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Glass anti-reflection coating liquid and application method of glass anti-reflection coating liquid in anti-reflection glass preparation

A technology of coating liquid and glass, applied in the direction of coating, etc., can solve the problem of reducing organic compounds and other problems, and achieve the effect of good adhesion performance of the film layer

Inactive Publication Date: 2013-04-03
ZHOUSHAN PUTUO XIAHE MATERIAL TECHN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above shortcomings, the technical problem to be solved by the present invention is to greatly reduce the use of organic compounds, thereby providing a glass anti-reflection coating solution that is not volatile and has less organic waste gas, and an environmentally friendly and efficient application method in the preparation of anti-reflection glass

Method used

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  • Glass anti-reflection coating liquid and application method of glass anti-reflection coating liquid in anti-reflection glass preparation
  • Glass anti-reflection coating liquid and application method of glass anti-reflection coating liquid in anti-reflection glass preparation

Examples

Experimental program
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Effect test

Embodiment 1

[0020] Disperse 62.6 g of tetraethoxysilane in 90 g of ethanol, add 43.2 g of 0.5N nitric acid aqueous solution and stir at room temperature for 24 hours, and then concentrate the obtained silica sol by rotary evaporation to obtain 121 g of nano silica sol. 1.

[0021] Disperse 17.8 g of tetraethoxysilane in 108 g of ethanol, add 9.8 g of 0.16N ammonia water and stir for 24 hours at room temperature, and then concentrate the obtained silica sol by rotary evaporation to obtain 63 g of nano silica sol. 2.

[0022] The obtained nano-silica sol 2 is added to the nano-silica sol 1, and then 450 g of water is added, and the reaction is stirred at room temperature for 1 hour. Then, 0.2-1.2 g of oxalic acid is added, and the aqueous antireflection coating solution is obtained after uniform stirring.

[0023] The glass substrate was washed with pure water and dried in an oven. After cooling, the colloidal solution was used to coat the glass substrate by roller coating, and then the film was ...

Embodiment 2

[0026] Disperse 62.1 g of triethoxymethylsilane in 80 g of isopropanol, add 37.8 g of 0.5N hydrochloric acid aqueous solution and stir at room temperature for 24 hours, and then concentrate the resulting silica sol by rotary evaporation to obtain 110 g Nano silica sol 3.

[0027] Disperse 17.8 grams of tetraethoxysilane in 108 grams of ethanol, add 9.8 grams of 0.1N ammonia water and stir at room temperature for 24 hours, and then concentrate the resulting silica sol by rotary evaporation to obtain 60 grams of nano silica sol 4 .

[0028] The obtained nano-silica sol 3 is added to the nano-silica sol 4, and 460 grams of water are added, and the reaction is stirred at room temperature for 1 hour, and then 0.2-1.2 terephthalic acid is added and stirred uniformly to obtain an aqueous antireflection coating solution.

[0029] The glass substrate is washed with pure water and dried in an oven. After cooling, the resulting colloidal solution is coated on the glass substrate by roll coatin...

Embodiment example 4

[0032] Disperse 62.1 grams of triethoxymethylsilane in 80 grams of isopropanol, add 37.8 grams of 0.5N hydrochloric acid aqueous solution, stir at room temperature for 24 hours, and concentrate the resulting silica sol by rotary evaporation to obtain 110 grams of nano silica sol 3.

[0033] Disperse 17.8 g of tetraethoxysilane in 108 g of ethanol, add 9.8 g of an aqueous solution containing 0.3 g of ethylamine to the above solution, heat the solution to 40°C, and stir the reaction for 24 hours. The resultant is obtained by rotary evaporation. The silica sol was concentrated to obtain 65 grams of nano silica sol 5.

[0034] Add the nano silica sol 3 to the nano silica sol 5, add 480 grams of water, stir at room temperature for 1 hour, add 0.2-1.2 m-tribenzoic acid, and stir evenly to obtain an aqueous antireflection coating solution.

[0035] The glass substrate is washed with pure water, dried in an oven, and after cooling, the colloidal solution is applied to the glass substrate by...

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Abstract

The invention provides a glass anti-reflection coating liquid. A water-based nanometer silicon sol anti-reflection coating liquid is obtained by taking water a solvent, mixing two or more than two nanometer silicon sols with different properties, and then adding an organic addition agent, and the refractive index parameter of a thin film is 1.10-1.45. An application method of the glass anti-reflection coating liquid in anti-reflection glass preparation is characterized in that the glass anti-reflection coating liquid is coated on the surface of glass by adopting a roller coating method, a dip-coating method or a spray finishing method, and curing treatment is carried out at the temperature of more than 100 DEG C. Compared with the prior art, the glass anti-reflection coating liquid has the advantages that water is used as the solvent, and the content of organic ingredients, especially the content of volatile organics is low, and therefore, the glass anti-reflection coating liquid is environment-friendly and economic, and no lots of exhaust gases are generated in the production process of the anti-reflection glass; and the glass anti-reflection coating liquid is suitable for being coated by a roller coating technology, and an obtained coating has good adhesion property and hardness of more than 4H. The glass anti-reflection coating liquid is particularly suitable for production of the anti-reflection solar glass.

Description

Technical field [0001] The invention relates to a glass anti-reflection coating solution and its application method in preparing anti-reflection glass. Background technique [0002] When light propagates in two different media, it will reflect on the interface. According to the Fresnel reflection law, the reflectivity R = (n 1 – N 0 ) / ( n 1 + n 0 ), n 0 And n 1 They are the refractive index parameters of the two media. For glass and air, the refractive index parameters of glass and air are 1.5 and 1, respectively, that is, n 1 =1.5, n 0 =1. When light enters the glass from the air, it will be reflected on the surface of the glass. According to the Fresnel reflection law, 4% of the light will be reflected off. Similarly, when the light is shot from the glass into the air, it will also be reflected on the surface of the air. It produces 4% reflection, so regardless of the absorption of the glass itself, the highest transmittance of the glass is 92%. [0003] Antireflection glass h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D7/12C03C17/23
Inventor 林春和
Owner ZHOUSHAN PUTUO XIAHE MATERIAL TECHN CO LTD
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