Uncovering intelligent self-healing coating: Synthesis strategies, performance, and evaluation techniques – A review

• Y. Albarqouni^1,2, E. Banius¹, N.H.A. Bakar³ and A. Abdullah¹

¹ Faculty of Chemical and Process Engineering Technology, Universiti Malaysia Pahang Al-Sultan Abdullah, Gambang, 26300 Kuantan, Malaysia
² Faculty of applied medical sciences, Clinical Nutrition Department, Al-Azhar University, Gaza, 1277, Palestine
³ Faculty of Industrial Sciences and Technology, Universiti Malaysia Pahang Al-Sultan Abdullah, Gambang, 26300 Kuantan, Malaysia

Abstract: Extrinsic intelligent-healing corrosion protective coatings have granted significant interest for their sensitivity to environmental stimuli to prevent damage by releasing corrosion inhibitors and polymerizable agents from micro/nanocarriers. Several micro/nanoencapsulation synthesis technologies have been adopted to improve the loading capacity and regulate the releasing behaviour of the healing agents. This context aims to review recent advances in intelligent-healing corrosion protective coatings based on micro/nanocarriers. This review also provides insights for synthesizing strategies and methods of such carriers. The study comprehends further development of extrinsic self-healing coatings by evaluating the advantages and drawbacks of different healing systems. Furthermore, the study includes other corrosion rate evaluation techniques to understand better how to monitor such phenomena.

Keywords: physical barrier, corrosion resistance, coating, nanoencapsulation, inhibitors

Int. J. Corros. Scale Inhib., 2023, 12, no. 4, 1592-1609
doi: 10.17675/2305-6894-2023-12-4-11

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