Nanocontainer-based self-healing coatings: advancements, applications, and future directions in anticorrosion technology: a short review

Metal corrosion presents a major challenge that demands urgent solutions. The scientific community is increasingly focusing on self-healing coatings based on nanocontainers due to their adaptability and long-term corrosion inhibition properties. These coatings control the release of active agents, such as corrosion inhibitors, from micro-/nanocontainers. They can respond to factors like crack formation, pH changes, and temperature variations, often reducing crack propagation rates. This paper provides a comprehensive analysis of the nanocontainers and corrosion inhibitors used in self-healing anticorrosion coatings, covering the types, applications, and synthesis methods of these materials. Additionally, recent advances in producing nanocontainer-based self-healing coatings across various industries are discussed. The report concludes with a summary of key findings and a forecast for the future development of sustainable, efficient, cost-effective, and multifunctional self-healing coatings based on nanotechnology. Further research is recommended to enhance coating formulations with sustainable and advanced approaches.