The generalized approach of self-healing polymer-coating systems, and demonstrations of its effectiveness for model and industrially important coating systems was reported. The two self healing approaches, ranging from siloxane based materials systems was explored, where in one approach the catalyst is microencapsulated and siloxanes were presented as phase separated droplets. The siloxanes were also encapsulated and dispersed in the coating matrix in the other approach. The experiment was carried out using polyurethane (PU) microcapsules containing 5% dimethyldineodecanoate tin (DMDNT) in chlorobenzene, with PDMS healing agent filled urea formaldehyde microcapsule's formation. The evaluation of self heating function of the coating was carried out through corrosion testing of damaged and healed coated steel samples. The experiment concluded that the autonomic corrosion protection can be obtained by self healing under ambient environmental conditions.

Original languageEnglish (US)
Pages (from-to)645-649
Number of pages5
JournalAdvanced Materials
Issue number6
StatePublished - Feb 9 2009

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering


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