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Anti-reflection self-cleaning photovoltaic coating glass and preparation method thereof

A technology of coated glass and self-cleaning film, which is applied in the field of antireflection and self-cleaning photovoltaic coated glass and its preparation, can solve the problems of reducing the antireflection effect of the film layer, low efficiency of coated glass, and inability to adapt to large-scale production, etc., to overcome the single Low transmittance of self-cleaning film, overcome poor anti-fouling performance and high production efficiency

Inactive Publication Date: 2018-01-23
HENAN ANCAI HI-TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The film layer of the titanium dioxide film prepared by the sol-gel method is dense, and its refractive index is about 2.2, and if the content of titanium dioxide sol in the composite sol is more, the refractive index of the composite film layer will be increased, thereby greatly reducing the anti-reflection effect of the film layer
In addition, the efficiency of using the pulling method to prepare coated glass is very low and cannot meet the needs of large-scale production

Method used

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  • Anti-reflection self-cleaning photovoltaic coating glass and preparation method thereof
  • Anti-reflection self-cleaning photovoltaic coating glass and preparation method thereof
  • Anti-reflection self-cleaning photovoltaic coating glass and preparation method thereof

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preparation example Construction

[0024] The present invention also relates to a preparation method of anti-reflective self-cleaning photovoltaic coated glass, comprising the following steps:

[0025] a) Coating an anti-reflection film: apply an anti-reflection film liquid on the basic side surface of the glass by a roll coating method, and then solidify at a low temperature to form an anti-reflection film layer; and

[0026] b) Coating a self-cleaning film: apply a self-cleaning film liquid on the anti-reflection film layer formed in step a) by roller coating or spraying, and then perform high-temperature tempering to form a tempered coated glass containing a self-cleaning film layer.

[0027] figure 2 A flow chart of the preparation method of the anti-reflection self-cleaning photovoltaic glass is shown.

[0028] In step a) of the present invention, the low-temperature curing condition is that the temperature is below 300° C. and heated for 2-5 minutes. The low temperature curing temperature is, for examp...

Embodiment 1

[0050] Clean the ultra-clear rolled glass (length 300mm, width 300mm, thickness 3.2mm, provided by Henan Ancai High-Tech Co., Ltd.) with a cleaning machine, and then use a roller coater to coat the glass wool with a silicon dioxide anti-reflection film solution. Wherein, the rotation speed of the coating roller in the roller coater is 7m / min, and the glass transmission speed is 6m / min. After coating the anti-reflection film, cure it in a thermostat at 150°C for 5 minutes to form a silicon dioxide anti-reflection film with a thickness of 100nm, and then use a roller coater to coat the titanium dioxide self-cleaning film solution, wherein the speed of the coating roller is 4m / min, the glass transmission speed is 9m / min, after the coating is completed, it is sent to a high-temperature tempering furnace for tempering, heated in the tempering furnace at 650°C for 150 seconds, and then the glass substrate is removed from the furnace, and then the high-pressure cold air is blown by a ...

Embodiment 2

[0052] Clean the ultra-clear rolled glass (length 300mm, width 300mm, thickness 3.2mm, provided by Henan Ancai High-Tech Co., Ltd.) with a cleaning machine, and then use a roller coater to coat the glass wool with a silicon dioxide anti-reflection film solution. Wherein the coating roller rotation speed in the roller coating machine is 7.5m / min, and the glass transmission speed is 6m / min. After coating the anti-reflection film, cure it in a thermostat at 150°C for 5 minutes to form a silicon dioxide anti-reflection film with a thickness of 120nm, and then use a roll coater to coat the titanium dioxide self-cleaning film solution, wherein the speed of the coating roller is 4m / min, the glass transmission speed is 9m / min, after the coating is completed, it is sent to a high-temperature tempering furnace for tempering, heated in the tempering furnace at 650°C for 150 seconds, and then the glass substrate is removed from the furnace, and then the high-pressure cold air is blown by a...

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Abstract

The invention relates to anti-reflection self-cleaning photovoltaic coating glass which comprises a glass substrate. The coating glass is characterized in that the glass further comprises an antireflection coating layer and a self-cleaning coating layer, the antireflection coating layer is arranged on the surface of one side of the glass substrate, the self-cleaning coating layer is arranged on the antireflection coating layer, the thickness of the antireflection coating layer ranges from 70nm to 120nm, and the thickness of the self-cleaning coating layer ranges from 10nm to 50nm. The invention further relates to a preparation method of the anti-reflection self-cleaning photovoltaic coating glass.

Description

technical field [0001] The invention relates to an antireflective self-cleaning photovoltaic coating glass and a preparation method thereof. Background technique [0002] When the solar cell module is placed in the external environment, dust will be deposited on the surface of the photovoltaic glass. At the same time, it will also be contaminated with organic matter in air pollutants and the excrement of flying birds in the sky to form dirt, which will affect the transmittance of light and reduce the performance of photovoltaic cells. conversion efficiency. At present, photovoltaic modules basically use photovoltaic glass coated with an anti-reflection film. The anti-reflection film layer is usually a porous nano-silica structure with a large porosity, which is easier to absorb air than uncoated photovoltaic glass. pollutants in. The titanium dioxide film has a photocatalytic effect. Under the irradiation of ultraviolet light, it can decompose the organic matter on the sur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/34
Inventor 陈志刚郭松昌杨柯魏永强陈明孙向阳李江涛李福明李超
Owner HENAN ANCAI HI-TECH
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