| 摘要 |
PROBLEM TO BE SOLVED: To provide free standing silicone resin films that have low tear strength, high brittleness, low glass transition temperature, and high coefficient of thermal expansion.SOLUTION: A method of preparing a reinforced silicone resin film comprises the steps of: impregnating a fiber reinforcement in a hydrosilylation-curable silicone composition comprising a silicone resin and a photoactivated hydrosilylation catalyst; and exposing the impregnated fiber reinforcement to radiation having a wavelength of from 150 to 800 nm at a dosage sufficient to cure the silicone resin; wherein the reinforced silicone resin film comprises from 10 to 99% (w/w) of the cured silicone resin and the film has a thickness of from 15 to 500 μm. A reinforced silicone resin film is prepared according to the method. |
