Nik Md Noordin Kahar Nik Nur Farisha, Osman Azlin Fazlina, Alosime Eid, Arsat Najihah, Mohammad Azman Nurul Aida, Syamsir Agusril, Itam Zarina, Abdul Hamid Zuratul Ain
School of Materials & Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal 14300, Malaysia.
Faculty of Chemical Engineering Technology, University Malaysia Perlis (UniMAP), Arau 02600, Malaysia.
Polymers (Basel). 2021 Apr 7;13(8):1194. doi: 10.3390/polym13081194.
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.
聚合物材料作为愈合剂防止任何结构失效的多功能性及其恢复初始机械性能的能力引起了许多研究人员的兴趣。本文探讨了自愈合聚合物材料的各种应用。研究了自愈合的机制，包括每种应用的外在和内在方法。外在机制涉及将微胶囊和血管网络等外部愈合剂引入系统。同时，内在机制是指聚合物基体分子相互作用的固有可逆性，它由外部刺激触发。两种自愈合机制都对受损部位的开裂性能产生了显著影响。本文还介绍了应用于各种领域（包括电子、涂层、航空航天、医疗和建筑领域）的不同类型的自愈合聚合物材料。预计这篇综述能让人们对自愈合聚合物材料及其在各种类型应用中的愈合机制有更广泛的了解。
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