JP5539837B2 - 電歪複合構造体及びアクチュエータ - Google Patents
電歪複合構造体及びアクチュエータ Download PDFInfo
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- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
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- F03G7/012—Electro-chemical actuators
- F03G7/0121—Electroactive polymers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G7/06—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like
- F03G7/061—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like characterised by the actuating element
- F03G7/0614—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like characterised by the actuating element using shape memory elements
- F03G7/06146—Torque tubes or torsion bars
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G7/06—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like
- F03G7/065—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like using a shape memory element
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- 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
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/10—Inorganic particles
- B32B2264/107—Ceramic
- B32B2264/108—Carbon, e.g. graphite particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
- Y10T428/24994—Fiber embedded in or on the surface of a polymeric matrix
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
- Y10T428/24994—Fiber embedded in or on the surface of a polymeric matrix
- Y10T428/249942—Fibers are aligned substantially parallel
- Y10T428/249945—Carbon or carbonaceous fiber
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249978—Voids specified as micro
Description
図1及び図2を参照すると、本実施例において、電歪複合構造体10を提供する。該電歪複合構造体10は、柔軟性の高分子構造体14及びカーボンナノチューブ膜状構造体12を含む。前記電歪複合構造体10及びカーボンナノチューブ膜状構造体12はシート状である。前記カーボンナノチューブ膜状構造体12は、分子間力で相互に結合された複数のカーボンナノチューブ122からなる。前記カーボンナノチューブ膜状構造体12は、前記柔軟性の高分子構造体14の一つの表面に設置されている。該カーボンナノチューブ膜状構造体12の少なくとも一部は、前記該柔軟性の高分子構造体14の中に浸透されている。前記カーボンナノチューブ膜状構造体の熱膨張係数は、前記柔軟性の高分子構造体の熱膨張係数と異なる。前記カーボンナノチューブ膜状構造体12の熱膨張係数は、前記柔軟性の高分子構造体14の熱膨張係数より小さいことが好ましい。前記電歪複合構造体10の厚さは20μm〜5mmである。
前記カーボンナノチューブ膜状構造体は、図4に示す、少なくとも一枚のカーボンナノチューブフィルム143aを含む。このカーボンナノチューブフィルムはドローン構造カーボンナノチューブフィルム(drawn carbon nanotube film)である。前記カーボンナノチューブフィルム143aは、超配列カーボンナノチューブアレイ(特許文献1と特許文献2を参照)から引き出して得られたものである。単一の前記カーボンナノチューブフィルムにおいて、複数のカーボンナノチューブが同じ方向に沿って、端と端が接続されている。即ち、単一の前記カーボンナノチューブフィルム143aは、分子間力で長軸方向端部同士が接続された複数のカーボンナノチューブを含む。前記カーボンナノチューブフィルム143aは自立構造を有するものである。図4及び図5を参照すると、単一の前記カーボンナノチューブフィルム143aは、複数のカーボンナノチューブセグメント143bを含む。前記複数のカーボンナノチューブセグメント143bは、長軸方向に沿って分子間力で端と端が接続されている。それぞれのカーボンナノチューブセグメント143bは、相互に平行に、分子間力で結合された複数のカーボンナノチューブ145を含む。単一の前記カーボンナノチューブセグメント143bにおいて、前記複数のカーボンナノチューブ145の長さが同じである。前記カーボンナノチューブフィルム143aを有機溶剤に浸漬させることにより、前記カーボンナノチューブフィルム143aの強靭性及び機械強度を高めることができる。前記カーボンナノチューブフィルム143aの厚さは0.5nm〜100μmに設けられる。
前記カーボンナノチューブ膜状構造体12は、図6に示す、前記カーボンナノチューブ膜状構造体12は、少なくとも一枚のカーボンナノチューブフィルムを含む。このカーボンナノチューブフィルムは綿毛構造カーボンナノチューブフィルム(flocculated carbon nanotube film)である。単一の前記カーボンナノチューブフィルムにおいて、複数のカーボンナノチューブは、絡み合い、等方的に配列されている。前記カーボンナノチューブ膜状構造体においては、前記複数のカーボンナノチューブが均一に分布されている。複数のカーボンナノチューブは配向せずに配置されている。単一の前記カーボンナノチューブの長さは、100nm以上であり、100nm〜10cmであることが好ましい。前記複数のカーボンナノチューブは、分子間力で接近して、相互に絡み合って、カーボンナノチューブネット状に形成されている。前記複数のカーボンナノチューブは配向せずに配置されて、多くの微小な穴が形成されている。ここで、単一の前記微小な穴の直径が10μm以下になる。前記カーボンナノチューブ膜状構造体におけるカーボンナノチューブは、相互に絡み合って配置されるので、該カーボンナノチューブ膜状構造体は柔軟性に優れ、任意の形状に湾曲して形成させることができる。用途に応じて、前記カーボンナノチューブ膜状構造体の長さ及び幅を調整することができる。前記カーボンナノチューブ膜状構造体の厚さは、0.5nm〜1mmである。
前記カーボンナノチューブ膜状構造体は、少なくとも一枚のカーボンナノチューブフィルム(図7を参照)を含む。このカーボンナノチューブフィルムは、プレシッド構造カーボンナノチューブフィルム(pressed carbon nanotube film)である。単一の前記カーボンナノチューブフィルムにおける複数のカーボンナノチューブは、等方的に配列されているか、所定の方向に沿って配列されているか、または、異なる複数の方向に沿って配列されている。前記カーボンナノチューブフィルムは、押し器具を利用することにより、所定の圧力をかけて前記カーボンナノチューブアレイを押し、該カーボンナノチューブアレイを圧力で倒すことにより形成された、シート状の自立構造を有するものである。前記カーボンナノチューブフィルムにおけるカーボンナノチューブの配列方向は、前記押し器具の形状及び前記カーボンナノチューブアレイを押す方向により決められている。
図9と図10を参照すると、本実施例は、実施例1の電歪複合構造体10を利用したアクチュエータ20を提供する。該アクチュエータ20は、電歪複合構造体10と、第一電極22と、第二電極24と、を含む。前記第一電極22及び第二電極24は、間隔を空けて設置され、且つ前記カーボンナノチューブ膜状構造体10と電気的に接続される。
12 カーボンナノチューブ膜状構造体
122 カーボンナノチューブ
14 柔軟性の高分子構造体
143a カーボンナノチューブフィルム
143b カーボンナノチューブセグメント
16 電極
16a 第一電極
16b 第二電極
20 アクチュエータ
22 第一電極
24 第二電極
Claims (2)
- 柔軟性の高分子構造体及びカーボンナノチューブ膜状構造体を含み、
前記カーボンナノチューブ膜状構造体が、前記柔軟性の高分子構造体の一つの表面に設置され、前記カーボンナノチューブ膜状構造体の少なくとも一部が、前記柔軟性の高分子構造体の中に埋め込まれ、
前記柔軟性の高分子構造体における少なくとも一部の高分子材料が、前記カーボンナノチューブ膜状構造体に浸透し、
前記カーボンナノチューブ膜状構造体が、複数のカーボンナノチューブからなる自立構造を有するものであり、
前記カーボンナノチューブ膜状構造体の熱膨張係数が、前記柔軟性の高分子構造体の熱膨張係数と異なることを特徴とする電熱アクチュエータ用の電歪複合構造体。 - 電歪複合構造体、第一電極及び第二電極を含む電熱アクチュエータにおいて、
前記電歪複合構造体が、柔軟性の高分子構造体及びカーボンナノチューブ膜状構造体を含み、
前記カーボンナノチューブ膜状構造体が、前記柔軟性の高分子構造体の一つの表面に設置され、前記カーボンナノチューブ膜状構造体の少なくとも一部が、前記柔軟性の高分子構造体の中に埋め込まれ、
前記柔軟性の高分子構造体における少なくとも一部の高分子材料が、前記カーボンナノチューブ膜状構造体に浸透し、
前記カーボンナノチューブ膜状構造体が、複数のカーボンナノチューブからなる自立構造を有し、
前記第一電極及び前記第二電極が、前記電歪複合構造体の対向する両方の端部に設置され、前記カーボンナノチューブ膜状構造体と電気的に接続されていて、
前記カーボンナノチューブ膜状構造体の熱膨張係数が、前記柔軟性の高分子構造体の熱膨張係数と異なることを特徴とする電熱アクチュエータ。
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CN2009101103127A CN102044627A (zh) | 2009-10-22 | 2009-10-22 | 电致伸缩复合材料及电致伸缩元件 |
CN200910110312.7 | 2009-10-22 |
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JP5539837B2 true JP5539837B2 (ja) | 2014-07-02 |
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Cited By (4)
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US8801115B2 (en) | 2008-12-09 | 2014-08-12 | Vermeer Manufacturing Company | Apparatus for converting a wheeled vehicle to a tracked vehicle |
US8827013B2 (en) | 2006-12-11 | 2014-09-09 | Vermeer Manufacturing Company | Apparatus for converting a wheeled vehicle to a tracked vehicle |
US20160025077A1 (en) * | 2014-07-23 | 2016-01-28 | Tsinghua University | Electrothermal composite material and electrothermal actuator using the same |
US20160025079A1 (en) * | 2014-07-23 | 2016-01-28 | Tsinghua University | Electrothermal actuators |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
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US20160233415A1 (en) | 2016-08-11 |
US10038135B2 (en) | 2018-07-31 |
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US20130333374A1 (en) | 2013-12-19 |
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