Muhammad Zeeshan Khan, Faisal Alsaif, Farooq Aslam
{"title":"温度变化下环氧树脂/SrTiO3纳米复合材料直流击穿性能和介电特性的研究","authors":"Muhammad Zeeshan Khan, Faisal Alsaif, Farooq Aslam","doi":"10.1007/s00396-025-05427-2","DOIUrl":null,"url":null,"abstract":"<div><p>Due to advancements in modern industry, typical high-voltage epoxy (Ep) insulation is inadequate for high temperatures and elevated voltages. To overcome this issue, Ep resin/strontium titanate (SrTiO<sub>3</sub>) nanocomposites were synthesized to mitigate insulating flaws. Nano-SrTiO<sub>3</sub> was modified using the silane coupling agent KH550. The alterations in the molecular chain following the addition of modified nano-SrTiO<sub>3</sub> were assessed using FTIR. <i>T</i><sub>g</sub> confirms that Ep resin/(SrTiO<sub>3</sub>) nanocomposites, at an appropriate filling level, reduces inter-particle distances and increase the amount of immobile Ep areas inside the nanocomposite, hence elevating the glass transition temperature. The incorporation of nano-SrTiO<sub>3</sub> has an obvious effect on both the dielectric constant and dielectric loss of composites. The DC breakdown strength improved with the addition of modified nano-SrTiO<sub>3</sub>, which created deeper traps inside the bulk matrix. Furthermore, the rise in temperature leads to the creation of an electron avalanche, which diminishes charge suppression and hence reduces DC breakdown strength. The DC conductivity decreased after the addition of modified nano-SrTiO<sub>3</sub> into Ep resin. Moreover, the addition of modified nano-SrTiO<sub>3</sub> into Ep resin elevates the partial discharge initiation voltage, hence preventing discharge dispersion prior to reaching flashover. Additionally, reduced temperature significantly impacts the partial discharge inception voltage (PDIV) by lowering the kinetic energy of the charge, prolonging the de-trapping process along the surface and consequently increasing PDIV.</p><h3>Graphical abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"303 7","pages":"1409 - 1421"},"PeriodicalIF":2.3000,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Study on the DC breakdown performance and dielectric characteristics of epoxy resin/SrTiO3 nanocomposites by varying temperature\",\"authors\":\"Muhammad Zeeshan Khan, Faisal Alsaif, Farooq Aslam\",\"doi\":\"10.1007/s00396-025-05427-2\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Due to advancements in modern industry, typical high-voltage epoxy (Ep) insulation is inadequate for high temperatures and elevated voltages. To overcome this issue, Ep resin/strontium titanate (SrTiO<sub>3</sub>) nanocomposites were synthesized to mitigate insulating flaws. Nano-SrTiO<sub>3</sub> was modified using the silane coupling agent KH550. The alterations in the molecular chain following the addition of modified nano-SrTiO<sub>3</sub> were assessed using FTIR. <i>T</i><sub>g</sub> confirms that Ep resin/(SrTiO<sub>3</sub>) nanocomposites, at an appropriate filling level, reduces inter-particle distances and increase the amount of immobile Ep areas inside the nanocomposite, hence elevating the glass transition temperature. The incorporation of nano-SrTiO<sub>3</sub> has an obvious effect on both the dielectric constant and dielectric loss of composites. The DC breakdown strength improved with the addition of modified nano-SrTiO<sub>3</sub>, which created deeper traps inside the bulk matrix. Furthermore, the rise in temperature leads to the creation of an electron avalanche, which diminishes charge suppression and hence reduces DC breakdown strength. The DC conductivity decreased after the addition of modified nano-SrTiO<sub>3</sub> into Ep resin. Moreover, the addition of modified nano-SrTiO<sub>3</sub> into Ep resin elevates the partial discharge initiation voltage, hence preventing discharge dispersion prior to reaching flashover. Additionally, reduced temperature significantly impacts the partial discharge inception voltage (PDIV) by lowering the kinetic energy of the charge, prolonging the de-trapping process along the surface and consequently increasing PDIV.</p><h3>Graphical abstract</h3>\\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":520,\"journal\":{\"name\":\"Colloid and Polymer Science\",\"volume\":\"303 7\",\"pages\":\"1409 - 1421\"},\"PeriodicalIF\":2.3000,\"publicationDate\":\"2025-05-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Colloid and Polymer Science\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s00396-025-05427-2\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Colloid and Polymer Science","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s00396-025-05427-2","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Study on the DC breakdown performance and dielectric characteristics of epoxy resin/SrTiO3 nanocomposites by varying temperature
Due to advancements in modern industry, typical high-voltage epoxy (Ep) insulation is inadequate for high temperatures and elevated voltages. To overcome this issue, Ep resin/strontium titanate (SrTiO3) nanocomposites were synthesized to mitigate insulating flaws. Nano-SrTiO3 was modified using the silane coupling agent KH550. The alterations in the molecular chain following the addition of modified nano-SrTiO3 were assessed using FTIR. Tg confirms that Ep resin/(SrTiO3) nanocomposites, at an appropriate filling level, reduces inter-particle distances and increase the amount of immobile Ep areas inside the nanocomposite, hence elevating the glass transition temperature. The incorporation of nano-SrTiO3 has an obvious effect on both the dielectric constant and dielectric loss of composites. The DC breakdown strength improved with the addition of modified nano-SrTiO3, which created deeper traps inside the bulk matrix. Furthermore, the rise in temperature leads to the creation of an electron avalanche, which diminishes charge suppression and hence reduces DC breakdown strength. The DC conductivity decreased after the addition of modified nano-SrTiO3 into Ep resin. Moreover, the addition of modified nano-SrTiO3 into Ep resin elevates the partial discharge initiation voltage, hence preventing discharge dispersion prior to reaching flashover. Additionally, reduced temperature significantly impacts the partial discharge inception voltage (PDIV) by lowering the kinetic energy of the charge, prolonging the de-trapping process along the surface and consequently increasing PDIV.
期刊介绍:
Colloid and Polymer Science - a leading international journal of longstanding tradition - is devoted to colloid and polymer science and its interdisciplinary interactions. As such, it responds to a demand which has lost none of its actuality as revealed in the trends of contemporary materials science.