导电聚合物腐蚀防护涂层的制备与改性技术研究进展

The marine engineering equipment manufacturing industry in China is in the critical stage of survival and development. The anti-corrosion coating is one of the most effective ways to reduce the corrosion rate of the substrate and improve its service life. Conductive polymers (CPs) coatings have been widely used in the field of metal corrosion protection due to its advantages of environmental protection, simple preparation and unique conductive and anticorrosive mechanism. This work summarizes the anticorrosion mechanism of CPs coatings, introduces the current situation of preparing conductive polymer coating by two methods of chemical oxidation and electrochemical synthesis, and focuses on the improvement effect of doping modification, copolymerization modification and layered design of CPs coatings on the corrosion resistance of the coating. Finally, the possible research hotspots and development trends of CPs coatings in the field of corrosion protection are proposed.