摘要:The electrochemical behavior of primers modified with polyaniline (PANI) and Cashew Nut ShellLiquid (CNSL) was evaluated by using Tafel polarization curves and Electrochemical Impedance Spectroscopy(EIS) in 0.1 M HCl solution. The measurements carried out suggest that primer modified with combined PANIand CNSL mixture were a good corrosion inhibitor. The high concentrations (5%) in both modifier was capablecorrosion inhibitor with highest inhibition efficiency, however, the mixture of these was more efficient. Thisresults were reasonably agreement by measurements obtained with Tafel polarization curves andelectrochemical impedance spectroscopy. The combination of PANI and CNSL inhibitors considerablyimproves the anticorrosive properties of commercial primers.