Poly(ophenylenediaminecoaniline)/ZnO coated on passivated low nickel stainless steel

作者: P. Karthikeyan , M. Malathy , R. Rajavel

DOI: 10.1016/J.JSAMD.2016.11.003

关键词: Conductive polymerComposite numberCorrosionMaterials scienceDielectric spectroscopyChemical engineeringLithium perchlorateNickelCoatingMetallurgyTafel equation

摘要: Abstract Iron and its alloys are broadly used in many applications, which have strengthened the research corrosion resistance various neutral provoking environments. Almost powerful inhibitors negative effects on both environment health. Therefore, there is a need for primer that provides outstanding adherence resistance, environmentally safer. The conducting polymer coating metals was found to offer anti-corrosion. In this work, Poly(o-phenylenediamine-co-aniline) copolymers (P(Popd-co-Ani)) Poly(o-phenylenediamine-co-aniline)/ZnO (P(Popd-co-Ani)/ZnO) composite were synthesized using electrochemical techniques borate passivated low nickel stainless steel (LN SS) electrodes from lithium perchlorate acetonitrile solutions containing fixed concentration of monomer different concentrations zinc oxide (ZnO). structural morphological analyses copolymer coatings conducted by Fourier transform-infrared spectroscopy (FT-IR), X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), elemental mapping energy dispersion (EDX). surface topography assessed with an atomic force microscope (AFM), protection behavior these copolymer-coated steels investigated 0.5 M H 2 SO 4 solution potentiodynamic polarization (Tafel) impedance methods. Among as developed protective coatings, P(Popd-co-Ani)/ZnO exhibited best protection.

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