CONDUCTIVE POLYANILINE / IRON CARBONYL POWDER COMPOSITEMATERIAL FOR WAVE ABSORBING

The conductive polyaniline / iron carbonyl powder composite material was prepared based on conductivepolymer and soft magnetic metals , which have very good characteristics of electromagnetic wave absorbing. The conductive polyaniline / iron carbonyl composite powder was prepared under the volume ratio of 2∶8. The composite of wave absorbing dope , which consists of the composite powder and polyurea , was composed under the volume ratio of 2∶8. It indicates that the wave absorbing property of the composite is better than - 10 dB in the frequency range of 2～12 GHz ,while the conductivity of polyaniline was 10^-2 S/ cm and the average size of iron carbonyl powder is 1～2μm. The analysis demonstrates that excellent wave absorbing materials with wide frequency characteristic , strong wave absorption abilityand programmable frequency range could be developed based on this technology.