Relaxation behavior of sandwich-structured fluorinated graphene/poly(vinylidene fluoride-hexafluoropropylene) composites by dielectric relaxation spectroscopy

Synthesis and characterization of fluorinated poly(aryl ether)s with excellent dielectric properties

“…However, the D f values increased significantly (19.7%-63.4%) at elevated temperature, since the movement of the dipole was more pronounced at elevated temperatures. 37 The abovementioned results indicated the excellent temperature and frequency stability of dielectric properties for the FPAEs.…”

Roles of Al2O3@ZrO2 Particles in Modulating Crystalline Morphology and Electrical Properties of P(VDF-HFP) Nanocomposites

“…The dielectric loss (ε") versus frequency (ε" − f ) of the neat P(VDF-HFP), P(VDF-HFP)/5 vol%-Zr and P(VDF-HFP)/5 vol%-A@Z nanocomposites at various temperatures are shown in Figure 8. It is evident that ε" increases with increasing temperatures due to the accelerated segmental motions at high temperatures [32,33]. In the low-frequency interval, ε" of all nanocomposites decreases linearly with the increasing frequency, which is a typical DC conduction process [32,34].…”

“…It is evident that ε" increases with increasing temperatures due to the accelerated segmental motions at high temperatures [32,33]. In the low-frequency interval, ε" of all nanocomposites decreases linearly with the increasing frequency, which is a typical DC conduction process [32,34]. DC conduction is a result of localized charges jumping to neighboring sites and forming continuous connected networks, allowing the conduction current throughout the entire physical dimensions of the samples [33,35].…”

“…The strong nanoparticles/matrix interfacial barrier effect gives rise to relaxation 2 and decreases the hopping distance of charge carriers. Thus, the charge carriers possess reciprocating movement and can barely induce percolation paths in the nanocomposites [32,33]. The fitted parameters for the samples are listed in Table 2.…”