Anti-fog solar cell panel back film and preparation method thereof

A solar cell and board back film technology, which is applied in the field of solar back film, can solve the problems of light refractive index reduction, film layer erosion, and the influence of crystalline silicon photoelectric conversion efficiency, etc., to achieve reduced refraction effect, good anti-fog performance, and water resistance The effect of bead formation

Inactive Publication Date: 2015-03-04
WUXI SUNOCEAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The water mist formed on the back film, on the one hand, will cause erosion of the film layer; on the other hand, due to the heat dissipation of the water mist, the refractive index of light will decrease, and the photoelectric conversion efficiency of crystalline silicon will be affected.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] An anti-fog solar cell panel back film is a composite film with five layers of structure. From top to bottom, it is a weather-resistant layer, an adhesive layer, an intermediate layer, an adhesive layer and an easy-to-bond layer. The weather-resistant layer consists of the following parts by mass: Composition of each component: 35 parts of acrylic acid monomer, 10 parts of acrylic acid and ether copolymer, 1 part of butyl oleate, 1 part of calcium alkyl salicylate, 1 part of polyoxyethylene ether, 5 parts of rutile titanium dioxide, poly 6 parts of ester fiber, 3 parts of silane coupling agent and 15 parts of acetone.

[0025] A preparation method for an anti-fog solar panel back film, the preparation steps are as follows:

[0026] (1) Add acrylic acid monomer, acrylic acid and ether copolymer to the solvent and mix well;

[0027] (2) Add butyl oleate, polyoxyethylene ether, polyester fiber, calcium alkyl salicylate and titanium dioxide to the above liquid in sequence,...

Embodiment 2

[0032] An anti-fog solar cell panel back film is a composite film with five layers of structure. From top to bottom, it is a weather-resistant layer, an adhesive layer, an intermediate layer, an adhesive layer and an easy-to-bond layer. The weather-resistant layer consists of the following parts by mass: The composition of each component: 55 parts of acrylic acid monomer, 22 parts of acrylic acid and ether copolymer, 3 parts of butyl oleate, 3 parts of calcium alkyl salicylate, 2 parts of polyoxyethylene ether, 9 parts of rutile titanium dioxide, poly 12 parts of ester fiber, 8 parts of silane coupling agent and 26 parts of acetone.

[0033] A preparation method for an anti-fog solar panel back film, the preparation steps are as follows:

[0034] (1) Add acrylic acid monomer, acrylic acid and ether copolymer to the solvent and mix well;

[0035] (2) Add butyl oleate, polyoxyethylene ether, polyester fiber, calcium alkyl salicylate and titanium dioxide to the above liquid in s...

Embodiment 3

[0040] An anti-fog solar cell panel back film is a five-layer structure composite film, which is a weather-resistant layer, an adhesive layer, an intermediate layer, an adhesive layer and an easy-to-bond layer from top to bottom. The weather-resistant layer consists of the following parts by mass: The composition of each component: 38 parts of acrylic acid monomer, 12 parts of acrylic acid and ether copolymer, 2 parts of butyl oleate, 1.5 parts of calcium alkyl salicylate, 1 part of polyoxyethylene ether, 6 parts of rutile titanium dioxide, poly 7 parts of ester fiber, 4 parts of silane coupling agent and 16 parts of xylene.

[0041] A preparation method for an anti-fog solar panel back film, the preparation steps are as follows:

[0042] (1) Add acrylic acid monomer, acrylic acid and ether copolymer to the solvent and mix well;

[0043] (2) Add butyl oleate, polyoxyethylene ether, polyester fiber, calcium alkyl salicylate and titanium dioxide to the above liquid in sequence,...

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PUM

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Abstract

The invention discloses an anti-fog solar cell panel back film and a preparation method thereof, and relates to the technical field of solar cell panel back films. The back film is a five-layer structure composite film, and orderly comprises a weather-proof layer, an adhesive layer, a middle layer, an adhesive layer and an easy bonding layer from top to bottom, wherein the weather-proof layer is composed of the following components in parts by mass: 35-55 parts of acrylic monomer, 10-22 parts of acrylic and ether copolymer, 1-3 parts of butyl oleate, 1-3 parts of alkyl calcium salicylate, 1-2 parts of polyoxyethylene ether, 5-9 parts of titanium dioxide, 6-12 parts of polyester fiber, 3-8 parts of a coupling agent and 15-26 parts of solvent. The anti-fog solar cell panel back film disclosed by the invention is good in anti-fog performance, and capable of preventing water drops from forming, thereby reducing the influence of light ray refraction on the solar cell module; and meanwhile, the back film is excellent in weather-proof resistance and barrier property so as to effectively reduce the influence of water on the film layer and the module.

Description

technical field [0001] The invention belongs to the technical field of solar back film, and in particular relates to an anti-fog solar panel back film and a preparation method thereof. Background technique [0002] The back film of solar panels is one of the packaging materials for solar cell modules. Its main performance is to encapsulate crystalline silicon. In addition to excellent electrical insulation properties, weather resistance and barrier properties, it must also have anti-oxidation, moisture resistance, and good Excellent hydrolysis resistance and low haze. [0003] The water mist formed on the back film, on the one hand, will cause erosion of the film layer; on the other hand, due to the heat dissipation of the water mist, the refractive index of light will decrease, and the photoelectric conversion efficiency of crystalline silicon will be affected. Therefore, the solar cell panel back film generally needs to have the performance of automatic defogging, so as t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B32B37/12H01L31/048
CPCY02E10/50B32B27/06B32B7/12B32B33/00B32B37/10B32B37/12B32B37/153B32B2260/021B32B2260/046B32B2307/418B32B2307/50B32B2307/552B32B2457/12H01L31/0481
Inventor 黄新东刘天人
Owner WUXI SUNOCEAN
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