ABSTRACT
Using organic anticorrosive coatings is known as the most common and cost-efficient approach for protection against corrosion to extend the service life of metallic structures in a harsh environment. Nevertheless, the appearance of defects in protective films can lead to rapid coating degradation, so providing active protection regarding different mechanisms for self-healing defects is required to guarantee an effective performance and proper service life. The development of smart coatings to realise the mentioned goals has obtained increasing attention due to their capacity to protect metallic substrates in aggressive media by smart release of different kinds of corrosion inhibitors and/or healing agents to target the defects. This chapter briefly summarises the most related and recent studies regarding different release mechanisms of micro- and nanocontainers in smart anticorrosive coatings. Herein, endogenous stimuli-responsive release mechanisms, including pH fluctuation, electrochemical redox/potential, aggressive ions exchange, and exogenous stimuli-responsive release mechanisms, including heat, magnetic field, light, and mechanical impact, followed by multistimuli-responsive containers are reviewed. In the end, some prospects related to future studies and the development of corrosion inhibitor smart micro- and nanocontainers are proposed.
