Abstract
The development of advanced dielectric materials with high electric energy densities at elevated temperatures is of crucial importance in modern electronics and electric power systems. Herein, poly(methyl methacrylate) (PMMA)/boron nitride nanosheets (BNNS) nanocomposites for high temperature applications were prepared using a facile solution cast method. It was found the incorporation of BNNS into PMMA increased the thermal conductivity and enhanced the capacitive properties of the nanocomposites. A discharged energy density that is over 210% that of the state-of-the-art biaxially oriented polypropylene (BOPP) and a charge-discharge efficiency of more than 97% have been achieved in PMMA/BNNS under an electric field of 200 MV/m at 70 °C. The incorporation of uniformly dispersed nanosheets into polymer matrix as charge-blocking barrier paves a way to significant reduction of conduction loss in high temperature dielectrics.
Original language | English (US) |
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Pages (from-to) | 139-144 |
Number of pages | 6 |
Journal | Composites Science and Technology |
Volume | 142 |
DOIs | |
State | Published - Apr 12 2017 |
All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- General Engineering