BaTiO₃/碳纳米纤维网状复合吸波织物的制备及其吸波性能研究

Carbon materials have high specific surface area, high dielectric constant, and excellent thermal and electrical conductivity characteristics, and BaTiO₃ has excellent dielectric properties. The combation of the two materials can effectively prevent and control electromagnetic pollution. In view of this, the BaTiO₃/PAN nanofiber film was prepared by electrospinning method, and then the BaTiO₃/carbon nanofiber mesh composite absorbing fabric was obtained by pre-oxidation and high temperature carbonization treatment. The nanofiber film prepared has the advantages of light, thin and wide bandwidth absorption. The results show that 2.0% BT/C has the best comprehensive performance, the carbon fiber arrangement is dense, the BaTiO₃ crystal form is complete and well dispersed, and the reflection loss at 2.3 mm reaches −61.72 dB, and the maximum absorption bandwidth reaches 8.5 GHz, which has excellent wave absorption.