Investigate on mechanical and tribological properties of solution styrene butadiene and butadiene rubber composites

Solution styrene butadiene and butadiene rubber (SSBR-BR) composites reinforced with different contents of SiO 2 -graphene have been fabricated firstly. The mechanical properties of the rubber composites were comparatively investigated using tensile tests; experimental results showed that, as an overall trend, the tensile and tear strength increased with increasing contents of SiO 2 -graphene. Most importantly, under the condition of simulating practical working condition, the tribological behavior of SSBR-BR composites with different contents of SiO 2 -graphene was explored via a universal ring-plate frictional tester in detail. Combined with the surface roughness of the counterparts, the wear mechanisms were discussed for SSBR-BR composites under the cement and asphalt counterparts. Finally, several wear mechanisms under different actual working conditions were proposed.