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Proceedings Paper

Preventing interfacial slip in carbon nanotube polycarbonate composites
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Paper Abstract

Several recent studies have shown that interfacial slip at the nanotube-matrix interfaces in carbon nanotube polymer composites can give rise to significant dissipation of energy causing the material structural damping to increase. This effect can be used to efficiently inject damping into composite and heterogeneous structures. However if the interfacial slip of nanotube additives can be prevented, then significant enhancement in stiffness and strength is possible. To inhibit interfacial slippage of nanotubes we established covalent bonds at the nanotube-matrix interfaces by using an epoxidation procedure. The resultant nano-composites are shown to be resistant to interfacial slip and exhibited a higher storage modulus and a lower loss modulus compared to the baseline composite (without nanotube epoxidation). These results indicate that functionalizing nanotubes to establish direct covalent linkages is an effective way to engineer structural components with enhanced mechanical properties.

Paper Details

Date Published: 15 March 2006
PDF: 8 pages
Proc. SPIE 6169, Smart Structures and Materials 2006: Damping and Isolation, 616912 (15 March 2006); doi: 10.1117/12.658618
Show Author Affiliations
Jonghwan Suhr, Rensselaer Polytechnic Institute (United States)
Nikhil Koratkar, Rensselaer Polytechnic Institute (United States)

Published in SPIE Proceedings Vol. 6169:
Smart Structures and Materials 2006: Damping and Isolation
William W. Clark; Mehdi Ahmadian; Arnold Lumsdaine, Editor(s)

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