Easily deconstructed, high aspect ratio cellulose nanofibres from Triodia pungens; an abundant grass of Australia's arid zone
Article
Amiralian, Nasim, Annamalai, Pratheep K., Memmott, Paul, Taran, Elena, Schmidt, Susanne and Martin, Darren J.. 2015. "Easily deconstructed, high aspect ratio cellulose nanofibres from Triodia pungens; an abundant grass of Australia's arid zone." RSC Advances: an international journal to further the chemical sciences. 5 (41), pp. 32124-32132. https://doi.org/10.1039/c5ra02936h
Article Title | Easily deconstructed, high aspect ratio cellulose nanofibres from Triodia pungens; an abundant grass of Australia's arid zone |
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ERA Journal ID | 201472 |
Article Category | Article |
Authors | Amiralian, Nasim, Annamalai, Pratheep K., Memmott, Paul, Taran, Elena, Schmidt, Susanne and Martin, Darren J. |
Journal Title | RSC Advances: an international journal to further the chemical sciences |
Journal Citation | 5 (41), pp. 32124-32132 |
Number of Pages | 9 |
Year | 2015 |
Publisher | The Royal Society of Chemistry |
Place of Publication | United Kingdom |
ISSN | 2046-2069 |
Digital Object Identifier (DOI) | https://doi.org/10.1039/c5ra02936h |
Web Address (URL) | https://pubs.rsc.org/en/content/articlelanding/2015/ra/c5ra02936h |
Abstract | The production of high aspect ratio cellulose nanofibres without resorting to very harsh mechanical and/or chemical processing steps remains a challenge that hinders progress in the fast-moving nanocellulose field. In response to this challenge, herein we report the preparation of high aspect ratio (>500) and small diameter (<8 nm) cellulose nanofibrils through the deconstruction of Australian native 'spinifex' grass (Triodia pungens) by applying very mild pulping conditions combined with only one pass of high pressure homogenization. Spinifex grass has an unusually high hemicellulose content, which facilitates this easy fibrillation process. Tensile measurements of the nanopaper produced by vacuum filtration indicated a high toughness of about 12 MJ m(-3), a tensile strength of 82 MPa and a high elongation at break of 18%. The transverse elastic modulus of single nanofibrils analysed by AM-FM is in the range of 19-24 GPa. Under these mild processing conditions, Triodia pungens nanofibrils retained their crystallinity. |
Keywords | microfibrillated cellulose |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 340302. Macromolecular materials |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Queensland |
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