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Chitosan and natural rubber latex biocomposite prepared by incorporating negatively charged chitosan dispersion
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Metadata
Document Title
Chitosan and natural rubber latex biocomposite prepared by incorporating negatively charged chitosan dispersion
Author
Boonrasri S., Sae-Oui P., Rachtanapun P.
Name from Authors Collection
Affiliations
Faculty of Engineering and Agro-Industry, Maejo University, Chiang Mai, 50290, Thailand; MTEC, National Science and Technology Development Agency (NSTDA), Pathumthani, 12120, Thailand; Division of Packaging Technology, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai, 50100, Thailand; Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai, 50100, Thailand; Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand
Type
Article
Source Title
Molecules
ISSN
14203049
Year
2020
Volume
25
Issue
12
Open Access
Gold, Green
Publisher
MDPI AG
DOI
10.3390/molecules25122777
Abstract
Generally, natural rubber/chitosan (NR/CT) biocomposites could be prepared by either mixing natural rubber latex (NRL) with CT acid solution or mixing dry NR with CT powder on mixing equipment. In the present work, a new mixing method has been proposed and properties of the obtained NR/CT biocomposites are investigated. CT particles were prepared to have a negative charge that could be dispersed in water by using a ball mill before mixing with NRL. The effects of CT loading varied from 0 to 8 phr on latex properties and physical properties of NR/CT biocomposite films were focused. The results showed that the viscosity of NRL increased with increasing CT loading. With increasing CT loading from 0 to 8 phr, 300% modulus of the NR/CT biocomposite film increased, whereas the opposite trend was found for elongation at break. Additionally, the presence of CT in the biocomposite resulted in an increased elastic modulus (E') in conjunction with enhanced antibacterial activity against Staphylococcus aureus (S. aureus). © 2020 by the authors.
Keyword
Bacteria | Biocomposite | Chitosan | Composite | Natural rubber latex
License
CC BY
Rights
Author
Publication Source
Scopus