Criteria for ultralyophobic surfaces
Criteria for ultralyophobic surfaces
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DOI：
10.1021/la036481s
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发表时间：
2004-06-08
期刊：
影响因子：
3.9
通讯作者：
Extrand, CW
中科院分区：
文献类型：
--
作者：
Extrand, CW
非常粗糙的表面可以悬浮小液滴并产生非常大的接触角。这种行为通常被称为超疏水性或超级排斥性。提出了两个标准，必须满足调用ultralyophobicity：接触线密度标准和粗糙高度标准。所提出的标准进行了测试，使用文献中的实验数据，并被发现正确预测悬浮液的小水滴模型粗糙表面的各种各样的凹凸形状，尺寸和间距。
Very rough surfaces can suspend small liquid drops and produce very large contact angles. This behavior often is referred to as ultralyophobicity or super repellency. It is proposed that two criteria must be met to invoke ultralyophobicity: a contact line density criterion and asperity height criterion. The proposed criteria were tested using experimental data available in the literature and were found to correctly predict suspension of small water drops on model rough surfaces with a wide variety of asperity shapes, sizes, and spacing.