Preparation method of self-cleaning cotton fabric based on light-induced polymer free radicals for degrading pollutants
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A polymer and free radical technology, applied in plant fiber, textiles, papermaking, fiber treatment, etc., can solve the problems of poor fiber feel, easy to fall off, difficult fiber surface uniform dispersion, etc., to achieve excellent mechanical properties and high fastness Effect
Inactive Publication Date: 2013-11-27
ZHEJIANG SCI-TECH UNIV
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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.
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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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Embodiment 1
[0034] Manufacturing method of self-cleaning cotton fabric based on photoinduced macromolecule free radical degradation of pollutants:
[0035] Preparation of degradable pollutant cotton fabric:
[0036] 1) Add 15g of sulfonated polyether ether ketone with a sulfonation degree of 70.3% to 500mL of deionized water, and heat it to 50°C under an ultrasonic environment to dissolve;
[0037] 2) Add 5g polyvinyl alcohol into 500mL deionized water, swell in cold water for 2 hours, then heat to 85°C and stir to dissolve;
[0038] 3) Add the dissolved sulfonated polyether ether ketone into the dissolved polyvinyl alcohol, heat to 70°C, add HCl to adjust the pH to 2.3, add 6wt% crosslinking agent glutaraldehyde after 5 minutes, and stir vigorously 5min, make 1L finishing solution, and cool to room temperature;
[0039] 4) Soak a square piece of cotton cloth in the cooled finishing solution, control the bath ratio to 1:20, soak for 50 minutes and squeeze the liquid, one dip and one rol...
Embodiment 2~ Embodiment 5
[0054] Change the amount of SPEEK, H donor, SPEEK sulfonation degree, pH value, crosslinking agent dosage, impregnation time, extrusion rate, pre-baking temperature and time, and baking temperature and time in each 1L finishing solution.
[0055]
[0056]
[0057] Table 1, the technological formula of each embodiment
[0058]
[0059] The performance test of the cotton fabric after table 2, each embodiment process
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 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, in particular to a method for preparing self-cleaning cotton fabrics based on light-induced macromolecule free radical degradation of pollutants. [0002] Background technique [0003] Smart surfaces with self-cleaning functions have a very broad application prospect in daily life and industry. Its application in the fields of glass, ceramics, automobiles and textiles can reduce environmental pollution and water and electricity consumption caused by cleaning. Therefore, under the premise that the world attaches great importance to environmental and energy issues, the research on self-cleaning surfaces has become one of the hot issues that people pay attention to. In the textile field, self-cleaning fabrics with pollutant degradation function can not only alleviate the environmental and energy problems caused by washing, but also effectively shield and eliminate various environmental pollution ...
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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