High-partial-discharge-voltage photovoltaic backplane

A photovoltaic backplane, high partial discharge technology, applied in the direction of layered products, synthetic resin layered products, chemical instruments and methods, etc. Effect

Active Publication Date: 2015-04-08
HANGZHOU FIRST APPLIED MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of water vapor barrier, the level of ordinary backsheets on the market can be controlled within 3.0g/m2.day, which has met the requirements for the use of photovoltaic modules; in terms of insula

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0105]In the manufacturing process of the backboard, firstly, polyethylene terephthalate (U.S. DuPont Company) 85wt%, inorganic filler titanium dioxide R902 (U.S. DuPont Company) 10wt%, hydrolysis stabilizer monomer carbodiimide I powder ( Rheinland Chemical) 2wt%, anti-thermal and oxidative aging agent bisphenol A bis(diphenyl phosphate) (Gansu Provincial Research Institute of Chemical Industry) 1wt%, after mixing evenly, melt processing at 250-260°C and cast into a film A 250 micron thick polyester substrate film was obtained.

[0106] Then, a 5 micron thick weather resistant tie coat was rolled on one side of the polyester base layer. The adhesive layer coating ingredients are acrylic resin 7105# (DSM) 75wt%, inorganic filler titanium dioxide R960 (DuPont, USA) 15wt%, UV absorber 2,4-bis(2-hydroxy-4-alkoxy ) phenyl-6-(4-biphenyl)-1,3,5-triazine (Medical Chemical Manufacturing Co., Ltd.) 0.1wt%, light stabilizer bis-1-decyloxy-2,2 , 6,6-tetramethylpiperidin-4-ol sebacate (...

Embodiment 2

[0110] In the manufacturing process of the backsheet, 87wt% polybutylene terephthalate (DuPont, USA), 8wt% inorganic filler titanium dioxide (DuPont, USA), 8wt% polybutylene terephthalate (DuPont, USA), 8wt% hydrolysis stabilizer monomer carbodiimide P200 (Germany Rhine Chemicals) 4wt%, anti-thermal and oxidative aging agent tris(1,2,2,6-pentamethyl-4-4-piperidinyl) phosphite (Gansu Provincial Research Institute of Chemical Industry) 1wt%, after mixing evenly Melt processing at 250-260°C and casting into a film to prepare a 200 micron thick polyester base layer film.

[0111] Then, a 10-micron thick weather-resistant tie coat was rolled on one side of the polyester base layer. The adhesive layer coating ingredients are 90wt% of fluororesin DM-301 (Jiangsu Kelong Company), 9.4wt% of curing agent isophorone diisocyanate trimer (German Bayer Company), 9.4wt% of catalyst dioctyltin dilaurate (Shanghai Xindian Chemical Co., Ltd.) Materials Limited) 0.6wt%. Prepared by mixing raw ...

Embodiment 3

[0115] In the manufacturing process of the backsheet, 90wt% of polyethylene naphthalate (Changchun, Taiwan), 5wt% of inorganic filler titanium dioxide R902 (DuPont, USA), and polycarbodiimide P400 (Germany Rheinland Chemical Co., Ltd.) ) 3wt%, thermal oxygen aging agent 1,3,5-tris(4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl)-1,3,5-triazine-2, 4,6-(1H,3H,5H)-triketone (Gansu Provincial Institute of Chemical Industry) 2 wt%, mixed evenly, melted and processed at 250-260°C and cast into a film to obtain a 300 micron thick polyester matrix layer film.

[0116] Then, one side of the polyester base layer was sprayed with a 20 micron thick weather resistant tie coat. The adhesive layer coating ingredients are GK5790 alkyd resin (Toyobo Co., Ltd., Japan) 80wt%, inorganic filler aluminum hydroxide (Hefei Zhongke Co., Ltd.) 10.2wt%, curing agent isophorone diisocyanate prepolymer (Bayer Co., Ltd., Germany) 8.8wt%, catalyst zinc naphthenate (Shanghai Xindian Chemical Materials Co., Ltd.)...

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Abstract

The invention discloses a high-partial-discharge-voltage photovoltaic backplane, which is formed by sequentially bonding an olefin copolymer layer, a weather-proof bonding layer, a polyester matrix layer and a weather-proof layer. The prepared backplane has high partial discharge voltage, and also has the good water vapor barrier property and the excellent mechanical strength and outdoor weather resistance. The photovoltaic backplane has excellent performances and is suitable for photovoltaic modules of large systems.

Description

technical field [0001] The invention relates to a high partial discharge voltage photovoltaic backplane, which belongs to the field of photovoltaic packaging materials. Background technique [0002] In recent years, with the change of climatic conditions, the level of global air pollution has become more and more serious. In my country, the frequency of smog weather is also continuously increasing, causing significant adverse effects on the environment, health, economy and other aspects. Therefore, controlling petrochemical energy and increasing the development of new energy has become an important task of globalization. Among them, the fastest growing one is the inexhaustible clean new energy - solar energy. With the deepening of solar energy industrialization and technology development, its application scope has gradually expanded, and its power generation efficiency has also been continuously improved. However, the electricity price of photovoltaic power generation is ...

Claims

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Application Information

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IPC IPC(8): B32B27/08B32B27/32B32B27/28B32B27/30
CPCB32B27/08B32B27/18B32B27/28B32B27/32B32B27/36
Inventor 林维红穆丹华王广志周光大
Owner HANGZHOU FIRST APPLIED MATERIAL CO LTD
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