Journal of Bionic Engineering ›› 2023, Vol. 20 ›› Issue (5): 1891-1904.doi: 10.1007/s42235-023-00381-7
A Super-robust Armoured Superhydrophobic Surface with Excellent Anti-icing Ability
Peng Wang1,2,3; Hui Zhao1,2; Boyuan Zheng1,2; Ximei Guan1,2; Bin Sun1,2; Yongli Liao4; Ying Yue1,2; Wei Duan1,2 ; Haimin Ding1,2
- 1 School of Energy, Power and Mechanical Engineering, North China Electric Power University, Baoding 071000, China 2 Hebei Key Laboratory of Electric Machinery Health Maintenance and Failure Prevention, North China Electric Power University, Baoding 071003, China 3 Key Laboratory of Icing and Anti/De-Icing, China Aerodynamics Research and Development Center, Mianyang 621000, Sichuan, China 4 Electric Power Research Institute, China South Power Grid, Guangzhou, China
A Super-robust Armoured Superhydrophobic Surface with Excellent Anti-icing Ability
Peng Wang1,2,3; Hui Zhao1,2; Boyuan Zheng1,2; Ximei Guan1,2; Bin Sun1,2; Yongli Liao4; Ying Yue1,2; Wei Duan1,2 ; Haimin Ding1,2
- 1 School of Energy, Power and Mechanical Engineering, North China Electric Power University, Baoding 071000, China 2 Hebei Key Laboratory of Electric Machinery Health Maintenance and Failure Prevention, North China Electric Power University, Baoding 071003, China 3 Key Laboratory of Icing and Anti/De-Icing, China Aerodynamics Research and Development Center, Mianyang 621000, Sichuan, China 4 Electric Power Research Institute, China South Power Grid, Guangzhou, China
摘要： It has been proved that the construction of interconnected armour on superhydrophobic surface could significantly enhance the mechanical robustness. Here, a new kind of armour with frame/protrusion hybrid structure was achieved by nanosecond laser technology. Then, this armoured superhydrophobic surface demonstrated excellent durability, which could withstand linear abrasion (~?3 N press) 800 cycles, water jet test (1.0 MPa pressure) 40 times and 100 °C treatment 18 days. Particularly, the armoured superhydrophobic sample shows outstanding anti-icing ability, which can speed up the supercooled water dropping (no adhesion within 2 h), increase the freezing delay time by?~?3 times and maintain low adhesion force (less than 35 kPa) after 30 icing/de-icing cycles. Further finite element analysis and theoretical modeling proved that the developed frame/protuberance hybrid structure could effectively enhance the durability. The relatively low surface accuracy in this study can significantly reduce processing cost, which provides a bright future for the practical application of armour superhydrophobic materials