电介质
纳米复合材料
电容器
材料科学
高-κ电介质
复合材料
常量(计算机编程)
相(物质)
碳纳米管
介电损耗
介电常数
电容
介电谱
聚合物纳米复合材料
光电子学
电气工程
物理
计算机科学
工程类
电压
量子力学
程序设计语言
作者
Haiyun Wang,Qiong Fu,Jiangqi Luo,Dong Mei Zhao,Laihui Luo,Weiping Li
摘要
To get the dielectric material with a high dielectric constant and low dielectric loss, the modified multiwalled carbon nanotube (MWNT-S) and ferroferric oxide (Fe3O4) particles were embedded into polyvinylidene fluoride (PVDF) to fabricate the Fe3O4/MWNT-S/PVDF ternary composites. The maximum dielectric constant of these composites can be up to 3490 at a very low filler fraction, and dielectric loss can be suppressed below 0.5. The small amount of the second filler (Fe3O4) can accelerate the formation of a percolation conductive network and improve the interfacial polarization. Therefore, the excellent dielectric properties can be achieved at low loading of fillers.
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