Synthesis, characterization and corrosion protection study of polypyrrole/phosphotungstate coating on low alloy steel in seawater |
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| Authors: | Jian Hou Guang Zhu Jiaqing Zheng |
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| Institution: | 1. Science and Technology on Marine Corrosion and Protection Laboratory, Luoyang Ship Material Research Institute, Qingdao, 266071, China
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| Abstract: | Polypyrrole was prepared by chemical oxidation with ammonium persulfate as the oxidant, phosphotungstic acid as the dopant, and its molecular structure was characterized by FTIR spectrum, X-ray diffraction and EDX. A composite coating by using polypyrrole as functional component was prepared on the low alloy steel surface, and its anticorrosion properties were investigated by the open circuit potential and EIS. The results indicated that the coating contained dopant displayed an excellent anticorrosion property for the low alloy steel. |
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