Polymer composites with enhanced wave absorption properties based on modified graphite and polyvinylidene fluoride

Graphite was modified by a simple method, and the structure of the graphite intercalated composite (GIC) was investigated by SEM, XRD and XPS. The increased absorption properties at frequencies from 2 to 18 GHz were studied in detail. The results show that the PVDF-GIC composites exhibit strong microwave absorbing intensities (-64.4 dB at 10.59 GHz) with a low filler loading (9.0 wt%), while the composites are still as flexible as pure PVDF.