文献类型：期刊文献

英文题名：Corrosion protection of hydrophobic bisphenol A-based polybenzoxazine coatings on mild steel

作者：Lu, Xin[1];Liu, Yan[1];Zhou, Changlu[1];Zhang, Wenfei[1];Xin, Zhong[1]

机构：[1]E China Univ Sci & Technol, Shanghai Key Lab Multiphase Mat Chem Engn, State Key Lab Chem Engn, Sch Chem Engn, Shanghai 200237, Peoples R China

年份：2016

卷号：6

期号：7

起止页码：5805

外文期刊名：RSC ADVANCES

收录：;EI(收录号：20160501872174);WOS:【SCI-EXPANDED(收录号:WOS:000368941700078)】；

基金：This work was financially supported by the National Natural Science Foundation of China (21506062), the Fundamental Research Funds for the Central Universities (22A201514015), China Postdoctoral Science Foundation (2015M571509), and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering.

语种：英文

外文关键词：Curing - Hydrophobicity - Monomers - Phenols - Steel corrosion - Low carbon steel - Corrosion resistant coatings - Fourier transform infrared spectroscopy - Differential scanning calorimetry - Electrochemical corrosion

摘要：Hydrophobic bisphenol A-based polybenzoxazine (PBA-a) coatings were prepared on mild steel (MS) through a simple dip coating and thermal curing method. The thermal curing process of PBA-a coating was studied by Fourier transform infrared spectrometer (FTIR) and differential scanning calorimeter (DSC). The film-forming property and the wettability of PBA-a coatings were characterized by the microscopy and the contact angle measurement, respectively. The effects of benzoxazine monomer concentration and curing temperature on corrosion resistance of PBA-a coatings on MS were investigated by the electrochemical measurements. The results revealed that the corrosion resistance properties of PBA-a coatings improved with the increasing concentration of BA-a monomer. For the samples with the BA-a concentration of 500 g L-1, the protection efficiency values of PBA-a coatings were more than 99.0% when the curing temperature increased from 150 degrees C to 210 degrees C.