Viscoelastic properties of a soap-stabilized oil-in-water emulsion
The viscoelastic properties of dilute flocculated paraffin oil-in-water emulsions stabilized by 5% potassium laurate have been measured using a method based on oscillatory flow in small tubes. Viscosity and elasticity were found to increase exponentially with volume fraction of dispersed oil. The ratio of the elastic energy storage to viscous energy dissipation at 2 Hz shows a maximum for an oil volume fraction of 0.2, the relaxation time for the emulsion under these conditions being 0.08 sec. An estimate of the strength of the forces which hold the emulsion particles together has been obtained from oscillatory measurements at large amplitudes. The results are discussed in terms of the known relations between colloid stability and rheological properties. 17 references.
- OSTI ID:
- 6801707
- Journal Information:
- J. Colloid Interface Sci.; (United States), Journal Name: J. Colloid Interface Sci.; (United States) Vol. 69:2; ISSN JCISA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
023000* -- Petroleum-- Properties & Composition
ALKANES
COLLOIDS
DISPERSIONS
ELASTICITY
EMULSIONS
ENERGY SOURCES
FLUID INJECTION
FOSSIL FUELS
FUELS
HYDROCARBONS
HYDROGEN COMPOUNDS
MEASURING METHODS
MECHANICAL PROPERTIES
MICROEMULSION FLOODING
MISCIBLE-PHASE DISPLACEMENT
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM
RHEOLOGY
STABILITY
TENSILE PROPERTIES
VISCOSITY
WATER