A Theoretical Study on Synergism in Nonideal Binary Mixtures of Surfactants*
- Received Date: 2001-03-14
Abstract: With the help of the phase separation model and the regular solution theory, on the basis of synergism conditions derived by Rubingh and Rosen, some synergism parameters in surface tension reduction effectiveness in binary mixed systems of surfactants are obtained, including the synergism condition (βs-βm<0), the optimum molar fractionα*1, the lowest surface tension of the mixtureγ*cmcand the corresponding critical micelle concentrationcmc12*at the point of maxi mum synergism. Application of these relationships to two binary systems of surfactants, C12NMe3Br~C12SO4Na and C12NMe3Br~C8SO4Na, shows both the systems to be consistent with observed data. This indicates that an easier and more accurate method on the study of synergism in nonideal binary mixed systems of surfactants has been obtained.
|Citation:||Wang Zhengwu, Li Ganzuo, Liu Juncheng, Guan Daren, Lou Anjing. A Theoretical Study on Synergism in Nonideal Binary Mixtures of Surfactants*[J]. Chinese Journal of Chemical Physics , 2001, 14(4): 426-432. doi: 10.1088/1674-0068/14/4/426-432|