Piezoelectric sensitivity of a layered film of chitosan and cellulose nanocrystals

A. Hänninen, S. Rajala, T. Salpavaara, M. Kellomäki, S. Tuukkanen

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

    16 Citations (Scopus)
    195 Downloads (Pure)


    Free-standing biodegradable films were fabricated by mixing cellulose nanocrystals and nanofibers with a water-based chitosan solution. The piezoelectric sensitivity of the films was measured to find out their suitability in sensing and actuation applications. Also their structure was evaluated with scanning electron microscopy. Our initial results show that a simple solvent casting method can be used to prepare films with varying piezoelectric properties. The composite films of chitosan and cellulose nanocrystals were noticed to have a phase-separated layered structure, resulting in an interesting side-dependent piezoelectric response. Moreover, the sensitivity values of plain chitosan were close to those of a non degradable commercial sensor material polyvinylidene fluoride. The fabrication process has to be studied further to control and optimize the structure and piezoelectric properties of the films.
    Original languageEnglish
    Title of host publication30th Eurosensors Conference, EUROSENSORS 2016
    Number of pages4
    Publication statusPublished - 4 Sept 2016
    Publication typeA4 Article in conference proceedings
    EventEurosensors -
    Duration: 1 Jan 2000 → …

    Publication series

    NameProcedia Engineering
    ISSN (Electronic)1877-7058


    Period1/01/00 → …

    Publication forum classification

    • Publication forum level 1


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