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  • Oscillating sessile liquid marble - A tool to assess effective surface tension

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    Embargoed until: 2023-07-14
    File version
    Accepted Manuscript (AM)
    Author(s)
    Singha, Pradip
    Nguyen, Nhat-Khuong
    Zhang, Jun
    Nguyen, Nam-Trung
    Ooi, Chin Hong
    Griffith University Author(s)
    Ooi, Chin Hong
    Nguyen, Nhat Khuong
    Zhang, Jun
    Nguyen, Nam-Trung
    Singha, Pradip
    Year published
    2021
    Metadata
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    Abstract
    A long-standing problem of liquid-marble based technology is the inconsistency of the effective surface tension values. This inconsistency could be due to particle size, particle type, volume of the liquid marble or the preparation method. The prevailing liquid marble preparation method is to roll a droplet on a powder bed. The lack of control of rolling duration or revolution speed could contribute to the inconsistent effective surface tension values. We hypothesize that a systematic preparation approach could improve the consistency of the effective surface tension values. In this work, we (i) determine the effective surface ...
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    A long-standing problem of liquid-marble based technology is the inconsistency of the effective surface tension values. This inconsistency could be due to particle size, particle type, volume of the liquid marble or the preparation method. The prevailing liquid marble preparation method is to roll a droplet on a powder bed. The lack of control of rolling duration or revolution speed could contribute to the inconsistent effective surface tension values. We hypothesize that a systematic preparation approach could improve the consistency of the effective surface tension values. In this work, we (i) determine the effective surface tension using the natural oscillation of a sessile liquid marble and (ii) investigate the effects of liquid marble preparation methods on the effective surface tension for the first time. We find that the effective surface tension values of a liquid marble prepared manually are inconsistent. In comparison, a systematic preparation method improves the consistency of the measured effective surface tension values. Interestingly, the systematic preparation at higher revolution speed causes interfacial jamming at the liquid marble shell which decreases the consistency. The results from this work can provide a deeper understanding of the fundamental characteristics of liquid marbles.
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    Journal Title
    Colloids and Surfaces A: Physicochemical and Engineering Aspects
    Volume
    627
    DOI
    https://doi.org/10.1016/j.colsurfa.2021.127176
    Copyright Statement
    © 2021 Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence (http://creativecommons.org/licenses/by-nc-nd/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, providing that the work is properly cited.
    Subject
    Physical sciences
    Chemical sciences
    Engineering
    Publication URI
    http://hdl.handle.net/10072/406449
    Collection
    • Journal articles

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