The Electromagnetic Interference (EMI) shielding characteristics of PVC based nanocomposites were studied when reinforced with newly developed Thermally Reduced Graphene Oxide (TRGO) coated with Polyaniline (PANI) nanoparticles. Various techniques were utilized to characterize prepared nanocomposite films like Scanning Electron Microscopy (SEM), direct current (DC) conductivity measurement, impedance analyses, and EMI shielding. EMI shielding was measured in three different regions of the electromagnetic spectrum like the Microwave region (0.1 GHz to 20 GHz), Near InfraRed (NIR), and Ultraviolet region (UV). The coating of PANI over TRGO provides compatibility of nanoparticles with a polymer matrix that leads to enhanced dispersion. EMI shielding was found to be 104 dB for 40 wt% filler content, because of the formation of a mature and dense interconnected network structure of filler. UV and NIR transmittance was also studied and less than 0.5% transmission in the whole UV (200 nm 400 nm) and NIR (700 nm 2500 nm) region was observed.

研究了用新开发的涂有聚苯胺 (PANI) 纳米颗粒的热还原氧化石墨烯 (TRGO) 增强的 PVC 基纳米复合材料的电磁干扰 (EMI) 屏蔽特性。各种技术被用来表征制备的纳米复合薄膜，如扫描电子显微镜 (SEM)、直流 (DC) 电导率测量、阻抗分析和 EMI 屏蔽。EMI 屏蔽在电磁频谱的三个不同区域进行测量，例如微波区域（0.1 GHz 至 20 GHz）、近红外 (NIR) 和紫外区域 (UV)。TRGO 上的 PANI 涂层提供了纳米粒子与聚合物基质的相容性，从而增强了分散性。发现 40 wt% 填料含量的 EMI 屏蔽为 104 dB，因为形成了成熟而致密的填料互联网络结构。还研究了 UV 和 NIR 透射率，观察到整个 UV (200 nm 400 nm) 和 NIR (700 nm 2500 nm) 区域的透射率低于 0.5%。