vguitВестник Воронежского государственного университета инженерных технологийProceedings of the Voronezh State University of Engineering Technologies2226-910X2310-1202VSUET10.20914/2310-1202-2026-2-343-351vguit-3791Research ArticleХимическая технологияFundamental and Applied chemistry, chemical technologyМатематическое моделирование и экспериментальная оценка свойств эпоксидного нанокомпозита ЭД-20 / ЭТАЛ-45М, модифицированного многослойными углеродными нанотрубкамиMathematical Modeling and Experimental Evaluation of the Properties of an ED-20 / ETAL-45M Epoxy Nanocomposite Modified with Multi-Walled Carbon Nanotubeshttps://orcid.org/0000-0003-4575-9224ЗавражинД. О.ZavrazhinD. O.zavrazhin-do@ya.ruhttps://orcid.org/0009-0004-6384-6326ЧудинИ. А.ChudinI. A.aleesan123@gmail.comhttps://orcid.org/0000-0001-8927-7433БураковаЕ. А.BurakovaE. A.elenburakova@ya.ruКузнецоваМ. А.KuznetsovaM. A.mkuzn96@mail.ruhttps://orcid.org/0009-0003-9546-5811ЧуприковаА. А.ChuprikovaA. A.nastyachuprikova@ya.ruФижбахТ. В.FizhbakhT. V.f_timofei@mail.ruТамбовский государственный технический университетРоссияTambov State Technical UniversityRussian Federation202630062026882343351Copyright © Завражин Д.О., Чудин И.А., Буракова Е.А., Кузнецова М.А., Чуприкова А.А., Фижбах Т.В., 20262026Завражин Д.О., Чудин И.А., Буракова Е.А., Кузнецова М.А., Чуприкова А.А., Фижбах Т.В.Zavrazhin D.O., Chudin I.A., Burakova E.A., Kuznetsova M.A., Chuprikova A.A., Fizhbakh T.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.vestnik-vsuet.ru/vguit/article/view/3791

Разработана структурно-феноменологическая математическая модель, предназначенная для инженерного описания свойств эпоксидного нанокомпозита на основе смолы ЭД-20, отвердителя ЭТАЛ-45М и многостенных углеродных нанотрубок. Цель работы состояла в установлении закономерностей изменения прочности при изгибе, ударной вязкости по Шарпи, твёрдости по Бринеллю и весового износа при варьировании содержания нанонаполнителя, а также в оценке применимости модели для неармированных и стеклотканевых композитов. Показано, что для неармированной системы введение углеродных нанотрубок в количестве до 1,0 масс. ч. приводит к росту прочности при изгибе, ударной вязкости по Шарпи и твёрдости по Бринеллю. При содержании 1,5 масс. ч. прочность при изгибе несколько снижается, что указывает на наличие области рационального содержания наполнителя. Для стеклотканевого композиционного материала установлено, что армирование является доминирующим фактором повышения механических свойств. Модель учитывает содержание нанонаполнителя, степень его распределения в матрице, реологические ограничения и особенности пятислойного стеклотканевого армирования. Практическая значимость работы состоит в возможности использования предложенного подхода для предварительного выбора состава и условий получения эпоксидных нанокомпозитов с заданным сочетанием механических и трибологических характеристик.

A structural-phenomenological mathematical model was developed for the engineering description of the properties of an epoxy nanocomposite based on ED-20 resin, ETAL-45M hardener, and multi-walled carbon nanotubes. The aim of the study was to establish the trends in flexural strength, Charpy impact toughness, Brinell hardness, and gravimetric wear loss as a function of nanofiller content, as well as to assess the applicability of the model to both unreinforced and glass-fabric-reinforced composites. It was shown that, for the unreinforced system, the addition of carbon nanotubes up to 1.0 phr results in an increase in flexural strength, Charpy impact toughness, and Brinell hardness. At a filler content of 1.5 phr, the flexural strength decreases slightly, which indicates the existence of an optimal filler-content range. For the glass-fabric-reinforced composite, reinforcement was found to be the dominant factor governing the improvement of mechanical properties. The model takes into account nanofiller content, the degree of its distribution within the matrix, rheological constraints, and the structural features of five-layer glass-fabric reinforcement. The practical significance of the work lies in the possibility of using the proposed approach for the preliminary selection of composition and processing conditions for epoxy nanocomposites with a specified combination of mechanical and tribological characteristics.

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