Abstract
The evaluation of the anti-corrosive performance of polymer composite reinforced with zinc phosphate (DGEBA-DAA-ZP) acts as an effective anti-corrosive coating for 15CDV6 steel in 3wt% NaCl at different exposure times ranging from 60, 120, and 180 days in a salt spray chamber. EIS study revealed that composite formulation (DGEBA-DAA-ZP) acts as strong interface coating. Results showed that magnitude of charge transfer resistance (Rct) and coating resistance (Rpore) gradually decrease on increasing the exposure time. After 1 h exposure time, DGEBA-DAA-ZP formulation exhibited Rct and Rpore values of 16.6 kΩ cm2 and 6.16 kΩ cm2, respectively. However, after 180 days exposure, the Rct and Rpore values lower to Rct and Rpore to 4.21 kΩ cm2and 2.25 kΩ cm2, respectively. MD simulation study demonstrated that DGEBA-DAA-ZP adsorbed on the Cd surface using its flat orientation.
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