材料工程2019，Vol.47Issue(3)：63-70,8.DOI:10.11868/j.issn.1001-4381.2018.000280
FeCo/PPy纳米复合材料的合成及其电磁性能调控
Synthesis, modulation of electromagnetic properties of FeCo/PPy nanocomposites
摘要
Abstract
In order to improve the impedance matching and wave absorption, FeCo magnetic nanoparticles with different reaction time were synthesized, and after being modified and in-situ oxidation polymerization, FeCo/PPy nanocomposites were prepared. Results show that the FeCo/PPy composites with FeCo nanoparticles which reaction time is 2 h possess a maximum reflection loss (RL) value of-38.19 dB at 14.45 GHz and 2 mm thickness with an effective absorption bandwidth (RL≤-10 dB) of 5.45 GHz (12.24-17.69 GHz) . The introduction of magnetic nanoparticles with polypyrrole can effectively decrease the complex permittivity and improve the impedance matching, which will reduce the reflection of electromagnetic wave. Meanwhile, the multimechanism of magnetic loss, dielectric loss and interface polarization loss, can prompt the absorption to the electromagnetic wave greatly.关键词
电磁波吸收/磁性纳米颗粒/导电聚合物/纳米复合Key words
electromagnetic wave absorption/magnetic nanoparticle/conductive polymer/nanocomposites分类
通用工业技术引用本文复制引用
闫智然,艾轶博,王祎旋,王煜,何峻,王海成..FeCo/PPy纳米复合材料的合成及其电磁性能调控[J].材料工程,2019,47(3):63-70,8.基金项目
国家自然科学基金项目(51101013,21374009) （51101013,21374009）
