中国塑料

中国塑料 ›› 2011, Vol. 25 ›› Issue (01): 90-93 .DOI: 10.19491/j.issn.1001-9278.2011.01.020

• 加工与应用 • 上一篇    下一篇

PTT/MMT复合材料流变性能的研究

王立岩 李光 郭静 李继新 相恒学   

  1. 沈阳工业大学 东华大学 沈阳工业大学辽阳校区石油化工学院
  • 收稿日期:2010-09-21 修回日期:1900-01-01 出版日期:2011-01-26 发布日期:2011-01-26

Study on Rheological Behavior of PTT/MMT Composites

WANG Liyan LI Guang GUO Jing LI Jixin XIANG Hengxue   

  • Received:2010-09-21 Revised:1900-01-01 Online:2011-01-26 Published:2011-01-26
  • Contact: WANG Liyan

摘要： 采用熔融共混法制备了聚对苯二甲酸丙二酯/蒙脱土（PTT/MMT）复合材料，并采用毛细管流变仪对复合材料的流变性能进行了研究。结果表明，PTT和PTT/MMT复合材料均为假塑性流体，1 %~3 %的MMT就可以显著改善复合材料的流动性。复合材料的非牛顿指数大于PTT，表观黏度小于PTT，流动性优于PTT，可以在较低的温度下成型加工；复合材料的黏流活化能高于PTT，更适合通过升高温度的方法来改善其流动性。

关键词: 聚对苯二甲酸丙二醇酯, 蒙脱土, 复合材料, 流变性能

Abstract: The rheological properties of poly(trimethylene terephthalate) /montemorillonite(PTT/MMT) composites prepared by melt blending were studied using capillary rheometer. It showed that PTT and PTT/MMT melts were all pseudo-plastic fluids, and the addition of 1%~3% MMT could obviously improve the flow property of the composites. The non-Newtonian index of the composites was higher than that of PTT. The apparent viscosity of the composite was lower than that of PTT, and their flow behavior was better than that of PTT, so the composites could be processed at lower temperature. The viscous flow activation energy of the composite was higher than that of PTT, and it was more proper for the composite to improve their flow properties by increasing temperature.

Key words: poly(trimethylene terephthalate), montmorillonite, composite, rheological property

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