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Carbon Nanotubes Functionalized in Oxygen and Water Low Pressure Discharges used as Reinforcement of Polyurethane Composites
Author(s) -
Zajíčková Lenka,
Kučerová Zuzana,
Buršíková Vilma,
Eliáš Marek,
Houdková Jana,
Synek Petr,
Maršíková Helena,
Jašek Ondřej
Publication year - 2009
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.200932209
Subject(s) - surface modification , materials science , x ray photoelectron spectroscopy , polyurethane , carbon nanotube , composite material , carbon fibers , oxygen , absorption (acoustics) , plasma , chemical engineering , composite number , chemistry , organic chemistry , physics , quantum mechanics , engineering
The functionalization of multi‐walled CNTs in O 2 /Ar and H 2 O/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 O 2 /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.