Water repellent ORMOSIL films for the protection of stone and other materials

被引：48

作者：

Karapanagiotis, Ioannis ^{[1
,2
]}

Pavlou, Alexandros ^{[1
]}

Manoudis, Panagiotis N. ^{[2
]}

Aifantis, Katerina E. ^{[1
,3
]}

机构：

[1] Aristotle Univ Thessaloniki, Lab Mech & Mat, Thessaloniki 54124, Greece

[2] Univ Ecclesiast Acad Thessaloniki, Dept Management & Conservat Ecclesiast Cultural H, Thessaloniki 54250, Greece

[3] Univ Arizona, Dept Civil Engn & Engn Mech, Tucson, AZ 85781 USA

来源：

MATERIALS LETTERS | 2014年 / 131卷

基金：

欧洲研究理事会;

关键词：

Superhydrophobic; Water repellent; Sol-gel; Film; Stone; Cultural heritage; SILICA NANOPARTICLES; COMPOSITE FILMS; SURFACES;

D O I：

10.1016/j.matlet.2014.05.163

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Organically modified silica (ORMOSIL) gels were produced through a sol-gel method and used to coat different materials, including glass, silicon, iron, paper, melinex and several stones, so as to examine the potential applications ranging from coatings of biomedical devices to cultural monuments. Super-hydrophobicity and water repellence were induced on the surfaces of all the treated materials, as high static (> 165 degrees) and low tilt (< 4 degrees) contact angles were achieved. The treated surfaces were studied using scanning electron microscopy, which revealed the formation of a micro/nano-structured topography. It was shown that the wettability of the ORMOSIL films was not affected by (i) the underlying substrate or (ii) the pH of the water drop. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：276 / 279

页数：4

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