Journal
JOURNAL OF APPLIED POLYMER SCIENCE
Volume 132, Issue 29, Pages -Publisher
WILEY
DOI: 10.1002/app.42218
Keywords
extrusion; films; irradiation; packaging; polyolefins
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Funding
- CAPES
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This article presents the production of films based on blends of polypropylene (PP) and modified PP with the insertion of silver nanoparticles (AgNPs) produced to generate a bactericidal effect. The 50/50 blend of PP and PP modified by irradiation in acetylene at a dose of 12.5 kGy was processed in a twin-screw extruder. The addition of AgNPs in poly(N-vinyl-2-pyrrolidone) (PVP) solution was performed during processing in the extruder. The material was characterized by ultraviolet-visible spectroscopy, scanning electron microscopy, energy-dispersive spectroscopy, transmission electron microscopy, cytotoxicity assay, and a reduction in colony-forming units. The PP-PVP1% AgNP film showed silver particles in the nanoscale, presented no cytotoxicity for mammalian cells, and presented antimicrobial effects against Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus bacteria. (c) 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42218.
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