Journal article
The importance of experimental design on measurement of dynamic interfacial tension and interfacial rheology in diffusion-limited surfactant systems
Colloids and surfaces. A, Physicochemical and engineering aspects, v 467, pp 135-142
20 Feb 2015
Abstract
•Guidelines for design of interfacial rheology measurements that incorporate curvature and surfactant isotherm.•Interfacial mechanics using a pendant drop/bubble.•Scaling to design dynamic interfacial tension experiments on curved interfaces.•Demonstration of scaling using experiments and simulations.
Pendant bubble and drop devices are invaluable tools in understanding surfactant behavior at fluid–fluid interfaces. The simple instrumentation and analysis are used widely to determine adsorption isotherms, transport parameters, and interfacial rheology. However, much of the analysis performed is developed for planar interfaces. The application of a planar analysis to drops and bubbles (curved interfaces) can lead to erroneous and unphysical results. We revisit this analysis for a well-studied surfactant system at air–water interfaces over a wide range of curvatures as applied to both expansion/contraction experiments and interfacial elasticity measurements. The impact of curvature and transport on measured properties is quantified and compared to other scaling relationships in the literature. The results provide tools to design interfacial experiments for accurate determination of isotherm, transport and elastic properties.
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Details
- Title
- The importance of experimental design on measurement of dynamic interfacial tension and interfacial rheology in diffusion-limited surfactant systems
- Creators
- Matthew D. Reichert - Carnegie Mellon UniversityNicolas J. Alvarez - Carnegie Mellon UniversityCarlton F. Brooks - Sandia National LaboratoriesAnne M. Grillet - Sandia National LaboratoriesLisa A. Mondy - Sandia National LaboratoriesShelley L. Anna - Carnegie Mellon UniversityLynn M. Walker - Carnegie Mellon University
- Publication Details
- Colloids and surfaces. A, Physicochemical and engineering aspects, v 467, pp 135-142
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemical and Biological Engineering
- Web of Science ID
- WOS:000347617900014
- Scopus ID
- 2-s2.0-84916887238
- Other Identifier
- 991019292221404721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Chemistry, Physical