Recent advances in self-healing superhydrophobic coatings

Due to special surface wettability, biomimetic superhydrophobic materials have received a lot of attention. Nevertheless, its short useful life hinders widespread application. To fabricate long-life superhydrophobic coatings, researchers have optimized material selection and preparation techniques. On this basis, endowing the superhydrophobic coating with self-healing characteristics will further extend its useful life. This paper reviews the recent progress in current research on self-healing superhydrophobic coatings. We mainly describe the mechanism and classification of self-healing superhydrophobic coating. Given the common problems of self-healing superhydrophobic coatings, such as the healing efficiency, healing times, and healing universality, the existing solutions are summarized and the views are put forward. Then the applications of self-healing superhydrophobic coatings are summarized. Finally, the prospects of self-healing superhydrophobic coatings prospect.