Anisotropic Characteristic of Insect (Lepidoptera) wing Surfaces
- 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/).
Cite this article
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 -