EVA adhesive film for packaging solar photovoltaic module, and preparation method thereof

A solar photovoltaic and adhesive film technology, applied in adhesives, electrical components, semiconductor devices, etc., can solve the problems of reduced photoelectric conversion efficiency of solar photovoltaic modules, affecting the service life of solar photovoltaic modules, and decreased light transmittance of adhesive films. Electrical insulation performance, good transparency, and the effect of increasing the degree of crosslinking

Inactive Publication Date: 2019-09-13
北京知淘科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, it has been found that solar photovoltaic modules are exposed to the natural environment for a long time, and the EVA film used is easily affected by factors such as light, heat, oxygen, and moisture. , which in turn causes the photoelectric conversion efficiency of solar photovoltaic modules to decrease, and the power loss increases significantly, which seriously affects the service life of solar photovoltaic modules

Method used

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  • EVA adhesive film for packaging solar photovoltaic module, and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] The EVA adhesive film for encapsulating solar photovoltaic modules of this embodiment is prepared from the following raw materials in parts by weight: 100 parts of EVA resin, 0.9 parts of tert-butyl peroxy-2-ethylhexyl carbonate, 2,5-dimethyl 0.6 parts of 2,5-bis(tert-butylperoxy)hexane, 0.45 parts of 3-methacryloxypropyl triethoxysilane, 0.15 parts of vinyl triethoxysilane, methyl 4.0 parts of vinyl silicone resin, 0.10 parts of ultraviolet absorber, and 0.10 parts of antioxidant.

[0032] The preparation method of the solar photovoltaic module encapsulation EVA adhesive film of the present embodiment comprises the following steps:

[0033]1) Put the formulated amount of EVA resin granules in a high-speed mixer, take the formulated amount of methyl vinyl silicone resin powder and add it to the EVA resin granules, stir at a speed of 1000rpm for 5 minutes to make the system evenly mixed; then add the formulated amount Peroxy-2-ethylhexyl tert-butyl carbonate, 2,5-dimeth...

Embodiment 2

[0037] The EVA adhesive film for encapsulating solar photovoltaic modules of this embodiment is prepared from the following raw materials in parts by weight: 100 parts of EVA resin, 0.8 parts of tert-butyl peroxy-2-ethylhexyl carbonate, 2,5-dimethyl 0.7 parts of 2,5-bis(tert-butylperoxy)hexane, 0.40 parts of 3-methacryloxypropyl triethoxysilane, 0.20 parts of vinyl triethoxysilane, methyl 3.5 parts of vinyl silicone resin, 0.15 parts of ultraviolet absorber, and 0.05 parts of antioxidant.

[0038] The preparation method of the solar photovoltaic module encapsulation EVA adhesive film of the present embodiment comprises the following steps:

[0039] 1) Put the formulated amount of EVA resin granules in a high-speed mixer, take the formulated amount of methyl vinyl silicone resin powder and add it to the EVA resin granules, and stir at a speed of 1200rpm for 3 minutes to make the system evenly mixed; then add the formulated amount Peroxy-2-ethylhexyl tert-butyl carbonate, 2,5-d...

Embodiment 3

[0043] The EVA adhesive film for encapsulating solar photovoltaic modules of this embodiment is prepared from the following raw materials in parts by weight: 100 parts of EVA resin, 1.0 parts of tert-butyl peroxy-2-ethylhexyl carbonate, 2,5-dimethyl 0.5 parts of 2,5-bis(tert-butylperoxy)hexane, 0.50 parts of 3-methacryloxypropyl triethoxysilane, 0.10 parts of vinyl triethoxysilane, methyl 4.5 parts of vinyl silicone resin, 0.12 parts of ultraviolet absorber, and 0.08 parts of antioxidant.

[0044] The preparation method of the solar photovoltaic module encapsulation EVA adhesive film of the present embodiment comprises the following steps:

[0045] 1) Put the formulated amount of EVA resin granules in a high-speed mixer, take the formulated amount of methyl vinyl silicone resin powder and add it to the EVA resin granules, stir at a speed of 1000rpm for 5 minutes to make the system evenly mixed; then add the formulated amount Peroxy-2-ethylhexyl tert-butyl carbonate, 2,5-dimet...

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Abstract

The invention relates to an EVA adhesive film for packaging a solar photovoltaic module, and a preparation method thereof. The EVA adhesive film is mainly prepared from, by weight, 100 parts of EVA resin, 0.8-1.0 part of tert-butylperoxy 2-ethylhexyl carbonate, 0.5-0.7 part of 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane, 0.40-0.50 part of 3-methacryloxypropyltriethoxysilane, 0.10-0.20 part of vinyltriethoxysilane, 3.5-4.5 parts of methyl vinyl silicone resin, 0.10-0.15 part of an ultraviolet absorber and 0.05-0.10 part of an antioxidant. The EVA adhesive film has good mechanical properties andlight transmittance, has a good bonding performance with cover plate glass and back plates, and meets use requirements; and the EVA adhesive film has good resistance to damp heat aging and ultraviolet aging, is safe and reliable, and can significantly extend the service life of the solar photovoltaic module.

Description

technical field [0001] The invention belongs to the technical field of solar photovoltaic module packaging, in particular to an EVA adhesive film for solar photovoltaic module packaging, and also relates to a preparation method of the above-mentioned EVA adhesive film for solar photovoltaic module packaging. Background technique [0002] As a green energy that is clean, safe, abundant in reserves, widely distributed, and sustainable in use, solar energy has infinite potential for development, and is known as an ideal way to solve the energy crisis and environmental pollution problems faced by human society. At present, people's utilization of solar energy resources is mainly photoelectric utilization, that is, the photovoltaic power generation system converts sunlight energy into electrical energy, and then uses it in the form of electrical energy and kinetic energy through circuit transmission. [0003] Due to the low photoelectric conversion efficiency of solar cells, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/10C09J7/30C09J123/08C09J183/07C09J11/08C09J11/06H01L31/048
CPCC08K2201/014C08L2201/08C09J11/06C09J11/08C09J123/0853C09J7/10C09J7/30C08L83/04C08K5/00C08K5/14C08K5/5425C08K5/3475C08K5/1345C08K5/527
Inventor 魏晓峰
Owner 北京知淘科技有限责任公司
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