Dual-scale roughness produces unusually water-repellent surfaces

被引:482
作者
Shirtcliffe, NJ [1 ]
McHale, G [1 ]
Newton, MI [1 ]
Chabrol, G [1 ]
Perry, CC [1 ]
机构
[1] Nottingham Trent Univ, Sch Sci, Nottingham NG11 8NS, England
关键词
D O I
10.1002/adma.200400315
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Super-hydrophobicity can be achieved on relatively smooth surfaces. Short, wide pillars on slightly rough surfaces are shown to produce super-hydrophobic surfaces (see Figure) where neither the pillars nor the slight roughness suffice alone. This use of two length scales to create super-hydrophobic surfaces directly mimics the mechanism used by some plants including the lotus.
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页码:1929 / +
页数:5
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