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Solar cell fluorinated coating composition, fluorinated multilayer film, and solar cell comprising same

A technology of fluorine-based polymers and compositions, applied in coatings, circuits, photovoltaic power generation, etc., can solve the problems of yellowing solar cell module output, chemical resistance and weather resistance reduction, etc., and achieve improved adhesion , Improving chemical resistance, improving the effect of reflective properties

Inactive Publication Date: 2016-08-03
KOREA RES INST OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, the above-mentioned single-layer stretched polyvinylidene fluoride film contains a considerable amount of non-fluorine-based adhesive, so there is still a problem that, in the case of being exposed to the external environment for more than 20 years, it will be damaged due to ultraviolet rays. Chemical resistance and weather resistance are drastically reduced due to the deterioration of the adhesive, and the output of the solar cell module is reduced due to yellowing

Method used

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  • Solar cell fluorinated coating composition, fluorinated multilayer film, and solar cell comprising same
  • Solar cell fluorinated coating composition, fluorinated multilayer film, and solar cell comprising same
  • Solar cell fluorinated coating composition, fluorinated multilayer film, and solar cell comprising same

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preparation example Construction

[0099] The preparation method of the fluorine-based multilayer film of an embodiment of the present invention may include:

[0100] A step of preparing a fluorine-based coating composition comprising a fluorine-based polymer, a polymer binder and an organic solvent;

[0101] A step of coating the above-mentioned fluorine-based coating composition on one or both sides of the substrate film, and curing to form a primer layer;

[0102] A step of preparing a second composition comprising a fluorine-based polymer, a white pigment, and an organic solvent; and

[0103] A step of coating the above-mentioned second composition on the top of the above-mentioned primer layer, and curing to form a weather-resistant coating.

[0104] In the step of preparing the above-mentioned fluorine-based coating composition and the second composition, it can be prepared by a usual mixing method. The above-mentioned mixing method is not particularly limited, as long as the physical and chemical prope...

preparation example 1

[0132] Preparation of Polymer Binder Using Alkoxysilyl Compounds(1)

[0133] As shown in the following Table 1, 2.85 g of methyl methacrylate (MMA, Samcheon Chemical, 99%), 0.15 g of 3-methacryloylpropyltrimethoxysilane were added to a 4-port reactor. (SZ-6030, Dow Corning (DowCorning) company), 0.02g of 2,2'-azobis (4-methoxy-2,4-dimethylvaleronitrile) (V-70, Wako Pure Chemicals (Wakopurechemicals) ) company), 12 g of isophorone (Sigma-Aldrich (Sigma-Aldrich) company), and polymerized at 60° C. for 6 hours to prepare a polymer binder (1).

preparation example 2-4

[0135] Preparation of Polymer Binder Using Alkoxysilyl Compounds(1)

[0136] As shown in the following Table 1, except that the contents of methyl methacrylate (MMA) and 3-methacryloylpropyltrimethoxysilane were changed, the preparation was carried out in the same manner as in Preparation Example 1, thereby preparing a polymer Adhesives (1).

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Abstract

The present invention relates to a solar cell backsheet and a solar cell comprising the same and, more specifically, to: a solar cell backsheet having, on a base film, a coating layer of a double layer structure composed of a primer layer comprising a fluorinated polymer and a non-fluorinated binder and a weather-resistant coating layer comprising a fluorinated polymer, and thus has excellent adhesion with the base film and improved weather-resistant properties; and a solar cell comprising the same.

Description

technical field [0001] The present invention relates to a fluorine-based coating composition for solar cells, a fluorine-based multilayer film, and a solar cell comprising the fluorine-based multilayer film, and more particularly, to a coating composition formed of a primer layer and a fluorine-based polymer. A fluorine-based multilayer film with a double-layer structure composed of a weather-resistant coating, which has excellent adhesion to the substrate film, and a fluorine-based coating composition for solar cells that has improved weather resistance and reflectance to visible light, and a fluorine-based multilayer film A layer film and a solar cell including the same, wherein the primer layer is formed of a fluorine-based coating composition comprising a fluorine-based polymer and a polymer binder. Background technique [0002] Generally speaking, a solar cell module is a semiconductor element that uses the photoelectric effect to convert light energy into electrical en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D183/02C09D7/12C09D127/12H01L31/048C08J7/043
CPCY02E10/50C08J7/042C08J2427/12C08J2433/12C09D127/16H01L31/049C08J7/043C08F220/14C08L33/12C08L43/04C08F230/085C09D7/40
Inventor 河钟郁李寿福朴仁濬孙银晧李光远陆信洪
Owner KOREA RES INST OF CHEM TECH
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