Sol-gel derived coatings for the conservation of steel

被引：4

作者：

Kiele, Erika ^{[1
]}

Senvaitiene, Jurate ^{[1
,2
]}

Griguceviciene, Asta ^{[3
]}

Ramanauskas, Rimantas ^{[3
]}

Raudonis, Rimantas ^{[1
]}

Kareiva, Aivaras ^{[4
]}

机构：

[1] Vilnius State Univ, Dept Appl Chem, Fac Chem, Naugarduko 24, LT-03225 Vilnius, Lithuania

[2] Lithuanian Art Museum, Pranas Gudynas Ctr Restorat, LT-01135 Vilnius, Lithuania

[3] Inst Chem, Ctr Phys Sci & Technol, LT-01108 Vilnius, Lithuania

[4] Vilnius State Univ, Fac Chem, Dept Inorgan Chem, LT-03225 Vilnius, Lithuania

来源：

PROCESSING AND APPLICATION OF CERAMICS | 2015年 / 9卷 / 02期

关键词：

sol-gel method; steel; silica coatings; conservation; CORROSION-RESISTANCE; STAINLESS-STEEL; METALS; PROTECTION;

D O I：

10.2298/PAC1502081K

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：

In this paper, sol-gel processing route has been applied and investigated for the conservation of steel. Nano-silica coatings on steel surface have been prepared using tetraethylorthosilicate (TEOS) as a starting material. The methyl-modified silica sols were obtained by mixing of 3 mas.% SiO2 sol solution with hexamethyldisilozane (HMDS). The surface of steel was coated by dip-coating technique. In order to compare the characteristics of coatings, the steel substrates were also coated with commercial polymers Paraloid B67, Cosmolloid H80 and Antik Patina. The surface morphology changes of the uncoated and coated specimens before and after photochemical ageing were investigated by scanning electron microscopy and atomic force microscopy. The structure of the prepared coatings was also investigated by FTIR spectroscopy. The hydrophobicity of surfaces was evaluated by contact angle measurements. Potentiodynamic measurements were obtained in order to compare corrosion parameters of the coatings.

引用

页码：81 / 89

页数：9

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