Petroleum Science >2019,??Issue 6:??1-13 DOI: https://doi.org/10.1007/s12182-019-00381-5
Effects of direct stray current on the performance of cathodic disbonding epoxy powder coatings Open?Access
文章信息
作者：Yan-Yu Cui, Rui-Tao Bu, De-You Wang, Yu-Jun Wang
作者单位：
College of AirportCivil Aviation University of ChinaTianjinPeople’s Republic of China; Beijing Aviation Oil Construction Limited Company, Beijing, China
投稿时间：2018-11-05
引用方式：Cui, YY., Bu, RT., Wang, DY. et al. Pet. Sci. (2019). https://doi.org/10.1007/s12182-019-00381-5
文章摘要
The influence of the direction and magnitude of direct (DC) stray current on the disbonding performance of epoxy powder coating was studied by using electrochemical impedance spectroscopy and scanning electron microscopy technology. The results show that the application of DC stray current could accelerate the anodic dissolution. The peeling degree of the coating increases as the magnitude of positive DC stray current interference increases in the range of 2–8 V. With 16 V positive stray current disturbance, the degree of coating disbonding decreases. With the application of negative stray current, the coating peeling becomes more serious, and the degree of peeling increases as the DC stray current increases.
关键词
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Epoxy powder coating, DC stray current, Coating disbanding