Smart epoxy coating containing Ce-MCM-22 zeolites for corrosion protection of Mg-Li alloy

被引：56

作者：

Wang, Yanli ^{[1
,2
]}

Zhu, Yanhao ^{[1
]}

Li, Chao ^{[1
]}

Song, Dalei ^{[1
]}

Zhang, Tao ^{[1
]}

Zheng, Xinran ^{[1
]}

Yan, Yongde ^{[1
]}

Zhang, Meng ^{[1
]}

Wang, Jun ^{[1
]}

Shchukin, Dmitry G. ^{[2
]}

机构：

[1] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Key Lab Supertight Mat & Surface Technol, Minist Educ, Harbin 150001, Peoples R China

[2] Univ Liverpool, Stephenson Inst Renewable Energy, Dept Chem, Peach St, Liverpool L69 7ZF, Merseyside, England

来源：

APPLIED SURFACE SCIENCE | 2016年 / 369卷

基金：

中国国家自然科学基金;

关键词：

MCM-22; zeolite; Cerium; Self-healing; Corrosion; Mg-Li alloy; DOPED SILANE SOLUTIONS; MCM-22; ZEOLITE; MG-8LI ALLOY; STEEL; RESISTANCE; PERFORMANCE; PRETREATMENT; POLYANILINE; INHIBITION; OXIDATION;

D O I：

10.1016/j.apsusc.2016.02.102

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The epoxy coatings containing MCM-22 and Ce-MCM-22 zeolites were prepared by coating method on the Mg-Li alloy surface. The influence of MCM-22 and Ce-MCM-22 zeolites on corrosion protection of the epoxy coating was studied. The epoxy coating containing Ce-MCM-22 zeolites showed high corrosion resistance. Artificial defects in the epoxy coating containing Ce-MCM-22 zeolites on the Mg-Li surface were produced by the needle punching. The results show that the epoxy coating containing Ce-MCM-22 zeolites exhibits self-healing corrosion inhibition capabilities. It is ascribed to the fact that the Ce3+ ions are released from MCM-22 zeolites based on ion exchange of zeolite in the corrosion process of the Mg-Li alloy substrate. MCM-22 zeolites as reservoirs provided a prolonged release of cerium ions. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：384 / 389

页数：6

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