Review article

https://doi.org/10.2478/v10007-012-0018-x

Interfacial rheology: An overview of measuring techniques and its role in dispersions and electrospinning

JAN PELIPENKO ; University of Ljubljana, Faculty of Pharmacy, Ljubljana, Slovenia
JULIJANA KRISTL ; University of Ljubljana, Faculty of Pharmacy, Ljubljana, Slovenia
ROMANA ROŠIC ; University of Ljubljana, Faculty of Pharmacy, Ljubljana, Slovenia
SAŠA BAUMGARTNER ; University of Ljubljana, Faculty of Pharmacy, Ljubljana, Slovenia
PETRA KOCBEK ; University of Ljubljana, Faculty of Pharmacy, Ljubljana, Slovenia

Abstract

Interfacial rheological properties have yet to be thoroughly explored. Only recently, methods have been introduced that provide sufficient sensitivity to reliably determine viscoelastic interfacial properties. In general, interfacial rheology describes the relationship between the deformation of an interface and the stresses exerted on it. Due to the variety in deformations of the interfacial layer (shear and expansions or compressions), the field of interfacial rheology is divided into the subcategories of shear and dilatational rheology. While shear rheology is primarily linked to the long-term stability of dispersions, dilatational rheology provides information regarding short-term stability. Interfacial rheological characteristics become relevant in systems with large interfacial areas, such as emulsions and foams, and in processes that lead to a large increase in the interfacial area such as electrospinning of nanofibers.

Keywords

interfacial rheology; emulsions; foams; electrospinning; nanofibers; nanotechnology

Hrčak ID:

78869

URI

https://hrcak.srce.hr/78869

Publication date:

30.6.2012.

Article data in other languages: slovenian

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