Self-healing corrosion protective coatings based on micro/nanocarriers: A review

Abstract Extrinsic self-healing corrosion protective coatings have attracted substantial interest because of their ability to prevent damage propagation by releasing corrosion inhibitors and polymerizable agents from micro/nanocarriers. Various micro/nanoencapsulation technologies have been adopted to optimize the loading capacity and to control the releasing behavior of the healing agents for enhancing the self-healing functionality. This study aims to review recent advances in self-healing corrosion protective coatings based on micro/nanocarriers. This review also provides insights for the further development of extrinsic self-healing coatings by evaluating the advantages and limitations of different healing systems.