Method for preparing flame-retarding type modified plastic

The invention discloses a method for preparing flame-retarding type modified plastic. Aiming at the defects of existing modified plastic, the flame-retarding type modified plastic is prepared from calcium silicate, flame-retarded resinae, polylactic acid, asbestos fiber, antioxidant, xylogen, ferric oxide, starch cellulose, vinyl acetate, modifying agent, plasticizer, dispersing agent, penetrating agent, emulsifying agent and the like. The modified plastic made with the method is free of toxicity, harmless, high in weather fastness, high in stability, good in flame-retarding effect, low in halogen content, free of added flame retardant, capable of overcoming the defects of traditional frame-retarding plastic, and high in practical value. Furthermore, the preparing method is simple and high in industrial feasibility.