Enhanced active corrosion protection coatings for aluminum alloys with two corrosion inhibitors co-incorporated in nanocontainers

被引：35

作者：

Ma, Lingwei ^{[1
,2
,3
]}

Wang, Jinke ^{[1
,2
]}

Wang, Yajie ^{[1
,2
]}

Guo, Xin ^{[1
,2
]}

Wu, Shanghao ^{[1
,2
]}

Fu, Dongmei ^{[2
,3
,4
]}

Zhang, Dawei ^{[1
,2
,3
]}

机构：

[1] Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Beijing Adv Innovat Ctr Mat Genome Engn, Beijing 100083, Peoples R China

[2] Univ Sci & Technol Beijing, Natl Mat Corros & Protect Data Ctr, Beijing 100083, Peoples R China

[3] Univ Sci & Technol Beijing, Shunde Grad Sch, MOE, BRI Southeast Asia Network Corros & Protect, Foshan 528399, Peoples R China

[4] Univ Sci & Technol Beijing, Sch Automat & Elect Engn, Beijing 100083, Peoples R China

来源：

CORROSION SCIENCE | 2022年 / 208卷

基金：

中国国家自然科学基金;

关键词：

Active corrosion protection; Coatings; Corrosion inhibition; Self -healing coatings; SELF-HEALING COATINGS; CARBON-STEEL; SILICA NANOCONTAINERS; MESOPOROUS SILICA; DELIVERY-SYSTEM; BENZOTRIAZOLE; IMPROVEMENT; RESISTANCE; AA2024-T3; PROPERTY;

D O I：

10.1016/j.corsci.2022.110663

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An active corrosion protection coating was developed based on mesoporous SiO2 nanoparticles simultaneously incorporated with benzotriazole and 2-mercaptobenzothiazole inhibitors (BTA+MBT@mSiO(2) NPs). The enhanced inhibition effect between BTA and MBT mixtures against the corrosion of aluminum alloy (AA2024-T3) was assessed through a visual-identification based high-throughput screening method and EIS measurement. DFT and MD simulation revealed that the hydrogen bond interaction between BTA and MBT promoted their co -adsorption on the alloy surface. An epoxy coating containing 2 wt% BTA+MBT@mSiO(2) NPs exhibited enhanced active corrosion protection of AA2024-T3 in 3.5 wt% NaCl solution. XPS results confirmed the adsorption of binary inhibitors to suppress corrosion.

引用

页数：17

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