Preparation and properties analysis of carbonyl iron-graphite coated polyester absorbing materials
This paper,polyurethane was used as adhesive,carbonyl iron and conductive graphite were used as absorbing agent,ordinary polyester cloth was used as substrate,and DMF additive was added to prepare microwave absorbing coating.A series of composite microwave absorbing coatings were prepared by changing themass percentage of the absorbent and the structure of the coating.The experimental results show that the peak value and absorption bandwidth of the double-layer composite coating are better than that of the single-layer coating,and the peak value of the double-layer composite absorbing material can reach-13 dB.For the double-layer composite absorbing coating,The maximum loss value and absorption bandwidth of the material are larger than those of the graphite coating at the bottom of the coating.
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