes the following steps:

[0040] (1) The cotton fabric is completely immersed in deionized water, heated at 80°C for 2 h, taken out and impurities on the surface of the cotton fabric are removed with acetone, and then the residual acetone is washed with deionized water and dried to obtain the treated cotton fabric;

[0041] (2) adding vinyltrimethoxysilane, divinylbenzene and styrene to N,N-dimethylformamide, wherein the volume ratio of divinylbenzene to N,N-dimethylformamide is 1:10, and stirring evenly to obtain a mixed solution;

[0042] (3) Add azobisisobutyronitrile to the mixed solution, then add the antibacterial composite material and the treated cotton fabric obtained in step (1), stir for 20 minutes, transfer to a reactor and react at 100° C. for 22 hours, cool, wash, and dry to obtain an antibacterial breathable fabric.

[0043] Example 2

[0044] An antibacterial breathable fabric is prepared by comprising the following components in parts by weight: 100 parts of cotton fabric, 30 parts of vinyltrimethoxysilane, 60 parts of divinylbenzene, 50 parts of styrene, 20 parts of azobisisobutyronitrile and 20 parts of an antibacterial composite material.

[0045] The antibacterial composite material is prepared from the following components in parts by weight: 12 parts of graphene oxide, 36 parts of copper nitrate trihydrate, and 18 parts of trimesic acid.

[0046] Furthermore, the preparation method of the antibacterial composite material comprises the following steps:

[0047] S1. Take graphene oxide in an amount of 7.5 mg / mL and add it to N,N-dimethylformamide, stir for 20 min to obtain solution A. In another beaker, take copper nitrate trihydrate in an amount of 4 mmol / L and add it to N,N-dimethylformamide, stir for 20 min to obtain solution B.

[0048] S2, adding the solution B obtained in step S1 to the solution A obtained in step S1, with the volume ratio of solution B to solution A being 1:1, stirring for 20 minutes, and ultrasonicating for 20 minutes to obtain a mixed solution C;

[0049] S3. Take trimesic acid in an amount of 2 mmol / L and add it to a mixture of deionized water and ethanol, the volume ratio of deionized water to ethanol is 1:1, add the mixed solution C obtained in step S2, stir in a water bath, the heating temperature of the water bath stirring is 60°C, the stirring speed is 120 rpm, the time is 4 hours, transfer to a reactor, heat to 120°C, react for 30 hours, cool to room temperature, wash and dry to obtain an antibacterial composite material.

[0050] This embodiment provides a method for preparing an antibacterial breathable fabric, which specifically includes the following steps:

[0051] (1) The cotton fabric is completely immersed in deionized water, heated at 80°C for 3 h, taken out and impurities on the surface of the cotton fabric are removed with acetone, and then the residual acetone is washed with deionized water and dried to obtain the treated cotton fabric;

[0052] (2) adding vinyltrimethoxysilane, divinylbenzene and styrene to N,N-dimethylformamide, wherein the volume ratio of divinylbenzene to N,N-dimethylformamide is 1:15, and stirring evenly to obtain a mixed solution;

[0053] (3) Add azobisisobutyronitrile to the mixed solution, then add the antibacterial composite material and the treated cotton fabric obtained in step (1), stir for 30 minutes, transfer to a reactor and react at 120° C. for 24 hours, cool, wash, and dry to obtain an antibacterial breathable fabric.

[0054] Example 3

[0055] An antibacterial breathable fabric is prepared by comprising the following components in parts by weight: 90 parts of cotton fabric, 25 parts of vinyltrimethoxysilane, 50 parts of divinylbenzene, 40 parts of styrene, 15 parts of azobisisobutyronitrile and 15 parts of an antibacterial composite material.

[0056] The antibacterial composite material is prepared from the following components in parts by weight: 10 parts of graphene oxide, 30 parts of copper nitrate trihydrate, and 16 parts of trimesic acid.

[0057] Furthermore, the preparation method of the antibacterial composite material comprises the following steps:

[0058] S1. Take graphene oxide in an amount of 7.5 mg / mL and add it to N,N-dimethylformamide, stir for 15 min to obtain solution A. In another beaker, take copper nitrate trihydrate in an amount of 4 mmol / L and add it to N,N-dimethylformamide, stir for 15 min to obtain solution B.

[0059] S2, adding the solution B obtained in step S1 to the solution A obtained in step S1, with the volume ratio of solution B to solution A being 1:1, stirring for 15 min, and ultrasonicating for 20 min to obtain a mixed solution C;

[0060] S3. Take trimesic acid in an amount of 2 mmol / L and add it to a mixture of deionized water and ethanol, the volume ratio of deionized water to ethanol is 1:1, add the mixed solution C obtained in step S2, stir in a water bath, the heating temperature of the water bath stirring is 55°C, the stirring speed is 110 rpm, the time is 3 hours, transfer to a reactor, heat to 110°C, react for 28 hours, cool to room temperature, wash and dry to obtain an antibacterial composite material.

[0061] This embodiment provides a method for preparing an antibacterial breathable fabric, which specifically includes the following steps:

[0062] (1) The cotton fabric was completely immersed in deionized water, heated at 80°C for 2.5 h, and then removed from the cotton fabric using acetone to remove impurities on the surface of the cotton fabric. The residual acetone was then washed with deionized water and dried to obtain the treated cotton fabric.

[0063] (2) adding vinyltrimethoxysilane, divinylbenzene and styrene to N,N-dimethylformamide, wherein the volume ratio of divinylbenzene to N,N-dimethylformamide is 1:13, and stirring evenly to obtain a mixed solution;

[0064] (3) Add azobisisobutyronitrile to the mixed solution, then add the antibacterial composite material and the treated cotton fabric obtained in step (1), stir for 25 minutes, transfer to a reactor and react at 110° C. for 23 hours, cool, wash, and dry to obtain an antibacterial breathable fabric.

[0065] Comparative Example 1

[0066] This comparative example provides an antibacterial breathable fabric and a preparation method thereof, which is different from Example 1 only in that the antibacterial composite material does not contain graphene oxide, and the other components and component contents are the same as those in Example 1.

[0067] Comparative Example 2

[0068] This comparative example provides an antibacterial breathable fabric and a preparation method thereof. The difference between the antibacterial breathable fabric and Example 1 is that the antibacterial breathable fabric does not contain vinyltrimethoxysilane, divinylbenzene, styrene and azobisisobutyronitrile. The preparation method of the antibacterial breathable fabric is as follows: dispersing the antibacterial composite material in ethanol to obtain a dispersion, and then soaking the cleaned cotton fabric in the dispersion to obtain the antibacterial breathable fabric. The remaining components and component contents are the same as those in Example 1.

[0069] 1. Antibacterial test

[0070] The antibacterial breathable fabrics prepared in Examples 1-3 and Comparative Examples 1-2 of the present invention were subjected to antibacterial tests, and the specific method was as follows: Escherichia coli and Staphylococcus aureus were taken as antibacterial objects, and according to the standard FZ / T 73023-2006, 0.75g±0.05g of fabrics were weighed respectively, and the antibacterial breathable fabrics prepared in Examples 1-3 and Comparative Examples 1-2 were used as the experimental group, and the untreated cotton fabric was used as the control group. The fabrics were cut into squares of 0.1cm×0.1cm in size, and added to 250mL conical flasks respectively, and 70mL of phosphate buffer was added to the conical flask, and the flask was sterilized at 120°C for 20min. After cooling, 5mL of 3×10 5 cfu / mL-4×10 5 cfu / mL of bacterial solution, oscillate at 150r / min for 18h at 24℃. After the specified time, take 1mL of the test solution, dilute it 10, 100, and 1000 times with phosphate buffer, shake well, take 1mL of each and put it into a flat plate, then pour 18mL-25mL of nutrient broth into the flat plate, cool to room temperature, invert the plate, and incubate it at 37℃ for 24h. Select the plate with a suitable dilution with a colony count of about 300 to count and calculate its inhibition rate.

[0071] Figure 1 The antibacterial test results of the antibacterial breathable fabrics prepared in Examples 1-3 and Comparative Examples 1-2 of the present invention are shown in the figure. As shown in the figure, the antibacterial rates of Escherichia coli in Examples 1-3 and Comparative Examples 1-2 are 99.7%, 99.8%, 99.9%, 93.2%, and 99.6%, respectively. The antibacterial rates of Staphylococcus aureus in Examples 1-3 and Comparative Examples 1-2 are 98.2%, 98.4%, 98.6%, 91.1%, and 98.1%, respectively. The antibacterial rates of Examples 1-3 are significantly higher than those of Comparative Example 1, indicating that the addition of graphene oxide improves the antibacterial effect of the copper metal organic framework. This is because the carboxyl group of graphene oxide can promote the growth of the copper metal organic framework, increase the active sites of the copper metal organic framework, and improve the antibacterial effect of the copper metal organic framework.

[0072] 2. Air permeability test

[0073] The air permeability of the antibacterial breathable fabrics prepared in Examples 1-3 and Comparative Example 2 of the present invention was tested, and the specific method was as follows: According to the standard DiN53-887 "Determination of Air Permeability of Fabrics", an air permeability tester was used to test the 20 cm × 20 cm antibacterial breathable fabrics prepared in Examples 1-3 and Comparative Example 2. The test conditions were: temperature (20 ± 2) ° C, relative humidity (65 ± 2)%, standard atmosphere, external pressure of 100 Pa, and 5 different positions on the fabric were measured, and the results were averaged.

[0074] Figure 2The air permeability test results of the antibacterial breathable fabrics prepared in Examples 1-3 and Comparative Example 2 of the present invention are shown in the figure. As shown in the figure, the air permeabilities of Examples 1-3 and Comparative Example 2 are 162.1 mm / s, 153.6 mm / s, 158.9 mm / s, and 166.1 mm / s, respectively. The air permeabilities of Examples 1-3 and Comparative Example 2 are very close. It can be seen that by using vinyltrimethoxysilane as a connecting bridge, divinylbenzene and styrene are polymerized and cross-linked, and the antibacterial composite material is coated on the cotton fabric, the original air permeability of the fabric can be maintained to a great extent.

[0075] 3. Durability test

[0076] The antibacterial durability test was performed on the antibacterial breathable fabrics prepared in Examples 1-3 of the present invention and Comparative Example 2. According to the standard FZ / T 73023-2006, the antibacterial breathable fabrics prepared in Examples 1-3 and Comparative Example 2 were washed by a simplified washing method. The specific operation was as follows: 2 g / L of washing liquid was prepared, and the fabrics were washed in a shaking water bath at a bath ratio of 1:30 at 40°C for 100 min. The fabrics were washed once every 5 min, i.e., 20 times respectively. After washing, the fabrics were rinsed with tap water and dried at 70°C. According to the above operation, the washed fabrics were subjected to an antibacterial test with reference to Experimental Example 1, and their antibacterial rate was calculated.

[0077] Figure 3 The antibacterial durability test results of the antibacterial breathable fabrics prepared by Examples 1-3 and Comparative Examples 1-2 of the present invention are shown in the figure. As shown in the figure, the antibacterial rates of Escherichia coli in Examples 1-3 and Comparative Examples 1-2 are 86.5%, 87.1%, 85.9%, 81.2%, and 52.7%, respectively. The antibacterial rates of Staphylococcus aureus in Examples 1-3 and Comparative Examples 1-2 are 83.5%, 83.1%, 82.9%, 79.4%, and 51.1%, respectively. The antibacterial rate of Comparative Example 2 decreases significantly, indicating that by using vinyltrimethoxysilane as a connecting bridge, divinylbenzene and styrene are polymerized and cross-linked, and the antibacterial composite material is coated on the cotton fabric, which can avoid the antibacterial composite material from falling off in large quantities during washing, thereby enhancing the antibacterial durability of the antibacterial composite material.

[0078] 4. Electron microscopy observation

[0079] The surface morphology of the antibacterial composite material prepared in Example 1 was observed using a transmission electron microscope.

[0080] Figure 4 This is a transmission electron microscope image of the antibacterial composite material prepared in Example 1 of the present invention.

[0081] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

[0082] The present invention and its implementation methods are described above, which is not restrictive. The drawings are only one of the implementation methods of the present invention, and the actual application is not limited thereto. In short, if ordinary technicians in the field are inspired by it and design methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention, they should all fall within the protection scope of the present invention.

Claims

1. An antibacterial breathable fabric, characterized in that: The antibacterial breathable fabric comprises the following components in parts by weight: 80-100 parts of cotton fabric, 20-30 parts of vinyltrimethoxysilane, 40-60 parts of divinylbenzene, 30-50 parts of styrene, 10-20 parts of azobisisobutyronitrile, and 10-20 parts of antibacterial composite material; The antibacterial composite material is prepared from the following components in parts by weight: 8-12 parts of graphene oxide, 25-36 parts of copper nitrate trihydrate, and 14-18 parts of trimesic acid; The preparation method of the antibacterial composite material comprises the following steps: S1. Take graphene oxide and add it to N,N-dimethylformamide, stir for 10-20 minutes to obtain solution A. In another beaker, take copper nitrate trihydrate and add it to N,N-dimethylformamide, stir for 10-20 minutes to obtain solution B. S2, adding the solution B obtained in step S1 to the solution A obtained in step S1, stirring for 10-20 minutes, and ultrasonicating for 20 minutes to obtain a mixed solution C; S3, adding trimesic acid to a mixture of deionized water and ethanol, adding the mixed solution C obtained in step S2, stirring in a water bath, transferring to a reaction kettle, heating to 100-120° C. to react for 24-30 hours, cooling to room temperature, washing and drying to obtain an antibacterial composite material; The preparation method of the antibacterial breathable fabric comprises the following steps: (1) The cotton fabric is completely immersed in deionized water, heated at 80°C for 2-3 hours, taken out and impurities on the surface of the cotton fabric are removed with acetone, and then the residual acetone is washed with deionized water and dried to obtain the treated cotton fabric; (2) Add vinyltrimethoxysilane, divinylbenzene and styrene to N,N-dimethylformamide and stir evenly to obtain a mixed solution; (3) Adding azobisisobutyronitrile to the mixed solution, and then adding the antibacterial composite material and the treated cotton fabric obtained in step (1), stirring for 20-30 minutes, transferring to a reactor and reacting at 100-120° C. for 22-24 hours, cooling, washing, and drying to obtain an antibacterial breathable fabric.

2. The antibacterial breathable fabric according to claim 1, characterized in that: In step S1, the amount of graphene oxide added to the N,N-dimethylformamide is 7.5 mg / mL.

3. The antibacterial breathable fabric according to claim 1, characterized in that: In step S1, the amount of copper nitrate trihydrate added to N,N-dimethylformamide is 4 mmol / L.

4. The antibacterial breathable fabric according to claim 1, characterized in that: In step S2, the volume ratio of the solution B to the solution A is 1:

1.

5. The antibacterial breathable fabric according to claim 1, characterized in that: In step S3, the amount of trimesic acid added to the mixed solution of deionized water and ethanol is 2 mmol / L.

6. The antibacterial breathable fabric according to claim 1, characterized in that: In step S3, the heating temperature of the water bath stirring is 50-60°C, the stirring speed is 100-120 rpm, and the time is 2-4 hours.

7. The antibacterial breathable fabric according to claim 1, characterized in that: In step S3, in the mixed solution of deionized water and ethanol, the volume ratio of deionized water to ethanol is 1:

1.

8. The antibacterial breathable fabric according to claim 1, characterized in that: In step (2), the volume ratio of divinylbenzene to N,N-dimethylformamide is 1:10-15.

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