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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">10.35164/0554-2901-2019-5-6-27-29</article-id><article-id custom-type="elpub" pub-id-type="custom">plasticnews-378</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>Неизотермическое формование вязкоупругой полимерной пленки</article-title><trans-title-group xml:lang="en"><trans-title>Non-isothermal process of viscoelastic polymer fi lm casting</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>Баранов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Вaranov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"/><bio xml:lang="en"/><email xlink:type="simple">alexvbaranov@yahoo.co.uk</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Российский государственный университет нефти и газа (национальный исследовательский университет) имени И.М. Губкина</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Gubkin Russian State University of Oil and Gas (National Research University)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>02</day><month>07</month><year>2019</year></pub-date><volume>0</volume><issue>5-6</issue><fpage>27</fpage><lpage>29</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Баранов А.В., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Баранов А.В.</copyright-holder><copyright-holder xml:lang="en">Вaranov 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/378">https://www.plastics-news.ru/jour/article/view/378</self-uri><abstract><p>Рассматривается установившийся неизотермический процесс формования вязкоупругой плоской полимерной пленки. Расплав полимера продавливается через плоскощелевую головку экструдера, подвергается одноосному растяжению и одновременно охлаждению на воздухе, затем поступает на приемно-охлаждающий валок. Предполагается, что пленка достаточно широкая и расстояние между головкой экструдера и приемным валком минимально до такой степени, что можно пренебречь изменением ширины полотна в процессе продольной вытяжки. Считается также, что силами тяжести, инерции и поверхностным натяжением можно пренебречь. С реологической точки зрения расплав полимера представляет собой вязкоупругую жидкость. Используется верхняя конвективная модель Максвелла с вязкостью, зависящей от температуры. Задача решена численно методом конечных разностей.</p></abstract><trans-abstract xml:lang="en"><p>The steady-state non-isothermal process of viscoelastic fl at polymer fi lm casting is considered. The polymer melt is extruded through a fl at die, subjected to uniaxial stretching and at the same time air cooling, and then fi nally cooled down on a chill roll. It is assumed that the fi lm is wide enough, the distance between the extruder die and the cooling roller is minimal to such an extent that it is possible to neglect change of width of a fi lm in the course of longitudinal stretching. It is also believed that the forces of gravity, inertia and surface tension can be ignored. From a rheological standpoint, polymer melt is the viscoelastic fl uid. The upper-convective Maxwell model with temperature-dependent viscosity is used. The problem is solved by a numerical method of fi nite diff erences.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>вязкоупругая жидкость</kwd><kwd>формование пленок</kwd><kwd>теплообмен</kwd></kwd-group><kwd-group xml:lang="en"><kwd>viscoelastic fl uid</kwd><kwd>fi lm casting</kwd><kwd>heat transfer</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">Cotto D., Duff o P., Haudin J.M. Cast fi lm extrusion of polypropylene fi lms // Int. Polym. Proc., 1989, V. 4, No. 2, P. 103-113.</mixed-citation><mixed-citation xml:lang="en">Cotto D., Duff o P., Haudin J.M. Cast fi lm extrusion of polypropylene fi lms // Int. Polym. Proc., 1989, V. 4, No. 2, P. 103-113.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Barq P., Haudin J.M., Agassant J.F. Instability phenomena in fi lm casting process // Int. 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