氢化稀土异戊胶乳的制备  

Preparation of rare earth hydrogenated polyisoprene latex

作　　者：郎秀瑞 潘宏伟 王春芙[2] LANG Xiu-rui;PAN Hong-wei;WANG Chun-fu(School of Polymer Science and Engineering,Qingdao University of Science and Technology,Qingdao 266042,China;College of Chemistry and Molecular Engineering,Qingdao University of Science and Technology,Qingdao 266042,China)

机构地区：[1]青岛科技大学高分子科学与工程学院,山东青岛266042 [2]青岛科技大学化学与分子工程学院,山东青岛266042

出　　处：《合成橡胶工业》2021年第3期231-231,共1页China Synthetic Rubber Industry

基　　金：Supported by Shandong Key Research and Development Plan(Military and Civilian Technology Integration)(2018 JMRH 0205).

摘　　要：采用复配型乳化剂制备了稀土异戊胶乳,并对稀土异戊胶乳进行了二亚胺还原法加氢改性,从而制备了具有不同加氢度的氢化异戊胶乳。结果表明,当反应温度为30℃、水合肼与碳碳双键的摩尔比为4/1、过氧化氢与水合肼的摩尔比为1.5/1.0时,氢化异戊橡胶的加氢度可达83.54%,且随着加氢度的增加,氢化异戊橡胶最大热分解温度从397.62℃升至411.69℃。Rare earth polyisoprene rubber(IR)was well known as synthe-tic rubber with good performance which had the most similar structure with natural rubber[1].However,It had the common problems with lower oxidative stability,environmental stability and worse thermal properties than those of monoolefin-based elastomers,such as ethylene-propylene rubber and ethylene-propylene diene rubber,because of the unsaturated double bonds in its cis-1,4-polyisoprene backbone[2].

关 键 词：稀土异戊胶乳 水合肼 氢化异戊橡胶 加氢度 热性能 

分 类 号：TQ331[化学工程—橡胶工业]