Trivikram Nallamilli
Stabilization of Pickering Emulsions with Oppositely Charged Latex Particles: Influence of Various Parameters and Particle Arrangement around Droplets
Nallamilli, Trivikram; Binks, Bernard P.; Mani, Ethayaraja; Basavaraj, Madivala G.
Authors
Professor Bernie Binks B.P.Binks@hull.ac.uk
Emeritus Professor of Physical Chemistry
Ethayaraja Mani
Madivala G. Basavaraj
Abstract
© 2015 American Chemical Society. In this study we explore the fundamental aspects of Pickering emulsions stabilized by oppositely charged particles. Using oppositely charged latex particles as a model system, Pickering emulsions with good long-term stability can be obtained without the need for any electrolyte. The effects of parameters like oil to water ratio, mixed particle composition, and pH on emulsion type and stability are explored and linked to the behavior of the aqueous particle dispersion prior to emulsification. The particle composition is found to affect the formation of emulsions, viz., stable emulsions were obtained close to a particle number ratio of 1:1, and no emulsion was formed with either positively or negatively charged particles alone. The emulsions in particle mixtures exhibited phase inversion from oil-in-water to water-in-oil beyond an oil volume fraction of 0.8. Morphological features of emulsion droplets in terms of particle arrangement on the droplets are discussed.
Citation
Nallamilli, T., Binks, B. P., Mani, E., & Basavaraj, M. G. (2015). Stabilization of Pickering Emulsions with Oppositely Charged Latex Particles: Influence of Various Parameters and Particle Arrangement around Droplets. Langmuir : the ACS journal of surfaces and colloids, 31(41), 11200-11208. https://doi.org/10.1021/acs.langmuir.5b02443
Journal Article Type | Article |
---|---|
Acceptance Date | Jul 2, 2015 |
Online Publication Date | Sep 27, 2015 |
Publication Date | Oct 20, 2015 |
Deposit Date | Oct 29, 2015 |
Publicly Available Date | Nov 23, 2017 |
Journal | Langmuir |
Print ISSN | 0743-7463 |
Publisher | American Chemical Society |
Peer Reviewed | Peer Reviewed |
Volume | 31 |
Issue | 41 |
Pages | 11200-11208 |
DOI | https://doi.org/10.1021/acs.langmuir.5b02443 |
Keywords | Pickering emulsion; Oppositely charged particles; Heteroaggregation; Limited coalescence; Zeta potential |
Public URL | https://hull-repository.worktribe.com/output/380549 |
Publisher URL | http://pubs.acs.org/doi/10.1021/acs.langmuir.5b02443 |
Additional Information | This document is the Accepted Manuscript version of a Published Work that appeared in final form in Langmuir, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://dx.doi.org/10.1021/acs.langmuir.5b02443 . |
Contract Date | Nov 23, 2017 |
Files
Article.pdf
(1.1 Mb)
PDF
Copyright Statement
©2016 University of Hull
Supplementary_Information.pdf
(891 Kb)
PDF
Copyright Statement
©2016 University of Hull
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