摘要
论述了表面活性剂的润湿机理,测定了13种表面活性剂在不同浓度下的表面张力和0. 1%浓度下的界面张力,重点研究了氟碳两性表面活性剂F1157与非离子碳氢表面活性剂XL-50、TMN-6、APG-0810以及与甜菜碱类两性表面活性剂BS-8、BS-12、CAB的配伍增效能。从表面张力、界面张力和铺展面积得出最佳增效配比。当F1157和XL-50的质量比为1:(6~8)时,界面张力降至0. 4 m N/m;当F1157和TMN-6的质量比为1∶(6~10)时,界面张力降至0. 24 m N/m;当F1157和APG0810的质量比为1∶(3~10)时,界面张力降至0. 063 m N/m。F1157与碳氢甜菜碱的增效性表现在铺展面积优于非离子,同碳数的F1157和BS-8质量比为1∶5时,铺展面积达到最大值99 mm^2。为降低氟碳表面活性剂的使用成本、开拓新领域的应用提供参考。
Wetting mechanism was briefly discussed.Some kinds of surfactants,their surface tension with different concentration and interfacial tension with 0.1%concentration were measured.We mainly studied the synergic compatibility of amphoteric fluorocarbon surfactant F1157 with nonionic hydrocarbon surfactants XL-50,TMN-6,APG-0810 and betaine type amphoteric hydrocarbon surfactants BS-8,BS-12,CAB.We obtained the optimal proportion of compatibility of the blend systems in surface tension,interfacial tension and spreading area.The synergically compatible mass ratio of F1157 and XL-50 is in the range of 1∶6~1∶8,and the resulting system’s surface tension decreased to 0.4mN/m.The synergically compatible mass ratio of F1157 and TMN-6 is in the range of 1∶6~1∶10,and the resulting system’s surface tension is 0.24mN/m,and the synergically compatible mass ratio of F1157 and APG-0810 is in the range of 1∶3~1∶10,and the resulting system’s surface tension decreased to 0.063mN/m.Compared to a blend system of amphoteric fluorocarbon surfactant and nonionic hydrocarbon surfactants,the amphoteric fluorocarbon surfactant(F1157)and amphoteric hydrocarbon surfactants blend system is superior particularly in its spreading area.when the number of carbon molecules are identical,a blend system with a mass ratio of 1∶5 between F1157 and BS-8(an amphoteric hydrocarbon surfactant)can reach the maximum of 99 m^2 in its spreading area.The studies will provide guidance to the cost reduction and exploration of new application fields of fluorocarbon.
作者
李莉
李欢玲
韩从辉
郑小珊
罗晓放
Li Li;Li Huanling;Han Conghui;Zheng Xiaoshan;Luo Xiaofang(Guangdong Research Institute of Petrochemical and Fine Chemical Engineering Key Laboratory of Industrial Surfactants,Guangzhou 510665,China;School of Chemistry and Chemical Engineering,Guangzhou University,Guangzhou 510006,China)
出处
《有机氟工业》
CAS
2018年第3期1-7,共7页
Organo-Fluorine Industry
基金
广东省科学院创新平台能力提升项目(2016GDASPT-0217)
广东省科技厅农村科技领域项目(2014A020208084)
关键词
氟碳表面活性剂
低界面张力
润湿
铺展
协同增效
fluorocarbon surfactant
low interfacial tension
wettability
spreadability
synergistic effect
