The properties of vulcanization and vul-canizate of four difference epoxy mole fraction epoxidized trans - 1, 4 - polyisoprene (ETPI) were studied, and the ETPI - containing tread and cord fabric layer of tire compounds were tested. The results showed that ETPI could be vulcanized with conventional sulfur - accelerator vulcanization system. Among three conventional kinds of accelerator M, CZ, TMTD, vulcanization curve of ETPI with CZ as accelerator was the most ideal. Compared with unepoxidized trans -1, 4 ...