Abstract In this work the influence of transition metal coordination compounds was analyzed on the EMI-shielding characteristics and permeability for a paramagnetic probe of polymer composites based on cross-linked polyurethane or incompatible polymer blend (simultaneous semi-IPN based on cross-linked polyurethane and linear poly(methylmethacrylate) filled in situ with conductive and/or magnetic filler. Cross-linked polyurethane/carbon nanotube composites, polymer blend/carbon nanotube composites and polymer blend/carbon nanotube/nickel composites contained of 1.5 wt% and 3 wt% of fillers were modified with Fe(3+)acetylacetonate or Cr(3+)acetylacetonate coordination compounds of different complexing ability. It was shown that opposite effect of Fe (3+) and Cr(3+) complexes on the phase separation in the polymer blend allows regulate the level of the multiple reflection of the electromagnetic wave at the interfacial boundaries as well as protective characteristics and permeability of the investigated systems. The shielding efficiency of chromium-modified composite in the frequency range of (25.8–37.5) GHz is up to 25 dB in the segregated polymer. It has been shown that the effect of conductive nanofillers on polymer loosening is opposite to that of magnetic fillers and is sensitive to the presence in the system of coordination complexing agent.

中文翻译：

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过渡金属配位配合物对聚合物共混物/碳纳米管/镍复合材料EMI屏蔽性能和渗透性的影响

结果表明，Fe (3+) 和 Cr(3+) 配合物对聚合物共混物中相分离的相反作用允许调节界面边界处电磁波的多次反射水平以及保护特性和渗透率被调查的系统。铬改性复合材料在 (25.8–37.5) GHz 频率范围内的屏蔽效率在隔离聚合物中高达 25 dB。研究表明，导电纳米填料对聚合物松散的影响与磁性填料相反，并且对体系中配位络合剂的存在很敏感。铬改性复合材料在 (25.8–37.5) GHz 频率范围内的屏蔽效率在隔离聚合物中高达 25 dB。研究表明，导电纳米填料对聚合物松散的影响与磁性填料相反，并且对体系中配位络合剂的存在很敏感。铬改性复合材料在 (25.8–37.5) GHz 频率范围内的屏蔽效率在隔离聚合物中高达 25 dB。研究表明，导电纳米填料对聚合物松散的影响与磁性填料相反，并且对体系中配位络合剂的存在很敏感。