Creation of superhydrophilic surfaces of paper and board

M Tuominen, H Teisala, M Aromaa, Milena Stepien, JM Mäkelä, Jarkko Saarinen, Martti Toivakka, J Kuusipalo

    Research output: Contribution to journalArticleScientificpeer-review

    15 Citations (Scopus)

    Abstract

    Corona, flame, atmospheric plasma, and liquid flame spray (LFS) techniques were used to create highly hydrophilic surfaces for pigment-coated paper and board and machine-glossed paper. All the surface modification techniques were performed continuously in ambient atmosphere. The physical changes on the surfaces were characterized by field emission gun-scanning electron microscopy (FEG-SEM), atomic force microscopy and Parker Print-Surf surface roughness. The chemical changes were analysed by X-ray photoelectron spectroscopy. The superhydrophilic surfaces, i.e. contact angle of water (CAW) <10 degrees, were created mainly by modifying the surface chemistry of the paper and board by argon plasma or SiO2 coating. The nano- and microscale roughness existing on paper and board surfaces enabled the creation of the superhydrophilic surfaces. Furthermore, the benefits and limitations of the surface modification techniques are discussed and compared. For example, the SiO2 coating maintained its extreme hydrophilicity for at least six months, whereas the CAW of argon plasma-treated surface increased to about 20 degrees already in one day.
    Original languageUndefined/Unknown
    Pages (from-to)864–879
    Number of pages16
    JournalJournal of Adhesion Science and Technology
    Volume28
    Issue number8-9
    DOIs
    Publication statusPublished - 2014
    MoE publication typeA1 Journal article-refereed

    Keywords

    • argon plasma treatment
    • board
    • corona treatment
    • flame treatment
    • liquid flame spray
    • paper
    • SiO2 coating
    • superhydrophilicity

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