Novel EVA adhesive film

A kind of adhesive film, a new type of technology, applied in the direction of adhesives, film/sheet adhesives, electronic equipment, etc., can solve the problems of battery chip fragmentation, poor creep resistance, poor heat resistance, etc., to ensure service life, High photoelectric conversion efficiency and cost reduction effects
CN101353558AInactive Publication Date: 2009-01-28HANGZHOU FIRST APPLIED MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HANGZHOU FIRST APPLIED MATERIAL CO LTD
Publication Date
2009-01-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides an EVA adhesive film without adding uvioresistant absorbent, which is prepared mainly by the raw materials according to the mass ratio as follows: ethylene-vinyl acetate copolymer, 100 parts; peroxide type crosslinking agent 0.1 to 10 parts, phenolic or phosphite type antioxidant 0.05 to 5 parts; and hindered amine light stabilizer, 0.01 to 5 parts. As the ultraviolet absorbent is not used, the EVA adhesive film obtained does not produce ultra-violet cut-off, leads the solar modules to receive UV district light energy, thereby having higher photoelectric conversion efficiency and excellent uvioresistant anti-aging property, and guaranteeing the service life of PV modules.
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Description

(1) Technical field

[0001] The invention relates to a novel transparent EVA adhesive film used for encapsulating photovoltaic equipment. The adhesive film does not add ultraviolet absorber components and still has excellent ultraviolet aging resistance. (2) Background technology

[0002] If the solar cell is directly exposed to the air, its photoelectric conversion efficiency will drop quickly and lose its practical value. Therefore, the research and development of packaging materials for solar cells is very important. In order to achieve the purpose of isolating the atmosphere, the solar cells are encapsulated with an ethylene-vinyl acetate copolymer (EVA) film that is transparent, resistant to light aging, has good adhesive properties, can withstand atmospheric changes, and is protected with the upper and lower layers. The materials are bonded together to form solar cell modules.

[0003] EVA resin is a thermoplastic polymer material, which is a polymer with a linear mol...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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