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首页> 外文会议>ASME International Mechanical Engineering Congress >EFFECT OF FLOW FIELDS ON MORPHOLOGY OF PP/NANO-CACO{sub}3 COMPOSITE AND ITS RHEOLOGICAL BEHAVIOR
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EFFECT OF FLOW FIELDS ON MORPHOLOGY OF PP/NANO-CACO{sub}3 COMPOSITE AND ITS RHEOLOGICAL BEHAVIOR

机译：流场对PP /纳米Caco {Sub} 3复合材料形态及其流变行为的影响及其流变行为

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摘要

Polypropylene (PP)/nano-calcium carbonate (nano-CaCO{sub}3) 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.
机译：使用共旋转的啮合的双螺杆挤出机制备聚丙烯（PP）/纳米碳酸钙（纳米Caco {Sub} 3）复合物。研究了流场对纳米复合材料形态的影响。透射电子显微镜（TEM）用于测定纳米复合材料中的形态。通过使用差示扫描量热法（DSC）研究了纳米复合材料的结晶行为，并通过熔体流动指数测试仪研究了熔融剪切粘度。该研究表明，流动场通过适当地组合在该工作中的螺杆元件的类型，在发展纳米复合材料的形态方面起着重要作用。另外，表明填料含量小于10wt％的纳米复合材料的熔体粘度低于整齐PP。

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