改性含N小分子用于金属表面锈层处理对环氧涂层防腐性能的研究

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Abstract Nitrogenous heterocyclic organic molecule is an important corrosion inhibitor with good complexation performance, which can form coordination compounds with metal ions or on the surface of solid, so as to control its chemical properties and reduce oxidation capacity. In this paper, KH560 was used to modify 2-aminopyridine, 2-aminopyrimidine and melamine. The product was used to treat rust layer. The success of the synthesis experiment was confirmed by Fourier infrared absorption spectroscopy (FTIR). The surface of rust layer before and after treatment was observed by scanning electron microscopy, copper sulfate drop test, polarization curve test and impedance test. The results show that the corrosion resistance of epoxy coatings treated with A1KH560, A2KH560 and A3KH560 is greatly improved, and the adhesion, flexibility and impact strength of the coatings are obviously improved. The coating treated with A1KH560 has the best corrosion resistance.

Key words： anticorrosion rust coating electrochemistry surface treatment

Published: 05 July 2019

CLC number:

TQ047.6

About author:: Fangchang Shi, graduate student of Jiangsu University of Science and Technology. From September 2012 to January 2016, he obtained a bachelor’s degree in metal materials engineering (corrosion and protection) from Jiangsu University of Science and Technology. After graduation, he was sent to graduate school. He is mainly engaged in research on corrosion and protection direction and direction of new energy materials.Yanmin Gao, professor of Jiangsu University of Scie-nce and Technology, was transferred to the Material Science Department of Jiangsu University of Science and Technology in 2004.He is currently the editorial board member of the Natural Science Journal of Jiangsu University of Science and Technology, the deputy director of the development planning department, and the director of the Institute of Corrosion and Protection, Chinese Academy of Sciences. His team’s main research inte-restsincluding:coatings,adhesive,ink,composite materials,metal corrosionand protection and new energy batteries.Presided over or participated in a number of scientific research projects and talent programs.Including the corrosion inhibitor mechanism of Natural Science Foundation of Jiangsu Province in coatings; mechanism of self-mineralization of iron ions in carbon dioxide corrosion products for substrate protection;the relationship between the effect of small molecule biomineralization on the surface of iron and corrosion resis-tance.China shipbuilding heavy industry’s LNG carrier ultra-low temperature material insulation material and construction technology, as well as the design and industrialization research of rust-coating directly on rust-coating of Jiangsu province’s industry-university-research project. With invention patents and more than 300 journal papers, has cultivated more than 100 excellent master.

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	SHI Fangchang
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Cite this article:

SHI Fangchang,WANG Yu,GAO Yanmin. Study on Anti-corrosion Properties of Epoxy Coatings by Modified N-Containing Small Molecule for Metal Surface Rust Layer Treatment[J]. Materials Reports, 2019, 33(z1): 523-526.

URL:

http://www.mater-rep.com/EN/ OR http://www.mater-rep.com/EN/Y2019/V33/Iz1/523