摘要
对集成橡胶(SIBR)硫化特性进行研究,并与异戊橡胶(IR)、丁苯橡胶(SBR)和顺丁橡胶(BR)进行对比。结果表明:与IR,SBR和BR相比,未补强SIBR胶料焦烧时间较长,硫化速率较慢;炭黑补强SIBR胶料焦烧时间明显缩短,硫化速率增大,硫化平坦性较好。SIBR在硫化温度超过170℃时存在明显的硫化返原现象,并导致相应硫化胶的压缩疲劳温升和动态损耗增大,其最适宜的硫化温度为150℃。
The curing behavior of styrene-isoprene-butadiene rubber（SIBR） was studied,and com-pared with isoprene rubber （IR）, styrene-butadiene rubber （SBR） and butadiene rubber （BR）. The re-sults showed that, compared with IR,SBR and BR, the unfilled SIBR had longer scorch time and low-er curing rate. With carbon black, the scorch time of SIBR decreased obviously, the curing rate in-creased and the compound had good plateau cure. However, when the curing temperature was higher than 170 ℃ ,there was a remarkable reversion in SIBR,which resulted in vulcanizates having a large temperature increase during dynamic compression process and high dynamic loss. The optimum curing temperature for SIBR was 150 ℃.
出处
《橡胶工业》
CAS
北大核心
2013年第12期733-737,共5页
China Rubber Industry
基金
国家自然科学基金资助项目(51073084)
关键词
集成橡胶
硫化特性
硫化返原
动态损耗
styrene-isoprene-butadiene rubber
curing behavior
curing reversion
dynamic loss
