Antibacterial nanocomposite films of poly(vinyl alcohol) modified with zinc oxide-doped multiwalled carbon nanotubes as food packaging

Poly(vinyl alcohol) (PVA) is a synthetic and promising film-forming polymer that is usually used in packaging applications. In this study, PVA nanocomposite films with varying amounts of zinc oxide-doped multiwalled carbon nanotubes (MWCNTs-ZnO) were prepared. The tensile strength of the nanocomposi...

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Bibliographic Details
Published in:Polymer bulletin (Berlin, Germany) Germany), 2022-06, Vol.79 (6), p.3847-3866
Main Authors: Wen, Yi-Hua, Tsou, Chi-Hui, de Guzman, Manuel Reyes, Huang, Dan, Yu, Yong-Qi, Gao, Chen, Zhang, Xue-Mei, Du, Juan, Zheng, Yu-Ting, Zhu, Hui, Wang, Zhao-Hua
Format: Article
Language:English
Subjects:
Antimicrobial agents
Carbon
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Chickens
Complex Fluids and Microfluidics
Contact angle
Food packaging
Food safety
Hydrophobicity
Mechanical properties
Morphology
Multi wall carbon nanotubes
Nanocomposites
Nanomaterials
Nanoparticles
Organic Chemistry
Original Paper
Physical Chemistry
Plastics
Polymer films
Polymer Sciences
Polyvinyl alcohol
Room temperature
Scanning electron microscopy
Shelf life
Soft and Granular Matter
Tensile strength
Thermal stability
Tissue engineering
Vegetables
Water loss
Water vapor
Zinc oxide
Zinc oxides
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Summary:Poly(vinyl alcohol) (PVA) is a synthetic and promising film-forming polymer that is usually used in packaging applications. In this study, PVA nanocomposite films with varying amounts of zinc oxide-doped multiwalled carbon nanotubes (MWCNTs-ZnO) were prepared. The tensile strength of the nanocomposite films was 116% higher than that of the PVA film. The thermal stability, water vapor transmission rate, hydrophobicity, and antibacterial activity of the nanocomposite films were better than those of pure PVA. Tests on water loss in vegetables at room temperature revealed that the vegetable wrapped in packaging films could keep more water for more than 4 days. Tests on the shelf life of chicken meat packed in films suggested that the growth of natural microorganisms in raw chicken kept in the preservation storage of the refrigerator could be inhibited for at least 36 h. The findings of this study indicated that nanocomposite MWCNTs-ZnO/PVA films with good transparency had great potential applications in food packaging. Graphic abstract
ISSN:0170-0839
1436-2449
DOI:10.1007/s00289-021-03666-1