VPF backplane for solar cell and processing process thereof
A solar cell and processing technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of easy aging of adhesives, accelerated PET decomposition, plasticization, etc., to improve overall performance, prolong service life, and overcome delamination. effect of the problem
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[0020] see figure 1 , an embodiment of a VPF back sheet for solar cells provided by the present invention, comprising a functional PET layer 1 and a conventional PET layer 2, the functional PET layer 1 and the conventional PET layer 2 are passed through a casting process Composite together. The conventional PET layer 2 in the present invention refers to a pure PET structure, which is the same as the existing mature products. The functional PET layer refers to a PET structure formed after blending and modification of conventional PET with anti-UV aging, heat and humidity resistance, and hydrolysis resistance. The functional PET layer contains an anti-ultraviolet aging agent and is resistant to ultraviolet and heat and humidity Aging performance. These modifiers can be completed by using mature products in the prior art. This functional PET layer is also a mature product, and the corresponding functional PET layer can be selected according to different performance requirements...
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