4.7 Article

Synthetic polyaniline-boron nitride-aqueous epoxy resin composite coating for improving the corrosion resistance of hot-dip galvanized steel plates

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APPLIED SURFACE SCIENCE
卷 592, 期 -, 页码 -

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ELSEVIER
DOI: 10.1016/j.apsusc.2022.153229

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Polyaniline; Boron nitride; Water-based epoxy resin; Hot-dip galvanized steel; Corrosion resistance

资金

  1. Hebei Province Science and Tech-nology Support Program [19274009D]

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PANI-BN powder was obtained by covalently linking PANI with BN. The PANI-BN/EP coating, applied on hot-dip galvanized steel, exhibited outstanding corrosion resistance.
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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