Linear viscoelasticity of emulsions. Part 1. The effect of an interfacial film on the dynamic viscosity of nondilute emulsions
Journal Article
·
· J. Colloid Interface Sci.; (United States)
The dynamic viscosity of nondilute monodisperse emulsions is calculated by using a cell model. Two possibilities for describing the mechanical properties of the interfacial film between the internal and the external phase are considered: (a) the film is assigned a two-dimensional linear viscoelastic behavior and (b) the film is treated as a shell with finite thickness containing a Newtonian liquid. The resulting expressions for the dynamic viscosity show that model b has two relaxation times and model a has at least two or more. If a Voigt-Kelvin model is used to describe the interfacial rheology, model a will also have just two relaxation times. The results obtained may be used to interpret measurements on emulsions in terms of microscopic parameters of these emulsions. 23 references.
- OSTI ID:
- 5393221
- Journal Information:
- J. Colloid Interface Sci.; (United States), Journal Name: J. Colloid Interface Sci.; (United States) Vol. 84:1; ISSN JCISA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Foam rheology: the linear viscoelastic response of a spatially periodic model
Linear viscoelasticity of emulsions. Part 2. Measurements of the linear viscoelastic behavior of emulsions in the kilohertz range
Interfacial phenomena at fluid interfaces: interfacial viscosity and emulsion stability
Conference
·
Wed Dec 31 23:00:00 EST 1986
·
OSTI ID:6717281
Linear viscoelasticity of emulsions. Part 2. Measurements of the linear viscoelastic behavior of emulsions in the kilohertz range
Journal Article
·
Sat Oct 31 23:00:00 EST 1981
· J. Colloid Interface Sci.; (United States)
·
OSTI ID:5503491
Interfacial phenomena at fluid interfaces: interfacial viscosity and emulsion stability
Journal Article
·
Fri Sep 15 00:00:00 EDT 1972
· Am. Pet. Inst., Publ.; (United States)
·
OSTI ID:6884933