IMPACT OF MICRO/NANOFIBRILLATED CELLULOSE PREPARATION ON THE REINFORCEMENT PROPERTIES OF PAPER AND COMPOSITES FILMS, 2010 TAPPI International Conference on Nanotechnology for the Forest Product Industry

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Micro- and nano-fibrillated cellulose (M/NFC) seem to be one of the ways of better exploiting the potential of cellulosic fibres than the usual paper-based application (1-6). Depending on the fibrous raw materials, pre-treatment and fibrillation conditions, different types of micro/nanofibrillated cellulose can be obtained in terms of microfibrilles individualisation, dimensions, crystallinity, etc. Moreover, the chemical modification of micro- and nano-fibres surfaces can not only impart different functionalities but also be used as pre-treatment for their production. In particular TEMPO-mediated oxidation allow selectively creating carboxyl groups on C6 carbon of cellulosic fibres, which can be used for further grafting of specific moieties either by amidation or esterification (5-8). The work described here aims at understanding the impact of M/NFC preparation on the properties of these materials and consequently on their reinforcement capabilities for paper and composites applications.