青岛科技大学  English 
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教师拼音名称:malili

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学历:博士研究生

办公地点:CCF1213

性别:女

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学位:博士

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材料学

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High Energy Density PVDF-Based Composites with Efficient Stripping of Boron Nitride Nanosheets

关键字:POLYMER NANOCOMPOSITES; HIGH PERMITTIVITY; STORAGE; DIELECTRICS; EXFOLIATION; FILLER; LAYER

摘要:Bronnitride nanosheets (BNNS) have attracted considerable interest in preparing high energy density (U-e) polymer nanocomposites due to its intrinsic high breakdown strength and thermal conductivity. However, efficient fabrication of BNNSs remains a challenge due to the low yield and complex fabrication process, which limits their further wide applications in polymer-based dielectrics. In this study, effectively stripped thin layer BNNS were prepared with high yield by urea-assisted ball milling combined with ultrasonic thermal stripping. The results showed that BNNS not only achieved efficient stripping and good dispersion in liquid solutions, but also effectively increased the energy storage capacity of the PVDF-based composites, with the highest U-e (7.5 J cm(-3) at 450 MV m(-1)) achieved in 8 wt% BNNS/PVDF composites.

卷号:12

期号:4

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