核壳橡胶粒子改性沥青的高温贮存稳定性(英文)  

Storage stability of core-shell grafting copolymer modified asphalt at high temperature

作　　者：张宝昌[1] 吴明金[2] 高光辉[2] 张宝砚[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110004 [2]长春工业大学化学工程学院,吉林长春130012

出　　处：《合成橡胶工业》2008年第1期74-74,共1页China Synthetic Rubber Industry

基　　金：Ministry of Education Science and Technology Research Key Project(206040)

摘　　要：用乳液接枝法合成了核壳结构的丁二烯橡胶粒子接枝苯乙烯及少量沥青的聚合物,用以共混改性基质沥青,考察了核壳橡胶粒子改性沥青高温离析上下层的软化点及其差值,并进行了内部分散形态分析。结果表明,改性沥青的软化点明显升高,离析差不超过1.5℃;橡胶相以区域网络结构均匀地分散。It is well known that polymer modified asphalt has been widely applied in the paving and roofing industries. However, due to the difference in solubility parameters between the base asphalt and polymer. As a result, the storage stability of the polymer modified asphalt at high temperature is usually poor

关 键 词：乳液接枝聚合 核壳粒子 形态结构 离析差 

分 类 号：TQ330[化学工程—橡胶工业]