新型炭材料（中英文）2026，Vol.41Issue(3)：583-596,14.DOI:10.1016/S1872-5805(26)61082-7
自支撑碳纳米管巴基纸/Fe3O4/聚苯胺复合薄膜的制备及其电磁屏蔽性能
Synthesis of free-standing carbon nanotube buckypaper films decor-ated with Fe3O4 nanoparticles and polyaniline as highly effective elec-tromagnetic shielding materials
胡云平 1巩岱轩 2曲美洁 2唐萍 2宾月珍2
作者信息
- 1. 中核四0四有限公司,甘肃 嘉峪关 735100||大连理工大学 化工学院高分子材料系,辽宁 大连 116024
- 2. 大连理工大学 化工学院高分子材料系,辽宁 大连 116024
- 折叠
摘要
Abstract
A balance between electrical and magnetic properties is critical for electromagnetic shielding materi-als to achieve excellent electromagnetic interference(EMI)shielding and attenuation effectiveness across a broad frequency range.We have prepared free-standing buckypaper films(BPFP)decorated with Fe3O4 particles and polyaniline(PANI)by a simple two-step method to meet this requirement.First,buckypaper films decorated with Fe3O4(BPF)were synthesized by the coprecipitation of Fe2+/Fe3+ions on buckypaper(BP)which was then coated with a polyaniline layer by the in situ polymeriza-tion of aniline monomers.Magnetic characterization re-vealed that the BPF and BPFP films had saturation mag-netization(Ms)values of 14.3 emu g-1 and 13.0 emu g-1,respectively,confirming retention of the magnetic phase.The addition of Fe3O4 nanoparticles and polyaniline to BP(30 μm)increased both the magnetic and dielectric losses due to the increased in-terfacial polarizations and anisotropy energy.41 μm-thick BPF and BPFP films had an absorption-dominated shielding effect-iveness of 35.1 dB and 36.4 dB,respectively,across the 5.85-18 GHz frequency band.These values are respectively 12.9%and 17.0%greater than that of pristine BP,highlighting the positive effect of Fe3O4-PANI heterostructures on electromagnetic wave dissipation.These films also had the tensile strength,flexibility,and lightness of BP,demonstrating exceptional promise for next-generation electromagnetic shielding materials.关键词
巴基纸/Fe3O4 纳米颗粒/原位聚合/聚苯胺/电磁干扰Key words
Buckypaper/Fe3O4 nanoparticles/In situ polymerization/Polyaniline/Electromagnetic interference分类
化学化工引用本文复制引用
胡云平,巩岱轩,曲美洁,唐萍,宾月珍..自支撑碳纳米管巴基纸/Fe3O4/聚苯胺复合薄膜的制备及其电磁屏蔽性能[J].新型炭材料（中英文）,2026,41(3):583-596,14.
