title: ÐÐ»Ð¸ÑÐ½Ð¸Ðµ Ð¾ÐºÑÐ¸Ð´Ð° ÑÐµÑÐ¸Ñ ÐºÐ°Ðº Ð½Ð°Ð½Ð¾ÑÐ°Ð·Ð¼ÐµÑÐ½Ð¾Ð³Ð¾ Ð°ÐºÑÐ¸Ð²Ð½Ð¾Ð³Ð¾ Ð½Ð°Ð¿Ð¾Ð»Ð½Ð¸ÑÐµÐ»Ñ Ð½Ð° ÑÐ²Ð¾Ð¹ÑÑÐ²Ð° ÑÐµÑÐ¼Ð¾ÑÑÐ¾Ð¹ÐºÐ¸Ñ Ð¿Ð¾Ð»Ð¸Ð¼ÐµÑÐ½ÑÑ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð²
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Impact of cerium oxide as an active nano-sized filler on the properties of the thermally stable polymer materials
Creators: name: ÐÑÐ½ÑÐ¼Ð°Ð½, ÐÐ³Ð¾ÑÑ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: Ð½Ð°Ð½Ð¾ÐºÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÑ
Ð¿Ð¾Ð»Ð¸Ð¸Ð¼Ð¸Ð´Ñ
ÑÐµÑÐ¼Ð¾ÑÑÐ¾Ð¹ÐºÐ¾ÑÑÑ
ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐ° ÑÑÐµÐºÐ»Ð¾Ð²Ð°Ð½Ð¸Ñ
Ð¼ÐµÑ Ð°Ð½Ð¸ÑÐµÑÐºÐ¸Ðµ ÑÐ²Ð¾Ð¹ÑÑÐ²Ð°
nanocomposites
polyimides
thermal stability
glass transition temperature
mechanical properties

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description: The subject of the graduate qualification work is âImpact of cerium oxide as an active nano-sized filler on the properties of the thermally stable polymer materialsâ. This work is devoted to studying the features of the influence of cerium oxide nanoparticles as an active filler on mechanical and thermal properties of aromatic polyimides films with different chemical structures. It was shown that the introduction of cerium oxide nanoparticles into the films of matrix polymers with different chemical structures can lead to both a noticeable increase and a significant decrease of the thermal resistance of the material in the process of thermo-oxidative decomposition. Thus, thermal properties of a nanocomposite based on the polyimide containing SO2-groups in the elementary unit of the polymer chain were found to be substantially enhanced by 20-40 degrees upon incorporation of the nanoparticles in the matrix. However, this effect of nanoparticles is observed only in an oxidizing environment. The thermal stability indices of composite films and matrix polymers in an inert atmosphere differ insignificantly. For the studied polyimides, the introduction of cerium oxide does not have a noticeable effect on the glass transition temperature; however, as was shown, it can contribute to a sequential limitation of the flexibility of some films in the devitrified state. The research found that cerium oxide nanoparticles can definitely be considered as promising material as modifying active filler of materials based on the thermally stable aromatic polyimides.