Abonnement à la biblothèque: Guest

ISBN: 978-1-56700-537-0

ISBN Online: 978-1-56700-538-7

ISSN Online: 2377-424X

International Heat Transfer Conference 17
August, 14-18, 2023, Cape Town, South Africa

SUPERHYDROPHOBIC ANTI/DE-ICING COATINGS WITH PHOTOTHERMAL EFFECT

Get access (open in a dialog) DOI: 10.1615/IHTC17.320-30
7 pages

Résumé

Superhydrophobic materials have shown great advantages in anti-icing applications due to their excellent properties of waterproofing, antifouling, self-cleaning and reducing fluid viscosity. Here, we developed a novel strategy to fabricate nanowhiskers and nanowires in situ on a copper sheet based on a more flexible bottom-up approach, then coated by octadecyltrichlorosilane (OTS) coating. The coated copper sheet exhibited excellent superhydrophobicity and impact resistance, with contact angles up to 151.4°. Furthermore, such a hydrophobic coating showed good chemical stability to the solutions of HCl (pH=3), NaOH (pH=10, 12) and 3.5 wt% NaCl. Due to the introduction of Cu-metal organic framework (Cu-MOF), the prepared OTS@MOF@Cu sheets exhibited good photothermal effects. With the irradiation of LED light source, the surface temperature rapidly rose to 58°C in 4 min. The OTS@MOF@Cu sheet with super hydrophobicity and high light-thermal conversion showed potential in active ice resistance and passive deicing.