Abstract:The physical performances and wear behaviors of nitrilebutadiene rubber (NBR) under the conditions of low curing temperature between 100 ℃and 150 ℃were studied.The morphology of worn surface of NBR was measured using scanning electron microscopy (SEM),and the wear mechanism of NBR under different curing temperature was discussed.The results indicate that as the curing temperature increased,the physical performances of NBR,such as crosslinking density,tensile strength and hardness are firstly increased and then decreased,and the outstanding integrated properties is achieved for NBR under the curing temperature of 120 ℃.As the curing temperature increased,the wear loss of NBR is firstly decreased and then increased,and the NBR sample under the curing temperature of 120 ℃ has the lowest wear loss,the lowest and most stable friction coefficient.Abrasive wear is dominating for NBR sample under the curing temperature of 120 ℃,while the wear mechanism changes from single abrasive wear into worse adhesion wear for the NBR sample under other curing temperature.NBR sample under curing temperature of 120 ℃ exhibits outstanding adhesion wear resistance.