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Epoxy/alpha-alumina nanocomposite with high electrical insulation performance
Chen, Yun1,2; Zhang, Donghai1; Wu, Xiaofeng1; Wang, Haosheng1; Zhang, Chong2; Yang, Wei2; Chen, Yunfa1

An experimental study was conducted to improve the electrical insulation of epoxy resin. The effects of boehmite, gamma-alumina and alpha-alumina nanoparticles on the volume resistivity, dielectric strength and glass transition temperature of epoxy nanocomposites were investigated. The results showed that alpha-alumina nanoparticles displayed obvious advantages in enhancing electrical insulation performance of epoxy nanocomposites, compared to boehmite and gamma-alumina nanoparticles. The direct current volume resistivity and breakdown strength of epoxy nanocomposite with 2.0 wt% alpha-alumina nanoparticles was improved to 2.2 x 10(18) Omega cm and 76.1 kV mm(-1) respectively. And these improved values of electrical insulation properties are much higher than these of epoxy nanocomposites reported in previous studies. The main reason of these improvements may be that the epoxy/alpha-alumina interaction zone was enhanced by crosslink.

KeywordNanocomposite Epoxy Resin Insulation Alpha-alumina
WOS HeadingsScience & Technology ; Technology
Indexed BySCI
WOS KeywordEnhanced Thermal-conductivity ; Epoxy Composites ; Boron-nitride ; Dielectric Nanocomposites ; Clay Nanocomposites ; Gamma-alumina ; Behavior ; Fillers ; Resin ; Oxide
WOS Research AreaMaterials Science ; Science & Technology - Other Topics
WOS SubjectMaterials Science, Multidisciplinary ; Multidisciplinary Sciences
Funding OrganizationNational Key Research and Development Program of China(2017YFB0903804) ; Science and Technology Program of the State Grid Corporation of China(5455DW160007)
WOS IDWOS:000415692500007
Citation statistics
Document Type期刊论文
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Global Energy Interconnect Res Inst, State Key Lab Adv Transmiss Technol, Beijing 102211, Peoples R China
Recommended Citation
GB/T 7714
Chen, Yun,Zhang, Donghai,Wu, Xiaofeng,et al. Epoxy/alpha-alumina nanocomposite with high electrical insulation performance[J]. PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL,2017,27(5):574-581.
APA Chen, Yun.,Zhang, Donghai.,Wu, Xiaofeng.,Wang, Haosheng.,Zhang, Chong.,...&Chen, Yunfa.(2017).Epoxy/alpha-alumina nanocomposite with high electrical insulation performance.PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL,27(5),574-581.
MLA Chen, Yun,et al."Epoxy/alpha-alumina nanocomposite with high electrical insulation performance".PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL 27.5(2017):574-581.
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