Effect of Nano Clay on Corrosion Protection of Zinc-rich Epoxy Coatings on Steel 37
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2016年第11期
论文作者：Farhad Tohidi Shirehjini Iman Danaee Hadi Eskandari Davood Zarei
文章页码：1152 - 1160
摘 要：Epoxy zinc rich coatings containing clay nanoparticles were prepared and the effect of clay content on the cathodic protection performance of the coatings was evaluated by electrochemical impedance spectroscopy(EIS) and immersion test. Open circuit potential(OCP) measurements and immersion tests were also carried out to better understand the behavior of zinc rich coating. EIS and OCP measurements showed that addition of 1 wt% clay improved the cathodic protection duration and sacrificial properties of the epoxy zinc rich coating. Transmission electron microscopy(TEM) photographs confirmed that clay nanoparticles were successfully dispersed in the coating matrix loaded with 1 wt% clay. Immersion test results indicated that addition of 1 wt% clay nanoparticles in zinc rich epoxy coatings increased the cathodic protection ability of coatings.
Farhad Tohidi Shirehjini1，Iman Danaee1，Hadi Eskandari1，Davood Zarei2
1. Abadan Faculty of Petroleum Engineering, Petroleum University of Technology2. Technical Faculty, South Tehran Branch, Islamic Azad University
摘 要：Epoxy zinc rich coatings containing clay nanoparticles were prepared and the effect of clay content on the cathodic protection performance of the coatings was evaluated by electrochemical impedance spectroscopy(EIS) and immersion test. Open circuit potential(OCP) measurements and immersion tests were also carried out to better understand the behavior of zinc rich coating. EIS and OCP measurements showed that addition of 1 wt% clay improved the cathodic protection duration and sacrificial properties of the epoxy zinc rich coating. Transmission electron microscopy(TEM) photographs confirmed that clay nanoparticles were successfully dispersed in the coating matrix loaded with 1 wt% clay. Immersion test results indicated that addition of 1 wt% clay nanoparticles in zinc rich epoxy coatings increased the cathodic protection ability of coatings.
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