超细重质碳酸钙填充聚丙烯的研究  

Ultrafine Ground Calcium Carbonate Filled Polypropylene

作　　者：洪连周[1] 毕舒[1] 宁平[1] 欧阳环[1] 

机构地区：[1]华南理工大学材料科学与工程学院,广东广州510640

出　　处：《塑料》2006年第5期31-34,78,共5页Plastics

摘　　要：利用双螺杆挤出机制备了超细重质CaCO3填充聚丙烯(PP)复合材料。测得了PP/超细重质CaCO3复合材料的力学性能。采用SEM、XRD、DSC对PP/超细重质CaCO3复合材料进行了研究。结果表明:超细重质碳酸钙在基体中基本实现了良好分散;在一定填充范围内,超细重质CaCO3的加入可以极大的提高复合材料的冲击强度;复合材料的结晶度随超细重质碳酸钙填充量的增加而有所降低,但复合材料的熔点变化不大。Ultrafine ground calcium carbonate filled polypropylene composite was made by twin screw extruder. The mechanical properties of the composite were also determined. The structure morphology of the composite was studied with SEM, XRD and DSC. The results showed that the ultrafine ground calcium carbonate presented a good disperse in polypropylene composite. The ultrafine ground calcium carbonate improved the impact strength of the composite in a lower content. The crystallinity of the composite decreased with the increase of the ultrafine ground calcium carbonate,the melting point of the composite had little change.

关 键 词：超细重质CaCO3 PP 复合材料 

分 类 号：TQ327.8[化学工程—合成树脂塑料工业] TQ325.14