Photovoltaic silicone encapsulant and photovoltaic module

摘要

A silicone composition for photovoltaic encapsulation is prepared by blending (A) an organopolysiloxane containing at least two silicon-bonded alkenyl groups per molecule, (B) an organohydrogenpolysiloxane containing at least two silicon-bonded hydrogen atoms per molecule, and (C) an addition reaction catalyst such that the composition when cured may have a water vapor permeability of 80-160 g/m 2 ·day at 40° C and a thickness of 1 mm.