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Polymer packaging material and application thereof

A packaging material and polymer technology, applied in other chemical processes, photovoltaic power generation, electrical components, etc., can solve problems such as low moisture barrier performance, unsustainable adhesion between front and rear substrates, and inability to meet use requirements, and achieve water vapor transmission. rate reduction, maintain lasting adhesion, reduce water vapor penetration

Active Publication Date: 2012-07-25
HANGZHOU FIRST APPLIED MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In solar cell modules, the most widely used packaging material is ethylene-vinyl acetate copolymer (EVA), which can improve heat resistance and creep resistance by adding crosslinking agent, adding antioxidant and stabilizing Adding a tackifier to improve the aging resistance and adding a tackifier to improve the adhesion can basically meet the requirements of the solar cell module. However, due to the low barrier performance of the EVA resin to moisture, it will penetrate into the module during long-term outdoor use. The moisture often makes the tackifier invalid, so the adhesion of the packaging material to the front and rear substrates cannot last long, and cannot meet the use requirements of more than 20 years

Method used

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  • Polymer packaging material and application thereof
  • Polymer packaging material and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] In parts by mass, 100 parts of VA content is 33% (w / w) in the ethylene-vinyl acetate copolymer (EVA, Du Pont Company), add 0.1 part of graft initiator tert-amyl neodecanoate (Germany Gusai Company), 2 parts of organosilicon graft monomer vinyltrimethoxysilane (U.S. Union Carbide), 0.1 part of light stabilizer bis-1-decyloxy-2,2,6,6-tetramethyl Piperidin-4-ol sebacate (Swiss Ciba), 0.2 parts of antioxidant 2,2'-methylene-bis-(4-ethyl-6-tert-butylphenol) (Switzerland Ciba), 1.5 parts of cross-linking curing agent ortho, o-tert-amyl-o-(2-ethylhexyl)-mono-peroxycarbonate (Akzo Nobel Company) and 4 parts of tackifier KH550 (Jiangsu Chenguang Coupling Agent Co., Ltd.), and mix well. The mixture is blended and extruded in the extruder, the extrusion temperature is controlled at 90±1°C, the residence time of the mixture in the extruder is 3min, and the extruded product is cast into a film, cooled, cut, coiled process, the encapsulating adhesive film S-1 with a thickness of 0....

Embodiment 2

[0029]In terms of parts by mass, in 100 parts of branched polyethylene (brPE, Mitsui-DuPont) whose melting temperature is not more than 80°C, add 0.2 parts of graft initiator bis(dibutyl) peroxydicarbonate (Degussa Company) ), 4 parts of silicone grafting monomer vinyltriethoxysilane (United States Carbide Corporation), 1.5 parts of light stabilizer N, N'-bis(2,2,6,6-tetramethyl-4- Polymer of piperidinyl)-1,6-hexanediamine and 2,4-dichloro-6-(1,1,3,3-tetramethylbutyl)amino-1,3,5-triazine (Swiss Ciba), 0.2 parts of antioxidant 1,3,5-tris(4-tert-butyl-3-hydroxyl-2,6-dimethylbenzyl)-1,3,5-tris Oxyzine-2,4,6-(1H,3H,5H)-trione / tris(2,4-di-tert-butylphenyl)phosphite compound (Swiss Ciba), 3.0 parts cross-linked and cured Agent n-butyl 4,4-bis(tert-butylperoxy)valerate (Akzo Nobel Company) and 2 parts of tackifier KH550 (Jiangsu Chenguang Coupling Agent Co., Ltd.), and mix well. The mixture is blended and extruded in the extruder, the extrusion temperature is controlled at 90±1°C, ...

Embodiment 3

[0031] In parts by mass, 100 parts of melt index are 30g / min metallocene catalyzed polyethylene PEKN (Mitsubishi Chemical Corporation), add 0.2 parts of graft initiator peroxydicarbonate two (dibutyl) (Degussa Corporation), 4 parts of silicone grafting monomer vinyltriethoxysilane (United States Carbon Corporation), 1.5 parts of light stabilizer N, N'-bis(2,2,6,6-tetramethyl-4-piperidine base)-1,6-hexanediamine and 2,4-dichloro-6-(1,1,3,3-tetramethylbutyl)amino-1,3,5-triazine (Switzerland Ciba), 0.2 parts of antioxidant 1,3,5-tris(4-tert-butyl-3-hydroxyl-2,6-dimethylbenzyl)-1,3,5-triazine- 2,4,6-(1H,3H,5H)-triketone / tris(2,4-di-tert-butylphenyl) phosphite compound (Swiss Ciba), 3.0 parts of cross-linking curing agent Butyl 4,4-bis(tert-butylperoxy)valerate (AkzoNobel) and 4 parts of tackifier KH550 (Jiangsu Chenguang Coupling Agent Co., Ltd.), and mix well. The mixture is blended and extruded in the extruder, the extrusion temperature is controlled at 90±1°C, the residence t...

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Abstract

The invention provides a polymer packaging material, which is prepared from the following raw materials in part by mass: 100 parts of polymer resin, 0.05 to 0.5 part of graft initiator, 0.5 to 5 parts of organic silicon graft monomer, 0.1 to 10 parts of peroxide cross-linking agent, 0.05 to 5 parts of phenols or phosphite ester antioxidant, 0.01 to 5 parts of hindered amine light stabilizer, and 0.01 to 5 parts of tackifier. The polymer packaging material has the main advantages that: compared with the conventional packaging film in the market, the polymer packaging film has the water-vapor transmissivity reduced by 4 to 6 times; after the polymer packaging film is subjected to humid heat aging test for 2,000 hours, the peel strength of the polymer packaging film from glass is reduced by no more than 50 percent; and the polymer packaging material has good application prospect.

Description

(1) Technical field [0001] The invention relates to a polymer packaging material and its application. (2) Background technology [0002] Polymer encapsulation materials are usually used to prepare electronic device modules, which include solar cells, liquid crystal panels, plasma display units and light-emitting panels, etc., and the modules are made of polymer encapsulation materials. formed between the front and rear substrates. For example, for solar cell modules, the front substrate is made of glass and other high-transmittance materials, and the rear substrate is made of highly weather-resistant fluorine-containing materials. It is required that the module can be used outdoors for more than 20 years, which also requires packaging materials that can protect the solar cells from front and rear More than 20 years in the substrate, avoiding exposure to air and moisture in the external environment, requires packaging materials to have long-lasting adhesion to the front and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L51/06C08L51/00C08K5/14C08K5/13C08K5/524C08K5/17C09K3/10H01L31/048
CPCY02E10/50
Inventor 杨楚峰张恒侯宏兵潘建军
Owner HANGZHOU FIRST APPLIED MATERIAL CO LTD