Field-induced breakup of emulsion droplets stabilized by colloidal particles

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We simulate the response of a particle-stabilized emulsion droplet in an external force field, such as gravity, acting equally on all N particles. We show that the field strength required for breakup (at fixed initial area fraction) decreases markedly with droplet size, because the forces act cumulatively, not individually, to detach the interfacial particles. The breakup mode involves the collective destabilization of a solidified particle raft occupying the lower part of the droplet, leading to a critical force per particle that scales approximately as N-1/2.

Original languageEnglish
Article number020403
Pages (from-to)-
Number of pages4
JournalPhysical Review E
Issue number2
Publication statusPublished - 24 Feb 2012


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