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Use of Single-Walled Carbon Nanotubes as Reinforcing Fillers in UV-Curable Epoxy Systems

✍ Scribed by Marco Sangermano; Enrica Borella; Aldo Priola; Massimo Messori; Rosa Taurino; Petra Pötschke

Publisher: John Wiley and Sons
Year: 2008
Tongue: English
Weight: 379 KB
Volume: 293
Category: Article
ISSN: 1438-7492
DOI: 10.1002/mame.200800126

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✦ Synopsis

Abstract

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.

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