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Waterborne-Reduced Graphene Oxide Dispersed Bio-Polyester amide Nanocomposites: An Approach towards Eco-Friendly Anticorrosive coatings

Abstract

The waterborne polyesteramide (WBPEA) and their nanocomposite (WBPEA-RGO) were synthesized using soya oil, diethanol amine, phthalic anhydride and RGO nanoparticles. The ethanolic solutions of RGO nanoparticles were dispersed in WBPEA via sonication (WBPEA-RGO) simultaneously both (WBPEA) and (WBPEA-RGO-x) were cured with 80 phr Poly (melamine-co-formaldehyde) isobutylated solution (PMF). Their coatings (WBPEA-PMF-80 and WBPEA-PMF-80-RGO-x) were formulated on finally polished carbon steel strips. The structural elucidation of these materials was made by FT-IR and NMR spectroscopic analysis. The physico-chemical, physico-mechanical, thermal and anticorrosive properties of these coatings were investigated, which revealed that nanocomposite coatings possess remarkably good physico-mechanical [impact resistance (150 lb/in.), scratch resistance (11.5 kg), bend tests (flexibility retentive up to 1/8 inch) properties. The nanocomposite coatings show far superior anticorrosive performance (impedance =107 ohm cm2 and phase angle= 85.6o) in comparison to those of WBPEA-PMF-80 (impedance= 106 ohm cm2 and phase angle=82o) and other such reported coatings.

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Publication details

The article was received on 06 Jul 2018, accepted on 01 Feb 2019 and first published on 05 Feb 2019


Article type: Paper
DOI: 10.1039/C8NJ03383H
Citation: New J. Chem., 2019, Accepted Manuscript

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    Waterborne-Reduced Graphene Oxide Dispersed Bio-Polyester amide Nanocomposites: An Approach towards Eco-Friendly Anticorrosive coatings

    M. Irfan, S. I. BHAT and S. Ahmad, New J. Chem., 2019, Accepted Manuscript , DOI: 10.1039/C8NJ03383H

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