Dielectric and electroactive strain properties of poly(vinylidene fluoride–trifluoroethylene–chlorotrifluoroethylene) terpolymers

Abstract

Articles you may be interested inThe effect of electroactive interlayer on the ferroelectric properties in poly(vinylidene fluoride-trifluoroethylene) copolymer ultrathin films J. Appl. Phys. 112, 074111 (2012); 10.1063/1.4757936 Structural and dielectric properties of poly(vinylidene fluoride)-based terpolymer/copolymer blends developed on aluminum foil J. Appl. Phys. 112, 053505 (2012); 10.1063/1.4748181 Low-voltage-operated top-gate polymer thin-film transistors with high capacitance poly(vinylidene fluoridetrifluoroethylene)/poly(methyl methacrylate) dielectrics Interacting and noninteracting dipole systems in ferroelectric poly(vinylidene fluoride-trifluoroethylene) copolymer J. Appl. Phys. 108, 084109 (2010); 10.1063/1.3499614 Structural evolution and dielectric relaxation behavior of electron-irradiated poly(vinylidene fluoride-trifluoroethylene) 80/20 mol% copolymers

From Vinylidene Fluoride (VDF) to the Applications of VDF-Containing Polymers and Copolymers: Recent Developments and Future Trends

“…Dielectric and electroactive strain behaviors of poly(VDF- ter -CTFE- ter -TrFE) terpolymers containing different CTFE contents from room temperature down to cryogenic temperatures have been investigated by Yu et al Increase in CTFE concentration slightly shifted the temperature where the maximum dielectric constant occurred at lower temperature, whereas high electroactive strain (ca. 1%) was noted for all compositions.…”

Towards Poly(vinylidene fluoride-trifluoroethylene-chlorotrifluoroethylene)-Based Soft Actuators: Films and Electrospun Aligned Nanofiber Mats

“…In this study, P(VDF-TrFE-CTFE) was chosen because of its high electrostrictive strain, i.e., the ability to produce a large field-induced strain when exposed to an external electric field [ 2 , 3 ]. When exposed to an electric field, the field-induced strain S of the material is where Q is the electrostrictive coefficient and the electric polarization, in which D is the electric displacement field, the vacuum permittivity, and E the electric field.…”

“…In the pursuit of designing a linear soft actuator with a high force-to-weight ratio and a stiffening behavior, this study analyzes the poly(vinylidene fluoride-trifluoroethylene-chlorotrifluoroethylene), i.e., the P(VDF-TrFE-CTFE), a relaxor ferroelectric polymer. The P(VDF-TrFE-CTFE) has been chosen because it shows a high electrostrictive strain, i.e., the ability to produce a large field-induced strain when exposed to an external electric field [ 2 , 3 ]. The P(VDF-TrFE-CTFE) is a terpolymer of the ferroelectric polymer polyvinylidene fluoride (PVDF) [ 4 ], in which the introduction of TrFE and CTFE facilitates the flipping of the dipoles [ 5 ] and the formation of trans-conformation, respectively [ 6 ].…”

Comparison of electroactive polymers for energy scavenging applications

“…They exhibit large deformations under a high electric field, low hysteresis losses and high electrostrictive coefficients. A traditional ferroelectric polymer can be changed into a relaxor ferroelectric polymer by irradiation for the copolymer P(VDF-TrFE) [38][39][40][41] or by adding a third component, CTFE, for the terpolymer P(VDF-TrFE-CTFE) [42][43][44][45]. With Liu's methods, the terpolymer is able to scavenge up to 0.9 J cm −3 under a maximal electric field of 150 MV m −1 .…”