High-damp-heat-aging-resistance pe film for solar cell panel and preparation method of pe film

Abstract

The invention relates to the field of preparation of pe films, and particularly discloses a high-damp-heat-aging-resistance pe film for a solar cell panel and a preparation method of the pe film. The high-damp-heat-aging-resistance pe film for the solar cell panel comprises a base film layer, wherein the base film layer comprises 100 parts of linear low-density polyethylene, 8 to 10 parts of polyvinyl pyrrolidone, 8 to 12 parts of anti-aging master batch, 3 to 5 parts of an ethylene-vinyl acetate copolymer, and 4 to 8 parts of enhanced master batch. The preparation method comprises the steps: S1, mixing and granulating; S2, melting and co-extruding; S3, film blowing and film lifting; and S4, traction electric corona rolling. The anti-aging master batch adopted by the invention is formed by compounding the antioxidant and a light stabilizer, and the antioxidant and the light stabilizer cooperate with each other, so that free radicals generated by the substrate film layer under the direct initiation action of heating and oxygen can be effectively relieved, and the occurrence of aging is slowed down.

Description

technical field [0001] The application relates to the field of preparation of PE film, more specifically, it relates to a PE film with high humidity and heat aging resistance for solar panels and a preparation method thereof. Background technique [0002] The solar cell backsheet is an important part of the solar photovoltaic cell structure. It plays an insulating and protective role for the solar photovoltaic cell. It needs to have good aging resistance, heat and humidity resistance, electrical insulation resistance, water vapor barrier and dimensional stability. [0003] There are many kinds of thin film materials for solar cell backsheets on the market. The early solar cell backsheet structure is mainly double-layer fluorine film structure, but the production cost is relatively high. In recent years, the use of cheap and easy-to-obtain polyethylene film to replace expensive polyvinyl fluoride film is one of the widely used manufacturing methods. [0004] In view of the a...

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that the currently commonly used method of modifying the production of PE film has the problems of low adhesive strength, poor aging resistance and weather resistance under high temperature and high humidity conditions.

Images