期刊
JOURNAL OF MATERIALS SCIENCE
卷 49, 期 4, 页码 1839-1853出版社
SPRINGER
DOI: 10.1007/s10853-013-7872-x
关键词
-
资金
- Directorate For Engineering
- Div Of Chem, Bioeng, Env, & Transp Sys [1159830] Funding Source: National Science Foundation
- Office Of The Director
- EPSCoR [1003970] Funding Source: National Science Foundation
In this study, superamphiphobic (SAP) metallic aluminum (Al) alloy 2024 surfaces were produced with water and oil contact angles (CAs) of more than 150 degrees and sliding angles of less than 10 degrees. The two simple and environmentally friendly techniques of mechanical sanding and boiling water treatment were used to introduce micro and nanoscale roughnesses, respectively, which resulted in a hierarchical morphology. Surface energy of the rough surfaces was reduced by coating them with 1H, 1H, 2H, 2H-perfluorodecyltriethoxysilane agent. SAP property was absent for samples with micro or nanoroughness only, and it emerged only after both kinds of roughnesses were introduced. The highest CAs approaching 158 degrees for water, 156 degrees for ethylene glycol, and 154 degrees for peanut oil were obtained after forming hierarchical structures involving shapes of microgrooves obtained by one-directional sanding and nanograss by immersing in boiling water for 1 min. The effects of the two approaches of random and one-directional sanding using various sandpaper grit sizes, and different time periods of treatment with boiling water on the wettability of surfaces were also investigated. In addition, fundamental wetting models were used to explain the experimental results obtained. SAP Al surfaces could see a wide range of applications in fields such as self-cleaning, anti-icing, anticorrosion, oil transportation, energy harvesting, and microfluidics.
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