A kind of high weather resistance solar battery back plate and preparation method thereof

Abstract

The invention discloses a high-weather-resistance solar cell back plate, successively comprising a first weather resistance layer, an insulation and blocking layer, and a second weather resistance layer from inside to outside, wherein the first weather resistance layer is bonded with the insulation and blocking layer through an adhesion layer, the insulation and blocking layer is bonded with the second weather resistance layer through an adhesion layer; both the first weather resistance layer and the second weather resistance layer are silicon-fluorene fluorine-containing resin material layers; the insulation and blocking layer is a PET (PolyEthylene Terephthalate) layer; the adhesion layer is a blend layer of EVA (Ethylene-Vinyl Acetate copolymer) and JD919 amino tetra-functional epoxy resin. A manufacturing method of the high-weather-resistance solar cell back plate comprises the steps of plasma corona treatment, overlapping, laminating, and curing. The high-weather-resistance solarcell back plate disclosed by the invention has excellent weather resistance, electric insulation property, oxidation resistance, moisture resistance, hydrolysis resistance for preventing hydrolysis ofan adhesive for a long time, and barrier property.

Description

technical field [0001] The invention belongs to the technical field of solar cell manufacturing, and relates to a solar cell assembly packaging material, in particular to a highly weather-resistant solar cell backboard and a preparation method thereof. Background technique [0002] In recent years, with the rapid economic development and the advancement of global industrialization, energy and environmental issues are still important factors restricting social progress. In order to solve these problems, clean and renewable energy installations have attracted extensive attention in the industry. Solar cells are one of many clean and renewable energy devices. They are devices that directly convert light energy into electrical energy through the photoelectric effect or photochemical effect. Due to their excellent photoelectric conversion efficiency, long cycle life and clean and The characteristics of environmental pollution are widely used in military, aerospace, industry, com...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the defects in the prior art, the present invention provides a high weather resistance solar battery back sheet and its preparation method, the preparation method is simple and easy to implement, the raw materials are easy to obtain, the price is low, and the requirements for equipment and reaction conditions are not high. It is suitable for large-scale production; the highly weather-resistant solar cell back sheet prepared by the preparation method overcomes the traditional solar cell back sheet in the prior art which is expensive, has poor interlayer peel strength, is easy to fall off, has low electrical insulation, and is difficult to bond. Poor weather resistance, easy embrittlement, tearing, unable to meet the technical problems required by high-end products, has excellent weather resistance, electrical insulation properties, oxidation resistance, moisture resistance, long-term prevention of hydrolysis of adhesives and barrier properties

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