期刊
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
卷 119, 期 -, 页码 299-309出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2019.02.004
关键词
Polymer-matrix composites (PMCs); Energy materials; Electrical properties; Thermal properties
资金
- National Key RAMP
- D Program of China [2017YFB0406200]
- National Natural Science Foundation of China [51603226]
- Frontier Sciences Key Research Program of the Chinese Academy of Sciences [QYZDY-SSWJSC010]
- Guangdong Provincial Key Laboratory [20148030301014]
- Shenzhen Science AMP
- Technology Program [JSGG 20160229155249762]
- Guangdong province industrial -academic -research cooperation program [2014 B 090901017]
- Guangzhou industrial -academic -research cooperation program [201508010031]
- Science and Technology Planning Project of Guangdong Province, China [2017A010106005]
Dielectric polymer composites consisting of inorganic fillers and polymers have wide applications in high energy density electronic devices. However, development of dielectric polymer composites with enhanced energy storage density and thermal conductivity is desired but challenge. Herein, we report polymer composites consisting of epoxy resin and silver nanoparticle-decorated Al2O3 microspheres (Al2O3-AgNPs), which show enhanced energy storage density and thermal conductivity (1.11 W/m K), at 70 wt% Al2O3-AgNPs. The discharged energy density of Al2O3-AgNPs/epoxy resin composites with 70 wt% hybrid fillers is 4.28 x 10(-3) J cm(-3), while the composites without AgNPs is 3.09 x 10(-3) J cm(-1) at 200 kV cm(-3). The enhanced energy storage density and thermal conductivity are attributed to the enhanced the interfacial polarization and the bridge role of AgNp in facilitating the heat flow across the interfacial boundary, respectively. The results support the potential applications of the Al2O3-AgNPs/epoxy resin composites used as dielectric materials in modern electronics and electric power systems.
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