Abstract
Polyaniline (PANI) was covalently linked with hexagonal boron nitride (BN) using p-aminobenzoic acid (ABA) to obtain a PANI-BN powder. The PANI-BN/EP coating was applied on hot-dip galvanized steel, which exhibited remarkable corrosion resistance. Electrochemical test results showed that the impedance modulus in the low-frequency region of PANI-BN/EP was maximum after soaking in NaCl solution (3.5 wt.%) for 72 h compared with other coatings. The outstanding corrosion resistance of the PANI-BN/EP coating was primarily attributed to the synergistic effect of BN and PANI.
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