Inhibition Effect of Polyvinylpyrrolidone on Corrosion of Reinforcing Steel in Simulated Concrete Pore Solutions

被引：1

作者：

Dong Shigang ^{[1
]}

Gao Yingbo ^{[2
]}

Guan Zichao ^{[2
]}

Wang Haipeng ^{[2
]}

Wang Xia ^{[2
]}

Du Ronggui ^{[2
]}

Song Guangling ^{[3
]}

机构：

[1] Xiamen Univ, Coll Energy, Xiamen 361102, Peoples R China

[2] Xiamen Univ, Coll Chem & Chem Engn, Dept Chem, Xiamen 361005, Peoples R China

[3] Xiamen Univ, Coll Mat, Ctr Marine Mat Corros & Protect, Xiamen 361005, Peoples R China

来源：

CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE | 2018年 / 39卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Surfactant; Corrosion inhibitor; Polyvinylpyrrolidone; Reinforcing steel; Simulated concrete pore solution; CHLORIDE-INDUCED CORROSION; CARBON-STEEL; POLYVINYL PYRROLIDONE; ELECTROCHEMICAL IMPEDANCE; ALKALINE-SOLUTIONS; PITTING CORROSION; DIFFERENT PH; MILD-STEEL; LOW-ALLOY; BEHAVIOR;

D O I：

10.7503/cjcu20170648

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Surfactant polyvinylpyrrolidone ( PVP) was used as a potential corrosion inhibitor for reinforcing steel. The corrosion inhibition effect and mechanism of PVP for the reinforcing steel in the simulated polluted concrete pore solution at pH = 11.0 with 0.5 mol/L NaCl were studied by electrochemical impedance spectroscopy and polarization curve measurements , scanning electron microscopy , X-ray photoelectron spectroscopy and Raman spectroscopy. The results indicated that the PVP concentration had an important effect on the corrosion behavior of the steel in the solution. The PVP with the optimum concentration could effectively inhibit the corrosion of the reinforcing steel. The inhibition efficiency of PVP reached 89.1% when its concentration was 25 mg/L. PVP formed an adsorption film on the surface of the reinforcing steel and protected the steel from corrosion.

引用

页码：1260 / 1266

页数：7

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