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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">plasticnews</journal-id><journal-title-group><journal-title xml:lang="ru">Пластические массы</journal-title><trans-title-group xml:lang="en"><trans-title>Plasticheskie massy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0554-2901</issn><publisher><publisher-name>PLASTMASSY Publishing House (Moscow)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.35164/0554-2901-2026-02-23-26</article-id><article-id custom-type="elpub" pub-id-type="custom">plasticnews-1233</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>АНАЛИЗ И МЕТОДЫ РАСЧЁТА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ANALYSIS AND CALCULATION METHODS</subject></subj-group></article-categories><title-group><article-title>Влияние состава дисперсий полиуретана на твердость композиционных полировальных материалов</article-title><trans-title-group xml:lang="en"><trans-title>Influence of composition of polyurethane dispersions on the hardness of composite polishing materials</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>Кожевникова</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kozhevnikova</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Годин</surname><given-names>Н. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Godin</surname><given-names>N. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жалыбина</surname><given-names>А. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhalybina</surname><given-names>A. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow </p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сорокина</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Sorokina</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow </p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дедов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Dedov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow </p></bio><email xlink:type="simple">dedovs55@rambler.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО «Российский государственный университет имени А.Н. Косыгина»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>A.N. Kosygin Russian State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГАОУ ВО «Московский политехнический университет»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow Polytechnic University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>15</day><month>05</month><year>2026</year></pub-date><volume>1</volume><issue>2</issue><fpage>23</fpage><lpage>26</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кожевникова О.В., Годин Н.И., Жалыбина А.Ю., Сорокина А.С., Дедов А.В., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Кожевникова О.В., Годин Н.И., Жалыбина А.Ю., Сорокина А.С., Дедов А.В.</copyright-holder><copyright-holder xml:lang="en">Kozhevnikova O.V., Godin N.I., Zhalybina A.Y., Sorokina A.S., Dedov A.V.</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.plastics-news.ru/jour/article/view/1233">https://www.plastics-news.ru/jour/article/view/1233</self-uri><abstract><p>Исследовано влияние состава водных дисперсий полиуретана на твердость композиционных полировальных материалов, полученных пропиткой дисперсиями нетканого иглопробивного полотна из полиэтилентерефталатных волокон линейной плотности 0,33 текс. Дополнительно учитывали влияние на твердость материалов изменения объема полотна в процессе пропитки. Использовали дисперсии IMPRANIL DL 1380 (КНР) и отечественные дисперсии Аквапол-11 и Аквапол-21. Получены зависимости твердости композиционных материалов от степени пропитки и коэффициента пористости. При равной степени пропитки максимальную твердость имеют композиционные материалы, полученные пропиткой полотна дисперсией IMPRANIL DL 1380 (КНР). Твердость материалов зависит от подвижности волокон поверхностного слоя полотна и композиционных материалов. Изменение структуры поверхностного слоя полотна в процессе пропитки определяется смачиваемостью волокон дисперсиями полиуретанов.</p></abstract><trans-abstract xml:lang="en"><p>The influence of the composition of aqueous polyurethane dispersions on the hardness of composite polishing materials obtained by impregnating a non-woven needle-punched fabric made of polyethylene terephthalate fibers with a linear density of 0.33 tex with the dispersions has been studied. Additionally, the effect of change in the fabric’s volume during impregnation process on the hardness of the materials was taken into account. IMPRANIL DL 1380 (PRC) and domestic Aquapol-11 and Aquapol-21 dispersions were used. The relationships between the hardness of the composite materials and the degree of impregnation as well as the porosity coefficient have been obtained. At the same degree of impregnation, the composite materials obtained by impregnating the fabric with IMPRANIL DL 1380 dispersion (PRC) exhibit the maximum hardness. The hardness of materials depends on the mobility of the fibers of the surface layer of the fabric and composite materials. The change in the structure of the surface layer of the fabric during the impregnation process is determined by the wettability of the fibers by the polyurethane dispersions.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>нетканое полотно</kwd><kwd>дисперсии полиуретана</kwd><kwd>твердость композиционных материалов</kwd></kwd-group><kwd-group xml:lang="en"><kwd>nonwoven fabric</kwd><kwd>polyurethane dispersions</kwd><kwd>hardness of composite materials</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">Dubrovski P.D., Brezocnik M. 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