cpomaemКоррозия: защита материалов и методы исследованийTitle in englishИФХЭ РАН10.61852/2949-3412-2024-2-3-159-173cpomaem-72Research ArticleСтатьиПрименение полимеризуемых и алкоксидных гелей для формирования конверсионных покрытий на металлахApplication of polymerizable and alkoxide gels for formation of conversion coatings on metalsМакарычевЮ. Б.MakarychevYu. B.

Ленинский просп.31, корп. 4, Москва, 119071

 Leninsky pr. 31, 119071 Moscow

makarychev-1949@mail.ruГрафовО. Ю.GrafovO. YU.

Ленинский просп.31, корп. 4, Москва, 119071

Leninsky pr. 31, 119071 Moscow

ВершокД. Б.VershokD. B.

Ленинский просп.31, корп. 4, Москва, 119071

Leninsky pr. 31, 119071 Moscow

Институт физической химии и электрохимии им. А.Н. Фрумкина Российской академии наук (ИФХЭ РАН)РоссияA.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of SciencesRussian Federation20241709202403159173Copyright © Макарычев Ю.Б., Графов О.Ю., Вершок Д.Б., 20242024Макарычев Ю.Б., Графов О.Ю., Вершок Д.Б.Makarychev Y.B., Grafov O.Y., Vershok D.B.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.cpmrm.ru/jour/article/view/72

Проведены исследования применения полимеризуемых и алкоксидных гелей для формирования пористых покрытий на металлах. Отмечены основные принципы построения полимеризуемых гелей и их преимущества перед частичными гелями, которые получают из высокодисперсных оксидов металлов. С помощью рентгеновской фотоэлектронной спектроскопии проведены исследования морфологии и химического состава модифицированной с помощью гелей поверхности стальных и магниевых сплавов. Установлено, что при взаимодействии стироль-акриловой дисперсии с магниевым сплавом на его поверхности формируется пористая структура, состоящая из магнийорганических и полимерных структур. На поверхности низкоуглеродистой стали образуется равномерное полимерное покрытие с хорошей адгезией к подложке. Рассмотрен механизм формирования пористых структур диоксида титана на поверхности стали, полученных с помощью золь-гель технологии. Показано, что включение органосиланов в состав пористого геля диоксида титана значительно повышают механическую прочность покрытия и его адгезию к поверхности стали.

The application of polymerizable and alkoxide gels for the formation of porous coatings on metals has been investigated. The basic principles of construction of polymerizable gels and their advantages over partial gels, which are obtained from highly dispersed metal oxides, are noted. The morphology and chemical composition of the surface of steel and magnesium alloys modified with the help of gels have been studied by means of X-ray photoelectron spectroscopy. It was found that when styrene-acrylic dispersion interacts with magnesium alloy, a porous structure consisting of organomagnesium and polymer structures is formed on its surface. A uniform polymer coating with good adhesion to the substrate is formed on the surface of low carbon steel. The mechanism of formation of porous titanium dioxide structures on the steel surface obtained by sol-gel technology is considered. It is shown that the inclusion of organosilanes in the composition of porous titanium dioxide gel significantly increases the mechanical strength of the coating and its adhesion to the steel surface.

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