端羧基液体丁腈酯橡胶的合成及增韧环氧树脂的力学性能  

Synthesis of carboxyl-terminated liquid nitrile-butadiene-butylacrylate rubber and mechanical properties of toughening epoxy resin

作　　者：仝少凯 岳艳芳 冯展威 贺剑云 范卫锋[2] TONG Shao-kai;YUE Yan-fang;FENG Zhan-wei;HE Jian-yun;FAN Wei-feng(Changqing Downhole Technology Company,CNPC Chuanqing Drilling Engineering Co Ltd,Xi′an 710018,China;Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials/Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China)

机构地区：[1]中国石油川庆钻探工程有限公司长庆井下技术作业公司,西安710018 [2]中国科学院长春应用化学研究所/高性能合成橡胶及其复合材料重点实验室,长春130022

出　　处：《合成橡胶工业》2024年第1期77-77,共1页China Synthetic Rubber Industry

基　　金：Supported by Chuanqing Drilling Company′sTechnology Research Project(CQ 2022 B-Z-164-4)。

摘　　要：采用乳液聚合法,加入丁二烯、丙烯腈、丙烯酸丁酯和甲基丙烯酸甲酯四种单体,通过四元共聚合成出端羧基液体丁腈酯橡胶(CTBNB)并用其增韧环氧树脂。傅里叶变换红外光谱与核磁共振波谱的表征均证实了CTBNB的成功合成,其羧基摩尔分数为3.6%。加入10份(质量,下同)CTBNB可全面提升环氧树脂E 51的拉伸强度、扯断伸长率及冲击强度;加入15份可使其冲击强度较未加入者提高259%,达到明显增韧效果。Carboxyl-terminated liquid nitrile rubber_(CTBN)has been extensively studied for toughening modification of epoxy resin due to its good compatibility and telechelic polymer nature,al-lowing the carboxy groups to react with the epoxy groups a.Carboxyl-terminated liquid nitrile-butadiene-butylacrylate rubber(CTBNB)is a modified variety of CTBN,and its flexible ester functional groups can act as plasticizers and improve the low-temperature and heat resistance of polymer chains.

关 键 词：端羧基液体丁腈酯橡胶 四元共聚 环氧树脂 增韧 力学性能 

分 类 号：TQ333.7[化学工程—橡胶工业]