Browsing by Author "Berglund, Linn"

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    Properties of cellulose nanofibre networks prepared from nevEr-dried and dried paper mill sludge
    (Cranfield University, 2018-08-15 11:11) Adu, Cynthia; Jolly, Mark R.; Oksman, Kristiina; Zhu, Chenchen; Berglund, Linn; J. Eichhorn, Stephen
    The data enclosed is the data used in the paper "Properties of cellulose nanofibre networks prepared from never-dried and dried paper mill sludge". The raw data from tensile tests of cellulose nanofibres prepared from paper mill sludge is attached including the x-ray diffraction pattern of the material
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    Properties of cellulose nanofibre networks prepared from never-dried and dried paper mill sludge
    (Elsevier, 2018-06-27) Adu, Cynthia; Berglund, Linn; Oksman, Kristiina; Eichhorn, Stephen J.; Jolly, Mark R.; Zhu, Chenchen
    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.