Polyaniline-lignosulfonate/epoxy coating for corrosion protection of AA2024-T3

By Gunjan Gupta, Nick Birbilis, A. Cook, A. Khanna. 2013

158 citations recorded by the source corpus.

Abstract Corrosion protection arising from epoxy coatings incorporating lignosulfonate-doped polyaniline (Pani-LGS) upon AA2024-T3 was studied in 0.6 M NaCl. Synthesized Pani-LGS particles were investigated using TEM, FTIR, TGA and conductivity, whilst coatings were also physically examined using SEM. The coating performance was studied using a combination of potentiodynamic polarisation, EIS, FTIR spectroscopy and X-ray photoelectron spectroscopy. The performance of Pani-LGS/epoxy blends is discussed more generally, with tests revealing that on exposure to 0.6 M NaCl solution for 30 days, a 5 wt% Pani-LGS/epoxy coating resulted in low levels of corrosion. A mechanism for the postulated mode of corrosion protection is presented.

Subfields: Biomedical Engineering, Materials Chemistry, Polymers and Plastics

View Paper: https://www.semanticscholar.org/paper/a611cbf657fe1795f4897b67756736f313e00ad5

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In Biomedical Engineering

  1. V. Gelling
  2. Niteen Jadhav
  3. D. Sazou
  4. P. Deshpande

In Polymers and Plastics

  1. V. Gelling
  2. Niteen Jadhav
  3. D. Sazou
  4. P. Deshpande

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