Simultaneously enhancing tribological and mechanical properties of epoxy composites using basalt fiber/reduced graphene oxide/paraffin wax

Epoxy composites with simultaneously enhanced tribological and mechanical properties filled with basalt belt/reduced graphene oxide/paraffin wax (EP/BF/RGO/PW) have been successfully prepared. Experimental results indicated that the mechanical property of the composites was reinforced by basalt belt, and the tribological property was greatly improved by reduced graphene oxide/paraffin wax at the same time. Thanks to the synergy of PW and RGO sheets, the optimized coefficient of friction and wear rate of the composite declined by 77.5% and 14.4% than pure EP under dry friction conditions of 60 N and 0.42 m s-1. In comparison to pure EP, the tensile strength and modulus of the optimized composite increased by 75.5% and 100% on account of the robust basalt fibers. Thus, the combination of basalt fiber and reduced graphene oxide/paraffin wax can readily realize the introduction of enhancer and oil-impregnation in EP, offering a promising approach for simultaneously improving the mechanical and tribological properties of epoxy.HighlightsA novel BF/RGO/PW 3D skeleton was developed via a facile hydrothermal method.The BF/RGO/PW can enhance the mechanical and tribological properties of EP.The basalt fibers account for the improvement in mechanical property.A reduction of 77.5% in COF and a decrease of 14.4% in wear rate were realized. Schematic diagram of the preparation of EP/BF/RGO/PW and corresponding SEM images.image