Self-cleaning coating, self-cleaning fiber, self-cleaning carpet and uses thereof

A self-cleaning and coating technology, applied in the field of self-cleaning, can solve the problems of disappearance of hydrophilicity, pollution, affecting the service life of products, etc., to reduce the electrostatic adsorption force, improve the self-cleaning rate, and prolong the service life.

Active Publication Date: 2020-03-20
刘峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, superhydrophilic technology is often polluted by sediments formed by organic matter in the air in practical applications, resulting in the disappearance of hydrophilicity over time; while superhydrophobic technology is not only affected by the above-mentioned organic matter pollution, but also due to superhydrophobicity. The surface forms a micron or nanoscale peak-valley rough structure. Once ultra-fine pollutants in the air (such as ultra-fine carbon particles from automobile exhaust) are embedded in the peak-valley structure, the particles cannot be washed by water due to their hydrophobic properties. The formation of surface dirt will seriously affect the service life of related products

Method used

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  • Self-cleaning coating, self-cleaning fiber, self-cleaning carpet and uses thereof
  • Self-cleaning coating, self-cleaning fiber, self-cleaning carpet and uses thereof
  • Self-cleaning coating, self-cleaning fiber, self-cleaning carpet and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0092] The preparation method of coating: get titanium chloride 19g and dissolve in 1000ml water, slowly add ammoniacal liquor (30%) 30g with the speed of 1g per minute, after stirring for 1 hour, after washing precipitation 3 times with deionized water, add hydrogen peroxide (30%) % solution) 100g degummed under the environment of 15 ℃ for 12 hours, put it into the hydrothermal reaction kettle and heat it under the condition of 120 ℃ for 8 hours to obtain a translucent nitrogen-doped titanium oxide sol, which is a spindle Shape, control the aspect ratio of the spindle shape between 2 and 4, and the crystallinity > 95%.

[0093] The above-mentioned paint is sprayed on the glass by physical deposition method, and prepared into Glass Product Example 1-1;

[0094]Apply the above paint evenly on the surface of the nylon fiber, then soak the fiber in 1% perfluorooctyl silane methanol solution for 24 hours, take it out and dry it to get self-cleaning carpet example 1-2.

Embodiment 2

[0096] The preparation method of coating: get titanium sulfate 24g to be dissolved in 1000ml water, slowly add ammoniacal liquor (30%) 30g with the speed of 1g per minute, after stirring for 1 hour, after washing precipitation 3 times with deionized water, add hydrogen peroxide (30%) Solution) 100g degummed at 20°C for 12 hours to obtain a stable sol, add 1g of triethanolamine, put it into a hydrothermal reaction kettle and heat it at 110°C for 12 hours to obtain a translucent nitrogen-doped A sol of titanium oxide. The sol is in a spindle shape, the aspect ratio of the spindle shape is controlled between 2 and 4, and the crystallinity is more than 95%.

[0097] The above-mentioned paint is sprayed on the glass by physical deposition method to prepare glass product Example 2-1;

[0098] Apply the above paint evenly on the surface of the nylon fiber, then soak the fiber in 1% perfluorooctyl silane methanol solution for 24 hours, take it out and dry it to obtain Self-cleaning C...

Embodiment 3

[0100] The preparation method of the paint: Take 8g of 8nm spherical hydroxyl surface-modified titanium oxide, disperse it in 1000ml of water, stir it at high speed for 30 minutes, and set it aside for use. Take 15g of 10nm spherical silica alkaline sol (30%wt), disperse in the above dispersion, and stir for 10 minutes normally. Take 10 g of 50 nm spherical silica alkaline sol (40% wt), disperse it in the above dispersion liquid, and stir it for 10 minutes normally.

[0101] The above-mentioned paint is sprayed on the glass by physical deposition method to prepare glass product Example 3-1;

[0102] Apply the above paint evenly on the surface of the nylon fiber, then soak the fiber in 1% perfluorooctyl silane methanol solution for 24 hours, take it out and dry it to obtain Self-cleaning Carpet Example 3-2.

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Abstract

Provided are a self-cleaning coating, a self-cleaning fiber, a self-cleaning carpet and uses thereof. The self-cleaning coating is provided with a porous structure where pores communicate with one another; the volume of the pores comprised in the coating makes up 20%-98% of the total volume of the coating; and the pore diameter of the pores in the porous structure is between 0.5nm-50nm. The self-cleaning coating is mainly prepared from host materials; the host materials are one or more of titanium oxide, zirconia, titanium nitride, silicon oxide, tungsten oxide, g-C3N4 semiconducting polymer,perovskite semiconductor, silver, iron, gold, aluminum, copper, zinc, tin and platinum. The self-cleaning coating has a strong self-cleaning effect and can markedly prolong the service life of a corresponding product.

Description

[0001] This application claims the priority of a Chinese patent application with application number 201810364723.8 titled "Self-cleaning coating" filed with the China Patent Office on April 23, 2018, the entire contents of which are incorporated herein by reference. technical field [0002] The invention relates to the technical field of self-cleaning, in particular to a self-cleaning coating, a self-cleaning fiber, a self-cleaning carpet and applications thereof. Background technique [0003] With the development of society and the improvement of people's quality of life, self-cleaning products have attracted more and more attention. According to the different principles of self-cleaning, there are currently two types of products on the market: super-hydrophobic and super-hydrophilic. Among them, super-hydrophilic technology is to form a water film on its surface to take away and isolate pollutants, thereby achieving self-cleaning effect; Super-hydrophobic technology is to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/16C09D5/24C09D7/61D06M11/46D06M13/513D06M11/79D06M11/58D06M11/48A47G27/02D06M101/34
CPCC09D1/00C09D5/1687C09D5/24D06M11/46D06M11/58D06M11/79D06M13/513D06M11/48A47G27/02D06M2101/34D06M2200/01D06M11/74D06M11/83D06M11/44D06M11/45D06M15/643D06M2200/12D06M23/08C09D5/1681B82Y30/00C03C17/006C09D7/61C09D7/62C09D7/67C09D7/70C09D7/80C01G25/02C01B21/0615C01G23/0536C01G23/0532C01P2002/54C01P2004/10C03C17/256C03C2217/212C03C2217/23C03C2217/24C03C2217/22C03C2217/219C03C2217/71C03C2218/112B82Y40/00D06M11/78
Inventor 刘峰
Owner 刘峰
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