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Effects of Growth Stage of Bamboo on the Production of Cellulose Nanofibers
Yoko Okahisa,Hiroki Sakata 한국섬유공학회 2019 Fibers and polymers Vol.20 No.8
Bamboo grows widely in zones with a wet season ranging from the tropics to temperate areas and an attractivematerial due to their rapidity of growth. In this study, the possibility of cellulose nanofiber production by applying a mildmechanical treatment to immature bamboo in various stages of lignification was examined. The degree of polymerization andcrystallinity of the cellulose pulp were found to increase with the degree of maturity of the raw bamboo samples. After thefibrillation and filtration, the crystallinity of cellulose sheets obtained from immature bamboo with lower maturation wasincreased. The cellulose nanofiber can be obtained from immature bamboo which contains <10 wt% of lignin by mildmechanical treatment. Moreover, bamboo of this degree of maturity offers advantages over mature bamboo in terms of itsthermal characteristics. Immature bamboo can be a very promising source of raw material for the production of cellulosenanofibers.