jamtJournal of Advanced Materials and TechnologiesJournal of Advanced Materials and Technologies2782-21922782-2206ФГБОУ ВО «ТГТУ»10.17277/jamt-2025-10-02-117-128jamt-72Research ArticleСтатьиХимостойкие наноструктурированные защитные покрытия для металлических поверхностейChemically resistant nanostructured protective coatings for metal surfaceshttps://orcid.org/0000-0001-6138-5272ПчельниковА. В.Pchel’nikovA. V.Пчельников Александр Владимирович, доктор технических наук, доцент, заведующий кафедройНовосибирскAlexander V. Pchel’nikov, D. Sc. (Eng.), Associate Professor, Head of the DepartmentNovosibirskПичугинА. П.PichuginA. P.Пичугин Анатолий Петрович, доктор технических наук, профессор, главный научный сотрудникНовосибирскAnatoly P. Pichugin, D. Sc. (Eng.), Professor, Chief ResearcherNovosibirskScopus ID 57213826487Новосибирский государственный аграрный университетРоссияNovosibirsk State Agricultural University (NSAU)Russian FederationНовосибирский государственный аграрный университетРоссияNSAURussian Federation202517022026102117128Copyright © Пчельников А.В., Пичугин А.П., 20262026Пчельников А.В., Пичугин А.П.Pchel’nikov A.V., Pichugin A.P.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://jamt.elpub.ru/jour/article/view/72Цель работы заключается в разработке наноструктурированных защитных покрытий с высокой химической стойкостью для металлических поверхностей. Для модификации лакокрасочных материалов применялись составы на основе углеродных нанотрубок (УНТ), наночастиц оксида висмута, диоксида кремния, диоксида титана, гидроксида магния и алюминия. Введение в акриловый лакокрасочный материал наноматериалов способствовало увеличению адгезионной прочности покрытий, так наилучший эффект определен при введении УНТ, в количестве 0,1 % – адгезионная прочность повышается с 2,0…2,2 до 2,9…3,1 МПа при изменении характера отрыва лакокрасочного покрытия от подложки с полностью адгезионного (100 %) на адгезионно-когезионный. Оценка химической стойкости наноструктурированных лакокрасочных покрытий с УНТ показала, что при воздействии на покрытия раствора гербицида, они сохраняют свою массу вне зависимости от концентрации модификатора, при этом их твердость не изменяется (Н). Оценка равновесной степени набухания позволила определить, что лакокрасочные покрытия с наночастицами оксида висмута и УНТ обладают устойчивостью к растворителям и приобретают более сетчатую структуру по отношению к покрытиям без добавок. Сканирование различных участков поверхностей образцов на АСМ показало, что при модификации нанодобавками оксида висмута и УНТ поверхность становится более гладкой, нанометровая шероховатость уменьшается с 50…60 до 20…30 нм. Более существенное уменьшение выступов наблюдается у покрытий модифицированных УНТ, что говорит об упрочнении покрытия за счет уменьшения размеров углублений и пор.The aim of this study is to develop nanostructured protective coatings with high chemical resistance for metal surfaces. To modify paints and varnishes, compositions based on carbon nanotubes (CNTs), bismuth oxide nanoparticles, silicon dioxide, titanium dioxide, magnesium hydroxide and aluminum hydroxide were used. The introduction of nanomaterials into acrylic paint and varnish material helps to increase the adhesive strength of coatings, so the best effect was determined with the introduction of CNTs in the amount of 0.1 % – the adhesive strength increased from 2.0–2.2 MPa to 2.9–3.1 MPa with a change in the nature of the separation of the paint and varnish coating from the substrate from fully adhesive (100 %) to adhesive-cohesive. Evaluation of the chemical resistance of nanostructured paint and varnish coatings modified with CNTs showed that when the coatings were exposed to an herbicide solution, they retained their weight regardless of the concentration of the modifier, while their hardness did not change (H). Evaluation of the equilibrium swelling rate made it possible to determine that paint and varnish coatings modified with bismuth oxide nanoparticles and CNTs are resistant to solvents and acquire a more mesh structure in relation to coatings without additives. Scanning of various sections of the sample surfaces on atomic force microscope (AFM) showed that when modified with bismuth oxide and CNT nanoadditives, the surface becomes smoother, and the nanometer roughness decreases from 50–60 nm to 20–30 nm. A more significant reduction in protrusions is observed in coatings modified with CNTs, which indicates that the coating is strengthened by reducing the size of depressions and pores.наноматериалынаноструктурированные покрытиялакокрасочные покрытия и материалыадгезионная прочностьхимическая стойкостьметаллические конструкцииуглеродные нанотрубкиоксид висмутаnanomaterialsnanostructured coatingspaint and varnish coatings and materialsadhesive strengthchemical resistancemetal structurescarbon nanotubesbismuth oxideReferencesShneiderova VV, Migaeva GS, Kirillova TA, Kolesnikova PYu, et al. Guidelines for the protection of building metal structures operating in aggressive environments and various climatic conditions. 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The authors declare that there are no conflicts of interest present.