Dielectric and Thermal Properties of Epoxy/POSS Composites
Li Pengxin1, Cui Haozhe1, Xing Zhaoliang2, Guo Ning3, Min Daomin1
1. State Key Laboratory of Electrical Insualtion and Power Equipment; Xi'an Jiaotong University Xi'an 710049 China; 2. State Key Laboratory of Advanced Power Transmission Technology Global Energy Interconnection Research Institute Co. Ltd Beijing 102209 China; 3. State Key Laboratory of Intense Pulsed Radiation Simulation and Effect Northwest Institute of Nuclear Technology Xi'an 710024 China
Abstract In this paper, the effect and mechanism of a new material, G-POSS, on the dielectric and thermal properties of epoxy resin (EP) were studied. The EP/POSS composites with 0wt%, 0.5wt%, 1wt%, 2wt%, 3wt% and 5wt% of G-POSS were fabricated in the experiments. The permittivity, AC breakdown strength and glass transition temperature were measured and analyzed for composites. The performance of the EP/POSS composite is improved with the increase of the G-POSS content when the G-POSS content is low. When the content of G-POSS reaches 2wt%, the performance of the composite has been greatly improved. When the G-POSS continues to increase, the performance of the composite begins to decrease, even inferior to the pristine epoxy resin. It is believed that the formed cross-linking networks in the epoxy matrix due to the G-POSS have a great influence on the performance of EP/POSS composites.
Li Pengxin,Cui Haozhe,Xing Zhaoliang等. Dielectric and Thermal Properties of Epoxy/POSS Composites[J]. Transactions of China Electrotechnical Society, 2022, 37(2): 291-298.
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2022, Vol. 37 
