ABS/纳米CaCO_3复合材料流变性能的研究  

Study on the Rheological Behavior of ABS/nano-CaCO_3 Composites

作　　者：张芳[1] 程方亲[1] 任长富[1] 

机构地区：[1]安徽大学化学化工学院,安徽合肥230039

出　　处：《中国塑料》2007年第10期52-56,共5页China Plastics

基　　金：安徽省高校自然科学基金资助(2006KJ101B);安徽省绿色高分子材料重点实验室资助

摘　　要：采用双螺杆挤出机,通过熔融共混工艺制备了丙烯腈-丁二烯-苯乙烯共聚物/纳米碳酸钙(ABS/nano-CaCO_3)复合材料,利用转矩流变仪研究了其流变行为,探讨了 nano-CaCO_3用量、剪切速率和温度对复合材料黏度的影响。实验数据显示:ABS/nano-CaCO_3熔体为假塑性流体,非牛顿指数 n<1;适量加入 nano-CaCO_3使复合体系熔体的 n 值增加,"柱塞流动"现象降低;在低剪切速率下,ABS/nano-CaCO_3复合体系的熔体黏度较纯 ABS 熔体低;在高剪切速率下,复合体系的熔体黏度较纯 ABS 熔体高。ABS/nano-CaCO3 composites were prepared by melt-blending in a twin screw extruder. The theological behavior of the composites was studied using a torque rheometer. The effects of the nano-CaCO3 content, shear rate, and temperature on the melt viscosity of the composites were discussed. The data showed that the melt of ABS/nano-CaCO3 composites was pseudoplastic, the inclusion of nano-CaCO3 decreased the tendency of mast and tuck flowing.

关 键 词：丙烯腈-丁二烯-苯乙烯共聚物 纳米碳酸钙 流变性能 表观黏度 

分 类 号：TQ320.7[化学工程—合成树脂塑料工业]