Facile fabrication of epoxy/polybenzoxazine based superhydrophobic coating with enhanced corrosion resistance and high thermal stability

被引：38
作者：
Lou, Chang [1 ]
Zhang, Rui [1 ]
Lu, Xin [1 ]
Zhou, Changlu [1 ]
Xin, Zhong [1 ]
机构：
[1] East China Univ Sci & Technol, Sch Chem Engn, Dept Prod Engn, Shanghai Key Lab Multiphase Mat Chem Engn, Shanghai 200237, Peoples R China
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2019年 / 562卷
基金：
中国国家自然科学基金;
关键词：
Polybenzoxazine; Superhydrophobic; Corrosion; Durability; Mild steel; MECHANICAL CHARACTERIZATION; EPOXY COATINGS; COATED METALS; SURFACE; BENZOXAZINE; MEMBRANE; ALUMINUM; EIS; SUPEROLEOPHILICITY; ANTICORROSION;
D O I：
10.1016/j.colsurfa.2018.10.066
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：
A durable epoxy/polybenzoxazine based superhydrophobic coating with enhanced corrosion resistance and high thermal stability was prepared on mild steel by spray coating and thermal curing method. The curing reaction between epoxy and benzoxazine were investigated by Fourier transform infrared spectroscopy (FTIR). The epoxy/polybenzoxazine based superhydrophobic coating exhibited high thermal stability, desirable mechanical durability and good self-cleaning property with a static water contact angle of 165.2 +/- 2.2 degrees. The results of electrochemical impedance spectroscopy (EIS) showed that the as-prepared superhydrophobic coating performs high corrosion resistance after immersion in 3.5 wt% NaCl aqueous solution for 30 days. It is believed that such a superhydrophobic coating has potential application in practical conditions that need waterproof, dustproof, heatproof and corrosion resistance.
引用
收藏
页码：8 / 15
页数：8
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