Autonomous self-healing functionality in advanced fibre reinforced polymer composite materials

T. S. Coope, U. F J Mayer, I. P. Bond, R. S. Trask, D. F. Wass

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

Abstract

A novel Lewis acid-catalysed self-healing system is investigated for implementation in epoxy-based fibre reinforced polymer (FRP) composite materials. The catalyst, scandium(III) triflate, is selected using a qualitative approach and subsequently embedded with pre-synthesised epoxysolvent loaded microcapsules, into an epoxy resin. Healing is initiated when microcapsules are ruptured at the onset of crack propagation. The epoxy monomer healing agent contained within, actively undergoes ring-opening polymerisation (ROP) on contact with the locally placed catalyst, forming a new polymer to bridge the two fractured crack surfaces. Self-healing performance is quantified using tapered double cantilever beam (TDCB) epoxy resin test specimens and the effects of microcapsule loading, microcapsule content and healing temperature are all independently considered. As an initial proof of concept study, results show that a material recovery value of greater than 80% fracture strength is achieved for this novel Lewis acidcatalysed self-healing epoxy resin.

Original languageEnglish
Title of host publicationICCM International Conferences on Composite Materials
Publication statusPublished - 2011
Event18th International Conference on Composites Materials, ICCM 2011 - Jeju, Korea, Republic of
Duration: 21 Aug 201126 Aug 2011

Conference

Conference18th International Conference on Composites Materials, ICCM 2011
CountryKorea, Republic of
CityJeju
Period21/08/1126/08/11

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Keywords

  • Autonomic healing
  • Hollow glass fibre (HGF)
  • Microcapsule
  • Multifunctional composites
  • Self-healing
  • Tapered double cantilever beam (TDCB)

ASJC Scopus subject areas

  • Engineering(all)
  • Ceramics and Composites

Cite this

Coope, T. S., Mayer, U. F. J., Bond, I. P., Trask, R. S., & Wass, D. F. (2011). Autonomous self-healing functionality in advanced fibre reinforced polymer composite materials. In ICCM International Conferences on Composite Materials