丙烯酸接枝丁苯胶乳的合成和性能研究  

Synthesis and characterization of SBR latex grafted with acrylic acid

作　　者：夏海兵[1] 彭静[1] 乔金梁[2] 魏根拴[2] 

机构地区：[1]北京大学化学与分子工程学院应用化学研究所,北京100871 [2]中国石化北京化工研究院,北京100013

出　　处：《橡胶工业》2003年第3期138-142,共5页China Rubber Industry

基　　金：国家重点基础研究专题经费资助项目(G1999064800)

摘　　要：在空气和室温条件下采用氧化 还原引发体系合成丙烯酸接枝丁苯胶乳,对影响丙烯酸接枝率R的因素、接枝胶乳结构及聚己内酰胺(PA 6)/丙烯酸接枝丁苯橡胶(SBR g AA)共混物性能进行了探讨。试验得出,各因素对R影响的大小顺序为:引发剂(叔丁基过氧化氢和四亚乙基五胺)质量分数、丙烯酸质量分数、反应时间;接枝后丁苯胶乳粒径稍有增大且分布变宽;SBR g AA可改善PA 6的冲击强度和拉伸强度。The acrylic acidgrafted SBR (SBRgAA) latex was synthesised with oxidationreduction initiating system at the room temperature in the presence of air.The affecting factors on the graft yield R,the structure of grafted latex and the physical properties of PA6/SBRgAA latex were investigated.The test results showed that the order of the affecting factors on R were as follows:content of initiator (tertbutyl hydroperoxide or tetraethylene pentamine)>content of acrylic acid>reaction period;the particle size of SBRgAA latex increased a little,and its distribution became wider;SBRgAA latex could be used to improve the impact strength and tensile strength of PA6.

关 键 词：性能 研究 合成 丁苯胶乳 丙烯酸 接枝聚合 接枝丁苯橡胶 聚已内酰胺 

分 类 号：TQ331[化学工程—橡胶工业]