纤维状海泡石/氟橡胶复合材料的硫化反应动力学  

Cure kinetics of fibrous sepiolite / fluororubber composites

作　　者：闫普选[1] 卢江荣[1] 栗英亮[1] 王玉峰[1] 韩飞雪[1] 

机构地区：[1]桂林电子科技大学材料科学与工程学院,广西桂林541004

出　　处：《合成橡胶工业》2015年第4期294-298,共5页China Synthetic Rubber Industry

基　　金：广西信息材料重点实验室资助项目(131019-Z);广西自然科学基金资助项目(2014 GXNSFBA 118245)

摘　　要：以自制的纤维状海泡石为填料刺备氟橡胶复合材料，在分析海泡石纤维束形貌和化学成分的基础上，采用无转子硫化仪表征纤维状海泡石／氟橡胶复合材料的硫化历程，研究了橡胶复配体系的硫化反应动力学。结果表明，剥离的海泡石纤维束直径为100～200nm，长为1～5斗m；随其用量增加和混炼胶硫化温度的升高硫化速率加快，且硫化历程遵循自催化反应模型；当海泡石用量增加时体系的反应活化能先增加后降低，用量为10份（质量）时的反应活化能最高。The filled fluororubber composites were prepared with self-made fibrous sepiolite as filler. On the basis of measuring morphology of fibrous bundle and chemical composition of sepiolite the cure process of fibrous sepiolite/fluororubber composites was characterized by a moving die rheometer, and cure kinetics of the composite system was investigated. The results showed that the diameter and length of sepiolite fiber bundle were 100 -200 nm and 1 -5 μm respectively; with increasing fibrous sepiolite amount and cure temperature, the curing rate increased, and the curing process followed the model of self-catalyzed reaction; as fibrous sepiolite was increased, the activation energy of reaction increased first and then decreased and reached the maximum at 10 phr of sepiolite.

关 键 词：氟橡胶 海泡石 纤维束 硫化反应动力学 

分 类 号：TQ333.93[化学工程—橡胶工业]