A comprehensive investigation of poly(vinylidene fluoride- trifluoroethylene-chlorofluoroethylene) terpolymer nanocomposites with carbon black for electrostrictive applications

X. Yin (1) , J.-F. Capsal (1) , D. Guyomar (1)

1 LGEF - Laboratoire de Génie Electrique et Ferroélectricité

A percolative poly(vinylidene fluoride-trifluoroethylene- chlorofluoroethylene)/carbon black nanocomposite was fabricated via a simple solution blending method. The dielectric properties, mechanical properties, and breakdown strength were comprehensively investigated for electrostrictive applications. The nanocomposites exhibit excellent mechanical properties and dielectric properties with a dielectric permittivity of 140 and a low dielectric loss of 0.05 at 100Hz. The significant enhancement of dielectric properties was explained by percolation theory, and a percolation threshold of 4.68wt.% was observed. Breakdown strength results were analyzed by Weibull probability, and the observed inevitable decrease of breakdown strength limits its practical applications. © 2014 AIP Publishing LLC.

Mots clés: Blending; Terpolymer nanocomposites; Percolation thresholds; Low dielectric loss; Weibull probability; Nanocomposites; Vinylidene fluoride; Carbon black; Dielectric losses; Electric breakdown; Mechanical properties; Permittivity; Weibull distribution; Breakdown strengths; Chlorofluoroethylene; Dielectric permittivities

Domaines: Sciences de l'ingénieur [physics]

X. Yin, J.-F. Capsal, D. Guyomar. A comprehensive investigation of poly(vinylidene fluoride- trifluoroethylene-chlorofluoroethylene) terpolymer nanocomposites with carbon black for electrostrictive applications. Applied Physics Letters, 2014, 104 (5), ⟨10.1063/1.4864160⟩. ⟨hal-01770277⟩