Formation of polymer-like anticorrosive films based on organosilanes with benzotriazole, carboxylic and phosphonic acids. Protection of copper and steel against atmospheric corrosion

Gladkikh, N. A.; Makarychev, Yuriy; Чиркунов, А. А.; Shapagin, A. V.; Петрунин, М. А.; Максаева, Л. Б.; Малеева, М. А.; Yurasova, T. A.; Маршаков, А. И.

doi:10.1016/j.porgcoat.2020.105544

Cited by 17 publications

(31 citation statements)

References 13 publications

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“…Aluminium foil of the A995 brand with a thickness of 200 microns was used. Before the studies, the samples were washed using ultrasound in an ultrasound sapphire-0.8 TC (“Sapphire”, Moscow, Russia), in a mixture of C 2 H 5 OH:C 7 H 8 = 1:1 for 15 min [ 3 , 8 ].…”

Section: Methodsmentioning

confidence: 99%

“…In general, materials based on aluminium and its alloys are protected from corrosion during their usage by means of polymer and paint coatings. Such coatings have been well-established as one of the most effective ways to decrease corrosion risk under various conditions [ 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 ]. Often, for the application of coatings, the metal surface is subjected to a preliminary chemical treatment (finishing).…”

Section: Introductionmentioning

confidence: 99%

“…Organosilanes are artificial compounds that are synthesized from silicon dioxide [ 19 ]. Recently, this class of organosilicon compounds has been used as a metal corrosion inhibitor [ 3 , 7 , 8 , 9 ], including for pretreatment of Al surface from local dissolution [ 15 ]. This is due to its ability to adsorb on metal surfaces with the formation of siloxane structures resulting from polycondensation [ 20 , 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

“…This is due to its ability to adsorb on metal surfaces with the formation of siloxane structures resulting from polycondensation [ 20 , 21 , 22 ]. It has been reported in some papers [ 8 , 23 , 24 , 25 , 26 ] that the presence of organosilanes such as 3—aminopropyltriethoxysilane, 3—glycidoxypropyltrimethoxysilane, ureidopropyltriethoxysilane, vinyltrimethoxysilane on metals promotes resistance to aggressive corrosive environments. However, even with modification of the surface of Al with organosilanes for its protection, research on the adsorption of silanes on aluminium in the presence of corrosive media remains relevant.…”

Section: Introductionmentioning

confidence: 99%

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Adsorption of Organosilanes on the Surface of Aluminium and the Formation of Organosilane Films to Protect It from Corrosion

et al. 2021

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Adsorption of diaminesilane (DAS), vinyltrimethoxysilane (VS) on the surface of thermally precipitated aluminium was examined. The use of different adsorption isotherms made it possible to calculate the adsorption heats for DAS and VS. It was determined that chemisorption of these organosilanes occurred on the surface of aluminium. Exposure of aluminium for 60 min to aqueous solutions of organosilanes led to the formation of organosilane films on the surface of the metal. The use of infrared spectroscopy and scanning electron microscopy in the work made it possible to assess the interactions of organosilanes with the metal surface, as well as to determine the structural features of the films and their thickness. Electrochemical and corrosion research methods made it possible to study the protective properties of organosilane films on aluminium.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Adsorption of Organosilanes on the Surface of Aluminium and the Formation of Organosilane Films to Protect It from Corrosion

et al. 2021

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“…Moreover, its coordination interaction is similar to that of the iron‐catechol system, while the coordination interaction with Cu 2+ is weaker than that of bipyridine/tripyridine ligands (see Supporting Information). [ 17–21 ] In this paper, we expect that the appropriate coordination interaction between BTA and Cu 2+ can be considered as a new dynamic cross‐linking, which can be deconstructed and reconstructed easily by the external forces, thus simultaneously improving the strength and extensibility for novel toughening high performance epoxy resins. To demonstrate the concept, series of Cu 2+ ‐polybenzotriazoles (PEPTDT‐Cu 2+ ) were prepared by a simple copolymerization of 1‐Epoxypropyl benzotriazole (EPT), triethylenetetramine, and bisphenol A diglycidyl ether (DGEBA) in the presence of Cu 2+ ( Figure ).…”

Section: Figurementioning

confidence: 99%

A Toughening and Anti‐Counterfeiting Benzotriazole‐Based High‐Performance Polymer Film Driven by Appropriate Intermolecular Coordination Force

Cao

Yang

et al. 2021

Macromol. Rapid Commun.

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It is of great significance to circumvent the inherent trade‐off between strength and extensibility for epoxy resins. Herein dynamic Cu‐benzotriazole cross‐links are incorporated, as the appropriate intermolecular coordination interaction, into high performance epoxy networks, and the resulting epoxy resins exhibits outstanding thermal stability and mechanical properties, their strength and extensibility are simultaneously improved. Additionally, local manipulation of coordination crosslinking confers the film with anti‐counterfeiting function.

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Experimental and modeling analysis on the performance of 2-mercaptobenzimidazole corrosion inhibitor in hydrochloric acid solution during acidizing in the petroleum industry

Khormali

Ahmadi

2023

J Petrol Explor Prod Technol

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In this work, the corrosion inhibition of carbon steel in 1 molar HCl solution was evaluated by experimental and modeling approaches using 2-mercaptobenzimidazole (2-MBI). To this end, an experimental design for the weight loss method using response surface methodology (RSM) was carried out and the corrosion rate (CR) and inhibition efficiency (IE) were determined. The study was completed at various values of temperature, exposure time, and inhibitor concentration to determine the optimal conditions for corrosion prevention. Using experimental data on the corrosion rate and inhibition efficiency of 2-MBI, new models were developed, the significance of which was tested using ANOVA-analysis of variance. The developed RSM-based CR and IE models were highly accurate and reliable, and their P-values were less than 0.0001. The novelty of this study lies in the newly developed model for the evaluation of 2-MBI inhibition performance and its application to high-temperature conditions in the petroleum industry. Besides, the R2-statistics (R2, adjusted-R2, and predicted-R2), adequate precision and diagnostic plots were used as main measures to verify the accuracy and adequacy of both CR and IE models. In addition, it was observed that inhibitor concentration had the most impact on both CR and IE models compared to other parameters due to its largest F-values (561.65 for CR and 535.56 for IE models). Moreover, the results indicated that adding 140–150 ppm of 2-MBI at low-level temperatures of 30–35 °C had the most interaction effect on the performance of the corrosion inhibition process. In this case, the CR was less than 0.9 mm/y and the IE more than 94%, even after a high exposure time of 105 h. Furthermore, numerical optimization of the corrosion inhibition process for 2-MBI showed that the optimum conditions for maximum IE and minimum CR were achieved at a concentration of 115 ppm, temperature of 30.7 °C, and exposure time of 60.4 h. Under these conditions, the efficiency and corrosion rate were 92.76% and 0.53 mm/y, respectively. Finally, the adsorption of 2-MBI on the sample surface was studied at various exposure times and temperatures. In all cases, the adsorption behavior obeyed the Langmuir isotherm. In this case, the Gibbs adsorption free energy varied from − 33 to − 37 kJ/mol, which reflects both physical and chemical adsorption of the corrosion inhibitor at all tested temperatures and test times.

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Formation of polymer-like anticorrosive films based on organosilanes with benzotriazole, carboxylic and phosphonic acids. Protection of copper and steel against atmospheric corrosion

Cited by 17 publications

References 13 publications

Adsorption of Organosilanes on the Surface of Aluminium and the Formation of Organosilane Films to Protect It from Corrosion

Adsorption of Organosilanes on the Surface of Aluminium and the Formation of Organosilane Films to Protect It from Corrosion

A Toughening and Anti‐Counterfeiting Benzotriazole‐Based High‐Performance Polymer Film Driven by Appropriate Intermolecular Coordination Force

Experimental and modeling analysis on the performance of 2-mercaptobenzimidazole corrosion inhibitor in hydrochloric acid solution during acidizing in the petroleum industry

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