文献类型：期刊文献

英文题名：Hydrophobic benzoxazine-cured epoxy coatings for corrosion protection

作者：Zhou, Changlu[1];Lu, Xin[1];Xin, Zhong[1];Liu, Juan[1];Zhang, Yanfeng[2]

机构：[1]E China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]Lanpec Technol Co Ltd, Lanzhou 730070, Gansu, Peoples R China

年份：2013

卷号：76

期号：9

起止页码：1178

外文期刊名：PROGRESS IN ORGANIC COATINGS

收录：;EI(收录号：20132416424168);WOS:【SCI-EXPANDED(收录号:WOS:000321175400006)】；

基金：This research was financially supported by the Nanotech Foundation of Science and Technology Commission of Shanghai Municipality (No. 0652nm001), the Fundamental Research Funds for the Central Universities, the National Natural Science Funds of China (Grant No. u1162110), Program of Shanghai Subject Chief Scientist (10XD1401500) and Lanpec Technologies Co., Ltd. The authors would like to thank to Dr. Ruben Mercade'-Prieto (Chemical Engineering, University of Birmingham) for his valuable helps with improving the language throughout the paper and polishing the English text.

语种：英文

外文关键词：Corrosion protection; Benzoxazine; Epoxy; Curing agent; Hydrophobicity

摘要：A hydrophobic benzoxazine-cured epoxy coating (EPB) was prepared by a dip coating and thermal curing method using benzoxazine monomer (B-TMOS) as curing agent. Fourier transform infrared (FTIR) analyses confirmed the presence of thermal curing reactions and hydrogen-bonding interactions in the epoxy/polybenzoxazine system. The hydrophobicity of epoxy coatings induced by the incorporation of B-TMOS was enhanced significantly, and the water contact angles of resultant EPB coatings were higher than 98 degrees. The corrosion protection ability of epoxy coatings was investigated by open-circuit potentials, potentiodynamic polarization curves and electrochemical impedance spectroscopy (EIS) methods. The results showed that the charge transfer resistance (R-ct) of EPB coatings was increased by about three orders of magnitude compared with bare mild steel, and the protection efficiency values of all EPB samples were more than 98%. This increased corrosion protection property could be attributed to the high hydrophobic performance of EPB coatings. (c) 2013 Elsevier B.V. All rights reserved.