Preparation and Properties of Ferrite/Graphene Composite Absorbing Composites
In order to prepare broadband and high-efficiency flexible fabrics,ferrite(Fe3O4)/graphene(rGO)absorbing particles were prepared by thermal decomposition method,and Fe3O4/rGO nanoparticles were loaded onto cotton fabrics by double immersion and double rolling to obtain flexible fabrics with excellent absorbing properties.Scanning electron microscopy and infrared spectroscopy were used to characterize the microstructure and composition of flexible fabrics,and the electromagnetic parameters of fabrics were tested and analyzed.The results show that when the load-to-mass ratio of Fe3O4/rGO is 15∶1,the absorption effect of flexible fabric is the best.When the thickness of the composite absorber is 4 mm,the minimum reflection loss at 11.3 GHz reaches-18.4 dB,and the effective absorption bandwidth ranges from 10.63～11.72 GHz.This paper provides a reference for the design and development of high-efficiency and broadband flexible absorbers.
国家科技期刊平台
NSTL
万方数据
