| The performance of two kinds of ESBR1502 with different monomer conversion ratio,i.e.76% (HSBR) and 70% (LSBR),was experimentally evaluated.The results showed that,compared with LSBR,HSBR had lower molecular weight,wider molecular weight distribution and higher content of bound styrene.The Mooney viscosity，ash content,volatile content and gel content of HSBR met the requirement of national standards.HSBR compound had faster curing rate and better processability than LSBR.Compared with LSBR vulcanizate,the Shore A hardness of HSBR vulcanizate was similar,the modulus was higher,the wet skid resistance was better,but the wear resistance was a little lower. |
