化工学报 ›› 2018, Vol. 69 ›› Issue (S2): 365-372.DOI: 10.11949/j.issn.0438-1157.20181105

• 表面与界面工程 • 上一篇    下一篇

超疏水表面防附尘性能实验分析

吴延鹏, 郭占闯   

  1. 北京科技大学土木与资源工程学院, 北京 100083
  • 收稿日期:2018-09-28 修回日期:2018-10-23 出版日期:2018-12-31 发布日期:2018-12-31
  • 基金资助:

    国家重点研发计划项目(2016YFB0601702),国家自然科学基金面上项目(51076011)。

Experimental analysis of anti-dust property on superhydrophobic surfaces

WU Yanpeng, GUO Zhanchuang   

  1. School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, China
  • Received:2018-09-28 Revised:2018-10-23 Online:2018-12-31 Published:2018-12-31
  • Supported by:

    supported by the National Key R& D Program (2016YFB06017) and the National Natural Science Foundation of China (51076011).

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。

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.

中图分类号: