TY - GEN
T1 - A novel methodology for self-healing at the nanoscale in CNT/epoxy composites
AU - Quigley, E.
AU - Datta, S.
AU - Chattopadhyay, Aditi
N1 - Funding Information:
The authors gratefully acknowledge the support of this research by the Office of Naval Research (ONR; Grant N00014-14-1-0068) under program manager Mr. William Nickerson and the Fulton Undergraduate Research Initiative under the management of Fulton Schools of Engineering at Arizona State University.
Publisher Copyright:
© 2016 SPIE.
PY - 2016
Y1 - 2016
N2 - Self-healing materials have the potential to repair induced damage and extend the service life of aerospace or civil components as well as prevent catastrophic failure. A novel technique to provide self-healing capabilities at the nanoscale in carbon nanotube/epoxy nanocomposites is presented in this paper. Carbon nanotubes (CNTs) functionalized with the healing agent (dicyclopentadiene) were used to fabricate self-healing CNT/epoxy nanocomposite films. The structure of CNTs was considered suitable for this application since they are nanosized, hollow, and provide a more consistent size distribution than polymeric nanocapsules. Specimens with different weight fractions of the functionalized CNTs were fabricated to explore the effect of weight fraction of functionalized CNTs on the extent of healing. Optical micrographs with different fluorescent filters showed partial or complete healing of damage approximately two to three weeks after damage was induced. Results indicate that by using CNTs to encapsulate a healing agent, crack growth in self-healing CNT/epoxy nanocomposites can be retarded, leading to safer materials that can autonomously repair itself.
AB - Self-healing materials have the potential to repair induced damage and extend the service life of aerospace or civil components as well as prevent catastrophic failure. A novel technique to provide self-healing capabilities at the nanoscale in carbon nanotube/epoxy nanocomposites is presented in this paper. Carbon nanotubes (CNTs) functionalized with the healing agent (dicyclopentadiene) were used to fabricate self-healing CNT/epoxy nanocomposite films. The structure of CNTs was considered suitable for this application since they are nanosized, hollow, and provide a more consistent size distribution than polymeric nanocapsules. Specimens with different weight fractions of the functionalized CNTs were fabricated to explore the effect of weight fraction of functionalized CNTs on the extent of healing. Optical micrographs with different fluorescent filters showed partial or complete healing of damage approximately two to three weeks after damage was induced. Results indicate that by using CNTs to encapsulate a healing agent, crack growth in self-healing CNT/epoxy nanocomposites can be retarded, leading to safer materials that can autonomously repair itself.
KW - Self-healing
KW - carbon nanotubess
KW - nanocomposites
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U2 - 10.1117/12.2218741
DO - 10.1117/12.2218741
M3 - Conference contribution
AN - SCOPUS:84982126132
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Smart Materials and Nondestructive Evaluation for Energy Systems 2016
A2 - Peters, Kara J.
A2 - Meyendorf, Norbert G.
A2 - Matikas, Theodoros E.
PB - SPIE
T2 - Smart Materials and Nondestructive Evaluation for Energy Systems 2016
Y2 - 21 March 2016 through 23 March 2016
ER -