作　　者： ; ;

机构地区： 仲恺农业技术学院

出　　处： 《高分子材料科学与工程》 2007年第1期176-179,共4页

摘　　要： 使用自行研制的毛细管动态流变仪,研究振动参数对聚丙烯(PP)与碳酸钙(C aCO3)在不同配比时混料流变行为的影响。实验结果表明,填充体系的表观黏度随着振动频率和振幅的增加而显著降低,在频率8H z左右,达到了最小值,并且当C aCO3的含量较低时,其表观黏度随着振动参数的变化响应更明显。 Polypropylene filled with CaCO3 in various amounts was extruded in self-made dynamic capillary rheometer and the effects of vibration parameters on rheological behaviors were studied. The experimental results show the apparent viscosity of filled system remarkably decreases with the increase of vibration frequency and amplitude. The apparent viscosity reaches to minimum value as the vibration frequency is about 8 Hz. When the filled percentage of CaCO3 is smaller, the response of apparent viscosity is more distinct with the increase of vibration parameters.

关 键 词： 动态成型 流变行为 碳酸钙 聚丙烯

领　　域： [理学] [理学]