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On the State of Graphene Oxide Nanosheet in a Polyurethane Matrix.

Sergey A BaskakovYulia V BaskakovaEvgeny Nikolaevich KabachkovElizaveta V DvoretskayaSvetlana S KrasnikovaVitaly I KorepanovAlexandre MichtchenkoYury M Shulga
Published in: Nanomaterials (Basel, Switzerland) (2023)
Thermally stable films were obtained from a water-based polyurethane (PU) dispersion with small (0.1-1.5 wt.%) additions of graphene oxide (GO). The films were studied through elemental analysis, X-ray photoelectron spectroscopy, differential thermogravimetry, and Raman spectroscopy. It was found that the introduction of GO into a PU matrix was accompanied by a partial reduction in graphene oxide nanosheet and an increase in the concentration of defects in GO structure. It has been also established that the [C/N] at ratio in the near-surface layer of PU/GO composite films grows with an increase in the content of graphene oxide in the composite films.
Keyphrases
  • room temperature
  • raman spectroscopy
  • high resolution
  • carbon nanotubes
  • single molecule
  • magnetic resonance imaging
  • ionic liquid
  • solid state
  • dual energy