Antibacterial and physical properties of poly(vinyl chloride)-based film coated with ZnO nanoparticles

X. H. Li, Y. G. Xing, W. L. Li, Y. H. Jiang, Y. L. Ding

Research output: Contribution to journalArticle

57 Citations (Scopus)

Abstract

Nanoparticles of ZnO and their application in coating systems have attracted a great deal of attention in recent years because of its multifunction property, especially antibacterial activity. In this study, antibacterial and physical properties of poly(vinyl chloride) (PVC) based film coated with ZnO nanoparticles were investigated. It was found that the antibacterial action should be attributed to the killing effect property of ZnO nanoparticles. The ZnO-coated films treated by shaking for 10 h exhibited a similar high antibacterial activity against Escherichia coli and Staphylococcus aureus as the untreated ZnO-coated films. This result indicated that the ZnO nanoparticles adhered very well to the plastic film. The antibacterial activity of the ZnO-coated film to inactivate E. coli or S. aureus was improved by UV irradiation. The analysis of physical properties of the ZnO-coated films revealed that the nano-ZnO particles showed less effects on the tensile strength and elongation at break of the film. The ultraviolet (UV) light fastness of the ZnO-coated PVC film was improved, which may be attributed to the absorption of ZnO nanoparticles against UV light. Water vapor transmission of the ZnO-coated film decreased from 128 to 85 g/m2 • 24 h, whereas the thickness of film increased from 6.0 μm with increasing the amount of nano-ZnO particles coated from 0 to 187.5 μg/cm2. This research revealed that the PVC film coated with nano-ZnO particles has a good potential to be used as an active coating system for food packaging.

LanguageEnglish
Pages225-232
Number of pages8
JournalFood Science and Technology International
Volume16
Issue number3
DOIs
StatusPublished - Jun 2010

Fingerprint

Vinyl Chloride
poly(vinyl chloride)
antibacterial properties
nanoparticles
films (materials)
Nanoparticles
physical properties
Physical properties
Polyvinyl Chloride
Ultraviolet Rays
Staphylococcus aureus
Polyvinyl chlorides
Food Packaging
Escherichia coli
Tensile Strength
Steam
coatings
Plastics
ultraviolet radiation
Plastic films

Keywords

  • active packaging
  • physical property
  • PVC film
  • ZnO nanoparticles

ASJC Scopus subject areas

  • Food Science
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

Cite this

Antibacterial and physical properties of poly(vinyl chloride)-based film coated with ZnO nanoparticles. / Li, X. H.; Xing, Y. G.; Li, W. L.; Jiang, Y. H.; Ding, Y. L.

In: Food Science and Technology International, Vol. 16, No. 3, 06.2010, p. 225-232.

Research output: Contribution to journalArticle

Li, X. H. ; Xing, Y. G. ; Li, W. L. ; Jiang, Y. H. ; Ding, Y. L. / Antibacterial and physical properties of poly(vinyl chloride)-based film coated with ZnO nanoparticles. In: Food Science and Technology International. 2010 ; Vol. 16, No. 3. pp. 225-232.
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