MEASURING METHOD OF ANTI-CORROSION PERFORMANCE FOR PHOTO-CATALYTIC EFFECT COATING

摘要

PURPOSE: A method for measuring an anti-corrosion performance of a photo-catalytic effect coating is provided to precisely measure a corrosion and an anti-corrosion phenomenon of metal by measuring optical current variation through varying voltage applied to a photo-catalytic coating. CONSTITUTION: A value of discharged current according to a variation of voltage supplied to a non-coating conductive plate deposited in a conductive solution is measured in order to obtain an interrelation of measured current depending on voltage variation. After forming a photo-catalytic coating layer on the conductive plate, the conductive plate is immersed in the conductive solution. Then, a value of discharged current according to a variation of voltage is measured while radiating light energy onto the photo-catalyst layer, thereby obtaining an interrelation of measured current depending on voltage variation. After that, an anti-corrosion performance of the photo-catalyst coating is measured.