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- Title
Enzyme-assisted mechanical grinding for cellulose nanofibers from bagasse: energy consumption and nanofiber characteristics.
- Authors
Qin, Chengrong; Yang, Shuang; Song, Xueping; Wang, Shuangfei; Liu, Xiuyu; Jiang, Yan; Li, Kecheng
- Abstract
Abstract: Bagasse fibers are smaller and have more hemicellulose than softwood fibers, which is expected to require less mechanical energy in cellulose nanofiber production as small size and hemicellulose benefit the disintegration of fibrils during a mechanical process. Both bagasse fibers and softwood fibers were used in this investigation for producing nanofibers with enzyme pretreatment followed by mechanical grinding. Results showed that nanofibers from bagasse had more uniform diameters about 9 nm, and the films made from them were more transparent. Grinding energy consumption of bagasse fibers was significantly lower than softwood, by 7.31%, and enzyme pretreatment further improved the energy efficiency, by 59.71%, and the yield of nanofibers, by 30.57%. The mechanical strength and thermal stability of nanofiber films from bagasse fibers were similar with that from softwood fibers. The results support the idea that bagasse, a waste or byproduct from sugar industry can be a promising alternative for nanofiber production. Graphical abstract:
- Subjects
CELLULOSE fibers; BAGASSE; GRINDING machines; ENERGY consumption; NANOFIBERS; STRENGTH of materials; THERMAL stability
- Publication
Cellulose, 2018, Vol 25, Issue 12, p7065
- ISSN
0969-0239
- Publication type
Article
- DOI
10.1007/s10570-018-2071-1