Corrosion Inhibition Effect of Perimidine Derivatives Corrosion Inhibitor on Rebar in Simulated Concrete Pore Solutions

被引：0

作者：

Ma Q. ^{[1
,2
]}

Cai J. ^{[1
,2
]}

Mu S. ^{[1
,2
]}

Zhou X. ^{[1
,2
]}

Liu J. ^{[1
,2
]}

Hong J. ^{[1
,2
]}

Liu J. ^{[1
,2
]}

机构：

[1] State Key Laboratory of High Performance Civil Engineering Materials, Jiangsu Research Institute of Building Science Co., Ltd., Nanjing

[2] Jiangsu Sobute New Materials Co., Ltd., Nanjing

[3] School of Materials Science and Engineering, Southeast University, Nanjing

来源：

Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society | 2021年 / 49卷 / 05期

关键词：

Concrete; Durability; Inhibitors; Perimidine derivatives; Pore solution; Reinforced steel; Simulated;

D O I：

10.14062/j.issn.0454-5648.20200578

中图分类号：

学科分类号：

摘要：

1H-perimidine (PED) and 2-hydroxy-1H-perimidine (HPED) were prepared as corrosion inhibitors for HRB400 reinforced steel in simulated concrete pore solution. The corrosion inhibition performance and adsorption mechanism were investigated via dry and wet cycle experiments, scanning electron microscopy, electrochemical impedance spectroscopy and related theoretical calculations. The results show that the inhibition efficiencies of these compounds are more than 80% for HRB400 reinforced steel in SCP at a concentration of less than 0.12 mmol/L. Moreover, HPED functions as a more effective inhibitor rather than PED due to the presence of 2-position hydroxyl-group. In addition, the inhibitor molecules spontaneously adsorb onto reinforced steel surfaces to form a protective film, and the adsorption process follows the Langmuir isothermal model. © 2021, Editorial Department of Journal of the Chinese Ceramic Society. All right reserved.

引用

页码：939 / 947

页数：8

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