CN1556549A - Organic piezoelectric film polarization method - Google Patents
Organic piezoelectric film polarization method Download PDFInfo
- Publication number
- CN1556549A CN1556549A CNA2003101146731A CN200310114673A CN1556549A CN 1556549 A CN1556549 A CN 1556549A CN A2003101146731 A CNA2003101146731 A CN A2003101146731A CN 200310114673 A CN200310114673 A CN 200310114673A CN 1556549 A CN1556549 A CN 1556549A
- Authority
- CN
- China
- Prior art keywords
- polarization
- film
- piezoelectric material
- polarization method
- polarized
- 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.)
- Granted
Links
- 230000010287 polarization Effects 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 38
- 239000002131 composite material Substances 0.000 claims description 36
- 239000002184 metal Substances 0.000 claims description 6
- 230000005684 electric field Effects 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 abstract 1
- 230000035515 penetration Effects 0.000 abstract 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 11
- 239000012528 membrane Substances 0.000 description 10
- 239000002033 PVDF binder Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
Landscapes
- Treatments Of Macromolecular Shaped Articles (AREA)
Abstract
The invention relates a polarization method for organic piezoelectric film, which is based on electric contacting polarization method, by using direct current power to apply polarization voltage, the polarized film and the polarized electrode are separated by 0-3 even and flat connection compound piezoelectric materials, thus the electric field applied on the polarized film is evened and stabled, then the polarization is carried on according to normal condition, the operation is simple, it can avoids the electric penetration in the polarization process, the stability is good, high efficiency, it can upgrades the polarization period completing rate and the piezoelectric performance of the polarized film and the stability.
Description
Technical field
The invention belongs to the piezoelectric field, relate to the polarization method of organic piezoelectric film, also relate to the polarization device of piezoelectric membrane.
Background technology
Polarization is the basic craft course of giving the piezoelectric piezoelectric property, and general polarization method comprises and electrically contacts polarization, corona discharge polarization etc.Electrically contacting polarization is directly to lay metal electrode at polarized material surface, applies direct voltage or alternation cyclical voltage; The corona discharge polarization is a kind of noncontact polarization mode, applies high voltage on the relative needle electrode of two rows, forms corona ring, and the film that is between two row's needle electrodes is polarized.When PVDF and P (VDF-TrFE) the film film that especially thickness is lower being polarized with these methods, because the dynamo-electric defective on the film, very easily causing polarization to puncture, making polarized film be difficult to abundant polarization, causing the piezoelectric property of film low, technology stability is poor, production efficiency is low.Puncture for fear of polarization, obtain uniform and stable piezoelectric property, the Bernd PLOSS of Germany and Beatrix PLOSS were at the 9th international electret meeting (Proceedings ISE9 in 1996, p.835, Shanghai 1996) publish thesis, the piezoelectric ceramic that polarized in advance of employing single-sided polishing and PVDF or P (VDF-TrFE) form sandwich and polarize, but because piezoelectric ceramic is hard and crisp, organic film coupling difficulty with flexibility, it is frangible to add man-hour, especially for the polarized film of large tracts of land, be difficult to guarantee the comprehensive engagement on piezoelectric ceramic and organic film surface, influence degree of polarization and uniformity.
Summary of the invention
The present invention aims to provide a kind of polarization method for organic piezoelectric film, by the polarization method that employing the present invention relates to, realizes abundant, evenly polarization to piezoelectric membrane, avoids polarization process to puncture.
The present invention realizes like this, to electrically contact polarization method, adopt DC power supply to apply polarizing voltage, connect composite piezoelectric material 3 (hereinafter to be referred as composite piezoelectric material 3) with even, smooth 0-3 and isolate polarized film 2 and polarizing electrode 1 (structural representation is in accompanying drawing 1 or 2), make the electric field that acts on the polarized film even, stable, condition polarizes routinely.The polarization method for organic piezoelectric film that the present invention relates to can adopt composite piezoelectric material 3 that itself and metal electrode 1 are isolated at the single or double of polarized film.
The relative dielectric constant of employed composite piezoelectric material is generally 10～100 in the polarization method that the present invention relates to, piezoelectric coefficient d
33Be 10 * 10
-12C/N～60 * 10
-12C/N, thickness 0.2mm～10mm.
The polarization method that the present invention relates to can directly use composite piezoelectric material, also can use its back of polarizing in advance.Adopt the composite piezoelectric material of polarization in advance, better effects if.When adopting the composite piezoelectric material of polarization in advance, should make the polarity of composite piezoelectric material opposite with applied voltage, that is: lay the structure of composite piezoelectric material for the two sides, wherein the negative pole of the positive pole of a slice composite piezoelectric material 3 and power supply 4 joins, negative pole links to each other with polarized film 2, the positive pole of the negative pole of another sheet composite piezoelectric material 3 and additional power source 4 joins, and anodal and polarized film 2 links to each other.Structure for single face is laid composite piezoelectric material 3 adopts same connected mode, and best connected mode is that the positive pole of composite piezoelectric material 3 and the negative pole of additional power source 4 join, and the positive pole of power supply and polarized film join.
The polarization method that this method relates to, the polarization temperature generally between room temperature～120 ℃, is preferably between 40 ℃～80 ℃, and the polarizing voltage that applies is relevant with the thickness of the thickness of polarized film, composite piezoelectric material, is generally 4KV～15KV; Polarization time is generally between 10min～90min.
The polarization method that the present invention relates to is applicable to the PVDF and P (VDF-TrFE) film of unidirectional or biaxial tension, is specially adapted to the organic film of thickness less than 100 μ m.
The polarization method that employing the present invention relates to, to electrically contact polarization method, make the electric field that acts on the polarized film even, stable, condition polarizes routinely, simple to operate, avoided polarization to puncture, the polarization process good stability can significantly improve the piezoelectric property and the piezoelectric property stability of polarization cycle completion rate and polarized film.The polarization method good reproducibility that the present invention relates to, the production efficiency height.
Description of drawings
Accompanying drawing 1 the present invention relates to a kind of polarization structure schematic diagram of polarization method
Accompanying drawing 2 the present invention relates to the another kind of polarization structure schematic diagram of polarization method
Embodiment
Below in conjunction with embodiment the polarization method that the present invention relates to is described in detail, but not as limitation of the present invention.
Comparative Examples
Adopt routine directly to electrically contact polarization mode, to 5 times of simple tensions, thickness is that the pvdf membrane of 30 μ m polarizes polarizing voltage 1.5kV, 80 ℃ of polarization temperature, polarization time 40min, charged then cool to room temperature, 10 groups of parallel test polarization cycle completion rates 30%, piezoelectric property disperses, d
33Low.Data are seen attached list.
Embodiment one
Adopt accompanying drawing 1 shown device, place the 0-3 that polarizes in advance and be connected composite piezoelectric material between electrode and polarized film, composite piezoelectric material thickness 1mm, relative dielectric constant are 50, piezoelectric coefficient d
33Be 25pC/N, to 5 times of simple tensions, thickness is that the pvdf membrane of 30 μ m polarizes polarizing voltage 12kV, 80 ℃ of polarization temperature, polarization time 40min, charged then cool to room temperature, 10 groups of parallel test polarization cycle completion rates 100%, piezoelectric property height, good reproducibility.Data are seen attached list.
Embodiment two
Adopt accompanying drawing 2 shown devices, the 0-3 that places polarization in advance between electrode and polarized film is connected composite piezoelectric material, and the positive pole of composite piezoelectric material is connected with the negative pole of applied voltage, composite piezoelectric material thickness 1mm, relative dielectric constant is 50, piezoelectric coefficient d
33Be 25pC/N, to 5 times of simple tensions, thickness is that the pvdf membrane of 30 μ m polarizes.Polarizing voltage 6kV, 80 ℃ of polarization temperature, polarization time 40min, charged then cool to room temperature, 10 groups of parallel test polarization cycle completion rates 100%, piezoelectric property height, good reproducibility.Data are seen attached list.
Embodiment three
Adopt accompanying drawing 2 shown devices, the unpolarized 0-3 of placement is connected composite piezoelectric material between electrode and polarized film, and composite piezoelectric material thickness 1mm, relative dielectric constant are 50, and to 5 times of simple tensions, thickness is that the pvdf membrane of 30 μ m polarizes.Polarizing voltage 6kV, 80 ℃ of polarization temperature, polarization time 40min, charged then cool to room temperature, 10 groups of parallel test polarization cycle completion rates 100%, piezoelectric property height, good reproducibility.Data are seen attached list.
Embodiment four
Adopt accompanying drawing 2 shown devices, the 0-3 that places polarization in advance between electrode and polarized film is connected composite piezoelectric material, and the positive pole of composite piezoelectric material is connected with the negative pole of applied voltage, composite piezoelectric material thickness 1mm, relative dielectric constant is 10, piezoelectric coefficient d
33Be 10pC/N, to 5 times of simple tensions, thickness is that the pvdf membrane of 30 μ m polarizes.Polarizing voltage 6kV, 80 ℃ of polarization temperature, polarization time 40min, charged then cool to room temperature, 10 groups of parallel test polarization cycle completion rates 100%, piezoelectric property height, good reproducibility.Data are seen attached list.
Embodiment five
Adopt accompanying drawing 2 shown devices, the 0-3 that places polarization in advance between electrode and polarized film is connected composite piezoelectric material, and the positive pole of composite piezoelectric material is connected with the negative pole of applied voltage, composite piezoelectric material thickness 1mm, relative dielectric constant is 100, piezoelectric coefficient d
33Be 60pC/N, to 5 times of simple tensions, thickness is that the pvdf membrane of 30 μ m polarizes.Polarizing voltage 6kV, 80 ℃ of polarization temperature, polarization time 40min, charged then cool to room temperature, 10 groups of parallel test polarization cycle completion rates 100%, piezoelectric property height, good reproducibility.Data are seen attached list.
Embodiment six
Adopt accompanying drawing 2 shown devices, the unpolarized 0-3 of placement is connected composite piezoelectric material between electrode and polarized film, and composite piezoelectric material thickness 1mm, relative dielectric constant are 50, and to 5 times of simple tensions, thickness is that the pvdf membrane of 15 μ m polarizes.Polarizing voltage 5.5kV, 80 ℃ of polarization temperature, polarization time 40min, charged then cool to room temperature, 10 groups of parallel test polarization cycle completion rates 100%, piezoelectric property height, good reproducibility.Data are seen attached list.
Embodiment seven
Adopt accompanying drawing 2 shown devices, the unpolarized 0-3 of placement is connected composite piezoelectric material between electrode and polarized film, and composite piezoelectric material thickness 1mm, relative dielectric constant are 50, and to 5 times of simple tensions, thickness is that the pvdf membrane of 60 μ m polarizes.Polarizing voltage 7.5kV, 80 ℃ of polarization temperature, polarization time 40min, charged then cool to room temperature, 10 groups of parallel test polarization cycle completion rates 100%, piezoelectric property height, good reproducibility.Data are seen attached list.
10 groups of test data statisticses of subordinate list Comparative Examples and embodiment
| Embodiment | ????d 33Mean value 10 -12C/N | Standard deviation 10 -12C/N | Extreme difference 10 -12C/N | Polarization cycle completion rate % |
| Comparative Examples | ????7.6 | ????4.38 | ????12 | ??30 |
| Embodiment one | ????19.3 | ????0.54 | ????1.5 | ??100 |
| Embodiment two | ????20.3 | ????0.49 | ????1.3 | ??100 |
| Embodiment three | ????19.5 | ????0.57 | ????1.5 | ??100 |
| Embodiment four | ????19.1 | ????0.52 | ????1.4 | ??100 |
| Embodiment five | ????19.8 | ????0.61 | ????1.6 | ??100 |
| Embodiment six | ????19.4 | ????0.60 | ????1.6 | ??100 |
| Embodiment seven | ????20.1 | ????0.48 | ????1.2 | ??100 |
Claims (5)
1, a kind of polarization method for organic piezoelectric film, comprise the DC power supply (4) that connects into the loop, bimetallic electrode (1) and be clipped in polarized film (2) between the metal electrode is characterized in that being connected composite piezoelectric material (3) with 0-3 between metal electrode (1) and the polarized film (2) isolates.
2, polarization method for organic piezoelectric film according to claim 1 is characterized in that the one side of polarized film (2) directly contacts with metal electrode (1), and another side connects composite piezoelectric material (3) with 0-3 and isolates with metal electrode (1).
3, polarization method for organic piezoelectric film according to claim 1 and 2 is characterized in that used 0-3 connects composite piezoelectric material and do not polarize.
4, polarization method for organic piezoelectric film according to claim 1 and 2 is characterized in that used 0-3 connects composite piezoelectric material and polarizes in advance.
5, polarization method for organic piezoelectric film according to claim 1 and 2 is characterized in that the relative dielectric constant of used 0-3 connection composite piezoelectric material is 10～100, piezoelectric coefficient d
33Be 10 * 10
-12C/N～60 * 10
-12C/N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101146731A CN100411216C (en) | 2003-12-31 | 2003-12-31 | Organic piezoelectric film polarization method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101146731A CN100411216C (en) | 2003-12-31 | 2003-12-31 | Organic piezoelectric film polarization method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1556549A true CN1556549A (en) | 2004-12-22 |
| CN100411216C CN100411216C (en) | 2008-08-13 |
Family
ID=34337194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101146731A Expired - Fee Related CN100411216C (en) | 2003-12-31 | 2003-12-31 | Organic piezoelectric film polarization method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100411216C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102956812A (en) * | 2012-10-24 | 2013-03-06 | 西安交通大学 | Application and method for preparing electret piezoelectric material from head-head connected hydrogenation P (VDF-TrFE) |
| JP2016219804A (en) * | 2015-05-22 | 2016-12-22 | ダイキン工業株式会社 | Organic piezoelectric film |
| CN106876579A (en) * | 2016-12-27 | 2017-06-20 | 王开安 | Macromolecule membrane polarization method and device, polarized film, electronic device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57202196A (en) * | 1981-06-05 | 1982-12-10 | Nippon Telegr & Teleph Corp <Ntt> | Piezoelectric type electroacoustic converter |
| JPS6130899A (en) * | 1984-07-23 | 1986-02-13 | Nec Corp | Piezoelectric speaker |
| JPH05175568A (en) * | 1991-12-20 | 1993-07-13 | Tosoh Corp | Production of piezoelectric bimorph |
| US6098460A (en) * | 1995-10-09 | 2000-08-08 | Matsushita Electric Industrial Co., Ltd. | Acceleration sensor and shock detecting device using the same |
| JP3183177B2 (en) * | 1996-08-13 | 2001-07-03 | 株式会社村田製作所 | Acceleration sensor |
| JP2000133852A (en) * | 1998-10-28 | 2000-05-12 | Sumitomo Metal Ind Ltd | Multilayer piezoelectric element and method of manufacturing the same |
-
2003
- 2003-12-31 CN CNB2003101146731A patent/CN100411216C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102956812A (en) * | 2012-10-24 | 2013-03-06 | 西安交通大学 | Application and method for preparing electret piezoelectric material from head-head connected hydrogenation P (VDF-TrFE) |
| CN102956812B (en) * | 2012-10-24 | 2015-07-01 | 西安交通大学 | Application and method for preparing electret piezoelectric material from head-head connected hydrogenation P (VDF-TrFE) |
| JP2016219804A (en) * | 2015-05-22 | 2016-12-22 | ダイキン工業株式会社 | Organic piezoelectric film |
| JP6993555B2 (en) | 2015-05-22 | 2022-01-13 | ダイキン工業株式会社 | Organic piezoelectric film |
| JP2022040121A (en) * | 2015-05-22 | 2022-03-10 | ダイキン工業株式会社 | Organic piezoelectric film |
| CN106876579A (en) * | 2016-12-27 | 2017-06-20 | 王开安 | Macromolecule membrane polarization method and device, polarized film, electronic device |
| CN106876579B (en) * | 2016-12-27 | 2021-03-09 | 王开安 | Method and apparatus for polarizing polymer film, polarizing film, and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100411216C (en) | 2008-08-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6609072B2 (en) | EAP actuator and driving method | |
| JPS5840805B2 (en) | Coordinate input structure | |
| KR20140031170A (en) | Transparent graphene conductor with permanent dipole layer | |
| CN104795488B (en) | High ceramic content piezoceramic-polymer composite material and preparation method | |
| CN1845353A (en) | A kind of preparation method of porous polymer piezoelectric electret film | |
| US3930982A (en) | Ferroelectric apparatus for dielectrophoresis particle extraction | |
| EP3459126B1 (en) | Actuator device based on an electroactive polymer | |
| CN1556549A (en) | Organic piezoelectric film polarization method | |
| CN109799904A (en) | A kind of touch feedback structure and preparation method thereof and application based on PVC gel driving | |
| CN107342358A (en) | A kind of organic ferroelectric thin film polarization device | |
| CN108428783B (en) | Longitudinal gradient piezoelectric fiber composite material and preparation method thereof | |
| CN209729962U (en) | A polarized component | |
| CN106876579A (en) | Macromolecule membrane polarization method and device, polarized film, electronic device | |
| WO2021168750A1 (en) | Piezoelectric film and preparation method therefor, and piezoelectric film sensor | |
| CN1402271A (en) | Method for treating ceramic capacitor | |
| CN1392194A (en) | Poly meta-fluoroethylene/lead zirconate titanate/terbium dysprosium iron composite material sheet with magnetoelectric property and its preparation | |
| CN212542477U (en) | Polarization device | |
| JPS62298189A (en) | Piezoelectric actuator | |
| TWI747556B (en) | Method for polarizing piezoelectric film | |
| CN2561160Y (en) | Piezoelectric conversion circuit drive module for multiple loads | |
| JPH0191412A (en) | Manufacture or piezo-electric polymer film | |
| CN1551381A (en) | Piezoelectric transducer, power supply circuit and lighting device using the same | |
| CN1864317A (en) | Piezoelectric transformer driving apparatus and piezoelectric transformer driving method | |
| Gunawan et al. | Experimental investigation of electrode pattern design for PVDF response | |
| CN116208025B (en) | Driving method of piezoelectric bimorph structure, actuator and micro piezoelectric pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080813 Termination date: 20131231 |