Production of solid-stabilised emulsions through rotational membrane emulsification: Influence of particle adsorption kinetics

Manga, Mohamed S., Cayre, Olivier J., Williams, Richard A., Biggs, Simon and York, David W. (2012) Production of solid-stabilised emulsions through rotational membrane emulsification: Influence of particle adsorption kinetics. Soft Matter, 8 5: 1532-1538. doi:10.1039/c1sm06547e


Author Manga, Mohamed S.
Cayre, Olivier J.
Williams, Richard A.
Biggs, Simon
York, David W.
Title Production of solid-stabilised emulsions through rotational membrane emulsification: Influence of particle adsorption kinetics
Journal name Soft Matter   Check publisher's open access policy
ISSN 1744-683X
1744-6848
Publication date 2012-02-07
Year available 2012
Sub-type Article (original research)
DOI 10.1039/c1sm06547e
Open Access Status Not Open Access
Volume 8
Issue 5
Start page 1532
End page 1538
Total pages 7
Place of publication Cambridge, United Kingdom
Publisher Royal Society of Chemistry
Language eng
Abstract There is currently a significant interest in the production of stable emulsions using particulate emulsifiers. A key design and manufacturing challenge in such systems is the production of emulsions with controlled droplet sizes and narrow polydispersity; one candidate production technique is membrane emulsification. In this study we demonstrate that under optimal conditions, highly stable near monodisperse tricaprylin droplets stabilised with 800 nm silica colloids can be achieved using Rotating Membrane Emulsification (RME). We report the influence of various mechanical and chemical parameters on the droplet sizes and size distributions. The optimal conditions for highly stable emulsions with narrow size distributions using the RME approach are described. Investigating the rotational speed and particle concentration in particular highlights the importance of particle adsorption kinetics onto a growing droplet on the detachment of that droplet from the membrane. The data clearly show that if the particles attach and adsorb to the interface before a critical droplet detachment time, stable monodisperse droplets are produced. However, if the adsorption time takes longer than this critical value, the partially stabilized droplets can coalesce and we observe a wider size distribution.
Keyword Chemistry, Physical
Materials Science, Multidisciplinary
Physics, Multidisciplinary
Polymer Science
Chemistry
Materials Science
Physics
Polymer Science
CHEMISTRY, PHYSICAL
MATERIALS SCIENCE, MULTIDISCIPLINARY
PHYSICS, MULTIDISCIPLINARY
POLYMER SCIENCE
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Faculty of Engineering, Architecture and Information Technology Publications
 
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