Molecular Dynamics Simulation of Adsorption from Microemulsions and Surfactant Micellar Solutions at Solid-Liquid and Liquid-Liquid Interfaces

摘要

In enhanced oil recovery, the production is influenced by the ability of injected surfactants to adsorb and to modify interfacial tension at different interfaces. It has previously been demonstrated that surfactant and microemulsion additives enhance the production to a different extent but the mechanisms behind the differences in their action are not fully understood. Recent molecular dynamics simulation shows that the adsorption at a solid surface differs for these two systems. Furthermore, it shows that the solvent solubilized in a microemulsion is transported to the solid surface together with the surfactant, and hence the surface modification can be controlled by designing the chemistry and composition of the self-assembled structure.