Study on Dynamic Interracial Tension Between C12NCl2 Aqueous Solution and n-decane
Abstract：The dynamic interracial tension （DIFT） of N,N＇-didodecyl-2-hydroxyl-N,N,N＇ ,N＇-tet- ramethyl dichloride （G12 NCl2） and n-decane system was measured by spinning drop method and the effect of surfactant concentration on the dynamic interfacial tension was investigated. The results show that, when the surfactant concentration is lower than cmc, the higher the concentration of surfactant is, the lower will be the curve of the DIFT,the slower will be the changing trend of DIFT, and the shorter will be the equilibrium time. When the surfactant concentration is above the crnc,the value of DIFT does not change basically with the time. Through the curves of DIFT,the cmc of G12NCl2 in water-decane sys- tem in different temperature is obtained and the cmc is much lower than that in water-air system.
Keywords：surfactantinterracial tensionn-decanecmcmicelle
Publication Date：2012-01-01
Online Publishing Date：2026-08-28(First online date of this platform, not the publication date of the document)
Pages：4( 39-42 )