Effects of Surfactants on the Preparation of Nanocellulose-PLA Composites

Kirsi Immonen (Corresponding Author), Panu Lahtinen, Jaakko Pere

    Research output: Contribution to journalArticleScientificpeer-review

    13 Citations (Scopus)

    Abstract

    Thermoplastic composite materials containing wood fibers are gaining increasing interest in the manufacturing industry. One approach is to use nano- or micro-size cellulosic fibrils as additives and to improve the mechanical properties obtainable with only small fibril loadings by exploiting the high aspect ratio and surface area of nanocellulose. In this study, we used four different wood cellulose-based materials in a thermoplastic polylactide (PLA) matrix: cellulose nanofibrils produced from softwood kraft pulp (CNF) and dissolving pulp (CNFSD), enzymatically prepared high-consistency nanocellulose (HefCel) and microcellulose (MC) together with long alkyl chain dispersion-improving agents. We observed increased impact strength with HefCel and MC addition of 5% and increased tensile strength with CNF addition of 3%. The addition of a reactive dispersion agent, epoxy-modified linseed oil, was found to be favorable in combination with HefCel and MC.
    Original languageEnglish
    Article number91
    Number of pages13
    JournalBioengineering
    Volume4
    Issue number4
    DOIs
    Publication statusPublished - 2017
    MoE publication typeNot Eligible

    Keywords

    • PLA
    • composites
    • nanocellulose
    • wood fiber composites
    • wood fibers
    • wood polymer composites

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