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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">cpomaem</journal-id><journal-title-group><journal-title xml:lang="ru">Коррозия: защита материалов и методы исследований</journal-title><trans-title-group xml:lang="en"><trans-title>Title in english</trans-title></trans-title-group></journal-title-group><publisher><publisher-name>ИФХЭ РАН</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">cpomaem-16</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Статьи</subject></subj-group></article-categories><title-group><article-title>Эволюция электрохимических свойств и цифровое моделирование композиционных полимерных защитных покрытий в агрессивных средах</article-title><trans-title-group xml:lang="en"><trans-title>Evolution of electrochemical properties and digital modeling of composite polymer protective coatings in aggressive environments</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Головин</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Golovin</surname><given-names>V. A.</given-names></name></name-alternatives><email xlink:type="simple">golovin@rocor.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Добриян</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Dobriyan</surname><given-names>S. A.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Институт физической химии и электрохимии им. А.Н. Фрумкина РАН<country>Россия</country></aff><aff xml:lang="en">Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>02</day><month>09</month><year>2023</year></pub-date><volume>0</volume><issue>2</issue><fpage>97</fpage><lpage>120</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Головин В.А., Добриян С.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Головин В.А., Добриян С.А.</copyright-holder><copyright-holder xml:lang="en">Golovin V.A., Dobriyan S.A.</copyright-holder><license license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.cpmrm.ru/jour/article/view/16">https://www.cpmrm.ru/jour/article/view/16</self-uri><abstract><p>Рассмотрены вопросы эволюции электрохимических свойств многослойных полимерных композиционных покрытий и составляющих их грунтовочных и инертных изолирующих слоев на различных металлических подложках в хлоридных средах. Показано, что электрохимические модели для типичных функциональных слоев покрытия (изолирующего и грунтовочного) могут претерпевать существенные изменения в процессе экспозиции в агрессивных средах. Наименьшие изменения наблюдаются для изолирующего слоя с инертной полимерной основой и с инертными наполнителями, нанесенного на инертную (Pt) подложку: цифровая модель описывается простейшей эквивалентной схемой (ЭС) с одним характеристическим процессом релаксации во всем диапазоне времен экспозиции. Для того же покрытия на корродирующей стальной подложке подобная модель корректна только на начальной стадии экспозиции. В дальнейшем, по мере развития подпленочной коррозии, ЭС эволюционирует в систему с двумя релаксационными процессами. В грунтовочных покрытиях с коррозионно- активным металлическим наполнителем (Zn) ситуация усложняется и два релаксационных процесса фиксируются с начального периода экспозиции.Для многослойных композиционных покрытий, содержащих пространственно разделенные слои с активными и инертными наполнителями, на корродирующей стальной подложке идентифицируются три характеристических времени релаксации. Это согласуется с моделью многофазных послойных объемно-наполненных полимерных композитов и обосновывает использование аддитивных ЭС Войта.В рамках данного подхода были предложены цифровые модели эволюции электрохимических свойств для исследованных систем, включая инертные слои на стали и платине, тонкие и многослойные Zn–наполненные грунтовочные слои и многослойные покрытия из перечисленных материалов при разных температурах в хлоридных средах. Полученные результаты позволяют предложить методику неразрушающего EIS контроля физико-химических и коррозионных процессов в композиционных полимерных защитных покрытиях на разных стадиях экспозиции в агрессивных средах.</p></abstract><trans-abstract xml:lang="en"><p>Evolution of electrochemical properties of multilayer polymer composite coatings and their constituent primer and inert insulating layers on various metal substrates in chloride media are considered.It is shown that electrochemical models for typical functional coating layers (insulating and priming) can undergo significant changes during exposure in aggressive environments. The smallest changes are observed for an insulating layer with an inert polymer base and with inert fillers deposited on an inert (Pt) substrate: the digital model is described by the simplest equivalent circuit (ES) with one characteristic relaxation process over the entire exposure time range.For the same coating on a corroding steel substrate, such a model is correct only at the initial stage of exposure. Later, as the under film corrosion develops, the ES evolves into a system with two relaxation processes. In primer coatings with a corrosive metal filler (Zn), the situation becomes more complicated and two relaxation processes are recorded from the initial exposure period.For multilayer composite coatings containing spatially separated layers with active and inert fillers, three characteristic relaxation times are identified on a corroding steel substrate. This is in accordance with the model of multiphase layered bulk-filled polymer composites and justifies the use of additive Voit ES.Digital models of the evolution of electrochemical properties for all the studied systems were proposed, including inert layers on steel and platinum, thin and multilayer Zn–filled primer layers and multilayer coatings of the listed materials at different temperatures in chloride media. The obtained results also allow us to propose a method of non-destructive EIS control of physico-chemical and corrosion processes in composite polymer protective coatings at different stages of exposure in aggressive environments.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>защита от коррозии</kwd><kwd>полимерные покрытия</kwd><kwd>подпленочная коррозия</kwd><kwd>спектроскопия электрохимического импеданса</kwd><kwd>эквивалентная с</kwd></kwd-group><kwd-group xml:lang="en"><kwd>corrosion protection</kwd><kwd>polymer coatings</kwd><kwd>under film corrosion</kwd><kwd>electrochemical impedance spectroscopy</kwd><kwd>equivalent circuit</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">ISO 12944-5. ЛАКИ И КРАСКИ. Защита от коррозии стальных конструкций системами защитных покрытий. 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