Nanocomposite films prepared from stabilized aqueous SiO2 sols

被引：1

作者：

Plsko, Alfonz ^{[1
]}

Pagacova, Jana ^{[2
]}

Sulcova, Jana ^{[2
]}

Bielikova, Barbora ^{[1
]}

Tomagova, Miriama ^{[1
]}

Michalkova, Katarina ^{[1
]}

Rodova, Anna ^{[1
]}

机构：

[1] Alexander Dubcek Univ Trencin, Trencin 91150, Slovakia

[2] Alexander Dubcek Univ Trencin, Fac Ind Technol, Puchov 02001, Slovakia

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2014年 / 401卷

关键词：

Nanocomposite films; Silica; Sol-gel; AFM; Surface properties; SILICA MICROSPHERES; CONDENSATION; HYDROLYSIS;

D O I：

10.1016/j.jnoncrysol.2014.01.045

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Using sol-gel method, the films containing appropriate nanoparticles have a wide range of application as protective, dielectric and superhydrophobic layers. The system "stabilized aqueous SiO2 sol-acetic acid-isopropyl alcohol" was used to study the possibilities of preparation of nanocomposite SiO2 films and their properties. The properties of surface of prepared films, such as morphology, topography and adhesion forces, were studied using atomic force microscopy (AFM). The contact angle of water and diiodomethane was measured to specify the polar and disperse components of surface tension. The changes in observed properties, mainly the difference of samples X4, X5 and X6, are explained on the basis of changes in stabilization process of sols used for films preparation. For the given observed properties, the determining process is the change from electrostatic to steric stabilization of studied sols. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：129 / 133

页数：5

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