两性氟碳/碳氢表面活性剂复配体系的润湿性能

Wettability of Amphoteric Fluorocarbon Surfactant/Hydrocarbon Surfactants Blend Systems

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.