The enhancement of benzotriazole on epoxy functionalized silica sol-gel coating for copper protection

被引:57
|
作者
Peng, Shusen [1 ]
Zhao, Wenjie [1 ]
Li, He [1 ]
Zeng, Zhixiang [1 ]
Xue, Qunji [1 ]
Wu, Xuedong [1 ]
机构
[1] Chinese Acad Sci, Ningbo Key Lab Marine Protect Mat, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China
基金
中国博士后科学基金;
关键词
Benzotriazole; Copper; Anticorrosion; Sol-gel coating; Electrochemical measurement; Salt spray test; CORROSION PROTECTION; HYBRID COATINGS; GALVANIZED STEEL; MAGNESIUM ALLOY; STAINLESS-STEEL; ALUMINUM-ALLOYS; PERFORMANCE; INHIBITORS; METALS; FILM;
D O I
10.1016/j.apsusc.2013.03.083
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 influence of the amount of benzotriazole (BTA) on the wetting and anticorrosion ability of the epoxy functionalized silica sol-gel (ESol) coating was studied by various complementary methods. IR results demonstrate that BTA reacted with ESol through a 1:1 addition reaction of N-H to epoxy group. The water contact angle of the ESol coating increases with an increase in the amount of BTA. SEM and adhesion tests reveal that BTA could improve the adhesion of ESol to copper surface. Moreover, the best protection was achieved when the amount of BTA equals to the molar number of epoxy group in the ESol coating according to the results of electrochemical measurements and salt spray test. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:284 / 290
页数:7
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