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Use of Single‐Walled Carbon Nanotubes as Reinforcing Fillers in UV‐Curable Epoxy Systems
Author(s) -
Sangermano Marco,
Borella Enrica,
Priola Aldo,
Messori Massimo,
Taurino Rosa,
Pötschke Petra
Publication year - 2008
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.200800126
Subject(s) - materials science , epoxy , composite material , carbon nanotube , dynamic mechanical analysis , modulus , polymer
CNT were dispersed in an epoxy matrix and cured by means of UV light. An increase on elastic modulus and T g values was measured by DMTA analysis and attributed to the constraint effect of CNT on polymer chain mobility. Excellent scratch resistant coatings characterized by high critical load, small cracks and high recovery were obtained in the presence of a very low CNT content (0.025 wt.‐%). TEM analysis showed some isolated CNT and some cluster agglomerations of size of about 250 nm. It was shown that it was possible to decrease the surface resistivity of the cured samples by three orders of magnitude in the presence of 0.1 wt.‐% of SWCNT content.