Water/methanol Repellency and Preparation of Biomimetic Silver Film on Butterfly Wing
- https://doi.org/10.2991/mecs-17.2017.70How to use a DOI?
- Superhydrophobicity, Oleophobicity, Preparation, Metal film, Biomaterial.
The hydrophobicity and oleophobicity (methanol repellency) of butterfly wing surfaces were measured by a video-based contact angle (CA) meter. The multi-dimensional microstructure of the wing surfaces was characterized by a scanning electron microscope (SEM) and an atomic force microscope (AFM). The wing surface exhibits superhydrophobicity (water CA 150.8~158.5ø) and low adhesion (water sliding angle 1~4ø). Meanwhile, the wing surface displays high repellency against methanol. The critical concentrations for wetting and spreading-wetting of methanol solution on the wing surface are 60% and 85%, respectively. The wing surface is of hydro-oleophobicity. The wing surface possesses complicated hierarchical microstructures. Using the butterfly wing as a bio-template, the hydrophobic silver films were prepared. Water CA increases from metal silver's intrinsic CA 63.0ø to up to 140.6ø (Speyeria aglaja, 5 nm silver film). The micro-morphology on the wing result in the transition of metal silver from hydrophilic to hydrophobic. The butterfly wing can be used as a template for design of smart interface and functional surface.
- © 2017, 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 - Yan Fang AU - Gang Sun AU - Wanxing Wang AU - Jingshi Yin PY - 2016/06 DA - 2016/06 TI - Water/methanol Repellency and Preparation of Biomimetic Silver Film on Butterfly Wing BT - Proceedings of the 2017 2nd International Conference on Machinery, Electronics and Control Simulation (MECS 2017) PB - Atlantis Press SN - 2352-5401 UR - https://doi.org/10.2991/mecs-17.2017.70 DO - https://doi.org/10.2991/mecs-17.2017.70 ID - Fang2016/06 ER -