PC/TPU共混物的流变性能  

The Rheological Property of PC/TPU Blend

作　　者：孙清[1] 郑昌仁[1] 傅伟宁 李洪 

机构地区：[1]南京化工大学高分子系

出　　处：《塑料工业》1997年第2期92-94,共3页China Plastics Industry

摘　　要：用毛细管流变仪研究了聚碳酸酯（ＰＣ）及聚碳酸酯／热塑性聚氨酯弹性体（ＰＣ／ＴＰＵ）共混物的流变性能。实验结果表明：ＰＣ熔体粘度对剪切速率（γ）不敏感，而对温度（Ｔ）敏感。温度升高，ＰＣ粘度降低。加入ＴＰＵ大大改善了共混物的流动性能，使共混物的成型加工变得容易进行。当ＴＰＵ含量为４０份时，共混物的熔体粘度出现一极小值。加入不同第三组分对于降低共混物的熔体粘度效果不同。The rheological properties of PC and PC/TPU blend were studied by means of capillary rheometer.The results showed that the melt viscosity(η α)of PC was sensitive to temperature,but unsensitive to shear rate() When the temperature incteased,η a of PC decreased.The use of TPU could obviously improve the rheological property of the blend and make the processing easily.The melt viscosity of the blend appeared a valley when TPU content was 40 parts.The effect on decreasing the melt viscosity of the blend was different when different third component was used.The third component E could increase the melt viscosity of the blend.

关 键 词：聚碳酸酯 热塑性聚氨酯 弹性体 流变性 橡塑共混 

分 类 号：TQ324.9[化学工程—合成树脂塑料工业]