Influence of zinc oxide nanoparticles on flashover voltage of unsaturated polyester resin-based composites for electrical insulators
Introduction. Polyester-based composites are increasingly used in electrical applications for their insulation, mechanical, and thermal properties. Nanofillers have shown promise in enhancing the properties of polymer-based composites. Goal. This study aims to improve the flashover voltage of unsatu...
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| Date: | 2026 |
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National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine
2026
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| Online Access: | https://eie.khpi.edu.ua/article/view/352704 |
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| Journal Title: | Electrical Engineering & Electromechanics |
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Electrical Engineering & Electromechanics| _version_ | 1859471847364493312 |
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| author | Rihan, M. Ghazzaly, A. Fahmy, A. H. Ebnalwaled, A. A. Nasrat, L. S. |
| author_facet | Rihan, M. Ghazzaly, A. Fahmy, A. H. Ebnalwaled, A. A. Nasrat, L. S. |
| author_sort | Rihan, M. |
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| datestamp_date | 2026-03-01T22:04:33Z |
| description | Introduction. Polyester-based composites are increasingly used in electrical applications for their insulation, mechanical, and thermal properties. Nanofillers have shown promise in enhancing the properties of polymer-based composites. Goal. This study aims to improve the flashover voltage of unsaturated polyester resin (UPR)-based composites by incorporating zinc oxide (ZnO) nanoparticles. Methodology. UPR/ZnO nanocomposites were prepared with various ZnO nanofiller ratios (0 %, 1 %, 3 %, 5 %, and 7 % by weight) with different sample lengths (0.5, 1.5, 2, and 2.5 cm). The flashover voltage was measured for the pure UPR sample and each composition of the studied filler ratios at various sample lengths. X-ray diffraction analysis was performed. A curve-fitting method was applied to estimate the flashover voltage of UPR/ZnO nanocomposites containing intermediate filler ratios between those experimentally tested. Results. Incorporation of ZnO nanofillers significantly enhanced the flashover voltage of polyester-based nanocomposites. The pure UPR sample exhibited the lowest flashover voltage, whereas the composite with 7 wt.% ZnO nanofiller demonstrated the highest. Notably, increasing the sample length further improved flashover voltage. Scientific novelty. This study examines the influence of ZnO nanoparticles on the flashover voltage of UPR-based composites. Practical value. The obtained findings can contribute to the development of polyester-based nanocomposite insulators with enhanced flashover voltage. References 26, tables 3, figures 6. |
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| id | eiekhpieduua-article-352704 |
| institution | Electrical Engineering & Electromechanics |
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| language | English |
| last_indexed | 2026-03-12T15:49:02Z |
| publishDate | 2026 |
| publisher | National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine |
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| spelling | eiekhpieduua-article-3527042026-03-01T22:04:33Z Influence of zinc oxide nanoparticles on flashover voltage of unsaturated polyester resin-based composites for electrical insulators Influence of zinc oxide nanoparticles on flashover voltage of unsaturated polyester resin-based composites for electrical insulators Rihan, M. Ghazzaly, A. Fahmy, A. H. Ebnalwaled, A. A. Nasrat, L. S. unsaturated polyester resin zinc oxide filler nanocomposites flashover voltage curve fitting technique ненасичена поліефірна смола оксид цинку наповнювач нанокомпозити напруга пробою метод апроксимації кривої Introduction. Polyester-based composites are increasingly used in electrical applications for their insulation, mechanical, and thermal properties. Nanofillers have shown promise in enhancing the properties of polymer-based composites. Goal. This study aims to improve the flashover voltage of unsaturated polyester resin (UPR)-based composites by incorporating zinc oxide (ZnO) nanoparticles. Methodology. UPR/ZnO nanocomposites were prepared with various ZnO nanofiller ratios (0 %, 1 %, 3 %, 5 %, and 7 % by weight) with different sample lengths (0.5, 1.5, 2, and 2.5 cm). The flashover voltage was measured for the pure UPR sample and each composition of the studied filler ratios at various sample lengths. X-ray diffraction analysis was performed. A curve-fitting method was applied to estimate the flashover voltage of UPR/ZnO nanocomposites containing intermediate filler ratios between those experimentally tested. Results. Incorporation of ZnO nanofillers significantly enhanced the flashover voltage of polyester-based nanocomposites. The pure UPR sample exhibited the lowest flashover voltage, whereas the composite with 7 wt.% ZnO nanofiller demonstrated the highest. Notably, increasing the sample length further improved flashover voltage. Scientific novelty. This study examines the influence of ZnO nanoparticles on the flashover voltage of UPR-based composites. Practical value. The obtained findings can contribute to the development of polyester-based nanocomposite insulators with enhanced flashover voltage. References 26, tables 3, figures 6. Вступ. Композити на основі поліестеру все частіше використовуються в електротехніці завдяки своїм ізоляційним, механічним та тепловим властивостям. Нанонаповнювачі виявилися перспективними для покращення властивостей композитів на основі полімерів. Мета. Це дослідження спрямоване на підвищення напруги пробою композитів на основі ненасиченої поліефірної смоли (UPR) шляхом включаючи наночастинок оксиду цинку (ZnO). Методика. Нанокомпозити UPR/ZnO були виготовлені з різними масовими частками нанонаповнювача ZnO (0 %, 1 %, 3 %, 5 % та 7 % за масою) з різною довжиною зразків (0.5, 1.5, 2 та 2.5 см). Напругу пробою вимірювали для чистого зразка UPR та кожної композиції з досліджуваними концентраціями наповнювача при різній довжині зразків. Було проведено рентгенівський дифракційний аналіз. Метод апроксимації кривих було застосовано для оцінки напруги пробою нанокомпозитів UPR/ZnO з проміжними концентраціями наповнювача між експериментально дослідженими. Результати. Включення нанонаповнювачів ZnO суттєво підвищило напругу пробою поліефірних нанокомпозитів. Чистий зразок UPR продемонстрував найнижчу напругу пробою, тоді як композит із 7 мас.% нанонаповнювача ZnO показав найвищу. Примітно, що збільшення довжини зразка додатково підвищувало напругу пробою. Наукова новизна. У дослідженні розглянуто вплив наночастинок ZnO на напругу пробою композитів на основі UPR. Практична значимість. Отримані результати можуть сприяти розробці поліефірних нанокомпозитних ізоляторів із підвищеною напругою пробою. Бібл. 26, табл. 3, рис. 6. National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine 2026-03-02 Article Article application/pdf https://eie.khpi.edu.ua/article/view/352704 10.20998/2074-272X.2026.2.11 Electrical Engineering & Electromechanics; No. 2 (2026); 84-88 Электротехника и Электромеханика; № 2 (2026); 84-88 Електротехніка і Електромеханіка; № 2 (2026); 84-88 2309-3404 2074-272X en https://eie.khpi.edu.ua/article/view/352704/339385 Copyright (c) 2026 M. Rihan, A. Ghazzaly, A. H. Fahmy, A. A. Ebnalwaled, L. S. Nasrat http://creativecommons.org/licenses/by-nc/4.0 |
| spellingShingle | unsaturated polyester resin zinc oxide filler nanocomposites flashover voltage curve fitting technique Rihan, M. Ghazzaly, A. Fahmy, A. H. Ebnalwaled, A. A. Nasrat, L. S. Influence of zinc oxide nanoparticles on flashover voltage of unsaturated polyester resin-based composites for electrical insulators |
| title | Influence of zinc oxide nanoparticles on flashover voltage of unsaturated polyester resin-based composites for electrical insulators |
| title_alt | Influence of zinc oxide nanoparticles on flashover voltage of unsaturated polyester resin-based composites for electrical insulators |
| title_full | Influence of zinc oxide nanoparticles on flashover voltage of unsaturated polyester resin-based composites for electrical insulators |
| title_fullStr | Influence of zinc oxide nanoparticles on flashover voltage of unsaturated polyester resin-based composites for electrical insulators |
| title_full_unstemmed | Influence of zinc oxide nanoparticles on flashover voltage of unsaturated polyester resin-based composites for electrical insulators |
| title_short | Influence of zinc oxide nanoparticles on flashover voltage of unsaturated polyester resin-based composites for electrical insulators |
| title_sort | influence of zinc oxide nanoparticles on flashover voltage of unsaturated polyester resin-based composites for electrical insulators |
| topic | unsaturated polyester resin zinc oxide filler nanocomposites flashover voltage curve fitting technique |
| topic_facet | unsaturated polyester resin zinc oxide filler nanocomposites flashover voltage curve fitting technique ненасичена поліефірна смола оксид цинку наповнювач нанокомпозити напруга пробою метод апроксимації кривої |
| url | https://eie.khpi.edu.ua/article/view/352704 |
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