Antonio Stocco
Particle-stabilised foams: an interfacial study
Stocco, Antonio; Drenckhan, Wiebke; Rio, Emanuelle; Langevin, Dominique; Binks, Bernard P.
Authors
Wiebke Drenckhan
Emanuelle Rio
Dominique Langevin
Professor Bernie Binks B.P.Binks@hull.ac.uk
Emeritus Professor of Physical Chemistry
Abstract
In an attempt to elucidate the remarkable stability of foams generated from dispersions of partially hydrophobic nanoparticles (fumed silica), we present investigations into the static and dilational properties of the gas-liquid interfaces of such dispersions. By relating the dynamic surface tension gamma(t) and the dilational elasticity E measured using an oscillating bubble device, we confirm that the Gibbs stability criterion E > gamma/2 against foam coarsening is fulfilled. We complement these studies using ellipsometry and Brewster angle microscopy, which provide evidence for a pronounced adsorption barrier for the particles and a network-like structure in the interface at sufficiently high concentrations. We observe this structure also in freely suspended films drawn from the same particle dispersions.
Citation
Stocco, A., Drenckhan, W., Rio, E., Langevin, D., & Binks, B. P. (2009). Particle-stabilised foams: an interfacial study. Soft matter, 5(11), 2215-2222. https://doi.org/10.1039/b901180c
Journal Article Type | Article |
---|---|
Acceptance Date | Mar 19, 2009 |
Online Publication Date | Apr 24, 2009 |
Publication Date | Jul 14, 2009 |
Journal | SOFT MATTER |
Print ISSN | 1744-683X |
Publisher | Royal Society of Chemistry |
Peer Reviewed | Peer Reviewed |
Volume | 5 |
Issue | 11 |
Pages | 2215-2222 |
DOI | https://doi.org/10.1039/b901180c |
Keywords | General Chemistry; Condensed Matter Physics |
Public URL | https://hull-repository.worktribe.com/output/391351 |
You might also like
Cholic Acid/Glutathione-Assembled Nanofibrils for Stabilizing Pickering Emulsion Biogels
(2024)
Journal Article
Competition between hydrogen bonding and electrostatic repulsion in pH-switchable emulsions
(2023)
Journal Article
Downloadable Citations
About Repository@Hull
Administrator e-mail: repository@hull.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search