| 摘要 |
A fluororesin film usable as the outermost layer of a back sheet for a solar cell module, which is a dark type fluororesin film having a sufficient electric insulation property and weather resistance, and which is particularly excellent in thermal resistance; and a back sheet for a solar cell module employing such a film, which dark type fluororesin film, which is a fluororesin film contains an ethylene-tetrafluoroethylene copolymer as the main component and contains from 1.0 to 4.5 parts by mass of a carbon black having a pH of from 8 to 10 as measured according to JIS K6221 section 6.4.2 based on 100 parts by mass of the ethylene-tetrafluoroethylene copolymer. |
