Functional surfaces produced by foam coating

Eija Kenttä, Hanna Koskela, Sara Paunonen, Tuomo Hjelt, Karita Kinnunen-Raudaskoski

    Research output: Contribution to conferenceConference AbstractScientific

    Abstract

    This paper reports experiments on the formulations that are suitable for applying a thin pigment layer with the foam coating technique on a paper web. To understand foaming properties of nano-silica dispersions, critical micelle concentration (CMC), foam half-life time and foam bubble size stability were determined with three different foaming agents. Pilot foam coating trials were done and the effects of the chosen foaming agents were studied on the properties of the nano-silica coated paper. The results show that the surface hydrophilicity of the silica coated paper was related not only to silica pigment, but also to the chemical nature of the foaming agent. Paper standard properties were not affected by the thin silica coating.
    Original languageEnglish
    Publication statusPublished - 2015
    Event11th European Coating Symposium: Advances in Coating and Drying of Thin Films - Eindhoven, Netherlands
    Duration: 9 Sep 201511 Sep 2015

    Conference

    Conference11th European Coating Symposium
    Abbreviated titleECS 2015
    CountryNetherlands
    CityEindhoven
    Period9/09/1511/09/15

    Keywords

    • foam coating
    • aqueous foam
    • surface properties
    • silica

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