Abstract A series of silica coated nickel oxide nanoparticles incorporated PVDF nanocomposite films have been successfully prepared by solution casting method and the dielectric properties along with EM shielding hasalso been studied. Higher loading of the well-dispersed NiO@SiO2 nanoparticles inthe PVDF matrix leads to the increment of the effective surface area resulting enhancement of the dielectric and ferroelectric properties of the nanocomposite films. The nanocomposite films successfully block the harmful UV radiations. The sample PSNO15 (for 15 wt% loading of the NiO@SiO2 nanoparticles can almost completely block the UV radiation. As the effective surface area and the interfaces are increased due to the SiO2 coating of the NiO nanoparticles, the electromagnetic waves are reflected and scattered for multiple times from these interfaces. These NiO@SiO2/PVDFnanocomposite films are proposed to be used as UV and EMI shielding technology to get rid of EM hazards of the human civilizations.

中文翻译：

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用于紫外线防护和 EMI 屏蔽应用的轻质、柔性 NiO@SiO2/PVDF 纳米复合薄膜

摘要 采用溶液浇铸法成功制备了一系列二氧化硅包覆氧化镍纳米粒子并掺入PVDF纳米复合薄膜，并对其介电性能和电磁屏蔽进行了研究。在 PVDF 基体中分散良好的 NiO@SiO2 纳米颗粒的负载量增加导致有效表面积的增加，从而增强了纳米复合薄膜的介电和铁电性能。纳米复合薄膜成功地阻挡了有害的紫外线辐射。样品 PSNO15（负载 15 wt% 的 NiO@SiO2 纳米颗粒几乎可以完全阻挡紫外线辐射。由于 NiO 纳米颗粒的 SiO2 涂层增加了有效表面积和界面，电磁波被反射和散射从这些接口多次。