CORROSION INHIBITION OF LOW PHOSPHONIC MULTIPOLYMER WATER TREATMENT AGENT TO BRASS

A low phosphonic multipolymer was synthesized and its corrosion inhibition efficiency to brass in a synthetic water was investigated.The results of weight loss measurements showed the inhibition efficiency was 702%,when the concentration of the low phosphonic multipolymer inhibitor in the synthetic water was 8mg·L-1.The element analysis at the surface of brass specimens and electrochemical tests showed that the inhibitive mechanism of the multipolymer was to inhibit the anodic reaction mainly due to chemical adsorption of the multipolymer inhibitor on active places of the brass specimen surface.