Piezoelectric and pyroelectric tubes

Details Piezoelectric and pyroelectric tubes Piezoelectric and pyroelectric tubes

H - Electricity

01

L

345/14, 356/200

H01L 31/18 (2006.01) H01L 37/02 (2006.01) H01L 41/22 (2006.01) H01L 41/26 (2006.01)

Patent

CA 1206277

ABSTRACT PIEZOELECTRIC AND PYROELECTRIC TUBES Film with piezoelectric and pyroelectric properties is obtained by extruding PVDF, stretching the extrudate and applying a corona discharge, preferably at the place where stretching occurs. The PVDF may be homopolymer, but copolymers of at least 50 mole % of vinylidene fluoride with tetrafluoroethylene and/or trifluoroethylene may be used.

423765

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