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Publication - Professor Steve Eichhorn

    Properties of cellulose nanofibre networks prepared from never-dried and dried paper mill sludge

    Citation

    Adu, C, Berglund, L, Oksman, K, Eichhorn, SJ, Jolly, M & Zhu, C, 2018, ‘Properties of cellulose nanofibre networks prepared from never-dried and dried paper mill sludge’. Journal of Cleaner Production, vol 197., pp. 765-771

    Abstract

    Paper mills yield large volumes of sludge materials which pose an environmental and economic challenge
    for disposal, despite the fact that they could be a valuable source for cellulose nanofibres (CNF) production. The aim of the study was to
    evaluate the production process and properties of CNF prepared by mechanical
    fibrillation of never-dried and dried paper mill sludge (PMS). Atomic force microscopy (AFM) showed that average diameters
    for both never-dried and dried paper sludge nanofibres (PSNF) were less than
    50 nm. The never-dried and dried sludge nanofibres showed no statistical
    significant difference (p>0.05) in strength ∼92 MPa, and ∼85 MPa and
    modulus ∼11 GPa and ∼10 GPa. The study concludes that paper
    mill sludge can be used in a dried state for CNF production to reduce
    transportation and storage challenges posed on industrial scale.

    Full details in the University publications repository