A kind of polyolefin modified solar battery back sheet and its processing technology
A solar cell and polyolefin technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of low adhesion of solar cell backplanes, high surface energy of fluorine materials, complex production processes, etc., to avoid low adhesion, Good adhesion and low cost effect
Active Publication Date: 2016-02-03
江苏中来新材科技有限公司
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Problems solved by technology
The solar battery backsheet material of the above-mentioned published patent uses fluorine material, which has the following disadvantages: the surface energy of the fluorine material is high, the surface is hydrophobic, and the bonding performance is poor, so that the adhesion between the layers of the solar battery backsheet is low; the fluorine material As a backplane layer, processing is difficult and the production process is complicated
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[0024] see figure 1 , an embodiment of a polyolefin modified solar battery back sheet given in the present invention, including a base layer 1 formed by blending and modifying PET and PP, and a cast polyolefin resin formed on the surface of the base layer 1 and The humidity and heat aging resistance layer 2 formed after curing at room temperature. The base layer 1 of the present invention is a base layer formed by blending and modifying PET and PP, wherein PET is polyethylene terephthalate and PP is polypropylene. By blending and modifying the two, the two problems can be overcome. In order to further optimize its performance, PET obtained after blending and modification is used as the base layer, which has the outstanding characteristics of heat and humidity resistance, tear resistance, hydrolysis resistance, electrical insulation, stable size, and easy processing, which can fully meet Demand for solar cell backsheets. In the present invention, a moisture-heat aging-resista...
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Abstract
A polyolefin modified solar battery backplane comprises one hygrothermal-aging-resistant layer, a base layer and the other hygrothermal-aging-resistant layer. The base layer is made of hygrothermal-aging-resistant polyethylene terephthalate (PET) formed through blending modification. The range of the thickness of the base layer is 50-350 micrometers. The hygrothermal-aging-resistant layers are made of polyolefin materials formed by filling modification. The range of the thickness of each hygrothermal-aging-resistant layer is 10-250 micrometers. The polyolefin modified solar battery backplane has the advantages of being hygrothermal-aging-resistant, tear-resistant, hydrolysis-resistant, weather-proof, impact-resistant, stable in size and easy to process, and having a function of electrical insulation.
Description
technical field [0001] The invention relates to the field of solar cell backboards, in particular to a polyolefin modified solar cell backboard. At the same time, it also relates to a processing technology of the solar battery back plate. Background technique [0002] The solar cell backsheet is an integral part of the solar cell. The backsheet is the protective material on the back of the cell, used to support and fix the solar cell, and protect the solar cell components. Since the battery backsheet is located on the outermost layer of the back of the solar cell module, it is easy to become brittle in long-term outdoor use, and cannot effectively protect the solar cell module for long-term use. Therefore, the backsheet is required to have good environmental erosion resistance, moisture and heat aging resistance, high and low temperature resistance, hydrolysis resistance, corrosion resistance, and the ability to continuously resist light irradiation. [0003] CN101177514A ...
Claims
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IPC IPC(8): H01L31/049H01L31/18B32B27/08B32B27/36
CPCY02E10/50
Inventor 林建伟夏文进张育政王志
Owner 江苏中来新材科技有限公司