Composite ultraviolet-proof coating, preparation method thereof and ultraviolet-proof glass

An anti-ultraviolet and coating technology, which is applied in the direction of radiation-absorbing coatings and coatings, can solve the problems of ineffective isolation and protection, and achieve the effect of effective isolation and protection

Inactive Publication Date: 2017-03-15
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the process of realizing the present invention, the inventor found that the prior art has at least the followi

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  • Composite ultraviolet-proof coating, preparation method thereof and ultraviolet-proof glass

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Example Embodiment

[0049] As a preferred embodiment of the present invention, TiO in the inorganic ultraviolet absorber 2 with SiO 2 , ZnO, CeO 2 and ZrO 2 The weight ratio of at least one of them is 1-3:1. Inorganic ultraviolet absorbers within this ratio range can better cover the wavelength range of 290-400nm of ultraviolet rays, have better absorption effect on ultraviolet rays, and have higher transmittance of visible light.

[0050] In practical applications, it is preferred that the particle size of the inorganic UV absorber is 5-260nm, and the specific surface area is 86-140m 2 / g, more preferably the particle size of the inorganic UV absorber is 5-80nm, and the specific surface area is 86-140m 2 / g, the particle size of the inorganic ultraviolet absorber is too large to easily cause light scattering, and the specific surface area is 86-140m 2 / g of porous nano-powder can absorb organic UV absorbers, effectively reduce the loss of organic UV absorbers, and prolong the service life o...

Example Embodiment

[0085] Embodiment 1: This embodiment provides a method for preparing an anti-ultraviolet coating and an anti-ultraviolet glass, comprising the following steps:

[0086] (1) Dissolving the organic ultraviolet absorber 2-(2'-hydroxy-3',5'-di-tert-amylphenyl)benzotriazole in acetone to obtain the first mixed solution with a mass percentage content of 0.3% ;

[0087] The PMMA ultrafine powder with a particle diameter of 5.5 μm was dissolved with acetone to obtain a second mixed solution with a PMMA mass percentage content of 3%;

[0088] The particle size is 15-20nm, the pore size is 5-9nm, and the specific surface area is 140m 2 / g TiO 2 After mixing with the ZnO porous nano powder material according to the mass ratio of 1:1, add the ethanol / glycerol (volume ratio of 8:1) solution of the dispersant DisperBYK-190 and stir at a high speed to obtain the first slurry, wherein the stirring speed is 1200 rpm, stirring for 90 minutes, the content of the dispersant DisperBYK-190 is Ti...

Example Embodiment

[0091] Embodiment 2: This embodiment provides a method for preparing an anti-ultraviolet coating and an anti-ultraviolet glass, comprising the following steps:

[0092] (1) Dissolving the organic ultraviolet absorber 2-(2H-benzotriazol-2-yl)-4-methyl-6-(2-propenyl)phenol in ethanol to obtain 8% by mass percent the first mixed solution;

[0093] Dissolving PMMA ultrafine powder with a particle size of 6 μm in tetrahydrofuran to obtain a second mixed solution with a PMMA mass percentage content of 1%;

[0094] The particle size is 20-80nm, the pore size is 12-20nm, and the specific surface area is 100m 2 / g TiO 2 After mixing with the ZnO porous nano-powder material according to the mass ratio of 1:1, add it to the ethanol / glycerol (volume ratio of 9:1) solution containing the dispersant DisperBYK-160 and stir at a high speed to obtain the first slurry, wherein the stirring speed 1200 rpm, stirring for 100 minutes, the content of the dispersant DisperBYK-160 is TiO 2 and 2% ...

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Abstract

The invention discloses a composite ultraviolet-proof coating, a preparation method thereof and ultraviolet-proof glass. The composite ultraviolet-proof coating comprises organic ultraviolet absorbents, inorganic ultraviolet absorbents, polymethyl methacrylate, organic solvents or mixed solution of the organic solvents and water, wherein the inorganic ultraviolet absorbents are TiO2 and at least one of SiO2, ZnO, CeO2 and ZrO2, and the organic solvents are at least one of ethyl alcohol, isopropanol, glycerol, acetone, methyl ethyl ketone, benzene, methylbenzene, diethyl ether, ethyl acetate, butanone, tetrahydrofuran and dimethylformamide. The composite ultraviolet-proof coating can effectively isolate and protect UV (ultraviolet) within the wavelength range of 290-400 nanometers.

Description

technical field [0001] The invention relates to an anti-ultraviolet coating, in particular to a composite anti-ultraviolet coating, a preparation method thereof and an anti-ultraviolet glass. Background technique [0002] The energy of ultraviolet (UV) irradiated on the ground accounts for about 4% of the total solar radiation, of which UV-B (280-320nm) and UV-A (320-400nm) account for almost all of the UV irradiated on the ground Energy, while UV with a wavelength less than 290nm is easily absorbed by ozone in the atmosphere. Since UV radiation can cause damage to human skin and automotive interior parts, it is necessary to perform anti-UV treatment on automotive glass to prevent UV from entering the interior of the car. [0003] At present, the anti-UV treatment of automobile glass usually adopts the method of coating the surface of automobile glass with anti-ultraviolet coating. Commonly used anti-UV coatings are those based on metal oxides. [0004] In the process of ...

Claims

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Application Information

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IPC IPC(8): C09D5/32C09D133/12C09D7/12C03C17/00
CPCC09D5/32C03C17/007C03C17/009C08K3/22C08K3/36C08K5/3475C08K2003/2213C08K2003/2241C08K2003/2244C08K2003/2296C09D7/61C09D7/63C09D133/12
Inventor 陈大华秦玉林唐少俊茆俊峰熊建民洪丽张静
Owner CHERY AUTOMOBILE CO LTD
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