Copper corrosion inhibitors based on polyvinyl alcohol and silver nanoparticles

Grecu, Roxana; Samide, Adriana; Iacobescu, Gabriela; Cioateră, Nicoleta; Popescu, Anca

doi:10.2298/ciceq181027005g

Cited by 16 publications

(12 citation statements)

References 27 publications

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“…Also, the linear diagram was recorded, in the potential range close to corrosion potential (± 20 mV) and the polarization resistance (Rp) was calculated. The experimental method and equipment were reported in our previous studies [35][36][37][38][39][40][41].…”

Section: Electrochemical Measurementsmentioning

confidence: 99%

“…Atomic Force Microscopy was performed as in our previous studies [37,40,41], using a non-contact mode atomic force microscopy (NC-AFM, Park Systems, Suwon, Korea), PARK XE-100 SPM system). The cantilever had a nominal length of 125 mm, a nominal force constant of 40 N m -1 , and oscillation frequencies in the range of 275-373 kHz.…”

Section: Atomic Force Microscopy (Afm)mentioning

confidence: 99%

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Poly(Vinyl Butyral-co-Vinyl Alcohol-co-Vinyl Acetate) Coating Performance on Copper Corrosion in Saline Environment

Samide

Merişanu

Tutunaru

et al. 2019

Preprint

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Poly(vinyl butyral-co-vinyl alcohol-co-vinyl acetate) named further PVBA was investigated as protective coating for copper corrosion in 0.9 % NaCl solution using electrochemical measurements such as, electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization associated with Atomic Force Microscopy (AFM). The PVBA coating on the copper surface (Cu-PVBA) was modeled in methanol containing PVBA. Its inhibitory properties against corrosion was comparatively discussed with those of the copper sample treated in methanol without polymer (Cu-Me) and of untreated sample (standard copper). A protective performance of PVBA coating of 80 % was computed from electrochemical measurements, for copper corrosion in NaCl solution. Also, AFM images designed a specific surface morphology of coated surface with PVBA, clearly highlighting a polymer film adsorbed on the copper surface, which presents certain deterioration after corrosion, but metal surface was not significantly affected compared to those of untreated samples or treated in methanol, in the absence of PVBA.

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Section: Electrochemical Measurementsmentioning

confidence: 99%

Section: Atomic Force Microscopy (Afm)mentioning

confidence: 99%

Poly(Vinyl Butyral-co-Vinyl Alcohol-co-Vinyl Acetate) Coating Performance on Copper Corrosion in Saline Environment

Samide

Merişanu

Tutunaru

et al. 2019

Preprint

Self Cite

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“…Nowadays, various industries are using acids for the purpose of pickling, descaling, cleaning etc., (11)(12)(13)(14). HCl is exceptionally destructive to the metals or mild steel (amalgam of unalloyed metals).…”

Section: Introductionmentioning

confidence: 99%

“…Polyvinyl alcohol (PVA), commonly called as the green polymer, is a synthetic polymer and has been considered as most commonly used water-soluble synthetic polymer due to its biologically accepted nature and biomedical applications (11)(12)(13)30,31).…”

Section: Introductionmentioning

confidence: 99%

Surface assimilation and corrosion inhibition characteristic of water soluble Polyvinyl Alcohol on mild steel surface in 0.5M HCl solution

Dwivedi

Bharti

Shukla

2021

Journal of the Turkish Chemical Society Section A: Chemistry

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As corrosion inhibitors for mild steel in acidic media, polymers are emerging materials due to its larger surface coverage area. This paper focuses on the characteristic of water-soluble solvent polyvinyl alcohol (PVA) at interface of mild steel under 0.5 M HCl, examined using electrochemical impedance spectroscopy, Tafel polarization, and weight reduction techniques. The findings of the study revealed that water-soluble polyvinyl alcohol as polymer inhibitor has restraint abilities, up to 93.7 percent for 3 hours in 0.5 M hydrochloric acid. An advanced form of high spatial resolution imaging of surface of mild steel at different stages was found by using scanning electron microscopy which shows that the sample immersed for 3 hrs in 0.5 M HCl with 100 ppm of water soulble PVA inhibitor provides good inhibition quality to corrosion on mild steel surface.

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“…These materials have been used in the production of condenser tubes for ships, heat exchanger tubing materials in power plants, and other industries, such as pipeline networks, valves, pumps, fittings, etc. [1][2][3][4][5]. Cu-Al alloys, also known as aluminium bronzes, with aluminium contents up to 14 % wt., exhibit an excellent combination of strength and corrosion resistance, making them one of today's most important engineering materials for highly stressed components in corrosive environments.…”

Section: Introductionmentioning

confidence: 99%

Comparison of corrosion behaviour of copper and copper alloys in aqueous chloride solution

Gudić

Vrsalović

Radeljić

et al. 2021

CI&CEQ

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A comparative corrosion study of Cu and Cu-Al, Cu-Al-Ni, Cu-Al-Mn, and Cu-Al-Mn-Ni in 0.5 mol dm-3 NaCl solution was performed using an open circuit potential, potentiodynamic polarization, and electrochemical impedance spectroscopy measurements (EIS). Scanning electron microscopy/Energy-dispersive X-ray spectroscopy (SEM/EDS) analysis was used to evaluate corrosive damage on the sample surface after polarization measurements. The reported results suggest that the alloying elements have reduced cathodic and anodic current densities in the Tafel region, increased anodic currents at higher anodic potentials, and slightly displaced corrosion potential towards more positive values. Overall, impedance increases in the following order: Cu < Cu-Al < Cu-Al-Ni < Cu-Al-Mn < Cu-Al-Mn-Ni. This indicates that Cu alloys possess better corrosion resistance. SEM and EDS analysis after polarization measurements showed uniform dissolution of pure Cu, as well as the presence of a surface oxide layer, consisting of a mixture of the corresponding alloying elements, on all investigated alloys. Aggressive anodic polarization severely damaged the barrier layers on the Cu alloy specimens.

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Copper corrosion inhibitors based on polyvinyl alcohol and silver nanoparticles

Cited by 16 publications

References 27 publications

Poly(Vinyl Butyral-co-Vinyl Alcohol-co-Vinyl Acetate) Coating Performance on Copper Corrosion in Saline Environment

Poly(Vinyl Butyral-co-Vinyl Alcohol-co-Vinyl Acetate) Coating Performance on Copper Corrosion in Saline Environment

Surface assimilation and corrosion inhibition characteristic of water soluble Polyvinyl Alcohol on mild steel surface in 0.5M HCl solution

Comparison of corrosion behaviour of copper and copper alloys in aqueous chloride solution

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