Sodium zinc phosphate as a corrosion inhibitive pigment

被引：62
作者：
Alibakhshi, Eiman [1 ,2 ]
Ghasemi, Ebrahim [3 ]
Mandavian, Mohammad [4 ]
机构：
[1] Inst Color Sci & Technol, Tehran, Iran
[2] Payame Noor Univ, Dept Chem Engn, Tehran, Iran
[3] Inst Color Sci & Technol, Inorgan Pigment & Glazes Dept, Tehran, Iran
[4] Inst Color Sci & Technol, Dept Surface Coatings & Corros, Tehran, Iran
来源：
PROGRESS IN ORGANIC COATINGS | 2014年 / 77卷 / 07期
关键词：
Neutral inhibition; SEM; EIS; IR spectroscopy; Mild steel; BORNE DISPERSION COATINGS; ANTICORROSION PIGMENTS; ZN-PHOSPHATE; MILD-STEEL; RUST; IRON; PERFORMANCE; MECHANISMS; PROTECTION; OXIDATION;
D O I：
10.1016/j.porgcoat.2014.03.027
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A sodium zinc phosphate pigment synthesized using a co-precipitation method and characterized by X-ray diffraction was investigated for its corrosion inhibition activity in comparison with the commercial zinc phosphate using EIS in a 3.5% NaCl solution. A mild steel surface analysis after exposure to the test solutions was conducted using scanning electron microscope-energy dispersive X-ray and infrared spectroscopies. The results indicate that the corrosion inhibitive performance of the synthesized pigment is higher than that of the commercial zinc phosphate. This can be the result of the synthesized pigment's relatively high solubility, which affects the precipitation of a phosphate layer onto the mild steel surface and the modification of the crystalline structure of the corrosion products in the presence of the inhibitive pigment. The salt spray and wet pull-off tensile strength results revealed an improved corrosion protection of the coatings formulated with SZP. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：1155 / 1162
页数：8
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