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Packaging adhesive film composition and application thereof

A technology for encapsulating adhesive films and compositions, which is applied in the fields of renewable energy integration, sustainable architecture, climate sustainability, etc. It can solve the problems of long molding cycle, high price, and inappropriateness, and achieve excellent aging resistance, anti-aging High die weight and good bonding strength

Active Publication Date: 2011-01-12
SUZHOU FIRST PV MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PVB has a long molding cycle and must be transported and stored at low temperature. It is not only expensive but also not suitable for general-purpose photovoltaic module lamination processing in batches.
When EVA is used in double-layer glass-encapsulated crystalline silicon battery components, the bonding strength between EVA and glass is not high, and the impact strength cannot meet the structural strength requirements of building materials, so it is generally not used as the main building material

Method used

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  • Packaging adhesive film composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] In terms of mass fraction, 95 parts of VA (vinyl acetate) mass content is 33% ethylene-vinyl acetate copolymer (U.S. DuPont PV 1200), adding 2 parts of Mooney viscosity is 31 ethylene-octene copolymer ( U.S. Exxon Mobil Corporation POE 5061), add 2 parts of medium molecular weight polyisobutylene (German BASF B15SFN), 0.05 part of UV absorber 2-(2-hydroxyl-3,5-di-tert-amylphenyl) benzotriazole (U.S. Ciba Specialty Chemicals UV-328), 0.05 part of histamine antioxidant Reagent poly[[6-1,1,3,3,-tetra-methylbutyl)amino]-S-triazine-2,4-diyl], [[(2,2,6,6-tetra Methyl-4-piperidinyl) imino]] CHIMASSORB 944 (U.S. Ciba Specialty Chemicals), 1.5 parts of peroxide cross-linking agent tert-butylperoxyneodecanoic acid ( TAPD), and mix well.

[0027] The mixture is blended and extruded in an extruder, and the temperature is controlled at 90°C. The extruded product is cast, cooled, cut, and coiled to obtain a packaging film with a thickness of 0.5mm, which is denoted as S- 1.

Embodiment 2

[0029] In terms of mass fraction, 65 parts of VA content is 15% ethylene-vinyl acetate copolymer (Elvax 250 of Mitsui DuPont Co., Ltd. of Japan), and 20 parts of Mooney viscosity is 5.0 ethylene-octene copolymer (U.S. Exxon Mobil Corporation POE 0210), add 9.5 parts of medium molecular weight polyisobutylene (German BASF B12N), add 2 parts of UV absorber 2-(2'-hydroxyl-5-methylphenyl) benzotriazole, 0.5 parts of antioxidant bis-2,2,6,6-tetramethyl Piperidinol ester (Tinuvin 770), 3 parts crosslinker o, o-tert-amyl-o-(2-ethylhexyl)-mono-peroxycarbonate (AkzoNobel Peroxide Ltd.), and well mixed.

[0030] The mixture is blended and extruded in an extruder, and the temperature is controlled at 90°C. The extruded product is cast, cooled, cut, and coiled to obtain a packaging film with a thickness of 0.5mm, which is denoted as S- 2.

Embodiment 3

[0032] In terms of mass fraction, in 68 parts of ethylene-vinyl acetate copolymer (Japan Ube V215) with VA content of 15%, add 17 parts of ethylene-octene copolymer with Mooney viscosity of 18.0 (POE 5101), add 12 parts of medium molecular weight polyisobutylene (Zhejiang Shunda Polymer Material Co., Ltd.), 0.05 part of UV absorber 2-(2'-hydroxyl-5-methylphenyl) benzotriazole, 2 parts of antioxidant Agent 1,3,5-tris(4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl)-1,3,5-triazine-2,4,6-(1H,3H ,5H)-triketone / bis(2,4-dicumylphenyl)pentaerythritol diphosphite complex CYANOX 2777, 1 part crosslinker o,o-tert-butyl-o-(2-ethyl Hexyl)-mono-peroxycarbonate ( TBEC), and mix well.

[0033] The mixture is blended and extruded in an extruder, and the temperature is controlled at 90°C. The extruded product is cast, cooled, cut, and coiled to obtain a packaging film with a thickness of 0.5mm, which is denoted as S- 3.

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Abstract

The invention relates to a packaging adhesive film composition and application thereof. The composition mainly comprises the following components in parts by mass: 65-95 parts of ethylene-vinyl acetate copolymer, 2-20 parts of ethylene-octylene copolymer, 2-15 parts of medium molecular weight polyisobutylene, 0.1-3 parts of cross-linking agent, 0.05-2 parts of ultraviolet stabilizer and 0.05-2 parts of hindered amine antioxidant. The composition has the advantages of excellent aging resistance, high bonding strength with glass, high impact resistance modulus and easy processing, and is suitable for packaging a double-layer glass solar battery pack of BIPV or double-layer glass of decorative buildings in the aspects of tear strength and impact resistance modulus.

Description

(1) Technical field [0001] The invention relates to an encapsulation adhesive film composition and its application. The composition has good light transmittance, high impact modulus and strong adhesion to glass, and is suitable for solar cell photovoltaic modules and double-layer glass in the integration of building and photovoltaic Packaging photovoltaic modules or laminated glass inner packaging materials. (2) Background technology [0002] Solar power generation-building integration (BIPV) makes the building itself play the role of energy supply, and the solar cell module is directly embedded in the building as a roof or a component of the photovoltaic curtain wall while having the function of generating electricity. As a part of building materials, solar cell modules need to maintain the aesthetic characteristics of the main body of the building structure, so the solar cell modules used in BIPV need to be encapsulated with front and rear double-layer glass and transparen...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L23/20C08K5/14C08K5/3475H01L31/0203H01L31/048
CPCY02B10/10Y02E10/50
Inventor 周光大张恒侯宏兵林建华
Owner SUZHOU FIRST PV MATERIAL CO LTD
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