Novel environment-friendly flame-retardant silicone sealant and preparation method thereof

The invention discloses a novel environment-friendly flame-retardant silicone sealant and a preparation method thereof. The novel environment-friendly flame-retardant silicone sealant comprises, by weight, 100 parts of alpha, omega-dihydroxy polymethylsiloxane, 1-50 parts of polymethylsiloxane, 5-150 parts of filler, 1-10 parts of phosphorous silicone flame retardant, 1-15 parts of crosslinking agent, 0.1-3 parts of catalyst and 0.5-4 parts of coupling agent. The dealcoholized flame-retardant silicone sealant is prepared by adopting a method of adding novel environment-friendly flame retardant, so that the problem that dealcoholized flame-retardant sealant products are low in flame retardance is solved, and the preparation method is simple; loss is low in the process of production, and the sealant is high in processing performance.