Abstract
The purpose of present study is to evaluate the antimicrobial potential of Thermoplastic Polyester Elastomer (TPE-E ) incorporated with zinc oxide added with colloidal dispersion of metallic silver adsorbed on pyrogenic silica (AgNPs _ZnO ). A combination of single screw extruder and hot press technique was used to fabricate these polymer nanocomposite films. These polymer nanocomposite films were prepared by mechanical mixing of 1% (w/w) of oil, anti-oxidant 0.05% (w/w), TPE-E granules 0.5% (w/w) and followed by single screw extruder to produce the pellets. As-prepared pellets were further melted for films in hot press technique. Antimicrobial activity was evaluated according to Japan Industrial Standard—JIS Z 2801 in TPE-E compounds against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli). TPE-E samples containing additives 0.05 and 0.5% AgNPs _ZnO presented 75 and 93% bactericidal reduction for Gram-negative bacteria Escherichia coli (E. coli) and 76 and 92% bactericidal activity reduction for Gram-positive bacteria Staphylococcus aureus (S. aureus), respectively.
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Acknowledgements
The authors are thankful to CCTM/IPEN for the TEM images, to the Mr. Eleosmar Gaspar for the DSC and TGA analysis, and Vinicius Juvino dos Santos and Camilla Bassetti for the extrusion experiments. To project CAPES 08881068030/2014-10.
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© 2019 The Minerals, Metals & Materials Society
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Marchini, L.G., Parra, D.F., Rangari, V.K. (2019). Incorporation of Silver Nanoparticles in Zinc Oxide Matrix in Polyester Thermoplastic Elastomer (TPE-E) Aiming Antibacterial Activity. In: Li, B., et al. Characterization of Minerals, Metals, and Materials 2019. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-05749-7_9
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DOI: https://doi.org/10.1007/978-3-030-05749-7_9
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