钡铁氧体/石墨烯/二氧化硅柔性复合材料吸波性能的研究.

With the rapid development of the information age, a variety of electronic products have been widely used in our daily and working life. The electromagnetic pollution has become an increasingly serious problem. Absorbing materials with "thin, light, wide, strong" have been widely concerned. Tn this paper, BaF. 0押： graphene and Si()< are mixed by mechanical mixing method to prepare multi--absorbent composite powders. Using waterborne polyurethane as binder, polyamide fabric with multi-absorbent composite coating is prepared by tape casting. The structure, morphology, mechanical and wave absorption properties of the flexible composites are analyzed. The results show that when the absorber component is ().4(BaFei2 O1f)-Graphene)-().6Si()2 and the thickness of the absorbing coatings is 1.2 mm, the sample shows the best micro wave absorption performance with the minimum reflection loss of -14.58 dB, and the bandwidth with reflection loss below -1 0 dB of 0.94 GHz (1 2.91-1 3.58 GHz). Tt has the excellent performance of thin coating, high absorption intensity, wide absorption band and light weight. [ABSTRACT FROM AUTHOR]