Molecules (Aug 2023)

Effect of the Addition of Graphene Flakes on the Physical and Biological Properties of Composite Paints

  • Natalia Bartczak,
  • Jerzy Kowalczyk,
  • Robert Tomala,
  • Mariusz Stefanski,
  • Damian Szymański,
  • Maciej Ptak,
  • Wiesław Stręk,
  • Konrad Szustakiewicz,
  • Tomasz Kurzynowski,
  • Łukasz Szczepański,
  • Adam Junka,
  • Damian Gorczyca,
  • Paweł Głuchowski

DOI
https://doi.org/10.3390/molecules28166173
Journal volume & issue
Vol. 28, no. 16
p. 6173

Abstract

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In this study, graphene flakes were obtained using an electrolytic method and characterized using X-ray diffraction (XRD), Raman and FTIR spectroscopy, scanning and transmission electron microscopy (SEM/TEM). Graphene-based composites with varying concentrations of 0.5%, 1% and 3% by weight were prepared with acrylic paint, enamel and varnish matrices. The mechanical properties were evaluated using micro-hardness testing, while wettability and antimicrobial activity against three pathogens (Staphylococcus aureus 33591, Pseudomonas aeruginosa 15442, Candida albicans 10231) were also examined. The results indicate that the addition of graphene flakes significantly enhances both the mechanical and antimicrobial properties of the coatings.

Keywords