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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.


Jan Pelipenko, Julijana Kristl, Romana Rošic, Saša Baumgartner, Petra Kocbek. Interfacial rheology: an overview of measuring techniques and its role in dispersions and electrospinning. Acta pharmaceutica (Zagreb, Croatia). 2012 Jun;62(2):123-40

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PMID: 22750813

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