Accession Number:

ADD020211

Title:

High Strain Piezo-Polymer

Descriptive Note:

Patent application, Filed 21 Nov 2003

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Report Date:

2005-07-18

Pagination or Media Count:

24.0

Abstract:

A primary objective of the present invention is to produce an electrostrictive terpolymer such as vinylidene fluoride- trifluoroethylene-chlorofluoroethylene VDF-TrFE-CFE, without utilizing electron irradiation, which may be used as an active material capable of generating sound in acoustic, underwater transducers and mechanical motion in actuator devices. It is also a primary objective of the present invention to produce an electrostrictive terpolymer such as VDF-TrFE-CFE which may be used as a replacement for electron irradiated high-strain PVDF-TrFE films. It is also a primary objective of the present invention to produce an electrostrictive terpolymer such as VDF-TrFE-CFE which has gauche-type conformational defects along the polymer chain which results in a broad distribution of polarizations that favor higher electrostrictive strains than current electrostrictive polymers. It is also an objective of the present invention to produce an electrostrictive terpolymer which exhibits larger mechanical strains than known in the art. It is also an objective of the present invention to process an electrostrictive terpolymer such as VDF-TrFE-CFE which is less expensive and less cumbersome than current electrostrictive materials and methods of making those electrostrictive materials.

Subject Categories:

  • Polymer Chemistry
  • Electricity and Magnetism
  • Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE