复合硫化剂和硫化温度对氢化丁腈橡胶性能的影响  

Effects of compound curing agent and curing temperature on properties of hydrogenated nitrile rubber

作　　者：张武建 谈金祝[1] 潘龙[1] 贺日东 胡雪东 

机构地区：[1]南京工业大学机械与动力工程学院,南京211816

出　　处：《合成橡胶工业》2017年第6期448-452,共5页China Synthetic Rubber Industry

基　　金：江苏省"六大人才高峰"高层次人才培养资助项目;江苏省高等学校大学生实践创新训练计划(201610291007 Z)

摘　　要：以硫黄与过氧化二异丙苯(DCP)为复合硫化剂,考察了DCP用量和硫化温度对氢化丁腈橡胶(HNBR)硫化特性及物理机械性能、压缩应力弛豫特性的影响。结果表明,随着DCP用量的增大,HNBR混炼胶的转矩差值增大,焦烧时间延长,正硫化时间先延长后缩短;随着硫化温度的升高,HNBR混炼胶的转矩差值先增大后减小,焦烧时间和正硫化时间均缩短;当DCP用量为7份、硫化温度为160℃时,HNBR硫化胶的物理机械性能和压缩应力弛豫特性最佳。With sulfur and dicumyl peroxide （DCP） as compound curing agent, the effects of DCP amount and curing temperature on the curing characteristics, mechanical properties and compres- sion stress relaxation characteristics of hydrogenated nitrile rubber （HNBR） were investigated. The resuits showed that with the increase of DCP amount, the torque difference of HNBR compound increased, the scorch time prolonged, and the optimum curing time prolonged first and then shortened. With the in- crease of the curing temperature, the torque difference of the HNBR compound increased first and then decreased, both the scorch time and the opti- mum curing time shortened. When DCP was 7 phr and the curing temperature was 160 ~C, the mecha- nical properties and compression stress relaxation characteristics of I-INBR vulcanizates were the best.

关 键 词：氢化丁腈橡胶 硫黄 过氧化异丙苯 硫化特性 物理机械性能 压缩应力弛豫特性 

分 类 号：TQ333.7[化学工程—橡胶工业]