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Solar backplate with high water vapor permeability

A water vapor transmission rate and solar backsheet technology, which is applied in the field of solar backsheets, can solve problems such as low thermal expansion rate, product performance needs to be improved, poor water vapor transmission rate, etc., and achieve good tensile strength, thermal shrinkage rate and The effect of high water vapor transmission rate and simple structure

Inactive Publication Date: 2016-12-07
WUXI SUNOCEAN
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The solar backsheet is one of the accessories of the whole solar cell. It mainly plays the role of mechanical support and protection of the cell from the penetration of environmental factors. At present, the traditional solar backsheet has poor tensile strength, low thermal expansion rate, and low water vapor transmission rate. Poor, product performance needs to be improved

Method used

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  • Solar backplate with high water vapor permeability

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Embodiment Construction

[0013] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

[0014] Such as figure 1 As shown, a solar back sheet with a high water vapor transmission rate includes a PET substrate 3, one side of the PET substrate 3 is connected to a silicon oxide coating 5 through an adhesive layer 2, and the other side of the silicon oxide coating 5 is One side is connected to the weather-resistant layer 1, and the other end of the PET substrate 3 is connected to the weather-resistant adhesive layer 4 through the bonding layer 2; the silicon oxide coating 5 is any present embodiment in the silicon oxide coating or the silicon dioxide coating of. The thickness of the above-mentioned PET substrate 3 is 26-60 microns, and the above-mentioned adhesive layer 2 is made of polyolefin material, and the thickness of the polyolefin material is not greater than 60 microns.

[0015] The above description is an explanation o...

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Abstract

The invention relates to a solar backsheet with high moisture vapor transmission rate, comprising a PET base material, one side of the PET base material is connected to a silicon oxide coating through an adhesive layer, and the other side of the silicon oxide coating is One side is connected with a weather-resistant layer, and the other end of the PET substrate is connected with a weather-resistant adhesive layer through an adhesive layer; the silicon oxide coating is any one of a silicon oxide coating or a silicon dioxide coating. The invention has a simple structure, and by bonding a silicon oxide coating on one side of the PET base material, the solar backboard can have good tensile strength, high heat shrinkage rate and high water vapor transmission rate.

Description

technical field [0001] The invention relates to the field of solar modules, in particular to a solar backboard with high water vapor transmission rate. Background technique [0002] Solar energy, as a green and inexhaustible energy source, is undoubtedly the best choice to replace traditional thermal power generation. Since solar cells need to be exposed to the outdoors for a long time, the cells in photovoltaic modules need to be protected to prevent atmospheric pollution. The impact and overlooking of environmental factors such as water vapor, oxygen, and ultraviolet rays. The solar backsheet is one of the accessories of the whole solar cell. It mainly plays the role of mechanical support and protection of the cell from the penetration of environmental factors. At present, the traditional solar backsheet has poor tensile strength, low thermal expansion rate, and low water vapor transmission rate. Poor, product performance needs to be improved. Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): B32B27/36B32B27/06B32B33/00H01L31/048H01L31/049
CPCY02E10/50B32B27/36B32B27/06B32B33/00B32B2255/10B32B2255/20B32B2307/54B32B2307/724B32B2307/726B32B2307/734B32B2457/12H01L31/0481H01L31/049
Inventor 黄新东丁峰
Owner WUXI SUNOCEAN
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