期刊
ACS APPLIED MATERIALS & INTERFACES
卷 14, 期 24, 页码 28348-28358出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.2c04824
关键词
laser surface texturing; silicone oil heat treatment; robust superhydrophobic surface; repairability; metal; tunable water adhesion
资金
- National Research Foundation of Korea (NRF) [NRF-2021R1A2C1008248]
Superhydrophobic metallic surfaces with special properties have attracted attention in both research and industry. This study developed an eco-friendly postprocess to simplify the fabrication process and reduce the time. The laser areal fluence parameter was also explored as a way to adjust water adhesion behavior.
Superhydrophobic metallic surfaces with a water contact angle greater than 150 degrees have attracted considerable attention in both fundamental research and industrial applications due to their special properties such as antibiofouling, drag reduction, self-cleaning, anti-icing, anticorrosion, and oil-water separation. Until now, the development of superhydrophobic practical applications is mainly limited by the process complexity, long fabrication time, coating with toxic materials, and easily damaged surface structure. To reduce the fabrication time, and simplify the process for industrial applications, an eco-friendly postprocess has been developed in this research. The superhydrophobic surfaces on the laser-textured titanium, aluminum, copper, stainless steel, and nickel substrates were fabricated extremely rapidly by a simple surface modification of only a 10 min heat treatment with nontoxic silicone oil. Hydrophobic organic group absorption has been accelerated on the silicone oil heat-treated surface and has created a low-energy surface. In addition, we demonstrated the potential of using the laser areal fluence parameter, which could be an alternative to single-laser process parameters such as scanning speed, power, and step size, to fine-tune the water adhesion behavior. Therefore, a surface that integrates different water adhesion behaviors can be easily fabricated for more complex practical applications such as controlled microdroplet transportation, microfluidic systems, and certain biomedical processes. Moreover, the robustness of superhydrophobic surfaces was confirmed by abrasion tests, knife-scratch tests, chemical durability tests, and aging tests, and their repairability was evaluated for product applications in practice.
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