Kim Tae-il, Tahk Dongha, Lee Hong H
School of Chemical and Biological Engineering, Seoul National University, Seoul 151-742, Korea.
Langmuir. 2009 Jun 2;25(11):6576-9. doi: 10.1021/la900106s.
A facile fabrication method is presented for a super-repellent surface, in which a silicon wafer is etched with a wet chemical method and treated by a fluorinated self-assembled monolayer. This surface is composed of harshly rough nanostructures and highly dense nanoholes. The contact angle of both water and oil with the surface is larger than 150 degrees. The self-cleaning capability of the surface allows for the removal of sticky powders with glycerin droplet. Any desired part(s) of the super-repellent surface can be turned superamphiphilic by simply exposing the desired part(s) to ultraviolet light.
本文提出了一种用于制备超疏水表面的简便制造方法，其中硅片通过湿化学方法蚀刻并用氟化自组装单分子层处理。该表面由粗糙的纳米结构和高密度的纳米孔组成。水和油与该表面的接触角均大于150度。该表面的自清洁能力允许用甘油滴去除粘性粉末。通过简单地将超疏水表面的任何所需部分暴露于紫外线下，即可使其变为超双亲性。
