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Liquid marbles stabilized by graphite particles from aqueous surfactant solutions

Doganci, Merve D.; Sesli, Belma U.; Erbil, H. Yildirim; Salama, Ibrahim E.; Binks, Bernard P.

Authors

Merve D. Doganci

Belma U. Sesli

H. Yildirim Erbil

Ibrahim E. Salama



Abstract

When a hydrophobic powder encapsulates a liquid drop, it forms a liquid marble which is non-wetting and behaves as a micro-reservoir of the liquid able to move without any leakage. In this work, we successfully prepared liquid marbles by encapsulating graphite micropowder on aqueous sodium dodecyl sulfate (SDS) droplets and determined their total evaporation and buckling periods in a closed chamber having constant relative humidity and temperature. The evaporation rates of graphite liquid marbles obtained from SDS solutions were compared with the rates of graphite liquid marbles from pure water and also with aqueous SDS droplets in the same conditions. The effects of SDS adsorption at the graphite-water and air-water interfaces on the formation and evaporation behavior of graphite liquid marbles are discussed. (C) 2011 Elsevier B.V. All rights reserved.

Journal Article Type Article
Publication Date 2011-07
Journal COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Print ISSN 0927-7757
Electronic ISSN 1873-4359
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 384
Issue 1-3
Pages 417-426
APA6 Citation Doganci, M. D., Sesli, B. U., Erbil, H. Y., Salama, I. E., & Binks, B. P. (2011). Liquid marbles stabilized by graphite particles from aqueous surfactant solutions. Colloids and surfaces. A, Physicochemical and engineering aspects, 384(1-3), (417-426). doi:10.1016/j.colsurfa.2011.04.027. ISSN 0927-7757
DOI https://doi.org/10.1016/j.colsurfa.2011.04.027
Keywords Liquid marbles Sodium dodecyl sulfate Contact angle Drop evaporation Superhydrophobicity Surfactant adsorption peripheral contact-angle sodium dodecyl-sulfate drop evaporation sessile drops polymer surfaces solid-surfaces carbon-blacks diffusion-coefficie
Publisher URL https://www.sciencedirect.com/science/article/pii/S092777571100286X?via%3Dihub
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