NR/BR/NBR并用胶的结构与性能  

Study on structure and properties of NR/BR/NBR blend

作　　者：严志云[1] 宁凯军[1] 姜其斌[1] 刘安华[1] 贾德民[1] 

机构地区：[1]华南理工大学材料科学与工程学院,广东广州510640

出　　处：《橡胶工业》2003年第7期389-392,共4页China Rubber Industry

摘　　要：研究了NR/BR/NBR并用胶的结构与性能。透射电子显微镜分析显示,随着NBR用量的增大,炭黑的分散趋于均匀;NR/BR/NBR并用胶出现两个玻璃化温度,在0℃时的tanδ值增幅较大,而在65和80℃时的tanδ值变化不大;并用胶物理性能变化不大。通过调节NBR用量可获得抗湿滑性能较好、滚动阻力和生热小的胎面胶。The structure and properties of NR/BR/NBR blend were investigated. It was found through the analysis by TEM that as the proportion of NBR increased;the distribution of carbon black tended to more even;two glass transition temperatures existed in the blend;the tanδ at 0 ℃ increased greatly and the tanδ at 65 and 80 ℃ decreased at first and then increased in a small range; and the physical properties of blend changed little. A new type of tread compound based on NR/BR/NBR with good wet traction,low rolling resistance and low heat build-up could be obtained by adjusting the proportion of NBR in the blend.

关 键 词：NR/BR/NBR并用胶 形态结构 动态力学性能 物理性能 

分 类 号：TQ330.3[化学工程—橡胶工业]