| 摘要 |
PROBLEM TO BE SOLVED: To prepare a protective sheet for a solar cell module superior in transparency, flame retardant property, weatherability and moldability. SOLUTION: This composition for the protective sheet is obtained by blending 100 pts.wt. polyorganosiloxane of 3000-20000 polymerization degree, in which more than 93mol% of the organic moiety bonded to silicon atoms are methyl groups and 0.01-2mol% are composed of vinyl groups, with 40-130 pts.wt. of powdered silica whose surface is treated with hexamethyldisilazane and diametere of the primary grain is in the range of 0.1-10nm and 0.05-15 pts.wt. of an organic peroxide. |
