等离子体快速制备中间相炭微球磁性复合材料及其吸波性能研究  

Rapid preparation of mesophase carbon microbead magnetic composite materials by plasma and its electromagnetic wave absorption properties

作　　者：吴延龙 白一鸣 杨志懋[2] 孔春才[2] WU Yan-long;BAI Yi-ming;YANG Zhi-mao;KONG Chun-cai(China Academy of Space Technology,Beijing 100094,China;School of Physics,Xi’an Jiaotong University,Xi’an 710049,China)

机构地区：[1]中国空间技术研究院,北京100094 [2]西安交通大学物理学院,陕西西安710049

出　　处：《应用化工》2023年第7期1954-1961,共8页Applied Chemical Industry

基　　金：国家自然科学基金重大研究计划(92266107)。

摘　　要：利用高温等离子体一步快速制备了中间相炭微球(MCMB)负载的磁性纳米颗粒复合材料,磁性纳米颗粒生在MCMB表面,在6.54 GHz,厚度为3.5 mm时,该复合材料最佳反射损耗值可达-38.42 dB,当厚度降至2.5 mm时,材料最佳反射损耗值为-29.4 dB,有效吸收带宽拓宽为3.9 GHz(8.4~12.3 GHz)。结果表明,通过等离子快速高效制备纳米复合吸波材料具备可行性。A high-temperature plasma was used to rapidly prepare magnetic nanocomposites supported by mesophase carbon microbead(MCMB).The magnetic nanoparticles were grown on the surface of the MCMB.At 6.54 GHz,when the thickness is 3.5 mm,the best reflection loss value of the nanocomposite can reach-38.42 dB.When the thickness is reduced to 2.5 mm,the best reflection loss value of the material is-29.4 dB,and the effective absorption bandwidth is widened to 3.9 GHz(8.4~12.3 GHz).The results show that the rapid and efficient preparation of nanocomposites with excellent electromagnetic wave absorption properties by plasma is feasible.

关 键 词：等离子体 中间相炭微球 磁性纳米颗粒 电磁波吸收 

分 类 号：TQ58[化学工程—精细化工] TB34[一般工业技术—材料科学与工程]