Jinchuan Xu
Amylose/cellulose nanofiber composites for all-natural, fully biodegradable and flexible bioplastics
Xu, Jinchuan; Sagnelli, Domenico; Faisal, Marwa; Perzon, Alixander; Taresco, Vincenzo; Mais, Marco; Giosafatto, Concetta Valeria L.; Hebelstrup, Kim H.; Ulvskov, Peter; J�rgensen, Bodil; Chen, Ling; Howdle, Steven M.; Blennow, Andreas
Authors
Domenico Sagnelli
Marwa Faisal
Alixander Perzon
VINCENZO TARESCO VINCENZO.TARESCO@NOTTINGHAM.AC.UK
Nottingham Research Fellow
Marco Mais
Concetta Valeria L. Giosafatto
Kim H. Hebelstrup
Peter Ulvskov
Bodil J�rgensen
Ling Chen
Prof. STEVE HOWDLE STEVE.HOWDLE@NOTTINGHAM.AC.UK
Professor of Chemistry
Andreas Blennow
Abstract
Thermoplastic, polysaccharide-based plastics are environmentally friendly. However, typical shortcomings include lack of water resistance and poor mechanical properties. Nanocomposite manufacturing using pure, highly linear, polysaccharides can overcome such limitations. Cast nanocomposites were fabricated with plant engineered pure amylose (AM), produced in bulk quantity in transgenic barley grain, and cellulose nanofibers (CNF), extracted from agrowaste sugar beet pulp. Morphology, crystallinity, chemical heterogeneity, mechanics, dynamic mechanical, gas and water permeability, and contact angle of the films were investigated. Blending CNF into the AM matrix significantly enhanced the crystallinity, mechanical properties and permeability, whereas glycerol increased elongation at break, mainly by plasticizing the AM. There was significant phase separation between AM and CNF. Dynamic plasticizing and anti-plasticizing effects of both CNF and glycerol were demonstrated by NMR demonstrating high molecular order, but also non-crystalline, and evenly distributed 20 nm-sized glycerol domains. This study demonstrates a new lead in functional polysaccharide-based bioplastic systems.
Journal Article Type | Article |
---|---|
Acceptance Date | Oct 16, 2020 |
Online Publication Date | Oct 22, 2020 |
Publication Date | Feb 1, 2021 |
Deposit Date | Jun 24, 2021 |
Publicly Available Date | Oct 23, 2021 |
Journal | Carbohydrate Polymers |
Print ISSN | 0144-8617 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 253 |
Article Number | 117277 |
DOI | https://doi.org/10.1016/j.carbpol.2020.117277 |
Keywords | Organic Chemistry; Materials Chemistry; Polymers and Plastics |
Public URL | https://nottingham-repository.worktribe.com/output/4986711 |
Publisher URL | https://www.sciencedirect.com/science/article/abs/pii/S0144861720314508?via%3Dihub |
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