Protective behaviors of 2-mercaptobenzothiazole intercalated Zn-Al-layered double hydroxide coating

被引：53

作者：

Dong, Yuhua ^{[1
]}

Wang, Feng ^{[1
]}

Zhou, Qiong ^{[1
]}

机构：

[1] China Univ Petr, Dept Mat Sci & Engn, Coll Sci, Beijing, Peoples R China

来源：

JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH | 2014年 / 11卷 / 05期

关键词：

Nanocontainer; LDH; MBT; Ion-exchange; Self-healing; ACTIVE CORROSION PROTECTION; ANTICORROSION COATINGS; COATED METALS; NANOCONTAINERS; INHIBITOR; EIS; AA2024-T3; SILVER; FILM;

D O I：

10.1007/s11998-014-9568-9

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A nanocontainer with 2-mercaptobenzothiazole (MBT)-intercalated Zn-Al-layered double hydroxides (LDHs) was synthesized through co-precipitation. The structures of the LDH and the nanocontainer were characterized by powder X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and energy-dispersive X-ray analysis. The nanocontainer was added into 3.5 wt% NaCl solutions with different pH values to study its effect on the protection of Q345 steel. The corrosion rate of Q345 steel in 3.5 wt% NaCl solution with a pH value of 3 was lower than those in neutral and alkali solutions. Moreover, the addition of nanocontainers into the epoxy resin coating improved the performance of the coating and facilitated self-healing by releasing MBT inhibitors into the scratched area.

引用

页码：793 / 803

页数：11

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