Study on AC Impedance Spectra of Ceramic Modified Epoxy Coatings Used for Crude Oil Storage Tank
- 10.2991/amcce-17.2017.76How to use a DOI?
- ceramic particles; epoxy coating; sedimentary water corrosion; impedance spectroscopy
The bottom of the crude oil storage tank is eroded by the sedimentary water for a long time, the main source of which is the ballast water in the ship's transportation. In this paper, sedimentary water was simulated with 3.5% NaCl solution.The structure of self-made ceramic particles modified epoxy coating was analyzed with scanning electron microscopy and the distribution of ceramic components in the coating was tested by EDS spectra, which showed that Al2O3 particles dispersed in the epoxy resin well;SiO2 particles dispersed in the epoxy resin with poor performance. Using electrochemical impedance spectroscopy (EIS) to study the electrochemical behavior of the ceramic modified epoxy coating / carbon system in 3.5% NaCl solution.The coating's corrosion process is divided into three stages.The coating's AC impedance spectra of each period has been analyzed carefully and the corrosion mechanism of ceramic modified epoxy coating in 3.5% NaCl solution was revealed, which provides a reference for the maintenance of crude oil storage tanks.
- © 2017, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - ZhongZheng Gao AU - Weimin Zeng AU - YuLu Ma PY - 2017/03 DA - 2017/03 TI - Study on AC Impedance Spectra of Ceramic Modified Epoxy Coatings Used for Crude Oil Storage Tank BT - Proceedings of the 2017 2nd International Conference on Automation, Mechanical Control and Computational Engineering (AMCCE 2017) PB - Atlantis Press SP - 439 EP - 447 SN - 2352-5401 UR - https://doi.org/10.2991/amcce-17.2017.76 DO - 10.2991/amcce-17.2017.76 ID - Gao2017/03 ER -