Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Contact line friction in liquid-liquid displacement on hydrophobic surfaces

    Access Status
    Fulltext not available
    Authors
    Ramiasa, M.
    Ralston, J.
    Fetzer, R.
    Sedev, Rossen
    Date
    2011
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Ramiasa, M. and Ralston, J. and Fetzer, R. and Sedev, R. 2011. Contact line friction in liquid-liquid displacement on hydrophobic surfaces. Journal of Physical Chemistry C. 115 (50): pp. 24975-24986.
    Source Title
    Journal of Physical Chemistry C
    DOI
    10.1021/jp209140a
    ISSN
    1932-7447
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/54814
    Collection
    • Curtin Research Publications
    Abstract

    The dynamics of a receding water front displaced by (a) an immiscible droplet of dodecane and (b) an air bubble on smooth thiol and silane coated substrates has been investigated. For velocities below 0.02 m/s, the three phase contact line motion is captured by the molecular kinetic theory. The corresponding wetting parameters show a dependence on surface hydrophobicity, irrespective of the substrate chemistry. The contact line frictions for both liquid-liquid and liquid-vapor systems are directly compared by using an existing approach and a new model that adds the contributions of the individual fluid viscosities. For both systems, the contact line friction increases with the affinity of the fluids for the substrate. Three phase contact line motion occurs via the concerted movement of clusters of molecules or contact line segments, rather than through individual molecular displacements.

    Related items

    Showing items related by title, author, creator and subject.

    • Contact line motion on nanorough surfaces: A thermally activated process
      Ramiasa, M.; Ralston, J.; Fetzer, R.; Sedev, Rossen; Fopp-Spori, D.; Morhard, C.; Pacholski, C.; Spatz, J. (2013)
      The motion of a solid-liquid-liquid contact line over nanorough surfaces is investigated. The surface nanodefects are varied in size, density, and shape. The dynamics of the three-phase contact line on all nanorough ...
    • Electrowetting of ionic liquids on teflon AF1600 in ambient hexadecane
      Paneru, M.; Priest, C.; Ralston, J.; Sedev, Rossen (2012)
      A droplet of ionic liquid is immersed in an immiscible liquid (n-hexadecane) and electrowetted on a flat electrode insulated with Teflon AF1600. Two series of ionic liquids were studied: 1-alkyl-3-methylimidazolium ...
    • Dynamic electrowetting and dewetting of ionic liquids at a hydrophobic solid-liquid interface
      Li, H.; Paneru, M.; Sedev, Rossen; Ralston, J. (2013)
      The dynamic electrowetting and dewetting of ionic liquids are investigated with high-speed video microscopy. Five imidazolium-based ionic liquids ([BMIM]BF4, [BMIM]PF6, [BMIM]NTf2, [HMIM]NTf2, and [OMIM]BF4) are used as ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.