Paper Title:
Self-Healing of Cracks in Epoxy Composites
  Abstract

To provide epoxy based composites with self-healing ability, two-component healing system consisting of urea-formaldehyde walled microcapsules containing epoxy (30~70µm in diameter) and CuBr2(2-MeIm)4 (the complex of CuBr2 and 2-methylimidazole) latent hardener was synthesized. When cracks were initiated or propagated in the composites, the neighbor micro-encapsulated epoxy would be damaged and released. As the latent hardener is soluble in epoxy, it can be well dispersed in epoxy composites during composites manufacturing, and hence activate the released epoxy wherever it is. As a result, repair of the cracked sites is completed through curing of the released epoxy. The present work indicated that the plain weave glass fabric laminates using the above self-healing epoxy as the matrix have been provided with self-healing capability.

  Info
Periodical
Advanced Materials Research (Volumes 47-50)
Edited by
Alan K.T. Lau, J. Lu, Vijay K. Varadan, F.K. Chang, J.P. Tu and P.M. Lam
Pages
282-285
DOI
10.4028/www.scientific.net/AMR.47-50.282
Citation
T. Yin, M. Z. Rong, M. Q. Zhang, "Self-Healing of Cracks in Epoxy Composites", Advanced Materials Research, Vols. 47-50, pp. 282-285, 2008
Online since
June 2008
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Price
$32.00
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Authors: Hafeez Ullah, Khairun Azizi Azizli, Zakaria Man, Muhammad Irfan Khan
Chapter 1: Composites and Polymeric Materials
Abstract:Three different functionalized polydimethylsiloxane based probable self-healing materials were encapsulated by oil-in-water emulsion...
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