Trukhanov Alex V, Tishkevich Daria I, Podgornaya Svetlana V, Kaniukov Egor, Darwish Moustafa A, Zubar Tatiana I, Timofeev Andrey V, Trukhanova Ekaterina L, Kostishin Vladimir G, Trukhanov Sergei V
Department of Electronic Materials Technology, National University of Science and Technology MISiS, 119049 Moscow, Russia.
Laboratory of Magnetic Films Physics, Scientific-Practical Materials Research Centre of National Academy of Sciences of Belarus, 220072 Minsk, Belarus.
Nanomaterials (Basel). 2022 Mar 4;12(5):868. doi: 10.3390/nano12050868.
Binary and ternary composites (CM) based on M-type hexaferrite (HF), polymer matrix (PVDF) and carbon nanomaterials (quasi-one-dimensional carbon nanotubes-CNT and quasi-two-dimensional carbon nanoflakes-CNF) were prepared and investigated for establishing the impact of the different nanosized carbon on magnetic and electrodynamic properties. The ratio between HF and PVDF in HF + PVDF composite was fixed (85 wt% HF and 15 wt% PVDF). The concentration of CNT and CNF in CM was fixed (5 wt% from total HF + PVDF weight). The phase composition and microstructural features were investigated using XRD and SEM, respectively. It was observed that CM contains single-phase HF, γ- and β-PVDF and carbon nanomaterials. Thus, we produced composites that consist of mixed different phases (organic insulator matrix-PDVF; functional magnetic fillers-HF and highly electroconductive additives-CNT/CNF) in the required ratio. VSM data demonstrate that the main contribution in main magnetic characteristics belongs to magnetic fillers (HF). The principal difference in magnetic and electrodynamic properties was shown for CNT- and CNF-based composites. That confirms that the shape of nanosized carbon nanomaterials impact on physical properties of the ternary composited-based magnetic fillers in polymer dielectric matrix.
制备了基于M型六方铁氧体（HF）、聚合物基体（PVDF）和碳纳米材料（准一维碳纳米管-CNT和准二维碳纳米片-CNF）的二元和三元复合材料（CM），并对其进行了研究，以确定不同纳米尺寸碳对磁性能和电动力学性能的影响。HF + PVDF复合材料中HF与PVDF的比例固定（85 wt% HF和15 wt% PVDF）。CM中CNT和CNF的浓度固定（占HF + PVDF总重量的5 wt%）。分别使用XRD和SEM研究了相组成和微观结构特征。观察到CM包含单相HF、γ-和β-PVDF以及碳纳米材料。因此，我们制备了由所需比例的混合不同相（有机绝缘体基体-PDVF；功能性磁性填料-HF和高导电性添加剂-CNT/CNF）组成的复合材料。VSM数据表明，主要磁特性的主要贡献来自磁性填料（HF）。基于CNT和CNF的复合材料在磁性能和电动力学性能上表现出主要差异。这证实了纳米尺寸碳纳米材料的形状对聚合物介电基体中基于三元复合材料的磁性填料的物理性能有影响。
