{"title":"通过双向改性增强AFRP的介电性能:纤维表面的氟化SiO2蜂窝状结构和树脂基体中掺杂Al2O3纳米颗粒","authors":"Jun Xie, Xiaoyu Shi, Guowei Xia, Bobin Xu, Longyin Qiao, Chengming Hu, Qing Xie","doi":"10.1039/d5nr01711d","DOIUrl":null,"url":null,"abstract":"As the core component of gas-insulated switchgear (GIS) and ultra-high voltage transmission systems, the reliability of high-performance insulating rods is crucial for system stability. Aramid fiber-reinforced epoxy resin composites (AFRP) have become an ideal material for high-performance insulating rods due to their lightweight properties and high strength. However, the interfacial weakening effect in AFRP, caused by the low surface energy and chemical inertness of aramid fibers (AF), remains a critical technical bottleneck limiting its engineering applications. This study constructs a honeycomb-like surface structure on AF through the synergistic interaction of 1H,1H,2H,2H-perfluorodecyltrimethoxysilane (FDTS) and SiO2 nanoparticles. By incorporating Al2O3 nanoparticles into the epoxy matrix, the interfacial bonding strength and insulation properties of AFRP are synergistically enhanced. The interfacial shear strength and tensile strength of AFRP increased by 123.02% and 129.13%, respectively, while the breakdown field strength improved by 64.45%. Analysis of micro-nano structural characterization reveals that the interfacial enhancement originates from the combined effects of AF surface modification and Al2O3 doping, which optimize interfacial insulation properties through non-bonding interactions introduced by FDTS, SiO2, and Al2O3.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"69 1","pages":""},"PeriodicalIF":5.8000,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Enhanced Dielectric Performance of AFRP via Bidirectional Modification: Fluorinated SiO2 Honeycomb-like Architecture on Fiber Surfaces and Al2O3 Nanoparticle Doping in Resin Matrix\",\"authors\":\"Jun Xie, Xiaoyu Shi, Guowei Xia, Bobin Xu, Longyin Qiao, Chengming Hu, Qing Xie\",\"doi\":\"10.1039/d5nr01711d\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"As the core component of gas-insulated switchgear (GIS) and ultra-high voltage transmission systems, the reliability of high-performance insulating rods is crucial for system stability. Aramid fiber-reinforced epoxy resin composites (AFRP) have become an ideal material for high-performance insulating rods due to their lightweight properties and high strength. However, the interfacial weakening effect in AFRP, caused by the low surface energy and chemical inertness of aramid fibers (AF), remains a critical technical bottleneck limiting its engineering applications. This study constructs a honeycomb-like surface structure on AF through the synergistic interaction of 1H,1H,2H,2H-perfluorodecyltrimethoxysilane (FDTS) and SiO2 nanoparticles. By incorporating Al2O3 nanoparticles into the epoxy matrix, the interfacial bonding strength and insulation properties of AFRP are synergistically enhanced. The interfacial shear strength and tensile strength of AFRP increased by 123.02% and 129.13%, respectively, while the breakdown field strength improved by 64.45%. Analysis of micro-nano structural characterization reveals that the interfacial enhancement originates from the combined effects of AF surface modification and Al2O3 doping, which optimize interfacial insulation properties through non-bonding interactions introduced by FDTS, SiO2, and Al2O3.\",\"PeriodicalId\":92,\"journal\":{\"name\":\"Nanoscale\",\"volume\":\"69 1\",\"pages\":\"\"},\"PeriodicalIF\":5.8000,\"publicationDate\":\"2025-06-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nanoscale\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1039/d5nr01711d\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nanoscale","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1039/d5nr01711d","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Enhanced Dielectric Performance of AFRP via Bidirectional Modification: Fluorinated SiO2 Honeycomb-like Architecture on Fiber Surfaces and Al2O3 Nanoparticle Doping in Resin Matrix
As the core component of gas-insulated switchgear (GIS) and ultra-high voltage transmission systems, the reliability of high-performance insulating rods is crucial for system stability. Aramid fiber-reinforced epoxy resin composites (AFRP) have become an ideal material for high-performance insulating rods due to their lightweight properties and high strength. However, the interfacial weakening effect in AFRP, caused by the low surface energy and chemical inertness of aramid fibers (AF), remains a critical technical bottleneck limiting its engineering applications. This study constructs a honeycomb-like surface structure on AF through the synergistic interaction of 1H,1H,2H,2H-perfluorodecyltrimethoxysilane (FDTS) and SiO2 nanoparticles. By incorporating Al2O3 nanoparticles into the epoxy matrix, the interfacial bonding strength and insulation properties of AFRP are synergistically enhanced. The interfacial shear strength and tensile strength of AFRP increased by 123.02% and 129.13%, respectively, while the breakdown field strength improved by 64.45%. Analysis of micro-nano structural characterization reveals that the interfacial enhancement originates from the combined effects of AF surface modification and Al2O3 doping, which optimize interfacial insulation properties through non-bonding interactions introduced by FDTS, SiO2, and Al2O3.
期刊介绍:
Nanoscale is a high-impact international journal, publishing high-quality research across nanoscience and nanotechnology. Nanoscale publishes a full mix of research articles on experimental and theoretical work, including reviews, communications, and full papers.Highly interdisciplinary, this journal appeals to scientists, researchers and professionals interested in nanoscience and nanotechnology, quantum materials and quantum technology, including the areas of physics, chemistry, biology, medicine, materials, energy/environment, information technology, detection science, healthcare and drug discovery, and electronics.