Facile methods for fabricating wettability patterns on metal substrates

润湿 材料科学 纳米技术 复合材料
作者
Wangyu Liu,Zhen Liang,Weigui Xie,Guangwen Huang,Yuanqiang Luo
出处
期刊:Surface Innovations 卷期号:12 (1-2): 62-72 被引量:1
标识
DOI:10.1680/jsuin.22.01075
摘要

Extreme-wettability-patterned surfaces have attracted great attention due to their excellent application prospects for liquid manipulation. However, developing a simple and universal method to fabricate wettability patterns on a variety of metals remains a great challenge. In this work, three specific preparation approaches were developed to fabricate wettability patterns on copper substrates using chemical processing combined with mask technology. Surface wettability can be suitably controlled by changing the solution concentration and immersion time. The surface has good stability and low pollution under external action. The three preparation methods have differences in preparation process, wettability and mask function. On the basis of these approaches, various complex wettability patterns could be prepared on different metal substrates using designed masks. Furthermore, various wettability-patterned surfaces were successfully fabricated for liquid manipulation applications, such as controlling the fluid shape and water transport. The methods proposed are expected to have promising application potential in patternable printing, water collection and heat-dissipation devices.
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