双酚F型环氧树脂/聚噻吩复合吸波材料研究  

Study on the bisphenol F epoxy/polythiophene composite microwave absorbing materials

作　　者：李金娥[1] LI Jin-e(Shihezi Vocational Technical College,Shihezi 832000,China)

机构地区：[1]新疆石河子职业技术学院,新疆石河子832000

出　　处：《热固性树脂》2021年第3期21-24,共4页Thermosetting Resin

摘　　要：以双酚F型环氧树脂为基质,聚噻吩为吸波剂,采用压片机制备了复合吸波材料。通过扫描电镜、X射线衍射仪分析以及饱和磁强度、介电常数和磁导率以及吸波反射率测定研究了复合吸波材料的微观形貌和结构组成,聚噻吩用量对吸波材料饱和磁强度的影响以及材料的电磁和吸波性能。结果表明,试样内部缺陷较少,粒径大小均一,材料内部组成结构与预期相符。试样饱和磁强度随聚噻吩用量的增大而增大。介电常数随电磁波频率的增大逐渐减小。电磁波频率为2~11 GHz时磁导率随着频率的增大而减小,11~18 Ghz时磁导率逐渐从0增大至0.4。厚度为3.8 mm的试样吸波性能最佳,吸波反射率峰值可达-35.0 dB,吸收率超过99.0%。The composite microwave absorbing materials were prepared by tablet press method using bisphenol F type epoxy resin as the matrix and polythiophene as the microwave absorber. The microscopic morphology and structure composition of the materials, effect of polythiophene amount on the saturation magnetic intensity and the electromagnetic properties and absorbing properties of materials were investigated by scanning electron microscopy, X-ray diffractometer analysis and tests of dielectric constant, permeability, and absorption reflectivity. The results showed that the sample had fewer internal defects, uniform particle size, and the internal composition of the material was in line with expectations. The saturation magnetic intensity of the sample was increased with the increase of polythiophene amount The dielectric constant was gradually decreased with the increase of electromagnetic waves frequency. When the electromagnetic wave frequency was 2 ~11 GHz, the magnetic permeability was decreased with the increase of frequency, and the magnetic permeability was gradually increased from 0 to 0.4 when the frequency was 11~18 GHz. The sample with a thickness of 3.8 mm had the best absorption performance. The peak absorption reflectivity could reach-35.0 dB and the absorption rate exceeded 99.0%.

关 键 词：双酚F型环氧树脂 聚噻吩 羰基多晶铁纤维 复合吸波材料 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]