In this study, the halloysite nanotubes/polypyrrole/Fe₃O₄ (HPF) nanocomposites were synthesized, and their microwave absorption properties were investigated. Fe₃O₄ nanoparticles were synthesized by the hydrothermal method. By adding halloysite nanotubes (HNTs) to Fe₃O₄ nanoparticles and using the polypyrrole (PPy) as a conductive polymer, the in-situ polymerization process on the surface of HNTs and Fe₃O₄ nanoparticles was performed. The characteristic peaks of PPy and HNTs in Fourier transform infrared (FTIR) spectra confirmed the well-synthetized nanocomposites processes. Field emission scanning electron microscopy (FE-SEM) images illustrated the morphology and uniform structure of nanocomposites. The HPF1 (1 mL PPy) and the HPF2 ((2 mL PPy) nanocomposites exhibit a saturated magnetization of 26.22 emu/g and 13.94 emu/g, respectively. The microwave adsorbents were prepared by adding 20 wt% of synthesized nanocomposites to the resin. The complex permittivity and permeability parameters of adsorbents were investigated in the range of 8–12 GHz. The minimum reflection loss (RL) was − 31.18 dB at 10.58 GHz for HPF1 nanocomposites corresponding for a thickness of 3 mm. The results indicate that the HNTs as an additive can improve the adsorption properties of PPy/Fe₃O₄ nanocomposites.

本研究合成了埃洛石纳米管/聚吡咯/Fe ₃ O ₄ (HPF)纳米复合材料，并对其微波吸收性能进行了研究。Fe ₃ O ₄纳米粒子采用水热法合成。通过将埃洛石纳米管（HNTs）添加到Fe ₃ O ₄纳米颗粒中，并使用聚吡咯（PPy）作为导电聚合物，在HNTs和Fe ₃ O _{4表面进行原位聚合过程}进行了纳米粒子。傅里叶变换红外 (FTIR) 光谱中 PPy 和 HNT 的特征峰证实了良好合成的纳米复合材料过程。场发射扫描电子显微镜 (FE-SEM) 图像说明了纳米复合材料的形态和均匀结构。HPF1 (1 mL PPy) 和 HPF2 ((2 mL PPy) 纳米复合材料的饱和磁化强度分别为 26.22 emu/g 和 13.94 emu/g。通过向树脂中添加 20 wt% 的合成纳米复合材料制备微波吸附剂. 吸附剂的复介电常数和磁导率参数在 8–12 GHz 范围内进行了研究。对于对应于 3 mm 厚度的 HPF1 纳米复合材料，在 10.58 GHz 时最小反射损耗 (RL) 为 - 31.18 dB。₃ O ₄纳米复合材料。