Yimyai Tiwa, Crespy Daniel, Rohwerder Michael
Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, 21210, Thailand.
Max-Planck-Institut für Eisenforschung GmbH, 40237, Düsseldorf, Germany.
Adv Mater. 2023 Nov;35(47):e2300101. doi: 10.1002/adma.202300101. Epub 2023 Sep 29.
Organic coatings are one of the most popular and powerful strategies for protecting metals against corrosion. They can be applied in different ways, such as by dipping, spraying, electrophoresis, casting, painting, or flow coating. They offer great flexibility of material designs and cost effectiveness. Moreover, self-healing has evolved as a new research topic for protective organic coatings in the last two decades. Responsive materials play a crucial role in this new research field. However, for targeting the development of high-performance self-healing coatings for corrosion protection, it is not sufficient just to focus on smart responsive materials and suitable active agents for self-healing. A better understanding of how coatings can react on different stimuli induced by corrosion, how these stimuli can spread in the coating, and how the released agents can reach the corroding defect is also of high importance. Such knowledge would allow the design of coatings that are optimized for specific applications. Herein, the requirements and possibilities from the corrosion and synthesis perspectives for designing materials for preparing self-healing coatings for corrosion protection are discussed.
有机涂层是保护金属免受腐蚀的最常用且有效的策略之一。它们可以通过不同方式应用，如浸渍、喷涂、电泳、浇铸、涂装或流涂。它们在材料设计方面具有很大的灵活性且成本效益高。此外，在过去二十年中，自修复已成为保护性有机涂层的一个新研究课题。响应性材料在这个新研究领域中起着至关重要的作用。然而，为了开发用于腐蚀防护的高性能自修复涂层，仅仅关注智能响应性材料和合适的自修复活性剂是不够的。更好地理解涂层如何对腐蚀引起的不同刺激做出反应、这些刺激如何在涂层中传播以及释放的活性剂如何到达腐蚀缺陷处也非常重要。这些知识将有助于设计针对特定应用进行优化的涂层。在此，从腐蚀和合成的角度讨论了设计用于制备腐蚀防护自修复涂层材料的要求和可能性。
