Quantitative modelling of water transport in ultrathin cellulose nanofibril films

Minna Hakalahti, Eero Kontturi, Tekla Tammelin

    Research output: Contribution to conferenceConference AbstractScientificpeer-review

    Abstract

    Cellulose nanoparticles exhibit distinct water uptake behaviour in response to changing humidity conditions. Models that describe the associated phenomena, such as diffusivity and permeability, are needed for fundamental understanding of behaviour of cellulose nanoparticles. Cellulose thin films combined with surface-sensitive methods provide a unique platform for studying the fundamental aspects of water transport in cellulose nanofibril films quantitatively. We use the quartz crystal microbalance with dissipation monitoring (QCM-D) equipped with humidity uptake module to determine the water diffusivity and permeability of water in ultrathin cellulose nanofibril films. Additionally, we evaluate the relevance of the Langmuir-Flory-Huggins bimodal sorption model with regard to cellulose nanofibril films over the whole range of water activity. The model provides new insights into the peculiar behaviour of cellulose nanofibrils with respect to applications, such as membranes, barriers and sensors.
    Original languageEnglish
    Publication statusPublished - Apr 2017
    MoE publication typeNot Eligible
    Event253rd ACS National Meeting - San Francisco, United States
    Duration: 2 Apr 20176 Apr 2017

    Conference

    Conference253rd ACS National Meeting
    CountryUnited States
    CitySan Francisco
    Period2/04/176/04/17

    Fingerprint

    nanofibers
    films (materials)
    cellulose
    water
    nanoparticles
    diffusivity
    humidity
    permeability
    quartz
    water activity
    water uptake
    sorption
    crystals
    uptake mechanisms
    monitoring

    Cite this

    Hakalahti, M., Kontturi, E., & Tammelin, T. (2017). Quantitative modelling of water transport in ultrathin cellulose nanofibril films. Abstract from 253rd ACS National Meeting, San Francisco, United States.
    Hakalahti, Minna ; Kontturi, Eero ; Tammelin, Tekla. / Quantitative modelling of water transport in ultrathin cellulose nanofibril films. Abstract from 253rd ACS National Meeting, San Francisco, United States.
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    abstract = "Cellulose nanoparticles exhibit distinct water uptake behaviour in response to changing humidity conditions. Models that describe the associated phenomena, such as diffusivity and permeability, are needed for fundamental understanding of behaviour of cellulose nanoparticles. Cellulose thin films combined with surface-sensitive methods provide a unique platform for studying the fundamental aspects of water transport in cellulose nanofibril films quantitatively. We use the quartz crystal microbalance with dissipation monitoring (QCM-D) equipped with humidity uptake module to determine the water diffusivity and permeability of water in ultrathin cellulose nanofibril films. Additionally, we evaluate the relevance of the Langmuir-Flory-Huggins bimodal sorption model with regard to cellulose nanofibril films over the whole range of water activity. The model provides new insights into the peculiar behaviour of cellulose nanofibrils with respect to applications, such as membranes, barriers and sensors.",
    author = "Minna Hakalahti and Eero Kontturi and Tekla Tammelin",
    year = "2017",
    month = "4",
    language = "English",
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    Hakalahti, M, Kontturi, E & Tammelin, T 2017, 'Quantitative modelling of water transport in ultrathin cellulose nanofibril films', 253rd ACS National Meeting, San Francisco, United States, 2/04/17 - 6/04/17.

    Quantitative modelling of water transport in ultrathin cellulose nanofibril films. / Hakalahti, Minna; Kontturi, Eero; Tammelin, Tekla.

    2017. Abstract from 253rd ACS National Meeting, San Francisco, United States.

    Research output: Contribution to conferenceConference AbstractScientificpeer-review

    TY - CONF

    T1 - Quantitative modelling of water transport in ultrathin cellulose nanofibril films

    AU - Hakalahti, Minna

    AU - Kontturi, Eero

    AU - Tammelin, Tekla

    PY - 2017/4

    Y1 - 2017/4

    N2 - Cellulose nanoparticles exhibit distinct water uptake behaviour in response to changing humidity conditions. Models that describe the associated phenomena, such as diffusivity and permeability, are needed for fundamental understanding of behaviour of cellulose nanoparticles. Cellulose thin films combined with surface-sensitive methods provide a unique platform for studying the fundamental aspects of water transport in cellulose nanofibril films quantitatively. We use the quartz crystal microbalance with dissipation monitoring (QCM-D) equipped with humidity uptake module to determine the water diffusivity and permeability of water in ultrathin cellulose nanofibril films. Additionally, we evaluate the relevance of the Langmuir-Flory-Huggins bimodal sorption model with regard to cellulose nanofibril films over the whole range of water activity. The model provides new insights into the peculiar behaviour of cellulose nanofibrils with respect to applications, such as membranes, barriers and sensors.

    AB - Cellulose nanoparticles exhibit distinct water uptake behaviour in response to changing humidity conditions. Models that describe the associated phenomena, such as diffusivity and permeability, are needed for fundamental understanding of behaviour of cellulose nanoparticles. Cellulose thin films combined with surface-sensitive methods provide a unique platform for studying the fundamental aspects of water transport in cellulose nanofibril films quantitatively. We use the quartz crystal microbalance with dissipation monitoring (QCM-D) equipped with humidity uptake module to determine the water diffusivity and permeability of water in ultrathin cellulose nanofibril films. Additionally, we evaluate the relevance of the Langmuir-Flory-Huggins bimodal sorption model with regard to cellulose nanofibril films over the whole range of water activity. The model provides new insights into the peculiar behaviour of cellulose nanofibrils with respect to applications, such as membranes, barriers and sensors.

    M3 - Conference Abstract

    ER -

    Hakalahti M, Kontturi E, Tammelin T. Quantitative modelling of water transport in ultrathin cellulose nanofibril films. 2017. Abstract from 253rd ACS National Meeting, San Francisco, United States.