Wear resistant epoxy composites with diisocyanate-based self-healing functionality

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

80 Scopus Citations
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Author(s)

  • N. W. Khun
  • D. W. Sun
  • M. X. Huang
  • J. L. Yang
  • C. Y. Yue

Detail(s)

Original languageEnglish
Pages (from-to)19-28
Journal / PublicationWear
Volume313
Issue number1-2
Publication statusPublished - 15 May 2014
Externally publishedYes

Abstract

Hexamethylene diisocyanate (HDI) filled microcapsules were developed and incorporated in epoxy matrices to form a new type of wear resistant epoxy composites. The tribological properties of the epoxy composites were systemically investigated. The friction and wear of the composites slid against a Cr6 steel ball at different sliding speeds under various normal loads decreased with increased microcapsule content because of the lubricating effect of released HDI liquid from ruptured microcapsules during the wear test and the self-healing process of the released HDI liquid with the moisture to form new polyurea layers on the wear track. It can be concluded that the incorporation of microencapsulated HDI liquid is an effective way to lessen the wear of the epoxy composites during sliding via the self-healing process with a concurrent self-lubricating effect of the released HDI liquid. © 2014 Elsevier B.V.

Research Area(s)

  • HDI filled microcapsule, Polymer, Self-healing, Sliding wear

Bibliographic Note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to lbscholars@cityu.edu.hk.

Citation Format(s)

Wear resistant epoxy composites with diisocyanate-based self-healing functionality. / Khun, N. W.; Sun, D. W.; Huang, M. X. et al.
In: Wear, Vol. 313, No. 1-2, 15.05.2014, p. 19-28.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review