纳米丁腈橡胶胶乳的制备与催化加氢  

Preparation and catalytic hydrogenation of nano nitrile rubber latexes

作　　者：李文鑫 张宝嘉 周骏阳 宋建晖 王辉[1] LI Wen-xin;ZHANG Bao-jia;ZHOU Jun-yang;SONG Jian-hui;WANG Hui(School of Polymer Science and 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

出　　处：《合成橡胶工业》2024年第5期394-397,共4页China Synthetic Rubber Industry

基　　金：国家自然科学基金面上项目(22179068,21674055);山东省泰山学者计划项目(ts 201712047)。

摘　　要：采用常规乳液聚合法结合低温间歇聚合工艺制备了丁腈橡胶胶乳,使用自制钌系催化剂对该胶乳进行乳液加氢,系统研究了催化剂用量和氢气压力对丁腈橡胶胶乳加氢效果的影响规律。结果表明,所制备丁腈橡胶胶乳的平均粒径为69.13 nm,加氢前后胶乳的粒径基本保持不变且胶乳稳定性良好;氢气压力越大催化加氢效果越好;当催化剂质量分数为0.017 5%时,可制得氢化度为99%以上且不含凝胶的产品。Nitrile rubber latex was prepared by conventional emulsion polymerization combined with low-temperature batch polymerization process,the latex was hydrogenated with self-made ruthenium catalyst,and the influence of catalyst amount and hydrogen pressure on the hydrogenation effect of nitrile rubber latex was systematically studied.The results showed that the average particle size of the prepared nitrile rubber latex was 69.13 nm,and the particle size of the latex remained basically unchanged and the latex remained stable before and after hydrogenation.The higher the hydrogen pressure was,the better the catalytic hydrogenation effect was.When the mass fraction of catalyst was 0.0175%,degree of hydrogenation of the product was more than 99%and no gel was obtained.

关 键 词：丁腈橡胶胶乳 乳液聚合 加氢 钌系催化剂 粒径 氢化度 凝胶含量 

分 类 号：TQ333.7[化学工程—橡胶工业]