期刊
APPLIED SURFACE SCIENCE
卷 257, 期 5, 页码 1540-1543出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2010.08.092
关键词
Superhydrophobicity; Icephobicity; Anodizing; RF-sputtering; PTFE; Aluminum
类别
资金
- CIGELE partners
- Hydro-Quebec
- Hydro One
- Reseau Transport d'Electricite (RTE)
- Electricite de France (EDF)
- Alcan Cable
- K-Line Insulators
- Tyco Electronics
- Dual-ADE
- FUQAC
A superhydrophobic and icephobic surface were investigated on aluminum alloy substrate. Anodizing was used first to create a micro-nanostructured aluminum oxide underlayer on the alloy substrate. In a second step, the rough surface was coated with RF-sputtered polytetrafluoroethylene (PTFE or Teflon (R)). Scanning electron microscopy images showed a bird's nest-like structure on the anodized surface. The RF-sputtered PTFE coating exhibited a high static contact angle of similar to 165 degrees with a very low contact angle hysteresis of similar to 3 degrees. X-ray photoelectron spectroscopy (XPS) results showed high quantities of CF3 and CF2 groups, which are responsible for the hydrophobic behavior of the coatings. The performance of this superhydrophobic film was studied under atmospheric icing conditions. These results showed that on superhydrophobic surfaces ice-adhesion strength was 3.5 times lower than on the polished aluminum substrate. (c) 2010 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据