摘要
综合运用硫化仪分析、橡胶加工分析及动态力学分析等表征手段,考察硫化对炭黑填充丁苯橡胶体系中多重相互作用的影响。结果表明:炭黑聚集体的絮凝在硫化初期完成;当炭黑含量达到一定值时,炭黑对混炼胶的补强效果优于相应的硫化胶,且应变扫描对混炼胶的补强效果影响较大;Payne效应与炭黑的体积含量间存在一定的对应关系;混炼胶的玻璃化温度(Tg)随炭黑含量增大而升高的幅度大于硫化胶;未填充体系硫化前后的Tg之差大于填充体系;Tg及结合橡胶含量均随炭黑含量增大而线性增大。
The effect of vulcanization on multiple interactions in carbon black （CB） filled SBR was investigated by means of MDR, RPA and DMA. The results showed that the CB aggregates agglo merated at the initial stage of vulcanization. It was found that when the addition level of CB reached a certain value,the reinforcement effect of CB on the compounds was better than the vulcanizates, and the reinforcement effect was significantly affected by strain sweep. Payne effect was related to the CB volume concentration. The increase of glass transition temperature （Tg） of the compounds with in- crease of CB volume concentration was larger than that of the vulcanizates. The difference of Tg of un- filled system before and after vulcanization was larger than that of filled system. The Tg and bound rubber content increased linearly with the increase of CB content.
出处
《橡胶工业》
CAS
2015年第10期581-586,共6页
China Rubber Industry
基金
国家自然科学基金资助项目(51073084)
关键词
丁苯橡胶
炭黑
硫化
填充
多重相互作用
絮凝
SBR
carbon black
vulcanization
filling
multiple interactions
agglomerate
