Contact
    Start Publications Wear resistance of nanoparticle coatings on paperboard
    ←  Publication Finder
    Attension

    Wear resistance of nanoparticle coatings on paperboard

    Year: 2013

    Journal: Wear, Volume 307, Issues 1–2, 30 September 2013, Pages 112–118, 20131119

    Authors: Milena Stepien 1, Gary Chinga-Carrasco 2, Jarkko J. Saarinen 1, Hannu Teisala 3, Mikko Tuominen 3, Mikko Aromaa 4, Janne Haapanen 5, Jurkka Kuusipalo 3, Jyrki M. Mäkelä 5, Martti Toivakka 1

    Organizations: 1: Laboratory of Paper Coating and Converting, Center for Functional Materials, Abo Akademi University, Porthansgatan 3, FI-20500 Åbo / Turku, Finland, 2: Paper and Fibre Research Institute (PFI), Trondheim, Norway, 3: Paper Converting and Packaging Technology, Department of Materials Science, Tampere University of Technology, P.O.Box 589, FI-33101 Tampere, Finland, 4: Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., Pasadena, CA 91125, USA, 5: Aerosol Physics Laboratory, Department of Physics, Tampere University of Technology, P.O. Box 692, FI-33101 Tampere, Finland

    Paper can be coated with liquid flame spray (LFS) generated nanoparticles to control the wettability of its surface from hydrophilic to superhydrophobic. The adhesion of the nanoparticles on paper is of interest both for understanding the product durability during its lifetime and for product safety issues. Poor particle adhesion influences the desired functional properties and released nanoparticles cause health and environmental concerns. To investigate the wear resistance of LFS-TiO2 and -SiO2 coated papers, the nanoparticle surfaces were exposed to rotary abrasion tests. The changes in the samples were analyzed by contact angle measurements and high resolution field-emission scanning electron microscopy (FESEM). After abrasive action with another paperboard surface, only relatively small changes in wettability of superhydrophobic/hydrophilic coatings were found. A more severe abrasive action will remove some of the nanoparticle coating, but the hydrophobic/hydrophilic character of the surface is still maintained to large extent. The results indicate that the wear resistance of LFS nanocoated paper surfaces differs and depends on the nanoparticle material type used for the coating. This is clearly reflected as changes in surface structure shown by FE-SEM and wettability. The results can help understanding which paper-related application areas could be targeted with the LFS-nanoparticle coating process.