Organosilicon foaming pouring sealant and preparation method thereof

The invention discloses an organosilicon foaming pouring sealant and a preparation method thereof, belonging to the technical field of pouring materials. The pouring sealant comprises a component A and a component B. The component A comprises the following components in parts by weight: 50-80 parts of vinyl polysiloxane, 1-5 parts of alpha,omega-hydroxyl-terminated liquid silicone rubber, 40-60 parts of an inorganic flame retardant, 1.0-10.0 parts of an auxiliary agent, 0.1-0.5 part of an anti-settling agent and 0.5-1.0 part of a platinum catalyst. The component B is prepared from the following components in parts by weight: 50 to 80 parts of alpha,omega-hydroxyl-terminated liquid silicone rubber, 3 to 5 parts of hydrogen-containing silicone oil, 40 to 60 parts of an inorganic flame retardant, 1.0 to 10.0 parts of an auxiliary agent, 0.5 to 1.0 part of carbon black, 0.5 to 1.0 part of an anti-settling agent and 0.01 to 0.02 part of a polymerization inhibitor. The organosilicon foaming pouring sealant has the