Fabrication and evaluation of Rb2Co(H2P2O7)2$2H2O/waterborne polyurethane nanocomposite coating for corrosion protection aspects

M. A. Deyab, Rachid Essehli, B. El Bali, M. Lachkar

Research output: Contribution to journalArticle

6 Citations (Scopus)


Here we investigate the influence of new acidic pyrophosphate (Rb2Co(H2P2O7)2$2H2O) (DP) incorporation in waterborne polyurethane (WBPU) coatings on the corrosion protection efficiency of WBPU coatings for carbon steel in 3.5% NaCl solution. We used potentiodynamic polarization, electrochemical frequency modulation (EFM) and pull-off adhesion and O2 gas permeability measurements to measure the corrosion protection efficiency of the WBPU coating. The dispersion of the DP nano-particles into the WBPU matrix was characterized via TEM observations. We find that the corrosion resistance and mechanical properties of the WBPU coating increase with incorporation of DP nano-particles into the WBPU coating.

Original languageEnglish
Pages (from-to)55074-55080
Number of pages7
JournalRSC Advances
Issue number87
Publication statusPublished - 1 Jan 2017


ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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