2-乙酰柠檬酸三丁酯对苯乙烯-乙烯/丁烯-苯乙烯嵌段共聚物性能的影响  

Effect of acetyl tributyl citrate on properties of styrene-ethylene/butene-styrene block copolymer

作　　者：张湘汉 许彬华 纪剑坤 郭江彬 朱君秋 冀峰 罗水源 ZHANG Xiang-han;XU Bin-hua;JI Jian-kun;GUO Jiang-bin;ZHU Jun-qiu;JI Feng;LUO Shui-yuan(College of Chemical Engineering and Materials Science/Fujian Engineering and Research Center of Green and Environment-friendly Functional Footwear Materials,Quanzhou Normal University,Quanzhou 362000,China)

机构地区：[1]泉州师范学院化工与材料学院/福建省绿色环保功能鞋材工程研究中心,福建泉州362000

出　　处：《合成橡胶工业》2021年第4期310-313,共4页China Synthetic Rubber Industry

基　　金：福建省教育厅中青年教师教育科研项目(JT 180366,JAT 170488);福建省自然科学基金资助项目(2020 J 05155);泉州市科技计划项目(2017 G 017,2017 ZT 001,2017 G 044,2017 G 006,2019 C 106)。

摘　　要：将2-乙酰柠檬酸三丁酯(ATBC)添加到苯乙烯-乙烯/丁烯-苯乙烯嵌段共聚物(SEBS)中对其进行改性,研究了改性后SEBS的化学结构、力学性能及热性能。结果表明,使用ATBC对SEBS进行改性不改变SEBS的链结构,但会使SEBS的拉伸强度和直角撕裂强度降低、扯断伸长率增大、玻璃化转变温度和结晶度下降。结晶度下降是造成ATBC改性SEBS拉伸强度和直角撕裂性能变差的主要原因。2-acetyl tributyl citrate(ATBC)was added to styrene-ethylene/butane-styrene block copolymer(SEBS)to modify the SEBS.The chemical structure,mechanical properties and thermal properties of the modified SEBS were studied.The results showed that the chain structure of SEBS modified by ATBC was not changed,but the tensile strength and tear strength decreased,elongation at break increased,and glass transition temperature and crystallinity decreased.The decrease of crystallinity was the main reason for deterioration of tensile strength and tear strength of SEBS modified by ATBC.

关 键 词：苯乙烯-乙烯/丁烯-苯乙烯嵌段共聚物 2-乙酰柠檬酸三丁酯 链结构 力学性能 热性能 

分 类 号：TQ334.3[化学工程—橡胶工业]