A kind of anti-fog self-cleaning weakened ultraviolet glass coating and preparation method thereof

A glass coating and self-cleaning technology, applied in antifouling/underwater coatings, polyether coatings, radiation-absorbing coatings, etc., can solve the problems of increasing driving hazards, reducing glass transmittance, and increasing cleaning costs, etc., to achieve Excellent anti-fog performance, good self-cleaning ability and bactericidal ability, long anti-fog time effect

Active Publication Date: 2020-05-08
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Glass is ubiquitous in life, but in cold winter or humid rainy season, the water vapor in the hot air in the cab or inside the car will condense into dewdrops on the cold glass surface, which reduces the light transmittance of the glass and affects the line of sight, greatly Increased the danger of driving; the mist generated on the glass of the building brings inconvenience to life, and at the same time increases additional cleaning costs
[0003] The anti-fog time of existing commercial anti-fog coatings is generally 2-7 days. The anti-fog time is short and requires frequent cleaning. At the same time, excessive ultraviolet rays will pass through under strong sunlight, causing serious damage to the skin.

Method used

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  • A kind of anti-fog self-cleaning weakened ultraviolet glass coating and preparation method thereof
  • A kind of anti-fog self-cleaning weakened ultraviolet glass coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] An anti-fog self-cleaning and weakening ultraviolet glass coating, the coating comprises the following components and content by weight: the coating comprises the following components and content by weight: 0.7 parts of emulsifier, 0.8 parts of polyvinyl alcohol, 0.8 parts of anionic surfactant , 1 part of photocatalyst, 1 part of sodium metasilicate, 10 parts of isopropanol, 5 parts of glycerin, 0.1 part of essence, 40 parts of ethanol and 40.6 parts of water, wherein the emulsifier is octylphenol polyoxyethylene ether, anion The surfactant is sodium polyacrylate, and the photocatalyst is g-C 3 N 4 / BiOIO 3 catalyst of light.

[0027] When the paint is prepared, after mixing the components, the mixture is stirred under a magnetic stirrer for half an hour.

[0028] The paint was used for car windshield, bathroom vanity mirror, home glass, and glass vanity mirror respectively. The anti-fog test was carried out according to the SKFI anti-fog performance test method. Th...

Embodiment 2

[0035] An anti-fog self-cleaning and weakening ultraviolet glass coating, the coating comprises the following components and content in parts by weight: 0.1 parts of emulsifier, 1.5 parts of polyvinyl alcohol, 0.2 parts of anionic surfactant, 1.3 parts of photocatalyst, 0.1 parts of sodium metasilicate 15 parts of isopropanol, 3 parts of glycerin, 0.3 parts of essence, 30 parts of ethanol and 70 parts of water.

[0036] Among them, the emulsifier is octylphenol polyoxyethylene ether; the anionic surfactant is sodium polyacrylate; the photocatalyst is g-C 3 N 4 / BiOIO 3 Photocatalyst; essence is clove oil.

[0037] g-C 3 N 4 / BiOIO 3 The photocatalyst consists of g-C 3 N 4 , Bi(NO 3 )·5H 2 O and KIO3 Prepared by hydrothermal reaction. g-C 3 N 4 / BiOIO 3 The preparation process of the photocatalyst is as follows: the g-C 3 N 4 , Bi(NO 3 )·5H 2 O and KIO 3 Add it into water at a molar ratio of 4:1:1.2, stir it magnetically for half an hour, then add it into an a...

Embodiment 3

[0040] An anti-fog self-cleaning and weakening ultraviolet glass coating, the coating comprises the following components and content in parts by weight: 1.5 parts of emulsifier, 0.1 part of polyvinyl alcohol, 1.3 parts of anionic surfactant, 0.1 part of photocatalyst, 1 part of sodium metasilicate 1 part, 1 part of isopropanol, 8 parts of glycerin, 0.05 parts of essence, 50 parts of ethanol and 20 parts of water.

[0041] Among them, the emulsifier is octylphenyl polyoxyethylene ether; the anionic surfactant is sodium polyacrylate; the photocatalyst is g-C 3 N 4 / BiOIO 3 Photocatalyst; essence is jasmine oil.

[0042] g-C 3 N 4 / BiOIO 3 The photocatalyst consists of g-C 3 N 4 , Bi(NO 3 )·5H 2 O and KIO 3 Prepared by hydrothermal reaction. g-C 3 N 4 / BiOIO 3 The preparation process of the photocatalyst is as follows: the g-C 3 N 4 , Bi(NO 3 )·5H 2 O and KIO 3 Add it into water at a molar ratio of 6:1:0.8, stir evenly, and react at 150°C for 10 hours, then coo...

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Abstract

The invention provides an anti-fogging self-cleaning weakening ultraviolet glass coating and a preparation method thereof. The coating is prepared from the following raw materials in percentage by mass: 0.1-1.5 parts of an emulsifier, 0.1-1.5 parts of polyving akohol, 0.2-1.3 parts of an anionic surfactant, 0.1-1.3 parts of a photocatalyst, 0.1-1 parts of sodium metasilicate, 1-15 parts of isopropanol, 3-8 parts of glycerin, 0.05-0.3 parts of essence, 30-50 parts of ethanol, and the balance of deionized water, wherein the emulsifier is octylphenol polyoxyethylene ether and octylphenyl polyoxyethylene ether; while preparing, the raw materials are mixed, and then a mixture is uniformly stirred. Compared with the prior art, the glass coating disclosed by the invention has strong photocatalytic activity and lasting fogging resistance, is capable of weakening ultraviolet light and has excellent self-cleaning ability and sterilization ability, and is easily prepared.

Description

technical field [0001] The invention belongs to the technical field of nano photocatalytic materials, and relates to an anti-fog self-cleaning and weakening ultraviolet glass coating and a preparation method thereof. Background technique [0002] There is water vapor in the air. When the water vapor with a certain partial pressure is cooled to its dew point, the water vapor will reach saturation, and small water droplets will be condensed. When the small water droplets adhere to the surface of the transparent substrate, atomization will occur. . Glass is a must-have in life. For example, glass is used as walls in buildings for the sake of beauty and brightness, windows of vehicles and other vehicles are made of glass, bathroom sliding doors, mirrors, etc. are also glass products. Glass is ubiquitous in life, but in cold winter or humid rainy season, the water vapor in the hot air in the cab or inside the car will condense into dewdrops on the cold glass surface, which reduc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D129/04C09D171/02C09D7/61C09D7/65C09D5/14C09D5/32C09D5/16C09D7/20
CPCC08L2205/025C08L2205/035C09D5/14C09D5/1687C09D5/32C09D129/04C09D171/02C08L71/02C08L91/00C08K3/34C08K3/28C08L29/04
Inventor 吴江徐凯程好强纪政朱良君周肖
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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