Relation of phase behavior to interfacial tensions in mixed surfactant systems

Conference · Sun Jan 01 04:00:00 EST 1978

OSTI ID:5932308

Franses, E I; Puig, J E; Davis, H T; Miller, W G; Scriven, L E

The phase behavior and tension behavior of a model surfactant mixture (sodium 8-phenyl-n-hexadecyl-p-sulfonate and sodium dodecyl sulfate (SDS)) are reported on. The main objective of the study was to determine whether or not micelles are related to the ultralow tensions that are observed. Results of the study indicate that micelles are not related to the ultralow tension state. Their presence can merely change the amount of dispersed liquid crystal. Increasing activity of SDS in water, and not total concentration or total weight ratio, appears to be related to low tensions. All evidence leads to the conclusion that the SDS enters the hydrated liquid crystals in the aqueous suspension, and the liquid crystalline middle phase which forms with added decane.

• Research Organization: Minnesota Univ., Minneapolis (USA)
• OSTI ID: 5932308
• Report Number(s): CONF-781110-17
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
DISPERSIONS
ENERGY SOURCES
ENHANCED RECOVERY
ESTERS
FLUID INJECTION
FOSSIL FUELS
FUELS
INTERFACES
MICELLAR SYSTEMS
MIXTURES
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PETROLEUM
PETROLEUM SULFONATES
PHASE STUDIES
SULFONATES
SULFONIC ACID ESTERS
SURFACE PROPERTIES
SURFACE TENSION
SURFACTANTS
WATERFLOODING