POLYMER BLENDS OF ELECTROSTRICTIVE TERPOLYMER WITH OTHER POLYMERS

摘要

Polymer blends having improved electromechanical responses and mechanical properties for use in electromechanical application are disclosed. In particular, polymer blend including at least one electrostrictive terpolymer, e.g., poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene) (P(VDF-TrFE-CFE)) or a derivative thereof, and at least one fluoropolymer, e.g., PVDF or derivative thereof such as PVD-TrFE are disclosed. The polymer blends advantageously have a transverse strain, i.e., a strain perpendicular to the applied electric field direction, that is about 1.5 % or higher (as measured at 100 MV/m) while also having an elastic modulus of no less than about 400 MPa (as measured at 30 °C and 1 Hz by dynamic mechanical analyzer).