▎ 摘 要
Surface-functionalized reduced graphene oxide and MoS2 hybrid nanosheets (rGO/MoS2) were obtained with a poly-(cyclotriphosphazene-co-4,4'-diaminodiphenylmethane) (PZD) polymer coating by a onepot noncovalent method. The PZD/rGO/MoS2 hybrid nanoparticles were then chosen as fillers to improve the mechanical and tribological properties of bismaleimide (BMI) resin. The results showed that suitable addition of PZD/rGO/MoS2 could greatly enhance not only the mechanical and tribological properties but also the thermal stability. A low friction coefficient of 0.06 and volume wear rate of 1.80 x 10(-6) mm(3) (N m)(-1) with 0.4 wt% PZD/rGO/MoS2 were obtained. This is mainly attributed to the unique layered structure of PZD/rGO/MoS2 hybrid nanoparticles, the enhanced toughness of the composites, good interfacial adhesion and compatibility between PZD/rGO/MoS2 and the BMI matrix, as well as the synergistic effect between nanosheets of rGO and MoS2.