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Abstract

A self-healing, high performance, fibre reinforced polymer (FRP) composite material is demonstrated by employing a Lewis acid-catalysed epoxy self-healing agent (SHA) within a laminate manufactured using existing industrial methods. Thermal cure analysis and mechanical testing is employed to characterise the self-healed polymer. A bio-inspired series of vascules incorporated into an FRP composite material facilitates the delivery of SHAs to exposed fractured crack planes. Healing is effected by ring-opening polymerisation (ROP) of an epoxy resin using novel metal triflate catalysts injected after Mode I crack opening displacement. Strong adhesive compatibility with the host matrix confers full recovery of mechanical properties (>99% healing).

Original languageEnglish
Pages (from-to)208-218
Number of pages11
JournalMacromolecular Materials & Engineering
Volume299
Issue number2
Early online date2 Jul 2013
DOIs
Publication statusPublished - 3 Feb 2014

Keywords

  • bio-inspired
  • ductile failure
  • epoxy
  • ring-opening polymerisation
  • self-healing
  • AEROSPACE APPLICATIONS
  • DAMAGE
  • IMPACT
  • SYSTEMS

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