Fluoride thin film backplane with light reflection function

Abstract

The invention discloses a fluoride thin film backplane with light reflection function, belonging to the technical field of a backplane. The backplane is provided with a PU (Polyurethane) pouring layer, a light reflection layer, a PET (polyethylene terephthalate) layer, an adhesive layer and a high-fluoride combined crystal thin film layer from top to bottom in sequence; the PET layer is connected with the PU pouring layer through the light reflection layer; the PET layer is connected with the high-fluoride combined crystal thin film layer by thermal fusion of the adhesive layer; and the fluoride content in the high-fluoride combined crystal thin film layer is 76%. According to the fluoride thin film backplane with the light reflection function, the backplane is composed of the PU pouring layer, the light reflection layer, the PET layer, the adhesive layer and the high-fluoride combined crystal thin film layer; wherein the backplane is strong in adhesive firmness, good in light reflection performance and short in time for preparation technology; in addition, the fire resistance, the weather resistance, the reliability and waterproofness of the backplane are improved; the energy consumption is reduced; the electricity generating efficiency of photovoltaic modules is improved by more than 1%; the fire resistance is improved from HB level to be V2 level; and the peel strength is improved from 40 N / cm to be 60-110 N / cm.

Description

technical field [0001] The invention belongs to the technical field of back plates, and in particular relates to a fluorine film back plate with light reflection function, good flame retardancy and high power generation efficiency of photovoltaic modules. Background technique [0002] Most of the currently used backplanes are made of EVA and PE materials at 145°C, poured and packaged by hot pressing for 15 minutes, so the chips are easily damaged, consume a lot of energy, and the production efficiency is low, easy to fluctuate, power generation efficiency is low, and there is no light. Reflective function, and the service life is 8 years. Contents of the invention [0003] In view of the above-mentioned problems in the prior art, the purpose of the present invention is to provide a fluorine thin film backsheet with light reflection function, which has good flame retardancy and high power generation efficiency of photovoltaic modules. [0004] The fluorine thin film backbo...

AI Technical Summary

Problems solved by technology

[0002] Most of the currently used backplanes are made of EVA and PE materials at 145°C, poured and packaged by hot pressing for 15 minutes, so the chips are easily damaged, consume a lot of energy, and the production efficiency is low, easy to fluctuate, power generation efficiency is low, and there is no light. Reflective function, and the service life is 8 years

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