Conformal ZnO nanocomposite coatings on micro-patterned surfaces for superhydrophobicity

被引：49

作者：

Steele, Adam ^{[1
]}

Bayer, Ilker ^{[1
]}

Moran, Stephen ^{[1
]}

Cannon, Andrew ^{[2
]}

King, William P. ^{[2
]}

Loth, Eric ^{[1
]}

机构：

[1] Univ Illinois, Dept Aerosp Engn, Talbot Lab 306, Urbana, IL 61801 USA

[2] Univ Illinois, Mech Sci & Engn Dept, Mech Engn Lab 4409, Urbana, IL 61801 USA

来源：

THIN SOLID FILMS | 2010年 / 518卷 / 19期

基金：

美国国家科学基金会;

关键词：

Superhydrophobicity; Wettability; Nanocomposite; Zinc oxide; Polydimethylsiloxane; Spray deposition; Micro-molding; OIL-REPELLENT SURFACES; SUPER WATER-REPELLENT; HIERARCHICAL STRUCTURES; POLYMER SURFACE; FABRICATION; ROUGHNESS; WETTABILITY; NANOPARTICLES; DEPOSITION; RESISTANCE;

D O I：

10.1016/j.tsf.2010.03.084

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A conformal coating process is presented to transform surfaces with inherent micro-morphology into superhydrophobic surfaces with hierarchical surface structure using wet chemical spray casting. Nanocomposite coatings composed of zinc oxide nanoparticles and organosilane quaternary nitrogen compound are dispersed in solution for application. The coating is applied to a micro-patterned polydimethylsiloxane substrate with a regular array of cylindrical microposts as well as a surface with random micro-structure for the purpose of demonstrating improved non-wettability and a superhydrophobic state for water droplets. Coating surface morphology is investigated with an environmental scanning electron microscope and surface wettability performance is characterized by static and dynamic contact angle measurements. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：5426 / 5431

页数：6

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