Mechanical properties of a self-healing fibre reinforced epoxy composites |
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Affiliation: | 3. Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI 48109, USA |
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Abstract: | Inspired by biological systems in which damage triggers an autonomic healing response, a polymer composite material that can heal itself when cracked has been developed. In this work, compression and tensile properties of a self-healed fibre reinforced epoxy composites were investigated. Microencapsulated epoxy and mercaptan healing agents were incorporated into a glass fibre reinforced epoxy matrix to produce a polymer composite capable of self-healing. The self-repair microcapsules in the epoxy resin would break as a result of microcrack expansion in the matrix, and letting out the strong repair agent to recover the mechanical strength with a relative healing efficiency of up to 140% which is a ratio of healed property value to initial property value or healing efficiency up to 119% if using the healed strength with the damaged strength. |
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Keywords: | A polymer-matrix composites (PMCs) B Smart materials C micro-mechanics D Mechanical tests Self-healing |
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