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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">dan</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады Национальной академии наук Беларуси</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady of the National Academy of Sciences of Belarus</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8323</issn><issn pub-type="epub">2524-2431</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1561-8323-2020-64-1-103-110</article-id><article-id custom-type="elpub" pub-id-type="custom">dan-860</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>ТЕХНИЧЕСКИЕ НАУКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>TECHNICAL SCIENCES</subject></subj-group></article-categories><title-group><article-title>Упрочнение полиэтилентерефталата при наполнении коротким стекловолокном и многостенными углеродными нанотрубками</article-title><trans-title-group xml:lang="en"><trans-title>Strengthening of poly (ethylene terephthalate) by filling with short glass fibers and multi-wall carbon nanotubes</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>Песецкий</surname><given-names>С. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Pesetskii</surname><given-names>S. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Песецкий Степан Степанович - член-корреспондент, доктор технических наук, профессор, заведующий отделом.</p><p>Ул. Кирова, 32а, 246050, Гомель</p></bio><bio xml:lang="en"><p>Pesetskii Stepan S. - Corresponding Member, D. Sc. (Engineering), Professor, Head of the Department.</p><p>32-a, Kirov Str., 246050, Gomel</p></bio><email xlink:type="simple">otdel5mpri@tut.by</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>Дубровский</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Dubrovsky</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дубровский Владислав Викторович - научный сотрудник.</p><p>Ул. Кирова, 32а, 246050, Гомель</p></bio><bio xml:lang="en"><p>Dubrovsky Vladislav V. - Researcher.</p><p>32-a, Kirov Str., 246050, Gomel</p></bio><email xlink:type="simple">vlad.dubrovskii@gmail.com</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>Макаренко</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Makarenko</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Макаренко Ольга Анатольевна - кандидат технических наук, старший научный сотрудник.</p><p>Ул. Кирова, 32а, 246050, Гомель</p></bio><bio xml:lang="en"><p>Makarenko Olga A. - Ph. D. (Engineering), Senior researcher.</p><p>32-a, Kirov Str., 246050, Gomel</p></bio><email xlink:type="simple">makarenko-mpri@tut.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт механики металлополимерных систем имени В. А. Белого, Национальная академиянаук Беларуси</institution></aff><aff xml:lang="en"><institution>V.A. Belyi Metal-Polymer Research Institute, National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>20</day><month>03</month><year>2020</year></pub-date><volume>64</volume><issue>1</issue><fpage>103</fpage><lpage>110</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Песецкий С.С., Дубровский В.В., Макаренко О.А., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Песецкий С.С., Дубровский В.В., Макаренко О.А.</copyright-holder><copyright-holder xml:lang="en">Pesetskii S.S., Dubrovsky V.V., Makarenko O.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://doklady.belnauka.by/jour/article/view/860">https://doklady.belnauka.by/jour/article/view/860</self-uri><abstract><p>Исследовано влияние гибридного наполнения полиэтилентерефталата (ПЭТ) короткими стеклянными волокнами (СВ) и многостенными углеродными нанотрубками (МУНТ) на статические и динамические механические свойства композитов, а также особенности структуры и текучесть расплавов. Компаундирование материалов осуществляли смешением в расплаве ПЭТ методом реакционной экструзии. Исследуемые композиты содержали от 15 до 60 мас. % СВ, концентрация МУНТ составляла 0,5 и 1,6 мас. %. Показано, что при гибридном наполнении ПЭТ наблюдается синергическое повышение прочности и модулей упругости композитов при растяжении и изгибе, а также динамического модуля сдвига в широком интервале температур. Добавки МУНТ интенсифицируют межфазную адгезию, оказывают нуклеирующее влияние на кристаллизацию связующего, повышают его термостабильность.</p></abstract><trans-abstract xml:lang="en"><p>The effect of hybrid filling of poly (ethylene terephthalate) (PET) with short glass fibers (GF) and multi-walled carbon nanotubes (MWCNTs) on the static and dynamic mechanical properties of composites, as well as the structural features and rheological behavior of melts were investigated. Compounding materials was carried out by the PET melt blending with the use of the reaction extrusion method. The studied composites contained from 15 to 60 wt. % GF, the concentration of MWCNTs was 0.5 and 1.6 wt. %. It was shown that the PET hybrid filling led to a synergistic increase in the strength, the elastic modulus and the dynamic shear modulus of composites under tension and bending in a wide temperature range. MWCNT additives intensified interfacial adhesion, had a nucleating effect on the crystallization of the binder, and increased its thermal stability.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>полиэтилентерефталат</kwd><kwd>короткое стекловолокно</kwd><kwd>многостенные нанотрубки</kwd><kwd>гибридное наполнение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>poly (ethylene terephthalate)</kwd><kwd>short glass fiber</kwd><kwd>multi-walled carbon nanotubes</kwd><kwd>hybrid filling</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">Песецкий, С. C. Гибридное микро- и нанонаполнение конструкционных пластиков: синергизм армирующего действия / С. C. Песецкий // Полимерные материалы и технологии. - 2015. - Т. 1, № 2. - С. 5.</mixed-citation><mixed-citation xml:lang="en">Pesetskii S. S. Hibrid micro- and nanofilling of structural plastics: synergism of reinforcing. 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