CN111379167B - Preparation method of antibacterial and uvioresistant cotton fabric with composite functions - Google Patents
Preparation method of antibacterial and uvioresistant cotton fabric with composite functions Download PDFInfo
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- CN111379167B CN111379167B CN202010175075.9A CN202010175075A CN111379167B CN 111379167 B CN111379167 B CN 111379167B CN 202010175075 A CN202010175075 A CN 202010175075A CN 111379167 B CN111379167 B CN 111379167B
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/46—Compounds containing quaternary nitrogen atoms
- D06M13/47—Compounds containing quaternary nitrogen atoms derived from heterocyclic compounds
- D06M13/473—Compounds containing quaternary nitrogen atoms derived from heterocyclic compounds having five-membered heterocyclic rings
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- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
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- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
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- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/25—Resistance to light or sun, i.e. protection of the textile itself as well as UV shielding materials or treatment compositions therefor; Anti-yellowing treatments
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Abstract
A preparation method of an antibacterial and uvioresistant cotton fabric with composite functions comprises the steps of soaking the cotton fabric in a tannic acid aqueous solution by water phase immersion, shaking the cotton fabric in a table for oscillation reaction, taking the cotton fabric out, sequentially washing the cotton fabric with deionized water and absolute ethyl alcohol by ultrasonic waves, and drying to obtain a fabric with a tannic acid layer attached to the surface; then further soaking the fabric in an ethanol solution of a functional compound with antibacterial and uvioresistant properties for shaking reaction in a shaking table, taking out the fabric, sequentially ultrasonically washing the fabric by using deionized water and absolute ethyl alcohol, and then drying the fabric in vacuum to obtain an antibacterial and uvioresistant composite functional cotton fabric with the surface taking tannic acid as a bridging group chemical bonding functional compound; the antibacterial and ultraviolet-resistant cotton fabric has good soaping resistance and high-efficiency and lasting antibacterial property, after 50 times of washing, the sterilizing rate can still reach 95% -100%, the Ultraviolet Protection Factor (UPF) is still larger than 40, the application is wide, the preparation process is simple, the environment is protected, the cost is low, and the antibacterial and ultraviolet-resistant cotton fabric is suitable for large-scale production.
Description
Technical Field
The invention relates to a preparation method of a cotton fabric with composite functions, in particular to a preparation method of an antibacterial and anti-ultraviolet cotton fabric with composite functions.
Background
With the improvement of the requirement on the wearability of the textiles and the attention on the functionality, the multi-component and multi-functionalization becomes the mainstream of the research and development of the current textiles, and the research and development of the novel multifunctional textiles are more and more paid more attention by researchers. Therefore, the research and development of the multifunctional fabric with flame retardance, ultraviolet protection, antibiosis and the like has important scientific significance and practical application value for expanding the application of the fabric and improving the life quality of people. At present, the textile with multiple functions obtained in industry usually carries out multiple finishing on the textile respectively, and the other solution is to synthesize a multifunctional finishing agent through copolymerization, or graft monomers with different functions on the surface of the textile through surface graft copolymerization, or treat different functional molecules on the surface of the textile through a layer-by-layer self-assembly technology, or finish organic monomers and inorganic oxides with different functions on the surface of the textile through a sol-gel technology, so as to endow the textile with multiple functions. Tang et al reduce Au + on cotton fabric into AuNPs by in-situ reduction method, show antibacterial property to Escherichia coli and good blocking effect to UV (Tang B., et al. Cellulose 2017, 24(10), 4547-4560), Zhou et al bond Ag + on the surface of silk fabric by in-situ reduction method with baicalin as natural reducing agent and stabilizer to form AgNPs, show good antibacterial property to Escherichia coli and Staphylococcus aureus (Zhou Y., et al. journal of Cleaner Production, 2018,170(1):940-949), Li et al first deposit flower-like nano TiO2 on the surface of cotton fabric by hydrothermal deposition method, then pre-treat with sodium hydroxide solution to uniformly form AgNPs with high deposition density on the surface of TiO2@ cotton, the compounded fabric has 99% antibacterial property to Escherichia coli and Staphylococcus aureus, and simultaneously, the UV-resistant performance is very strong due to the existence of AgNPs and TiO2 (Li S., et al. International journal of nanomedicine, 2017,12: 2593.). The method has the defects of poor stability, high implementation cost, complex reaction route and the like. In order to make up for the defects, a multifunctional reaction molecule is designed and developed, a functional fabric with multiple effects can be obtained by one-step finishing, and meanwhile, the durability of the fabric is kept by utilizing the reactivity of the fabric, so that the fabric has important significance for obtaining high-performance textiles with stable performance and good durability.
Disclosure of Invention
The invention solves the problems of poor stability, high implementation cost, complex reaction route and the like in the traditional method for manufacturing the cotton fabric with the antibacterial and ultraviolet-resistant composite functions.
The technical scheme adopted by the invention is as follows: a preparation method of an antibacterial and uvioresistant composite functional cotton fabric comprises the following steps:
dissolving tannic acid in a trihydroxymethyl aminomethane-hydrochloric acid buffer solution with the pH value of 8-10 to obtain a tannic acid solution, wherein the concentration of the tannic acid is 1-3 g/L;
soaking a cotton fabric in the tannic acid solution obtained in the first step at a bath ratio of 1: 80-1: 100, carrying out shaking reaction on a table for 6-10 hours at 25-30 ℃, taking out the cotton fabric, sequentially carrying out ultrasonic washing on the fabric by using deionized water and ultrasonic washing by using absolute ethyl alcohol, and drying at 50-60 ℃ to obtain the cotton fabric with the tannic acid layer attached to the surface;
step three, soaking the cotton fabric with the surface attached with the tannin layer, which is obtained after the treatment in the step two, in an ethanol solution of a functional compound with antibacterial and uvioresistant performances and the concentration of which is 0.01-1 mol/L according to a bath ratio of 1: 80-1: 100, adjusting the pH value of the ethanol solution to 8-10 by using triethylamine, and taking out the cotton fabric after shaking reaction for 12-24 hours in a shaking table at the temperature of 30-40 ℃;
step four: and then sequentially carrying out ultrasonic washing on the fabric by using deionized water and ultrasonic washing by using absolute ethyl alcohol, and drying the fabric for 5-8 hours in vacuum at the temperature of 40-60 ℃ to obtain the antibacterial and uvioresistant composite functional cotton fabric with the surface using the tannic acid as a bridging group chemical bonding functional compound.
Further, the shaking table in the second step and the third step is vibrated, and the vibration speed is 200-300 r/min.
Further, the functional compound with antibacterial and uvioresistant properties is 1- (3-aminopropyl) -3- (2- (4-acetophenone-3-hydroxyphenoxy) -2-acetoxyl) -1-imidazole chloride salt (I), and the molecular structural formula is as follows:
further, the functional compound with antibacterial and uvioresistant properties is 1- (3-aminopropyl) -3- (2- (4-acetophenone-3-hydroxyphenoxy) -2-acetoxyl) -1-benzimidazole chloride salt, and the molecular structural formula is as follows:
further, the 1- (3-aminopropyl) -3- (2- (4-acetophenone-3-hydroxyphenoxy) -2-acetoxyl) -1-imidazole chloride salt or the 1- (3-aminopropyl) -3- (2- (4-acetophenone-3-hydroxyphenoxy) -2-acetoxyl) -1-benzimidazole chloride salt is prepared by adopting a nucleophilic substitution reaction method.
The invention has the advantages and characteristics that:
(1) by utilizing the covalent-non-covalent (Van der Waals force, hydrogen bond, pi-pi) interaction between pyrogallol in polyphenol-tannin molecules and the surface of cotton fabric, a powerful method can be provided for firmly combining functional molecules on the surface of the fabric; the pyrogallol in the tannin molecule is easily oxidized into a quinoid structure in an alkaline environment, so that the pyrogallol and the functional molecule containing mercaptan (SH), amino (NH2) or imino (NH) are subjected to Michael addition and Schiff base reaction, the functional molecule is effectively introduced onto the surface of the material, the functional molecule can directly react with the amino in the functional compound to fix the functional compound on the surface, other adhesives and coupling agents are not required to be added, the reaction condition is mild, the reaction process is simple, the used reagents are wide in source and low in price, and the method is a green, environment-friendly, novel and efficient method for preparing the antibacterial and anti-ultraviolet composite function cotton fabric, low in cost, free of adding additional adhesives or coupling agents and free of environmental pollution.
(2) The fabric has lasting performance obtained by chemically bonding the functional compound on the surface of the fabric. The antibacterial and uvioresistant composite functional fabric prepared by the method has good soaping-resistant degree and high-efficiency and lasting antibacterial property, after 50 times of washing, the sterilizing rate can still reach 95% -100%, the Ultraviolet Protection Factor (UPF) is still more than 40, the application is wide, the preparation process is simple, the environment is protected, the cost is low, and the method is suitable for large-scale production.
(3) The invention obtains the tannin modification layer which is firmly combined on the surfaces of various fabrics by an impregnation method, and the bionic modification layer has excellent stability, reactivity and biocompatibility.
Detailed Description
The invention is further illustrated below with reference to example 1:
example 1
Dissolving 0.1g of tannic acid in 0.1L of tris-hydroxymethyl-aminomethane-hydrochloric acid buffer solution with pH of 7.9 to obtain 1g/L tannic acid solution; soaking 1.25g of cotton fabric in the obtained tannic acid solution, performing oscillation reaction at the speed of 200r/min for 6 hours at the temperature of 25 ℃, taking out the cotton fabric, performing ultrasonic washing with deionized water and absolute ethyl alcohol in sequence, drying at the temperature of 60 ℃ to obtain the cotton fabric with the tannic acid layer attached to the surface, immersing the cotton fabric with the tannic acid layer attached to the surface in 0.01mol/L of 0.01mol/L ethanol solution of 1- (3-aminopropyl) -3- (2- (4-acetophenone-3-hydroxyphenoxy) -2-acetoxyl) -1-imidazolium chloride compound, adjusting the pH of the solution to be 7.9 with triethylamine, performing oscillation reaction at the speed of 200r/min for 12 hours at the temperature of 30 ℃, taking out the cotton fabric, performing ultrasonic washing with the deionized water and the absolute ethyl alcohol in sequence, performing vacuum drying on the fabric for 5 hours at the temperature of 50 ℃, the antibacterial and uvioresistant composite functional cotton fabric with the surface chemically bonded with 1- (3-aminopropyl) -3- (2- (4-acetophenone-3-hydroxyl phenoxy) -2-acetoxyl) -1-imidazole chloride salt by taking tannic acid as a bridging group is obtained.
After the obtained fabric is washed for 50 times, the sterilization rate reaches 94 percent, and the Ultraviolet Protection Factor (UPF) reaches 43 percent.
Example 2
Dissolving 0.2g of tannic acid in 0.1L of tris-hydroxymethyl-aminomethane-hydrochloric acid buffer solution with pH of 8.5 to obtain a tannic acid solution with a concentration of 2 g/L; soaking 1.25g of cotton fabric in the obtained tannic acid solution, performing oscillation reaction at the speed of 200r/min for 8 hours at the temperature of 28 ℃, taking out the cotton fabric, sequentially performing ultrasonic washing by deionized water and absolute ethyl alcohol, drying at the temperature of 60 ℃ to obtain the cotton fabric with the tannic acid layer attached to the surface, immersing the silk fabric with the tannic acid layer attached to the surface in 0.1L of ethanol solution of 0.01 mol/L1- (3-aminopropyl) -3- (2- (4-acetophenone-3-hydroxyphenoxy) -2-acetoxyl) -1-imidazolium chloride compound, adjusting the pH of the solution to be 8.5 by triethylamine, performing oscillation reaction at the speed of 200r/min for 12 hours at the temperature of 30 ℃, taking out the cotton fabric, sequentially performing ultrasonic washing by deionized water and absolute ethyl alcohol, and (3) drying the fabric in vacuum at 50 ℃ for 8 hours to obtain the antibacterial and anti-ultraviolet composite functional cotton fabric with the surface chemically bonded with 1- (3-aminopropyl) -3- (2- (4-acetophenone-3-hydroxyphenoxy) -2-acetoxy) -1-imidazole chloride salt by taking tannic acid as a bridging group.
After the obtained fabric is washed for 50 times, the sterilization rate reaches 96 percent, and the Ultraviolet Protection Factor (UPF) reaches 45 percent.
Example 3
Dissolving 0.2g of tannic acid in 0.1L of tris-hydroxymethyl-aminomethane-hydrochloric acid buffer solution with pH of 9 to obtain a tannic acid solution with a concentration of 2 g/L; soaking 1.25g of cotton fabric in the obtained tannic acid solution, performing oscillation reaction at the speed of 300r/min for 10 hours at the temperature of 28 ℃, taking out the cotton fabric, performing ultrasonic washing with deionized water and absolute ethyl alcohol in sequence, drying at the temperature of 60 ℃ to obtain the cotton fabric with a tannic acid layer attached to the surface, immersing the cotton fabric with the tannic acid layer attached to the surface in 0.1L of ethanol solution of a 1- (3-aminopropyl) -3- (2- (4-acetophenone-3-hydroxyphenoxy) -2-acetoxyl) -1-imidazolium chloride compound with the concentration of 0.05mol/L, adjusting the pH of the solution to be 9 with triethylamine, performing oscillation reaction at the speed of 300r/min for 24 hours at the temperature of 40 ℃, taking out the cotton fabric, performing ultrasonic washing with the deionized water and the absolute ethyl alcohol in sequence, and (3) drying the fabric in vacuum at 50 ℃ for 6 hours to obtain the antibacterial and anti-ultraviolet composite functional cotton fabric with the surface chemically bonded with 1- (3-aminopropyl) -3- (2- (4-acetophenone-3-hydroxyphenoxy) -2-acetoxy) -1-imidazole chloride salt by taking tannic acid as a bridging group.
After the obtained fabric is washed for 50 times, the sterilization rate reaches 97 percent, and the Ultraviolet Protection Factor (UPF) reaches 49 percent.
Example 4
Dissolving 0.3g of tannic acid in 0.1L of tris-hydroxymethyl-aminomethane-hydrochloric acid buffer solution having a pH of 8.5 to obtain a tannic acid solution having a concentration of 3 g/L; soaking 1.25g of cotton fabric in the obtained tannic acid solution, performing oscillation reaction at the speed of 200r/min for 8 hours at the temperature of 30 ℃, taking out the cotton fabric, performing ultrasonic washing with deionized water and absolute ethyl alcohol in sequence, drying at the temperature of 55 ℃ to obtain the cotton fabric with a tannic acid layer attached to the surface, soaking the cotton fabric with the tannic acid layer attached to the surface in 0.1L of ethanol solution of a 1- (3-aminopropyl) -3- (2- (4-acetophenone-3-hydroxyphenoxy) -2-acetoxyl) -1-imidazolium chloride compound with the concentration of 0.5mol/L, adjusting the pH of the solution to be 9 with triethylamine, performing oscillation reaction at the speed of 200r/min for 20 hours at the temperature of 30 ℃, taking out the cotton fabric, performing ultrasonic washing with the deionized water and the absolute ethyl alcohol in sequence, and (3) drying the fabric for 6 hours in vacuum at 50 ℃ to obtain the antibacterial and uvioresistant fabric with the surface chemically bonded with a plurality of functional molecules by using the tannic acid as a bridging group.
After the obtained fabric is washed for 50 times, the sterilization rate reaches 96 percent, and the Ultraviolet Protection Factor (UPF) reaches 47 percent.
Example 5
Dissolving 0.3g of tannic acid in 0.1L of tris-hydroxymethyl-aminomethane-hydrochloric acid buffer solution with pH of 9 to obtain a tannic acid solution with a concentration of 3 g/L; soaking 1.25g of cotton fabric in the obtained tannic acid solution, performing oscillation reaction at the speed of 300r/min for 10 hours at the temperature of 30 ℃, taking out the cotton fabric, performing ultrasonic washing with deionized water and absolute ethyl alcohol in sequence, drying at the temperature of 60 ℃ to obtain the cotton fabric with a tannic acid layer attached to the surface, immersing the cotton fabric with the tannic acid layer attached to the surface in 0.1L of ethanol solution of 1 mol/L1- (3-aminopropyl) -3- (2- (4-acetophenone-3-hydroxyphenoxy) -2-acetoxyl) -1-imidazolium chloride compound, adjusting the pH of the solution to be 8 with triethylamine, performing oscillation reaction at the speed of 200r/min for 24 hours at the temperature of 35 ℃, taking out the cotton fabric, performing ultrasonic washing with the deionized water and the absolute ethyl alcohol in sequence, and (3) drying the fabric in vacuum at 50 ℃ for 6 hours to obtain the cotton fabric with the antibacterial and anti-ultraviolet composite functions, the surface of which is chemically bonded with 1- (3-aminopropyl) -3- (2- (4-acetophenone-3-hydroxyphenoxy) -2-acetoxyl) -1-imidazole chloride salt by taking tannic acid as a bridging group.
After the obtained fabric is washed for 50 times, the sterilization rate reaches 98 percent, and the Ultraviolet Protection Factor (UPF) reaches 52 percent.
Example 6
Dissolving 0.25g of tannic acid in 0.1L of tris-hydroxymethyl-aminomethane-hydrochloric acid buffer solution having a pH of 9.7 to obtain a tannic acid solution having a concentration of 2.5 g/L; soaking 1.25g of cotton fabric in the obtained tannic acid solution, performing oscillation reaction at the speed of 300r/min for 8 hours at the temperature of 30 ℃, taking out the cotton fabric, performing ultrasonic washing with deionized water and absolute ethyl alcohol in sequence, drying at the temperature of 60 ℃ to obtain the cotton fabric with a tannic acid layer attached to the surface, immersing the cotton fabric with the tannic acid layer attached to the surface in 0.1L of ethanol solution of 1- (3-aminopropyl) -3- (2- (4-acetophenone-3-hydroxyphenoxy) -2-acetoxyl) -1-imidazolium chloride salt compound, adjusting the pH of the solution to 9.7 with triethylamine, performing oscillation reaction at the speed of 200r/min for 24 hours at the temperature of 40 ℃, taking out the cotton fabric, performing ultrasonic washing with deionized water and absolute ethyl alcohol in sequence, performing vacuum drying on the fabric for 8 hours at the temperature of 50 ℃, the antibacterial and uvioresistant composite functional cotton fabric with the surface chemically bonded with 1- (3-aminopropyl) -3- (2- (4-acetophenone-3-hydroxyl phenoxy) -2-acetoxyl) -1-imidazole chloride salt by taking tannic acid as a bridging group is obtained.
After the obtained fabric is washed for 50 times, the sterilization rate reaches 95 percent, and the Ultraviolet Protection Factor (UPF) reaches 46 percent.
Example 7
Dissolving 0.2g of tannic acid in 0.1L of tris-hydroxymethyl-aminomethane-hydrochloric acid buffer solution with pH of 8.5 to obtain a tannic acid solution with a concentration of 2 g/L; soaking 1.0g of cotton fabric in the obtained tannic acid solution, performing oscillation reaction at the speed of 200r/min for 8 hours at the temperature of 28 ℃, taking out the cotton fabric, performing ultrasonic washing with deionized water and absolute ethyl alcohol in sequence, drying at the temperature of 60 ℃ to obtain the cotton fabric with a tannic acid layer attached to the surface, immersing the silk fabric with the tannic acid layer attached to the surface in 0.1L of ethanol solution of a 1- (3-aminopropyl) -3- (2- (4-acetophenone-3-hydroxyphenoxy) -2-acetoxy) -1-benzimidazole chloride compound with the concentration of 0.01mol/L, adjusting the pH of the solution to 8.5 with triethylamine, performing oscillation reaction at the speed of 200r/min for 12 hours at the temperature of 30 ℃, taking out the cotton fabric, performing ultrasonic washing with the deionized water and the absolute ethyl alcohol in sequence, and (3) drying the fabric in vacuum at 40 ℃ for 8 hours to obtain the cotton fabric with the antibacterial and anti-ultraviolet composite functions, the surface of which is chemically bonded with 1- (3-aminopropyl) -3- (2- (4-acetophenone-3-hydroxyphenoxy) -2-acetoxy) -1-benzimidazole chloride salt by taking tannic acid as a bridging group.
After the obtained fabric is washed for 50 times, the sterilization rate reaches 96 percent, and the Ultraviolet Protection Factor (UPF) reaches 47 percent.
Example 8
Dissolving 0.3g of tannic acid in 0.1L of tris-hydroxymethyl-aminomethane-hydrochloric acid buffer solution with pH of 9 to obtain a tannic acid solution with a concentration of 3 g/L; soaking 1.0 cotton fabric in the obtained tannic acid solution, performing oscillation reaction at the speed of 300r/min for 10 hours at the temperature of 30 ℃, taking out the cotton fabric, performing ultrasonic washing with deionized water and absolute ethyl alcohol in sequence, drying at the temperature of 60 ℃ to obtain the cotton fabric with the tannic acid layer attached to the surface, immersing the cotton fabric with the tannic acid layer attached to the surface in 0.1L of ethanol solution of 1 mol/L1- (3-aminopropyl) -3- (2- (4-acetophenone-3-hydroxyphenoxy) -2-acetoxy) -1-benzimidazole chloride compound, adjusting the pH of the solution to be 8 with triethylamine, performing oscillation reaction at the speed of 200r/min for 24 hours at the temperature of 35 ℃, taking out the cotton fabric, performing ultrasonic washing with deionized water and absolute ethyl alcohol in sequence, and (3) drying the fabric in vacuum at 60 ℃ for 6 hours to obtain the antibacterial and anti-ultraviolet composite function cotton fabric with the surface chemically bonded with 1- (3-aminopropyl) -3- (2- (4-acetophenone-3-hydroxyphenoxy) -2-acetoxy) -1-benzimidazole chloride salt by taking tannic acid as a bridging group.
After the obtained fabric is washed for 50 times, the sterilization rate reaches 96 percent, and the Ultraviolet Protection Factor (UPF) reaches 47 percent.
The invention utilizes the characteristics of the tannin in the oxidation self-polymerization behavior and the secondary reaction activity in the alkaline environment, utilizes the designed double-function molecules containing amino groups, and can controllably chemically bond the functional compound with antibacterial and uvioresistant performances on the surface of the cotton fabric by adjusting the pH value of the solution, thereby preparing the cotton fabric with the antibacterial and uvioresistant composite functions, which has lasting functions, stable performance and no public hazard and has wide application prospect in the industry.
The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only for the purpose of illustrating the structural relationship and principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A preparation method of an antibacterial and uvioresistant composite functional cotton fabric is characterized by comprising the following steps:
dissolving tannic acid in a trihydroxymethyl aminomethane-hydrochloric acid buffer solution with the pH value of 8-10 to obtain a tannic acid solution, wherein the concentration of the tannic acid is 1-3 g/L;
soaking a cotton fabric in the tannic acid solution obtained in the first step at a bath ratio of 1: 80-1: 100, carrying out shaking reaction on a table for 6-10 hours at 25-30 ℃, taking out the cotton fabric, sequentially carrying out ultrasonic washing on the fabric by using deionized water and ultrasonic washing by using absolute ethyl alcohol, and drying at 50-60 ℃ to obtain the cotton fabric with the tannic acid layer attached to the surface;
soaking the cotton fabric with the tannin layer attached to the surface, which is obtained after the treatment in the second step, in an ethanol solution of a functional compound with antibacterial and uvioresistant properties, the concentration of which is 0.01-1 mol/L, according to a bath ratio of 1: 80-1: 100, adjusting the pH of the ethanol solution to 8-10 by using triethylamine, and taking out the cotton fabric after shaking reaction for 12-24 hours in a shaking table at the temperature of 30-40 ℃; the functional compound with antibacterial and uvioresistant properties is 1- (3-aminopropyl) -3- (2- (4-acetophenone-3-hydroxy phenoxy) -2-acetoxyl) -1-imidazole chloride salt, and the molecular structural formula is as follows:
and step four, sequentially carrying out ultrasonic washing on the fabric by using deionized water and ultrasonic washing by using absolute ethyl alcohol, and drying the fabric for 5-8 hours in vacuum at the temperature of 40-60 ℃ to obtain the antibacterial and uvioresistant composite functional cotton fabric with the surface using tannic acid as a bridging group chemical bonding functional compound.
2. The preparation method of the antibacterial and ultraviolet-resistant composite functional cotton fabric according to claim 1 is characterized by comprising the following steps of: and oscillating the shaking table in the second step and the third step, wherein the oscillation speed is 200-300 r/min.
3. The preparation method of the antibacterial and ultraviolet-resistant composite functional cotton fabric according to claim 1 is characterized by comprising the following steps of: the functional compound with antibacterial and uvioresistant properties is 1- (3-aminopropyl) -3- (2- (4-acetophenone-3-hydroxyphenoxy) -2-acetoxyl) -1-benzimidazole chloride salt, and the molecular structural formula is as follows:
4. the preparation method of the antibacterial and ultraviolet-resistant composite functional cotton fabric according to claim 1 or 3, which is characterized by comprising the following steps of: the 1- (3-aminopropyl) -3- (2- (4-acetophenone-3-hydroxyphenoxy) -2-acetoxyl) -1-imidazole chloride salt or the 1- (3-aminopropyl) -3- (2- (4-acetophenone-3-hydroxyphenoxy) -2-acetoxyl) -1-benzimidazole chloride salt is prepared by adopting a nucleophilic substitution reaction method.
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|---|---|---|---|---|
| CN104313889A (en) * | 2014-10-22 | 2015-01-28 | 武汉纺织大学 | Preparation method of photosensitive antibacterial fabric |
| CN104532559A (en) * | 2014-11-13 | 2015-04-22 | 苏州威尔德工贸有限公司 | A silk/cotton fabric afterfinish method based on tea polyphenol |
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2020
- 2020-03-13 CN CN202010175075.9A patent/CN111379167B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104313889A (en) * | 2014-10-22 | 2015-01-28 | 武汉纺织大学 | Preparation method of photosensitive antibacterial fabric |
| CN104532559A (en) * | 2014-11-13 | 2015-04-22 | 苏州威尔德工贸有限公司 | A silk/cotton fabric afterfinish method based on tea polyphenol |
Non-Patent Citations (1)
| Title |
|---|
| Tannic acid NPs - Synthesis and immobilization onto a solid surface in a one-step process and their antibacterial and anti-inflammatory properties;Perelshtein, Ilana等;《ULTRASONICS SONOCHEMISTRY》;ELSEVIER;20141130;第21卷(第6期);1916-1920 * |
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