Abstract
In the present study, binary mixtures of sodium N-lauroylglutamate (SLG) and dodecyltrimethylammonium chloride (DTAC) or dodecylbetaine (BS-12) were examined for their synergistic effect. The surface chemical properties of the compound systems with different molar ratios were determined by the regular solution theory. Results indicated that both compound systems show synergistic effects of overall synergy, in which the SLG/DTAC system exhibited a better activity than the SLG/BS-12 system. The aggregation number of SLG compound systems was smaller than that of single surfactants, and the difference of the proportion of the two surfactants had little effect on the aggregation number of compound systems.
Abstract
In der vorliegenden Studie wurden binäre Mischsysteme aus Natrium-N-lauroylglutamat (SLG) und Dodecyltrimethylammoniumchlorid (DTAC) bzw. Dodecylbetain (BS-12) hinsichtlich ihrer synergistischen Wirkung untersucht. Die oberflächenchemischen Eigenschaften der Mischsysteme wurden bei unterschiedlichen Molverhältnissen mit der regulären Lösungstheorie bestimmt. Die Ergebnisse deuteten darauf hin, dass beide Mischsysteme synergistische Effekte zeigen, wobei das SLG/DTAC-System eine bessere Aktivität als das SLG/BS-12-System aufwies. Die Aggregationszahl der SLG-Mischsysteme war kleiner als die der einzelnen Tenside, und der Unterschied des Anteils der beiden Tenside hatte wenig Einfluss auf die Aggregationszahl der Verbundsysteme.
About the authors
Binbin He is a graduate student at Jiangnan University. He researches on the direction of surfactants and fine Chemicals.
Liangliang Lin went to the University of Eindhoven, the Netherlands, to pursue a Ph.D. in chemical engineering.He received his Ph.D. in 2018 and later joined the School of Chemistry and Materials Engineering at Jiangnan University. He has published several papers in the internationally renowned chemical journals such as AIChE Journal, Chemical Engineering Science, Chemical Engineering Journal, etc.
Hujun Xu is a professor of Jiangnan University, P. R. China. He received his Ph.D. degree in 2005 from Nanjing University of Science and Technology, P. R. China. He has been involved in surfactants and detergents for over 30 years. He has published over 60 papers in the field of surfactants and detergents.
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