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Halogen-free transparent flame-retardant photovoltaic encapsulating material and preparation method of halogen-free transparent flame-retardant photovoltaic encapsulating material

A packaging material, photovoltaic technology, applied in photovoltaic power generation, electrical components, circuits, etc., can solve problems such as easy overflow, affecting the appearance and power generation performance of components, and easy overflow to the front of crystalline silicon cells.

Active Publication Date: 2015-04-22
HANGZHOU FIRST APPLIED MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, white or milky white flame retardant EVA, due to its low light transmittance, can only be used as the back layer EVA (located between the crystalline silicon cell and the back sheet) in the component, and the flame retardant performance of the improved component is limited; at the same time, the white Or milky white flame retardant EVA has the problem of easy overflow, that is, white or milky white flame retardant EVA is easy to overflow to the front of the crystalline silicon cell during the module preparation process, affecting the appearance of the module and power generation performance

Method used

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  • Halogen-free transparent flame-retardant photovoltaic encapsulating material and preparation method of halogen-free transparent flame-retardant photovoltaic encapsulating material
  • Halogen-free transparent flame-retardant photovoltaic encapsulating material and preparation method of halogen-free transparent flame-retardant photovoltaic encapsulating material
  • Halogen-free transparent flame-retardant photovoltaic encapsulating material and preparation method of halogen-free transparent flame-retardant photovoltaic encapsulating material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A halogen-free transparent flame-retardant flame-retardant photovoltaic encapsulation material, in parts by weight, its main raw material composition is as follows: 100 parts of ethylene-vinyl acetate copolymer (U.S. DuPont, VA mass fraction is 33%), 8 parts of phosphoric acid ester BDP-like flame retardant, 0.1 part of silicone flame retardant RM4-7105 (Dow Corning, USA), 0.5 part of nano-zinc oxide modified by silane coupling agent KH550, 0.1 part of hindered amine light stabilizer sebacic acid bis-2 , 2,6,6-tetramethylpiperidinol ester (Shanghai Yanjia Plastic Chemical Co., Ltd.), 0.2 parts of antioxidant 1,3,5-tris(4-tert-butyl-3-hydroxy-2,6 -Dimethylbenzyl)-1,3,5-triazine-2,4,6-(1H,3H,5H)-trione and tris(2,4,-di-tert-butylphenyl) Phosphate ester compound (mass ratio 1:2, Tianda Tianhai Technology Development Co., Ltd.), 0.2 parts of crosslinking agent tert-butyl peroxyisopropyl carbonate (Bailingwei Technology Co., Ltd.), 0.1 part of UV absorber 2, 2-Tetramethylen...

Embodiment 2

[0034] A halogen-free transparent flame-retardant photovoltaic encapsulation material, in parts by weight, its composition is as follows: 100 parts of ethylene vinyl acetate copolymer (U.S. DuPont, VA mass fraction is 16%), 5 parts of RDP, 8 parts of RM4-7081 (U.S. Dow Corning Corporation), 0.01 part of silane coupling agent KH550 modified aluminum hydroxide, 0.1 part of hindered amine light stabilizer sebacic acid bis-2,2,6,6-tetramethyl piperidinol ester (Shanghai Yanjia Plastic Chemical Co., Ltd.), 0.2 parts of antioxidant 1,3,5-tris(4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl)-1,3,5-tris Oxazine-2,4,6-(1H,3H,5H)-trione / tris(2,4,-dicumylphenyl)pentaerythritol diphosphite compound (mass ratio 1:4, Tiandatianhai Science and Technology Development Co., Ltd.), 1.5 parts of cross-linking agent 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane (Shanghai Base Free Biotechnology Co., Ltd.), 0.1 part of UV absorber Agent 2,2-tetramethylenebis(3,1-benzoxazin-4-one) (Nanjing Zhonghesheng Te...

Embodiment 3

[0042] A halogen-free transparent flame-retardant photovoltaic encapsulation material, in parts by weight, its composition is as follows: 100 parts of ethylene-vinyl acetate copolymer (U.S. DuPont Company, VA mass fraction is 40%), 20 parts of TPP and DMMP composite resistance Burning agent (the mass ratio of the two is 1:1), 3 parts of SFR-100 (General Electric Company of the United States), 0.05 part of magnesium hydroxide modified by silane coupling agent KH570, 0.1 part of hindered amine light stabilizer bis(1 ,2,2,6,6-Pentamethyl-4-piperidinyl) aquilate / Methyl-1,2,2,6,6-pentamethyl-4-piperidinyl abrate Compound (mass ratio 1:1, Beijing Tiangang Co., Ltd.), 0.2 parts of antioxidant 1,3,5-tris(4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl )-1,3,5-triazine-2,4,6-(1H,3H,5H)-trione / tris(2,4,-dicumylphenyl)pentaerythritol diphosphite compound ( Mass ratio 1:4, Tianda Tianhai Science and Technology Development Co., Ltd.), 1.5 parts of crosslinking agent 1-bis(tert-butyl peroxide)-3...

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Abstract

The invention discloses a halogen-free transparent flame-retardant photovoltaic encapsulating material and a preparation method of the halogen-free transparent flame-retardant photovoltaic encapsulating material. The material consists of a photovoltaic encapsulating base material, a phosphate flame retardant, an organic silicon flame retardant and a coupling agent-modified inorganic nano flame retardant and the like. By means of the flame retardant mechanism of a condensed phase of the phosphate flame retardant and combining a synergic flame retardant mechanism of the organic silicon flame retardant and the coupling agent-modified inorganic nano flame retardant, the additions of the flame retardants are effectively reduced, so that the characteristic of high transparency of the material is maintained while the flame retardance of photovoltaic encapsulation is improved; by adding other auxiliaries, performances of the halogen-free transparent flame-retardant photovoltaic encapsulating material such as insulating property, damp and heat resistance, ultraviolet aging resistance and the like satisfy the requirement of the photovoltaic encapsulating field.

Description

technical field [0001] The invention relates to a halogen-free transparent flame-retardant photovoltaic packaging material and a preparation method thereof. Background technique [0002] As a clean, noise-free renewable energy source, photovoltaics also have the advantage of not emitting greenhouse gases. With the increasing demand for energy and the increasing severity of environmental pollution, better use of solar energy is considered to be one of the best solutions. In practical applications, most solar cells are packaged into a "sandwich" structure, typically such as: glass / EVA / ARC-Si / EVA / TPT structure. However, the oxygen index of EVA in the above structure is only 19, which belongs to flammable material, and it is easy to produce black smoke with toxic gas when burning. [0003] Although at present, by adding highly efficient halogen-free intumescent flame retardants, white or milky white flame-retardant EVA can achieve flame-retardant performance up to UL94-V2 leve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/04C08K13/06C08K9/06C08K3/22C08K5/14C08K5/3492C08K5/526C08K5/544C08K5/132C08K3/36C08K5/521C08K5/523C08K5/527H01L31/048
CPCY02E10/50C08K13/06C08K3/22C08K3/36C08K5/3435C08K5/521C08K5/523C08K5/526C08K9/06C08K2003/2224C08K2003/2227C08K2003/2296H01L31/048C08L23/0853C08L23/06C08L23/0869
Inventor 彭瑞群侯宏兵
Owner HANGZHOU FIRST APPLIED MATERIAL CO LTD
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