High-dripping-resistance flame-retardant thermoplastic polyester elastomer composite material and preparation method thereof

The invention discloses a high-dripping-resistance flame-retardant thermoplastic polyester elastomer composite material and a preparation method thereof, and belongs to the technical field of high polymer materials. The composite material is prepared from the following components in parts by weight: 40 to 110 parts of thermoplastic polyester elastomer (TPEE) and 5 to 60 parts of methyl butyl phosphinic acid aluminum salt combined flame retardant, wherein the methyl butyl phosphinic acid aluminum salt combined flame retardant is prepared from the following components in parts by weight: 20 to 100 parts of methyl butyl phosphinic acid aluminum salt, 2 to 40 parts of phenolphthalein and 2 to 40 parts of zinc stearate. The methyl butyl phosphinic acid aluminum salt combined flame retardant provided by the invention not only can improve the flame retardant property of the thermoplastic polyester elastomer, but also can enhance the dripping resistance of the thermoplastic polyester elastomer. The high-dripping-resi