The Influence of the Q-SUN and UV-B Irradiation on the Antiviral Properties of the PP Films Covered with the Coatings Based on ZnO Nanoparticles and TiO2
Author:
Mizielińska Małgorzata1ORCID, Bartkowiak Artur1ORCID
Affiliation:
1. Center of Bioimmobilisation and Innovative Packaging Materials, Faculty of Food Sciences and Fisheries, West Pomeranian University of Technology Szczecin, Janickiego 35, 71-270 Szczecin, Poland
Abstract
The purpose of this research was to analyze the antiviral activity of coatings based on ZnO nanoparticles and TiO2. The goal was also to investigate the influence of accelerated UV-B and Q-SUN irradiation on their effectiveness. The results of the performed analysis demonstrated that only one of four coatings containing nanoparticles demonstrated high antiviral activity. Q-SUN irradiation had a positive influence on the antiviral properties of the other three coatings. After 24 h of accelerated irradiation, these coatings demonstrated moderate antiviral effectiveness, confirming that Q-SUN irradiation improved the properties of the active layers (by activating ZnO nanoparticles and TiO2). Unfortunately, after 48 h of irradiation, the activity of the coatings decreased, confirming that the irradiation time should not be too long. Comparing the influence of the UV-B irradiation on the coating activity to the Q-SUN irradiation, it has to be mentioned that UV-B irradiation (24 h) also improved the antiviral properties of the three coatings, which were not active before irradiation. However, it decreased the activity of the coating that was active before UV aging. Unfortunately, none of those analyzed coatings were active after 48 h of UV-B irradiation, confirming that the irradiation time should be shorter.
Subject
Materials Chemistry,Surfaces, Coatings and Films,Surfaces and Interfaces
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