Study on mechanical properties of nano-Fe3O4 reinforced nitrile butadiene rubber

In this study, we used nano-Fe3O4 particles as modified filler to prepare NBR/nano-Fe3O4 composites. With adding different mass fraction of nano-Fe3O4, mechanical properties such as tensile strength, modulus at 300% elongation, shore A hardness, surface microstructure, magnetic character and tribological properties such as friction and wear performance of the NBR/nano-Fe3O4 composites were investigated. The anti-wear and friction-reducing properties were also discussed. The results indicated that there was little change on mechanical properties, but the tribological properties were greatly improved, which laid both theoretical and applied foundation for the design of high-performance lubricating composites used for sealing.