Processing and antimicrobial efficacy of polypropylene/montmorillonite/silver nanocomposites as food packaging films
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2016
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PROCEEDINGS OF THE REGIONAL CONFERENCE GRAZ 2015 – POLYMER PROCESSING SOCIETY PPS
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The aim this study was to use nanocomposites of polypropylene (PP), montmorillonite
(MMT) and silver nanoparticles (AgNPs), prepared by melt intercalation in a twin-screw extruder, as a
food packaging bactericide material. The use of nanoclay and nanosilver as additives for polymer
matrices requires, in some cases (with non-polar matrices) the use of a compatibilizer agent which will act
as a bridge or permanent buffer for nanoclay-nanosilver-matrix interaction. As compatibilizer agent it has
been used a propylene graft maleic anhydride copolymer (PP-g-MA). The nanocomposites were
evaluated by differential scanning calorimetry (DSC), X-Rays diffraction (XRD), scanning electron
microscopy (SEM), energy dispersive spectroscopy (EDS) and determination of antibacterial activity. The
results indicate the formation of microstructures predominantly exfoliated. Further, the antibacterial
properties of the films were investigated against Escherichia coli (Gram-negative) and Staphylococcus
aureus (Gram-positive) bacteria.
Como referenciar
OLIANI, WASHINGTON L.; KOMATSU, LUIZ G.H.; LINCOPAN, NILTON; RANGARI, VIJAYA K.; LUGAO, ADEMAR B.; PARRA, DUCLERC F. Processing and antimicrobial efficacy of polypropylene/montmorillonite/silver nanocomposites as food packaging films. In: HOLZER, CLEMENS H. (ed.); PAYER, MARTIN (ed.). In: PROCEEDINGS OF THE REGIONAL CONFERENCE GRAZ 2015 – POLYMER PROCESSING SOCIETY PPS, September 21-25, 2015, Graz, Austria. Proceedings... p. 040008-1 - 040008-5. (AIP Conference Proceedings, 1779). Disponível em: http://repositorio.ipen.br/handle/123456789/26979. Acesso em: 19 Feb 2025.
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