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Nanocomposites of Cellulose Acetate Butyrate Reinforced with Cellulose Nanocrystals |
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| Authors: | Maren Grunert William T Winter |
| Institution: | (1) Pulp and Paper Research Centre, McGill University, 3420 University Street, Montreal, QC, Canada, H3A 2A7;(2) Cellulose Research Institute and Department of Chemistry, SUNY College of Environmental Science and Forestry, Syracuse, New York, 13210 |
| Abstract: | Nanocrystals were prepared by acid hydrolysis of bacterial cellulose microfibrils. These were topochemically trimethylsilylated, in an attempt to reduce their hydrophilicity. Composites were made by dispersing either native or silylated crystals in cellulose acetatebutyrate matrixes and solution casting of the dispersions. Particles were characterized by transmission electron microscopy. The composites were characterized by differential scanning calorimetry and dynamic mechanical analysis. The unmodified cellulose crystals exhibited better reinforcement characteristics than the trimethylsilated crystals. |
| Keywords: | Cellulose nanocomposites cellulose cellulose acetatebutyrate thermal analysis dynamic mechanical analysis |
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