首页|Role of Multi-scale Hierarchical Structures in Regulating Wetting State and Wetting Properties of Structured Surfaces

Role of Multi-scale Hierarchical Structures in Regulating Wetting State and Wetting Properties of Structured Surfaces

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Amplifying the intrinsic wettability of substrate material by changing the solid/liquid contact area is considered to be the main mechanism for controlling the wettability of rough or structured surfaces.Through theoretical analysis and experi-mental exploration,we have found that in addition to this wettability structure amplification effect,the surface structure also simultaneously controls surface wettability by regulating the wetting state via changing the threshold Young angles of the Cassie-Baxter and Wenzel wetting regions.This wetting state regulation effect provides us with an alternative strategy to overcome the inherent limitation in surface chemistry by tailoring surface structure.The wetting state regulation effect created by multi-scale hierarchical structures is quite significant and plays is a crucial role in promoting the superhydrophobicity,superhydrophilicity and the transition between these two extreme wetting properties,as well as stabilizing the Cassie-Baxter superhydrophobic state on the fabricated lotus-like hierarchically structured Cu surface and the natural lotus leaf.

Hierarchical structureWetting state regulationWetting transitionSuperhydrophobicitySuperhydrophilicity

Yue Jiang、Xinyi Li、Zhichao Ma、Zhihui Zhang、Cuie Wen、Zhonghao Jiang、Nan Lin、Luquan Ren

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Key Laboratory of Bionic Engineering of Ministry of Education,College of Biological and Agricultural Engineering,Jilin University,Changchun 130022,China

Hubei Provincial Engineering Technology Research Center for Microgrid,College of Electrical Engineering and New Energy,China Three Gorges University,Yichang 443002,China

School of Mechanical and Aerospace Engineering,Jilin University,Changchun 130025,China

Centre for Additive Manufacturing,School of Engineering,RMIT University,Melbourne,Victoria 3001,Australia

Key Laboratory of Automobile Materials of Ministry of Education,College of Materials Science and Engineering,Jilin University,Changchun 130025,China

State Key Laboratory of Inorganic Synthesis and Preparative Chemistry,Jilin University,Changchun 130012,China

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National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNatural Science Foundation of Jilin ProvinceFoundation for Innovative Research Groups of the National Natural Science Foundation of China

521053035202505320220101209JC52021003

2024

10.1007/s42235-024-00507-5

仿生工程学报(英文版)
吉林大学

仿生工程学报(英文版)

CSTPCDEI
影响因子：0.837
ISSN：1672-6529
年,卷(期)：2024.21(3)
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