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A kind of encapsulation material, related adhesive film and photovoltaic module and preparation method

A technology of packaging materials and packaging film, which is applied in the direction of photovoltaic power generation, film/sheet without carrier, adhesive, etc., can solve the problem of the bonding performance of packaging materials, the attenuation of bonding performance between packaging materials and glass, packaging materials and glass, and backplanes. Problems such as delamination and high reliability risk, to achieve the effect of reducing the bond strength reduction value

Active Publication Date: 2021-08-31
HANGZHOU FIRST APPLIED MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This leads to no residue of silane coupling agent in the packaging material after radiation treatment, so that although the initial bonding performance between the packaging material and glass, metal, battery sheet, and backplane is relatively large, it will undergo accelerated aging under high temperature and high humidity or accelerated aging due to freezing. After the test, the bonding performance of the packaging material, especially the bonding performance between the packaging material and the glass, was significantly attenuated, and even delamination occurred between the packaging material and the glass, backplane, etc. after aging, and there was a large reliability problem caused by delamination of photovoltaic modules. sexual risk

Method used

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  • A kind of encapsulation material, related adhesive film and photovoltaic module and preparation method
  • A kind of encapsulation material, related adhesive film and photovoltaic module and preparation method
  • A kind of encapsulation material, related adhesive film and photovoltaic module and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0096] Put 1 mole of vinyltriethoxysilane monomer in a 1L reaction kettle, slowly add 0.75 moles of water with a pH value of 2, and stir evenly. After adding the water, raise the temperature to 50°C. The reaction was continued for a total of 5 hours. After the reaction, the ethanol produced was removed by a rotary evaporator, and the remaining product was the desired vinyltriethoxysilane oligomer. Wherein, the mass proportion of the vinyltriethoxysilane oligomer whose polymerization degree Xn is 2-7 is 50% by weight, and the number average molecular weight is 688g / mol.

[0097] Prepare a kind of packaging adhesive film, it is prepared by following components: 100 parts by weight ethylene-vinyl acetate copolymers (the mass fraction of vinyl acetate is 33%), 0.2 parts by weight crosslinking agent tert-butyl peroxyisopropyl carbonate ester, 15 parts by weight of magnesium oxide and 5 parts by weight of titanium dioxide, 1 part by weight of sensitizer trimethylolpropane triacrylat...

Embodiment 2

[0100] Put 0.5 mole of γ-methacryloxypropyl trimethoxysilane monomer and 0.5 mole of vinyl tris (2-methoxyethoxy) silane monomer in a 1L reaction kettle, drop slowly Add 0.75 moles of water with a pH value of 2, and stir evenly. After the water is added, raise the temperature to 50°C and continue the reaction. Total reaction time is 5 hours. After the reaction, the methanol produced is removed by a rotary evaporator, and the remaining products are the required γ-methacryloxypropyl trimethoxysilane and vinyl tris(2-methoxyethoxy) Silane monomer copolymer mixture. The copolymerization mixture comprises γ-methacryloxypropyltrimethoxysilane homopolymer, vinyl tris(2-methoxyethoxy)silane homopolymer and γ-methacryloxypropyl Base trimethoxysilane and vinyl tri (2-methoxyethoxy) silane monomer copolymer; Wherein the degree of polymerization Xn is 2-7 The sum mass proportion of components is 75% by weight, and the number average molecular weight is 855g / mol.

[0101]Prepare a kind...

Embodiment 3

[0104] Put 0.5 mole of vinyltrimethoxysilane monomer and 0.5 mole of methylvinyldiethoxysilane monomer in a 1L reaction kettle, slowly drop 0.6 mole of water with a pH value of 2, and stir evenly. After the water was added, the temperature was raised to 50°C to continue the reaction. Total reaction time is 5 hours. After the reaction, the produced methanol is removed by a rotary evaporator, and the remaining product is the required copolymerization mixture of vinyltrimethoxysilane and methylvinyldiethoxysilane monomers. Wherein said copolymerization mixture comprises vinyltrimethoxysilane oligomer, methylvinyldiethoxysilane oligomer and vinyltrimethoxysilane and methylvinyldiethoxysilane copolymer, wherein polymerized The mass ratio of the component whose degree Xn is 2-7 is 75% by weight, and the number average molecular weight is 458g / mol.

[0105] Prepare an encapsulation film, which is prepared from the following components: 100 parts of metallocene catalyzed ethylene bu...

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Abstract

The invention relates to an encapsulation material, which improves the durable adhesion of the encapsulation material after aging by using an alkoxysilane oligomer adhesion promoter, and reduces fillers or Pigment spillage; the present invention also relates to an encapsulation film prepared by using the encapsulation material and a method for preparing the encapsulation film, and the present invention also relates to a photovoltaic module prepared from the encapsulation film and a method for preparing the photovoltaic assembly.

Description

technical field [0001] The invention relates to an encapsulation material, an encapsulation adhesive film prepared therefrom, a photovoltaic assembly prepared from the encapsulation adhesive film, and a method for preparing the encapsulation adhesive film and the photovoltaic assembly. Background technique [0002] With the continuous advancement of the goal of grid parity of photovoltaic modules, the pursuit of shorter lamination time and higher module power of photovoltaic modules. At the same time, with the increasing promotion of photovoltaic modules, there are also individualized appearance requirements, such as photovoltaic modules encapsulated by white packaging materials, black packaging materials, and colored packaging materials, which often require adding fillers or pigments to the packaging materials to increase reflection rate or for the purpose of color adjustment. However, when photovoltaic modules are laminated at high temperature, fillers or pigments will ov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/10C09J7/30C09J123/08C09J123/06C09J11/04C09J11/06C09J11/08C09J4/02C09J4/06H01L31/048
CPCC08K2003/222C08K2003/2241C08K2003/323C08L2205/03C08L2205/035C09J4/06C09J11/04C09J11/06C09J11/08C09J123/06C09J123/0815C09J123/0853C09J123/0869C09J2203/322C09J2423/04C09J7/10C09J2301/408H01L31/0481C08L83/04C08K3/22C08K13/02C08K3/32C08K5/053C08K3/04C08L23/0853C08L23/0815C08L23/0869C08L23/16C08K3/042Y02E10/50
Inventor 彭瑞群唐国栋周光大梅云宵侯宏兵桑燕
Owner HANGZHOU FIRST APPLIED MATERIAL CO LTD
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