集成橡胶硫化特性的研究

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 compared with isoprene rubber （IR），styrene-butadiene rubber（SBR） and butadiene rubber（BR）.The results showed that，compared with IR，SBR and BR，the unfilled SIBR had longer scorch time and lower curing rate.With carbon black，the scorch time of SIBR decreased obviously，the curing rate increased 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 ℃