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EVA (ethylene vinyl acetate) packaging adhesive film for solar photovoltaic modules and preparation method thereof

A solar photovoltaic and packaging film technology, applied in photovoltaic power generation, adhesives, electrical components, etc., can solve the problems of low production efficiency, high production energy consumption, and large time consumption, and achieve improved production efficiency and excellent light transmission. The effect of stable performance and storage performance

Inactive Publication Date: 2012-07-25
SUN YAT SEN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the curing temperature of EVA packaging film for solar photovoltaic modules is generally 140-145 ℃, the time is 20-30 minutes, and the degree of cross-linking is 70-90%, which means that it takes a lot of time and energy. Not only the production efficiency Low, and production energy consumption remains high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The EVA packaging film contains the following components: 100 parts of ethylene-vinyl acetate copolymer; 0.8 parts of tert-amyl peroxy-2-ethylhexyl carbonate; Parts; 0.5 parts of polysuccinic acid (4-hydroxy-2,2,6,6-tetramethyl-1-piperidine ethanol) ester. When the lamination temperature of solar photovoltaic modules is 130 ℃ and the lamination time is 12 minutes, the curing rate of EVA encapsulation film can reach more than 80%.

Embodiment 2

[0031] The EVA packaging film contains the following components: 100 parts of ethylene-vinyl acetate copolymer; 1.5 parts of tert-amyl peroxide-2-ethylhexyl carbonate; 3 parts of dibenzoyl peroxide; 4,4'-thio 0.2 part of bis(6-tert-butyl-3-methylphenol); 0.4 part of bis(1,2,2,6,6-pentamethylpiperidinol) sebacate. When the lamination temperature of the solar photovoltaic module is 130°C and the lamination time is 12 minutes, the curing rate of the EVA encapsulation film can reach more than 80%.

Embodiment 3

[0033] The EVA packaging film contains the following components: 100 parts of ethylene-vinyl acetate copolymer; 1.0 parts of tert-amyl peroxide-2-ethylhexyl carbonate; 3 parts of tert-butyl peroxide-2-ethylhexyl carbonate; [β-(3',5'-di-tert-butyl-4'-hydroxyphenyl)propionic acid]pentaerythritol ester 0.2 parts; polysuccinic acid (4-hydroxy-2,2,6,6-tetramethyl - 0.3 parts of 1-piperidine ethanol) ester. When the lamination temperature of the solar photovoltaic module is 125°C and the lamination time is 15 minutes, the curing rate of the EVA encapsulation film can reach more than 80%.

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PUM

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Abstract

The invention discloses an EVA (ethylene vinyl acetate) packaging adhesive film for solar photovoltaic modules and a preparation method thereof. The EVA packaging adhesive film consists of the following components in parts by weight: (1) 100 parts of ethylene vinyl acetate copolymer; (2) 0.5 to 5 parts of compound peroxide crosslinking agent; (3) 0.5 to 3 parts of silane coupling agent; (4) 0.1 to 0.5 parts of antioxidant; (5) 0.1 to 0.5 parts of light stabilizer. The ultrafast curing type EVA packaging adhesive film for the solar photovoltaic modules has the advantages that the curing temperature of the adhesive film is low, the curing time is short, the production efficiency of the solar modules can be effectively increased, energy consumption in production can be effectively reduced, and moreover, the adhesive film has excellent light transmission, anti-aging property and storability.

Description

technical field [0001] The invention relates to an EVA encapsulating adhesive film for solar photovoltaic components and a preparation method thereof. Background technique [0002] Ethylene Vinyl Acetate (EVA) is a copolymer of ethylene and vinyl acetate. The introduction of vinyl acetate structural units endows EVA resin with excellent flexibility; in addition, EVA resin has the advantages of high light transmittance, high bonding strength, good processing adaptability, and low price, so it is selected as a solar photovoltaic cell module. Adhesives for lamination packaging. However, EVA is a thermoplastic resin with low elasticity. Its heat resistance, solvent resistance, and cohesive strength are not good enough. It becomes soft and stretched when heated in the sun, and shrinks and hardens in severe cold weather. It is not suitable for direct use in solar cell packaging. , it is necessary to improve its deficiencies through cross-linking and curing. On the other hand, w...

Claims

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Application Information

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IPC IPC(8): C09J7/02C09J123/08C09J131/04C09J11/06H01L31/048
CPCY02E10/50
Inventor 阮文红薛涵与章明秋容敏智余鹏
Owner SUN YAT SEN UNIV
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