Solar photovoltaic glass antireflection coating and preparation method thereof

A solar photovoltaic and anti-reflection technology, applied in antifouling/underwater coatings, coatings, paints containing biocide, etc., can solve the problems of affecting the light transmittance of the anti-reflection film, affecting the light transmittance, and complicated processes, etc. Achieve easy industrialization and popularization and application, improve power generation efficiency, and simple production process

Active Publication Date: 2017-02-01
杭州国为光伏技术有限公司
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the anti-reflection effect of the film layer of this structure is poor, and the weather resistance is poor.
[0007] The Chinese invention patent document with the publication number CN 103627226 A discloses a solar photovoltaic glass antireflection and antifouling coating and its production method. Silica shell, the silica particles in the coating have a core-shell structure, the formation of the silica core and the coating process of the silica shell proceed simultaneously, aluminum dihydrogen phosphate and silicon phosphate are used as silica curing agents to strengthen the anti-reflection film Weather resistance, thus solving the problem of contradictory anti-reflection and weather resistance indicators of existing solar photovoltaic glass anti-reflection coatings, but the process is complex and difficult to control, and is not suitable for mass production
[0008] At present, the anti-reflection film on the market has the following defects: 1. The light transmittance gain is not high, not exceeding 2.3%; 2. The weather resistance is not good, and the light transmittance attenuation of the weather resistance test such as wet freezing and humid heat can reach more than 0.7%; 3. Poor stain resistance, easy t

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Polyether-polyester modified siloxane BYK-377, tetraethyl orthosilicate TEOS, ammonia water, fatty alcohol polyoxyethylene ether AEO9, and absolute ethanol in a mass ratio of 2:2:0.02:0.2:2 The ratio of BYK-377 and water is mixed, the temperature is raised to 70-75°C, and then deionized water is added dropwise. The dropwise addition is slow at first and then fast. The mass ratio of BYK-377 and water is 1:2. During the process of adding water, the reactants boil and reflux until After adding water, reflux for another 20 minutes. At this time, the solution becomes a slightly blue solution. After the reaction is completed, solution A is obtained, which is poured out for later use;

[0037] (2) Mix TEOS, dimethyldiethoxysilane, oxalic acid, absolute ethanol, and deionized water in a mass ratio of 6:1:0.02:3:6 in a reaction vessel with an oil bath temperature of 90°C Stir and heat up to reflux, and maintain reflux for 30 minutes. After the reaction is completed, adjust t...

Embodiment 2

[0042] (1) Polyester modified siloxane BYK-381, TEOS, tetramethylammonium hydroxide, nonylphenol polyoxyethylene ether TX-10, and isopropanol in a mass ratio of 2:2:0.02:0.3:2 Mix proportionately, raise the temperature to 70-75°C, and then add deionized water dropwise, slowly and then quickly, the mass ratio of BYK-381 and water is 1:2, the reactants boil and reflux during the process of adding water, until After the water is finished, reflux for another 20 minutes. At this time, the solution becomes a slightly blue solution, and the solution A is obtained after the reaction is completed, which is poured out for later use;

[0043] (2) Mix methyltrimethoxysilane, dimethyldimethoxysilane, acetic acid, isopropanol, and deionized water in a mass ratio of 8:1:0.03:3:6, and put them in an oil bath at a temperature of 90°C Stir in the reaction vessel and heat up to reflux, keep reflux for 30 minutes, after the reaction is finished, adjust the pH value to 6.5-7.0 with piperazine to o...

Embodiment 3

[0048] (1) Mix polyether modified siloxane BYK-373, TEOS, oxalic acid, AEO9, and absolute ethanol in a mass ratio of 2:2:0.03:0.3:2, raise the temperature to 70-75°C, and then add it dropwise Ionized water, add slowly first and then quickly. The mass ratio of BYK-373 and water is 1:2. During the process of adding water, the reactant boils and refluxes until the water is added, and then refluxes for 20 minutes. At this time, the solution turns slightly blue. Solution, after the reaction is completed, solution A is obtained, which is poured out for subsequent use;

[0049] (2) Mix methyltrimethoxysilane, dimethyldiethoxysilane, oxalic acid, absolute ethanol, and deionized water in a mass ratio of 7:1:0.02:3:7, and put them in an oil bath at a temperature of 90°C Stir in the reaction vessel and heat up to reflux, keep reflux for 30 minutes, after the reaction is over, adjust the pH value to 6.5-7.0 with monoethanolamine to obtain solution B, pour it out for later use;

[0050] (...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

In the invention, organic silicon resin and silicate ester are hydrolyzed together under effects of a catalyst to form nano organic silicon particles; the nano organic silicon particles is then mixed with a compact silicon-oxygen structural body prepared by individually hydrolyzing the silicate ester; the mixture is then cured to form a stable and regular compact structure that inorganic silicon coats organic silicon. During tempering of the photovoltaic glass, the organic substances are oxidized to obtain CO2, and regular-sized nano pores are remained, which are disconnected from each other, and water vapor is isolated outside a film layer, so that the coating has excellent weather resistant performance. In addition, the film layer has a smooth surface and pollutants cannot enter the interior of the film layer, so that the coating has excellent pollution resistance. The preparation process is simple, is easy to control and is suitable for large-scale production.

Description

technical field [0001] The invention belongs to the field of new materials and new energy, and in particular relates to a solar photovoltaic glass anti-reflection coating and a preparation method thereof. Background technique [0002] Crystalline silicon solar cell modules are generally composed of solar photovoltaic glass cover plate coated with anti-reflection film, solar cell silicon wafer, battery back plate and EVA film, which are glued and pressed together, and then installed into a fixed frame. The most important factor determining the photoelectric conversion efficiency of crystalline silicon solar cells is the crystalline silicon technology in photovoltaic components, followed by the protection of photovoltaic glass in photovoltaic components. And it is one of the best materials with high light transmittance. Therefore, the optical properties of photovoltaic glass are an important variable outside of crystalline silicon technology. However, it is far easier to main...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C09D183/04C09D183/10C09D183/06C09D183/07C09D5/16C09D7/12C03C17/00
CPCC03C17/009C03C2217/29C03C2217/40C03C2217/425C03C2217/732C03C2218/32C08L2205/02C09D5/1687C09D183/04C09D183/06C08L83/10
Inventor 孙志学
Owner 杭州国为光伏技术有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap