Abstract
Cellulose nanofiber (CNF) can be obtained from natural or waste wood by acid hydrolysis. In this unprecedented research, we describe a process for producing CNF with nitric acid. Crystallinity index of approximately 84% was obtained. Eucalyptus certified by Forest Stewardship Council (FSC) was chosen as source aiming to ensure equal reproducibility of future experiments. A wood sample was treated by acid hydrolysis during almost 300 min. The resulting mass was filtered in a vacuum system and dried during one hour at temperature about 100 °C in an oven. The wood sample was also analyzed by X-Ray diffraction (XRD) to be sure of its crystallinity and submitted to a thermal analysis. Cellulose nanofiber has a greater axial elastic modulus (Young’s modulus) than Kevlar, and its mechanical properties are within the range of other reinforcements materials. Cellulose nanofiber can be a good material to reinforce some polymeric filament like polylactic acid (PLA) or acrylonitrile butadiene styrene (ABS).
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Sanchez, M., Spinoza, J.A., Miranda, L.F. (2020). A New Method to Obtain Cellulose Nanofiber from Wood. In: Li, J., et al. Characterization of Minerals, Metals, and Materials 2020. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-36628-5_37
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DOI: https://doi.org/10.1007/978-3-030-36628-5_37
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