Starch composites reinforced by bamboo cellulosic crystals
Document Type
Article
Publication Date
1-1-2010
Abstract
Using a method of combined HNO3-KClO3 treatment and sulfuric acid hydrolysis, bamboo cellulose crystals (BCCs) were prepared and used to reinforce glycerol plasticized starch. The structure and morphology of BCCs were investigated using X-ray diffraction, electron microscopy, and solid-state 13C NMR. Results showed that BCCs were of typical cellulose I structure, and the morphology was dependent on its concentration in the suspension. BCC of 50-100 nm were assembled into leaf nervations at low concentration (i.e. 0.1 wt.% of solids), but congregated into a micro-sized "flower" geometry at high concentration (i.e. 10.0 wt.% of solids). Tensile strength and Young's modulus of the starch/BCC composite films (SBC) were enhanced by the incorporation of the crystals due to reinforcement of BCCs and reduction of water uptake. BCCs at the optimal 8% loading level exhibited a higher reinforcing efficiency for plasticized starch plastic than any other loading level. Crown Copyright © 2009.
Publication Source (Journal or Book title)
Bioresource Technology
First Page
2529
Last Page
2536
Recommended Citation
Liu, D., Zhong, T., Chang, P., Li, K., & Wu, Q. (2010). Starch composites reinforced by bamboo cellulosic crystals. Bioresource Technology, 101 (7), 2529-2536. https://doi.org/10.1016/j.biortech.2009.11.058