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.
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)
出处
《山东化工》
CAS
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)。
关键词
纳米碳酸钙
临界胶束浓度
表面改性
触变性
nano-CaCO 3
critical micellar concentration
surface modification
thixotropy