NR composites with embedded ferroelectric ceramic nano-particles presented an unusual dielectric relaxation behaviour
compared to common thermoplastic or thermostable polymers. Therefore, a decrease of permittivity and dissipation factor
was found with increase BaTiO3 content. Moreover, the amorphous phase has better insulating properties when the
nanoparticles are well dispersed as proved by the EIS and breakdown assays performed at room temperature