Unlock instant, AI-driven research and patent intelligence for your innovation.

Black EVA material for packaging solar cell module

A technology of solar cells and components, applied in electrical components, circuits, photovoltaic power generation, etc., can solve problems such as inability to meet market needs, achieve superior stability, improve electrical breakdown resistance, and high volume resistivity

Inactive Publication Date: 2019-01-15
CHANGZHOU SVECK PHOTOVOLTAIC NEW MATERIAL
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the increasing use of solar cell components, the diversity of colors required for solar cell components in buildings and the introduction of double-glass components, ordinary white translucent EVA film-encapsulated solar components have been unable to meet the needs of the market.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A black EVA material used for solar cell module encapsulation, its composition in parts by mass is as follows: 0.8 parts of insulating carbon black mixture, 92 parts of modified EVA, 12 parts of polyolefin elastomer POE, 1.2 parts of crosslinking agent, 0.8 part of silane coupling agent , 0.12 parts of antioxidant, 0.12 parts of ultraviolet absorber;

[0023] Wherein, the insulating carbon black mixture is a mixture of activated silica and insulating carbon black, and the mass ratio thereof is 0.01:1.

[0024] Among them, the modified EVA adopts maleic anhydride graft modified EVA.

[0025] Among them, the cross-linking agent adopts cross-linking curing agent and auxiliary cross-linking agent. The cross-linking curing agent includes organic peroxides and azo compounds. Butyl ester, the azo compound adopts an aromatic azo compound, and the co-crosslinking agent includes trimethylolpropane trimethacrylate.

[0026] Wherein, the silane coupling agent is a mixture of viny...

Embodiment 2

[0030] A black EVA material used for solar cell module encapsulation, its composition in parts by mass is as follows: 1.1 parts of insulating carbon black mixture, 93 parts of modified EVA, 13 parts of polyolefin elastomer POE, 1.5 parts of crosslinking agent, 1.1 parts of silane coupling agent , 0.15 parts of antioxidant, 0.15 parts of ultraviolet absorber.

[0031] Wherein, the insulating carbon black mixture is a mixture of activated silica and insulating carbon black, and the mass ratio thereof is 0.012:1.

[0032] Among them, the modified EVA is a mixture of maleic anhydride graft modified EVA and SIS modified EVA, the mass ratio of which is 1:1.

[0033] Among them, the cross-linking agent adopts cross-linking curing agent and auxiliary cross-linking agent. The cross-linking curing agent includes organic peroxide and azo compound, and the organic peroxide is 2,5-dimethyl-2,5-di-tert-butyl A mixture of hexane peroxide and tert-butyl peroxy-2-ethylhexyl carbonate, the mas...

Embodiment 3

[0038] A black EVA material used for solar cell module encapsulation, its composition in parts by mass is as follows: 1.5 parts of insulating carbon black mixture, 94 parts of modified EVA, 15 parts of polyolefin elastomer POE, 2.4 parts of crosslinking agent, 1.2 parts of silane coupling agent , 0.15 parts of antioxidant, 0.15 parts of ultraviolet absorber.

[0039] Wherein, the insulating carbon black mixture is a mixture of activated silica and insulating carbon black, and the mass ratio thereof is 0.013:1.

[0040] Among them, the modified EVA is a mixture of maleic anhydride graft modified EVA and SIS modified EVA, the mass ratio of which is 1:3.

[0041]Among them, the cross-linking agent adopts cross-linking curing agent and auxiliary cross-linking agent, wherein the cross-linking curing agent includes organic peroxide and azo compound, and the organic peroxide is selected from 2,5-dimethyl-2,5-di-tert-butyl The mixture of hexane peroxide and tert-butyl peroxy-2-ethylh...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of solar packaging materials, in particular to a black EVA material for solar cell module packaging; the black EVA material comprises the following components in parts by mass: 0.8-4.5 parts of an insulating carbon black mixture, 92 to 96 parts of modified EVA, 12-28 parts of polyolefin elastomer POE, 1.2-4.5 parts of a cross-linking agent, 0.8-2.4 parts of a silane coupling agent, 0.12-0.36 part of an antioxidant, and 0.12-0.25 part of an ultraviolet light absorbent; the black EVA material has more excellent thermal conductivity, and due to the addition of carbon black into the black EVA material, the temperature difference of the whole film is small during the lamination heat curing process, so that the cross-linking is more complete, and thematerial distribution is more uniform. Since active silica is added into the carbon black, the particle size of the active silica is small, the black EVA material has large specific surface area, strong surface adsorption force, high surface energy, high chemical purity, good dispersion performance, high thermal resistance and electrical resistivity and other special properties, and has excellentstability, reinforcing property, thickening property and thixotropy, so that the distribution uniformity of the material is further improved.

Description

technical field [0001] The invention belongs to the technical field of solar energy encapsulation materials, in particular to a black EVA material used for encapsulation of solar battery modules. Background technique [0002] Solar energy is a kind of clean energy. It hardly produces any pollution when it is developed and utilized. In addition, its reserves are nearly infinite. It is an ideal alternative energy source for human beings. In order to make full and effective use of solar energy, people have invented a variety of solar materials. According to performance and application, it can be roughly divided into photoelectric conversion materials, photothermal conversion materials, photochemical energy conversion materials and photochromic materials controlled by light energy. Photoelectric and photothermal conversion materials are the most widely used in people's daily life and production process. [0003] Solar photoelectric conversion materials, that is, solar cells, a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/06C08L23/08C08L53/02C08K3/04C08K3/36C08K5/134H01L31/048
CPCC08L23/0853C08L51/06C08L2203/206H01L31/0481C08L23/0815C08K3/04C08K3/36C08K5/1345C08L53/02Y02E10/50
Inventor 吕松
Owner CHANGZHOU SVECK PHOTOVOLTAIC NEW MATERIAL