Super hydrophobic and antibacterial polyester fabric and preparation method thereof

Abstract

The present invention relates to a super-hydrophobic and antibacterial polyester fabric and a method for preparing the same. The fabric can be prepared by the following method: first, extracting a low-surface-energy substance from a lotus leaf; second, preparing a polyacrylic acid coating agent using acrylic acid, styrene, butyl acrylate, and the like; then, uniformly mixing the extract, the coating agent, and a pore-forming agent solution to prepare a composite coating agent; and finally, subjecting the polyester fabric to a coating finish to produce the super-hydrophobic and antibacterial polyester fabric. The surface of the super-hydrophobic and antibacterial polyester fabric prepared by the present invention contains the low-surface-energy substance extracted from the lotus leaf, exhibiting excellent super-hydrophobicity. The polyester fabric prepared by the present invention has an antibacterial rate against Escherichia coli exceeding 72.0%. Even after 10 washes, it still exhibits strong antibacterial properties against Escherichia coli, with an antibacterial rate exceeding 68.0%.

Description

Technical Field

[0001] The invention belongs to the technical field of fabric preparation, and particularly relates to a super-hydrophobic and antibacterial polyester fabric and a preparation method thereof. Background Art

[0002] The clothes we wear today are porous textiles, easily adsorbing substances like sweat, sebum, and skin debris produced by human metabolism. These metabolic products serve as a nutrient matrix for microorganisms, while the fabrics themselves become a habitat for bacteria. In recent years, hydrophobic textiles have also garnered significant attention in the industry. By leveraging this hydrophobic property, fibers can achieve self-cleaning properties, making them suitable for a variety of specialized applications. Therefore, the development of super-hydrophobic and antibacterial textiles has become a key trend in today's health development.

[0003] Polyester fabric is a commonly used chemical fiber clothing fabric in daily life. It has high strength and elastic recovery ability. Although polyester fabric has poor moisture absorption, it is very easy to dry after washing and does not deform, and has good wearability after washing. Polyester is also the most heat-resistant fabric among synthetic fiber fabrics. It has thermoplastic properties and its light resistance, acid resistance, alkali resistance and other chemical resistance properties are also very good.

[0004] Literature research shows that the super-hydrophobic and antibacterial properties of polyester fabrics have attracted widespread attention. For example, Chinese invention patent application No. 202110220467.7 discloses a hydrophobic polyester fiber and a method for preparing the same: polyester fiber pretreated with alkali solution is immersed in a dispersion obtained by dispersing graphene oxide and organosilane in an organic solvent, and finally the impregnated fiber is plasma treated to obtain the hydrophobic polyester fiber; Chinese invention patent application No. 202011347337.1 discloses a method for preparing antibacterial polyester low-stretch yarn: pretreated polyethylene terephthalate is melted and mixed, then added to a spinning metering pump to spin polyester precursor, and then a layer of antibacterial liquid is sprayed on the surface, and then dried by ultraviolet irradiation. The antibacterial and hydrophobic polyester fabrics produced by these methods still have many shortcomings. For example, the graphene dispersion used in the first method is expensive, making large-scale production impossible. The antibacterial effect of the second method is less durable, with antibacterial properties significantly declining after repeated washing and friction. Furthermore, none of the above methods can integrate antibacterial and superhydrophobic properties, failing to synergize the multiple properties of polyester fabrics.

[0005] Therefore, it is of great practical significance to improve the superhydrophobic process and antibacterial process of polyester fabrics in the existing technology to obtain polyester fabrics with high superhydrophobicity and antibacterial properties and low cost. Summary of the Invention

[0006] In view of the above-mentioned drawbacks in the prior art, the object of the present invention is to provide a super-hydrophobic and antibacterial polyester fabric and a preparation method thereof.

[0007] The present invention aims to provide a super-hydrophobic and antibacterial polyester fabric, which has the characteristics of being environmentally friendly and human-friendly. The fabric can be prepared by the following method: first, extracting low-surface-energy substances from lotus leaves; second, preparing a polyacrylic acid coating agent using acrylic acid, styrene, butyl acrylate, etc.; then, uniformly mixing the extract, the coating agent, and a pore-forming agent solution to prepare a composite coating agent; and finally, coating the polyester fabric to prepare the super-hydrophobic and antibacterial polyester fabric.

[0008] The object of the present invention is achieved through the following technical solutions:

[0009] A method for preparing a super-hydrophobic and antibacterial polyester fabric comprises the following steps:

[0010] (1) Extraction of low surface energy substances: Select lotus leaves, wash them first and then crush them, and use supercritical CO2 extraction with ethanol as an entrainer to prepare an extract, which is an ethanol solution containing low surface energy substances on the lotus leaf surface.

[0011] Preferably, the extraction pressure is 10-20 MPa, the extraction temperature is 50-60° C., the extraction time is 1-3 h, and the CO 2 flow rate is 20-30 L / h.

[0012] (2) Preparation of coating agent: Weigh sodium dodecylbenzenesulfonate, octylphenol polyoxyethylene ether (OP-10), acrylic acid, styrene, butyl acrylate and ammonium persulfate, dissolve all of sodium dodecylbenzenesulfonate, octylphenol polyoxyethylene ether (OP-10) and 1 / 3 of the total amount of acrylic acid, styrene, butyl acrylate and ammonium persulfate initiator in deionized water, stir evenly, control the temperature to 75-85°C, and stir for 1-2 hours; then, dissolve the remaining 2 / 3 of acrylic acid, styrene, butyl acrylate and ammonium persulfate initiator in deionized water and add dropwise to the mixed solution just stirred, control the addition time to 2-3 hours, and keep warm for 2-3 hours after the addition is completed; the emulsion is left for one month, and if no stratification or precipitation occurs, the polyacrylic acid coating agent can be obtained.

[0013] Preferably, the usage ratio of sodium dodecylbenzenesulfonate (g), octylphenol polyoxyethylene ether (OP-10) (g), acrylic acid (mol), styrene (mol), butyl acrylate (mol) and ammonium persulfate (g) is: 1:1-2:0.1-0.2:0.1-0.2:0.1-0.2:0.5-1.

[0014] (3) Preparation of pore-forming agent solution: Dissolve ammonium bicarbonate in tap water to prepare a pore-forming agent solution.

[0015] Preferably, the usage ratio of ammonium bicarbonate (g) to tap water (mL) is 1:100-200.

[0016] (4) Blending: The extract obtained in step (1), the coating agent obtained in step (2), and the pore-forming agent solution obtained in step (3) are uniformly mixed by a high-speed dispersing homogenizer to obtain a composite coating agent.

[0017] Preferably, the usage ratio of the extract (mL) obtained in step (1), the coating agent (mL) obtained in step (2), and the pore-forming agent solution (mL) obtained in step (3) is 1:10-20:1-2.

[0018] Preferably, the rotation speed of the high-speed dispersing homogenizer is 20,000 to 30,000 r / min; and the mixing time is 10 to 20 min.

[0019] (5) Coating finishing: Stretch the fabric tightly on the stretcher. The fabric is suitable for polyester fabric. Apply the composite coating agent evenly on the fabric with a scraper. The dry weight of the coating is 20-30 g / m 2 , dried at 90℃ for 3 minutes and baked at 140-170℃ for 10 minutes to obtain super hydrophobic and antibacterial polyester fabric.

[0020] The present invention has the following notable features:

[0021] (1) The present invention extracts low surface energy substances on the surface of lotus leaves through supercritical CO2 extraction; ammonium bicarbonate is dissolved in water to prepare a pore-forming agent solution; and the low surface energy substances on the surface of lotus leaves, the pore-forming agent solution and the polyacrylic acid coating agent are uniformly mixed.

[0022] (2) The inventors of the present application unexpectedly discovered that ammonium bicarbonate decomposes during heating and drying, forming a rough micro-nano structure on the surface of the polyester fabric; in addition, the low surface energy substances on the surface of the lotus leaf adhere to the surface of the polyester fabric, reducing the surface free energy of the polyester fabric. Under the influence of this dual effect, the polyester fabric has strong hydrophobicity and certain antibacterial properties.

[0023] (3) The surface of the super-hydrophobic and antibacterial polyester fabric prepared by the present invention contains a low-surface-energy substance extracted from lotus leaves. The apparent contact angle of water droplets on the polyester fabric ranges from 151° to 153°, showing excellent super-hydrophobicity. After 10 washes, the hydrophobicity of the polyester fabric remains unchanged. The antibacterial rate of the polyester fabric against Escherichia coli reaches over 72.0%. After 10 washes, it still exhibits a certain antibacterial property against Escherichia coli, with an antibacterial rate of over 68.0%.

[0024] (4) The super-hydrophobic and antibacterial polyester fabric prepared by the present invention has no significant weakening of its super-hydrophobicity and antibacterial properties after 10 washings, which indicates that the low surface energy substances on the surface of lotus leaves can be firmly attached to the surface of polyester fabric.

[0025] (5) The super-hydrophobic and antibacterial polyester fabric prepared by the present invention has a wide range of raw material sources, a simple preparation process, and has good market promotion prospects. DETAILED DESCRIPTION

[0026] The following examples and comparative examples illustrate the present invention in detail.

[0027] Example 1:

[0028] A method for preparing a super-hydrophobic and antibacterial polyester fabric comprises the following steps:

[0029] (1) Extraction of low surface energy substances: 1000 g of lotus leaves were selected, washed and crushed, and extracted using the supercritical CO2 method; during the extraction, the CO2 flow rate was 25 L / h, the extraction pressure was 15 MPa, the extraction temperature was 55°C, and ethanol was used as the entrainer. After extraction for 2 hours, an ethanol solution extract containing low surface energy substances on the lotus leaf surface was obtained.

[0030] (2) Preparation of coating agent: Weigh 1 g of sodium dodecylbenzenesulfonate, 1.5 g of octylphenol polyoxyethylene ether (OP-10), 0.15 mol of acrylic acid, 0.15 mol of styrene, 0.15 mol of butyl acrylate and 0.75 g of ammonium persulfate; dissolve 1 g of sodium dodecylbenzenesulfonate, 1.5 g of octylphenol polyoxyethylene ether (OP-10), 0.05 mol of acrylic acid, 0.05 mol of styrene, 0.05 mol of butyl acrylate and 0.25 g of ammonium persulfate initiator in 300 mL of deionized water. , stirring evenly, controlling the temperature to 80°C, stirring for 1.5 hours to obtain a mixed solution A; then, dissolving the remaining 0.1 mol of acrylic acid, 0.1 mol of styrene, 0.1 mol of butyl acrylate and 0.5 g of ammonium persulfate initiator in 200 mL of deionized water to obtain a mixed solution B; adding the mixed solution B dropwise to the mixed solution A just stirred, controlling the addition time to 2.5 hours, and after the addition is completed, keeping warm for 2.5 hours; leaving the emulsion for one month, if no stratification or precipitation occurs, the polyacrylic acid coating agent is obtained.

[0031] (3) Preparation of pore-forming agent solution: Dissolve 1 g of ammonium bicarbonate in 150 mL of tap water and stir evenly to prepare a pore-forming agent solution.

[0032] (4) Blending: Weigh 10 mL of the extract obtained in step (1), 150 mL of the coating agent obtained in step (2), and 15 mL of the pore-forming agent solution obtained in step (3); uniformly mix the weighed solutions in a high-speed disperser at 25,000 r / min for 15 minutes to obtain a composite coating agent.

[0033] (5) Coating finishing: Stretch the polyester fabric on the stretcher, and use a scraper to evenly apply the composite coating agent on the polyester fabric, with the coating amount being 25g / m2 dry weight. 2 Finally, the treated fabric was dried at 90°C for 3 minutes and baked at 155°C for 10 minutes to obtain a super-hydrophobic and antibacterial polyester fabric.

[0034] Example 2:

[0035] A method for preparing a super-hydrophobic and antibacterial polyester fabric comprises the following steps:

[0036] (1) Extraction of low surface energy substances: 1000 g of lotus leaves were selected, washed, crushed, and extracted using supercritical CO2. The CO2 flow rate was 20 L / h, the extraction pressure was 10 MPa, and the extraction temperature was 50°C. Ethanol was used as the entrainer. After 1 h of extraction, an ethanol solution extract containing low surface energy substances on the lotus leaf surface was obtained.

[0037] (2) Preparation of coating agent: Weigh 1 g of sodium dodecylbenzenesulfonate, 1 g of octylphenol polyoxyethylene ether (OP-10), 0.1 mol of acrylic acid, 0.1 mol of styrene, 0.1 mol of butyl acrylate and 0.5 g of ammonium persulfate; dissolve 1 g of sodium dodecylbenzenesulfonate, 1 g of octylphenol polyoxyethylene ether (OP-10), 0.033 mol of acrylic acid, 0.033 mol of styrene, 0.033 mol of butyl acrylate and 0.17 g of ammonium persulfate initiator in 300 mL of deionized water and mix evenly. The mixture was stirred at a temperature of 75°C for 1 hour to obtain a mixed solution A. The remaining 0.067 mol of acrylic acid, 0.067 mol of styrene, 0.067 mol of butyl acrylate and 0.33 g of ammonium persulfate initiator were dissolved in 200 mL of deionized water to obtain a mixed solution B. The mixed solution B was added dropwise to the mixed solution A just stirred, and the addition time was controlled to be 2 hours. After the addition was completed, the mixture was kept warm for 2 hours. The emulsion was placed for one month. If no stratification or precipitation occurred, the polyacrylic acid coating agent was obtained.

[0038] (3) Preparation of pore-forming agent solution: Dissolve 1 g of ammonium bicarbonate in 100 mL of tap water and stir evenly to prepare a pore-forming agent solution.

[0039] (4) Blending: Weigh 10 mL of the extract obtained in step (1), 100 mL of the coating agent obtained in step (2), and 10 mL of the pore-forming agent solution obtained in step (3); uniformly mix the weighed solutions in a high-speed disperser at 20,000 r / min for 10 minutes to obtain a composite coating agent.

[0040] (5) Coating finishing: Stretch the polyester fabric on the stretcher, and use a scraper to evenly apply the composite coating agent on the polyester fabric, with the coating amount being 20g / m2 dry weight. 2 Finally, the treated fabric was dried at 90°C for 3 minutes and baked at 140°C for 10 minutes to obtain a super-hydrophobic and antibacterial polyester fabric.

[0041] Example 3:

[0042] A method for preparing a super-hydrophobic and antibacterial polyester fabric comprises the following steps:

[0043] (1) Extraction of low surface energy substances: 1000 g of lotus leaves were selected, washed and crushed, and extracted using the supercritical CO2 method; during the extraction, the CO2 flow rate was 30 L / h, the extraction pressure was 20 MPa, the extraction temperature was 60°C, and ethanol was used as the entrainer. After extraction for 3 hours, an ethanol solution extract containing low surface energy substances on the lotus leaf surface was obtained.

[0044] (2) Preparation of coating agent: Weigh 1 g of sodium dodecylbenzenesulfonate, 2 g of octylphenol polyoxyethylene ether (OP-10), 0.2 mol of acrylic acid, 0.2 mol of styrene, 0.2 mol of butyl acrylate and 1 g of ammonium persulfate; dissolve 1 g of sodium dodecylbenzenesulfonate, 2 g of octylphenol polyoxyethylene ether (OP-10), 0.067 mol of acrylic acid, 0.067 mol of styrene, 0.067 mol of butyl acrylate and 0.33 g of ammonium persulfate initiator in 300 mL of deionized water and stir evenly. The mixture was stirred at 85°C for 2 h to obtain a mixed solution A. The remaining 0.133 mol of acrylic acid, 0.133 mol of styrene, 0.133 mol of butyl acrylate and 0.67 g of ammonium persulfate initiator were dissolved in 200 mL of deionized water to obtain a mixed solution B. The mixed solution B was added dropwise to the mixed solution A just stirred, and the addition time was controlled to 3 h. After the addition was completed, the mixture was kept warm for 3 h. The emulsion was left for one month. If no stratification or precipitation occurred, the polyacrylic acid coating agent was obtained.

[0045] (3) Preparation of pore-forming agent solution: Dissolve 1 g of ammonium bicarbonate in 200 mL of tap water and stir evenly to prepare a pore-forming agent solution.

[0046] (4) Blending: Weigh 10 mL of the extract obtained in step (1), 200 mL of the coating agent obtained in step (2), and 20 mL of the pore-forming agent solution obtained in step (3); uniformly mix the weighed solutions in a high-speed disperser at 30,000 r / min for 20 minutes to obtain a composite coating agent.

[0047] (5) Coating finishing: Stretch the polyester fabric on the stretcher, and use a scraper to evenly apply the composite coating agent on the polyester fabric, with the coating amount being 30g / m2 dry weight. 2 Finally, the treated fabric was dried at 90°C for 3 minutes and baked at 170°C for 10 minutes to obtain a super-hydrophobic and antibacterial polyester fabric.

[0048] Comparative Example A

[0049] Taking Example 1 as a comparison, in this comparative example, the "extraction of low surface energy substances from lotus leaves" in step (1) is not selected, that is, "selecting lotus leaves" in step (1) is changed to "selecting rice leaves", and the other preparation methods are implemented according to the preparation method of Example 1.

[0050] Comparative Example B

[0051] In contrast to Example 1, in this comparative example, "ammonium bicarbonate" in step (3) is not selected, that is, in step (4), "1 g of ammonium bicarbonate is dissolved in 150 mL of tap water and stirred evenly" is changed to "1 g of sodium carbonate is dissolved in 150 mL of tap water and stirred evenly", and the other preparation methods are implemented according to the preparation method of Example 1.

[0052] Comparative Example C

[0053] Taking Example 1 as a comparison, in this comparative example, the step (5) of "baking at 155°C for 10 minutes" was changed to "baking at 95°C for 3 minutes", and the other preparation methods were implemented according to the preparation method of Example 1.

[0054] Super hydrophobic performance test:

[0055] To better test the superhydrophobicity of the superhydrophobic and antibacterial polyester fabrics prepared in the present invention, superhydrophobic and antibacterial polyester fabrics a, b, c, d, e, and f prepared in Examples 1-3 and Comparative Examples A-C, as well as purchased superhydrophobic polyester fabrics (purchased from Shanghai Weiren Wool Textile Co., Ltd.), were selected. The apparent contact angle of a water droplet on the surface of the superhydrophobic and antibacterial polyester fabrics was measured using an XG-CAMA1 basic contact angle tester. No fewer than 30 test specimens were tested, and the average value was taken. The fabrics were then subjected to a standard wash according to the washing method in accordance with GB / T 20944.1-2007, a color fastness tester for washing fastness to washing. The superhydrophobicity of the initial sample and the sample after 10 washes were tested. The test results are shown in Table 1.

[0056] Table 1 Apparent contact angles of water droplets on superhydrophobic and antibacterial polyester fabrics a, b, c, d, e, f

[0057]

[0058] As can be seen from Table 1, the apparent contact angles of water droplets on super-hydrophobic and antibacterial polyester fabrics a, b, and c range from 151° to 153°, respectively, slightly exceeding the apparent contact angles of purchased super-hydrophobic polyester fabrics. After 10 washes, the hydrophobic properties of fabrics a, b, and c have not weakened. Generally, when the apparent contact angle is greater than 150°, it indicates that the fabric has super-hydrophobicity. Therefore, it can be considered that the super-hydrophobic and antibacterial polyester fabrics prepared by the present invention have super-hydrophobicity. The super-hydrophobic and antibacterial polyester fabrics d, e, and f prepared in Comparative Examples AC have significantly poorer super-hydrophobicity, which indicates that the selection of low surface energy substances, the selection of pore-forming agent solutions, and the baking time and temperature all have an important influence on the super-hydrophobic properties of polyester fabrics.

[0059] Antibacterial performance test:

[0060] Superhydrophobic and antibacterial polyester fabrics (a, b, c, d, e, and f) prepared in Examples 1-3 and Comparative Examples AC were subjected to antibacterial testing. The specific antibacterial testing methods were as follows: qualitative testing of the fabrics was performed using the agar diffusion method according to GB / T 20944.1-2007, "Evaluation of Antimicrobial Properties of Textiles - Part 1: Agar Plate Diffusion Method," and quantitative antibacterial activity was measured using the method described in GB / T 20944.3-2008, "Evaluation of Antimicrobial Properties of Textiles - Part 3: Oscillation Method." The bacterial species tested were Staphylococcus aureus and Escherichia coli. Qualitative results were expressed as zones of inhibition, while quantitative antibacterial activity was expressed as inhibition rates, calculated using the formula: inhibition rate = (1-B / A) × 100%, where A is the number of viable bacteria on the untreated fabric and B is the number of viable bacteria on the treated fabric. The fabrics to be tested were subjected to standard washing according to the washing method of GB / T20944.1-2007. The antibacterial properties of the initial samples and the samples after washing 10 times were tested. The test results are shown in Table 2.

[0061] Table 2 Antibacterial rate of super-hydrophobic and antibacterial polyester fabrics a, b, c, d, e, and f prepared in Examples 1-3 and Comparative Examples AC against Escherichia coli

[0062] project a b c d e f Unwashed 88.7％ 79.4％ 72.9％ 45.3％ 31.5％ 28.8％ Wash 10 times 85.3％ 73.1％ 68.5％ 23.3％ 26.6％ 17.4％

[0063] As shown in Table 2, the super-hydrophobic and antibacterial polyester fabrics a, b, and c prepared in Examples 1-3 exhibit significant antibacterial properties against E. coli. Unwashed, the super-hydrophobic and antibacterial polyester fabrics exhibited an antibacterial rate of over 72.0% against E. coli. Even after 10 washes, the super-hydrophobic and antibacterial polyester fabrics still exhibited some antibacterial properties against E. coli, with an antibacterial rate of over 68.0%. The super-hydrophobic and antibacterial polyester fabrics d, e, and f prepared in Comparative Examples AC exhibited significantly lower antibacterial rates against E. coli. This indicates that the selection of low-surface-energy materials, the choice of pore-forming agent solution, and the baking time and temperature all have significant influences on the antibacterial properties of polyester fabrics.

[0064] By studying the antibacterial performance of the superhydrophobic and antibacterial polyester fabric prepared by the present invention on Escherichia coli and the apparent contact angle of water droplets on the superhydrophobic and antibacterial polyester fabric, it can be considered that the polyester fabric prepared by the present invention has the dual functions of superhydrophobicity and antibacterial, among which the superhydrophobicity is obvious and the antibacterial performance needs to be further improved.

Claims

1. A method for preparing super-hydrophobic and antibacterial polyester fabric, characterized in that: The preparation method comprises the following steps: (1) Extraction of low surface energy substances: Select lotus leaves, wash them first and then crush them, and use supercritical CO2 extraction with ethanol as an entrainer to prepare an extract, which is an ethanol solution containing low surface energy substances on the lotus leaf surface; (2) Preparation of coating agent: Weigh sodium dodecylbenzenesulfonate, octylphenol polyoxyethylene ether (OP-10), acrylic acid, styrene, butyl acrylate and ammonium persulfate, dissolve all of sodium dodecylbenzenesulfonate, octylphenol polyoxyethylene ether (OP-10) and 1 / 3 of the total amount of acrylic acid, styrene, butyl acrylate and ammonium persulfate initiator in deionized water, stir evenly, control the temperature to 75-85°C, and stir for 1-2 hours; then, dissolve the remaining 2 / 3 of acrylic acid, styrene, butyl acrylate and ammonium persulfate initiator in deionized water and add dropwise to the mixed solution just stirred, control the addition time to 2-3 hours, and keep warm for 2-3 hours after the addition is completed; the emulsion is left for one month, and if no stratification or precipitation occurs, the polyacrylic acid coating agent can be prepared; (3) Preparation of pore-forming agent solution: dissolve ammonium bicarbonate in tap water to prepare a pore-forming agent solution; (4) blending: uniformly mixing the extract obtained in step (1), the coating agent obtained in step (2), and the pore-forming agent solution obtained in step (3) by a high-speed dispersing homogenizer to obtain a composite coating agent; (5) Coating finishing: Stretch the fabric tightly on a stretcher. The fabric is suitable for polyester fabrics. Apply the composite coating agent evenly on the fabric with a scraper. The dry weight of the coating is 20 to 30 g / m2. 2 , dried at 90℃ for 3 minutes and baked at 140-170℃ for 10 minutes to obtain super hydrophobic and antibacterial polyester fabric.

2. The method for preparing a super-hydrophobic and antibacterial polyester fabric according to claim 1, wherein: In the step (1), the extraction pressure is 10-20 MPa, the extraction temperature is 50-60° C., the extraction time is 1-3 h, and the CO 2 flow rate is 20-30 L / h.

3. The method for preparing a super-hydrophobic and antibacterial polyester fabric according to claim 1, wherein: In the step (2), the dosage ratio of sodium dodecylbenzenesulfonate, octylphenol polyoxyethylene ether (OP-10), acrylic acid, styrene, butyl acrylate and ammonium persulfate is 1g: (1-2)g: (0.1-0.2)mol: (0.1-0.2)mol: (0.1-0.2)mol: (0.5-1)g.

4. The method for preparing a super-hydrophobic and antibacterial polyester fabric according to claim 1, wherein: The usage ratio of ammonium bicarbonate to tap water in step (3) is 1 g: (100-200) mL.

5. The method for preparing a super-hydrophobic and antibacterial polyester fabric according to claim 1, wherein: In the step (4), the usage ratio of the extract obtained in step (1), the coating agent obtained in step (2) and the pore-forming agent solution obtained in step (3) is 1 mL: (10-20) mL: (1-2) mL.

6. The method for preparing a super-hydrophobic and antibacterial polyester fabric according to claim 1, wherein: In the step (4), the rotation speed of the high-speed dispersing homogenizer is 20,000 to 30,000 r / min; and the mixing time is 10 to 20 minutes.

7. A super hydrophobic and antibacterial polyester fabric, characterized in that: The invention is prepared by the method according to any one of claims 1 to 6.

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