Surface modification-based three-phase nanocomposites with low percolation threshold for optimized dielectric constant and loss

Factors affecting the piezoelectric performance of ceramic-polymer composites: A comprehensive review

“…In order to further enhance the dielectric properties of biphasic composites, several approaches based on including a third phase to the composite have been exploited [133], [134] such as the addition of conductive particles to the two-phase piezoelectric system [135]. Insight from literature highlighted that the addition of conductive carbon black particles to a PZT-PVDF composite resulted in an enhanced d33 of 42pC/N (at a composition of 0.7PZT/0.3PVDF and 0.4% carbon black) at 1kHz when compared to a d33 of 23pC/N for the same system but without carbon black inclusions [136].…”

Achieving Enhanced Interfacial Interaction and High Dielectric Properties in PVDF Composite Film Containing Polyaniline-Derived N-Doped Carbon

“…More importantly, due to the synergistic action of strong dipole and hydrogen bond in the system, the enhanced interfacial interaction between PVDF and PyEG was formed, which promoted the transformation of PVDF from the α to β phase. In addition, a small amount of carbon nanomaterials, such as carbon nanotubes, graphene nanosheets, etc., can also achieve the transformation of PVDF from the α to β phase and further optimize the dielectric properties of composite systems. , The above studies show that the addition of fillers can effectively induce the matrix to form β-PVDF, but for better results, the chemical treatment and modification of fillers are generally required to increase the compatibility and interfacial interactions between fillers and matrix, which also increases the cost and difficulty of the preparation process to some extent.…”

Enhanced dielectric performance of polydimethylsiloxane‐based ternary composites films via tailored hydrogen bonds between carbon nanotube and barium titanate as modified fillers

“…The co‐existence of the inorganic ceramic and conductive fillers simultaneously contributed to the relatively higher dielectric constant and lower loss. [ 13 ] Nevertheless, this method suffers from some distinct disadvantages involving harsh preparation conditions, costly equipment, cumbersome and time‐consuming steps. In contrast, blending inorganic ceramic and conductive fillers facilitated to realize possible commercialize, which has obvious benefits for large‐scale production compared with designing ceramic‐conductive hybrid particles.…”

“…At the frequency of 100 Hz, a high dielectric constant of 109 and low loss of 0.06 are obtained for the three‐phase nanocomposites with only 0.41 vol% mCNTs and 2.8 vol% mBTs, respectively. [ 13 ] Feng et al prepared a novel poly (vinylidene fluoride) (PVDF)/Fe 2 TiO 5 (FTO)/graphite ternary composite films via solution casting technology. The ternary composite bearing 20 wt% FTO and 0.1 wt% graphite showed a high permittivity of 45 at 100 Hz, a low dielectric loss of 0.15 at 100 Hz.…”