A widely applicable method to fabricate underwater superoleophobic surfaces with low oil-adhesion on different metals by a femtosecond laser
A widely applicable method to fabricate underwater superoleophobic surfaces with low oil-adhesion on different metals by a femtosecond laser
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一种广泛适用的飞秒激光在不同金属上制造低油粘附水下超疏油表面的方法
DOI：
10.1007/s00339-017-1195-8
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发表时间：
2017-08
期刊：
影响因子：
--
通讯作者：
Xun Hou
中科院分区：
文献类型：
--
作者：
Jingzhou Zhang;Feng Chen;Qing Yang;Jiale Yong;Jinglan Huo;Yao Fang;Xun Hou
本文提出了一种利用飞秒激光烧蚀技术一步实现各种金属材料水下超疏油和低粘油的方法。激光烧蚀后的铝表面呈现出由大量微孔和纳米颗粒组成的分级粗糙组织。油在铝表面的接触角可达157°，油在1，2-二氯乙烷水溶液中的滑动角仅为7°。此外，氯仿、十六烷、正十二烷、癸烷、液体石蜡和石油醚等油在结构化铝表面上也表现出水下超疏油性。此外，其他金属，如铁，铜，钼和不锈钢，分别通过相同的方法烧蚀。由于其粗糙的微观结构和固有的高表面能，它们都表现出显着的水下超低油粘附超疏油性。这种防油污染的方法可以适用于海洋金属，无疑将用于水下精密仪器，如船舶，水下探测器和油水分离装置。
In this paper, a one-step way to realize underwater superoleophobicity and low oil-adhesion on various metals by femtosecond laser ablation was proposed. The laser ablated aluminum surface showed hierarchical rough microstructure composed of abundant micro-holes and nano-particles. The oil contact angle on the as-prepared Al surface reached up to 157° and the oil sliding angle was just 7° to a 1,2-dichloroethane droplet in water. In addition, various oils including chloroform, hexadecane,n-dodecane, decane, liquid paraffin, and petroleum ether also showed underwater superoleophobicity on the structured aluminum surface. What’s more, other metals such as iron, copper, molybdenum, and stainless steel were ablated, respectively, through the same method. Due to the formation of rough microstructures and their intrinsic high surface energy, they all exhibited remarkable underwater ultralow oil-adhesive superoleophobicity. Such one-fit-all method with anti-oil-pollution can be a suit for an ocean of metals, which undoubtedly will be used in underwater precise instruments, such as vessels, underwater detectors, and oil–water separation device.
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