Investigation of anti-corrosive properties of poly(aniline-co-2-pyridylamine-co-2,3-xylidine) and its nanocomposite poly(aniline-co-2-pyridylamine-co-2,3-xylidine)/ZnO on mild steel in 0.1 M HCl

Alam, Ruman; Mobin, Mohammad; Aslam, Jeenat

doi:10.1016/j.apsusc.2016.02.034

Cited by 28 publications

(7 citation statements)

References 28 publications

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“…By virtue of the linear regression values ( R 2 ) in Figure 11, the best line of fit for the adsorption process was obtained with the Langmuir adsorption isotherm model. The Langmuir isotherm model is expressed as 45 where θ represents the surface coverage, K ads represents the adsorption equilibrium constant, and C inh represents the concentration of the inhibitors. The graphs of C inh /θ against C inh for the studied systems are presented in Figure 11.…”

Section: Results and Discussionmentioning

confidence: 99%

Zinc Oxide Nanocomposites of Selected Polymers: Synthesis, Characterization, and Corrosion Inhibition Studies on Mild Steel in HCl Solution

Quadri¹,

Olasunkanmi

Fayemi³

et al. 2017

ACS Omega

149

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Nanocomposites of ZnO and some selected polymers, namely, poly(ethylene glycol), poly(vinylpyrrolidone), and polyacrylonitrile, were synthesized and characterized using Fourier transform infrared (FTIR) spectroscopy, ultraviolet–visible (UV–vis) spectroscopy, thermogravimetric analysis (TGA), and transmission electron microscopy (TEM) techniques. The FTIR and UV–vis spectra confirmed the successful formation of the polymer nanocomposites. TGA results revealed that the synthesized polymer nanocomposites are more thermally stable than the polymers alone. ZnO nanoparticles were about 50–75 nm in size, assumed a rodlike shape, and got embedded in the polymer matrices, as revealed by TEM images. Corrosion inhibition potentials of the synthesized ZnO/polymer nanocomposites were investigated for mild steel in 5% HCl solution using potentiodynamic polarization (PDP), linear polarization resistance, and electrochemical impedance spectroscopy measurements. The results showed that each ZnO/polymer nanocomposite inhibits mild steel corrosion in 5% HCl solution better than the respective polymer alone. The nanocomposites, according to PDP studies, behaved as a mixed-type inhibitor. The predominant mode of adsorption of the nanocomposites to a mild steel surface was found to be mixed type, and the adsorption process obeys the Langmuir adsorption isotherm model. Scanning electron microscopy images also revealed the protective attributes of the ZnO/polymer nanocomposites for mild steel in 5% HCl solution.

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Section: Results and Discussionmentioning

confidence: 99%

Zinc Oxide Nanocomposites of Selected Polymers: Synthesis, Characterization, and Corrosion Inhibition Studies on Mild Steel in HCl Solution

Quadri¹,

Olasunkanmi

Fayemi³

et al. 2017

ACS Omega

149

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“…The corrosion potential ( E corr ) and corrosion current density ( I corr ) of P(MMA‐ co ‐QA)/P(MMA‐ co ‐HQSEA) coating compared positively with other coatings used for steel substrates (Table S2). 65–72 However, the coating thickness may impact the anticorrosion performance of the coatings.…”

Section: Resultsmentioning

confidence: 99%

Stimuli‐responsive polymeric additives for anticorrosion

Auepattana‐Aumrung

Phakkeeree

Crespy

2021

J of Applied Polymer Sci

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Corrosion is a significant issue for metals and alloys items because it critically affects their lifetimes. To protect the metal from corrosion, corrosion inhibitors can be added into coatings, but the inhibitor can leach into the environment. Polymer‐corrosion inhibitor conjugates are developed to solve this problem. However, corrosion can occur in various fields of applications, which then need a different level and type of metal's protection. β‐thiopropionate and ester linkages between polymer and inhibitor are selected as model for very labile and moderately labile linkages, respectively. The rate of inhibitor's release is controlled by the linkage of conjugated payloads. Corrosion measurements indicated that polymers with the β‐thiopropionate linkage are suitable for severe corrosion and short‐term applications, whereas the polymers with ester linkage can be used for mild corrosion and long‐term applications.

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“…Also, the R ct values were followed the same trend of the R coat as it was significantly increased with adding different content of PPy/ZnO achieving 869 MΩ cm − 2 at 4 wt.% then a fair drop was witnessed (723 MΩ cm − 2 ) at the optimum concentration of PPy/ZnO nanocomposite. It is worth mentioning that the CPE, which consider as a proportional factor for the C dl is inversely proportional to the resistances mentioned above [46]. As the high resistance values, the more sluggish charges transfer, as seen in Table 2.…”

Section: Evaluation Of Anti-corrosion Performancementioning

confidence: 94%

Design of hybrid clay/ polypyrrole decorated with silver and zinc oxide nanoparticles for anticorrosive and antibacterial applications

Jlassi

Sliem

Benslimane

et al. 2020

Progress in Organic Coatings

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In this work, a novel and cost-effective bentonite intercalated with polypyrrole Zinc oxide-silver nanocomposite (B-PPy/ZnO) hybrid material was prepared via in situ photopolymerization of pyrrole in the presence of silanized bentonite and zinc oxide nanoparticles and using silver nitrate as an initiator. The as-prepared Bentonite-polypyrrole/ZnO hybrid material was found to be black, exfoliated with a polypyrrole-rich surface decorated with ZnO and silver nanoparticles in a metallic state. We evaluated the propensity of the prepared hybrid material as an eco-friendly, anticorrosive, and antibacterial coating for carbon steel. The corrosion resistance efficiency study of B-PPy/ZnO composite incorporated with the epoxy matrix was carried out in a 3.5 % NaCl solution. B-PPy/ZnO 4 wt% composite coating on carbon steel was observed to exhibit best corrosion protection property, with High charge transfer resistance were value (9.85 MΩ cm − 2) compared to 0.213 MΩ cm-2 in the presence of pure epoxy. Cytotoxicity assay was carried out on an A549 epithelial cell line. Moreover, B-PPy/ZnO showed a reduction in Escherichia coli bacterial growth by ~86 % with a minimum inhibitory concentration of 0.03 mg ml-1. The results obtained herein will open new routes to the preparation of efficient ecofriendly anticorrosion and antibacterial coatings.

show abstract

Investigation of anti-corrosive properties of poly(aniline-co-2-pyridylamine-co-2,3-xylidine) and its nanocomposite poly(aniline-co-2-pyridylamine-co-2,3-xylidine)/ZnO on mild steel in 0.1 M HCl

Cited by 28 publications

References 28 publications

Zinc Oxide Nanocomposites of Selected Polymers: Synthesis, Characterization, and Corrosion Inhibition Studies on Mild Steel in HCl Solution

Zinc Oxide Nanocomposites of Selected Polymers: Synthesis, Characterization, and Corrosion Inhibition Studies on Mild Steel in HCl Solution

Stimuli‐responsive polymeric additives for anticorrosion

Design of hybrid clay/ polypyrrole decorated with silver and zinc oxide nanoparticles for anticorrosive and antibacterial applications

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