| 摘要 |
This solar cell sealing material contains an ethylene-alpha-olefin copolymer, an organic peroxide and an ultraviolet absorbent, and the ultraviolet absorbent is a benzotriazole-based ultraviolet absorbent that is represented by general formula (1) or (2). (In general formula (1), R1 represents a hydrogen atom or an alkyl group having 1-6 carbon atoms; and R2-R4 may be the same or different, and each represents a hydrogen atom, an alkyl group having 1-20 carbon atoms, a hydroxyl group, an alkoxy group having 1-22 carbon atoms or an alkyloxycarbonyl group having 1-22 carbon atoms.) (In general formula (2), R1 represents the above-mentioned substituent; and R5-R8 may be the same or different, and each represents a hydrogen atom, an alkyl group having 1-20 carbon atoms, a hydroxyl group, an alkoxy group having 1-22 carbon atoms or an alkyloxycarbonyl group having 1-22 carbon atoms.) |
