稀土异戊橡胶性能的对比研究  

Comparison Research of Properties of Polyisoprene Rubber synthesized by Rare-Earth Catalyst

作　　者：于琦周[1] 李柏林[1] 张新惠[1] 张学全[1] 

机构地区：[1]中国科学院长春应用化学研究所,长春130022

出　　处：《特种橡胶制品》2017年第2期1-4,25,共5页Special Purpose Rubber Products

基　　金：国家科技支撑计划20161220项目

摘　　要：研究了使用国产稀土催化体系制备的异戊橡胶(NdIR)的性能,并与国外同类产品SKI-5和天然橡胶SMR10进行了对比。结果表明,国产NdIR相对分子质量分布较SKI-5窄,拉伸强度、拉断伸长率、拉断永久变形和撕裂强度都优于SKI-5。在相同配方和工艺条件下,NdIR的Payne效应弱于SKI-5,与SMR10相似;NdIR和SMR10的压缩生热和滚动阻力数据相吻合。Properties of polyisoprene rubber prepared by domestic rare-earth catalyst（NdIR）were researched,and it was compared with SKI-5 and SMR10 of abroad counterparts.The results showed that the molecular weight distribution of NdIR was narrower than that of SKI-5,the tensile strength,elongation at break,tensile rupture set and tear strength were better than those of SKI-5.At the conditions of the same formula and the same processing,Payne effect of NdIR was weaker than that of SKI-5,and it was similar to SMR10.The friction heat build-up and rolling resistance of NdIR was consistent with those of SMR10.

关 键 词：稀土异戊橡胶 相对分子质量分布 力学性能 动态力学性能 

分 类 号：TQ333.3[化学工程—橡胶工业]