Efficient flame-retardant and high-strength high-temperature vulcanized silicone rubber foam material as well as preparation method and application thereof

The invention discloses an efficient flame-retardant and high-strength high-temperature vulcanized silicone rubber foam material as well as a preparation method and application thereof in preparation of large-thickness foam products. The high-temperature vulcanized silicone rubber foam material is prepared from the following raw materials in parts by mass: 100 parts of methyl vinyl silicone rubber, 20 to 80 parts of white carbon black, 2 to 10 parts of a structured control agent, 0.1 to 0.7 part of benzotriazole, 0.1 to 2.5 parts of transition metal two-dimensional sulfide, 0.05 to 0.5 part of a release agent, 1 to 10 parts of hydrogen-containing silicone oil, 1 to 10 parts of a foaming agent, 0.2 to 0.7 part of a catalyst, 0.01 to 0.06 part of an inhibitor and 0.5 to 2 parts of a foaming aid, the catalyst is a platinum catalyst, and the mass ratio of the platinum catalyst to the total mass of the benzotriazole and the inhibitor is 1: (0.4-1.2); the preparation method of the foaming aid comprises the followin