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Preparation method of visible light full-waveband multilayer antireflection coating

An anti-reflection coating and coating technology, applied in coatings and other directions, can solve the problems of high reflectivity, high transmittance, unsatisfactory light transmittance, and limited use of substrates

Inactive Publication Date: 2012-12-26
THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the purpose of the present invention is to overcome the shortcomings of the existing anti-reflection coating preparation method in the full-wave band of visible light, such as unsatisfactory light transmittance, complex production process, high cost, and limited use of substrates, and provide a coating in the full-wave band of visible light. A method for preparing an anti-reflection coating capable of achieving low reflectivity and high transmittance, simple production process, low cost and wide application base

Method used

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  • Preparation method of visible light full-waveband multilayer antireflection coating
  • Preparation method of visible light full-waveband multilayer antireflection coating
  • Preparation method of visible light full-waveband multilayer antireflection coating

Examples

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Effect test

Embodiment 1

[0048] This embodiment is used to illustrate the preparation method of the multi-layer anti-reflection coating of the present invention and the detection of its adhesion.

[0049] Add 0.1 g of methacryloxysilane-modified silica nanoparticles (13 nm in particle size) to 99.9 g of propylene glycol methyl ether acetate, and stir at 500 rpm to obtain a uniform slurry. Use an ultrasonic cell pulverizer to ultrasonically disperse the above slurry for 1h, and the ultrasonic power is 1200W to obtain the gas phase SiO 2 Nanodispersion.

[0050] Under the condition of a water bath temperature of 50° C., 20.8 g of ethyl orthosilicate was added to 9.2 g of absolute ethanol, and stirred at 500 rpm for 2 h. Add 20ml of ammonia water (1N) and stir for 4h to obtain a uniform and stable sol. After standing for 18h, the sol-gel SiO 2 Nanodispersion.

[0051] Add 0.8 g of photoinitiator Irgacure184 (Ciba) to 20 g of trimethylolpropane triacrylate, stir at 500 rpm to dissolve it completely. ...

Embodiment 2

[0055] This example is used to illustrate the preparation method of the multi-layer anti-reflection coating of the present invention.

[0056] Add 0.01 g of trimethylolpropane triacrylate to 99.88 g of absolute ethanol, and stir evenly at 500 rpm. Then add 0.1g unmodified SiO 2 Nanoparticles, stirred at 500 rpm to obtain a homogeneous slurry. Ultrasonic cell pulverizer was used to ultrasonically disperse the above slurry for 1 h, and the ultrasonic power was 1200W. Then, use a planetary ball mill to grind the slurry, the diameter of the grinding ball is 0.5mm, the rotation speed is 500rpm, and the grinding time is 12h to obtain the gas phase SiO 2 Nanodispersion.

[0057] To the above gas phase method SiO 2 Add 0.0004g of photoinitiator Irgacurel84 (Ciba) to the nano-dispersion liquid, and stir it at 500rpm to dissolve it completely.

[0058] Under the condition of a water bath temperature of 50° C., 20.8 g of tetraethyl orthosilicate, 16 g of absolute ethanol and 7 g of ...

Embodiment 3

[0061] This example is used to illustrate the preparation method of the multi-layer anti-reflection coating of the present invention.

[0062]72g of absolute ethanol, 24g of propylene glycol methyl ether acetate, 0.2g of acrylate DESMOPHENA450BA (Bayer) and 0.1g of Triton-100 were stirred evenly at 500rpm. Then add 3g of unmodified SiO 2 Nanoparticles, stirred at 500 rpm to obtain a homogeneous slurry. According to the dispersion method identical with embodiment 1, prepare gas phase method SiO 2 Nanodispersion.

[0063] To the above gas phase method SiO 2 Add thermal initiator 0.044g DESMODURN3390BA / SN (Bayer) into the nano-dispersion liquid, stir at 500rpm to make it dissolve completely.

[0064] Under the condition of a water bath temperature of 50° C., 20.8 g of ethyl orthosilicate was added to 15 g of absolute ethanol, and stirred at 500 rpm for 2 h. Add 40ml of ammonia water (1N) and stir for 4h to obtain a uniform and stable sol. After standing for 12h, the sol-gel...

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Abstract

The invention provides a preparation method of a multilayer antireflection coating, comprising the following steps: (1) dispersing one or more of SiO2 particles, Al2O3 nanoparticles, and TiO2 nanoparticles in a solvent by a mechanical dispersion method to form a first nano dispersion liquid; (2) dispersing one or more of SiO2 particles, Al2O3 nanoparticles, and TiO2 nanoparticles in a solvent by a mechanical dispersion method to form a second nano dispersion liquid which is different from the first nano dispersion liquid, or dispersing one or more of SiO2 particles, Al2O3 nanoparticles, and TiO2 nanoparticles in a solvent by a sol-gel method to prepare a third nano dispersion liquid; and (3) preparing a coating: coating the first nano dispersion liquid prepared by the step (1) and the second or the third nano dispersion liquid prepared by the step (2) on a substrate and solidifying to form a coating. The method disclosed herein has the advantages of low reflectivity and high transmitance in full-waveband of visible lights, simple production process, low cost and wide suitable substrates, and the like.

Description

technical field [0001] The invention relates to a preparation method of a multi-layer anti-reflection coating in the full band of visible light. Background technique [0002] The anti-reflection coating can reduce or eliminate the reflected light on the surface of optical mirrors such as lenses, prisms, and plane mirrors and the stray light of the system, and at the same time increase the amount of light transmitted on the surface of optical mirrors such as lenses, prisms, and plane mirrors. Therefore, it has strong applications and Prospects. For example, photovoltaic glass is one of its applications. Photovoltaic glass is the packaging material for solar photovoltaic cells. At present, solar cells mainly use single suede low-iron ultra-clear glass, and the light transmittance is only about 91%. The use of anti-reflection film can improve the light transmittance of photovoltaic glass, increase the power generation power of solar cells, and greatly reduce the manufacturing...

Claims

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Application Information

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IPC IPC(8): C09D1/00C09D4/02
Inventor 周凌云张辉张晖张忠
Owner THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
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