Research on the absorbing properties of absorbing plates based on the hollow-sphere structure

The absorption properties of carbon-coated EPS have been studied.The discussion of the absorption mechanism indicated that the resonant loss and scattering loss is significant in this hollow sphere structure absorber.The aborbing intensity and resonant frequency of absorber can be controlled by tuning conductive coating thickness and spehere radius.The absorber was applied to cement-based absorber planes,and the result showed that the absorption properties of the composites has greatly improved,especially in lower frequency.Also,the density of the material was reduced.Therefore,the carbon-coated EPS is an ligheweight and efficient absorbing filler and has great future for development.