文献类型：期刊文献

英文题名：Synergistic effect of 2D/0D mixed graphitic carbon nitride/Fe2O3 on the excellent corrosion behavior of epoxy-based waterborne coatings

作者：Sheng, Caihong[1];Cheng, Lihong[1];Chen, Xu[1];Zhang, Yuhui[1];Guo, Weihong[1]

机构：[1]East China Univ Sci & Technol, Key Lab Preparat & Applicat Ultrafine Mat, Shanghai Key Lab Adv Polymer Mat, Minist Educ,Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2021

卷号：299

期号：5

起止页码：883

外文期刊名：COLLOID AND POLYMER SCIENCE

收录：;EI(收录号：20210509850519);WOS:【SCI-EXPANDED(收录号:WOS:000609374800001)】；

基金：This study received funding from 'Xinxing Casting Pipe Co., Ltd., Hebei Province.'

语种：英文

外文关键词：Polydopamine; g-C3N4; alpha-Fe2O3; Coatings; Corrosion

摘要：Polydopamine (PDA) functionalized graphitic carbon nitride nanosheets (PDCN) and alpha-Fe2O3 nanoparticles (PDFe) were synthesized and characterized by FT-IR, XRD, TGA, XPS, and TEM. The complementary fillers of two-dimensional PDCN and zero-dimensional PDFe incorporated into waterborne epoxy (WEP) greatly improve the corrosion protect properties of composite coating, which was demonstrated through electrochemical impedance spectroscopy (EIS) and macroscopic surface morphology. Results showed that PDA modified g-C3N4 and alpha-Fe2O3 composite fillers (PDCN/Fe) have much superior synergistic effect on the improved barrier function of coatings than pure mixture of g-C3N4 and alpha-Fe2O3 (CN/Fe). This research indicates that the synergistic effect of nanofillers of different dimensions can be greatly stimulated by the good dispersibility in matrix, which has significant potential in improving corrosion protection properties of composite coatings.