Superoleophobic Surfaces with Controllable Oil Adhesion and Their Application in Oil Transportation
Superoleophobic Surfaces with Controllable Oil Adhesion and Their Application in Oil Transportation
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DOI：
10.1002/adfm.201100775
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发表时间：
2011-11-22
影响因子：
19
通讯作者：
Jiang, Lei
中科院分区：
文献类型：
--
作者：
Yao, Xi;Gao, Jun;Jiang, Lei
控制液体粘附在许多特殊表面的应用中是一个基本问题。与不同水粘附的超疏水表面相比，可控油粘附的超疏油表面更实用，因为它导致水和油的不润湿。然而，以前的研究油/空气/固体系统中的超疏油表面上的油粘附能力是非常罕见的。在这项工作中，我们描述了一种方便的方法来制造超疏油表面通过全氟硫醇化反应的Cu（OH）2纳米结构表面，并探讨其在油滴输送的可能应用。所制备的表面表现出可控的油的粘附力取决于表面纳米结构或外部预加载的油滴。渗透Cassie状态的模型是用来帮助分析的独特现象，油的粘附。此外，我们提供了一个证据，证明石油运输的应用在油基微反应器通过我们的表面。我们的研究结果为理解可控油粘附的超疏油表面的制备原理提供了有益的尝试。
Controlling liquid adhesion is a fundamental issue in many applications for special wettable surfaces. Compared to superhydrophobic surfaces of different water adhesion, superoleophobic surfaces of controllable oil adhesion are much more practical, as it leads to non-wetting for both water and oil. However, previously the investigation for oil adhesion ability on superoleophobic surfaces in oil/air/solid system has been extremely rare. In this work, we describe a convenient approach to fabricate superoleophobic surfaces through perfluorothiolate reaction on Cu(OH)2 nanostructure surfaces and investigate their possible application in oil droplet transportation. The prepared surfaces exhibit controllable oil adhesive force depending on surface nanostructures or external preloads on the oil droplet. A model of the penetrating Cassie state is used to help analyze the unique phenomena on oil adhesion. Moreover, we provide a proof of demonstrate of oil transportation for application in oil-based microreactors via our surfaces. Our results give a useful attempt in understanding the fabrication principle of preparing superoleophobic surfaces with controllable oil adhesion.