| WANG Xi-kui,ZHANG You-fa,YU Xin-quan.Research Progress and Application Status of Biomimetic Hybrid Wetting Surfaces[J],49(12):93-115 |
| Research Progress and Application Status of Biomimetic Hybrid Wetting Surfaces |
| Received:July 05, 2020 Revised:August 25, 2020 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2020.12.012 |
| KeyWord:superhydrophobic superhydrophilic hybrid wetting condensation water collection heat transfer |
| Author | Institution |
| WANG Xi-kui |
School of Electrical and Mechanical Engineering, Pingdingshan University, Pingdingshan , China;a.School of Materials Science and Engineering b.Jiangsu Key Laboratory of Advanced Metallic Materials, Southeast University, Nanjing , China |
| ZHANG You-fa |
a.School of Materials Science and Engineering b.Jiangsu Key Laboratory of Advanced Metallic Materials, Southeast University, Nanjing , China |
| YU Xin-quan |
a.School of Materials Science and Engineering b.Jiangsu Key Laboratory of Advanced Metallic Materials, Southeast University, Nanjing , China |
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| Abstract: |
| The work mainly introduced the typical wetting theory of solid surface, including Young’s equation, Wenzel model, Cassie-Baxter model, transformation theory between Wenzel and Cassie model and dynamic wetting model. The development trend, surface preparation technology and surface condensation characteristics of bionic hybrid wetting surface at home and abroad were summarized. The application status and potential application prospect of bionic hybrid wetting surface in water collection, heat exchange, desalination, micro fluid control and anti-icing were described. It was revealed that hybrid wetting surface was beneficial to strengthen condensation and improve the droplets departure. The main reason of heat transfer efficiency was that the hydrophilic micro area strengthened the nucleation and condensation on the surface, and the superhydrophobic micro area ensured the removal performance of the droplet, so that the surface condensation and removal reached a relative balance and ensured the overall effect. At last, it pointed out that at present, there were some problems such as expensive equipment, complex preparation process and high cost, which limited the application of batch preparation of bionic hybrid wetting surface. The advantages of coating control technology for mass preparation and application in the preparation of hybrid wetting surfaces were expounded, and the industrial application and development direction of hybrid wetting surfaces were prospected. |
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