胶束改性纳米碳酸钙及其填充增塑糊触变性能研究  

Study on Modification of Nano-CaCO 3 with Micelles and Its Thixotropy in Plastisol Filling

作　　者：李仁才 文庆福 王珠先 朱勇 黄媛珍 Li Rencai;Wen Qingfu;Wang Zhuxian;Zhu Yong;Huang Yuanzhen(Guangxi Huana New Materials Co.,Ltd.,Nanning 530103,China)

机构地区：[1]广西华纳新材料股份有限公司,广西南宁530103

出　　处：《山东化工》2023年第8期5-9,共5页Shandong Chemical Industry

基　　金：2021年南宁市科技计划项目(20211116)。

摘　　要：采用月桂酸钾对纳米碳酸钙表面改性,利用电导法测量了月桂酸钾临界胶束浓度为0.015 mol·dm^(-3)。考察了临界胶束浓度附近改性效果,利用水分测试、热重分析、TOC、扫描电镜、红外光谱、接触角、流变仪等测试手段对纳米碳酸钙和填充增塑糊进行表征。临界胶束浓度附近表面改性的纳米碳酸钙水分最低,相应的填充增塑糊制品触变效果最好,浓度提高会使触变性变差,屈服应力下降。The critical micellar concentration of potassium laurate was about 0.015 mol·dm-3 measured by conductivity method.The modification effect nearby the critical micellar concentration was investigated.The nano-CaCO 3 and the plastisol were characterized by moisture,TG,TOC,SEM,FT-IR,Measurement of contact angle and rheometer.Under the critical micellar concentration modification,the nano-CaCO 3 has the lowest moisture,and the plastisol filled with it has the best thixotropy.The increase of the concentration to modification will make the plastisol’s thixotropy worse and the yield stress decrease.

关 键 词：纳米碳酸钙 临界胶束浓度 表面改性 触变性 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]