Creation of Superhydrophobic Stainless Steel Surfaces by Acid Treatments and Hydrophobic Film Deposition

被引：174

作者：

Li, Lester ^{[1
,2
]}

Breedveld, Victor ^{[1
]}

Hess, Dennis W. ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA

[2] Georgia Inst Technol, Inst Paper Sci & Technol, Atlanta, GA 30318 USA

来源：

ACS APPLIED MATERIALS & INTERFACES | 2012年 / 4卷 / 09期

关键词：

superhydrophobic; stainless steel; 304; 316; hydrofluoric acid; selective etch; SELF-CLEANING PROPERTIES; CORROSION BEHAVIOR; NITRIC-ACID; FABRICATION; ALUMINUM; COPPER; WATER; IRON; WETTABILITY; BOEHMITE;

D O I：

10.1021/am301666c

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this work, we present a method to render stainless steel surfaces superhydrophobic while maintaining their corrosion resistance. Creation of surface roughness on 304 and 316 grade stainless steels was performed using a hydrofluoric acid bath. New insight into the etch process is developed through a detailed analysis of the chemical and physical changes that occur on the stainless steel surfaces. As a result of intergranular corrosion, along with metallic oxide and fluoride redeposition, surface roughness was generated on the nano- and microscales. Differences in alloy composition between 304 and 316 grades of stainless steel led to variations in etch rate and different levels of surface roughness for similar etch times. After fluorocarbon film deposition to lower the surface energy, etched samples of 304 and 316 stainless steel displayed maximum static water contact angles of 159.9 and 146.6 degrees, respectively. However, etching in HF also caused both grades of stainless steel to be susceptible to corrosion. By passivating the HF-etched samples in a nitric acid bath, the corrosion resistant properties of stainless steels were recovered. When a three step process was used, consisting of etching, passivation and fluorocarbon deposition, 304 and 316 stainless steel samples exhibited maximum contact angles of 157.3 and 134.9 degrees, respectively, while maintaining corrosion resistance.

引用

页码：4549 / 4556

页数：8

共 48 条

[1] Nanonails: A simple geometrical approach to electrically tunable superlyophobic surfaces [J].

Ahuja, A. ;

Taylor, J. A. ;

Lifton, V. ;

Sidorenko, A. A. ;

Salamon, T. R. ;

Lobaton, E. J. ;

Kolodner, P. ;

Krupenkin, T. N. .

LANGMUIR, 2008, 24 (01) :9-14

[2]

[Anonymous], 2008, DECHEMA CORR HDB REV

[3] Fabrication of "roll-off" and "sticky" superhydrophobic cellulose surfaces via plasma processing [J].

Balu, Balarnurali ;

Breedveld, Victor ;

Hess, Dennis W. .

LANGMUIR, 2008, 24 (09) :4785-4790

[4] Wetting properties of the multiscaled nanostructured polymer and metallic superhydrophobic surfaces [J].

Bormashenko, Edward ;

Stein, Tamir ;

Whyman, Gene ;

Bormashenko, Yelena ;

Pogreb, Roman .

LANGMUIR, 2006, 22 (24) :9982-9985

[5] Preparation of Cu-Coated Stainless Steel Surfaces for Superhydrophobic Investigation [J].

Chen, Li Juan ;

Zhao, Jun Wei .

JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY, 2010, 31 (09) :1245-1248

[6] Preparation of super-hydrophobic surface on stainless steel [J].

Chen, Li Juan ;

Chen, Miao ;

Zhou, Hui Di ;

Chen, Jian Min .

APPLIED SURFACE SCIENCE, 2008, 255 (05) :3459-3462

[7] Three-Dimensional Morphology Control during Wet Chemical Synthesis of Porous Chromium Oxide Spheres [J].

Chen, Lifang ;

Song, Zhi ;

Wang, Xue ;

Prikhodko, Sergey V. ;

Hu, Juncheng ;

Kodambaka, Suneel ;

Richards, Ryan .

ACS APPLIED MATERIALS & INTERFACES, 2009, 1 (09) :1931-1937

[8] Large slip of aqueous liquid flow over a nanoengineered superhydrophobic surface - art. no. 066001 [J].

Choi, CH ;

Kim, CJ .

PHYSICAL REVIEW LETTERS, 2006, 96 (06)

[9]

Cobb H.M., 2010, HIST STAINLESS STEEL

[10]

Craig B.D., 1995, HDB CORROSION DATA

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