流体机械Issue(2)：57-61,13,6.DOI:10.3969/j.issn.1005-0329.2013.12.014
超疏水表面液滴的冷凝成长特性研究
Characteristic of Condensed Droplet on the Superhydrophobic Patterned Surface
摘要
Abstract
The square-shaped pillars superhydrophobic surfaces were prepared with the polydimethyl -siloxane ( PDMS) sub-strate using photolithography techniques .The growth dynamics of water droplets condensed on a superhydrophobic geometrically patterned surface were studied .Experimental results show that there are three steps during the growing of the water droplets on the superhydrophbic patterned surface at low temperature .The first step is that the small droplets grow lonely .The second step is that the small droplets coalesce and the last step is that the big droplets grow .Furthermore, the droplets on the surface are Wen-zel-Cassie or Wenzel state at first .With increasing of the size of the droplets , the fraction of the solid-liquid contact area and the solid apparent area increases .The Wenzel-Cassie state of the droplets on the superhydrophobic surfaces transform into the Wenzel state when the size of the droplets increase .关键词
超疏水表面/Wenzel状态/Cassie状态/冷凝/浸润性Key words
superhydrophobic surface/wenzel state/cassie state/condensation/wetting分类
机械制造引用本文复制引用
贺吉昌,贾志海,雷威,蔡泰民..超疏水表面液滴的冷凝成长特性研究[J].流体机械,2014,(2):57-61,13,6.基金项目
国家自然科学基金项目（51176123）；上海市自然科学基金项目（11ZR1424800）；高等学校博士学科点专项科研基金资助课题 （）
