Superhydrophobic and lipophobic properties of self-organized honeycomb and pincushion structures.
Superhydrophobic and lipophobic properties of self-organized honeycomb and pincushion structures.
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DOI：
10.1021/la050013w
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发表时间：
2005-03
期刊：
影响因子：
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通讯作者：
H. Yabu;Masafumi Takebayashi;Masaru Tanaka;M. Shimomura
中科院分区：
文献类型：
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作者：
H. Yabu;Masafumi Takebayashi;Masaru Tanaka;M. Shimomura
本报告描述了简单的制备超疏水和疏脂表面的自组织。在潮湿条件下，通过溶液浇铸法制备了具有六方孔排列的含氟聚合物微孔聚合物膜。通过蒸发冷却在铸膜液的表面上形成受阻堆积的水微滴。在溶剂蒸发之后，以水滴阵列作为模板形成蜂窝状图案的聚合物膜;水滴本身在溶剂之后很快蒸发。两个多孔聚合物层垂直堆叠，在六边形顶点处由柱分开。在使用胶带剥离顶层之后，获得枕状结构。在这里，我们表明，实现了超疏水行为，最大接触角，170度，观察到使用这些枕形结构。理论计算与实验结果吻合较好。并对薄膜的疏油性进行了讨论。
This report describes the simple preparation of superhydrophobic and lipophobic surfaces by self-organization. Microporous polymer films of a fluorinated polymer with hexagonally arranged pores were prepared by casting from solution under humid conditions. Hexagonally packed water microdroplets were formed by evaporative cooling on the surface of the casting solution. After solvent evaporation, a honeycomb-patterned polymer film was formed with the water droplet array acting as a template; the water droplets themselves evaporated soon after the solvent. Two porous polymer layers were stacked vertically, separated by pillars at the hexagon vertexes. After peeling off the top layer using adhesive tape, a pincushion-like structure was obtained. Here, we show that superhydrophobic behavior was achieved, with the maximum contact angle, 170 degrees, observed using these pincushion structures. Theoretical calculations fit the experimental results well. The lipophobic properties of the films are also discussed.