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Article: Effects of particle size on the electrocoalescence dynamics and arrested morphology of liquid marbles

TitleEffects of particle size on the electrocoalescence dynamics and arrested morphology of liquid marbles
Authors
KeywordsArrested structure
Coalescence
Liquid marble
Issue Date15-Feb-2022
PublisherElsevier
Citation
Journal of Colloid and Interface Science, 2022, v. 608, p. 1094-1104 How to Cite?
Abstract

Hypothesis: The coalescence of bare droplets when surface tension dominates always results in one larger spherical droplet. In contrast, droplets coated with particles may be stabilized into non-spherical structures after arrested coalescence, which can be achieved by different approaches, such as changing the particle surface coverage. The size of particles coating the initial liquid marbles can be used to control the coalescence dynamics and the resulting morphology of arrested droplets. Experiment: We characterized the electrocoalescence of liquid marbles coated with particles ranging from hundred nanometers to hundred micrometers. The electrocoalescence was recorded using high-speed imaging. Findings: When the electrocoalescence initiates, particles jam and halt the relaxation of the marbles at different stages, resulting in four possible final morphologies that are characterized using the Gaussian curvature at the neck region. The four regimes are total coalescence, arrested puddle coalescence, arrested saddle coalescence, and non-coalescence. The coalescence is initiated at the center of the contact zone, independent of the particle size. Small particles show little resistance to the coalescence, while marbles coated by large particles demonstrate a viscous-like behavior, indicated by the growth of the liquid bridge and the damping. The present study provides guidelines for applications that involve the formulation of liquid marbles with complex morphologies.


Persistent Identifierhttp://hdl.handle.net/10722/340934
ISSN
2023 Impact Factor: 9.4
2023 SCImago Journal Rankings: 1.760
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhang, Y-
dc.contributor.authorYang, C-
dc.contributor.authorYuan, S-
dc.contributor.authorYao, X-
dc.contributor.authorChao, Y-
dc.contributor.authorCao, Y-
dc.contributor.authorSong, Q-
dc.contributor.authorSauret, A-
dc.contributor.authorBinks, BP-
dc.contributor.authorShum, HC-
dc.date.accessioned2024-03-11T10:48:24Z-
dc.date.available2024-03-11T10:48:24Z-
dc.date.issued2022-02-15-
dc.identifier.citationJournal of Colloid and Interface Science, 2022, v. 608, p. 1094-1104-
dc.identifier.issn0021-9797-
dc.identifier.urihttp://hdl.handle.net/10722/340934-
dc.description.abstract<p>Hypothesis: The coalescence of bare droplets when surface tension dominates always results in one larger spherical droplet. In contrast, droplets coated with particles may be stabilized into non-spherical structures after arrested coalescence, which can be achieved by different approaches, such as changing the particle surface coverage. The size of particles coating the initial liquid marbles can be used to control the coalescence dynamics and the resulting morphology of arrested droplets. Experiment: We characterized the electrocoalescence of liquid marbles coated with particles ranging from hundred nanometers to hundred micrometers. The electrocoalescence was recorded using high-speed imaging. Findings: When the electrocoalescence initiates, particles jam and halt the relaxation of the marbles at different stages, resulting in four possible final morphologies that are characterized using the Gaussian curvature at the neck region. The four regimes are total coalescence, arrested puddle coalescence, arrested saddle coalescence, and non-coalescence. The coalescence is initiated at the center of the contact zone, independent of the particle size. Small particles show little resistance to the coalescence, while marbles coated by large particles demonstrate a viscous-like behavior, indicated by the growth of the liquid bridge and the damping. The present study provides guidelines for applications that involve the formulation of liquid marbles with complex morphologies.</p>-
dc.languageeng-
dc.publisherElsevier-
dc.relation.ispartofJournal of Colloid and Interface Science-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectArrested structure-
dc.subjectCoalescence-
dc.subjectLiquid marble-
dc.titleEffects of particle size on the electrocoalescence dynamics and arrested morphology of liquid marbles-
dc.typeArticle-
dc.identifier.doi10.1016/j.jcis.2021.09.187-
dc.identifier.scopuseid_2-s2.0-85117808861-
dc.identifier.volume608-
dc.identifier.spage1094-
dc.identifier.epage1104-
dc.identifier.eissn0021-9797-
dc.identifier.isiWOS:000744244400002-
dc.identifier.issnl0021-9797-

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