Liquid-like slippery surface with passive-multi active strategy integration for anti-icing/de-icing

• Published in: Chemical engineering journal (Lausanne, Switzerland : 1996) Vol. 474; p. 145541
• Main Authors: Zehui, Zhao, Zelinlan, Wang, Guang, Liu, Dengke, Chen, Kaiteng, Zhang, Yantong, Zhu, Jichen, Chen, Shize, Sun, Xiaolin, Liu, Huawei, Chen
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.10.2023
• Subjects: Anti-icing/de-icing; Composite coating; Electro-/photo-thermal; Slippery; Electro-/photo-thermal; Slippery; Anti-icing/de-icing; Composite coating
• ISSN: 1385-8947; 1873-3212
• DOI: 10.1016/j.cej.2023.145541

[Display omitted] •The new anti-icing/de-icing strategy combined active de-icing and passive anti-icing methods was proposed.•The multifunctional coating had both passive slippery and active electro-/photo-thermal properties.•This coating showed high-efficient dynamic and static anti-icing/de-icing behaviors. Icing formation can cause tremendous economic losses and pose a severe threat to equipment safety. To mitigate icing problems, both active de-icing and passive anti-icing materials have been utilized. Traditional active electro-thermal methods suffer from energy consumption, low efficiency, while passive slippery liquid-infused porous surfaces meet the challenges of stability during icing/de-icing cycles. In this study, a bilayer anti-icing/deicing coating combined with active photo-/electro-thermal and passive slippery properties was proposed. The prepared coating exhibited ultra-slippery, reducing ice adhesion and stability properties benefit by covalently grafting polydimethylsiloxane (PDMS) brushes in a cross-linked skeleton of epoxy. Moreover, both electricity and solar energy can be adopted for heating the surface, showing high efficient electro-thermal/photo-thermal promoted anti-icing/de-icing properties. The composite coating can reduce 29% electricity consumption and 47% de-icing time by virtue of slippery and photo-thermal properties. This functional slippery electro-/photo thermal coating with high-efficient anti-icing and de-icing performances may have broad application prospects in various industry fields.