Simultaneously improved dielectric and mechanical properties of silicone elastomer by designing a dual crosslinking network

Abstract

A homogenous silicone dielectric elastomer with simultaneously improved dielectric and mechanical properties is synthesized by designing a dual crosslinking network.

Synthesis of solvent-free processable and on-demand cross-linkable dielectric elastomers for actuators

“…56 Unfortunately, the lifetime tests of actuators constructed from novel dielectric elastomers are rare, 44,[57][58][59][60][61] for most materials such investigations were not reported. [62][63][64][65][66] Furthermore, investigations on how high dielectric permittivity materials behave in different humidity environment are also needed.…”

Simultaneous enhancement of dielectric and mechanical properties of high‐density polyethylene/nitrile rubber/multiwalled carbon nanotube composites prepared by dynamic vulcanization

“…6,7 Chemical crosslinking is also a feasible method to provide deep traps for electrons. 8,9 Recently, Guo and colleagues presented a novel approach to achieve high dielectric permittivity, low dielectric loss and high charging-discharging energy efficiency simultaneously by a combination of crosslinking and dispersion of coated BaTiO 3.…”

“…10 Sun et al designed a dual crosslinking network to enhance the dielectric and mechanical properties of silicone elastomer. 9 The crosslinking points limit polymer chain mobility in the amorphous phase, providing lower dielectric loss and lower conductivity. However, these crosslinked dielectric composites cannot be melted or remolded like thermoplastics, thus restricting their practical application.…”

“…Tremendous efforts have been made; most of the reported studies focus on either the uniform dispersion of nanoparticles by surface modification or the formation a dense network‐like structure to hinder electrochemical failure by dispersing 2D nanosheets into the polymer matrix 6,7 . Chemical crosslinking is also a feasible method to provide deep traps for electrons 8,9 . Recently, Guo and colleagues presented a novel approach to achieve high dielectric permittivity, low dielectric loss and high charging–discharging energy efficiency simultaneously by a combination of crosslinking and dispersion of coated BaTiO 3.…”

“…10 Sun et al . designed a dual crosslinking network to enhance the dielectric and mechanical properties of silicone elastomer 9 . The crosslinking points limit polymer chain mobility in the amorphous phase, providing lower dielectric loss and lower conductivity.…”