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Preparation method of self-cleaning cotton fabric based on light-induced polymer free radicals for degrading pollutants

A polymer and free radical technology, applied in the direction of plant fibers, can solve the problems of poor fiber feel, easy to fall off, difficult fiber surface uniform dispersion, etc., and achieve excellent mechanical properties and high fastness

Inactive Publication Date: 2015-06-24
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In 2011, Walid A. Daoud et al. conducted research on nanotechnology (mainly nano-TiO) in the past five years. 2 ) to realize the self-cleaning of polymer fibers, and pointed out some problems in this method, such as inorganic TiO 2 The fastness of the combination of particles and fibers is not good, easy to fall off, the fiber feels bad, and it is difficult to disperse evenly on the surface of the fiber, etc.

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 self-cleaning cotton fabric based on light-induced polymer free radicals for degrading pollutants
  • Preparation method of self-cleaning cotton fabric based on light-induced polymer free radicals for degrading pollutants
  • Preparation method of self-cleaning cotton fabric based on light-induced polymer free radicals for degrading pollutants

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Experimental program
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Effect test

Embodiment 1

[0033] Self-cleaning cotton fabric manufacturing method based on photopolymer free radical degradation pollutants:

[0034] Preparation of degradable pollutant cotton fabric:

[0035] 1) Add 15 g of sulfonated polyether ether ketone with a degree of sulfonation of 70.3% to 500 mL of deionized water, and heat to 50°C under ultrasonic environment to dissolve;

[0036] 2) Add 5g of polyvinyl alcohol to 500mL of deionized water, swell in cold water for 2h, then heat to 85°C and stir to dissolve;

[0037] 3) Add the dissolved sulfonated polyether ether ketone to the dissolved polyvinyl alcohol, heat to 70°C, add HCl to adjust the pH to 2.3, add 6wt% of the crosslinking agent glutaraldehyde after 5 minutes, and stir vigorously 5min, configure into 1L finishing solution, and cool to room temperature;

[0038] 4) Dip a square piece of cotton cloth in the cooled finishing solution, control the bath ratio to 1:20, immerse for 50 minutes and then roll the solution, one dip and one roll, the roll ...

Embodiment 2~ Embodiment 5

[0052] Change the amount of SPEEK and H donor per 1L of finishing solution, the sulfonation degree of SPEEK, pH value, the amount of crosslinking agent, immersion time, rolling rate, pre-baking temperature and time, baking temperature and time.

[0053]

[0054] Table 1. Process formula of each embodiment

[0055]

[0056] Table 2. Performance test of cotton fabric treated in each embodiment

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Abstract

The invention discloses a manufacturing method of cotton fabric based on light-induced polymer free radicals for degrading pollutants, which belongs to the technical field of functional textiles. According to the manufacturing method, an appropriate H donor agent and a crosslinking agent are selected by utilizing the characteristic that sulfonated polyether ether ketone has high activities to H atoms in organic substances under light induction, so as to cross-link and form a film on the cotton fabric rich in hydroxyl to prepare the self-cleaning fabric which can generate the polymer free radicals by lighting and has an elimination effect on the pollutants. The manufacturing method mainly comprises the following steps: (1) preparing a composite finishing liquid of light-induced free-radical polymer, wherein the finishing liquid contains the sulfonated polyether ether ketone, H donor polymer, the crosslinking agent, HCL (hydrogen chloride) and the like; and (2) padding and baking the cotton fabric in the finishing liquid. The cotton fabric which is prepared by using the preparation method and has a function of degrading the pollutants by the light induction has the effects of antibiosis, pesticide degradation, pigment degradation and the like, can be used for common clothing, medical fabric, household fabric and the like, and has a wide application prospect.

Description

Technical field [0001] The invention belongs to the field of functional textiles, and specifically relates to a preparation method of self-cleaning cotton fabric based on photopolymer free radical degradation pollutants. Background technique [0002] The intelligent surface with automatic cleaning function has a very broad application prospect in daily life and industry. Its application in glass, ceramics, automobiles and textiles can reduce environmental pollution and water and electricity consumption caused by cleaning. Therefore, under the precondition that the world attaches great importance to environmental and energy issues, the study of self-cleaning surfaces has become one of the hot issues of concern. In the textile field, self-cleaning fabrics with pollutant degradation function can not only alleviate environmental and energy problems caused by washing, but also effectively shield and eliminate various environmental pollution such as bacteria, viruses, pesticides, and s...

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 Patents(China)
IPC IPC(8): D06M15/41D06M15/61D06M15/333D06M101/06
Inventor 林俊雄朱超汪澜
Owner ZHEJIANG SCI-TECH UNIV
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