Study On The Wettability And Self-cleaning Of
Butterfly Wing Surfaces
Author(s)
G. Chen, Q. Cong, Y. Feng & L. Ren
Abstract
Many biological surfaces are hydrophobic because of their complicated
composition and surface microstructure. Butterflies were selected to study their
characteristics by Confocal Light Microscopy, Scanning Electron Microscopy
and Contact Angle measurement. The contact angle of the water droplets on the
butterfly wings surface consistently measured to be more than 140º. The dust on
the surface can be easily cleaned by moving spherical droplets when the
inclining angle is larger than 3°. It can be concluded that the butterfly wing’s
surface possess a water-repellent, self-cleaning, or \“Lotus-effect” characteristic.
Contact angle measurement of the wings’ surface with and without squamas
showed that the water-repellent characteristics are a consequence of the
Keywords
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