Polysulfide polyurethane-urea(PSPU)-based self-healing dielectric composites with poly-dopamine and KH550 chemically modified carbon nanotubes

Enhancement of dielectric properties of acrylic resin elastomer‐based composites with SiO2 loaded carbon nanotubes

“…This is because after the filler volume fraction reaches this interval, the composite film will complete the transition from insulator to conductor. 23 Then, as the filler volume fraction increases, the conductivity of the composite film begins to increase slowly again. Fitting the conductivity data according to Equations ( 1) and ( 2) reveals that the f c of CNT/ARE and SiO 2 @CNT/ARE composite films are 2.60 and 3.41 vol%, respectively.…”

“…It can be visualized that the conductivity of CNT/ARE and SiO 2 @CNT/ARE composite films increases slowly at low filler content, however, the conductivity of both composite films grows exponentially when the filler content exceeded the percolation threshold. This is because after the filler volume fraction reaches this interval, the composite film will complete the transition from insulator to conductor 23 . Then, as the filler volume fraction increases, the conductivity of the composite film begins to increase slowly again.…”

Polysulfide polyurethane–urea-based dielectric composites with CeO2-loaded MXene exhibiting high self-healing efficiency

“…This phenomenon, shown in Fig. 4h, can be explained according to the Cole–Cole model with the following equation: 43 where ε s is the static dielectric constant, ε ∞ is the dielectric constant at frequencies close to infinity. τ is the relaxation time, whose expression is .…”

“…This phenomenon, shown in Fig. 4h, can be explained according to the Cole-Cole model with the following equation: 43 e ¼ e 0 À ie 00 ¼ e 1 þ e s À e 1 1 þ ðiotÞ 1Àa…”