Polyaniline@carbon nanotube (PAni@CNT) hybrid with electrical conductivity of 5.2 S/cm was successfully prepared by inverted emulsion polymerization of aniline in the presence of CNT dispersed in toluene assisted by cetyl-trimethyl ammonium bromide (CTAB). Conductive composites based on poly (vinylidene fluoride-co-hexafluoropropylene) (PVDFH) loaded with different amounts of PAni and PAni@CNT were prepared by dry-blending the powders in a ball-mill followed by hot compression molding. This procedure resulted in a segregated structure of the fillers, as indicated by scanning electron microscopy (SEM). The composite with 10 wt% of PAni@CNT (9.5: 0.5 wt%) hybrid exhibited electrical conductivity near 10⁻³ S/m and outstanding electromagnetic wave (EMW) attenuation. Indeed, reflection loss (RL) of − 34 dB (more than 99.9% EMW attenuation) at 11.7 GHz and effective absorption bandwidth (EAB) frequency with RL < −10 dB (more than 90% EMW attenuation) corresponding to 7.3 GHz were observed for this composition with thickness of 3 mm. A comparative analysis of measured and calculated RL was conducted. Considering the simple and cost effective preparation procedure, these composites loaded with 5 wt% and 10 wt% of the hybrid material are promising alternatives for developing efficient microwave absorbing material for both military and civil applications.

在十六烷基三甲基溴化铵 (CTAB) 辅助下，在甲苯中分散的 CNT 存在下，通过苯胺的反相乳液聚合，成功制备了电导率为 5.2 S/cm 的聚苯胺@碳纳米管 (PAni@CNT) 杂化物。通过将粉末在球磨机中干混，然后进行热压成型，制备了基于负载不同量 PAni 和 PAni@CNT 的聚（偏二氟乙烯-共聚六氟丙烯）（PVDFH）的导电复合材料。如扫描电子显微镜 (SEM) 所示，该过程导致填料的分离结构。^{具有 10 wt% PAni@CNT (9.5: 0.5 wt%) 杂化的复合材料表现出接近 10 -3}的电导率S/m 和出色的电磁波 (EMW) 衰减。实际上，观察到在 11.7 GHz 的反射损耗 (RL) 为 − 34 dB（超过 99.9% EMW 衰减）和对应于 7.3 GHz 的 RL < -10 dB（超过 90% EMW 衰减）的有效吸收带宽 (EAB) 频率对于这种厚度为 3 毫米的组合物。对测量和计算的 RL 进行了比较分析。考虑到简单且具有成本效益的制备程序，这些负载有 5 wt% 和 10 wt% 混合材料的复合材料是开发用于军事和民用的高效微波吸收材料的有希望的替代品。