AM monomer was grafted on waste rubber powder(WRP) surface by using the method of UV鄄irradia鄄
tion,and the optimal conditions were investigated. Modified WRP/ NR composites were prepared,and the mechanical
properties,hot air aging properties and micro morphology were investigated. The results show that the optimal condi鄄
tion can be obtained when content of AM is 8%,content of BP is 5%,illumination time is 4 min and particle size is
100 mesh. The tensile strength,shore A hardness and thermal oxidative aging performance of composites can be im鄄
proved when modified WRP amount is 10%. The micro morphology analysis show that the dispersibility of WRP is in鄄
creased and the compatibility is improved after modification.