Corrosion inhibition properties of waterborne polyurethane/cerium nitrate coatings on mild steel

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25 Scopus citations

Abstract

Waterborne polyurethane (WBPU)/cerium nitrate (Ce(NO3)3) dispersions were synthesized with different defined Ce(NO3)3 content. All pristine dispersions were stable with different poly(tetramethylene oxide) glycol (PTMG) number average molecular weights (Mn) of 650, 1000, and 2000. The interaction between the carboxyl acid salt group and Ce(NO3)3 was analyzed by Fourier-transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS) techniques. Coating hydrophilicity, water swelling (%), water contact angle, leaching, and corrosion protection efficiency were all affected when using different Ce(NO3)3 content and PTMG molecular weights. The maximal corrosion protection of the WBPU coating was recorded using a higher molecular weight of PTMG with 0.016 mole Ce(NO3)3 content.

Original languageEnglish
Article number34
JournalCoatings
Volume8
Issue number1
DOIs
StatePublished - 1 Jan 2018

Bibliographical note

Publisher Copyright:
© 2018 by the authors.

Keywords

  • Cerium nitrate
  • Coating
  • Corrosion
  • Waterborne polyurethane

ASJC Scopus subject areas

  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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