plasticnewsПластические массыPlasticheskie massy0554-2901PLASTMASSY Publishing House (Moscow)10.35164/0554-2901-2026-01-29-33plasticnews-1213Research ArticleСЫРЬЁ И ВСПОМОГАТЕЛЬНЫЕ МАТЕРИАЛЫRAW AND AUXILIARY MATERIALSВлияние гибридного наполнителя МУНТ/вОГ на электропроводность и положительный температурный коэффициент сопротивления эластомерного нанокомпозитаEffect of modified carbon nanotubes/reduced graphene oxide hybrid filler on electrical conductivity and positive temperature coefficient of resistance of elastomeric nanocompositeЩегольковАлександр В.ShchegolkovAlexander V.energynano@yandex.ruЩегольковАлексей В.ShchegolkovAlexey V.energynano@yandex.ruПироговаА. А.PirogovaA. A.energynano@yandex.ruНикулинП. Н.NikulinP. N.energynano@yandex.ruТамбовский государственный технический университетРоссияTambov State Technical UniversityRussian FederationЦентр проектной деятельности, Московский политехнический университетРоссияCenter of Project Activity, Moscow Polytechnic UniversityRussian Federation202611032026112933Copyright © Щегольков А.В., Щегольков А.В., Пирогова А.А., Никулин П.Н., 20262026Щегольков А.В., Щегольков А.В., Пирогова А.А., Никулин П.Н.Shchegolkov A.V., Shchegolkov A.V., Pirogova A.A., Nikulin P.N.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.plastics-news.ru/jour/article/view/1213

Исследовано влияние гибридного наполнителя МУНТ/вОГ, синтезированного методом лазерной абляции ферроценграфитовой мишени и оксида графена, на свойства эластомерного композита на основе силикона «Силагерм 8030». Методами Рамановской спектроскопии (ID/IG = 1,18–1,19) и электронной микроскопии установлено, что наполнитель представляет собой переплетающиеся нитевидные структуры диаметром 30–100 нм. Показано, что введение 1–4 масс.% гибрида МУНТ/вОГ приводит к синергическому улучшению функциональных характеристик: время выхода на стационарный тепловой режим сократилось на 26% (со 142 до 105 с), а равновесная температура возросла на 8,3°C (от 32,2°C до 40,5°C). Установлено, что наблюдаемый эффект обусловлен формированием развитой проводящей сети в полимерной матрице, где одномерные МУНТ создают протяжённые пути, а двумерные чешуйки вОГ выступают в роли токопроводящих «мостиков». Результаты работы открывают перспективы для создания энергоэффективных саморегулирующихся систем с улучшенными эксплуатационными характеристиками.

The effect of a hybrid filler, modified carbon nanotubes/reduced graphene oxide (MCNT/rGO), synthesized by laser ablation of a ferrocene-graphite target and graphene oxide on the properties of an elastomeric composite based on Silagerm 8030 silicone has been studied. Using Raman spectroscopy (ID/IG = 1.18–1.19) and electron microscopy, it was found that the filler consists of intertwined filamentous structures with a diameter of 30–100 nm. It is shown that the introduction of 1–4 wt.% of the MCNT/rOG hybrid leads to a synergistic improvement in functional characteristics: the time to reach a steady-state thermal regime decreased by 26% (from 142 to 105 s), and the equilibrium temperature increased by 8,3°C (from 32.2°C to 40.5°C). It has been established that the observed effect is due to the formation of a developed conductive network in a polymer matrix, where one-dimensional MCNT create long paths, and two-dimensional flakes of rOG act as conductive "bridges". The results of the work open up prospects for creating energy-efficient self-regulating systems with improved operational characteristics.

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The authors declare that there are no conflicts of interest present.