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Effect of sonication time and heat treatment on the structural and physical properties of chitosan/graphene oxide nanocomposite films


Citation

F., Han Lyn and Tan, Chin Ping and Mohd Zawawi, Ruzniza and Zainal Abidin, Nur Hanani (2021) Effect of sonication time and heat treatment on the structural and physical properties of chitosan/graphene oxide nanocomposite films. Food Packaging and Shelf Life, 28. art. no. 100663. pp. 1-11. ISSN 2214-2894

Abstract

This study determined the effect of ultrasonication time (30, 60, and 120 min) and heat treatment (30, 60, and 120 °C) on the structure and properties of the chitosan/ graphene oxide (CSGO) composite films. Graphene oxide (GO) nanosheets with thickness of ∼1 nm was obtained after 120 min of sonication, as observed using atomic force microscopy (AFM). The incorporation of highly sonicated GO significantly (p < 0.05) improved both visible and ultraviolet (UV) light barrier properties of chitosan (CS) films. The heating temperature of 120 °C improved the hydrophobicity of the CSGO composite films, as demonstrated by contact angle analysis. Finally, all films were completely degradable within 28 days in a soil compost. The CSGO composites are potential green alternatives to petrochemical-based food packaging materials.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Food Science and Technology
Faculty of Science
Halal Products Research Institute
DOI Number: https://doi.org/10.1016/j.fpsl.2021.100663
Publisher: Elsevier
Keywords: Composite films; Graphene; Hydrophobic film; Ultrasonication; Biodegradable
Depositing User: Ms. Nuraida Ibrahim
Date Deposited: 23 Nov 2022 07:34
Last Modified: 23 Nov 2022 07:34
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.fpsl.2021.100663
URI: http://psasir.upm.edu.my/id/eprint/96942
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