Journal
CARBOHYDRATE POLYMERS
Volume 117, Issue -, Pages 414-421Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2014.10.003
Keywords
Cellulose; Self assembly; Cellulose film; Ordered-structure; High-strength
Categories
Funding
- China Postdoctoral Science Foundation [2012M511491]
- Shandong Province Young and Middle-Aged Scientists Research Awards Fund [BS2012CL030]
- National Natural Science Foundation of China [31370581]
- Program for the Scholar of Yellow River Mouth [DYRC20120105]
Ask authors/readers for more resources
Based on the formation of cellulose hydrogels in NaOH/urea aqueous solvent media, cellulose self-assembly precursor is acquired. It is proved that the water uptake capability of the cellulose hydrogels depends highly on the cross-link degree (CLD) of cellulose. With varying CLD and concentration of cellulose, a variety of morphologies of cellulose self-assemblies, including sheets with perfect morphology, high-aspect-ratio fibers, and disorganized segments and network, are formed through evaporation. Furthermore, cellulose films are fabricated by diecasting and evaporating the cellulose hydrogels, resulting in a 3D-ordered structure of closely stacking of cellulose sheets. The mechanical test indicates both tensile strength and flexibility of the cellulose films are greatly improved, which is attributed to the formation of the orderly stacking of cellulose sheets. The study is expected to lay an important foundation on the preparation of ordered and high-strength cellulose materials. (C) 2014 Elsevier Ltd. 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