Anti-/deicing performance of hydrophilic–superhydrophobic wetting stripe surfaces and heat transfer mechanism analysis

Ice accretion on solid surfaces poses severe and widespread threats to critical infrastructure including power transmission lines, aircraft wings, and various industrial facilities. Superhydrophobic surfaces (SHBS) are widely recognized as a promising passive anti-icing strategy with zero additional energy input during service. However, the air cushion that endows SHBS with anti-icing advantages simultaneously introduces extremely high interfacial thermal resistance, which severely hinders thermal deicing and creates an inherent contradiction between anti-icing and deicing performance. Here, we fabricated hydrophilic–superhydrophobic wetting stripe surfaces (WSS) via a facile mask spray method and systematically investigated the anti-icing and deicing performance of pure hydrophilic surface (HLS), SHBS, and WSS. The results show that WSS maintains a relatively long icing delay time close to that of pure SHBS, while achieving a much shorter melting time comparable to that of HLS, realizing a synergistic balance between anti-icing and deicing performance. Based on the experimental results, we established a unified one-dimensional thermal resistance superposition heat transfer model to correlate the anti-icing/deicing performance with the interfacial heat transfer behavior of the surfaces. This work provides theoretical guidance and technical support for the rational design, performance optimization, and engineering selection of anti-icing/deicing materials for practical service.