A novel methodology for self-healing at the nanoscale in CNT/epoxy composites

E. Quigley, S. Datta, Aditi Chattopadhyay

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish (US)
Title of host publicationSmart Materials and Nondestructive Evaluation for Energy Systems 2016
PublisherSPIE
Volume9806
ISBN (Electronic)9781510600478
DOIs
StatePublished - 2016
EventSmart Materials and Nondestructive Evaluation for Energy Systems 2016 - Las Vegas, United States
Duration: Mar 21 2016Mar 23 2016

Other

OtherSmart Materials and Nondestructive Evaluation for Energy Systems 2016
CountryUnited States
CityLas Vegas
Period3/21/163/23/16

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Keywords

  • carbon nanotubess
  • nanocomposites
  • Self-healing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Quigley, E., Datta, S., & Chattopadhyay, A. (2016). A novel methodology for self-healing at the nanoscale in CNT/epoxy composites. In Smart Materials and Nondestructive Evaluation for Energy Systems 2016 (Vol. 9806). [98060M] SPIE. https://doi.org/10.1117/12.2218741