文献类型：期刊文献

中文题名：纳米碳酸钙的改性及应用于聚氯乙烯的研究

英文题名：Modification of the Nano-CaCO_3 and Its Application in PVC

作者：周朋朋[1];栾英豪[1];马新胜[1]

机构：[1]华东理工大学超细粉末国家工程研究中心,上海200237

年份：2014

卷号：42

期号：4

起止页码：89

中文期刊名：塑料工业

外文期刊名：China Plastics Industry

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD2013_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：邻苯二甲酸酐;酯化;纳米碳酸钙;聚氯乙烯

外文关键词：Phthalic Anhydride ; Esterification ; Nano-Calcium Carbonate ; PVC

摘要：为了提高纳米碳酸钙在聚氯乙烯(PVC)基体中的分散性和相容性,分别采用邻苯二甲酸酐与丁醇、辛醇、十六醇、二乙二醇丁醚单酯化制得邻苯二甲酸单酯,再用氢氧化钠溶液中和,得到邻苯二甲酸酐单酯化钠盐,再以其作为表面改性剂,采用湿法对纳米碳酸钙进行表面处理后,添加到PVC中制备了PVC/纳米碳酸钙复合材料。通过力学性能测试、转矩流变仪和扫描电子显微镜研究了改性纳米碳酸钙对PVC力学和加工性能的影响。结果表明,PVC/纳米碳酸钙复合材料的冲击强度随着改性剂中有机基团的碳链长度的增加而增大,另外,当改性剂中的有机基团具有一定的极性,PVC复合材料的综合性能更佳。
To improve the dispersion and compatibility of nano-CaCO3 in PVC （polyvinyl chloride ） matrix, PAMs were synthesized respectively by single esterification with the phthalic anhydride and butyl alcohol, octanol, cetyl alcohol, diethylene glycol monobutyl ether, and the corresponding phthalic acid single esterification sodium salt was prepared with phthalic acid monoester （PAM） adding with right amount of NaOH aqueous solution. Wet modification was used to treat the surface of nano-caleium carbonate which was then added into PVC matrix to study the properties of PVC. Through mechanical testing, torque rheometer and SEM, the effect of nano-CaCO3 on the mechanical and processing properties of PVC was studied. It could conclude that the impact strength of PVC/nano-CaCO3 composites increased with the length increasing of carbon chain and the PVC composite had a better performance if the organic group in the modifiers had a certain polarity.