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Lenka Zajíčková, Zuzana Kučerová, Vilma Buršíková, Marek Eliáš, Jana Houdková, Petr Synek, Helena Maršíková, Ondřej Jašek

Carbon Nanotubes Functionalized in Oxygen and Water Low Pressure Discharges used as Reinforcement of Polyurethane Composites

Plasma Processes and Polymers 6 (2009) S864–S869

The functionalization of multi-walled CNTs in O2/Ar and H2O/Ar low pressure capacitive discharges was studied by XPS and FT-IR. The pristine and functionalized CNTs were used as fillers in polyurethane paints. Successful plasma functionalization was confirmed by changes in atomic composition and chemical shift of the XPS atomic signals. The functionalization was indicated also by the shift of IR absorption peaks corresponding to the motion of carbon skeleton, especially the peak at about 1 560 cm-1. The presence of carbonyl was confirmed by IR absorption peak at 1 723 cm-1 only for O2/Ar plasma. The plasma functionalized CNTs increased significantly the universal and plastic hardness of the CNTs reinforced polyurethane as compared to the composites with pristine CNTs.

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