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Self-cleaning cotton fiber and preparation method thereof

A cotton fiber, self-cleaning technology, applied in the direction of plant fiber, fiber treatment, anti-color pollution/anti-fouling fiber, etc., can solve the problem of self-cleaning performance decline, easy precipitation of nano-titanium dioxide particles and AgI nanoparticles, nano-particles and cotton The problem of low fiber bonding fastness, etc., can improve the affinity, improve the stability of water washing, and improve the rate of graft polymerization.

Pending Publication Date: 2022-05-06
LUOLAI LIFESTYLE TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the object of the present invention is to provide a kind of self-cleaning cotton fiber and preparation method thereof, be used to solve the low bonding fastness of nanometer particle and cotton fiber in the self-cleaning cotton cloth that adopts existing method to make in the prior art, Nano-titanium dioxide particles and AgI nanoparticles are easy to precipitate during the washing process of the fabric, resulting in the problem of decreased self-cleaning performance

Method used

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  • Self-cleaning cotton fiber and preparation method thereof

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preparation example Construction

[0045] The invention provides a kind of preparation method of self-cleaning cotton fiber, comprises the following steps:

[0046]A. adding particle diameter to ethanol is nano-titanium dioxide, methacrylic acid and cerium ammonium nitrate, and the concentration of methacrylic acid is 1wt%-4wt%, and the concentration of cerium ammonium nitrate is 1wt%-1.5wt% The mixed solution, the mass ratio of nano-titanium dioxide and methacrylic acid is 3-6:100; and in an inert gas atmosphere at a temperature of 50-60 ° C for 2-4h grafting reaction, followed by filtration, washing and filtering the obtained solid; then in Dry at 50-60°C for 20-30 minutes to obtain methacrylic acid-modified nano-titanium dioxide;

[0047] B. Add methacrylic acid modified nano titanium dioxide and ceric ammonium nitrate in ethanol, the concentration that is mixed with ceric ammonium nitrate is the reaction solution of 1wt%-1.5wt%, the mass ratio of methacrylic acid modified nano titanium dioxide and ceric amm...

Embodiment 1

[0054] A kind of preparation method of self-cleaning cotton fiber, concrete steps are as follows:

[0055] A. Add methacrylic acid in ethanol, after stirring, add nano-titanium dioxide and ammonium cerium nitrate with a particle diameter of 10nm, stir, and prepare a mixed solution that the concentration of methacrylic acid is 4wt%, and the concentration of ammonium cerium nitrate is 1.5wt%. , the mass ratio of nano-titanium dioxide to methacrylic acid is 6:100; and the grafting reaction is carried out in a nitrogen atmosphere at a temperature of 60°C for 4h, filtered, and the solid obtained by filtering is washed with ethanol for 3 times, each time for 1.5min, in ethanol, ethanol The volume ratio to water is 2:1; then dry at 60°C for 20 minutes to obtain methacrylic acid-modified nano-titanium dioxide;

[0056] B. add methacrylic acid in ethanol, add methacrylic acid modified nano-titanium dioxide and ceric ammonium nitrate after stirring, stir, the concentration that is mixed...

Embodiment 2

[0059] A kind of preparation method of self-cleaning cotton fiber, concrete steps are as follows:

[0060] A. Add methacrylic acid in ethanol, add the nano-titanium dioxide and cerium ammonium nitrate that particle diameter is 50nm after stirring, stir, the concentration that is mixed with methacrylic acid is 2.5wt%, the concentration of cerium ammonium nitrate is the mixing of 1.2wt% Solution, the mass ratio of nano-titanium dioxide to methacrylic acid is 5:100; and carry out grafting reaction at 55°C for 3h in a nitrogen atmosphere, filter, wash and filter the solid obtained with ethanol twice, each time for 2min; then at 55°C Dry at high temperature for 25 minutes to obtain methacrylic acid-modified nano-titanium dioxide;

[0061] B. add methacrylic acid modified nano titanium dioxide and ceric ammonium nitrate in ethanol, stir, the concentration that is mixed with ceric ammonium nitrate is the reaction solution of 1.2wt%, the mass ratio of methacrylic acid modified nano ti...

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Abstract

The invention relates to a self-cleaning cotton fiber and a preparation method thereof. The preparation method comprises the following steps: adding nano titanium dioxide, methacrylic acid and ceric ammonium nitrate into ethanol, carrying out grafting reaction in an inert gas atmosphere, filtering, washing and filtering to obtain a solid, and drying; adding the obtained methacrylic acid modified nano titanium dioxide and ceric ammonium nitrate into ethanol; soaking the cotton fiber in water, drying, placing the cotton fiber in the mixed solution in an inert gas atmosphere, carrying out grafting reaction, washing, and carrying out secondary drying. According to the invention, methacrylic acid is grafted to nano titanium dioxide through a grafting reaction to obtain methacrylic acid modified nano titanium dioxide, and then the methacrylic acid modified nano titanium dioxide is grafted to cotton fibers through the grafting reaction, that is, the nano titanium dioxide is introduced into the cotton fibers through chemical bonds; the bonding strength of the nano titanium dioxide and the cotton fibers is improved, so that the self-cleaning performance and the washable stability of the fabric are improved.

Description

technical field [0001] The invention relates to the technical field of household textiles, in particular to a self-cleaning cotton fiber and a preparation method thereof. Background technique [0002] Cotton fiber is an important textile raw material, which is a seed fiber formed by elongating and thickening the epidermal cells of fertilized ovules. The main component of cotton fiber is cellulose, accounting for about 94% of the total weight. The macromolecular structure of cotton fiber contains hydrophilic groups, which have good water absorption, hygroscopicity, easy dyeing, soft hand feeling, and moderate strength. It is often used to make home textiles. [0003] With the improvement of living standards, people have higher and higher requirements for the performance of textiles. In addition to breathability and comfort, people also require textiles to have antibacterial and self-cleaning properties. In order to endow cotton textiles with self-cleaning properties, attemp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/46D06M14/04D06M101/06
CPCD06M11/46D06M14/04D06M2101/06D06M2200/01
Inventor 宫怀瑞徐良平
Owner LUOLAI LIFESTYLE TECH CO LTD
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