Journal
POLYMERS
Volume 13, Issue 8, Pages -Publisher
MDPI
DOI: 10.3390/polym13081194
Keywords
self-healing polymeric materials; self-healing mechanism; intrinsic and extrinsic healing mechanisms
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Funding
- Universiti Tenaga Malaysia (UNITEN)
- Universiti Sains Malaysia - UNITEN [10517844/039]
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This paper discusses various applications of self-healing polymeric materials, explores the external and internal mechanisms of self-healing, and demonstrates the significant impact of self-healing on the cracked properties of damaged sites.
The versatility of polymeric materials as healing agents to prevent any structure failure and their ability to restore their initial mechanical properties has attracted interest from many researchers. Various applications of the self-healing polymeric materials are explored in this paper. The mechanism of self-healing, which includes the extrinsic and intrinsic approaches for each of the applications, is examined. The extrinsic mechanism involves the introduction of external healing agents such as microcapsules and vascular networks into the system. Meanwhile, the intrinsic mechanism refers to the inherent reversibility of the molecular interaction of the polymer matrix, which is triggered by the external stimuli. Both self-healing mechanisms have shown a significant impact on the cracked properties of the damaged sites. This paper also presents the different types of self-healing polymeric materials applied in various applications, which include electronics, coating, aerospace, medicals, and construction fields. It is expected that this review gives a significantly broader idea of self-healing polymeric materials and their healing mechanisms in various types of applications.
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