Strong, Ductile, and Waterproof Cellulose Nanofibril Composite Films with Colloidal Lignin Particles

Muhammad Farooq, Tao Zou, Guillaume Riviere, Mika H. Sipponen*, Monika Österberg

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

32 Sitaatiot (Scopus)
53 Lataukset (Pure)

Abstrakti

Brittleness has hindered commercialization of cellulose nanofibril (CNF) films. The use of synthetic polymers and plasticizers is a known detour that impairs biodegradability and carbon footprint of the product. Herein, we utilize a variety of softwood Kraft lignin morphologies to obtain strong and ductile CNF nanocomposite films. An optimum 10 wt % content of colloidal lignin particles (CLPs) produced films with nearly double the toughness compared to a CNF film without lignin. CLPs rendered the films waterproof, provided antioxidant activity and UV-shielding with better visible light transmittance than obtained with irregular lignin aggregates. We conclude based on electron microscopy, dynamic water sorption analysis, and tp-DSC that homogeneously distributed CLPs act as ball bearing lubricating and stress transferring agents in the CNF matrix. Overall, our results open new avenues for the utilization of lignin nanoparticles in biopolymer composites equipped with versatile functionalities for applications in food packaging, water purification, and biomedicine.

AlkuperäiskieliEnglanti
Sivut693-704
Sivumäärä12
JulkaisuBiomacromolecules
Vuosikerta20
Numero2
DOI - pysyväislinkit
TilaJulkaistu - 11 helmikuuta 2019
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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  • Projektit

    CERES: Competence Center for the materials Bioeconomy: A Flagship for our Sustainable Future

    Mäkelä, K.

    01/05/201831/12/2022

    Projekti: Academy of Finland: Other research funding

    SUSCELL - Sustainable Composites through Enzymatic processing of Lignin and Lipids

    Zhang, X., Österberg, M., Zou, T., Johansson, L., Kimiaei, E. & Grande, R.

    31/12/201731/12/2020

    Projekti: Other external funding: Other foreign funding

    ZELCOR: Zero Waste Ligno-Cellulosic Biorefineries by Integrated Lignin Valorisation

    Österberg, M.

    01/10/201631/12/2020

    Projekti: EU: Framework programmes funding

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