Journal of Bionic Engineering ›› 2023, Vol. 20 ›› Issue (5): 1891-1904.doi: 10.1007/s42235-023-00381-7

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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. 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
  • 出版日期:2023-08-26 发布日期:2023-09-06
  • 通讯作者: Peng Wang E-mail:wang.peng.ncepu@foxmail.com
  • 作者简介: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

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. 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
  • Online:2023-08-26 Published:2023-09-06
  • Contact: Peng Wang E-mail:wang.peng.ncepu@foxmail.com
  • About author: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

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

关键词: Bionic coating , · Superhydrophobic , · Robust , · Armour , · Anti-icing

Abstract: 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

Key words: Bionic coating , · Superhydrophobic , · Robust , · Armour , · Anti-icing