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

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Keywords

  • foam coating
  • aqueous foam
  • surface properties
  • silica

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