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Thermally activated capillary intrusion of water into cellulose fiber-based materials
Department of Fiber Technology, KTH.ORCID iD: 0000-0002-1503-8293
Department of Fiber Technology, KTH.
Department of Fiber Technology, KTH.
2011 (English)In: The proceedings of the Fundamental and Applied Pulp & Paper Modelling Symposium 2011: August 24-28 2011, Concordia University, Montréal, Canada / [ed] Roger Gaudreault; Sylvain Robert; M A Whitehead, PAPTAC , 2011, 13-26 p.Chapter in book (Refereed)Text
Abstract [en]

The imbibition of water into cellulose fiber-based materials is studied with focus on the regime dominated by contact line dynamics rather than hydrodynamic drag of the bulk porous structure. Capillary rise is studied under the influence of gravity for different paper grades with a wide range of porosities. It is found that the capillary rise is logarithmic in time in the limit of long time-scales. This behavior is in excellent agreement with the Molecular Kinetics Theory (MKT) for contact line dynamics. For high-porosity paper grades, this previously neglected logarithmic regime starts already at about $5$\,cm of capillary intrusion, underscoring the critical importance of the contact line dynamics to the performance of cellulosic absorbents.

Place, publisher, year, edition, pages
PAPTAC , 2011. 13-26 p.
National Category
Paper, Pulp and Fiber Technology
Identifiers
URN: urn:nbn:se:liu:diva-125210ISBN: 978-2-9808323-7-6OAI: oai:DiVA.org:liu-125210DiVA: diva2:903641
Available from: 2016-02-16 Created: 2016-02-16 Last updated: 2016-02-29

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Lindström, Stefan B
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