PP/CNTs复合材料的非等温结晶动力学研究  

Kinetics of Non-isothermal Crystallization for PP/CNTs Nanocomposites

作　　者：贾晓川[1,2] 李东泽[3] 石坚[3] 

机构地区：[1]天津出入境检验检疫局工业产品安全技术中心,天津300201 [2]天津市检验检疫科学技术研究院,天津300457 [3]天津科技大学材料科学与化学工程学院,天津300457

出　　处：《塑料工业》2013年第9期76-80,共5页China Plastics Industry

基　　金：天津市科技计划项目(12ZCZDSF01000);天津市应用基础及前沿技术研究计划(11JCYBJC03400);天津科技大学实验室开放基金(1103A208)

摘　　要：对碳纳米管进行表面处理,利用熔融共混法制备聚丙烯/碳纳米管复合材料,经过粉碎压片后,得到样品。通过SEM观察聚丙烯/碳纳米管复合材料的断面结构。通过DSC研究聚丙烯/碳纳米管复合材料的非等温结晶过程。结果表明,经表面修饰的碳纳米管能够均匀分散于聚丙烯基体中,二者界面结合紧密;加入微量的碳纳米管就可以明显地提高复合材料的结晶温度和结晶速率。The carbon nanotube was subjected to surface treatment, polypropylene/carbon nanotube composites were prepared by the melt blending, after pulverization, sample was obtained. The cross-sectional structure of polypropylene/carbon nanotube composites was observed by SEM. Non-isothermal crystallization process of polypropylene/carbon nanotube composites was characterized by DSC. The results showed that modified carbon nanotubes can be uniformly dispersed in the polypropylene matrix which strengthened the interfacial adhesion between MWCNTs and PLLA. By adding a trace amount of carbon nanotubes, the crystallization temperature and crystallization rate of the composite material can obviously increased.

关 键 词：聚丙烯 碳纳米管 复合材料 非等温结晶动力学 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]