Flame retarding room temperature vulcanized silicone rubber composite material and preparing method thereof

The invention discloses a flame retarding room temperature vulcanized silicone rubber composite material and a preparing method thereof. The composite material comprises, by weight, 90 parts of two-component rubber matrix, 1-9 parts of hepta-methyl phenyl silicone triol silsesquioxane flame retardant and 0.8-1.2 parts of curing agent. The preparing method of the composite material includes the steps that a formula dosage matrix and the flame retardant are mixed evenly, then the curing agent of the formula dosage is added, even mixing is conducted, then the mixture is poured into a mold, and room temperature curing is conducted. Flame retarding, smoke inhibiting, the mechanical property and the compatible performance of all the components of the flame retarding room temperature vulcanized silicone rubber composite material are greatly improved compared with those of room temperature vulcanized silicon rubber without hepta-methyl phenyl silicone triol silsesquioxane flame retardant, a wide application prospect is achieved, the preparing technology is simple, the performance is stable and reliable, the large-scale application is easily achieved, and the flame retarding room temperature vulcanized silicone rubber composite material is extremely high in industrial application value.