Thin film for solar cell backplane and preparation method of thin film

A technology for solar cells and backplanes, applied in circuits, electrical components, photovoltaic power generation, etc., can solve the problems of low EVA binding force, poor coating adhesion, and low coating hardness, so as to reduce surface tension, improve toughness, Improve the effect of high temperature resistance

Inactive Publication Date: 2017-11-24
HEFEI HUAGAI PHOTOVOLTIAC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing coatings for solar battery backplanes have poor adhesion, low coating hardness, easy scratches during use, poor thermal conductivity, low bonding force with EVA, and easy delamination due to aging

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of thin film for solar cell back sheet of the present embodiment, comprises the raw material of following weight part:

[0028] 11 parts of polyethylene adipate-1,4-butylene glycol ester diol, 18 parts of fluorine-containing resin, 8 parts of polybutylene terephthalate resin, 4 parts of polyether ether ketone, silicon dioxide 4 parts, 3 parts of titanium dioxide, 3 parts of decabromodiphenylethane, 7 parts of acetyl tributyl citrate, 0.1 part of ultraviolet absorber, 0.5 part of coupling agent, and 1 part of surfactant.

[0029] In this embodiment, the fluorine-containing resin is vinylidene fluoride, trifluoroethylene-vinyl ether copolymer, trifluoroethylene-vinyl ester copolymer, tetrafluoroethylene-vinyl ether copolymer, tetrafluoroethylene-vinyl ester A mixture of copolymers.

[0030] In this embodiment, the mesh number of silicon dioxide is 325 mesh, and the mesh number of titanium dioxide is 400 mesh.

[0031] In this embodiment, the ultraviolet absorber ...

Embodiment 2

[0042] A kind of thin film for solar cell back sheet of the present embodiment, comprises the raw material of following weight part:

[0043] 12 parts of polyethylene adipate-1,4-butylene glycol ester diol, 20 parts of fluorine-containing resin, 9 parts of polybutylene terephthalate resin, 5 parts of polyether ether ketone, silicon dioxide 5 parts, 4 parts of titanium dioxide, 4 parts of decabromodiphenylethane, 8 parts of acetyl tributyl citrate, 0.2 parts of ultraviolet absorber, 1 part of coupling agent, and 2 parts of surfactant.

[0044] In this embodiment, the fluorine-containing resin is vinylidene fluoride, trifluoroethylene-vinyl ether copolymer, trifluoroethylene-vinyl ester copolymer, tetrafluoroethylene-vinyl ether copolymer, tetrafluoroethylene-vinyl ester A mixture of copolymers.

[0045] In this embodiment, the mesh number of silicon dioxide is 325 mesh, and the mesh number of titanium dioxide is 400 mesh.

[0046] In this embodiment, the ultraviolet absorber ...

Embodiment 3

[0057] A kind of thin film for solar cell back sheet of the present embodiment, comprises the raw material of following weight part:

[0058] 13 parts of polyethylene adipate-1,4-butylene glycol ester diol, 22 parts of fluorine-containing resin, 10 parts of polybutylene terephthalate resin, 6 parts of polyether ether ketone, silicon dioxide 6 parts, 5 parts of titanium dioxide, 5 parts of decabromodiphenylethane, 9 parts of acetyl tributyl citrate, 0.3 parts of ultraviolet absorber, 1.5 parts of coupling agent, and 3 parts of surfactant.

[0059] In this embodiment, the fluorine-containing resin is vinylidene fluoride, trifluoroethylene-vinyl ether copolymer, trifluoroethylene-vinyl ester copolymer, tetrafluoroethylene-vinyl ether copolymer, tetrafluoroethylene-vinyl ester A mixture of copolymers.

[0060] In this embodiment, the mesh number of silicon dioxide is 325 mesh, and the mesh number of titanium dioxide is 400 mesh.

[0061] In this embodiment, the ultraviolet absor...

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Abstract

The invention discloses a thin film for a solar cell backplane, and belongs to the technical field of solar cell backplanes. The thin film comprises the following raw materials in parts by weight: 11-13 parts of polyethylene-1,4-buthylene adipate glycol, 18-22 parts of fluorine-containing resin, 8-10 parts of polybutylene terephthalate resin, 4-6 parts of polyetheretherketone, 4-6 parts of silicon dioxide, 3-5 parts of titanium dioxide, 3-5 parts of decabromodiphenyl ethane, 7-9 parts of acetyl tributyl citrate, 0.1-0.3 part of a UV absorbent, 0.5-1.5 parts of a coupling agent and 1-3 parts of a surfactant. The invention also discloses a preparation method of the thin film for the solar cell backplane. The thin film provided by the invention has advantages of simple preparation, good adhesion ability, relatively excellent high-temperature resistance and long service life.

Description

technical field [0001] The invention relates to the technical field of solar cell back plates, in particular to a thin film for solar cell back plates and a preparation method thereof. Background technique [0002] With the increasing scarcity of traditional energy sources, the development and utilization of new energy sources around the world has increasingly become the focus of worldwide attention. Global attention is conducive to the industrialization of energy conversion. The current commercial crystalline silicon solar cells mainly absorb and utilize visible light of 400-700nm, and basically do not absorb and utilize light in the ultraviolet band below 400nm, resulting in part of the energy of sunlight not being effectively utilized, which affects solar energy to a certain extent. The efficiency of the cell makes the efficiency of the current commercial crystalline silicon solar cells basically at 13-15%, and it is difficult to improve to a greater extent under the cur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L27/16C08L27/12C08L27/18C08L61/16C08K13/02C08K3/36C08K3/22C08K5/11C08K5/03H01L31/049
CPCY02E10/50C08L67/02C08J5/18C08J2327/12C08J2327/16C08J2327/18C08J2367/02C08J2467/02C08K2003/2241C08K2201/003C08L27/12C08L27/16C08L27/18C08L2201/02C08L2201/08C08L2203/16C08L2203/204C08L2205/025C08L2205/035H01L31/049C08L61/16C08K13/02C08K3/36C08K3/22C08K5/11C08K5/03
Inventor 王磊
Owner HEFEI HUAGAI PHOTOVOLTIAC TECH CO LTD
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