POLYMER BLENDS OF ELECTROSTRICTIVE TERPOLYMER WITH OTHER POLYMERS
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United States of America Patent
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Issued Date -
Oct 8, 2015
app pub date -
Apr 22, 2015
filing date -
Jul 15, 2009
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Abandoned
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Abstract
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).
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