Abstract
In this study, starch-PVA based composite films combined with nano SiO2 were prepared by a solvent casting technique. Different amounts of nano SiO2 additives were added to starch-PVA films and the results were evaluated. Accordingly, in starch-PVA films containing nano SiO2 added in the ratio of 1%, 3%, and 5% by mass, nano SiO2 was homogeneously distributed on the surface of the composite films. However, loss of elasticity was observed in films from containing 3% nano SiO2 onwards. The unique properties of nanocomposite films obtained with small amounts of nanomaterial reinforcement have been demonstrated. Composite films have been characterized by Fourier-transform infrared spectroscopy, UV–Vis spectrophotometry, and field emission scanning electron microscopy. Fogging tests were compared. Less nano SiO2 additive in the samples showed the best anti-fogging behavior. This study aims to demonstrate the potential use of starch-PVA nanocomposite films with unique properties in food packaging applications. The surface of starch/PVA films is strengthened by the deposition of SiO2 nanoparticles.
Graphical Abstract
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Acknowledgments
Authors also thank to the Central Research Laboratory, Bilecik Seyh Edebali University for the characterization measurements.
Disclosure statement
The authors report no declarations of interest.
Research involving human participants and/or animals
This research does not involve Human Participants and/or Animals.