| 摘要 |
PROBLEM TO BE SOLVED: To provide: a backside protective sheet for solar battery modules which is small in the drop in adhesion strength between film layers even after being used under a high-temperature and high-humidity environment for a long period of time, and small in curl after being cut; a method for manufacturing such a backside protective sheet; and a method for manufacturing a module for solar batteries arranged by use thereof.SOLUTION: A backside protective sheet for solar battery modules comprises: a plastic film 16; a thermally adhesive resin film 11; and an adhesive agent 15 by which the plastic film and the thermally adhesive resin film are glued to each other. In the backside protective sheet, the adhesion strength between the film layers is 2 N/15 mm or more, and the curl is 10 mm or less. The adhesive agent 15 includes (a) polyester polyol, and to 100 pts.wt. of the polyester polyol, (b)5-30 pts.wt. of an epoxy resin, (c)5-30 pts.wt. of polycarbonate polyol, (d)1-10 pts.wt. of a carbodiimide compound, (e)10-30 pts.wt. of a polyisocyanate compound, and (f)0.002-1 pts.wt. of a curing-accelerating catalyst. |
