The mechanism of inhibition by zinc phosphate in an epoxy coating

被引：181
作者：
Hao, Yongsheng [1 ]
Liu, Fuchun [1 ]
Han, En-Hou [1 ]
Anjum, Saima [2 ]
Xu, Guobao [2 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China
[2] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Peoples R China
来源：
CORROSION SCIENCE | 2013年 / 69卷
基金：
中国博士后科学基金;
关键词：
Mild steel; EIS; Polarization; XPS; BORNE DISPERSION COATINGS; CORROSION PROTECTION; ANTICORROSION PROPERTIES; CATHODIC DISBONDMENT; STAINLESS-STEEL; ZN-PHOSPHATE; POLYANILINE; PIGMENTS; PERFORMANCE; BEHAVIOR;
D O I：
10.1016/j.corsci.2012.11.025
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Epoxy coatings containing different volume fractions of zinc phosphate have been successfully prepared and their inhibitive properties have been studied by electrochemical impedance spectroscopy (EIS) and immersion tests. The results show that zinc phosphate can improve the protection ability of epoxy coatings and its best volume fraction is 30%. Scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) results indicate that the presence of zinc phosphate can form an inhibiting film which is composed of the phosphating film of FePO4, Fe2O3, and FeO, as well as the shielding film of zinc phosphate on the steel surface. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：77 / 86
页数：10
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