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Preparation method of glass surface antireflection film without sintering

A glass surface and anti-reflection film technology, which is applied in the field of glass surface anti-reflection film preparation, can solve the problems of equipment investment and environmental pollution, increase process difficulty, increase energy consumption, etc., and achieve the effect of high light transmittance

Active Publication Date: 2011-10-26
常州龙腾光热科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the perspective of industrialization, in addition to increasing energy consumption, equipment investment and environmental pollution, high-temperature calcination also requires precise control of high-temperature calcination conditions to prevent film cracks and structural defects, which increases the difficulty of the process.

Method used

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  • Preparation method of glass surface antireflection film without sintering
  • Preparation method of glass surface antireflection film without sintering

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Example 1: In a dry 100mL beaker, mix 65mL of absolute ethanol, 4.0mL of deionized water, 0.13mL of concentrated hydrochloric acid (37%), and 10mL of ethyl orthosilicate, wherein absolute ethanol: deionized water: concentrated The molar ratio of hydrochloric acid: ethyl orthosilicate is 25:5:0.03:1. Add 2g of cetyltrimethylammonium bromide to the above solution, so that the concentration of cetyltrimethylammonium bromide in the sol is about 25g / L, stir magnetically at room temperature for 8h, and then age for 24h After that, the prepared sol was obtained. Put the 20mm×100mm glass substrate (light transmittance 90%) into 37% hydrochloric acid: 30% hydrogen peroxide: deionized water = 1:1:5 (volume ratio) solution and 37% ammonia water: 30 % Hydrogen peroxide: deionized water = 1:1:5 (volume ratio) Soak in the solution for 2 hours respectively, then fully wash with absolute ethanol and deionized water respectively, and dry in the air. Immerse the treated glass substrate...

Embodiment 2

[0012] Example 2: In a dry 100mL beaker, mix 52mL of absolute ethanol, 2.4mL of deionized water, 0.04mL of concentrated hydrochloric acid (37%), and 10mL of ethyl orthosilicate, wherein absolute ethanol: deionized water: concentrated The molar ratio of hydrochloric acid: ethyl orthosilicate is 20:3:0.01:1. Add 1.3g of dodecyltrimethylammonium bromide to the above solution, so that the concentration of dodecyltrimethylammonium bromide in the sol is about 20g / L, stir magnetically for 4 hours at room temperature, and then age After 24h, the prepared sol was obtained. Put the 20mm×100mm glass substrate (light transmittance 90%) into 37% hydrochloric acid: 30% hydrogen peroxide: deionized water = 1:1:5 (volume ratio) solution and 37% ammonia water: 30 % Hydrogen peroxide: deionized water = 1:1:5 (volume ratio) Soak in the solution for 2 hours respectively, then fully wash with absolute ethanol and distilled water by ultrasonic waves, and dry in the air. Immerse the treated glass ...

Embodiment 3

[0013] Example 3: In a dry 100mL beaker, mix 26mL absolute ethanol, 0.8mL deionized water, 0.44mL concentrated hydrochloric acid (37%), and 10mL tetraethyl orthosilicate, wherein absolute ethanol: deionized water: concentrated The molar ratio of hydrochloric acid: ethyl orthosilicate is 10:1:0.1:1. Add 0.7g of octadecyltrimethylammonium bromide to the above solution, so that the concentration of octadecyltrimethylammonium bromide in the sol is about 20g / L, stir magnetically at room temperature for 8h, and then age After 24h, the prepared sol was obtained. Put the 20mm×100mm glass substrate (light transmittance 90%) into 37% hydrochloric acid: 30% hydrogen peroxide: deionized water = 1:1:5 (volume ratio) solution and 37% ammonia water: 30 % Hydrogen peroxide: deionized water = 1:1:5 (volume ratio) Soak in the solution for 2 hours respectively, then fully wash with absolute ethanol and distilled water by ultrasonic waves, and dry in the air. Immerse the treated glass substrate...

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Abstract

The invention relates to the antireflection film technology, and discloses a method for preparing a glass surface antireflection film without sintering. The method adopts tetraethyl orthosilicate as a raw material; a silica sol is obtained by acid catalysis; a coating sol is obtained by adding a certain amount of templates; a film is coated on a clean glass surface by a czochralski method, and isdried at 80 DEG C-120 DEG C for 24 h. The templates are removed by 80 DEG C hot water or ethanol through ultrasonic cleaning to obtain a glass surface antireflection film which has a maximum transmittance of up to above 99% and an average transmittance of up to above 96% in the visible region. Compared with the prior art, the invention has the advantages that firm binding of the glass surface antireflection film and the glass is guaranteed; higher transmittance is provided; and the preparation process of the antireflection film does not require high-temperature sintering.

Description

technical field [0001] The invention relates to anti-reflection film technology, in particular to a method for preparing an anti-reflection film on a glass surface. Background technique [0002] Anti-reflection coatings (Anti-reflection coatings), as a surface optical treatment technology, have been widely used in display screens, optical lenses, high-energy laser windows, automotive and building glass and other fields. In recent years, with the vigorous development of photovoltaic luminescence and solar thermoelectric technology, anti-reflection coating technology has received unprecedented attention. With the current glass manufacturing process, the glass with the best light transmittance can only reach 90% light transmittance. There are about 10% of sunlight that cannot reach the photoelectric or photothermal conversion components. In order to improve the utilization rate of sunlight, the surface of photovoltaic solar cells and the surface of vacuum heat collector tubes ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/23
Inventor 陈若愚孟晓山王健伍余科钟璟王红宁刘小华
Owner 常州龙腾光热科技股份有限公司
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