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Coating composition for solar cell backboards and solar cell backboards which are coated by coating composition

A technology of solar cells and compositions, applied in fire-resistant coatings, epoxy resin coatings, antifouling/underwater coatings, etc., can solve problems such as complex processes, and achieve the effects of good UV resistance, strong adhesion and high strength

Inactive Publication Date: 2017-10-10
NANTONG QIANGSHENG PHOTOVOLATIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Its process is too complicated

Method used

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  • Coating composition for solar cell backboards and solar cell backboards which are coated by coating composition
  • Coating composition for solar cell backboards and solar cell backboards which are coated by coating composition
  • Coating composition for solar cell backboards and solar cell backboards which are coated by coating composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] This embodiment relates to the preparation of a kind of coating composition for solar battery backplane:

[0041] 1. Ingredients according to the following formula:

[0042]

[0043] 2. Add 1 part of modified graphene and 30 parts of butyl acetate into an organic-resistant container, stir thoroughly for 30 minutes, and ultrasonicate for 5 minutes until no large pieces of visible graphene exist. Then add 30 parts of FEVE and 10 parts of titanium dioxide, stir for 30 minutes and then filter. Finally, 5 parts of isocyanate were added and after 10 minutes of stirring the desired coating was obtained. The preparation method of modified graphene is: disperse the graphite oxide of 5g in the 5L large beaker, disperse ultrasonically for 40min, then heat to 35 degrees and add the phosphate ester coupling agent solution of 15g solid content under mechanical stirring, add the acetic acid of 10ml, After the reverse precipitation, suction filtration and drying, repeated washing ...

Embodiment 2

[0049] This embodiment relates to the preparation of a kind of coating composition for solar battery backplane:

[0050] 1. Ingredients according to the following formula:

[0051]

[0052] 2. Add 0.1 parts of modified graphene and 30 parts of butyl acetate into an organic-resistant container, stir thoroughly for 30 minutes, and ultrasonicate for 5 minutes until no large pieces of visible graphene exist. Then add 30 parts of FEVE and 10 parts of titanium dioxide, stir for 30 minutes and then filter. Finally, 5 parts of isocyanate were added and after 10 minutes of stirring the desired coating was obtained. The preparation method of modified graphene is: disperse 5g of graphite oxide in a 5L large beaker, disperse ultrasonically for 40min, then heat to 35 degrees and add 15g of aluminate coupling agent solution with solid content under mechanical stirring, and add 10ml of Acetic acid, suction filtration drying after reverse precipitation, when repeated washing causes no mo...

Embodiment 3

[0055] This embodiment relates to the preparation of a kind of coating composition for solar battery backplane:

[0056] 1. Ingredients according to the following formula:

[0057]

[0058] 2. Add 0.01 parts of modified graphene and 30 parts of butyl acetate into an organic-resistant container, stir thoroughly for 30 minutes, and ultrasonicate for 5 minutes until no large pieces of visible graphene exist. Then add 30 parts of FEVE and 10 parts of titanium dioxide, stir for 30 minutes and then filter. Finally, 5 parts of isocyanate were added and after 10 minutes of stirring the desired coating was obtained. The preparation method of modified graphene: disperse 5g of graphite oxide in a 5L large beaker, disperse ultrasonically for 40min, then heat to 35 degrees and add 5g of octadecyl ammonium bromide solution with solid content under mechanical stirring, reverse precipitation After suction filtration and drying, when no modifying agent remains after repeated washing (each...

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Abstract

The invention provides a coating composition for solar cell backboards and the solar cell backboards which are coated by the coating composition. The coating composition comprises the following components: a graphene-like filler, resin, titanium dioxide, a solvent, a curing agent, and an auxiliary agent. A preparation method of the solar cell backboards which are coated by the coating composition comprises the following steps: a graphene-like filler and PET (polyethylene terephthalate) slices are uniformly mixed, and then mixing, extruding, rotation-drum sizing and biaxial stretching are successively performed, so that the solar cell backboards are obtained; surfaces of the solar cell backboards are treated to produce low-temperature plasma, and the coating composition coats the surfaces of the solar cell backboards; and drying solidification is performed, so that the solar cell backboards which are coated by the coating composition are obtained. According to the invention, by using graphene as an additive of the coating composition of the solar cell backboards, the solar cell backboards which are coated by the coating composition have the advantages of good mechanical performance, good ultraviolet resistance (aging resistance and weather resistance are enhanced), good heat conductivity (rapid heat dissipation, high-temperature resistance, high safety, improved cell efficiency and service life and the like) and the like, and an extensive application in all kinds of environmental climates.

Description

technical field [0001] The invention relates to a coating composition for a solar battery back plate and the solar battery back plate, belonging to the field of photovoltaic technology. Background technique [0002] Photovoltaic power generation is a new energy source. Through the photovoltaic effect, solar energy can be converted into electrical energy, which can be used as a green solution to replace traditional electrical energy. Photovoltaic cell modules are assembled from various semiconductor components, and are generally made of glass, battery silicon wafers, EVA, and backsheet materials by hot pressing, so they must be protected to reduce the impact of environmental effects such as moisture, oxygen, and ultraviolet rays. and destruction. Therefore, backsheets with excellent electrical insulation, interlayer bond strength, weather resistance, UV resistance, and moisture barrier properties play an important protective role in photovoltaic cell modules. [0003] Paten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/12C09D175/04C09D133/00C09D163/00C09D183/04C09D7/12C09D5/14C09D5/18C08J7/04H01L31/049C08L67/02
CPCC08J7/0427C08J2367/02C08J2427/12C08J2433/00C08J2463/00C08J2475/04C08J2483/04C08K3/04C08K3/22C08K9/04C08K2003/2241C09D5/14C09D5/18C09D127/12C09D133/00C09D163/00C09D175/04C09D183/04H01L31/049Y02E10/50
Inventor 拜永孝沙嫣沙晓林高文生
Owner NANTONG QIANGSHENG PHOTOVOLATIC TECH
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