FILM FOR BACKSIDE SEALING SHEET FOR SOLAR CELLS

摘要

Disclosed is a film for a backside sealing sheet for solar cells, which has excellent light resistance and partial discharge voltage that serves as an index for electrical insulation. Also disclosed are a protective sheet for solar cell backside sealing and a solar cell module using the protective sheet. The film for a backside sealing sheet for solar cells is characterized in that a resin layer, which contains an antistatic agent and a resin that is obtained by copolymerizing an acrylic polyol resin with an ultraviolet absorbent and a light stabilizer, is arranged on at least one surface of a base film, and that the amount of the antistatic agent contained in the resin layer is 1-30 parts by mass per 100 parts by mass of the resin that is obtained by copolymerizing an acrylic polyol resin with an ultraviolet absorbent and a light stabilizer. Consequently, the film for a backside sealing sheet for solar cells can achieve more excellent light resistance and partial discharge voltage that serves as an index for electrical insulation than conventional films.