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

被引：55
|
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
收藏
页码：384 / 389
页数：6
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