| 摘要 |
PROBLEM TO BE SOLVED: To provide: a back surface protective film for a solar cell, excellent in low heat-storing properties, heat resistance, flexibility, adhesive properties with a member including an ethylene-vinyl acetate copolymer, durability against a cooling/heating cycle, weather resistance and productivity; and a solar cell module.SOLUTION: A back surface protective film 1 for a solar cell comprises a laminate which includes an infrared ray-transmitting coloring resin layer 11, a white coloring resin layer 12, and a weather resistant improvement layer 13, and in which the infrared ray-transmitting coloring resin layer and the weather resistant improvement layer are formed as the outermost surface layer of each surface. The infrared ray-transmitting coloring resin layer 11 contains an infrared ray-transmitting coloring agent and a rubber-containing aromatic vinyl resin having the maximum temperature of glass transition temperatures as measured in accordance with JIS K 7121 of 90-120°C, and has a thickness of 10-300 μm. The white coloring resin layer 12 contains a crystalline resin and a white coloring agent, and has a thickness of 10-400 μm. The weather resistant improvement layer 13 contains a fluororesin and has a thickness of 10-300 μm. |
