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.

摘要：

采用气相模板沉积法制备超疏水表面，并对其防附尘性能进行实验研究。所制备的超疏水表面接触角为157°，滚动角为2.6°。将不同倾角的超疏水表面和普通载玻片置于自然通风良好的实验室中，考察其防附尘性能，静置一段时间后，结合显微成像技术，对表面粉尘的质量、数量和直径进行分析。结果表明：超疏水表面粉尘质量是普通载玻片的46%～80%；静置时间越短，倾角越大，超疏水表面防附尘效果越显著；两种表面粉尘直径变化几乎一致，但超疏水表面粉尘数量是普通表面的24%～83%，超疏水表面防附尘效果显著。