High-reflectivity backplate material of photovoltaic module

A photovoltaic module and high reflection technology, applied in photovoltaic power generation, electronic equipment, electrical components, etc., can solve the problems of photovoltaic module safety hazards and other problems, and achieve the effects of high photoelectric conversion efficiency, high water vapor barrier performance, and high partial discharge voltage

Active Publication Date: 2016-05-25
HANGZHOU FIRST APPLIED MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the partial discharge voltage of photovoltaic backplanes on the market is usually 1000-1200VDC, which can only be adapted to conventional photovoltaic module systems. There are great saf...

Method used

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  • High-reflectivity backplate material of photovoltaic module
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  • High-reflectivity backplate material of photovoltaic module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] In the manufacturing process, firstly, 100 parts of polyethylene terephthalate, 10 parts of inorganic filler titanium dioxide, 3 parts of hydrolysis stabilizer monomer carbodiimide, anti-thermal oxygen aging agent 1,3,5-tri( 0.05 parts of 4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl) were uniformly mixed by a high-speed mixer, melt-processed at 230-270 ° C, and cast into a film to obtain a 250 μm thick polymer basement membrane layer.

[0054] Then 100 parts of inorganic filler hollow glass microspheres, 5 parts of auxiliary filler nano-titanium dioxide and 20 parts of silane coupling agent vinyltrimethoxysilane are added to the high-speed mixer, and stirred at a speed of 20000r / min until the temperature of the mixer rises to 130 The stirring was completed at ℃, and the product was dried in a vacuum oven at 100℃ overnight. 20 parts of the modified hollow glass microspheres and 100 parts of the ethylene-propylene copolymer are uniformly mixed with a high-speed mixer, and t...

Embodiment 2

[0057] In Example 2, the thickness and composition of each layer are the same as in Example 1, but the polyolefin layer in Example 2 has a uniformly distributed regular pyramid structure.

Embodiment 3

[0059] In the manufacturing process, firstly, 100 parts of polyethylene terephthalate, 10 parts of inorganic filler titanium dioxide, 3 parts of hydrolysis stabilizer monomer carbodiimide, anti-thermal oxygen aging agent 1,3,5-tri( 0.05 parts of 4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl) were uniformly mixed by a high-speed mixer, melt-processed at 230-270 ° C, and cast into a film to obtain a 250 μm thick polymer basement membrane layer.

[0060] Then add 100 parts of inorganic filler hollow glass microspheres, 5 parts of auxiliary filler nano-titanium dioxide and 20 parts of silane coupling agent vinyltrimethoxysilane into a high-speed mixer, and stir at 20,000 r / min until the temperature of the mixer rises to 130°C to end the stirring. The product was dried overnight in a vacuum oven at 100°C. 10 parts of the modified hollow glass microspheres and 100 parts of the ethylene-propylene copolymer are uniformly mixed with a high-speed mixer, and then granulated and dried in a t...

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Abstract

The invention discloses a high-reflectivity backplate material of a photovoltaic module. The backplate material sequentially comprises a weather resistant layer, a polymer basic membrane layer, a polyolefin layer and a plurality of right square pyramid structures, wherein the plurality of right square pyramid structures are uniformly arranged on the upper surface of the polyolefin. The backplate material of the photovoltaic module, fabricated according to the invention is cheap in raw materials and simple in production process, also has the characteristics of high reflectivity, moisture blocking performance, local discharging voltage, relatively wide temperature application range, favorable mechanical property, high bonding strength and excellent outdoor weather resistance, and is the backplate material which has excellent comprehensive performance and is suitable for the photovoltaic module.

Description

Technical field [0001] The invention relates to a high-reflection photovoltaic module backboard material, which belongs to the field of photovoltaic packaging materials. Background technique [0002] When energy is mainly obtained by burning fossil fuels, the more energy consumed, the more it will affect the sustainable development of human society. Therefore, vigorously developing new energy has become an important global task. Solar energy is a clean, efficient and never-depleting new energy source. Solar energy has broad market prospects both now and in the future. Crystalline silicon cells are the core part of solar power generation. If crystalline silicon cells are directly exposed to the air and interfered by rain, snow, dust and other external factors, their conversion efficiency and service life will be greatly reduced. Therefore, it needs to be protected using appropriate packaging technology. Conventional photovoltaic modules generally consist of low-iron temper...

Claims

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Application Information

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IPC IPC(8): H01L31/048H01L31/049H01L31/054C08L67/02C08K3/22C08K5/29C08K5/13C09D127/12C09D7/12C09D123/16B32B27/08B32B27/18
CPCY02E10/52H01L31/0481B32B27/08B32B27/18B32B2250/03B32B2307/712B32B2457/12C08K3/22C08K5/13C08K5/29C08K2003/2241C09D7/61C09D7/62C09D7/63C09D123/0815C09D127/12H01L31/049H01L31/0547
Inventor 郑炯洲林维红李景菲周光大林建华
Owner HANGZHOU FIRST APPLIED MATERIAL CO LTD
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