Abstract Flexible nanocomposites with high permittivity (er), low loss and high voltage breakdown strength (Eb) are highly desired in microelectronics and electric power systems etc. In order to obtain high energy storage performance, high values of er and Eb should be achieved simultaneously. Balance between the er and Eb has been challenged by their inverse behavior relating to filler content. In this study, by constructing a three dimensional-network of high-er BaTiO3 (3D BT) ceramic fillers in the polyvinylidene fluoride (PVDF)-epoxy blend polymer matrix, an ultra-high permittivity of 292 and a low loss of less than 0.1 were obtained with 31 vol% inorganic fillers. Meanwhile, the energy storage density was enhanced by more than 3 times in comparison with the PVDF-epoxy polymer matrix.

中文翻译：

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含有无机 3D 网络的共混聚合物基复合材料的介电和储能性能显着增强

摘要 具有高介电常数 (er)、低损耗和高电压击穿强度 (Eb) 的柔性纳米复合材料在微电子和电力系统等领域备受青睐。为了获得高储能性能，需要同时实现高值 er 和 Eb。 . er 和 Eb 之间的平衡受到与填料含量相关的逆向行为的挑战。在这项研究中，通过在聚偏二氟乙烯 (PVDF)-环氧共混聚合物基体中构建更高 er BaTiO3 (3D BT) 陶瓷填料的三维网络，具有 292 的超高介电常数和小于 0.1 的低损耗用 31 vol% 的无机填料获得。同时，与PVDF-环氧聚合物基体相比，储能密度提高了3倍以上。