▎ 摘　　要

The hybrid nanoparticles composed of reduced graphene oxide and MoS2 nanosheets with active amino groups (NH2-rGO/MoS2) were fabricated by a facile and effective method. Then the bismaleimide (BMI) composites filled with the as-prepared NH2-rGO/MoS2 nanoparticles were obtained by a casting method. The microstructure and morphology of NH2-rGO/MoS2 nanoparticles, the mechanical properties, thermal property and tribological properties of NH2-rGO/MoS2/BMI composites were investigated. The results show that the interlaminar distance of MoS2 nanosheets in the hybrid nanoparticles is 0.71 nm, which is much larger than that of bulk MoS2 (0.62 nm); and the NH2-rGO/MoS2/BMI composites possess better friction-reducing and anti-wear performances (the friction coefficient and volume wear rate are about 0.2 and 2.9 x 10(-6) mm(3)/(N center dot m), respectively) compared to the neat BMI resin. This is mainly attributed to the enhanced toughness of the nanoparticles, good interfacial adhesion between NH2-rGO/MoS2 and BMI matrix as well as the synergistic effect between rGO and MoS2 nanosheets. (C) 2016 Published by Elsevier Ltd.