Preparation method of efficient flame-retardant thermoplastic elastomer (TPE) material

The invention discloses a preparation method of a high-efficiency flame-retardant TPE (thermoplastic elastomer) material, which comprises the following steps: heating an internal mixer to 180-200 DEG C, adding a microencapsulated flame retardant and TPE into the internal mixer together, mixing to uniformly disperse the flame retardant in the TPE, pressing the mixed sample for 5-10 minutes at 180-200 DEG C by using a press vulcanizer, and carrying out extrusion molding to obtain the high-efficiency flame-retardant TPE material. The flame-retardant thermoplastic elastomer TPE material is prepared; the microencapsulated flame retardant is of a core-shell structure, a core layer structure is a flame retardant, and a shell layer structure is wrapped organic resin. According to the invention, the nano material is added into the phenolic prepolymer, and the surface of the piperazine pyrophosphate is coated with the nano material in situ, so that the char forming property and expandability of the piperazine pyrophosp