A simple method to generate hierarchical nanoscale structures on microwrinkles for hydrophobic applications

作者：Kim Seong Jin; Park Hee Jin; Lee Joo Chul; Park Seonghun; Ireland Peter; Park Sang Hu

来源：Materials Letters, 2013, 105: 50-53.

DOI：10.1016/j.matlet.2013.04.043

• Microwrinkles
• Hierarchical structures
• Biomimetics
• Repetitive dividing method

We propose an effective method of fabricating hierarchical nanoscale structures on microwrinkles for use in diverse applications. To do this, we introduce a wrinkling process to engender fine wrinkles using a method of repetitive dividing volume of ultraviolet curable resin. A plasma treatment technique then generates nanoscale protrusions on the microwrinkles. With this simple two-step process, we create interesting hierarchical micro- and nanoscale structures that exist in natural objects, such as the surface structure of a lotus leaf. We investigate changes in the contact angles on a flat, hierarchical structure. The proposed method presents a simple means of creating micro- and nanoscale hierarchical structures for hydrophobic and biomimetic applications.

• 出版日期2013-8-15