Smart inhibition action of layered double hydroxide nanocontainers in zinc-rich epoxy coating for active corrosion protection of carbon steel substrate

被引：79

作者：

Hayatdavoudi, Hadis ^{[1
]}

Rahsepar, Mansour ^{[1
]}

机构：

[1] Shiraz Univ, Sch Engn, Dept Mat Sci & Engn, Zand Blvd, Shiraz 7134851154, Iran

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 711卷

关键词：

Smart coating; Layered double hydroxide; Zinc-rich coating; Active protection; Carbon steel; PIGMENT;

D O I：

10.1016/j.jallcom.2017.04.044

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this study, inhibitor-intercalated layered double hydroxide (LDH) nanocontainers were dispersed in zinc-rich epoxy (ZRE) coating and were used for corrosion protection of carbon steel substrate. The electrochemical impedance spectroscopy, potential-time measurement and salt spray fog testing were conducted to investigate the effect of LDH nanocontainers on protection performance of ZRE coating. It was observed that addition of LDH nanocontainers into ZRE coating resulted in potent corrosion inhibition of carbon steel substrate due to smart entrapment of the penetrating chloride anions and on demand release of corrosion inhibitor species. It was concluded that superior protection performance of the LDH-ZRE coating is due to combination of barrier effect, sacrificial cathodic protection and smart inhibition action. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：560 / 567

页数：8

共 23 条

[1]

Bard A. J., 1985, STANDARD POTENTIALS

[2] Influence of microwave radiation on the textural properties of layered double hydroxides [J].

Benito, P. ;

LabajoS, F. M. ;

Rocha, J. ;

Rives, V. .

MICROPOROUS AND MESOPOROUS MATERIALS, 2006, 94 (1-3) :148-158

[3] Study of iron benzoate as a novel steel corrosion inhibitor pigment for protective paint films [J].

Blustein, G. ;

Di Sarli, A. R. ;

Jaen, J. A. ;

Romagnoli, R. ;

Del Amo, B. .

CORROSION SCIENCE, 2007, 49 (11) :4202-4231

[4] Active corrosion protection and corrosion sensing in chromate-free organic coatings [J].

Buchheit, RG ;

Guan, H ;

Mahajanam, S ;

Wong, F .

PROGRESS IN ORGANIC COATINGS, 2003, 47 (3-4) :174-182

[5]

Hammouda N., 2011, Adv. Chem. Eng. Sci, V01, P51, DOI [10.4236/aces.2011.12009, DOI 10.4236/ACES.2011.12009]

[6] A hydrotalcite-like pigment containing an organic anion corrosion inhibitor [J].

Kendig, M ;

Hon, M .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2005, 8 (03) :B10-B11

[7] Zinc-rich primers - Test performance and electrochemical properties [J].

Knudsen, OO ;

Steinsmo, U ;

Bjordal, M .

PROGRESS IN ORGANIC COATINGS, 2005, 54 (03) :224-229

[8] Characterization of Mg,Al-hydrotalcite conversion film on Mg alloy and Cl- and CO32- anion-exchangeability of the film in a corrosive environment [J].

Lin, J. K. ;

Hsia, C. L. ;

Uan, J. Y. .

SCRIPTA MATERIALIA, 2007, 56 (11) :927-930

[9] Evaluation of self-healing ability in protective coatings modified with combinations of layered double hydroxides and cerium molibdate nanocontainers filled with corrosion inhibitors [J].

Montemor, M. F. ;

Snihirova, D. V. ;

Taryba, M. G. ;

Lamaka, S. V. ;

Kartsonakis, I. A. ;

Balaskas, A. C. ;

Kordas, G. ;

Tedim, J. ;

Kuznetsova, A. ;

Zheludkevich, M. L. ;

Ferreira, M. G. S. .

ELECTROCHIMICA ACTA, 2012, 60 :31-40

[10] Synthesis, characterization and applications of layered double hydroxides containing organic guests [J].

Newman, SP ;

Jones, W .

NEW JOURNAL OF CHEMISTRY, 1998, 22 (02) :105-115

← 1 2 3 →