Superior multifunctional polypyrrole anticorrosion coating modified by polydopamine decorated barium titanate nanoparticles on NiTi shape memory alloys

Marashi-Najafi, F.; Khalil-Allafi, J.; Mahdavi, S.

doi:10.1016/j.jmrt.2023.09.071

Cited by 5 publications

(1 citation statement)

References 60 publications

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“…For instance, at 303 K, the inhibition efficiency ranges from 55.98% (50 ppm) to 93.75% (500 ppm), indicating effective corrosion inhibition even at higher temperatures ( Figure 2 ). This suggests that the inhibitor maintains its effectiveness in reducing corrosion rates, even in more aggressive environments at higher temperatures ( Swathi et al, 2023b ; Marashi-Najafi et al, 2023 ). Despite the challenges posed by elevated temperatures, the inhibitor demonstrates its effectiveness in mitigating corrosion across different temperature ranges.…”

Section: Resultsmentioning

confidence: 99%

Unraveling the corrosion inhibition behavior of prinivil drug on mild steel in 1M HCl corrosive solution: insights from density functional theory, molecular dynamics, and experimental approaches

Thakur,

Kumar,

Dagdag

et al. 2024

Front. Chem.

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The deterioration of mild steel in an acidic environment poses a significant challenge in various industries. The emergence of effective corrosion inhibitors has drawn attention to studies aimed at reducing the harmful consequences of corrosion. In this study, the corrosion inhibition efficiency of Prinivil in a 1M HCl solution through various electrochemical and gravimetric techniques has been investigated for the first time. The results demonstrated that the inhibition efficiency of Prinivil expanded from 61.37% at 50 ppm to 97.35% at 500 ppm concentration at 298 K. With a regression coefficient (R2) of 0.987, Kads value of 0.935 and Ea value of 43.024 kJ/mol at 500 ppm concentration of inhibitor, a strong affinity of Prinivil for adsorption onto the metal surface has been significantly found. Scanning electron microscopy (SEM) and contact angle measurement analyses further support the inhibitory behavior of Prinivil, demonstrating the production of a defensive layer on the surface of mild steel. Additionally, molecular dynamics (MD) and Monte Carlo simulations were employed to investigate the stability and interactions between Prinivil and the metallic surface (Fe (1 1 0)) at the atomic level. The computed results reveal strong adsorption of Prinivil upon the steel surface, confirming its viability as a corrosion inhibitor.

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Section: Resultsmentioning

confidence: 99%

Unraveling the corrosion inhibition behavior of prinivil drug on mild steel in 1M HCl corrosive solution: insights from density functional theory, molecular dynamics, and experimental approaches

Thakur,

Kumar,

Dagdag

et al. 2024

Front. Chem.

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Improved performance of epoxy resin coating with the modification of dopamine doped Ti₄O₇

Lin,

Wang,

2024

Polymer Composites

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In this paper, a dense and well‐adherent polydopamine‐Ti4O7/epoxy resin (PDA‐Ti4O7/EP) composite coating is successfully prepared. The modified grafting of Ti4O7 by polydopamine (PDA) is achieved through the coordination complexation of unstable catechol groups in PDA with coordination unsaturated Ti atoms in Ti4O7. The potentiodynamic polarization curve and electrochemical impedance spectroscopy test results show that the performance of the composite coating is improved compared with that of the pure epoxy coating, and the composite coating slows down the penetration of electrolytes and aggressive ions and improves the corrosion resistance. The composite coating with 2 wt.% PDA‐Ti4O7 filler shows the best corrosion resistance, and its |Z|0.01 Hz remains above 1011 Ω cm2 after 30 days of immersion in 3.5 wt% NaCl solution. This can be attributed to the good barrier property of PDA‐Ti4O7 filler, which carries NH2 and OH reactive groups, interacting with the resin and matrix to improve the dispersion of the filler and the adhesion of the composite coating. The NH2 group reacts with the epoxy group in the epoxy resin in a ring‐opening reaction, which avoids the agglomeration of the filler and the uniformly dispersed filler fills the pores in the coating due to curing to improve the denseness of the coating and give full play to the barrier property of the filler. At the same time, the hydrogen bonding between the filler and the OH group in the resin and the substrate increases the adhesion of the coating. In addition, the unstable catechol group in PDA chelates with iron ions to further improve the overall corrosion resistance of the coating.Highlights A dense and well‐adherent PDA‐Ti4O7/EP coating is successfully prepared. PDA connect with Ti4O7 through coordination of catechol groups and Ti atom. PDA‐Ti4O7 are chemically bonded to the EP through a ring‐opening reaction. PDA‐Ti4O7 improves the crosslinking density and barrier ability of the coating.

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ZnO and Cu/ZnO-modified Magnesium orthopedic implant with improved osteoblast cellular activity: An in-vitro study

Mehdizade,

Eivani,

Esmaielzadeh

et al. 2024

Journal of Materials Research and Technology

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Superior multifunctional polypyrrole anticorrosion coating modified by polydopamine decorated barium titanate nanoparticles on NiTi shape memory alloys

Cited by 5 publications

References 60 publications

Unraveling the corrosion inhibition behavior of prinivil drug on mild steel in 1M HCl corrosive solution: insights from density functional theory, molecular dynamics, and experimental approaches

Unraveling the corrosion inhibition behavior of prinivil drug on mild steel in 1M HCl corrosive solution: insights from density functional theory, molecular dynamics, and experimental approaches

Improved performance of epoxy resin coating with the modification of dopamine doped Ti₄O₇

ZnO and Cu/ZnO-modified Magnesium orthopedic implant with improved osteoblast cellular activity: An in-vitro study

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Superior multifunctional polypyrrole anticorrosion coating modified by polydopamine decorated barium titanate nanoparticles on NiTi shape memory alloys

Cited by 5 publications

References 60 publications

Unraveling the corrosion inhibition behavior of prinivil drug on mild steel in 1M HCl corrosive solution: insights from density functional theory, molecular dynamics, and experimental approaches

Unraveling the corrosion inhibition behavior of prinivil drug on mild steel in 1M HCl corrosive solution: insights from density functional theory, molecular dynamics, and experimental approaches

Improved performance of epoxy resin coating with the modification of dopamine doped Ti4O7

ZnO and Cu/ZnO-modified Magnesium orthopedic implant with improved osteoblast cellular activity: An in-vitro study

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Product

Resources

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Improved performance of epoxy resin coating with the modification of dopamine doped Ti₄O₇