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Journal of Polymer Research

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01-10-2019 | ORIGINAL PAPER

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

Authors: Katayoun Amirazodi, Mehdi Sharif, Mehrdad Bahrani

Published in: Journal of Polymer Research | Issue 10/2019

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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.

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Title: Polypyrrole doped graphene oxide reinforced epoxy nanocomposite with advanced properties for coatings of mild steel
Authors: Katayoun Amirazodi
Mehdi Sharif
Mehrdad Bahrani
Publication date: 01-10-2019
Publisher: Springer Netherlands
Published in: Journal of Polymer Research / Issue 10/2019
Print ISSN: 1022-9760
Electronic ISSN: 1572-8935
DOI: https://doi.org/10.1007/s10965-019-1905-3

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