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Journal of Polymer Research

, 26:244 | Cite as

Polypyrrole doped graphene oxide reinforced epoxy nanocomposite with advanced properties for coatings of mild steel

  • Katayoun Amirazodi
  • Mehdi SharifEmail author
  • Mehrdad Bahrani
ORIGINAL PAPER
  • 42 Downloads

Abstract

In this paper epoxy coatings containing Polypyrrole–Graphene Oxide (PPy–GOs) hybrid nanocomposites with various weight fraction (0.5, 1 and 2 wt%) were prepared to investigate the effect of PPy-GO on the enhancement of anti-corrosion properties in epoxy based nanocomposite coatings on mild steel. PPy–GOs hybrids, PPy and GO were characterized by FT-IR, XRD, SEM and TEM analysis and their effect on the anticorrosion performance of the composite coatings, the epoxy (E), epoxy mixed with PPy-GO (EPGs), PPy (EP) and physically mixture of PPy and GO (EP + G) coatings were studied by electrochemical impedance spectroscopy (EIS), potentiodynamic polarization and Open Circuit Potential (OCP). The results demonstrated that the dispersion of PPy-GO hybrids in the epoxy coatings improved corrosion performance of coating compared to the other coatings and maximum corrosion resistance is achieved via adding 0.5 wt.% PPy-GO. This behavior related to the better dispersion and interaction between PPy-GOs hybrids and epoxy matrix compared to other fillers.

Keywords

PPy-GO hybrids Nanocomposites Physically mixture Advanced properties 

Notes

Acknowledgments

The authors acknowledge the main financial resource received from Iran National Science Foundation; contract No. 94001312.

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Copyright information

© The Polymer Society, Taipei 2019

Authors and Affiliations

  • Katayoun Amirazodi
    • 1
  • Mehdi Sharif
    • 1
    Email author
  • Mehrdad Bahrani
    • 1
  1. 1.Department of Polymer Engineering, Shiraz BranchIslamic Azad UniversityShirazIran

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