abstract |
A main object of the present invention is to provide a backsheet for photovoltaic module superior in hydrolysis resistance and thus in durability. To attain the object, the present invention provides a backsheet for photovoltaic module comprising a hydrolysis-resistant film and a resin film laminated on the hydrolysis-resistant film, characterized in that the hydrolysis-resistant film is made of a polyester resin having a carboxy end-group content of 15 equivalent/ton or less, and the resin film is made of a polypropylene resin. |