摘要
研究了用负载钛催化剂、通过溶液聚合法合成的高纯度反式-1,4-聚异戊二烯(TPI)与天然橡胶(NR)共混胶的硫化特性、力学性能、老化性能以及动态疲劳性能。结果表明,与NR相比,TPI与NR质量比为20/80共混胶的门尼黏度稍高,硫化特性基本相当,力学性能略有下降,而其动态疲劳性能则提高至NR的3~4倍。当硫黄与促进剂M的质量比为2.5/1.0时,TPI/NR共混胶的综合性能达到最佳。
The curing characteristics, mechanical properties, aging properties and dynamic fatigue properties of the blend of highly pure trans-1,4-poly- isoprene （TPI） synthesized by solution polymerization with supported titanium catalyst and natural rub- ber （NR） were studied. The results showed that the Mooney viscosity of the TPI/NR blends （mass ratio 20/80） was slightly higher compared with NR, the curing characteristics was similar to NR, the mechanical properties decreased slightly compared with NR, and the dynamic fatigue property was 3 - 4 times as high as NR. When the mass ratio of sulfur to accelerator M was 2.5/1.0, the comprehensive performance of the blend was the best.
出处
《合成橡胶工业》
CAS
CSCD
北大核心
2017年第4期291-295,共5页
China Synthetic Rubber Industry
