Product Manager Indorama Hattiesburg, Mississippi, United States
Abstract: Microemulsion “fish” phase diagrams of surfactant-oil-water (SOW) systems are commonly used to determine the optimal surfactant concentration for microemulsion stability under a given set of experimental conditions (oil type, temperature, etc.). These “fish” diagrams are commonly obtained via the visual observation of static salinity-induced phase behavior experiments, which can be tedious and timely, especially with high surfactant concentrations as viscous gels commonly form. In this presentation, we discuss the use of dynamic salinity-induced phase-inversion (Dy-SPI) conductivity measurements as an effective method to determine the optimal surfactant concentration for alcohol ethoxylate based Surfactant-Oil-Water (SOW) systems. The effect of the identity and distribution of alcohol ethoxylates (i.e. broad range vs narrow range) on the emulsion stability will also be explored.
