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Dynamic Behavior of Liquids on Superspreading Surfaces: From Essential Mechanisms to Applications
Lu Dai1, Zhe Xu1,2, Ye Tian1,3,2
1Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China.
ACS Nano
|March 27, 2025
Summary
This review explores liquid dynamics on superspreading surfaces, detailing impact, spreading, and film formation. New metrics like superspreading time (ST) offer deeper insights than static contact angles (CA).
Area of Science:
- Surface Science
- Fluid Dynamics
- Materials Science
Background:
- Liquid-surface interactions are fundamental but complex, especially dynamic behaviors on superspreading surfaces.
- Traditional contact angle (CA) measurements are inadequate for capturing dynamic spreading processes.
- Superspreading time (ST) and radius-time curves (SRST) offer advanced characterization of dynamic liquid behaviors.
Purpose of the Study:
- To systematically review the dynamic behaviors of liquids on superspreading surfaces.
- To analyze the underlying mechanisms and influencing factors of these dynamic behaviors.
- To categorize and discuss applications based on unsteady-state and steady-state liquid films.
Main Methods:
- Literature review of dynamic liquid behaviors on superspreading surfaces.
- Analysis of mechanisms, influencing factors, and characterization methods (ST, SRST).
- Categorization of applications into unsteady-state and steady-state liquid film uses.
Main Results:
- Dynamic behaviors include impact, spreading, film formation, and phase transition.
- Superspreading surfaces enable applications in enhanced thermal management, antifouling coatings, and drag reduction.
- Unsteady-state applications utilize dynamic processes, while steady-state applications focus on stable thin films.
Conclusions:
- Superspreading surfaces offer diverse applications leveraging dynamic liquid behaviors.
- Further research is needed to address challenges in fundamental understanding and industrial implementation.
- This review aims to stimulate further research in superspreading mechanisms and applications.
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