烷氧基化十四酸乙醇酰胺磺基琥珀酸单酯钠盐的表面活性研究

研究了乙氧基化和丙氧基化十四酸乙醇酰胺磺基琥珀单酯钠盐的表面活性,结果表明,随烷氧基加聚数的增加,临界胶束浓度减小而最小表面张力增大,乙氧基化物的润湿力迅速下降,而丙氧基化物的润湿力趋于增强,二者的起泡力都下降,而泡沫稳定性都较高,变化不显著,前得的润车不及后者,二者起泡力及泡沫稳定性的差别不显著。

Surface Active Properties of Disodium Alkoxylated Tetradecanoic Acid Ethanolamide Sulfosuccinates

Surface active properties of disodium ethoxylated and propoxylated tetradecanoic acid ethanolande sulfosuccinates were investigated. It had been found that with the increase in the polymerization number of ethylene oxideor propylene oxide,the critical micelle concentration decreased and the critical surface tension increased,the wettingpower of the ethoxylated product reduced fast whereas that of the propoxylated product tended to increase,the foaming ability of both products reduced,the foam stability was high and its variation was less remarkable. The propoxylated product was superior in wetting power,while their differences in foaming ability and foam stability were insignificant.