无卤阻燃PC/ABS合金流变行为的研究  

Study on Rheological Behavior of Non-halogen Flame-retarded PC/ABS Alloy

作　　者：吴若[1] 段辉丽[1] 刘春林[1] 

机构地区：[1]常州大学材料科学与工程学院,江苏常州213164

出　　处：《中国塑料》2010年第12期80-83,共4页China Plastics

摘　　要：采用毛细管流变仪研究了无卤阻燃聚碳酸酯／丙烯腈-丁二烯-苯乙烯共聚物（PC／ABS）的流变行为，得到了熔体表观黏度及切应力与剪切速率的关系。结果表明，无卤阻燃PC／ABS合金熔体为假塑性流体，表观黏度随剪切速率的增加而降低；在230℃时，合金的非牛顿指数随着阻燃剂含量的增加而增加；在剪切速率为20-3000s^-1时，合金黏度对温度不敏感，即实现黏度降低，采用升温法效果不佳。Rheological behavior of non-halogen flame-retarded PC/ABS alloy was studied, the relationship of melt apparent viscosity and shear stress/shear rate was found. It showed that this system was non-Newtonian pseudo plastic fluid and the apparent viscosity of the melt decreased with the increase of shear rate. At the temperature of 230 ℃ non-Newtonian index of the alloy increased with increasing content of the flame-retardant. When the shear rate was 200-3000 s^-1 , the viscosity value of the alloy was not sensitive to temperature.

关 键 词：聚碳酸酯 丙烯腈-丁二烯一苯乙烯共聚物 阻燃 流变性能 

分 类 号：TQ323.41[化学工程—合成树脂塑料工业] TQ325.2