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Patterned power-gain type solar back plate material

A solar backplane and power gain technology, applied in photovoltaic power generation, electrical components, circuits, etc., can solve problems such as difficult to achieve composition systems, achieve good controllability and long-term reliability, stable production process, and high reflectivity Effect

Inactive Publication Date: 2016-10-12
HANGZHOU FIRST APPLIED MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since solar modules exceed the requirements for the weather resistance of their backsheet materials, it is difficult to achieve a solution that has both a reasonable composition system and a reasonable patterning to further improve the reflectivity of the solar backsheet.

Method used

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  • Patterned power-gain type solar back plate material
  • Patterned power-gain type solar back plate material
  • Patterned power-gain type solar back plate material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] The backplane manufacturing process is as follows:

[0055] First, the intermediate layer ingredients are polyethylene terephthalate (U.S. DuPont) 60wt%, titanium dioxide R902 (U.S. DuPont) 35wt%, hydrolysis stabilizer phenyl glycidyl ether (Hongyu Chemical Co., Ltd.) 4wt %, anti-thermal oxygen aging agent 2'-methylene bis-(4-methyl-6-tert-butylphenol) (Germany BASF) 1wt%. After mixing evenly, melt processing at 250-300°C.

[0056] The batching of pattern layer is ethylene-propylene copolymer (U.S. Dow Chemical Company) 50wt%, 3-(methacryloyl chloride) propyltrimethoxysilane (Sartomer Company) 4.9wt% and methacrylic acid hydroxyl Ethyl ester (Sartomer Company) 4wt%, flaky wet-process mica powder (Fengshuo Chemical Co., Ltd.) 5wt%, ceramic microspheres (King Kong New Materials Co., Ltd.) 10wt%, titanium dioxide R706 (U.S. DuPont) 25wt%, UV Absorber 2-[4-[2-Hydroxy-3-dodecyloxypropyl]oxy]-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl) -1,3,5-triazine (Germany BASF) 0.05w...

Embodiment 2

[0063] The backplane manufacturing process is as follows:

[0064] First, the intermediate layer ingredients are polybutylene terephthalate (U.S. DuPont Company) 95wt%, UV absorber 2-(4,6-bis(2,4-dimethylphenyl)-1,3, 5-triazin-2-yl)-5-octyloxyphenol (BASF, Germany) 1wt%, light stabilizer 2,2,6,6-tetramethyl-4-piperidine stearate (Taiwan bis Bond Chemical Company) 1wt%, hydrolysis stabilizer P400 (Germany Rheinland Chemical Company) 2.5wt%, anti-thermal oxygen aging agent triethylene glycol ether-two (3-tert-butyl-4-hydroxyl-5-methylphenyl ) Propionate (Taiwan Yongguang Chemical Company) 0.5wt%. After mixing evenly, melt processing at 250-300°C.

[0065] The batching of pattern layer is ethylene-propylene copolymer (Netherlands Lian DeBasell company) 85wt%, glycidyl methacrylate grafted polyethylene (Sartomer company) 5wt% and polyethylene glycol monomethacrylate (Manor Chemical Co., Ltd.) 5wt%, flaky talcum powder (Chuangyu Chemical Co., Ltd.) 1wt%, glass microspheres (3M C...

Embodiment 3

[0071] The backplane manufacturing process is as follows:

[0072] First, the intermediate layer ingredients are polyethylene naphthalate (Changchun, Taiwan) 70wt%, glass fiber powder (Xiangu Technology Co., Ltd.) 21wt%, ultraviolet absorber 2-[4-[2-hydroxyl-3- Dodecyloxypropyl]oxyl]-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine (Taiwan Double Bond Chemical Co. ) 0.54wt%, light stabilizer 2,2,6,6-tetramethyl-4-piperidine stearate (Taiwan Double Bond Chemical Company) 0.459wt%, hydrolysis stabilizer type I (Rheinland Chemical) 8wt %, anti-thermal oxygen aging agent 3,9-dioctadecyloxy-2,4,8,10-tetraoxo-3,9-diphosphospiro[5.5]undecane (Nanjing Hengqiao Chemical Company) 0.001 wt%. After mixing evenly, melt processing at 250-300°C.

[0073] The batching of pattern layer is ethylene-octene copolymer (Taiwan Fu poly chemical company) 89wt%, maleic anhydride grafted polyethylene (Sartomer company) 3wt% and triallyl isocyanurate (Chuangzhuang Chemical Co., Ltd. Compa...

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Abstract

The invention discloses a patterned power-gaining solar backboard material. The backboard material is composed of a pattern layer, an intermediate layer and a weather-resistant layer. The weather-resistant layer is made by extrusion, casting or wet coating at 60-260 ° C. The pattern layer is melt-extruded and cast to the middle layer at 60-300 ° C. After that, it is mechanically printed and then thermally cured. , radiation curing, microwave curing in one or more ways to shape the system. The reflectivity of the backsheet material prepared by the present invention exceeds 90% in the visible light and short-wave near-infrared regions. The high reflectivity has a great gain for the power generation of solar modules, and it also has good water vapor barrier properties, insulation properties and Long-term weather resistance. The pattern of the invention is easy to prepare, the reflectivity is significantly improved, the comprehensive performance of the product is stable, and the compatibility with the internal material of the solar module is good, which is beneficial to the simplification of the module preparation process.

Description

technical field [0001] The invention belongs to the field of photovoltaic encapsulation materials, and relates to a patterned power-gaining solar backboard material. Background technique [0002] With the development of industry, the depletion of non-renewable resources such as petrochemical coal, and the aggravation of environmental pollution, seeking a renewable and clean energy source has become a hot spot in today's society, and solar energy resources are inexhaustible. Photovoltaic power generation systems can be used where there is light, and are not limited by factors such as geography and altitude. Solar photovoltaic power generation modules are laminated by five parts: glass surface, EVA film, silicon cell, EVA film and back plate. For the solar cell, the most important component of solar power generation, its power generation mechanism is the process of converting the energy of sunlight into electrical energy based on the photovoltaic effect of the silicon semicon...

Claims

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Application Information

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IPC IPC(8): H01L31/049
CPCY02E10/50H01L31/049
Inventor 王伟林维红郑炯洲周光大林建华
Owner HANGZHOU FIRST APPLIED MATERIAL CO LTD
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