Polyvinylchloride (PVC)/nickel oxide (NiO)/tungsten oxide (WO₃) nanocomposite films were prepared via solution casting technique. The crystallinity, morphology, and the analysis of dispersion state of PVC/NiO/WO₃ nanocomposite was carried out using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The dielectric studies of nanocomposite films were investigated and a maximum dielectric constant of 2.3 with dielectric loss (tan δ) of 2.4 was attained. The EMI shielding studies were carried out in the X and Ku-band frequency range (8 GHz-18 GHz). The maximum SE of 15.78 dB in X-band and 12.05 dB in Ku-band was achieved for 75/20/5 compositions of the PVC/NiO/WO₃ nanocomposite.

通过溶液流延技术制备了聚氯乙烯（PVC）/氧化镍（NiO）/氧化钨（WO ₃）纳米复合薄膜。采用X射线衍射（XRD）和扫描电子显微镜（SEM）对PVC / NiO / WO ₃纳米复合材料的结晶度，形貌以及分散状态进行了分析。对纳米复合薄膜的介电性能进行了研究，得出最大介电常数为2.3，介电损耗（tanδ）为2.4。EMI屏蔽研究是在X和Ku频段频率范围（8 GHz-18 GHz）中进行的。对于PVC / NiO / WO ₃纳米复合材料的75/20/5组合物，X波段的最大SE为15.78 dB，Ku波段的最大SE为12.05 dB 。