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<p>Metal corrosion has caused great damage to resource economy, and corrosion protection is particularly important. In this paper, GMZT(GO-MBI-ZIF-67-TEOS) nanomaterial was synthesized to prepare the coating. GMZT nanomaterials were mixed with epoxy resin (EP) electrophoretic coating, and the coating was prepared by electrophoretic deposition (EPD) method. Electrochemical impedance spectroscopy (EIS) test results show that the impedance modulus of GMZT/EP is 3 orders of magnitude higher than that of EP after 35&#xa0;days, which enhances the anticorrosion property of the base film, and the GMZT/EP coating has excellent self-healing property. This is due to the release of the ZIF-67 dissociation ligand and the addition of inhibitors, which form a dense protective film on the metal surface. As a result, the barrier/active anticorrosion properties of epoxy coatings are improved, resulting in superior and long-lasting anticorrosion.</p>

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Electrophoretic deposition of intelligent anticorrosive epoxy coatings doped with pH-stimulated response ZIF-67 nanocontainer

  • 期刊论文

  • 发表日期：

    2025年4月14日

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  • Rui Gou,
  • Yong Li,
  • Qilong Chen,
  • Sha Wang,
  • Dan Sun,
  • Changhua Li,
  • Hongjie Li,
  • Yi He

摘要

Metal corrosion has caused great damage to resource economy, and corrosion protection is particularly important. In this paper, GMZT(GO-MBI-ZIF-67-TEOS) nanomaterial was synthesized to prepare the coating. GMZT nanomaterials were mixed with epoxy resin (EP) electrophoretic coating, and the coating was prepared by electrophoretic deposition (EPD) method. Electrochemical impedance spectroscopy (EIS) test results show that the impedance modulus of GMZT/EP is 3 orders of magnitude higher than that of EP after 35 days, which enhances the anticorrosion property of the base film, and the GMZT/EP coating has excellent self-healing property. This is due to the release of the ZIF-67 dissociation ligand and the addition of inhibitors, which form a dense protective film on the metal surface. As a result, the barrier/active anticorrosion properties of epoxy coatings are improved, resulting in superior and long-lasting anticorrosion.