Proceedings of the International Conference on Logistics, Engineering, Management and Computer Science

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Anisotropic Characteristic of Insect (Lepidoptera) wing Surfaces

Authors
Gang Sun, Yan Fang
Corresponding Author
Gang Sun
Available Online July 2015.
DOI
10.2991/lemcs-15.2015.122How to use a DOI?
Keywords
Superhydrophobicity; Adhesion; Self-cleaning; Anisotropism; Insect wing.
Abstract

The anisotropism, superhydrophobicity, adhesion, and chemical composition of the insect (Lepidoptera) wing surfaces are investigated by a scanning electron microscope (SEM), a contact angle (CA) meter and a Fourier transform infrared spectrometer (FT-IR). The wetting mechanism of the wing is discussed from the perspective of biological coupling. The wings display multiple-dimensional morphological anisotropism. The micrometric scales constitute the primary structure. The submicrometric vertical ribs and horizontal bridges on the scales constitute the secondary structure. The nano stripes on the vertical ribs and horizontal bridges constitute the tertiary structure. The wing surfaces are of superhydrophobicity (CA 152.5~158.6°) and low adhesion (sliding angle 1~4°). In addition, the water droplet exhibits anisotropic sliding behavior on the wing surfaces. The scale plays a crucial role in determining the self-cleaning property of the wing. The coupling effect of material element and structure element contributes to the complex wettability of the wing surface. The insect wings can be potentially used as a template for biomimetic design of functional surface with special wettability. This work may offer insights into the preparation of smart interfacial material and directional self-cleaning coatings.

Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the International Conference on Logistics, Engineering, Management and Computer Science
Series
Advances in Intelligent Systems Research
Publication Date
July 2015
ISBN
10.2991/lemcs-15.2015.122
ISSN
1951-6851
DOI
10.2991/lemcs-15.2015.122How to use a DOI?
Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

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TY  - CONF
AU  - Gang Sun
AU  - Yan Fang
PY  - 2015/07
DA  - 2015/07
TI  - Anisotropic Characteristic of Insect (Lepidoptera) wing Surfaces
BT  - Proceedings of the International Conference on Logistics, Engineering, Management and Computer Science
PB  - Atlantis Press
SP  - 633
EP  - 635
SN  - 1951-6851
UR  - https://doi.org/10.2991/lemcs-15.2015.122
DO  - 10.2991/lemcs-15.2015.122
ID  - Sun2015/07
ER  -