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The Synergistic Microbiological Effects of Industrial Produced Packaging Polyethylene Films Incorporated with Zinc Nanoparticles
Abstract
Zinc compounds in polyolefin films regulate the transmission of UV-VIS radiation, affect mechanical properties and antimicrobial activity. According to hypothesis, the use of zinc- containing masterbatches in polyethylene films (PE) with different chemical nature—hydrophilic zinc oxide (ZO) and hydrophobic zinc stearate (ZS)—can cause a synergistic effect, especially due to their antimicrobial properties. PE films obtained on an industrial scale containing zinc oxide and zinc stearate masterbatches were evaluated for antimicrobial activity against E. coli and S. aureus strains. The morphology of the samples (SEM), composition (EDX), UV barrier and transparency, mechanical properties and global migration level were also determined. SEM micrographs confirmed the good dispersion of zinc additives in the PE matrix. The use of both masterbatches in one material caused a synergistic effect of antimicrobial activity against both bacterial strains. The ZO masterbatch reduced the transparency of films, increased their UV-barrier ability and improved tensile strength, while the ZS masterbatch did not significantly change the tested parameters. The global migration limit was not exceeded for any of the samples. The use of ZO and ZS masterbatch mixtures enables the design of packaging with high microbiological protection with a controlled transmission for UV and VIS radiation.
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Authors (7)
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Marcin Konzorski
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Paweł Święcikowski
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Andrzej Nelson
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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Polymers
no. 12,
ISSN: 2073-4360 - Language:
- English
- Publication year:
- 2020
- Bibliographic description:
- Mania S., Cieślik M., Konzorski M., Święcikowski P., Nelson A., Banach A., Tylingo R.: The Synergistic Microbiological Effects of Industrial Produced Packaging Polyethylene Films Incorporated with Zinc Nanoparticles// Polymers -Vol. 12,iss. 5 (2020), s.1198-
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/polym12051198
- Verified by:
- Gdańsk University of Technology
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