Abstract:

In this paper, superhydrophobic surfaces are prepared by chemical vapor deposition on template, and the anti-dust property of superhydrophobic surfaces is experimentally studied. The static contact angle of superhydrophobic surfaces is 157° and its roll-off angle is 2.6°. The superhydrophobic surfaces and bare glasses with different tilt angles are placed in the ventilated laboratory for a period of time. Then the mass, quantity and diameter of the dust particles on the surfaces are analyzed with electronic balance and micro-imaging technology to investigate the anti-dust property of superhydrophobic surfaces directly. The results show that the dust accumulation of superhydrophobic surfaces are 46%-80% of bare glass surfaces, which can effectively reduce the dust quality of 20%-54%; the shorter the time is and the bigger the tilt angles are, the more excellent the effectiveness of anti-dust property of superhydrophobic surfaces are; the changes of the dust diameter of these two kinds of surface are almost the same, but the dust quantity of superhydrophobic surfaces are 24%-83% of bare glass surfaces, which indicates that the dust quality of superhydrophobic surface is smaller than bare glass surfaces' because of the low amount of dust. The anti-dust property of superhydrophobic surfaces is remarkable.