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A kind of anti-aging high barrier solar panel back film and preparation method thereof

A solar cell, high-barrier technology, used in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of yellowing, embrittlement and aging of the back film, affecting the long-term power generation performance of modules, and achieve good heat resistance and enhanced heat resistance. durability, improved service life, and durable performance

Active Publication Date: 2017-05-17
GUANGDONG GUOLI SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The back film of the compound-adhesive module cannot withstand the long-term UV aging test after installation. Within a few years, the back film of the module will appear yellowing, embrittlement and aging, which will seriously affect the long-term power generation efficiency of the module.

Method used

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  • A kind of anti-aging high barrier solar panel back film and preparation method thereof

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preparation example Construction

[0040] A preparation method of anti-aging high barrier solar cell panel back film 1, it comprises the steps:

[0041] S100 Provide a base layer 30, and bond the anti-ultraviolet layer 20 on the outer surface of the base layer 30. The material composition of the anti-ultraviolet layer 20 is 10-15 parts by weight of polytrimethylene terephthalate, 40- 50 parts of polyimide, 8-10 parts of vinyl triisopropenyloxysilane, 5-8 parts of carboxymethyl cellulose, 6-10 parts of nano-cerium dioxide and 2-3 parts of antioxidant;

[0042] S200 bonding the bonding layer 40 on the inner surface of the base layer 30, the bonding layer 40 is made of polyurethane resin, diphenyldimethoxysilane, organic peroxide, polybutylene terephthalate , octadecyl acrylate, isocyanate curing agent and ethanol solvent;

[0043] S300 bonding the weather-resistant layer 10 to the outer surface of the UV-resistant layer 20, bonding the weather-resistant layer 10, the UV-resistant layer, the base layer 30 and the...

Embodiment 1

[0053] Technical solution of the present invention: an anti-aging high-barrier solar panel back film 1, including a four-layer structure from outside to inside, the first layer is a weather-resistant layer 10, the second layer is an anti-ultraviolet layer 20, and the third layer is a base layer 30. The fourth layer is an adhesive layer 40, the first layer and the second layer, the second layer and the third layer, and the third layer and the fourth layer are connected by glue.

[0054] The first layer is a weather-resistant layer 10 with a thickness of 56 μm and consists of the following components in parts by mass:

[0055] 34 parts polyimide

[0056] 13 parts of polyoxymethylene

[0057] Aluminum hexafluoro-2,4-pentanedione 6 parts

[0058] 8 parts of trifluoropropylmethylcyclotrisiloxane

[0059] Vinyltriethoxysilane 6 parts

[0060] Ethylene-vinyl acetate copolymer 7 parts

[0061] 6 parts polyvinyl alcohol

[0062] Nano silicon dioxide 4 parts

[0063] 3 parts isoc...

Embodiment 2

[0092] Technical solution of the present invention: an anti-aging high-barrier solar cell panel back film 1, including a four-layer structure from outside to inside, the first layer is a weather-resistant layer 10, the second layer is an anti-ultraviolet layer 20, and the third layer is a PET layer , the fourth layer is an adhesive layer 40, the first layer and the second layer, the second layer and the third layer, and the third layer and the fourth layer are connected by adhesive.

[0093] The first layer is the weather-resistant layer 10 with a thickness of 50-80 μm and consists of the following components in parts by mass:

[0094] Polyimide 40 parts

[0095] 18 parts of polyoxymethylene

[0096] Aluminum hexafluoro-2,4-pentanedione 6 parts

[0097] 12 parts of trifluoropropylmethylcyclotrisiloxane

[0098] Vinyltriethoxysilane 8 parts

[0099] Ethylene-vinyl acetate copolymer 8 parts

[0100] 5 parts polyvinyl alcohol

[0101] Nano silicon dioxide 4 parts

[0102] ...

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Abstract

The invention relates to an anti-aging high resistance solar cell panel back film and a preparation method thereof. The back film comprises a weather-resistant layer arranged at an outer side of the back film, an ultraviolet resistance layer bonded at an inner surface of the weather-resistant layer, a matrix layer which is a polyethylene glycol terephthalate layer bonded at an inner surface of the ultraviolet resistance layer, and a bonding layer which is bonded at an inner surface of the matrix layer and faces the solar cell panel, wherein the bonding layer comprises polyurethane resin, diphenyl dimethoxy silane, organic peroxide, polybutylene telephthalate, octadecyl acrylate, isocyanate curing agent and ethanol solvent. Through the multi-functional film layer, the solar cell panel back film has properties of anti-aging, weatherability, heat resistance and ultraviolet resistance, and service life and durable performance of the solar cell panel are improved.

Description

technical field [0001] The invention relates to the technical field of battery panel back film, in particular to an anti-aging high-barrier back film suitable for solar battery panels and a preparation method thereof. Background technique [0002] With the development of science and technology, human beings are paying more and more attention to environmental protection issues, and green and environmentally friendly energy has become the focus of development. As an inexhaustible source of energy, solar energy has been extensively developed and utilized in various countries. Among them, solar cells have already achieved large-scale production. The back film of solar cells is an important component of solar cells, which is used to resist damage to components caused by harsh environments and ensure the service life of components. [0003] The solar panel back film material should be more than two layers of composite materials, the inner layer mainly provides mechanical strengt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/049H01L31/18
CPCY02E10/50
Inventor 翁毅邱诗妍
Owner GUANGDONG GUOLI SCI & TECH CO LTD
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