cpomaemКоррозия: защита материалов и методы исследованийTitle in englishИФХЭ РАН10.61852/2949-3412-2023-1-4-63-88cpomaem-29Research ArticleСтатьиУлучшенная гидрофобность для лучшего контроля коррозии за счет специальных самоорганизующихся молекулярных покрытийImproved hydrophobicity for better corrosion control by special self–assembled molecular coatingsПфайферЭ. К.PfeiferÉ. K.

Институт материаловедения и машиностроения

кафедра Функциональных и конструкционных материалов

8200

ул. Эгиетем 10

Веспрем

Institute of Material and Mechanical Engineering

8200

Egyetem Str 10

Veszprém

ТелегдиЮ.TelegdiJ.

Институт химии материалов и окружающей среды

Исследовательский центр естественных наук

факультет легкой промышленности и экологическойинженерии

1117

Будапешт

Institute of Materials and Environmental Chemistry

Department of Functional and Structural Materials

Faculty of Light Industry and Environmental Engineering

1117

Magyar tudósok körútja 2

Budapest

telegdi.judit@ttk.huУниверситет ПаннонииВенгрияUniversity of PannoniaHungaryГруппа функциональных интерфейсов; Университет ОбудаВенгрияResearch Centre for Natural Sciences; Óbuda UniversityHungary202304012024046388Copyright © Пфайфер Э.К., Телегди Ю., 20242024Пфайфер Э.К., Телегди Ю.Pfeifer É.K., Telegdi J.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.cpmrm.ru/jour/article/view/29

   Целью данной работы было получение защитных пленок алкенилфосфоновой кислоты (АПК) в самоорганизующемся молекулярном слое (SАМ) на различных металлах с целью повышения коррозионной стойкости стальных поверхностей.

   В центре внимания работы было влияние состава сплава, а также условий формирования слоя и его последующей обработки с целью получения компактной нанопленки, способной контролировать коррозию металла в среде хлорид–ионов. Влияние параметров формирования слоя на его компактность и коррозионную стойкость характеризовали значениями угла смачивания водой, методами атомно–силовой микроскопии (АСМ), а также параметрами шероховатости. Для повышения компактности слоя АПК–САМ нанопленки подвергались термообработке при различных температурах и интервалах времени. Изменение характеристик слоя, вызванное температурой осаждения и последующей обработкой, было продемонстрировано с помощью углов смачивания влажных материалов и с помощью АСМ. Повышенный антикоррозионный эффект, вызванный правильными условиями подготовки, последующей обработкой, а также составом металла, характеризовался изменением параметров шероховатости, а также морфологии, визуализируемой методом АСМ. Результаты показали, что повышенная антикоррозионная активность компактных нанослоев обусловлена блокировкой активной зоны на поверхности металла за счет формирования барьера между агрессивной средой и поверхностью металла.

   The aim of this work was to prepare protective films of alkenyl phosphonic acid (APC) in self–assembled molecular layer (SAM) on different metals in order to improve the corrosion resistance of steals surfaces.

   The influence of the alloy composition as well as the condition of layer formation and its post–treatment was in the focus of the work in order to prepare compact nanofilm that can control the metal corrosion in chloride ion environment. The influence of layer formation parameters on the layer compactness and on the corrosion resistance were characterized by water contact angle values, by atomic force microscopy (AFM) as well as by roughness parameters. In order to increase the compactness of the APC–SAM layer the nanofilms were heat treated at different temperatures and time intervals. The change in the layer characteristics caused by deposition temperature and by the post–treatments was demonstrated by wet contact angles and by AFM. The increased anticorrosion effect caused by the proper preparation conditions, by post–treatments as well as by the metal composition was characterized by the change in the roughness parameters as well as in the morphology visualized by AFM. The results showed that the increased anticorrosion activity of the compact nanolayers is due to blocking the active area on the metal surface by forming barrier between the aggressive environment and the metal surface.

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