Antifogging coating, manufacture method and antifogging glass thereof

The technology of an anti-fog coating and its production method is applied in the field of anti-fog glass, polymer anti-fog coating and its production, which can solve the problems of not being resistant to wiping and short service life of anti-fog materials, and achieve anti-aging and anti-fog performance , good anti-fog performance, long-lasting and effective anti-fog effect

Active Publication Date: 2014-10-08
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention designs an anti-fog coating and its production method and anti-fog glass. The technical problems it solves are that the existing anti-fog materials have a short service life, are not resistant to wiping and need to be used repeatedly, and the existing anti-fog materials are exposed to temperature and humidity differences. Fog in larger environments

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: This embodiment provides a kind of preparation method of anti-fog coating, comprises the following steps:

[0023] The surface of the transparent glass was ultrasonically cleaned with acetone and water, then physically polished, washed with water and then dried for later use.

[0024] Dissolve 2.5g of maleic anhydride grafted polyethylene, 5g of nano-silica particle solution treated with silane coupling agent, and 0.5g of concentrated sulfuric acid in 500mL of acetone and tetrahydrofuran mixed solution (volume ratio 1:2), Stir well to obtain a mixed solution. The mixed solution was spin-coated on the glass surface treated in the previous step at a speed of 2000 rpm. Then, under vacuum condition, take it out after heating at 95°C for 12 hours.

[0025] Dissolve 10g of polyvinyl alcohol in 100g of aqueous solution, add 2.5g of zwitterionic surfactant thiobetaine, stir well, and then spin-coat this mixed solution at a speed of 4000rpm on the glass surface t...

Embodiment 2

[0027] Embodiment 2: This embodiment provides a kind of preparation method of anti-fog coating, comprises the following steps:

[0028] The surface of the transparent glass was ultrasonically cleaned with acetone and water, then physically polished, washed with water and then dried for later use.

[0029] Dissolve 2.5g of maleic anhydride-grafted polyethylene, 5g of nano-alumina particle solution treated with silane coupling agent, and 0.5g of concentrated sulfuric acid in 500mL of acetone and tetrahydrofuran mixed solution (volume ratio 1:2), and stir Evenly, a mixed solution was obtained. The mixed solution was spin-coated on the glass surface treated in the previous step at a speed of 2000 rpm. Then, under vacuum condition, take it out after heating at 95°C for 12 hours.

[0030] Dissolve 9.5g of polyacrylamide in 100g of aqueous solution, add 5g of surfactant polyoxyethylene lauryl ether, stir well, and then spin-coat the mixed solution at a speed of 4000rpm on the glass...

Embodiment 3

[0032] Embodiment 3: This embodiment provides a kind of preparation method of anti-fog coating, comprises the following steps:

[0033] The surface of the transparent plastic PC board is ultrasonically cleaned with ethanol and water, then physically polished, cleaned with water and then dried for later use.

[0034] Dissolve 2.5g of maleic anhydride grafted polyethylene, 5g of nano-silica particle solution treated with silane coupling agent, and 0.5g of concentrated sulfuric acid in 500mL of acetone and tetrahydrofuran mixed solution (volume ratio 1:2), Stir well to obtain a mixed solution. The mixed solution was spin-coated at a speed of 2000rpm on the plastic PC surface that had been treated in the previous step. Then, under vacuum condition, take it out after heating at 80° C. for 12 hours.

[0035] Dissolve 9.5g of polyacrylamide in 100g of aqueous solution, add 3g of surfactant tetradecyl sulfopropyl dimethyl betaine, stir evenly, and spin-coat this mixed solution at a ...

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PUM

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Abstract

The invention relates to an antifogging coating, a manufacture method and antifogging glass thereof. The manufacture method comprises of the following steps:1, preprocessing the surface of a transparent material, namely, degreasing by using an organic solvent A, carrying out physical polishing, washing sequentially by tap water and distilled water, and drying; 2, mixing 5-10 parts by mass of maleic anhydride-grafted polyethylene, 10-40 parts by mass of inorganic nanometer material processed by a silane coupling agent and 1-5 parts by mass of catalyst into an organic reagent B, coating the surface of the transparent material processed in the step 1, and carrying out thermal processing on the transparent material in vacuum; and 3, dissolving 8-10 parts by mass of high-molecular polymer with hydrophilic functional groups and 2-6 parts by mass of surfactant into water, mixing uniformly, then coating the surface of the transparent material treated in the step 2, and carrying out thermal processing in vacuum so as to obtain the long-acting antifogging coating on the surface of the transparent material.

Description

technical field [0001] The invention relates to the field of anti-fog technology, in particular to a polymer anti-fog coating, a manufacturing method thereof and anti-fog glass. Background technique [0002] In daily life, we often encounter the phenomenon that transparent materials will condense and dew due to the temperature difference in the environment, forming densely packed small water droplets. Due to the existence of these tiny water droplets, light will be refracted and reflected when passing through the glass, which will significantly reduce the light transmittance of the glass, seriously affect the clarity, and bring serious consequences. For example, the fogging of the car window will affect the driver's sight, and the fogging of the doctor's surgical mask will interfere with the operation. [0003] Currently widely used anti-fog products with surfactant as the main component, the anti-fog time of the coating is very short, generally within 10-15 days, and with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/34
Inventor 洪丽熊建民陈大华徐蕤秦玉林
Owner CHERY AUTOMOBILE CO LTD
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