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Organosilicon coating for solar cell backsheet and preparation method thereof

A technology of organic silicon coating and solar cells, which is applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of high film toughness, general moisture resistance, and easy hydrolysis, so as to improve moisture resistance and prevent delamination. Yellow, the effect of preventing hydrolysis reaction

Active Publication Date: 2016-08-24
江苏金旸太阳能电力科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the coating film of this polymer has high toughness, is easy to be hydrolyzed, and the moisture resistance performance is average.

Method used

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  • Organosilicon coating for solar cell backsheet and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The organosilicon coating used for solar battery backplanes comprises the following components in parts by weight: 8 parts of alloying elements, 60 parts of organosilicon, 30 parts of sodium bicarbonate, 25 parts of 3-chloropropyne, and 60 parts of polyurethane acrylate , 70 parts of stabilizer, 25 parts of surfactant.

[0026] The alloying elements are copper, tin, lead, aluminum and manganese.

[0027] Silicones are silicone resins.

[0028] The stabilizer is isooctyltin dimercaptoacetate, di-n-octyltin dimercaptoacetate, isooctyltin dimercaptoacetate, and di-n-butyltin dilaurate with a mass ratio of 1:2:2.

[0029] The surfactant is alkylphenol polyoxyethylene ether, fatty acid polyoxyethylene ester, and ethoxylated fatty acid methyl ester with a mass ratio of 1:1:10.

[0030] The preparation method of the above-mentioned organosilicon coating for the solar battery back plate comprises the following steps:

[0031] (1) Mix alloying elements, silicone, sodium bicar...

Embodiment 2

[0036] The organosilicon coating used for solar battery backplanes comprises the following components in parts by weight: 6 parts of alloying elements, 40 parts of organosilicon, 20 parts of sodium bicarbonate, 20 parts of 3-chloropropyne, and 40 parts of polyurethane acrylate , 50 parts of stabilizer, 20 parts of surfactant.

[0037] The alloying elements are aluminum, manganese, chromium and molybdenum.

[0038] Silicone is methyl phenyl silicone oil, methyl chlorophenyl silicone oil, methyl trifluoropropyl silicone oil, methyl vinyl silicone oil, methyl hydroxy silicone oil, ethyl hydrogen silicone oil, Hydroxyl hydrogen silicone oil.

[0039] The stabilizer is isooctyltin dimercaptoacetate, di-n-octyltin dimercaptoacetate, isooctyltin dimercaptoacetate, di-n-butyltin dilaurate, and di-n-octyltin dilaurate with a mass ratio of 8:1:2.

[0040] The surfactant is alkylphenol polyoxyethylene ether, fatty acid polyoxyethylene ester, and ethoxylated fatty acid methyl ester with...

Embodiment 3

[0047] A silicone coating for a solar battery backplane, comprising the following components in parts by weight: 10 parts of alloying elements, 80 parts of organic silicon, 40 parts of sodium bicarbonate, 30 parts of 3-chloropropyne, and 80 parts of polyurethane acrylate , 90 parts of stabilizer, 30 parts of surfactant.

[0048] The alloying elements are manganese, chromium, molybdenum and nickel.

[0049] The silicone is methyltrifluoropropyl silicone oil.

[0050] The stabilizer is di-n-octyltin dilaurate.

[0051] The surfactant is polyoxyethylene fatty acid ester.

[0052] The preparation method of the above-mentioned organosilicon coating for the solar battery back plate comprises the following steps:

[0053] (1) Mix alloying elements, silicone, sodium bicarbonate, 3-chloropropyne, urethane acrylate, stabilizer, and surfactant evenly, heat to 800°C, melt-extrude, and granulate;

[0054] (2) Add sodium bicarbonate and mix well;

[0055] (3) Stretch into film.

[005...

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Abstract

The invention discloses a silicone coating for a solar cell backboard and a preparation method thereof. The silicone coating for a solar cell backboard comprises, by weight, 6 to 10 parts of alloy elements, 40 to 80 parts of silicone, 20 to 40 parts of sodium bicarbonate, 20 to 30 parts of 3-propargly chloride, 40 to 80 parts of polyurethane acrylate, 50 to 90 parts of a stabilizer, and 20 to 30 parts of a surface active agent. The preparation method comprises steps: the alloy elements, the silicone, the sodium bicarbonate, the 3-propargly chloride, the polyurethane acrylate, the stabilizer and the surface active agent are mixed uniformly; heating is carried out till 600 to 800 DEG C, melting and extrusion, and granulation are carried out; sodium bicarbonate is added and uniform mixing is carried out; and a film is formed through stretching. Due to the existence of the alloy elements, water vapor permeability of the silicone coating is obviously reduced, the moisture-resisting performance is improved, a hydrolysis reaction is prevented, and delamination can be prevented from getting yellow.

Description

technical field [0001] The invention relates to the field of solar battery backplanes, in particular to an organic silicon coating used for solar battery backplanes and a preparation method thereof. Background technique [0002] The solar backsheet is located on the back of the solar panel, which protects and supports the battery sheet, and has reliable insulation, water resistance, and aging resistance. It generally has a three-layer structure, and the outer protective layer has good resistance to environmental erosion. [0003] The application number is 2010800677089, and the Chinese patent application titled "Coating composition for solar cell back sheet and solar cell back sheet" discloses a coating composition for solar cell back sheet, which contains: (a) vinyl ester resin or unsaturated poly 10 to 40% by mass of ester resin, 30 to 60% by mass of (b) vinyl monomer and / or (meth)acrylate monomer, 5 to 40% by mass of (c) modifier (wherein, the above-mentioned components ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/049H01L31/18
CPCH01L31/0216H01L31/18H01L31/186Y02E10/50Y02P70/50
Inventor 黄新东刘天人
Owner 江苏金旸太阳能电力科技股份有限公司