Journal
CARBOHYDRATE POLYMERS
Volume 102, Issue -, Pages 136-143Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2013.11.021
Keywords
Cellulose nanofibers; Sugar beet; High pressure homogenization; Morphology; Thermal degradation
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Funding
- Beijing Municipal Science and Technology Commission [Z121100001312010, D12110003112002]
- National Natural Science Foundation of China [31000813]
- High Technology Research and Development Program of China [2011AA100802]
- Science and Technology Support Project of China [2013BAD10B03]
- Commonweal Guild Agricultural Scientific Research Program of China [201003077]
- Chinese Universities Scientific Fund [2012YJ092, 2012QJ009, 2013YJ007]
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Cellulose nanofibers (diameter =10-70 nm) were produced using chemical treatments (alkali treatment and bleaching) and high pressure homogenization from de-pectinated sugar beet pulp (DSBP). Chemical analysis and Fourier transform infrared spectroscopy (FTIR) indicated that the chemical treatments greatly removed the hemicellulose and lignin from the DSBP and significantly increased the cellulose content. The crystallinity of the cellulose nanofibers increased from 35.67% to 69.62% after alkali treatment and bleaching. The thermal degradation temperature of DSBP cellulose nanofibers was 271.7 degrees C which was found to be 47.3 degrees C higher than that of the untreated DSBP. The DSBP cellulose nanofibers can be preferably used as reinforcement in the biocomposite material at high temperature. (C) 2013 Elsevier Ltd. All rights reserved.
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