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Photovoltaic module back high-performance protective film and preparation method thereof

A photovoltaic module, high-performance technology, applied in photovoltaic power generation, electrical components, semiconductor devices, etc., can solve the problems that the output is difficult to meet the development needs of the photovoltaic industry, the production process of fluorine film is complex, and toxic fluoride, etc., to achieve the improvement of chemical and physical High performance, high transmittance, effect of improving weather resistance

Pending Publication Date: 2021-02-02
郭学宏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, fluorine materials pollute the environment during the production and manufacturing process; on the other hand, toxic fluorides are easily produced in the process of material combustion or recycling, and the production process of fluorine film is complicated, and the output is difficult to meet the growing demand of the photovoltaic industry.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A method for preparing a high-performance protective film on the back of a photovoltaic module, which is composed of the following raw materials in parts by weight: 36 parts of modified EVA resin, 28 parts of masson pine powder modified ethylene-vinyl acetate copolymer, 14 parts of pretreated basalt fiber 10 parts of zeolite powder, 4 parts of nanoporous shell powder, 3 parts of peroxide crosslinking agent, 1 part of auxiliary crosslinking agent, 6 parts of polyethylene oxide, 8 parts of vinyl fluoride, 5 parts of cerium oxide, fluoride Lithium 5 parts.

[0019] A method for preparing a high-performance protective film on the back of a photovoltaic module, the preparation method comprising the following steps: adding raw materials to a high-speed mixer in sequence for stirring, the stirring speed is 125-135r / min, the stirring time is 25-35min, and then adding Extrude in a twin-screw extruder at an extrusion temperature of 125-135°C to obtain the high-performance protect...

Embodiment 2

[0031] The difference between this embodiment and Example 1 is that it consists of the following raw materials in parts by weight: 38 parts of modified EVA resin, 30 parts of masson pine powder modified ethylene-vinyl acetate copolymer, 15 parts of pretreated basalt fiber , 11 parts of zeolite powder, 5 parts of nanoporous shell powder, 5 parts of peroxide crosslinking agent, 2 parts of auxiliary crosslinking agent, 7 parts of polyethylene oxide, 10 parts of vinyl fluoride, 10 parts of cerium oxide, lithium fluoride 7 servings.

Embodiment 3

[0033] The difference between this embodiment and Example 1 is that it consists of the following raw materials in parts by weight: 42 parts of modified EVA resin, 32 parts of masson pine powder modified ethylene-vinyl acetate copolymer, 16 parts of pretreated basalt fiber , 12 parts of zeolite powder, 8 parts of nanoporous shell powder, 6 parts of peroxide crosslinking agent, 3 parts of auxiliary crosslinking agent, 8 parts of polyethylene oxide, 15 parts of vinyl fluoride, 8 parts of cerium oxide, lithium fluoride 8 servings.

[0034] The beneficial effects of the invention are: polyacrylate is used as the main material to ensure the high transmittance of the protective film; adding a small amount of fluorine-containing polymers not only does not affect the transmittance of the protective film under daily exposure and non-daily exposure , and increase the corrosion resistance and wear resistance of the protective film; the addition of trace metal compounds can significantly i...

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Abstract

The invention discloses a photovoltaic module back high-performance protective film and a preparation method thereof, and relates to the technical field of photovoltaic modules. The protective film isprepared from the following raw materials: modified EVA resin, a masson pine powder modified ethylene vinyl acetate copolymer, pretreated basalt fibers, zeolite powder, nano porous shell powder, a peroxide cross-linking agent, an auxiliary cross-linking agent, polyethylene oxide, vinyl fluoride, cerium oxide and lithium fluoride. The raw materials are taken according to the metering ratio and processed according to the preparation method of the photovoltaic module back high-performance protective film to finish preparation. The protective film has the beneficial effects that polyacrylate is used as a main material, so that the high transmittance of the protective film is ensured; a small amount of fluorine-containing polymer is added, so that the light transmittance of the protective filmunder sunshine exposure and non-sunshine exposure is not influenced, and the corrosion resistance and the wear resistance of the protective film are improved; and an added trace metal compound can obviously improve the chemical and physical properties of the protective film, and enhances the weather resistance, aging resistance, low temperature resistance and high temperature resistance of the film.

Description

technical field [0001] The invention relates to the technical field of photovoltaic modules, in particular to a method for preparing a high-performance protective film on the back of a photovoltaic module. Background technique [0002] Photovoltaic is a new type of power generation system that uses the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy. There are two modes of independent operation and grid-connected operation. The manufacturing capacity of China's photovoltaic industry is developing rapidly, but The level of science and technology is not improving fast. In order to achieve sustainable development of energy and the environment, countries around the world regard solar photovoltaic power generation as the focus of new energy and renewable energy development. Photovoltaic panel components are a kind of power generation that generates direct current when exposed to sunlight The device consis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/26C08L23/08C08L97/02C08L71/02C08K13/06C08K9/06C08K7/10C08K7/26C08K7/24C08K3/22C08K3/16C08J5/18H01L31/048H01L31/049H01L31/054
CPCC08J5/18C08J2323/26C08J2423/08C08J2471/02C08J2497/02C08K3/16C08K7/10C08K7/24C08K7/26C08K9/06C08K13/06C08K2003/2213H01L31/0481H01L31/049H01L31/0543C08K3/22C08L23/08C08L23/26C08L71/02C08L97/02H01L31/048H01L31/054Y02E10/52
Inventor 郭学宏
Owner 郭学宏
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