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Updated: Jul 10, 2026
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Fabrication of Superhydrophobic Metal Surfaces for Anti-Icing Applications
Published on: August 15, 2018
Facile method to fabricate raspberry-like particulate films for superhydrophobic surfaces
1Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan.
Langmuir : the ACS Journal of Surfaces and Colloids
|November 8, 2007
Summary
Researchers developed a simple method to create superhydrophobic surfaces using raspberry-like silica particle films. This dual-scale roughness enhances water repellency, achieving high contact angles for advanced material applications.
Area of Science:
- Materials Science
- Surface Chemistry
Background:
- Superhydrophobic surfaces mimic natural water-repellent phenomena.
- Fabricating robust superhydrophobic surfaces with controllable structures remains a challenge.
Purpose of the Study:
- To develop a facile method for creating raspberry-like particulate films for superhydrophobic surfaces.
- To investigate the effect of dual-scale roughness on superhydrophobic performance.
Main Methods:
- Layer-by-layer assembly of silica particles with microscale and nanoscale dimensions.
- Surface modification using dodecyltrichlorosilane.
Main Results:
- Successfully fabricated raspberry-like particulate films with micro/nano dual-scale roughness.
- Achieved high water contact angles: 169° (advancing) and 165° (receding).
- Demonstrated the significant role of scale ratio and film regularity in superhydrophobicity.
Conclusions:
- The proposed layer-by-layer assembly method is effective for fabricating superhydrophobic surfaces.
- Dual-scale roughness is crucial for achieving excellent water repellency.
- The developed surfaces show potential for various applications requiring water-repellent properties.
