Size selection in viscoelastic emulsions under shear

Citation
X. Zhao et Jl. Goveas, Size selection in viscoelastic emulsions under shear, LANGMUIR, 17(13), 2001, pp. 3788-3791
Citations number
15
Language
INGLESE
art.tipo
Letter
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
LANGMUIR
ISSN journal
0743-7463 → ACNP
Volume
17
Issue
13
Year of publication
2001
Pages
3788 - 3791
Database
ISI
SICI code
0743-7463(20010626)17:13<3788:SSIVEU>2.0.ZU;2-Q
Abstract
We investigate the deformation of a dilute emulsion with a viscoelastic con tinuous phase under shear flow. Initially, polydisperse drops are deformed into thin cylinders. The breakup of these liquid cylinders appears to be su ppressed until they reach a certain width. The resulting ruptured drops are uniform along the length of the cylinder. As a control, we also study drop breakup for a Newtonian emulsion, at a similar viscosity ratio. In this ca se, there is no corresponding size selection for the cylinder radius or dau ghter drops.