The invention relates to the technical field of polyphenylene sulfide, and discloses a preparation method of a high-temperature-resistant high-thermal-conductivity PPS composite material. 65‑80 parts by weight of polyphenylene sulfide and 20‑35 parts by weight of thioether polyarylene ether nitrile grafted graphene are added into a twin-screw extruder, melt-blended and pelletized to obtain the high-temperature-resistant high-thermal-conductivity PPS composite material. After the surface of graphene is grafted and coated with thioether polyarylene ether nitrile molecular chains, it has better dispersibility and higher compatibility with polyphenylene sulfide, and is uniformly dispersed in the polyarylene ether nitrile‑polyphenylene sulfide alloy composite material, playing a better reinforcing role, improving the tensile strength, flexural strength, thermal weight loss temperature and thermal conductivity of the composite material, and showing higher mechanical properties, high-temperature resistance and thermal conductivity. Moreover, it shows a high comparative tracking index CTI value and has good anti-leakage performance.
Area Code: CN
Application Number: CN202411575056.X
