Electrochemical corrosion resistance performance of sustainable resource-based nanoconducting polymer composites in alkaline medium

Kashif, Mohammad; Ahmad, Najid; Ahmad, Sharif

doi:10.1007/s10008-014-2424-0

Cited by 10 publications

(4 citation statements)

References 53 publications

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“…The high molecular weight solvent borne synthetic polyurethanes (PUs) comprised of short sequences of soft (flexible) polyol chain and hard (rigid) isocyanate segments, exhibiting excellent physicomechanical, UV, and corrosion resistance properties with wide industrial applications in the field of leather, foam, adhesive, paints, and coatings. , However, the main problem with these polymers is their VOC, which causes many environmental and hazardous health problems. While the vegetable oil (VO) based PUs are almost VOC free but exhibit poor mechanical properties that is low toughness and higher elastomeric behavior .…”

Section: Introductionmentioning

confidence: 99%

High-Performance Soya Polyurethane Networked Silica Hybrid Nanocomposite Coatings

Ghosal

Rahman

Ahmad

2015

Ind. Eng. Chem. Res.

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The projected fossil fuel deposits depletion by near future and detrimental effects of petroleum products on environment has led to the development of volatile organic compound (VOC) free low molecular weight sustainable polymers, with promising applications in field of inks, adhesives, paints, and coatings. In view of this, present study reports synthesis, characterization, and anticorrosive performance of SMG-PU and modified SMG-PU through in situ formed silica networks (SMG-PU-TEOS) OIH polymer nanocomposite coatings on CS. The size of ∼30 nm silica nanonetworks were formed within SMG-PU on addition of TEOS, inducing thermal stability, hydrophobic, improved physicomechanical and corrosion resistant properties to polymer nanocomposite coatings. The corrosion protective performance of these coatings in 5% NaCl (salt mist test), 3.5% NaCl, and 3.5% HCl solutions revealed very lower I corr values (3.8891 × 10 −10 A cm −2 and 6.8756 × 10 −9 A cm −2 ) as compared to SMG-PU (1.8159 × 10 −8 A cm −2 and 9.1396 × 10 −7 A cm −2 ), bare CS (8.9131 × 10 −5 A cm −2 and 8.1731 × 10 −4 A cm −2 ), and other such reported systems.

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Section: Introductionmentioning

confidence: 99%

High-Performance Soya Polyurethane Networked Silica Hybrid Nanocomposite Coatings

Ghosal

Rahman

Ahmad

2015

Ind. Eng. Chem. Res.

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“…The composite with PMT performed best, with POT significantly lower protection was noticed. A nanocomposite of POT, castor oil, and polyurethane has been proposed as efficient protection showing about 99% inhibition efficiency even after extended periods of time [119,120]. Reasons for the use of o-toluidine or any particular advantage of its use are not mentioned.…”

Section: Application As Coating For Corrosion Protectionmentioning

confidence: 99%

o-Toluidine in electrochemistry – an overview

Weber

Richter

Holze

2022

J Solid State Electrochem

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The substituted aromatic amine o-toluidine (2-methylaniline, 1-amino-2-methylbenzene) is frequently encountered in electrochemical research as a soluble corrosion inhibitor dissolved in aqueous media used e.g., in cooling systems, as a homomonomer for formation of intrinsically conducting poly-o-toluidine and as a comonomer in formation of respective copolymers and their composites. The obtained polymers are suggested as corrosion protection coatings, as active materials in devices for electrochemical energy storage, but more frequently, they are examined as active components in electrochemical sensors.The significant and pronounced carcinogenicity of o-toluidine has hardly been addressed; presumably, most researchers are not even aware of this property. After a brief summary of the health risks and effects, the following overview presents typical examples of said studies and applications. If possible, substitutes with lower health risks are proposed, at least further studies enabling such replacement are suggested.

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“…EIS is a nondestructive and highly sensitive technique used to analyze the electrochemical corrosion mechanism, to check the metal ion dissolution and coating resistance for the flow of corrosive ions at coating-metal interface. 50 The EIS experiments were carried out on WSA-PMF-80 and WSA-PMF-80-RGO-x coated and uncoated CS under 3.5 wt % NaCl for 216 h to investigate their corrosion inhibition performance of these coatings and long-term barrier effect of RGO on nanocomposite coatings using Nyquist and Bode plots. This study confirmed the promising corrosion inhibition activity of nanocomposite coatings.…”

Section: Acs Sustainable Chemistry and Engineeringmentioning

confidence: 99%

Reduced Graphene Oxide Reinforced Waterborne Soy Alkyd Nanocomposites: Formulation, Characterization, and Corrosion Inhibition Analysis

Irfan

Bhat

Ahmad

2018

ACS Sustainable Chem. Eng.

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The waterborne soya alkyd (WSA) and its RGO dispersed nanocomposites (WSA-RGO) were synthesized via ex situ polymerization using a solvent-less green approach. The soya oil monoglyceride was used as precursor for waterborne alkyd. The synergistic effect of nanofillers and poly melamine coformaldehyde isobutylated solution modified organic matrix (WSA) on physicomechanical and corrosion inhibition of these coatings on finally polished carbon steel (CS) was investigated. Their physicochemical, physicomechanical, and thermal properties were analyzed using standard protocols. The electrochemical corrosion measurements of these coatings were performed using Potentiodynamic Polarization and Electrochemical Impedance Spectroscopy. The aforementioned studies revealed that the nanocomposite coatings exhibit promising corrosion protection performance which is evident from the i corr, E corr, impedance and phase angle values of coatings (i.e., i corr 7.736 × 10–9 Acm–2, E corr −0.191 V, impedance ∼107 Ω cm2, and phase angle 86°). These results suggest that the proposed waterborne nanocomposite coatings exhibit superior corrosion protection property than those of other such earlier reported systems.

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Electrochemical corrosion resistance performance of sustainable resource-based nanoconducting polymer composites in alkaline medium

Cited by 10 publications

References 53 publications

High-Performance Soya Polyurethane Networked Silica Hybrid Nanocomposite Coatings

High-Performance Soya Polyurethane Networked Silica Hybrid Nanocomposite Coatings

o-Toluidine in electrochemistry – an overview

Reduced Graphene Oxide Reinforced Waterborne Soy Alkyd Nanocomposites: Formulation, Characterization, and Corrosion Inhibition Analysis

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