High-toughness conductive flame-retardant PBT (polybutylene terephthalate) composite material as well as preparation method and application thereof

The invention discloses a high-toughness conductive flame-retardant PBT (polybutylene terephthalate) composite material as well as a preparation method and application thereof. The PBT composite material comprises the following raw material components: PBT, a hyperbranched polymer, a flame retardant, nylon trioxide, a compatilizer, a flexibilizer, an auxiliary agent and a conductive agent, the hyperbranched polymer has a structure as shown in the following formula: # imgabs0 #, wherein R is a group containing more than two shin-based structures; n is 5-50, and m is 10-60. The high-toughness conductive flame-retardant PBT composite material disclosed by the invention has excellent toughness and flame retardance; meanwhile, the preparation method of the PBT composite material is simple, high in operability, easy to implement and beneficial to industrial large-scale production, and has a huge application prospect. 本发明公开了一种高韧性导电阻燃PBT复合材料及其制备方法与应用。所述PBT复合材料的原料包括如下组分：PBT、超支化聚合物、阻燃剂、三氧化二锦、相容剂、增韧剂、助剂及导电剂；所述超支化聚合物具有如下