Rapid Detection and Evaluation Technology for Protective Performance of Organic Coatings and Their Field Application

The detection and evaluation methods for organic coatings performance are summarized, with emphasis on the rapid detection and evaluation methods for coating protective performance based on electrochemical impedance spectroscopy (EIS). Special attention is paid to the method of rapid detection and evaluation for coating protective performance based on phase angle at middle frequency in EIS, its test system and field application. The future developments are prospected.