Preparation and Corrosion Performance of PPy/Silane Film on AZ31 Magnesium Alloy via One-Step Cyclic Voltammetry

被引：5
作者：
Peng, Chuang [1 ]
Cao, Nana [1 ]
Qi, Ziheng [2 ,3 ]
Yan, Yongde [1 ,2 ,3 ]
Wu, Ruizhi [1 ]
Wang, Guixiang [1 ,2 ,3 ]
机构：
[1] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Harbin 150001, Peoples R China
[2] Harbin Engn Univ, Yantai Res Inst, Lab Nucl Chem Engn & Electrochem, Yantai 264006, Peoples R China
[3] Harbin Engn Univ, Grad Sch, Yantai 264006, Peoples R China
来源：
POLYMERS | 2021年 / 13卷 / 18期
基金：
中国国家自然科学基金;
关键词：
PPy; silane film; Mg alloy; cyclic voltammetry; corrosion resistance; ELECTROCHEMICAL POLYMERIZATION; MG ALLOY; POLYPYRROLE; FABRICATION; PYRROLE; PROTECTION; RESISTANCE; SILANE;
D O I：
10.3390/polym13183148
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
PPy/silane composite film on a magnesium alloy surface was prepared by one-step cycle voltammetry. The mixed solution of methanol and water was used as the hydrolysis solvent of a gamma-(2,3-glycidoxypropyl) trimethoxysilane coupling agent (KH-560). The surface morphology of the PPy/silane film, the electro-polymerization progress of KH-560 and PPy, the influence of the silane coupling agent and the corrosion behavior of the coated AZ31 Mg alloy were all investigated. The results indicated that the PPy/silane film on AZ31 Mg alloy via one-step cyclic voltammetry could provide better corrosion protection for an Mg alloy when the volume fraction of KH-560 in the hydrolysis solution was 15% and the time span of hydrolysis was 24 h with the 5.935 x 10(-10) A cm(-2) corrosion current density.
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页数：12
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