Thermally stable autonomic healing in epoxy using a dual-microcapsule system

Henghua Jin, Chris L. Mangun, Anthony S. Griffin, Jeffrey S. Moore, Nancy R. Sottos, Scott R. White

Research output: Contribution to journalArticlepeer-review

Abstract

Self-healing is achieved with a dual-microcapsule system utilizing epoxy-amine chemistry in a high temperature cured thermosetting epoxy polymer. One capsule contains a modified aliphatic polyamine prepared by vacuum infiltration of polyoxypropylenetriamine into hollow polymeric microcapsules. The second capsule contains a difunctional epoxide and reactive diluent. Healing efficiency is accessed through recovery of fracture toughness and excellent long-term stability at ambient conditions is demonstrated.

Original languageEnglish (US)
Pages (from-to)282-287
Number of pages6
JournalAdvanced Materials
Volume26
Issue number2
DOIs
StatePublished - Jan 15 2014

Keywords

  • amine microcapsule
  • fracture toughness
  • self-healing thermoset

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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