Rheological Behavior of Selected Water-Nonionic-Anionic Surfactant Quasi-ternary Systems

The results of studies on the rheological behavior of ternary mixtures comprising water, linear alkylbenzenesulfonic acid, and a non-ionic surfactant from a group comprising ethoxylated fatty acid methyl esters are presented in this paper. In the latter group, those examined include ethoxylated rapeseed and coconut fatty acid methyl esters, and ethoxylated lauryl acid methyl ester. The flowing curves, effect of temperature on viscosity, as well as the relationship between viscosity and composition of the examined ternary systems were studied. As a practical objective, the studies were intended to utilize the findings for optimizing unit operations which are applied in the process of technology to make washing powder formulations.