聚苯胺/Fe_3O_4复合吸波材料的制备及表征  

Preparation and microwave absorbing property of polyaniline /Fe_3O_4 composite

作　　者：颜海燕[1] 寇开昌[2] 

机构地区：[1]西安工业大学材料与化工学院,陕西西安710032 [2]西北工业大学理学院化工系,陕西西安710072

出　　处：《热固性树脂》2008年第4期16-18,共3页Thermosetting Resin

基　　金：西安工业大学校长基金(XAGDXJJ0610)

摘　　要：用原位聚合法合成了聚苯胺/Fe3O4(PANI/Fe3O4)复合材料,合成产物为以Fe3O4为核,聚苯胺为壳的球状微粒。采用FT-IR、XRD、XPS、TEM等方法对PANI/Fe3O4进行了结构表征。以矩形波导法测定了PANI/Fe3O4在9.3GHz微波环境中的性能。结果表明,改变Fe3O4含量可以调节复合材料的电磁参数。当Fe3O4质量分数为10%时,复合材料介电损耗tgδε=1.87、磁损耗tgδμ=0.035,达到最大微波损耗7.641(-dB),具有良好的吸波性能。Polyaniline/Fe3O4 composites（PANI/Fe3O4 ） were prepared by in- situ polymerization and the products were spherical particles with Fe3O4 core and polyaniline shell. The FTIR, XRD, XPS, TEM were used to characterized the structure. The properties of polyaniline/Fe3O4 at the frequency of 9.3 GHz microwave were tested by wave - guide technique. The result showed that the electromagnetic parameters could be changed by the content of Fe3O4. When the content of Fe3O4 reached 10%, the dielectric loss tg δε= 1.87, the magnetic loss tg δμ= 0.035 and the complex permeability microwave decay value reached the maximum 7.641（ - dB）. The complex had good microwave absorbing properties.

关 键 词：聚苯胺 氧化铁(Fe3O4) 复合材料 微波吸收 

分 类 号：TB332[一般工业技术—材料科学与工程]