Impinging jet study of the deposition of colloidal particles on synthetic polymer (Zeonor)

Jakub Vlček, Lubomír Lapčík, Jiri Cech, Barbora Lapčíková

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    Abstract

    In this study, an impinging jet deposition experiments were performed on synthetic polymer (Zeonor) original and by micro-embossing modified substrates with exactly defined topology as confirmed by AFM and SEM. Deposition experiments were performed at ambient temperature and at selected flow regime of Re=10. As a particles deposited a polystyrene (PS) 1,1μm diameter particles (Sigma–Aldrich) were used having negative charge of −20mV as observed by zeta potential experiments. There was found gradual increase of total number of deposited particles with time reaching steady state number. Obtained kinetic curves were fitted to the theoretical blocking model where characteristic time required to reach the steady state (blocking time) as well as steady state number of deposited particles were calculated.
    Original languageEnglish
    JournalInternational Journal of Heat and Mass Transfer
    Volume78
    Pages (from-to)416-422
    Number of pages7
    ISSN0017-9310
    DOIs
    Publication statusPublished - 2014

    Keywords

    • Embossing
    • Contact angle
    • Kinetics of deposition
    • Polymer
    • Zeonor
    • Polystyrene particles

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