文献类型：期刊文献

中文题名：酰胺类改性剂对nano-CaCO_3的表面改性及其在PVC中的应用

英文题名：Surface Modification of Nano-CaCO_3 by Amide and Its Application in 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：5

起止页码：85

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;纳米碳酸钙;表面改性;酰胺;增韧

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

摘要：为了改善纳米碳酸钙在聚氯乙烯(PVC)基体中的分散性和相容性,分别采用十八胺、十二胺和辛胺与马来酸酐反应,制备出三种改性剂;然后分别用这三种改性剂对纳米碳酸钙进行湿法改性,制备了PVC/纳米碳酸钙复合材料,系统研究了改性纳米碳酸钙对PVC复合材料力学性能的影响。结果表明:三种改性剂均可以与纳米碳酸钙表面结合,阻止了纳米碳酸钙的团聚,改性后的粒子可以均匀地分散在PVC基体中;三种改性剂改性的纳米碳酸钙都可以显著提高PVC复合材料的缺口冲击强度,但其弯曲强度和拉伸强度变化不大。
In order to improve the dispersion and compatibility of nano-CaCO3 in PVC, three different modifiers were synthesized by the reaction of MA and octadecanamine, dodecanamine and octylamine, respectively. Wet modification was used to treat the surface of nano-CaCO3 and PVC/ nano-CaCO3 composites were prepared. The influence of modified nano-CaCO3 with different modifiers on the mechanical properties of PVC composites was investigated systematically. The results show that three kinds of modifier can be combined with the surface of nano-CaCO3 well, and the nano-CaCO3 can be evenly dispersed in PVC. Modified nano-CaCO3 by three kinds of modifiers can dramatically increase the impact strength of the PVC composites, and the flexural strength and tensile strength of the PVC composites change slightly.