Explorations of the adhesion and anti-corrosion properties of the epoxy coating on the carbon steel surface modified by Eu2O3 nanostructured film

被引：18
作者：
Mofidabadi, Amir Hossein Jafari [1 ]
Bahlakeh, Ghasem [1 ]
Ramezanzadeh, Bahram [2 ]
机构：
[1] Golestan Univ, Fac Engn, Dept Chem Engn, Aliabad Katoul, Iran
[2] Inst Color Sci & Technol, Dept Surface Coatings & Corros, POB 16765-654, Tehran, Iran
来源：
JOURNAL OF MOLECULAR LIQUIDS | 2020年 / 314卷
关键词：
Europium oxide; Epoxy coating; Corrosion; EIS; Adhesion; Adsorption simulation; CORROSION PROTECTION PROPERTIES; MILD-STEEL; MOLECULAR-DYNAMICS; FORCE-FIELD; CONVERSION; MAGNESIUM; PRETREATMENT; BEHAVIOR; INHIBITION; RESISTANCE;
D O I：
10.1016/j.molliq.2020.113658
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 the present study, the epoxy coating adhesion and adsorption on the carbon steel surface treated by a high free energy nano-porous film based on europium (Eu) oxide were estimated using different analyses. Furthermore, the Eu2O3 film impact on the steel@Eu-oxide/epoxy anti-corrosion properties, performance, and cathodic disbondment resistance was investigated. By atomic force microscopy (AFM) analysis, the steel@Eu-oxide roughness, and through the FE-SEM method, the deposited film homogeneity/uniformity degrees were examined. The uniform coverage of the steel surface by a nanostructured Eu-oxide film led to the free energy (gamma(s)) improvement up to 30%. The EIS outcomes indicated a significant increase (about 57%) in the scratched coating corrosion resistance against saline attack in the case of the Eu-treated sample. The cathodic delamination test results displayed about 58% improvement of the epoxy resistance against cathodic disbondment. The simulation outcomes strongly affirmed the strengthened coating dry/wet adsorption on the europium oxide adsorbents compared with iron oxides. (C) 2020 Elsevier B.V. All rights reserved.
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页数：13
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