Preparation method for nanometer anti-reflection self-cleaning coating solution

A coating solution and nanotechnology, applied in the direction of coating, etc., can solve the problems of not providing a coating solution preparation method and not having self-cleaning, so as to reduce the cost of photovoltaic power generation, avoid difficult cleaning, and improve power generation efficiency.

Inactive Publication Date: 2015-07-22
江西省速睿科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current coating solution is difficult to achieve the above four characteristics at the same time
For example, the CN201010243757.5 patent discloses the preparation and application of a coating solution. The coating solution provided by this method has physical and chemical properties such as good adhesion, aging resistance, and acid mist resistance, but does not have self-cleaning properties; CN2011100816427.5 The patent discloses the preparation and application of a high-efficiency coating solution. The coating solution provided by this method can increase the light transmittance in the entire solar spectrum range, and the transmittance can reach more than 97%. It has good adhesion, aging resistance, It has physical and chemical properties such as acid mist resistance, but it does not have self-cleaning properties; CN201336312Y patent discloses a utility model of double-sided anti-reflection solar photovoltaic glass, which can effectively improve the light transmittance of photovoltaic glass, but does not provide a preparation method for coating solution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: with SiO 2 is a silicon oxide compound, La 2 o 3 , ZnO and Al 2 o 3 The mixture of the three is an additive (three by weight ratio of 30% La 2 o 3 ,, 30% ZnO and 40% Al 2 o 3 ), hexadecyltrimethoxysilane is the surface modifier, water is the solvent, and its mass ratio is: SiO 2 : additive (La 2 o 3 , ZnO and Al 2 o 3 Mix of the three): hexadecyltrimethoxysilane: water=15%: 7%: 3%: 75%, prepared according to the following steps:

[0027] a. Add SiO to water at a uniform speed under stirring 2 , uniformly disperse the silicon oxide compound in the solvent at a stirring speed of 100rpm-500rpm,

[0028] b. Add La at a constant speed to the solution prepared in step a while stirring 2 o 3 , ZnO and Al 2 o 3 Additives for the mixture of the three, stir at a speed of 100rpm-500rpm until the solution is mixed uniformly,

[0029] c. Add hexadecyltrimethoxysilane dropwise at a constant speed to the solution prepared in step b under stirring, and s...

Embodiment 2

[0032] Example 2 uses SiO 2 is a silicon oxide compound, La 2 o 3 , ZnO and Al 2 o 3 The three are mixed as additives (20wt% La 2 o 3 , 40wt% ZnO and 40wt% Al 2 o 3 ), hexadecyltrimethoxysilane is a surface modifier, ethanol is a solvent, and the mass ratio is: SiO 2 : additive (La 2 o 3 , ZnO and Al2 o 3 Mix of the three): cetyltrimethoxysilane: ethanol=20%: 10%: 5%: 65%. And prepared according to the method steps described in Example 1: the prepared nano-coating solution is applied on the photovoltaic glass substrate by roller coating, so that the surface of the photovoltaic glass can be formed into a firm and uniform coating layer, and the sunlight transmittance is increased by 2.6%. , and has a self-cleaning function.

Embodiment 3

[0033] Embodiment 3: take ethyl silicate as siloxy compound, La 2 o 3 , ZnO and Al 2 o 3 The three are mixed as additives (30wt% La 2 o 3 , 25wt% ZnO and 45wt% Al 2 o 3 ), o-tolyl is a surface modifier, methanol is a solvent, and the mass proportion is: ethyl silicate: (La 2 o 3 , ZnO and Al 2 o 3 The mixture of the three) is the additive: Methanol =23%: 14%: 2%: 61%. And prepared step by step according to the method described in Example 1: the nano-coating solution prepared is coated on the photovoltaic glass substrate by a roll coating method, and a firm and uniform coating layer can be formed, and the solar light transmittance of photovoltaic glass can be improved. 2.8%, and has a self-cleaning function.

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Abstract

The invention discloses a preparation method for a nanometer anti-reflection self-cleaning coating solution. The nanometer anti-reflection self-cleaning coating solution comprises the following components in percentage by mass: 10-25% of siloxy compound, 5-15% of additive, 1-5% of surface modifier and 60-80% of solvent. The preparation method comprises the steps as follows: adding the siloxy compound, the additive and the surface modifier into the solvent at a uniform speed in a stirring state by adopting the high gravity technology, and stirring at a stirring speed of 100-500 rpm in high gravity equipment until nanometer particles of less than 100 nm are formed in the solution, namely obtaining the nanometer anti-reflection self-cleaning coating solution. The coating solution prepared with the method can effectively improve the power generation efficiency of a photovoltaic cell assembly and avoid the shortcoming that the photovoltaic cell assembly is difficult to clean in the using process; and the preparation method is high in photoelectric efficiency, simple in preparation process and low in cost, is suitable for industrial large-scale production, and can reduce the photovoltaic power generation cost and promote the development of photovoltaic industry.

Description

technical field [0001] The invention relates to a preparation method of a nano-antireflection self-cleaning coating solution applied to solar photovoltaic glass. Background technique [0002] The solar photovoltaic industry is a renewable energy source, with the drying up of non-renewable energy sources. His application will attract the attention of all mankind. Among the technologies for developing and utilizing solar energy, solar photovoltaic power generation is a technology with the most research, the widest application, the highest market maturity and the highest competitiveness. The factors that determine the effectiveness of crystalline silicon solar photovoltaic cells are various variables related to light energy conversion efficiency. The most important determining factor is the crystalline silicon technology in photovoltaic components, followed by the photovoltaic glass in protective photovoltaic components. Since crystalline silicon cannot be exposed to the ext...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/00C09D7/12C03C17/23
Inventor 刘星生
Owner 江西省速睿科技有限责任公司
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