Abstract
Superhydrophobic coatings have many potential applications in prevention of ice, frost, condensation, and corrosion due to their strong hydrophobicity and self-cleaning function. However, superhydrophobic coatings do not have ideal mechanical stability in engineering applications, and the coatings lose their superhydrophobic properties with wear. We propose an innovative combination of a macroscopic aluminum honeycomb structure with a superhydrophobic coating to prepare a mechanically stable, structured coating by a simple spraying process. The coating showed excellent performance in laboratory ice, frosting, and outdoor ice tests. Compared with common superhydrophobic coatings, the total ice-up time of single droplet was prolonged by 190 s on a platform at −15 °C because of the reduced heat transfer between the macro-honeycomb wall and the droplets. After 300 wear tests, the frosting amount increased by only 0.03 g when the platform was tilted to 60% at −20 °C and 75 ± 5% humidity. In the outdoor ice test, no large area of ice was observed on the surface. Our findings provide a new strategy for industrialization of superhydrophobic coating, and our strategy has potential applications in anti-icing and anti-condensation for electrical equipment, drag reduction, and anti-corrosion.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.