Preparation method of stable super-hydrophobic antibacterial cotton woven fabric based on glutaraldehyde cross-linking

A technology of glutaraldehyde cross-linking and cotton fabrics, which is applied in the direction of plant fibers, textiles and papermaking, and liquid-repellent fibers, can solve the problems of weakening superhydrophobicity, losing antibacterial properties, and containing toxicity, and achieves the preparation method Simple, good antibacterial effect

Active Publication Date: 2020-06-12
JIANGSU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the antibacterial fabrics with nano-silver particles are prone to coating peeling off under various conditions (physical wear, chemical corrosion, fabric washing, etc.), thus losing antibacterial properties.
In the above method of preparing antibacterial fabrics, relying on superhydrophobic antibacterial fabrics, their superhydrophobicity decreases with time, which is easy to breed bacteria, and conventional superhydrophobic fabrics need to use fluorine-containing compounds, which are toxic and not suitable for skin-friendly Preparation of fabrics, and adding nano-silver antibacterial fabrics is prone to the problem of coating peeling off, which is also a defect in fabric antibacterial aspects

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Preparation method of stable super-hydrophobic antibacterial cotton woven fabric based on glutaraldehyde cross-linking
  • Preparation method of stable super-hydrophobic antibacterial cotton woven fabric based on glutaraldehyde cross-linking
  • Preparation method of stable super-hydrophobic antibacterial cotton woven fabric based on glutaraldehyde cross-linking

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Wash the cotton fabric with deionized water and absolute ethanol in turn, and then dry it at 60°C;

[0027] (2) Add 1.0mol silver nitrate and 4.0mol tannic acid into water to obtain a mixed solution, adjust the pH value of the mixed solution to 7.1, then ultrasonically treat it for 10 minutes, and soak the dried cotton fabric in the mixed solution in step (1) , at 30°C, with a stirring speed of 80r / min, stirring and reacting for 4 hours, taking out the reacted cotton fabric, washing it with deionized water and absolute ethanol in turn, and drying at 80°C for 3 hours;

[0028] (3) Dissolve glutaraldehyde in ethanol and dilute to obtain a solution B with a glutaraldehyde concentration of 1 wt%, soak the dried cotton fabric in step (2) in solution B, react at 25°C for 18 hours, take out After the reaction, the cotton fabric was washed with deionized water and absolute ethanol successively, and dried at 75° C. for 4 hours;

[0029] (4) Put the cotton fabric dried in st...

Embodiment 2

[0031] (1) Wash the cotton fabric with deionized water and absolute ethanol successively, and then dry it at 80°C;

[0032] (2) Add 1.0mol silver nitrate and 3.2mol tannic acid into methanol to obtain a mixed solution, adjust the pH value of the mixed solution to 8.0, then ultrasonically treat it for 5 minutes, and soak the dried cotton fabric in the mixed solution in step (1) , at 25°C, with a stirring speed of 100r / min, stirring and reacting for 6 hours, taking out the reacted cotton fabric, washing it with deionized water and absolute ethanol in turn, and drying at 85°C for 5 hours;

[0033] (3) Dissolving glutaraldehyde in water and diluting to obtain a solution B with a glutaraldehyde concentration of 3wt%, soaking the dried cotton fabric in step (2) in solution B, reacting at 40°C for 12 hours, and taking out the reaction After the cotton fabric is washed with deionized water and absolute ethanol successively, and dried at 80° C. for 3 hours;

[0034] (4) Put the cotton...

Embodiment 3

[0036] (1) Wash the cotton fabric with deionized water and absolute ethanol in turn, and then dry it at 70°C;

[0037] (2) Add 1.0mol silver nitrate and 4.8mol tannic acid into ethanol to obtain a mixed solution, adjust the pH value of the mixed solution to 8.8, then ultrasonically treat it for 15 minutes, and soak the dried cotton fabric in the mixed solution in step (1) , at 40°C, with a stirring speed of 120r / min, stirring and reacting for 2 hours, taking out the reacted cotton fabric, washing it with deionized water and absolute ethanol in turn, and drying at 75°C for 2 hours;

[0038] (3) Dissolve glutaraldehyde in methanol and dilute to obtain a solution B with a glutaraldehyde concentration of 5 wt%, soak the dried cotton fabric in step (2) in solution B, react at 35°C for 24 hours, and take out After the reaction, the cotton fabric was washed with deionized water and absolute ethanol successively, and dried at 85° C. for 2 hours;

[0039] (4) Put the dried cotton fabr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a preparation method of a stable super-hydrophobic antibacterial cotton woven fabric based on glutaraldehyde cross-linking. The preparation method comprises the following stepsof step (1), cleaning and drying the cotton woven fabric; step (2), adding silver nitrate and tannic acid into a solvent, adjusting the pH value, performing ultrasonic treatment, adding the dried cotton woven fabric in step (1), stirring, taking out the cotton woven fabric after the reaction, and cleaning and drying; step (3), diluting glutaraldehyde, adding the dried cotton woven fabric in step(2), reacting, taking out the cotton woven fabric, and cleaning and drying; and step (4), dipping the dried cotton woven fabric in step (3) into a low surface energy substance for modification, and then cleaning and drying the cotton woven fabric to obtain the glutaraldehyde cross-linked stable super-hydrophobic antibacterial cotton woven fabric. The preparation method is simple and the antibacterial effect of the prepared product is stable; the low surface energy substance adopted by the invention is fluorine-free and non-toxic, and is skin-friendly; and after hydrophobic modification, stablesuper-hydrophobicity can be achieved.

Description

technical field [0001] The invention relates to the technical field of functional fabrics, in particular to a method for preparing a stable superhydrophobic antibacterial cotton fabric based on glutaraldehyde crosslinking. Background technique [0002] The hydrophobic finishing of the fabric is beneficial to realize the multifunctionality of the fabric, and is conducive to enhancing the self-cleaning, antifouling and antibacterial effects of the fabric. The conventional method of preparing super-hydrophobic fabrics is to first construct micro-nano-sized rough structures on the surface of the fabrics, and then obtain the required super-hydrophobic fabrics through finishing with low-surface hydrophobic modifiers. In recent years, conventional antibacterial superhydrophobic fabrics either rely on superhydrophobicity to inhibit bacteria, or introduce silver nanoparticles to enhance antibacterial properties. [0003] In recent years, mussel biomimetic technology has been applied...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/65D06M13/238D06M13/123D06M13/252D06M13/513D06M101/06
CPCD06M11/65D06M13/238D06M13/123D06M16/00D06M13/513D06M13/252D06M2101/06D06M2200/12
Inventor 欧军飞马骥王法军李文
Owner JIANGSU UNIV OF TECH
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