Enhancement of Active Corrosion Protection via Combination of Inhibitor-Loaded Nanocontainers

被引：286

作者：

Tedim, J. ^{[1
]}

Poznyak, S. K. ^{[1
]}

Kuznetsova, A. ^{[1
]}

Raps, D. ^{[2
]}

Hack, T. ^{[2
]}

Zheludkevich, M. L. ^{[1
]}

Ferreira, M. G. S. ^{[1
,3
]}

机构：

[1] Univ Aveiro, Dept Ceram & Glass Engn, CICECO, P-3810193 Aveiro, Portugal

[2] EADS Innovat Works, D-81663 Munich, Germany

[3] Univ Tecn Lisboa, IST, ICEMS, P-1049001 Lisbon, Portugal

来源：

ACS APPLIED MATERIALS & INTERFACES | 2010年 / 2卷 / 05期

关键词：

nanocontainer; coating; corrosion; inhibitor; self-healing; AA2024; LAYERED DOUBLE HYDROXIDES; ANTICORROSION COATINGS; FILIFORM CORROSION; ORGANIC COATINGS; PLANT-SURFACES; MILD-STEEL; AA2024-T3; PIGMENTS; RELEASE; PHOSPHATE;

D O I：

10.1021/am100174t

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The present work reports the synthesis of layered double hydroxides (LDHs) nanocontainers loaded with different corrosion inhibitors (vanadate, phosphate, and 2-mercaptobenzothiazolate) and the characterization of the resulting pigments by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The anticorrosion activity of these nanocontainers with respect to aluminum alloy AA2024 was investigated by electrochemical impedance spectroscopy (EIS). The bare metallic substrates were immersed in dispersions of nanocontainers in sodium chloride solution and tested to understand the inhibition mechanisms and efficiency. The nanocontainers were also incorporated into commercial coatings used for aeronautical applications to study the active corrosion protection properties in systems of industrial relevance. The results show that an enhancement of the active protection effect can be reached when nanocontainers loaded with different inhibitors are combined in the same protective coating system.

引用

页码：1528 / 1535

页数：8

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