Fabrication and microwave absorption performances of hollow-structure Fe3O4/PANI microspheres
Fabrication and microwave absorption performances of hollow-structure Fe3O4/PANI microspheres
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空心结构Fe3O4/PANI微球的制备及其吸波性能
DOI：
10.1007/s10854-017-6664-5
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发表时间：
2017-07-01
影响因子：
2.8
通讯作者：
Du, Xueyan
中科院分区：
文献类型：
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作者：
Hou, Jieqiong;Zhang, Long;Du, Xueyan
通过模板法控制苯胺与聚苯乙烯（PS）的质量比制备了聚苯胺（PANI）空心微球，并将其与Fe 3 O 4磁性粒子共混制备了Fe 3 O 4/PANI复合微球。研究了苯胺/聚苯乙烯质量比对Fe 3 O 4/PANI微球吸波性能的影响。结果发现，微球的最小反射损耗（RLmin）值分别为-14.06、-22.34和-24.3 dB，对应于苯胺/PS的质量比为1：1.5、1：3和1：6。此外，当苯胺/聚苯乙烯质量比为1：6，厚度为1.5 mm和2.0 mm时，Fe 3 O 4/PANI微球在-10dB以下的吸收带宽分别为2.48 GHz（15.52 ~ 18 GHz）和4.64 GHz（11.04-15.68 GHz），表明Fe 3 O 4/PANI微球在X（8-12 GHz）和Ku（12-18 GHz）波段具有潜在的吸波性能。
The hollow polyaniline (PANI) microspheres were prepared by controlling the mass ratio of the aniline to polystyrene (PS) via a template method, and Fe3O4/PANI composite microspheres have been fabricated by blending the hollow PANI microspheres with Fe3O4magnetic particles. The effects of the mass ratio of aniline/PS on the microwave absorption performances of Fe3O4/PANI microspheres were investigated. It was found that the value of minimum reflection loss (RLmin) of the microspheres were respectively −14.06, −22.34 and −24.3 dB, corresponding to the mass ratio of aniline/PS of 1:1.5, 1:3, and 1:6. In addition, when the mass ratio of aniline/PS was 1:6, with the thickness of 1.5 and 2.0 mm, the bandwidth below −10dB were respectively 2.48 GHz (15.52–18 GHz) and 4.64 GHz (11.04–15.68 GHz), indicating that the Fe3O4/PANI microspheres could be a potential electromagnetic wave absorbing material in X (8–12 GHz) and Ku (12–18 GHz) bands.