Conductive carbon black/magnetite hybrid fillers in microwave absorbing composites based on natural rubber

The study presents the microwave properties of natural rubber based composites in the 1–12 GHz frequency range as determined by the conductive carbon black/magnetite hybrid fillers obtained by impregnation at different ratios between carbon and magnetite phase. It has been established that, the changes in the investigated properties exhibit a resonance character in the 3–9 GHz range and are caused by alternations both of frequency and the ratio...