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FUNCTIONALIZED GRAPHENE-BaTiO_3/FERROELECTRIC POLYMER NANOCOMPOSITES WITH EXCELLENT DIELECTRIC PROPERTIES

机译:具有优异介电性能的官能化石墨烯-BATIO_3 /铁电聚合物纳米复合材料

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Over past decades, tremendous researchers have paid their attention to developing dielectric materials with high permittivity (high k) which are very important for the fabrication of high energy density capacitors. [1] Polymers, such as polyethylene (PE), polypropylene (PP), and poly(vinylene fluoride) (PVDF) have long been used as dielectric media for flexible capacitors due to their high electrical breakdown strength, light weight, low cost, and processing flexibility. However, the relatively low dielectric constant (ε) severely limits the application of polymers as dielectrics for modern high energy density capacitors. Thus, it is natural to design and fabricate high k composites by using polymers as matrix and species of high dielectric constant as fillers.
机译:在过去的几十年中,巨大的研究人员对开发具有高介电常数(高k)的介电材料,这对于制造高能密度电容器非常重要。 [1]聚合物,例如聚乙烯(PE),聚丙烯(PP)和聚(氟乙烯)(PVDF),长期被用作柔性电容器的介电介质,因为它们的高电击穿强度,重量轻,成本低,并加工灵活性。然而,相对低的介电常数(ε)严重限制了聚合物的应用作为现代高能量密度电容器的电介质。因此,通过使用聚合物作为基质和高介电常数作为填料的基质来设计和制造高k复合材料是自然的。

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