A Novel Waterborne Epoxy Coating with Anticorrosion Properties on Rusty Steel

被引：20

作者：

Ding, Jiheng ^{[2
,3
]}

Zhao, Hongran ^{[1
,2
]}

Gu, Lin ^{[2
]}

Su, Shengpei ^{[1
]}

Yu, Haibin ^{[2
]}

机构：

[1] Hunan Normal Univ, Coll Chem & Chem Engn, Changsha 410081, Peoples R China

[2] Chinese Acad Sci, Key Lab Marine Mat & Related Technol, Key Lab Marine Mat & Protect Technol Zhejiang Pro, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China

[3] Nanjing Univ Sci & Technol, Sch Chem Engn, Nanjing 210094, Peoples R China

来源：

INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2016年 / 11卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Waterborne coatings; epoxy phosphate; anticorrosion; rusty painting; FACILE PREPARATION; GRAPHENE; RESIN; NANOPARTICLES; OLIGOANILINE; ALLOYS;

D O I：

10.20964/2016.08.08

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

This paper reports the synthesis of waterborne epoxy phosphate emulsion (WEP) through the reaction between epoxy resin E44 and phosphoric acid and ammonia neutralization. Synthesized WEP was characterized by FTIR for the confirmation of reaction between epoxy groups and phosphoric acid and SEM for morphology. WEP acted as a modifier in two-component epoxy anticorrosion coating on rusty steel substrate. The anticorrosion properties of the coating on rusty steel were investigated by electrochemical impedance spectroscopy (EIS) and Tafel polarization curve. Tafel polarization curve revealed that waterborne epoxy coating containing WEP had better protection ability which is clearly reflected by the protection efficiency (96.6%). EIS study also showed the higher impedance value for WEP containing coating as compared to pure waterborne epoxy coating.

引用

页码：7066 / 7075

页数：10

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