Effect of flow fields on morphology of PP/nano-CaCO3 composite and its rheological behavior

被引：0
作者：
Huang, Han-Xiong [1 ]
Jiang, Guo [1 ]
Mao, Shan-Qiang [1 ]
机构：
[1] S China Univ Technol, Coll Ind Equipment & Control Engn, Ctr Polymer Proc Equipment & Intellectualizat, Guangzhou 510640, Peoples R China
来源：
PROCEEDINGS OF THE ASME MATERIALS DIVISION | 2005年 / 100卷
关键词：
PP/nano-CaCO3; composite; flow fields; morphology; rheological behavior; MECHANICAL-PROPERTIES; NANOCOMPOSITES; POLYPROPYLENE; CRYSTALLIZATION; POLYMER;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Polypropylene (PP)/nano-calcium carbonate (nano-CaCO3) composite was prepared using a co-rotating, intermeshing twin-screw extruder. The effect of flow fields on the morphology of the nanocomposite was investigated. Transmission electron microscopy (TEM) was used for the determination of the morphology in the nanocomposite. The crystallization behavior of the nanocomposite was studied by using differential scanning calorimetry (DSC) and the melt shear viscosity was investigated by a melt flow index tester. The study showed that the flow field, through appropriately combining the type of the screw elements in this work, plays an important role in developing morphology of the nanocomposite. In addition, it was shown that the melt viscosity for the nanocomposite at the filler content less than 10 wt% is lower than that of neat PP.
引用
收藏
页码：567 / 574
页数：8
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