Effects of Immersion Time on the Electrochemical Impedance Spectroscopy Model of Epoxy Coating Modified by Nano-Sized Titanium

Abstract

In this paper, the effects of immersion time on the electrochemical impedance spectroscopy model of nano-sized titanium modified epoxy coating immersed in 3.5(wt.%) sodilum chloride solution has been studied using electrochemical impedance spectroscopy(EIS). Through the analysis of the spectra of the coating at different immersion times, the results showed that the spectrum was different at the different immersion times. Therefore, the equivalent electrical circuit was varied with the increasing immersion time and there were the characteristics of the powder in the equivalent electrical circuits (electrochemical impedance spectroscopy model). By the study on the evlolution of impedance model in the given system, it was found that the nano-sized powder played an important part during the electrolyte diffusing to the surface of the substrate and the electrolyte reacting with the substrate

Effect of nanotitanium‐based hybrid materials and methyl methacrylate/nitrile rubber/graphene oxide on the microstructure and anticorrosion properties of waterborne epoxy resin coatings

“…Nanotitanium can enhance mechanical, adhesion and anticorrosion properties of the coattings. [41][42][43][44] Furthermore, GO sheets are an appealing filler to modify epoxy resin for their excellent properties. GO sheets can fill the holes to form a physical barrier layer and can transfer electrons from the coating to the substrate, resulting in cathodic protection.…”

“…Nanotitanium has good compatibility with organic coatings. Nanotitanium can enhance mechanical, adhesion and anticorrosion properties of the coattings 41–44 . Furthermore, GO sheets are an appealing filler to modify epoxy resin for their excellent properties.…”