Identification of the mechanism that confers superhydrophobicity on 316L stainless steel

被引：10

作者：

Escobar, Ana M. ^{[1
]}

Llorca-Isern, Nuria ^{[1
]}

Rius-Ayra, Oriol ^{[1
]}

机构：

[1] Univ Barcelona, Fac Quim, CPCM Dept Ciencia Mat & Engn Met, E-08028 Barcelona, Spain

来源：

MATERIALS CHARACTERIZATION | 2016年 / 111卷

关键词：

Superhydrophobicity; Stainless steel; Coating; Electrolytic reaction; Self assembly; Hierarchical structures; NICKEL METAL; SURFACES; FABRICATION; WATER; DURABILITY; RESISTANT; COATINGS; SCRATCH; LAYERS; FILMS;

D O I：

10.1016/j.matchar.2015.11.026

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study develops a rapid method to confer superhydrophobicity on 316L stainless steel surfaces with an amphiphilic reagent such as dodecanoic acid. The highest contact angle (approaching 173 degrees) was obtained after forming hierarchical structures with a non-aqueous electrolyte by an electrolytic process. Our goal was to induce superhydrophobicity directly on 316L stainless steel substrates and to establish which molecules cause the effect. The superhydrophobic behaviour is analysed by contact angle measurements, scanning electron microscopy (SEM), IR spectroscopy and atomic force microscopy (AFM). The growth mechanism is analysed using FE-SEM, TOF-SIMS and XPS in order to determine the molecules involved in the reaction and the growth. The TOF-SIMS analysis revealed that the Ni2+ ions react with lauric acid to create an ester on the stainless steel surface. (C) 2015 Elsevier Inc. All rights reserved.

引用

页码：162 / 169

页数：8

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