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Acta of Bioengineering and Biomechanics

Tytuł artykułu

The wettability, mechanical and antimicrobial properties of polylactide/montmorillonite nanocomposite films

Autorzy Rapacz-Kmita, A.  Pierchała, M. K.  Tomas-Trybuś, A.  Szaraniec, B.  Karwot, J. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
EN The aim of this study was to evaluate the effect of the not activated (unmodified) montmorillonite (MMT) filler on the antibacterial properties of polymer nanocomposites with a biodegradable polylactide (PLA) matrix. The subject of research was selected to verify the reports on the lack of antibacterial properties of unmodified montmorillonite in nanocomposites and to investigate the potential condition of their manufacturing which are decisive for the resulting properties. Evaluation of antibacterial and mechanical properties of both the starting materials and the obtained nanocomposites filled with layered silicates, as well as the wettability of the materials measured by a sitting drop method, was made on samples in the form of a film. The results show that the surface wettability of the polymer nanocomposites did not exhibit significant change compared to the film of neat PLA. However, a significant improvement in the mechanical and antimicrobial properties of the nanocomposite films obtained in a specific solvent casting process of the nanocomposite preceded by exfoliation of the film in an ultrasonic homogenizer was demonstrated. The antibacterial activity against Gram-positive bacteria Staphylococcus aureus and Enterococcus faecalis was also observed, and moreover, the montmorillonite-containing films revealed a zone of inhibition of bacterial growth when tested against the lactose-positive bacteria of the Enterobacteriaceae family, which are present in the waste water. The advantageous properties of the obtained PLA/MMT nanocomposites suggest, that the unmodified montmorillonite may be potentially used as filler for polymer films in the packaging industry.
Słowa kluczowe
PL montmorylonity   nanokompozyty   właściwości antybakteryjne   właściwości mechaniczne  
EN montmorillonite   nanocomposite films   antibacterial properties   mechanical properties  
Wydawca Oficyna Wydawnicza Politechniki Wrocławskiej
Czasopismo Acta of Bioengineering and Biomechanics
Rocznik 2017
Tom Vol. 19, nr 4
Strony 25--33
Opis fizyczny Bibliogr. 25 poz., rys., tab., wykr.
autor Rapacz-Kmita, A.
  • AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Krakow, Poland,
autor Pierchała, M. K.
  • AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Krakow, Poland
autor Tomas-Trybuś, A.
  • The Water and Sewage Limited Liability Company, The Water and Sewage Analysis Laboratory, Rybnik, Poland
autor Szaraniec, B.
  • AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Krakow, Poland
autor Karwot, J.
  • The Water and Sewage Limited Liability Company, The Water and Sewage Analysis Laboratory, Rybnik, Poland
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Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).
Kolekcja BazTech
Identyfikator YADDA bwmeta1.element.baztech-c5686cd4-60a9-4413-86bc-ede4c6d4b660
DOI 10.5277//ABB-00820-2017-02