Journal
INDUSTRIAL CROPS AND PRODUCTS
Volume 48, Issue -, Pages 28-35Publisher
ELSEVIER
DOI: 10.1016/j.indcrop.2013.03.032
Keywords
Cellulose nanocrystal; Film; Switchgrass; Nano-indentation; Humidity; Temperature
Categories
Funding
- Key Project for Academic Subject Foundation of Zhejiang Province
- Natural Science Foundation of Zhejiang Province [LQ12C16003]
- Young Researcher Program of ZAFU [2010FR046]
- Zhejiang Provincial Top Key Discipline of Wood Science and Technology [201109]
- Tennessee Experimental Station Project [TEN00422]
Ask authors/readers for more resources
Two kinds of cellulose nanocrystals (CNCs) were prepared by sulfuric acid hydrolysis from switchgrass and from cotton. The morphology of CNC and casting CNC films were characterized by atomic force microscopy (AFM) and polarized optical microscopy (POM). Nano-indentation was used to measure the nano-mechanical properties of the CNC films, and the influences of humidity and temperature conditions during testing were investigated. The results showed that switchgrass CNC has a higher aspect ratio than cotton CNC; under POM, the switchgrass CNC films showed obvious liquid crystal characteristics. Mechanical testing showed the modulus (E-r) and hardness (H) of switchgrass CNC films to be higher than those of the cotton CNC films. Furthermore, the mechanical properties of both CNC films increased sharply with reducing humidity or increasing temperature. (C) 2013 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available