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Solar cell backboard

A technology for solar cells and backplanes, applied in circuits, photovoltaic power generation, electrical components, etc., can solve problems such as cumbersome processes and poor timeliness, and achieve the effects of simplifying the preparation process, improving peeling force, and high flame retardancy

Active Publication Date: 2015-11-25
乐凯胶片股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technology has problems such as poor timeliness and cumbersome process

Method used

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  • Solar cell backboard
  • Solar cell backboard

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Add 200g fluorocarbon resin GK570 (manufactured by Daikin Fluorochemical Co., Ltd., OH value is 60mgKOH / g), 20g HDI trimer N3300 (manufactured by Bayer Materialscience, Germany), 60g ethyl acetate, 0.06g titanate LD144 ( Yangzhou Lida Resin Co., Ltd.), stirred for 20 minutes, and filtered to obtain the adhesive layer coating solution.

[0039] On one side of the cleaned and corona-treated PET, apply the above-mentioned adhesive layer coating solution by gravure coating, and dry at 90°C for 3 minutes to obtain a 20 μm adhesive layer; then on the other side of the PET by coating Or a compound method is used to form a weather-resistant layer, and the obtained product is subjected to a 3-day curing period at 50° C. to obtain a solar battery back sheet.

Embodiment 2

[0041] Add 200g of fluorocarbon resin ETERFILON4101 (manufactured by Changxing Chemical Industry Co., Ltd., OH value 56mgKOH / g), 36g of IPDI trimer Z4470BA (manufactured by Bayer Materialscience, Germany), 60g of butyl acetate, and 0.3g of aluminate DL in a wide-mouth container -411-A (manufactured by Nanjing Daoning Chemical Co., Ltd.), stirred for 20 minutes, and filtered to obtain the adhesive layer coating solution.

[0042] On one side of the cleaned and corona-treated PET, apply the above-mentioned adhesive layer coating solution by gravure coating, and dry at 140 ° C for 3 minutes to obtain a 10 μm adhesive layer; then on the other side of the PET by coating Or a compound method is used to form a weather-resistant layer, and the obtained product is subjected to a 3-day curing period at 50° C. to obtain a solar battery back sheet.

Embodiment 3

[0044] Add 175g of fluorocarbon resin ETERFILON41011 (manufactured by Changxing Chemical Industry Co., Ltd., OH value 56mgKOH / g), 18g of HDI dimer N100 (manufactured by BayerMaterialscience, Germany), 50g of ethyl acetate, and 0.6g of zirconate DN in a wide-mouth container -807 (manufactured by Nanjing Pinning Coupling Agent Co., Ltd.), stirred for 20 minutes, and filtered to obtain a bonding layer coating solution.

[0045] On one side of the cleaned and corona-treated PET, apply the above-mentioned adhesive layer coating solution by gravure coating, and dry at 90°C for 3 minutes to obtain a 15 μm adhesive layer; then on the other side of the PET by coating Or a compound method is used to form a weather-resistant layer, and the obtained product is subjected to a 3-day curing period at 50° C. to obtain a solar battery back sheet.

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Abstract

The invention provides a solar cell backboard which is excellent in weather resistance and fire resistance. The solar cell backboard comprises a weather-resistant layer, an insulating layer and a bonding layer. The bonding layer is a coating, which is high in weather resistance and high in fire resistance and is formed by the combination of fluorocarbon resin and isocyanate. The bonding layer comprises functional coupling agents which are one or more of a titanate coupling agent, an aluminate coupling agent, a zirconate coupling agent, an aluminum-zirconate coupling agent and an aluminum-titanium compound coupling agent. The adding of the functional coupling agents allows the fluorocarbon resin and EVA of an EVA packaging adhesive film to have good cohesive property. The solar cell backboard has good weather resistance and fire resistance and provides higher safety for a solar cell assembly.

Description

technical field [0001] The invention relates to a solar cell backboard, in particular to a solar cell backboard with good weather resistance, excellent adhesion to an EVA packaging adhesive film, and excellent flame retardancy. Background technique [0002] In recent years, as a representative of green energy, solar power generation has attracted more and more attention. At present, the application of solar energy is mainly to use solar power generation components to convert solar energy into electrical energy for utilization. Solar power generation components are mainly composed of front plates, packaging materials, crystalline silicon cells, and back plates. The solar backsheet is located on the back of the solar panel and protects and supports the solar cells. Therefore, it must have reliable electrical insulation, good mechanical properties, moisture barrier properties, and weather resistance. [0003] The solar cell backsheet is mainly composed of three layers, which a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048H01L31/049C09J7/00C09J127/12C09J11/06
CPCY02E10/50H01L31/0481C08K5/10C08K5/34924C08L2203/204C09J7/00C09J11/06C09J127/12
Inventor 王莉刘芳李亚钊许宁
Owner 乐凯胶片股份有限公司