Theoretical Analysis of Contact Angle and Contact Angle Hysteresis of Wenzel Drops on Superhydrophobic Surfaces.

Yufeng Li, Junyan Liu, Jialong Dong, Yufeng Du, Jinchun Han, Yuanyuan Niu

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Article in Nanomaterials (Basel, Switzerland), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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1citing papers in PubMed

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1 citing paper in PubMed.

Wetting Transition from Wenzel to Cassie States: Thermodynamic Analysis.Materials (Basel, Switzerland) · 2025
Article

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5 · Who and what money

Authors and funding

6 authors.

Yufeng LiCollege of Electrical and Power Engineering, Taiyuan University of Technology, Taiyuan 030024, China.

Junyan LiuCollege of Electrical and Power Engineering, Taiyuan University of Technology, Taiyuan 030024, China.

Jialong DongCollege of Electrical and Power Engineering, Taiyuan University of Technology, Taiyuan 030024, China.

Yufeng DuCollege of Electrical and Power Engineering, Taiyuan University of Technology, Taiyuan 030024, China.ORCID 0009-0006-1060-9014

Jinchun HanCollege of Electrical and Power Engineering, Taiyuan University of Technology, Taiyuan 030024, China.

Yuanyuan NiuCollege of Electrical and Power Engineering, Taiyuan University of Technology, Taiyuan 030024, China.

Funding

National Natural Science Foundation of China 52107021

6 · The paper itself

Abstract

Although understanding the wetting behavior of solid surfaces is crucial for numerous engineering applications, the mechanisms driving the motion of Wenzel drops on rough surfaces remain incompletely clarified. In this study, the contact angle and contact angle hysteresis of Wenzel drops on superhydrophobic surfaces are investigated from a thermodynamic perspective. The free energy of the system is theoretically analyzed, thereby determining the equilibrium contact angle. Based on the sessile drop method, the relationship between the free energy barrier and the drop volume is calculated quantitatively, enabling the determination of advancing and receding contact angles under zero free energy barrier conditions. The theoretical calculations agree well with the experimental data. These findings enhance the understanding of the interfacial interactions between Wenzel drops and superhydrophobic surfaces.

Indexed as

contact anglecontact angle hysteresismicro/nanostructured superhydrophobic surfacesWenzel state

Identifiers

PMID39683366

DOI10.3390/nano14231978

PMCPMC11643717

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