Temperature effects on dynamic water absorption into paper

Joel Songok, Pekka Salminen, Martti Toivakka

    Tutkimustuotos: LehtiartikkeliArtikkeliTieteellinenvertaisarvioitu

    22 Sitaatiot (Scopus)

    Abstrakti

    Mechanisms controlling short time water absorption and the effect of temperature on water absorption into paper were investigated by analyzing previously published data. A dynamic contact angle effect caused by contact line friction explained the liquid uptake dynamics at short times. The water absorption rate increase with temperature is suggested to be controlled by the molecular processes occurring in front of the advancing liquid front. The increase in the non-equilibrium vapor pressure at air-liquid interface leads to higher water molecule adsorption onto fibers and associated lowering of the solid-gas interfacial tension, thereby increasing the wetting velocity and water absorption. The classical LucasWashburn equation was found to be inadequate for predicting water absorption into paper both at short times and as a function of temperature.
    AlkuperäiskieliEi tiedossa
    Sivut373–377
    Sivumäärä5
    JulkaisuJournal of Colloid and Interface Science
    Vuosikerta418
    DOI - pysyväislinkit
    TilaJulkaistu - 2014
    OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

    Keywords

    • Contact angle
    • Liquid penetration
    • Paper
    • Temperature dependence

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