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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">zldm</journal-id><journal-title-group><journal-title xml:lang="ru">Заводская лаборатория. Диагностика материалов</journal-title><trans-title-group xml:lang="en"><trans-title>Industrial laboratory. Diagnostics of materials</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1028-6861</issn><issn pub-type="epub">2588-0187</issn><publisher><publisher-name>ООО «Издательство «ТЕСТ-ЗЛ»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26896/1028-6861-2019-85-10-64-69</article-id><article-id custom-type="elpub" pub-id-type="custom">zldm-1086</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>ИССЛЕДОВАНИЕ СТРУКТУРЫ И СВОЙСТВ. МЕХАНИКА МАТЕРИАЛОВ: ПРОЧНОСТЬ, РЕСУРС, БЕЗОПАСНОСТЬ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>TESTING OF STRUCTURE AND PARAMETERS. MECHANICAL TESTING METHODS</subject></subj-group></article-categories><title-group><article-title>Методика испытаний на растяжение гидратированных гель-пленок бактериальной целлюлозы</article-title><trans-title-group xml:lang="en"><trans-title>Tensile test for hydrated gel-films of bacterial cellulose</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>Голубев</surname><given-names>Д. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Golubev</surname><given-names>D. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дмитрий Сергеевич Голубев</p><p>659322, Бийск, ул. Социалистическая, д. 1; 659305, Бийск, ул. имени Героя Советского Союза Трофимова, д. 27</p></bio><bio xml:lang="en"><p>Dmitrii S. Golubev1,2, </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>Бычин</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bychin</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Николай Валерьевич Бычин</p><p>659322, Бийск, ул. Социалистическая, д. 1</p></bio><bio xml:lang="en"><p>Nikolai V. Bychin</p><p>Ul. Sotsialisticheskaya 1, Biisk, 659322</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>Будаева</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Budaeva</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Вера Владимировна Будаева</p><p>659322, Бийск, ул. Социалистическая, д. 1</p></bio><bio xml:lang="en"><p>Vera V. Budaeva</p><p>Ul. Sotsialisticheskaya 1, Biisk, 659322</p></bio><email xlink:type="simple">budaeva@ipcet.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Скиба</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Skiba</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Екатерина Анатольевна Скиба</p><p>659322, Бийск, ул. Социалистическая, д. 1; 659305, Бийск, ул. имени Героя Советского Союза Трофимова, д. 27</p></bio><bio xml:lang="en"><p>Ekaterina A. Skiba</p><p>Ul. Sotsialisticheskaya 1, Biisk, 659322; Ul. Imeni Geroya Sovetskogo Soyuza Trofimova, 27, Biisk, 659305</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт проблем химико-энергетических технологий, Сибирское отделение Российской академии наук; Бийский технологический институт (филиал) Алтайский государственный технический университет им. И.И. Ползунова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute for Problems of Chemical and Energetic Technologies, Siberian Branch, Russian Academy of Sciences; Biisk Technological Institute, Polzunov Altai State Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт проблем химико-энергетических технологий, Сибирское отделение Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute for Problems of Chemical and Energetic Technologies, Siberian Branch, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>30</day><month>10</month><year>2019</year></pub-date><volume>85</volume><issue>10</issue><fpage>64</fpage><lpage>69</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Голубев Д.С., Бычин Н.В., Будаева В.В., Скиба Е.А., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Голубев Д.С., Бычин Н.В., Будаева В.В., Скиба Е.А.</copyright-holder><copyright-holder xml:lang="en">Golubev D.S., Bychin N.V., Budaeva V.V., Skiba E.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.zldm.ru/jour/article/view/1086">https://www.zldm.ru/jour/article/view/1086</self-uri><abstract><p>Благодаря уникальным физико-химическим свойствам и биосовместимости бактериальная целлюлоза имеет множество применений. Во многих случаях использования бактериальной целлюлозы важно знать ее механические характеристики: модуль Юнга, прочность при разрыве, относительное удлинение при максимальной нагрузке. Разнообразие методик не позволяет сравнить полученные разными исследователями результаты термомеханического анализа бактериальной целлюлозы. Однако существующие стандарты определения механических характеристик не предназначены для высокогидратированных образцов и не учитывают условия их применения. Цель работы — разработка методики испытаний на растяжение гидратированных гель-пленок бактериальной целлюлозы и сравнение показателя их относительного удлинения при исследовании на воздухе и в водной среде. Образцы для исследования получали на синтетической питательной среде, в качестве продуцента использовали симбиотическую культуру Medusomyces gisevii Sa-12. Физико-механический анализ проводили на термомеханическом анализаторе ТМА-60. В ходе исследования подбирали такую скорость нагружения, при которой не происходило высушивание образца при испытаниях на воздухе. Микрофибрилярную структуру образцов бактериальной целлюлозы исследовали до и после растяжения методом растровой электронной микроскопии (JSM-840). Результаты исследований показали, что при различных скоростях нагружения прочность на разрыв различается в 16 раз, модуль Юнга — в 1,3 раза, а относительное удлинение при максимальной нагрузке — в 1,5 раза. Максимальное относительное удлинение гидратированной бактериальной целлюлозы в водной среде составило 51,4 %, что в 3,1 раза больше, чем при растяжении образца на воздухе. Рекомендованная скорость нагружения составила 20 г/мин. В процессе растяжения изменяется структура бактериальной целлюлозы: после испытаний волокна бактериальной целлюлозы выстраиваются вдоль вектора нагружения. Структурированная таким образом бактериальная целлюлоза приобретает анизотропные свойства.</p></abstract><trans-abstract xml:lang="en"><p>Bacterial cellulose (BC) finds multiple applications due to unique physicochemical properties and biocompatibility. The mechanical characteristics of hydrated BC such as Young modulus, tear strength, and tensile elongation under maximum load are crucial in some instances. The diversity of test methods does not allow correct comparison of the results of BC thermomechanical analysis (TMA) obtained by different researchers. However, current standards for determination of the mechanical characteristics are not intended for highly hydrated samples and do not take into account conditions for their use. The goal of the study is to develop a tensile test method for hydrated gel films of bacterial cellulose and to compare their relative elongation when tested in air and in an aqueous medium. Test samples were produced in a synthetic nutrient broth using Medusomyces gisevii Sa-12 symbiont. Physico-mechanical analysis was performed on a TMA-60 thermomechanical analyzer. The loading rate was selected proceeding from the requirement that the specimen will not dry out when tested in air. The microfibrillar structure of BC samples was studied before and after stretching using scanning electron microscope (JSM-840). The results showed that at different loading rate, tensile strength varies by a factor of 16, Young’s modulus, and elongation at maximum load by a factor of 1.3 and 1.5, respectively. The maximum tensile elongation of hydrated BC in an aqueous medium (51.4%) is 3.1 times larger compared to that determined for the test specimen tested in air. The recommended loading rate is 20 g/min. The BC structure changes during tension: after testing the BC fibers line up along the load vector and thus structured bacterial cellulose acquires the anisotropic properties.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гидратированная бактериальная целлюлоза</kwd><kwd>Medusomyces gisevii</kwd><kwd>механические характеристики</kwd><kwd>модуль Юнга</kwd><kwd>термомеханический анализ</kwd><kwd>относительное удлинение</kwd><kwd>растровая электронная микроскопия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>hydrated bacterial cellulose</kwd><kwd>Medusomyces gisevii</kwd><kwd>mechanical behavior</kwd><kwd>Young modulus</kwd><kwd>thermomechanical analysis</kwd><kwd>tensile elongation</kwd><kwd>scanning electron microscopy (SEM)</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">Klemm D., Heublein B., Fink H.-P., Bohn A. 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