Journal
COMPOSITES PART B-ENGINEERING
Volume 160, Issue -, Pages 341-347Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2018.08.048
Keywords
Liquefaction; TEMPO oxidation; Cellulose nanofibers; Cellulose nanocrystals
Funding
- National Natural Science Foundation of China [51263006]
- Hainan Province of Key Project [ZDYF2017005]
- Natural Science Foundation of Hainan Province [217008]
- Hainan International Science and Technology Cooperation Specific [KJHZ2014-02]
- Ministry of PhD Education
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Banana pseudo-stems fibers were novel extracted via atmospheric liquefaction combined with TEMPO-mediated oxidation. Cellulose nanofibers (CNF) and nanocrystals (CNC) were subsequently obtained by high-intensity ultrasonic treatment and acidolysis, respectively. Liquefied residue content as well as its constituent varied with liquefaction time. Scanning electron microscopy and fourier transform infrared demonstrate that the progressive removal of non-cellulosic impurities. Morphological studies exhibit that CNF present a range of 3 similar to 10 nm in diameter and 140 similar to 690 nm in length, while CNC have average diameter of 3.5 +/- 1.6 nm and a length of 93.3 +/- 37.6 nm. XRD analysis indicates that the CNCs have a high crystallinity (95.6%). The thermal stability of the fibers was measured by thermogravimetric analysis. The structures and properties of CNF and CNC give it potential to be used in reinforcing polymeric matrix materials.
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