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Preparation of Nanocellulose Films from Corn Straw Furfuryl Residue
Received:September 24, 2021  
DOI：10.11980/j.issn.0254-508X.2022.04.009
Key Words:corn straw furfuryl residue  acid hydrolysis  TEMPO oxidation  ultrasound method  nanocellulose film
Author NameAffiliationPostcode
ZHOU Jin Key Lab of Bio-based Materials Science and Technology of Ministry of Education，Northeast Forestry University， Harbin， Heilongjiang Province， 150040 150040
GUO Yunfeng Key Lab of Bio-based Materials Science and Technology of Ministry of Education，Northeast Forestry University， Harbin， Heilongjiang Province， 150040 150040
ZHANG Tao Key Lab of Bio-based Materials Science and Technology of Ministry of Education，Northeast Forestry University， Harbin， Heilongjiang Province， 150040 150040
XIANG Yuzhou Key Lab of Bio-based Materials Science and Technology of Ministry of Education，Northeast Forestry University， Harbin， Heilongjiang Province， 150040 150040
YUE Jinquan* Key Lab of Bio-based Materials Science and Technology of Ministry of Education，Northeast Forestry University， Harbin， Heilongjiang Province， 150040 150040
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Abstract:In this study， the nanocellulose （CFR-CNC， CFR-CNF and CFR-TNC） were obtained by three methods： acid hydrolysis， ultrasonication and TEMPO （2，2，6，6-tetramethylpiperidine oxide） oxidation， respectively. The microscopic morphology， crystallinity， thermal stability and chemical structure of the films from corresponding nanocellulose were characterized， and the morphological and mechanical properties were also compared. The results showed that the three nanocelluloses had different aspect ratios （29.2， 163.7， 132.2） and crystallinity （62.5%， 52.8%， 43.9%）. The infrared spectra showed that the cellulose molecular structure of the three nanocelluloses didn't change， and CFR-TNC successfully introduced carboxyl groups. Among the three nanocellulose films， the CFR-CNF film had higher tensile strength （36.6 MPa）， the CFR-CNC film had better resistance to deformation， and all films had good transparence.
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