• Journal of the Korean Wood Science and Technology
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• v.43 no.6
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• pp.730-739
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• 2015

Various cellulose nanofibers (CNF) with different morphology and chemical properties were prepared for the reinforcement of sheet of paper mulberry bast fiber. Lignocellulose nanofiber (LCNF), Holocellulose nanofiber (HCNF), alkali-treated HCNF (AT-HCNF), TEMPO-oxidated nanofiber (TEMPO-NF) and cellulose nanocrystal (CNF) were prepared and their addition effect on the properties of sheet of paper mulberry bast fiber were investigated. Air permeability, surface smoothness, and tensile properties were improved by increasing CNF addition. Its improvement may be due to the CNF deposited between and on paper mulberry bast fibers, which was confirmed by SEM observation.

• Journal of Forest and Environmental Science
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• v.33 no.2
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• pp.154-159
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• 2017

Enzymatic treatment was conducted to hydrolyze pure cellulose nanofiber (PCNF), holocellulose nanofiber (HCNF), and lignocellulose nanofiber (LCNF) for 6, 24 and 72 hours and thus-obtained nanofibers (1, 3, 5, 10 wt%) were used to reinforce polyvinyl alcohol (PVA). Glucose production yield was increased by enzymatic hydrolysis. Tensile strength and elastic modulus of all PVA nanocomposite reinforced three nanofibers were improved by increasing enzymatic hydrolysis time of nanofibers and these values were higher in order of nanocomposite reinforced with PCNF>HCNF>LCNF. Furthermore, tensile properties of nanocomposite with PCNF were increased by nanofiber content. Thermal stability of PVA was improved by adding nanofibers and by increasing nanofiber content.