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A kind of coating and light-transmitting material

A technology of coatings and materials, applied in the direction of coatings, optics, optical components, etc., can solve the problems of low light transmittance of light-transmitting materials, and achieve the effect of good friction resistance and corrosion resistance

Active Publication Date: 2016-03-09
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the refractive index of the anti-reflection film obtained by the coating method is still high, so the light transmittance of the light-transmitting material is still low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Add 20.8 g of tetraethyl orthosilicate (0.1 mol) into 230 g of ethanol (5 mol), and stir to obtain mixture B; magnesium fluoride (purchased from Sumitomo Osaka Cement Co., Ltd., Japan) with a particle size of less than 50 nm was prepared according to the ratio of 1: The mol ratio of 30 is added in water, and mixture C is obtained after stirring; Add 0.8 g of 25% by weight of ammonia water to adjust the pH value of mixture B to 10, then add 0.005mol of mixture C (in terms of magnesium fluoride) and 4.8 g of water, so that the molar ratio of ethyl orthosilicate, water and magnesium fluoride is 1:3:0.05, after stirring for 1 hour, let stand for 120 hours to obtain Sol A. Calculated according to the feeding amount, based on the weight of magnesium fluoride, the content of core-shell magnesium fluoride microspheres is 0.12% by weight, and the content of solvent (ethanol) is 95% by weight. Ethyl Ester" (Organosilicon Materials, 2003, No. 5, pages 18-19) to measure the content...

Embodiment 2

[0060] Add 20.8 g of tetraethyl orthosilicate (0.1 mol) into 100 g of ethanol (2.2 mol), and stir to obtain mixture B; magnesium fluoride (purchased from Sumitomo Osaka Cement Co., Ltd., Japan) with a particle size of less than 50 nm was prepared according to 1 : the mol ratio of 100 is added in water, after stirring uniformly, mixture C is obtained; the pH value of adding 25% by weight of ammoniacal liquor 1.5g to adjust mixture B is 12, and then adding 0.002mol of mixture C (in terms of magnesium fluoride) under stirring condition , so that the molar ratio of ethyl orthosilicate, water and magnesium fluoride is 1:2:0.02, after stirring for 1 h, let stand for 150 h to obtain Sol A. According to the calculation of feeding amount, based on the weight of magnesium fluoride, the content of core-shell magnesium fluoride microspheres is 0.16% by weight, and the content of solvent (ethanol) is 87% by weight. Ethyl Ester" (Organosilicon Materials, 2003, No. 5, pp. 18-19), the content...

Embodiment 3

[0069] Add 20.8 g of tetraethyl orthosilicate (0.1 mol) into 345 g of ethanol (7.5 mol), and stir to obtain a mixture B; : The mol ratio of 20 is added in water, and mixture C is obtained after stirring; Add 25% by weight of ammonia 0.6g to adjust the pH value of mixture B to 8, then add 0.01mol of mixture C (in terms of magnesium fluoride) under stirring conditions And 3.5g of water, so that the molar ratio of ethyl orthosilicate, water and magnesium fluoride is 1:4:0.1, after stirring for 1h, stand still for 150h to obtain Sol A. Calculated according to the amount of feeding, based on the weight of magnesium fluoride, the content of core-shell magnesium fluoride microspheres is 0.17% by weight, and the content of solvent (ethanol) is 97% by weight. Ethyl Ester" (Organosilicon Materials, 2003, No. 5, pages 18-19) to measure that sol A does not contain ethyl orthosilicate.

[0070] Observe and measure according to the method specified in GB / T20307-2006 "General Principles of ...

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Abstract

The invention provides a coating. The coating contains a sol A, wherein the sol A contains a nuclear shell type magnesium fluoride microsphere and a solvent, and contains or does not contain silicate ester; a core of the nuclear shell type magnesium fluoride microsphere is magnesium fluoride, and a shell of the nuclear shell type magnesium fluoride microsphere is a hydrolysis product; and the particle size of the nuclear shell type magnesium fluoride microsphere is 4-150nm. The invention also provides a light transmission material; the light transmission material contains a light transmission glass substrate and an antireflection film attached on the surface of the light transmission glass substrate; and the antireflection film is obtained by solidification of the coating. According to the invention, the antireflection film obtained by solidification of the coating is capable of enabling the light transmittance of the light transmission material to be not less than 0.95, and has better friction resistance and corrosion resistance.

Description

technical field [0001] The invention relates to a coating and a light-transmitting material. Background technique [0002] The surface of the light-transmitting material commonly used today is mostly attached with an anti-reflection film to reduce the reflection loss when light passes through the light-transmitting material. With the widespread use of light-transmitting materials, especially in solar cell packaging, the requirements for anti-reflection films are getting higher and higher. [0003] As we all know, for optical glass with a general refractive index of about 1.5, in order to achieve 100% anti-reflection effect of the anti-reflection film, the refractive index of the anti-reflection film material is required to be 1.22, but it is difficult to find materials with such a low refractive index. Therefore, magnesium fluoride with a refractive index of 1.38 is generally used to prepare anti-reflection films. [0004] There are mainly two methods of preparing anti-ref...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B1/111G02B1/14C09D1/00
Inventor 孙永亮周维张斌
Owner BYD CO LTD
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