Enhanced dielectric performance of TPU composites filled with Graphene@poly(dopamine)-Ag core-shell nanoplatelets as fillers

Low‐Voltage Soft Actuators for Interactive Human–Machine Interfaces

“…Therefore, to achieve the coexistence of high dielectric constants, low leakage loss, and higher breakdown strengths, insulating shell structures have been a promising approach where conductive fillers are coated with thin insulating layers. [235,236] The success of this approach was demonstrated by Zhang et al, who introduced 0.9 wt% of core-shell CNT-Al 2 O 3 to PDMS with minimal changes to the elastic modulus (Figure 12b). [237] Inclusions of Al 2 O 3 nanolayer suppressed charge mobility and resisted propagation of electrical tree channels within the material leading to low dielectric losses and high breakdown fields, respectively.…”

Enhanced electromechanical performance of natural rubber dielectric elastomers achieved by in situ synthesis of silver nanoparticles on TiO 2 nanoparticles

“…The cross-linked structure that consisted of the TA-Fe 3+ octahedral complex declined the separation between fillers and matrix, as well as hindered the slippage of NR chains to transfer stress efficiently [39]. However, the 30 wt% TiO 2 @TA-Fe 3+ @Ag/NR composite exhibited the lowest tensile strength due to the increased Ag nanoparticles, which reduced the contact between TiO 2 @TA-Fe 3+ and the NR matrix, thereby resulting in weak interfacial bonding between the filler and matrix [40].…”

Synthesis, Dielectric and Electrical Properties of Silver-Polymer Nanocomposites

“…The new strategy of core-shell graphene@polydopamine-Ag nanoplatelets and corresponding thermoplastic polyurethane (TPU)/Gns@PDA-Ag nanocomposites was reported by Zhu et al [84]. This core shell nanocomposites were demonstrated by using dopamine oxidation polymerization and chemical reduction of silver nitride.…”

“…As a result, TPU-Gns@ PDA-Ag nanocomposites exhibits low dielectric loss and high breakdown field strength compares with TPU-Gns nanocomposites. Thus, the obtained TPU-Gns@ PDA-Ag composite shows a better material for the potential applications in the field of energy storage [84]. Xiao et al [85] have prepared the filler of Ag@TiO 2 core shell nanoparticles by vapor-thermal method and successfully embedded into the P(VDF-HFP) matrix to formed the P(VDF-HFP)-Ag@TiO 2 composites.…”

“…Thus this method provided a way to fabricate BT-Ag hybrid particles into the polymer matrix for desired dielectric performance. Furthermore, the synthesized composites have attractive for potential applications in the high density packing technology and electronic systems [83,84,89]. Similarly, Wageh et al [90] have successfully demonstrated a nano-silver decorated on the surface of the reduced graphene oxide (Ag-RGO) and incorporated into the polar poly (vinylidene fluoride) (PVDF) matrix.…”