Indian Journal of Advances in Chemical Science, Volume: 9, Issue : 4, December 2021

ISSN No.: 2320-0898 (Print); 2320-0928 (Electronic)

DOI: 10.22607/IJACS.2021.904018

Self-Healing Epoxy Composites: A Review

Sakshi Gupta, Shagufta Tanveer*, Nidhi Singh, Seema Josh

ABSTRACT

This article reviews both intrinsic and extrinsic epoxy composites and their self-healing mechanisms. Epoxy resin composites are polymeric epoxide composite materials capable of automatic repair when damaged, thus have become very popular in recent years. With time, small damage and micro-cracks in epoxy composites are very common so requires regular inspection and maintenance. The self-healing concept minimizes repair costs and increases the lifespan of the material. The addition of functional composite material such as hollow fiber and microcapsules helps to repair the cracks of epoxy materials in extrinsic self-healing composites. Whereas, the intrinsic self-healing mechanism is based on physical and chemical interactions. Epoxy composites due to their exceptional strength, chemical, and heat resistance have superb load-bearing properties, therefore, find wide applications in aerospace, automotive, and construction industries.

Key words: Aerospace, Epoxy composites, Hollow fiber, Microcapsule, Self-healing.

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