Colloid-stabilized emulsions : behaviour as the interfacial tension is reduced

Title data

Clegg, Paul S. ; Herzig, Eva M. ; Schofield, Andrew B. ; Horozov, T. S. ; Binks, Bernard P. ; Cates, Michael E. ; Poon, Wilson C. K.:
Colloid-stabilized emulsions : behaviour as the interfacial tension is reduced.
In: Journal of Physics: Condensed Matter. Vol. 17 (2005) Issue 45 . - S3433.
ISSN 1361-648X
DOI: https://doi.org/10.1088/0953-8984/17/45/031

Official URL:

Abstract in another language

We present confocal microscopy studies of novel particle-stabilized emulsions. The novelty arises because the immiscible fluids have an accessible upper critical solution temperature. The emulsions have been created by beginning with particles dispersed in the single-fluid phase. On cooling, regions of the minority phase nucleate. While coarsening, these nuclei become coated with particles due to the associated reduction in interfacial energy. The resulting emulsion is arrested, and the particle-coated interfaces have intriguing properties. Having made use of the binary-fluid phase diagram to create the emulsion we then make use of it to study the properties of the interfaces. As the emulsion is re-heated toward the single-fluid phase the interfacial tension falls and the volume of the dispersed phase drops. Crumpling, fracture or coalescence can follow. The results show that the elasticity of the interfaces has a controlling influence over the emulsion behaviour.

Further data

Item Type:	Article in a journal
Refereed:	Yes
Institutions of the University:	Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Juniorprofessor Experimental Physics VII - Dynamics and Structure Formation > Juniorprofessor Experimental Physics VII - Dynamics and Structure Formation - Juniorprof. Dr. Eva M. Herzig Faculties Faculties > Faculty of Mathematics, Physics und Computer Science Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Juniorprofessor Experimental Physics VII - Dynamics and Structure Formation
Result of work at the UBT:	No
DDC Subjects:	500 Science > 530 Physics
Date Deposited:	06 Oct 2017 10:00
Last Modified:	09 Oct 2023 12:58
URI:	https://eref.uni-bayreuth.de/id/eprint/39921