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Aging-resistant glue film for packaging solar cell and preparation method for glue film

A solar cell and encapsulation adhesive film technology, applied in circuits, adhesives, photovoltaic power generation, etc., can solve problems affecting the light transmittance of EVA adhesive film, solar cell service life, EVA degradation and aging, and performance degradation, etc., to achieve low cost and excellent performance Anti-aging, impact reduction effect

Active Publication Date: 2013-01-16
宁波威克丽特功能塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the solar cell packaging film is made of EVA (ethylene-vinyl acetate copolymer) film. This film will undergo photothermal aging under the conditions of use, which will lead to degradation and aging of EVA, performance degradation, yellowing, and serious impact. The light transmittance of EVA film and the service life of solar cells

Method used

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  • Aging-resistant glue film for packaging solar cell and preparation method for glue film
  • Aging-resistant glue film for packaging solar cell and preparation method for glue film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] In parts by mass, add 1 part of POE grafted acrylic copolymer polar resin, 0.2 part of vinyltriethoxysilane tackifier, 0.1 part of 2,5-dimethyl-2, 5 bis(tert-butylperoxy)hexane crosslinking agent, 0.1 part of 2,6-di-tert-butyl-4-methylphenol antioxidant, 0.05 part of fumed silica UV absorber and 0.05 part of bis( 2,2,6,6-Tetramethyl-4-piperidinyl) sebacate UV light stabilizer is mixed uniformly and put into the extruder for mixing, the temperature of the extruder is controlled at 85°C, and the obtained extrudate The film is formed by tape casting and calendering, shaped by cooling and pulling, and finally the solar cell encapsulating adhesive film A-1 with a thickness of 0.5 mm is obtained through the winding process.

Embodiment 2

[0041] In terms of parts by mass, add 5 parts of POE grafted maleic anhydride copolymer polar resin, 0.6 parts of vinyltrimethoxysilane tackifier, 0.1 part of 2,5-dimethyl-2 ,5 bis(tert-butyl peroxy)hexane crosslinking agent, 0.2 parts of 2,6-di-tert-butyl-4-methylphenol antioxidant, 0.2 parts of fumed silica UV absorber and 0.2 parts of bis (2,2,6,6-Tetramethyl-4-piperidinyl) sebacate UV light stabilizer is mixed evenly and put into the extruder for kneading. The temperature of the extruder is controlled at 100°C. The material was formed into a film by casting and calendering, and shaped by cooling and pulling, and finally a solar cell encapsulating adhesive film A-2 with a thickness of 0.5 mm was obtained through a winding process.

Embodiment 3

[0043] In terms of parts by mass, add 10 parts of POE grafted glycidyl methacrylate copolymer polar resin, 0.5 parts of γ-aminopropyltriethoxysilane tackifier, 0.5 parts of peroxide to 100 parts of POE raw materials Dicumyl (DCP) crosslinking agent, 0.1 part of tris(2,4-di-tert-butylphenyl) phosphite antioxidant, 0.1 part of 2-hydroxy-4-n-octyloxybenzophenone UV The light absorber and 0.1 part of bis(1-octyloxy-2,2,6,6-tetramethyl-4-piperidinyl) sebacate UV light stabilizer are mixed uniformly and put into the extruder for mixing. The temperature of the extruder is controlled at 60°C, and the extruded product is cast and calendered to form a film, cooled and pulled to shape, and finally a solar cell encapsulation film A- 3.

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Abstract

The invention relates to an aging-resistant glue film for packaging a solar cell and a preparation method for the glue film. The glue film is prepared from the following raw materials in part by mass: 100 parts of polyethylene octene elastomer (POE), 1 to 50 parts of polarity resin, 0.1 to 1.0 part of tackifier, 0.1 to 2 parts of cross-linking agent, 0.1 to 0.5 part of antioxidant, 0.05 to 0.25 part of ultraviolet absorber, and 0.05 to 0.25 part of ultraviolet stabilizer, wherein the melt flow index of POE is 0.5 to 30g / 10min, and the light transmittance of POE is more than or equal to 80 percent; the preparation method comprises the following steps of: uniformly mixing raw materials, putting mixed raw materials into an extruder, and blending; performing tape casting on the obtained extrudate, and rolling to obtain a film; cooling and drawing for shaping; and winding to obtain the glue film. The glue film for packaging the solar cell is aging-resistant, and cannot be yellowed easily; by using the glue film, the service life of the solar cell can be prolonged; the preparation method is simple; the glue film is low in cost and can be produced on large scale; and the production efficiency is high.

Description

technical field [0001] The invention belongs to the field of solar cell packaging adhesive film and its preparation, in particular to an aging-resistant solar cell packaging adhesive film and a preparation method thereof. Background technique [0002] Solar energy has the advantages of safety, reliability, no noise, no pollution, renewable, wide coverage, etc. It is currently the most important new energy source, and its main application form is solar cell power generation. With the continuous development of solar cells, how to increase the life of solar cells and reduce the cost of solar cells by improving packaging materials and packaging processes has become one of the key issues. Solar cell modules include photovoltaic modules, glass cover plates, encapsulation films, and back sheet materials. Among them, the encapsulation film is required to have good light transmittance to ensure the luminous flux incident on the photovoltaic module. [0003] At present, the solar ce...

Claims

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Application Information

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IPC IPC(8): C09J7/00C09J123/08C09J123/20C09J151/06C09J11/06C09J11/04H01L31/048
CPCY02E10/50
Inventor 张发饶
Owner 宁波威克丽特功能塑料有限公司
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