Composites based on epoxy resin filled with carbon nanotubes (obtained on metal catalysts: cobalt, iron and bimetallic iron -– cobalt) were prepared. The influence of carbon nanotubes on the electrical conductivity and magnetic properties of the obtained composites was examined. Magnetic resonance spectra of the studied samples were dominated by a single, intense, broad and asymmetrical line, which is typical for ferromagnetic resonance (FMR) spectra of strongly interacting iron and cobalt nanoparticles forming agglomerates. The FMR spectra of the modified carbon nanotubes in epoxy were satisfactory fitted by using two components of the Lorentzian lineshape. Magnetization processes had a strong influence on all parameters of FMR spectra. The surface anisotropy is assumed to be the most important contribution to the overall magnetic anisotropy. Electric properties of all composites were improved and composite containing carbon nanotubes obtained on iron – cobalt catalyst exhibited the highest value of electrical conductivity.

制备了基于环氧树脂的，填充有碳纳米管的复合材料（在金属催化剂上获得：钴，铁和双金属铁-钴）。研究了碳纳米管对所得复合材料的电导率和磁性能的影响。研究样品的磁共振波谱主要由一条单一的，强烈的，宽的和不对称的线控制，这对于形成团聚物的强相互作用的铁和钴纳米粒子的铁磁共振（FMR）谱很典型。通过使用洛伦兹线形的两个分量，环氧树脂中的改性碳纳米管的FMR光谱令人满意。磁化过程对FMR谱的所有参数都有很大的影响。假定表面各向异性是对整体磁各向异性的最重要贡献。