Shape memory assisted self-healing coating

Xiaofan Luo; Patrick T. Mather

doi:10.1021/mz400017x

Shape memory assisted self-healing coating

Xiaofan Luo, Patrick T. Mather

Department of Biomedical & Chemical Engineering

Research output: Contribution to journal › Article › peer-review

354 Scopus citations

Abstract

In this communication, we report the preparation and characterization of new shape memory assisted self-healing (SMASH) coatings. The coatings feature a phase-separated morphology with electrospun thermoplastic poly(ε- caprolactone) (PCL) fibers randomly distributed in a shape memory epoxy matrix. Mechanical damage to the coating can be self-healed via heating, which simultaneously triggers two events: (1) the shape recovery of the matrix to bring the crack surfaces in spatial proximity, and (2) the melting and flow of the PCL fibers to rebond the crack. In controlled healing experiments, damaged coatings not only heal structurally, but also functionally by almost completely restoring the corrosion resistance. We envision the wide applicability of the SMASH concept in designing the next-generation self-healing materials.

Original language	English (US)
Pages (from-to)	152-156
Number of pages	5
Journal	ACS Macro Letters
Volume	2
Issue number	2
DOIs	https://doi.org/10.1021/mz400017x
State	Published - Feb 19 2013

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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Shape memory assisted self-healing coating

Abstract

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