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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">chemicallytech</journal-id><journal-title-group><journal-title xml:lang="en">Fine Chemical Technologies</journal-title><trans-title-group xml:lang="ru"><trans-title>Тонкие химические технологии</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2410-6593</issn><issn pub-type="epub">2686-7575</issn><publisher><publisher-name>MIREA – Russian Technological University (RTU MIREA).</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32362/2410-6593-2021-16-4-345-351</article-id><article-id custom-type="elpub" pub-id-type="custom">chemicallytech-1727</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="en"><subject>SYNTHESIS AND PROCESSING OF POLYMERS AND POLYMERIC COMPOSITES</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>СИНТЕЗ И ПЕРЕРАБОТКА ПОЛИМЕРОВ И КОМПОЗИТОВ НА ИХ ОСНОВЕ</subject></subj-group></article-categories><title-group><article-title>Effect of relaxation processes during deformation on electrical resistivity of carbon black polypropylene composites</article-title><trans-title-group xml:lang="ru"><trans-title>Влияние релаксационных процессов при деформировании на электрическое сопротивление полипропиленовых композитов с техническим углеродом</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7952-7419</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Марков</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Markov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Марков Анатолий Викторович, д.т.н., профессор кафедры химии и технологии переработки пластмасс и полимерных композитов Института тонких химических технологий им. М.В. Ломоносова</p><p>119571, Москва, пр-т Вернадского, д. 86</p></bio><bio xml:lang="en"><p>Anatoly V. Markov, Dr. Sci. (Eng.), Professor, Department of Chemistry and Technology of Plastic Processing and Polymer Composites, M.V. Lomonosov Institute of Fine Chemical Technologies</p><p>86, Vernadskogo pr., Moscow, 119571</p></bio><email xlink:type="simple">markovan@bk.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>Тарасова</surname><given-names>К. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Tarasova</surname><given-names>K. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тарасова Кристина Сергеевна, магистр кафедры химии и технологии переработки пластмасс и полимерных композитов Института тонких химических технологий им. М.В. Ломоносова</p><p>119571, Москва, пр-т Вернадского, д. 86</p></bio><bio xml:lang="en"><p>Kristina S. Tarasova, Master, Department of Chemistry and Technology of Plastic Processing and Polymer Composites, M.V. Lomonosov Institute of Fine Chemical Technologies</p><p>86, Vernadskogo pr., Moscow, 119571</p></bio><email xlink:type="simple">shkarypa-kristina1992@ya.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5768-9107</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Марков</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Markov</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Марков Василий Анатольевич, аспирант кафедры химии и технологии переработки пластмасс и полимерных композитов, Института тонких химических технологий им. М.В. Ломоносова</p><p>119571, Москва, пр-т Вернадского, д. 86</p></bio><bio xml:lang="en"><p>86, Vernadskogo pr., Moscow, 119571</p></bio><email xlink:type="simple">vasily@markov.biz</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>МИРЭА – Российский технологический университет (Институт тонких химических технологий им. М.В. Ломоносова)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>MIREA – Russian Technological University (M.V. Lomonosov Institute of Fine Chemical Technologies</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>28</day><month>09</month><year>2021</year></pub-date><volume>16</volume><issue>4</issue><fpage>345</fpage><lpage>351</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Markov A.V., Tarasova K.S., Markov V.A., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Марков А.В., Тарасова К.С., Марков В.А.</copyright-holder><copyright-holder xml:lang="en">Markov A.V., Tarasova K.S., Markov V.A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" 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.finechem-mirea.ru/jour/article/view/1727">https://www.finechem-mirea.ru/jour/article/view/1727</self-uri><abstract><p>Objectives. To study the relationship between bending deformation and the change in the electrical resistance of carbon black polypropylene composites.Methods. Conductive polypropylene composites filled with carbon black UM-76 were investigated. The samples were deformed and kept under constant bending at temperatures of 20–155 °C.Results. The deformation of the samples led to a reversible increase in their electrical resistance, while subsequent holding of the samples in the deformed state was accompanied by an exponential drop in their electrical resistance. The average times and activation energies of the electrical relaxation of the deformed polypropylene composites were calculated (30–32 kJ/mol) and compared with similar characteristics of polyethylene composites (15–16 kJ/mol).Conclusions. The electrical resistance relaxation of deformed carbon black polypropylene composites at elevated temperatures is similar to their stress relaxation. The average times and activation energies of the electrical relaxation of deformed polypropylene composites are comparable with similar data on their mechanical relaxation. It was found that these electrical and mechanical phenomena are based on the same underlying physical processes.</p></abstract><trans-abstract xml:lang="ru"><p>Цели. Работа посвящена изучению влияния деформации изгиба при повышенных температурах на изменение электрического сопротивления электропроводящих полипропиленовых композитов, наполненных техническим углеродом.Методы. Исследовались полипропиленовые композиты с техническим углеродом УМ-76. Образцы изгибались и выдерживались при заданном прогибе в интервале 20–155 °C.Результаты. При деформировании образцов наблюдался обратимый рост электрического сопротивления. Последующая выдержка образцов в деформированном состоянии сопровождалась экспоненциальным падением их электрического сопротивления. Были рассчитаны средние времена и энергия активации электрической релаксации деформированных полипропиленовых композитов (30–32 кДж/моль), а также проведено их сравнение с аналогичными характеристиками полиэтиленовых композитов (около 14–16 кДж/моль).Выводы. При механическом деформировании электропроводящих полипропиленовых композитов с техническим углеродом, в том числе при повышенных температурах, характер релаксации электрического сопротивления аналогичен характеру релаксации механического напряжения. Средние времена и энергия активации электрической релаксации деформированных полипропиленовых композитов сопоставимы с аналогичными показателями для механической релаксации. Это указывает на общий механизм этих процессов.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>электропроводящий полипропилен</kwd><kwd>технический углерод</kwd><kwd>электрическое сопротивление</kwd><kwd>деформация</kwd><kwd>релаксация</kwd><kwd>эффект ПТК</kwd></kwd-group><kwd-group xml:lang="en"><kwd>conductive polypropylene composites</kwd><kwd>carbon black</kwd><kwd>electrical resistivity</kwd><kwd>deformation</kwd><kwd>relaxation</kwd><kwd>PTC effect</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при поддержке государственной субсидии (базовая часть) № 496332017/54 от 01.02.2017 г.</funding-statement><funding-statement xml:lang="en">This work was supported by the state subsidy (basic part) No. 496332017/54 dated 01.02.2017.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Zhang W., Dehghani-Sanij A.A., Blackburn. 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