Compressibility of porous TiO₂ nanoparticle coating on paperboard

Milena Stepien, Jarkko Saarinen, Hannu Teisala, Mikko Tuominen, Janne Haapanen, Jyrki M Mäkelä, Jurkka Kuusipalo, Martti Toivakka

    Research output: Contribution to journalArticleScientificpeer-review

    7 Citations (Scopus)

    Abstract

    Compressibility of liquid flame spray-deposited porous TiO2 nanoparticle coating was studied on paperboard samples using a traditional calendering technique in which the paperboard is compressed between a metal and polymer roll. Surface superhydrophobicity is lost due to a smoothening effect when the number of successive calendering cycles is increased. Field emission scanning electron microscope surface and cross-sectional images support the atomic force microscope roughness analysis that shows a significant compressibility of the deposited TiO2 nanoparticle coating with decrease in the surface roughness and nanoscale porosity under external pressure.
    Original languageUndefined/Unknown
    Pages (from-to)
    Number of pages6
    JournalNanoscale Research Letters
    Volume8
    DOIs
    Publication statusPublished - 2013
    MoE publication typeA1 Journal article-refereed

    Keywords

    • Compressibility
    • Liquid flame spray process
    • Wettability

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