摘要
对聚丙烯 /蒙脱土复合材料的插层情况用X -射线衍射仪和扫描电镜作了分析 ,用双机筒毛细管流变仪考察了聚丙烯和聚丙烯 /蒙脱土复合材料的流变行为 ,结果表明 :在低剪切速率下 ,聚丙烯 /蒙脱土复合材料的粘度均高于聚丙烯 ;在高剪切速率下 ,形成无序插层结构的聚丙烯 /蒙脱土复合材料的粘度低于聚丙烯。
The intercalation of montmorillonite(MMT) in polypropylene (PP) matrix was examined by X ray diffraction method and SEM. Rheological behavior of PP and PP/MMT was investigated. Relationship between the shear viscosity and shear rate was studied using capillarity rheometer. It was found that the shear viscosity of PP/MMT was higher than that of PP under low shear rate.Under high shear rate,its shear viscosity was lower than that of PP owing to the amorphous intercation in the system.
出处
《中国塑料》
CAS
CSCD
北大核心
2003年第12期19-22,共4页
China Plastics
关键词
聚丙烯
蒙脱土
流变性能
polypropylene
montmorillonite
rheological behavior
