Steel surface pre-treated by an advance and eco-friendly cerium oxide nanofilm modified by graphene oxide nanosheets; electrochemical and adhesion measurements

被引：43
作者：
Parhizkar, Nafise [1 ]
Shahrabi, Taghi [1 ]
Ramezanzadeh, Bahram [2 ]
机构：
[1] Tarbiat Modares Univ, Dept Mat Engn, Fac Engn, POB 14115-143, Tehran, Iran
[2] ICST, Dept Surface Coatings & Corros, PO 16765-654, Tehran, Iran
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2018年 / 747卷
关键词：
Graphene oxide; Cerium coating; Corrosion protection; AFM; FE-SEM; Cathodic protection; PHOSPHATE-PERMANGANATE SOLUTION; INTERFACIAL BONDING STRENGTH; CONVERSION COATINGS; CORROSION PROTECTION; MILD-STEEL; MECHANICAL-PROPERTIES; CATHODIC DISBONDMENT; CARBON-STEEL; GALVANIZED STEEL; PERFORMANCE;
D O I：
10.1016/j.jallcom.2018.03.022
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 research the silane-functionalized graphene oxide (GO) nanosheets were utilized for modification of an eco-friendly cerium conversion coating and its effect on the cathodic disbonding, corrosion protection and adhesion properties of the epoxy coating was investigated. For this purpose, the cerium coating was modified by GO nanosheets functionalized with 3-(Triethoxysilyl) propyl isocyanate (TEPI, IGO nano-fillers). The Electrochemical Impedance Spectroscopy (EIS) showed that the addition of IGO nano-fillers in the cerium coating resulted in improved anti-corrosion properties of cerium coatings. The adhesion and anti-corrosion performance of the steel-cerium/epoxy system were also investigated. Results showed that inclusion of IGO nano-filler into the cerium matrix significantly improved the corrosion resistance, cathodic disbonding and adhesion properties of the top epoxy coating. (C) 2018 Elsevier B.V. All rights reserved.
引用
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页码：109 / 123
页数：15
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