文献类型：期刊文献

中文题名：纳米CaCO_3表面改性及其对PVC复合材料性能的影响

英文题名：Surface Modification of Nano-CaCO_3 and Its Effects on the Properties of PVC Materials

作者：吴志超[1];栾英豪[1];陈雪梅[1]

机构：[1]华东理工大学化工学院,上海200030

年份：2015

卷号：43

期号：2

起止页码：69

中文期刊名：塑料科技

外文期刊名：Plastics Science and Technology

收录：CSTPCD;;北大核心:【北大核心2014】；

基金：上海市科学技术委员会资助课题(12nm0502800)

语种：中文

中文关键词：聚氯乙烯;纳米CaCO3;表面改性;界面;增韧

外文关键词：PVC; Nano-CaCO3; Surface modification; Interface; Toughening

摘要：分别采用十八胺、十二胺和正辛胺对纳米CaCO3进行湿法改性,制备了聚氯乙烯(PVC)/纳米CaCO3复合材料,系统研究了不同改性剂改性的纳米CaCO3对PVC基复合材料力学性能的影响。结果表明:3种改性剂均可以与纳米CaCO3表面结合,形成一有机层,阻止了纳米CaCO3团聚,使改性后的粒子可以均匀分散在PVC基体中;十八胺、十二胺和正辛胺改性后的纳米CaCO3均可显著提高PVC复合材料的缺口冲击强度,并且随着改性剂分子链长度的增加,冲击强度也略有提高;改性纳米CaCO3可以略微提高复合材料的弯曲强度,但材料的拉伸强度略有下降。
Surface of nano-CaCO3 was modified by octadecanamine, dodecanamine and octylamine respectively, and the PVC composite materials were prepared. The influence of modified nano- CaCO3 with different modifier on the mechanical properties of PVC composite materials was investigated systematically. The results show that three kinds of modifier could be combined with the surface of nano-CaCO3, an organic layer forms and the nano-CaCO3 can disperse evenly in PVC. Nano-CaCO3 modified with octadecanamine, dodecanamine and octylamine can dramatically increase the notched impact strength of PVC, and the impact strenght slightly increases with the increase of molecular chain length of modifier. The modified nano-CaCO3 can slightly improve the flexural strength of the PVC composites, but the tensile strength declines slightly.