WO2020262129A1 - 誘電エラストマートランスデューサ - Google Patents

誘電エラストマートランスデューサ Download PDF

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Publication number
WO2020262129A1
WO2020262129A1 PCT/JP2020/023695 JP2020023695W WO2020262129A1 WO 2020262129 A1 WO2020262129 A1 WO 2020262129A1 JP 2020023695 W JP2020023695 W JP 2020023695W WO 2020262129 A1 WO2020262129 A1 WO 2020262129A1
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WO
WIPO (PCT)
Prior art keywords
dielectric elastomer
range
particle size
carbon black
measured
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.)
Ceased
Application number
PCT/JP2020/023695
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English (en)
French (fr)
Japanese (ja)
Inventor
正毅 千葉
美紀夫 和氣
貢 上島
竹下　誠
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.)
Zeon Corp
Original Assignee
Zeon Corp
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 Zeon Corp filed Critical Zeon Corp
Priority to JP2021526824A priority Critical patent/JPWO2020262129A1/ja
Priority to US17/596,762 priority patent/US11904358B2/en
Priority to CN202080044673.0A priority patent/CN114008911A/zh
Priority to EP20831571.3A priority patent/EP3989431A4/en
Publication of WO2020262129A1 publication Critical patent/WO2020262129A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/0292—Electrostatic transducers, e.g. electret-type
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/44—Carbon
    • C09C1/48—Carbon black
    • 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
    • H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
    • H10N30/206—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using only longitudinal or thickness displacement, e.g. d33 or d31 type devices
    • 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
    • H10N30/80—Constructional details
    • H10N30/87—Electrodes or interconnections, e.g. leads or terminals
    • H10N30/877—Conductive materials
    • H10N30/878—Conductive materials the principal material being non-metallic, e.g. oxide or carbon based
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/51—Particles with a specific particle size distribution
    • C01P2004/53—Particles with a specific particle size distribution bimodal size distribution
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/40—Electric properties

Definitions

  • the present invention relates to a dielectric elastomer transducer.
  • a dielectric elastomer transducer having a dielectric elastomer layer and a pair of electrode layers sandwiching the dielectric elastomer layer is expected to be used in various fields such as drive applications, power generation applications, and sensor applications.
  • Patent Document 1 discloses an example of a conventional dielectric elastomer transducer.
  • silver nanowires, carbon nanowires, carbon nanotubes, carbon nanofillers and the like are exemplified as constituent materials of the electrode layer.
  • the dielectric elastomer transducer is generally used on the premise of remarkable elasticity of the dielectric elastomer layer. Therefore, the electrode layer is also required to have elasticity enough to follow the dielectric elastomer layer. On the other hand, since the electrode layer is charged (applied with voltage), it is necessary to avoid being in an insulated state due to expansion and contraction.
  • the present invention has been conceived under the above circumstances, and an object of the present invention is to provide a dielectric elastomer transducer capable of achieving both elasticity and conductivity.
  • the dielectric elastomer transducer provided by the present invention is a dielectric elastomer transducer including a dielectric elastomer layer and a pair of electrode layers sandwiching the dielectric elastomer layer, and the electrode layer is measured by a dynamic light scattering method. 95% or more was included in the range of 0.15 ⁇ m or more and 8.0 ⁇ m or less, the particle size measured by the laser scattering method was 0.4 ⁇ m or more and 50 ⁇ m or less, and the particle size was measured by the dynamic light scattering method.
  • Carbon blacks and binders having a first peak with a particle size of 0.15 ⁇ m or more and 1.0 ⁇ m or less in the first range and a second peak in the second range of 1.0 ⁇ m or more and 8.0 ⁇ m or less. ..
  • the second peak is larger than the first peak.
  • FIG. 1 shows an example of a dielectric elastomer transducer according to the present invention.
  • the illustrated transducer 1 includes a dielectric elastomer element 2, a support 3, and a rod 4.
  • the dielectric elastomer element 2 has a dielectric elastomer layer 21 and a pair of electrode layers 22.
  • the dielectric elastomer layer 21 is required to be elastically deformable and have high dielectric strength.
  • the material of the dielectric elastomer layer 21 is not particularly limited, and preferred examples thereof include silicone elastomers, acrylic elastomers, and styrene elastomers.
  • the dielectric elastomer layer 21 has a circular shape or an annular shape, but is not limited thereto.
  • the pair of electrode layers 22 sandwich the dielectric elastomer layer 21 and a voltage is applied to them.
  • the electrode layer 22 is made of a material that has conductivity and is capable of elastic deformation that can follow the elastic deformation of the dielectric elastomer layer 21. Examples of such a material include a material in which a filler that imparts conductivity is mixed with an elastically deformable main material. Examples of the elastically deformable main material include polymer-based materials and grease materials. In the present embodiment, for example, carbon black having a particle size distribution described later is adopted as the filler. In the illustrated example, the electrode layer 22 has a circular shape or an annular shape, but is not limited thereto.
  • the support 3 is a support structure that supports the dielectric elastomer element 2 in a desired state.
  • the support 3 includes a support disc 30 and a support ring 31.
  • the support disk 30 and the support ring 31 are preferably made of an insulating material such as resin.
  • the support disk 30 supports the central portion of the dielectric elastomer element 2.
  • the support ring 31 supports the outer peripheral portion of the dielectric elastomer element 2.
  • the rod 4 is a shaft that outputs a driving force when the transducer 1 is used as an actuator, and is a shaft to which an external force is input when the transducer 1 is used as a power generation device. In the illustrated example, one end of the rod 4 is fixed to the support disc 30.
  • FIG. 2 shows the particle size distribution measured by the dynamic light diffusion method of carbon black used for the electrode layer 22.
  • FIG. 3 shows the particle size distribution measured by the laser scattering method. Examples of the measurement method of the dynamic light diffusion method and the laser scattering method include the following measurement methods.
  • CyH was used as a solvent, and a carbon black dispersion liquid in which carbon black was dispersed was prepared.
  • Preliminary dilution before particle size measurement (1-1) 2 ml of each carbon black dispersion was collected in a glass container, and IPA (isopropyl alcohol: Kanto Chemical Deer Grade 1) was added thereto to obtain a pre-diluted solution.
  • IPA isopropyl alcohol: Kanto Chemical Deer Grade 1
  • ultrasonic treatment was performed. The ultrasonic conditions were frequency: 39 kHz, output 100 W, and irradiation time 3 minutes.
  • the following particle size measurements were performed within 10 minutes after the ultrasonic treatment.
  • ⁇ Dynamic light scattering method> (2-1) A Zeta Sizar Nano series manufactured by Malvern Co., Ltd. was used as a measuring device by a dynamic light scattering method. The device was properly calibrated with standard particle size particles (LTX3060A, LTX3200A) in advance so that, for example, the measurement error was 2% or less. (2-2) 1 ml of the preliminary diluent was placed in a 12 mm square glass cell (PCS1115) and set in the apparatus. A cap was attached to the glass cell. (2-3) The particle information was set to a refractive index of 2.0 and an imaginary part of 0.850.
  • ⁇ Laser scattering method> (3-1) A master sizer 3000 manufactured by Malvern Co., Ltd. was used as a measuring device by a laser scattering method. (3-2) The particle information was set to a refractive index of 2.0 and an imaginary part of 0.850. (3-3) The solvent information was set to ethanol and a refractive index of 1.3600. (3-4) Ethanol (Kanto Chemical Deer Grade 1) was used as the solvent used for the measurement. (3-5) The dispersion unit was filled with the specified amount of ethanol and circulated in the apparatus for 120 seconds.
  • Example A uses Cabot's model number VULCAN XCR72R
  • Example B uses CABOT's model number Blackpearls2000.
  • the nominal particle size of Example A is 30 nm and the nominal specific surface area is 254 m 2 / g.
  • the nominal particle size of Example B is 15 nm and the nominal specific surface area is 1475 m 2 / g.
  • Comparative Example C uses model number # 3030B manufactured by Mitsubishi Chemical Corporation, and Comparative Example D uses model number Talker Black # 5500 manufactured by Tokai Carbon Corporation.
  • Example C has a nominal particle size of 55 nm and a nominal specific surface area of 29 m 2 / g.
  • Example D has a nominal particle size of 25 nm and a nominal specific surface area of 225 m 2 / g.
  • the particle size D1 measured by the dynamic light scattering method contained 95% or more in the range of 0.15 ⁇ m or more and 8.0 ⁇ m or less. In addition, when 95% or more is included, it means that the frequency of the measurement result included in the above range is 95% or more when the particle size of the target particle is measured.
  • the particle size D2 measured by the laser scattering method was 0.4 ⁇ m or more and 50 ⁇ m or less.
  • the first peak having the particle size D1 measured by the dynamic light scattering method in the first range of 0.15 ⁇ m or more and 1.0 ⁇ m or less is present. It had a second peak existing in the second range of 1.0 ⁇ m or more and 8.0 ⁇ m or less. Further, in both Examples A and B, the second peak is larger than the first peak.
  • the particle size D1 measured by the dynamic light scattering method contains 95% or more in the range of 0.15 ⁇ m or more and 8.0 ⁇ m or less, and the laser.
  • the particle size D2 measured by the scattering method was 0.4 ⁇ m or more and 50 ⁇ m or less.
  • the particle size D1 measured by the dynamic light scattering method has a first peak existing in the first range of 0.15 ⁇ m or more and 1.0 ⁇ m or less, and a second peak existing in the second range of 1.0 ⁇ m or more and 8.0 ⁇ m or less. It had two peaks. According to the research by the inventors, it was confirmed that such Examples A and B have good conductivity and good elasticity.
  • the electrode layer 22 contains carbon black 221,222 in the binder 220.
  • the carbon black 221 is an aggregate of a plurality of carbon black single particles by aggregation or the like, and corresponds to the particle size D1 of the second peak belonging to the above-mentioned second range.
  • carbon black 222 is a single particle of carbon black or an aggregate of a small number of these particles, and corresponds to the particle size D1 of the first peak belonging to the above-mentioned first range.
  • the composition is such that the carbon black 221 is relatively more present than the carbon black 222.
  • a large amount of carbon black 221 that contributes to maintaining the basic conductivity and elasticity of the electrode layer 22 is present, which is preferable for improving the conductivity and elasticity.
  • the dielectric elastomer transducer according to the present invention is not limited to the above-described embodiment.
  • the specific configuration of each part of the dielectric elastomer transducer according to the present invention can be freely redesigned.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
PCT/JP2020/023695 2019-06-24 2020-06-17 誘電エラストマートランスデューサ Ceased WO2020262129A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2021526824A JPWO2020262129A1 (https=) 2019-06-24 2020-06-17
US17/596,762 US11904358B2 (en) 2019-06-24 2020-06-17 Dielectric elastomer transducer
CN202080044673.0A CN114008911A (zh) 2019-06-24 2020-06-17 介电弹性体换能器
EP20831571.3A EP3989431A4 (en) 2019-06-24 2020-06-17 DIELECTRIC ELASTOMER TRANSDUCER

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-116435 2019-06-24
JP2019116435 2019-06-24

Publications (1)

Publication Number Publication Date
WO2020262129A1 true WO2020262129A1 (ja) 2020-12-30

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PCT/JP2020/023695 Ceased WO2020262129A1 (ja) 2019-06-24 2020-06-17 誘電エラストマートランスデューサ

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US (1) US11904358B2 (https=)
EP (1) EP3989431A4 (https=)
JP (1) JPWO2020262129A1 (https=)
CN (1) CN114008911A (https=)
WO (1) WO2020262129A1 (https=)

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JPWO2020262129A1 (https=) * 2019-06-24 2020-12-30
CN115734943A (zh) * 2020-07-07 2023-03-03 千叶正毅 电磁波吸收材料、电磁波吸收涂料、电子设备以及树脂部件

Citations (3)

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JP2008251833A (ja) * 2007-03-30 2008-10-16 Tokai Rubber Ind Ltd アクチュエータおよびアクチュエータ集束体
JP2015189776A (ja) * 2014-03-27 2015-11-02 住友理工株式会社 誘電膜およびそれを用いたトランスデューサ
JP2017034923A (ja) 2015-08-05 2017-02-09 日立化成株式会社 ポリマアクチュエータ

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CN101449210B (zh) * 2006-05-18 2011-12-21 三菱化学株式会社 电子照相感光体和导电性基体的制造方法以及成像装置和电子照相盒
EP2019338B1 (en) * 2006-05-18 2013-07-03 Mitsubishi Chemical Corporation Electrophotographic photosensitive body, image forming device, and electrophotographic cartridge
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JP2015189776A (ja) * 2014-03-27 2015-11-02 住友理工株式会社 誘電膜およびそれを用いたトランスデューサ
JP2017034923A (ja) 2015-08-05 2017-02-09 日立化成株式会社 ポリマアクチュエータ

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Title
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Publication number Publication date
EP3989431A4 (en) 2023-07-19
EP3989431A1 (en) 2022-04-27
US11904358B2 (en) 2024-02-20
JPWO2020262129A1 (https=) 2020-12-30
CN114008911A (zh) 2022-02-01
US20220314276A1 (en) 2022-10-06

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