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Structure and properties of thermomechanically processed chitosan/carboxymethyl cellulose/graphene oxide polyelectrolyte complexed bionanocomposites
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Chen, Pei, Xie, Fengwei, Tang, Fengzai and McNally, Tony (2020) Structure and properties of thermomechanically processed chitosan/carboxymethyl cellulose/graphene oxide polyelectrolyte complexed bionanocomposites. International Journal of Biological Macromolecules, 158 . pp. 420-429. doi:10.1016/j.ijbiomac.2020.04.259
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Official URL: http://dx.doi.org/10.1016/j.ijbiomac.2020.04.259
Abstract
Bionanocomposites of chitosan and chitosan/carboxymethyl cellulose (CMC) polyelectrolyte complexed materials with graphene oxide (GO) or reduced graphene oxide (rGO) were prepared by thermomechanical processing with excellent levels of dispersion. While GO has a greater affinity with the chitosan polycation, rGO had a more pronounced effect on properties resulting in increased tensile strength, Shore D hardness, and thermal stability of both matrices. Although GO is more hydrophilic than rGO, the former increased more effectively the surface hydrophobicity of the biocomposites regardless of matrix type. GO and rGO changed the α-transition of the biocomposites in a similar manner. The electrochemical properties of the biocomposites were influenced by both nanofiller type and matrix. This research revealed that inclusion of 2D carbon nanomaterials can alter biopolymer interactions and that the phase structure of the biopolymer blend may play a more important role than nanofiller–matrix interactions in determining the overall properties of these bionanocomposites.
| Item Type: | Journal Article | |||||||||||||||
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| Subjects: | Q Science > QC Physics Q Science > QD Chemistry Q Science > QP Physiology T Technology > TA Engineering (General). Civil engineering (General) |
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| Divisions: | Faculty of Science > WMG (Formerly the Warwick Manufacturing Group) | |||||||||||||||
| Library of Congress Subject Headings (LCSH): | Polysaccharides -- Thermomechanical treatment, Polyelectrolytes, Graphene, Microstructure, Contact angle | |||||||||||||||
| Journal or Publication Title: | International Journal of Biological Macromolecules | |||||||||||||||
| Publisher: | Elsevier | |||||||||||||||
| ISSN: | 0141-8130 | |||||||||||||||
| Official Date: | 1 September 2020 | |||||||||||||||
| Dates: |
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| Date of first compliant deposit: | 1 June 2020 | |||||||||||||||
| Volume: | 158 | |||||||||||||||
| Page Range: | pp. 420-429 | |||||||||||||||
| DOI: | 10.1016/j.ijbiomac.2020.04.259 | |||||||||||||||
| Status: | Peer Reviewed | |||||||||||||||
| Publication Status: | Published | |||||||||||||||
| Access rights to Published version: | Restricted or Subscription Access | |||||||||||||||
| RIOXX Funder/Project Grant: |
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