Wetting Characteristics of a Dual Scale Surface by Plasma Etching to Give Nanohoneycomb Structure

• 作 者: DongseobKim;SangminLee;WoonbongHwang;
• 机 构: Department of Mechanical Engineering,Pohang University of Science and Technology,Republic of Korea
• 出 处: 第七届亚澳复合材料会议
• 发表日期: 2010年期

　　Using a conventional plasma etching process, which creates microscale irregularity on an aluminum surface, then an anodization process, which further modifies the plasma etched surface with nanoscale structures, we create a surface with irregularities on two scales.This surface displays a semi-permanent superhydrophilic property, with approximately zero contact angle with water drops.The dual-scale modified aluminum surface increases the capillary force effect and reduces the energy barriers of the nanostructures.