High-temperature-resistant organic silica gel and preparation method thereof

The invention discloses high-temperature-resistant organosilicone gel and a preparation method thereof, the high-temperature-resistant organosilicone gel comprises a component A and a component B, the mass ratio of the component A to the component B is 1: 1, and the molar ratio of a silicon hydrogen group in end hydrogen-containing silicone oil contained in the component A to vinyl in an organosilicone gel system is 0.1-0.85; the molar ratio of a silicon hydrogen group in the cross-linked hydrogen silicone oil to a vinyl group in the organic silicon gel system is 0.05 to 0.5; the molar ratio of the sum of silicon and hydrogen groups in the end hydrogen-containing silicone oil and the cross-linked hydrogen silicone oil to vinyl in the organic silicon gel system is less than 1; and the component B comprises vinyl-terminated silicone oil and a temperature-resistant auxiliary agent. The temperature-resistant auxiliary agent has good compatibility with the organic silica gel, and the temperature resistance of the