Cellulose nanofibers (CNFs) and cellulose nanocrystals (CNCs) were isolated from wood residues including wood dusts and wood pulp fibers from small diameter logs by mechanical and chemical processes, respectively. Both CNF and CNC were used to reinforce water-based polymers, including poly(vinyl alcohol) (PVA) and polyethylene oxide (PEO) in this study. The cellulose nanocomposites were prepared using film casting method. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis, and tensile testing were used to investigate the nanocellulose and its nanocomposites. Most CNF composites had higher strength and modulus than those of CNC composites. Significant differences of thermal behavior were observed according to the amount of nanocellulose used as reinforcement. These nanocomposites can be used for medical, packaging and other applications, which could be benefit for both forest products and packaging industries.

Nanocellulose from wood residues for water-based polymer reinforcement

255th National Meeting (2018)

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