Jump to main content
Jump to site search

Issue 30, 2016
Previous Article Next Article

Steady-state droplet size in montmorillonite stabilised emulsions

Author affiliations

Abstract

The formation of hexadecane-in-water emulsions stabilised by montmorillonite platelets was studied. In this system the platelets form a monolayer around the droplets and the droplet size decreases with increasing platelet volume fraction. However, the number of platelets present exceeds that required for monolayer coverage. The kinetics of emulsification were investigated and coalescence of droplets during turbulent mixing was found to continue even after the droplets had reached their ultimate size. Non-spherical droplets, resulting from arrested coalescence, were not observed suggesting that particles may be desorbing from the interface during the turbulent flow. A kinetic model based on a competition between droplet break-up and coalescence, mediated by particle adsorption and desorption, reproduces experimental trends in droplet diameter. The model can be used to predict the most efficient formulation to minimise droplet diameters for given materials and mixing conditions and sheds light on the processes occurring during emulsification in this system.

Graphical abstract: Steady-state droplet size in montmorillonite stabilised emulsions

Back to tab navigation

Supplementary files

Publication details

The article was received on 16 Jun 2016, accepted on 01 Jul 2016 and first published on 04 Jul 2016


Article type: Paper
DOI: 10.1039/C6SM01377E
Soft Matter, 2016,12, 6481-6489
  • Open access: Creative Commons BY license
  •   Request permissions

    Steady-state droplet size in montmorillonite stabilised emulsions

    W. J. Ganley and J. S. van Duijneveldt, Soft Matter, 2016, 12, 6481
    DOI: 10.1039/C6SM01377E

    This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements