JPS5723286A - Manufacture of film for piezoelectricity or pyroelectricity - Google Patents

Manufacture of film for piezoelectricity or pyroelectricity

Info

Publication number
JPS5723286A
JPS5723286A JP9762780A JP9762780A JPS5723286A JP S5723286 A JPS5723286 A JP S5723286A JP 9762780 A JP9762780 A JP 9762780A JP 9762780 A JP9762780 A JP 9762780A JP S5723286 A JPS5723286 A JP S5723286A
Authority
JP
Japan
Prior art keywords
film
pyroelectricity
piezoelectricity
polarized
heating part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP9762780A
Other languages
Japanese (ja)
Inventor
Koji Takeda
Kazumasa Yamamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP9762780A priority Critical patent/JPS5723286A/en
Publication of JPS5723286A publication Critical patent/JPS5723286A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/01—Manufacture or treatment
    • H10N30/04—Treatments to modify a piezoelectric or electrostrictive property, e.g. polarisation characteristics, vibration characteristics or mode tuning
    • H10N30/045—Treatments to modify a piezoelectric or electrostrictive property, e.g. polarisation characteristics, vibration characteristics or mode tuning by polarising
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/01—Manufacture or treatment
    • H10N30/09—Forming piezoelectric or electrostrictive materials
    • H10N30/098—Forming organic materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

PURPOSE:To continuously obtain a film for piezoelectricity or pyroelectricity, having a large piezoelectric constant or pyroelectric coefficient, by a method wherein a contiuous film for piezoelectricity or pyroelectricity is passed through a heating part and a cooling part, being oriented and, at the same time, polarized by means of corona discharge in said heating part, while being cooled and, at the same time, polarized similarly by means of corona discharge in said cooling part. CONSTITUTION:A heating part 1 and a cooling part 2 are disposed, in the mentioned order, on the passage of a film 3 for piezoelectricity or pyroelectricity made of polyvinylidene fluoride or the like, and continuously passing between carrying rollers 4 and 5. In such a constitution, means to jet out a hot air 1a of 50-90 deg.C are provided above the film 3 in the heating part 1, and corona discharging electrodes 6 and 7 are disposed therebelow. Moreover, in the cooling part 2, a cooling means to jet out a cold air 2a is provided above the film 3, and a corona discharging electrode 8 is similarly disposed therebelow. The film 3 is thus polarized while being oriented in the heating part 1, and cooled while being polarized in the cooling part. Thereby, productivity can be raised 100 times higher than the batch process.
JP9762780A 1980-07-18 1980-07-18 Manufacture of film for piezoelectricity or pyroelectricity Pending JPS5723286A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9762780A JPS5723286A (en) 1980-07-18 1980-07-18 Manufacture of film for piezoelectricity or pyroelectricity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9762780A JPS5723286A (en) 1980-07-18 1980-07-18 Manufacture of film for piezoelectricity or pyroelectricity

Publications (1)

Publication Number Publication Date
JPS5723286A true JPS5723286A (en) 1982-02-06

Family

ID=14197411

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9762780A Pending JPS5723286A (en) 1980-07-18 1980-07-18 Manufacture of film for piezoelectricity or pyroelectricity

Country Status (1)

Country Link
JP (1) JPS5723286A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4591465A (en) * 1983-09-28 1986-05-27 Mitsubishi Petrochemical Co., Ltd. Method of producing polymeric electret element
US4592880A (en) * 1983-07-07 1986-06-03 Unitika Ltd. Process for producing a piezo- and pyro-electric film
US4808352A (en) * 1985-10-03 1989-02-28 Minnesota Mining And Manufacturing Company Crystalline vinylidene fluoride
WO2010106924A1 (en) * 2009-03-18 2010-09-23 コニカミノルタエムジー株式会社 Method of drawing organic piezoelectric material, method of producing organic piezoelectric material, ultrasound transducer, ultrasound probe and ultrasound medical image diagnosis device
JP2015083620A (en) * 2013-10-25 2015-04-30 株式会社日立製作所 Film capacitor and production device therefor
CN104347793B (en) * 2014-08-06 2017-09-26 贝骨新材料科技（上海）有限公司 Micropore piezo-electric electret thin film component volume to volume continuous polarization devices and methods therefor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4983899A (en) * 1972-12-21 1974-08-12
JPS5238580A (en) * 1975-09-23 1977-03-25 Toray Industries Method of manufacture of piezoo electric membrane of high polymer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4983899A (en) * 1972-12-21 1974-08-12
JPS5238580A (en) * 1975-09-23 1977-03-25 Toray Industries Method of manufacture of piezoo electric membrane of high polymer

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4592880A (en) * 1983-07-07 1986-06-03 Unitika Ltd. Process for producing a piezo- and pyro-electric film
US4591465A (en) * 1983-09-28 1986-05-27 Mitsubishi Petrochemical Co., Ltd. Method of producing polymeric electret element
US4808352A (en) * 1985-10-03 1989-02-28 Minnesota Mining And Manufacturing Company Crystalline vinylidene fluoride
WO2010106924A1 (en) * 2009-03-18 2010-09-23 コニカミノルタエムジー株式会社 Method of drawing organic piezoelectric material, method of producing organic piezoelectric material, ultrasound transducer, ultrasound probe and ultrasound medical image diagnosis device
JP5582136B2 (en) * 2009-03-18 2014-09-03 コニカミノルタ株式会社 Organic piezoelectric material stretching method, organic piezoelectric material manufacturing method, ultrasonic transducer, ultrasonic probe, and ultrasonic medical diagnostic imaging apparatus
JP2015083620A (en) * 2013-10-25 2015-04-30 株式会社日立製作所 Film capacitor and production device therefor
CN104347793B (en) * 2014-08-06 2017-09-26 贝骨新材料科技（上海）有限公司 Micropore piezo-electric electret thin film component volume to volume continuous polarization devices and methods therefor

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