High Adhesive Superhydrophobicity and Wetting Mechanism of Locust Wing Surface

Gang Sun; Yan Fang

doi:10.4028/www.scientific.net/AMR.1089.190

Paper Titles

Research on Structural and Ultra-Structural Changes of Grass Carp during Different Crisp Periods
p.167

Study on Irradiation Cross-Linking Modification and Biodegradability of Poly (Butylene Succinate)
p.172

A Comparative Study on the Wettability between Butterfly and Locust Wing Surface
p.181

Corrosion Behaviors of Li-B-H Films in Air
p.185

High Adhesive Superhydrophobicity and Wetting Mechanism of Locust Wing Surface
p.190

Low Adhesive Superhydrophobicity and Self-Cleaning Property of Moth Wing
p.194

Self-Cleaning Characteristic of the Insect (Lepidoptera) Wing Surfaces
p.198

The Characteristics of Facet Coatings on Diode Lasers
p.202

Microwave Absorbing Performance of Fe₃O₄/CNFs Prepared by Chemical Coprecipitation
p.206

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1089High Adhesive Superhydrophobicity and Wetting...

High Adhesive Superhydrophobicity and Wetting Mechanism of Locust Wing Surface

Abstract:

The complex wettability, chemical composition and microstructure of locust wing surface were investigated by a video-based contact angle (CA) meter, a Fourier transform infrared spectrometer (FT-IR) and a scanning electron microscope (SEM). A model for hydrophobicity of wing surface was established on the basis of Cassie equation. The wetting mechanism was discussed from the perspective of biological coupling. The wing surface is a waxy layer composed mainly of long chain hydrocarbon, tallate and fatty-acid alcohol, possesses multiple-dimensional rough microstructures including primary structure (wing vein grids), secondary structure (regularly arraying micrometric pillar gibbosities), and tertiary structure (nanocorrugations). The diameter, height, and spacing of pillar gibbosity are 3.0~10.2 μm, 3.4~9.2 μm, and 7.5~18.5 μm, respectively. Locust wing surface is of high adhesive superhydrophobicity (CA 150.1~157.3°). The complex wettability of the wing surface ascribes to coupling effect of material element (waxy crystal) and structural element (hierarchical rough microstructure). Locust wing can be potentially used as a biomimetic template for design of special functional surface. This work may bring insights for preparation of micro-controllable superhydrophobic surface and no-loss microfluidic channels.

You might also be interested in these eBooks

Advanced Manufacturing Technology and Materials

View Preview

Info:

Periodical:

Advanced Materials Research (Volume 1089)

Pages:

190-193

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1089.190

Citation:

Cite this paper

Online since:

January 2015

Authors:

Gang Sun, Yan Fang*

Keywords:

Adhesion, Biological Coupling, Complex Wettability, Locust Wing, Superhydrophobicity

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] G. Sun, Y. Fang, Q. Cong, L.Q. Ren, Anisotropism of the non-smooth surface of butterfly wing, J. Bion. Eng. 6 (2009) 71-76.

DOI: 10.1016/s1672-6529(08)60094-3

Google Scholar

[2] Y. Fang, G. Sun, T.Q. Wang, Q. Cong, Hydrophobicity mechanism of non-smooth pattern on surface of butterfly wing, Chin. Sci. Bull. 52 (2007) 711-716.

DOI: 10.1007/s11434-007-0120-5

Google Scholar

[3] L. Feng, S.H. Li, Y.S. Li, H.J. Li, L.J. Zhang, J. Zhai, Y.L. Song, B.Q. Liu, L. Jiang, D.B. Zhu, Super-hydrophobic surfaces: from natural to artificial, Adv. Mater. 14 (2002) 1857-1860.

DOI: 10.1002/adma.200290020

Google Scholar