【摘要】 研究硫化体系对氢化丁腈橡胶(HNBR)/氯丁橡胶(CR)(并用比70/30)并用胶硫化特性、物理性能和耐热老化性能的影响。结果表明:采用硫化剂DCP/助硫化剂TAIC硫化体系时,HNBR/CR并用胶的焦烧时间较长,拉断伸长率较大,拉断永久变形较小,耐热老化性能较好;当硫化剂DCP用量为5份、助硫化剂TAIC用量为3份时,并用胶的硫化速率较大,加工安全性、耐油性能、综合物理性能和耐热老化性能较好。更多还原

【Abstract】 The influence of curing systems on the curing behavior,physical properties and thermal aging property of HNBR/CR blend(blend ratio 70/30) was investigated.The results showed that,when the curing system of main curing agent DCP and co-curing agent TAIC was used,the scorch time of HNBR/CR blend was longer,elongation at break was higher,tensile set at break was lower,and thermal aging property was better.When the addition levels of DCP and TAIC were 5 and 3 phr respectively,the curing rate of HNBR/CR blend was high,and processing safety,oil resistance,comprehensive physical properties and thermal aging property were good.更多还原