The EBR with a epoxy group content of 28% has its oil resistance similar to that of NBR with an acrylonitrile content of 28%,and its air impermeability similar to that of IIR;

• 环氧基含量为2 8%25的EBR ,其耐油性与丙烯腈含量2 8%25的丁腈橡胶(NBR)相近,气密性与丁基橡胶(IIR)相近;