Journal
NANOMATERIALS
Volume 13, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/nano13030553
Keywords
graphene oxide; nanosheet; polyurethane; composite; XPS spectra; Raman spectra
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Thermally stable films were successfully obtained by adding small amounts of graphene oxide (GO) to a water-based polyurethane (PU) dispersion. The films were characterized using elemental analysis, X-ray photoelectron spectroscopy, differential thermogravimetry, and Raman spectroscopy. It was observed that the introduction of GO into a PU matrix led to partial reduction in graphene oxide nanosheet and an increase in defects concentration in the GO structure. The [C/N] ratio in the near-surface layer of PU/GO composite films was found to increase with the increase in graphene oxide content.
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.
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