The development of biodegradable packaging materials is important to mitigate the negative environmental impact of plastic waste. This study focuses on enhancing antimicrobial and physical properties of poly(butylene adipate-co-terephthalate) biodegradable film by incorporated with zinc oxide (ZnO)/reduced graphene oxide (rGO). The resulting nanocomposite films were characterized to evaluate its functional properties and antibacterial activity. The ZnO/rGO nanocomposite can improved the mechanical and thermal properties of the PBAT nanocomposite films. In addition, the migration of Zn ions from the PBAT/ZnO/rGO nanocomposite films were considered safe under the criteria established by European plastic regulation (EU) standards. The PBAT/ZnO/rGO nanocomposite films also showed excellent antibacterial activity against Escherichia coli (81.32%) and Staphylococcus aureus (82.44%). The results of this study suggest that PBAT/ZnO/rGO nanocomposite films is effective as a biodegradable active material for food packaging applications.
Bibliographical noteFunding Information:
This work was supported by the School of Life Science and Biotechnology ( BK21PLUS ); Institute of Biomedical Science, Food Safety, Korea University; and Korea Institute of Planning and Evaluation for Technology in Food, Agriculture, and Forestry (IPET) through the High Value-added Food Technology Development Program ( 2020R1A2C101172311 ).
© 2021 Elsevier Ltd
- Nanocomposite films
- Poly(butylene adipate-co-terephthalate)
- Reduced graphene oxide
- Zinc oxide
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Materials Chemistry