cpomaemКоррозия: защита материалов и методы исследованийTitle in englishИФХЭ РАН10.61852/2949-3412-2026-4-3-51-64cpomaem-163Research ArticleСтатьиУсиление пассивирующих и защитных свойств тридеканоата натрия добавками ПЭГ-115 на медном сплаве МНЖ5-1 из хлоридных растворовEnhancement of the Passivating and Protective Properties of Sodium Tridecanoate with PEG-115 Additives on Copper Alloy MNZh5-1 from Chloride SolutionsАгафонкинаМ. О.AgafonkinaM. O.

119071, г. Москва, Ленинский проспект, д. 31, корп. 4

Leninsky prospect, 31-4, 119071 Moscow

agafonkina@inbox.ruАндрееваН. П.AndreevaN. P.

119071, г. Москва, Ленинский проспект, д. 31, корп. 4

Leninsky prospect, 31-4, 119071 Moscow

Федеральное государственное бюджетное учреждение науки Институт физической химии и электрохимии им. А.Н. Фрумкина Российской академии наукРоссияFrumkin Institute of Physical Chemistry and Electrochemistry Russian Academy of SciencesRussian Federation202616092026035164Copyright © Агафонкина М.О., Андреева Н.П., 20262026Агафонкина М.О., Андреева Н.П.Agafonkina M.O., Andreeva N.P.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.cpmrm.ru/jour/article/view/163

В работе адсорбционными, поляризационными и гравиметрическими методами изучено совместное применение тридеканоата натрия – NaC13 с полиэтиленгликолем – ПЭГ-115 на медном сплаве в нейтральных хлоридных растворах. Поляризационные измерения показали, что экспозиция МНЖ5-1 в ингибированном растворе в течение 18 часов сдвигает потенциал локальной депассивации МНЖ5-1 в положительную сторону сильнее, чем при отсутствии экспозиции. Из результатов коррозионных испытаний видно, что при 0,5 ммоль/л NaC13+5,0 мг/л ПЭГ-115 наблюдается полная защита сплава в 0,001 моль/л водном растворе NaCl, а в 0,01 моль/л растворе NaCl полная защита происходит при 4,5 ммоль/л NaC13+5,0 мг/л ПЭГ-115. Предварительная экспозиция сплава в ингибированном растворе снижает концентрацию, необходимую для полной защиты сплава: с 4,5 до 2,0 ммоль/л NaC13+5,0 мг/л ПЭГ-115 в 0,01 моль/л водном растворе NaCl.

The combined use of sodium tridecanoate (NaC13) with PEG-115 on copper alloy in neutral chloride solutions was studied using adsorption, polarization, and gravimetric methods. Polarization measurements showed that exposure of MNZh5-1 to an inhibited solution for 18 hours shifts the local depassivation potential of MNZh5-1 positively, more so than without exposure. Corrosion test results show that 0.5 mmol/L NaC13+5.0 mg/L PEG-115 provides complete protection of the alloy in a 0.001 mol/L NaCl aqueous solution, while in a 0.01 mol/L NaCl solution, complete protection occurs at 4.5 mmol/L NaC13+5.0 mg/L PEG-115. Preliminary exposure of the alloy to an inhibited solution reduces the concentration required for complete protection of the alloy: from 4.5 to 2.0 mmol/L NaC13+5.0 mg/L PEG-115 in a 0.01 mol/L NaCl aqueous solution.

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Kazansky, Physicochemical aspects of metal protection by azoles as corrosion inhibitors, Usp. Khim., 2008, 77, no. 3, 227–241. doi: 10.1070/RC2008v077n03ABEH003753V.A. Ogorodnikova, Yu.I. Kuznetsov and A.A. Chirkunov, Inhibition of Corrosion of Mg90 Alloy with Compositions Based on Sodium Oleate. Part I. Salts of Higher Alkenyl and Aryl Carboxylates, Prot. Met. Phys.Chem. Surf., 2021, 24, 1336–1343. doi: 10.1134/S2070205121070121V.A. Ogorodnikova, Yu.I. Kuznetsov and A.A. Chirkunov, Inhibition of Corrosion of Mg90 Alloy with Compositions Based on Sodium Oleate. Part I. Salts of Higher Alkenyl and Aryl Carboxylates, Prot. Met. Phys.Chem. Surf., 2021, 24, 1336–1343. doi: 10.1134/S2070205121070121A.Yu. Luchkin, I.A. Kuznetsov, O.A. Goncharova, S.S. Vesely and N.N. Andreev, Lauric acid and its mixtures as chamber inhibitors of copper corrosion, Int. J. Corros. Scale Inhib., 2024, 13, no. 4, 2424–2437. doi: 10.17675/2305-6894-2024-13-4-29A.Yu. Luchkin, I.A. Kuznetsov, O.A. Goncharova, S.S. 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Andreeva, Adsorption of sodium tridecanoate on copper from aqueous solutions and copper protection from atmospheric corrosion, Int. J. Corros. Scale Inhib., 2018, 7, no. 4, 648–656. doi: 10.17675/2305-6894-2018-7-4-11Ю.И. Кузнецов, И.А. Кузнецов и Н.П. Андреева, Адсорбция тридеканоата натрия на меди из водных растворов и защита ею от атмосферной коррозии, Коррозия: материалы, защита, 2017, №4, 26–32.Ю.И. Кузнецов, И.А. Кузнецов и Н.П. Андреева, Адсорбция тридеканоата натрия на меди из водных растворов и защита ею от атмосферной коррозии, Коррозия: материалы, защита, 2017, №4, 26–32.R. Kardooni and A.R. Kiasat, Polyethylene Glycol (PEG-400): A Green Reaction Medium for One-Pot, Three Component Synthesis of 3-Substituted Indoles under Catalyst Free Conditions, Polycyclic Aromat. Compd., 2019, 1–9. doi: 10.1080/10406638.2019.1703764R. Kardooni and A.R. Kiasat, Polyethylene Glycol (PEG-400): A Green Reaction Medium for One-Pot, Three Component Synthesis of 3-Substituted Indoles under Catalyst Free Conditions, Polycyclic Aromat. Compd., 2019, 1–9. doi: 10.1080/10406638.2019.1703764A. Dahadha, M. Hassan, M. Al-Dhoun, Y. Batineh and M. Abu-Halaweh, Kinetics of oxidation of aspirin by Ce(IV) in surfactant, polymer, and mixed surfactant-polymer media, Colloid Polym. Sci., 2021, 299, 1315–1326. doi: 10.1007/s00396-021-04849-yA. Dahadha, M. Hassan, M. Al-Dhoun, Y. Batineh and M. Abu-Halaweh, Kinetics of oxidation of aspirin by Ce(IV) in surfactant, polymer, and mixed surfactant-polymer media, Colloid Polym. Sci., 2021, 299, 1315–1326. doi: 10.1007/s00396-021-04849-yM. Hassan, M. Al-Dhoun, Y. Batineh, A.A. Najjar, A. Dahadha and Q.A. Ibrahim, Micellar and polymer catalysis in the kinetics of oxidation of L-lysine by permanganate ion in perchloric acid medium, S. Afr. J. Chem., 2021, 75, 73–79. doi: 10.17159/0379-4350/2021/v75a8M. Hassan, M. Al-Dhoun, Y. Batineh, A.A. Najjar, A. Dahadha and Q.A. Ibrahim, Micellar and polymer catalysis in the kinetics of oxidation of L-lysine by permanganate ion in perchloric acid medium, S. Afr. J. Chem., 2021, 75, 73–79. doi: 10.17159/0379-4350/2021/v75a8

The authors declare that there are no conflicts of interest present.