WO2015115272A1 - 流路プレート - Google Patents
流路プレート Download PDFInfo
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- WO2015115272A1 WO2015115272A1 PCT/JP2015/051540 JP2015051540W WO2015115272A1 WO 2015115272 A1 WO2015115272 A1 WO 2015115272A1 JP 2015051540 W JP2015051540 W JP 2015051540W WO 2015115272 A1 WO2015115272 A1 WO 2015115272A1
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- Prior art keywords
- electrode
- flow path
- flow
- base material
- plate
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- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
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Definitions
- the present invention relates to a flow path plate having an electrode in a flow path, and more particularly to a flow path plate having an electrode in a flow path and applying a voltage to the electrode to continuously perform an electrochemical reaction.
- a flow path plate formed by a joining member obtained by joining two base materials is used as a microreactor or analysis chip.
- Patent Document 1 discloses a microfluidic device for flowing a fluid containing particles to be captured so that a microvortex is formed in the fluid by flowing the fluid through a groove defined on the surface of the wall of the microchannel. It is disclosed.
- FIG. 12 is an explanatory diagram showing a particle flow path in the microchannel 115 in which a groove 135 is formed on the wall.
- grooves 135 in the fluid path disrupt fluid flow.
- micro-vortices are generated in the fluid.
- micro-vortices are not generated, but the grooves 135 cause sufficient turbulence to change the fluid portion flow path, increasing the interaction between the walls and the particles.
- a channel plate that performs an electrochemical reaction as a microreactor has electrodes in the channel. And an electrochemical oxidation-reduction reaction is performed on the electrode surface by applying a voltage to the electrode provided in the flow path. A fluid can be circulated through the flow path to continuously perform an electrochemical reaction.
- the microfluidic device described in Patent Document 1 does not include an electrode and cannot perform an electrochemical reaction. For this reason, it is conceivable to add electrodes upstream and downstream of the flow path.
- This invention solves the subject mentioned above, and aims at providing the flow-path plate which can be fully made to electrochemically react.
- the present invention provides a flow path in which a recess formed in at least one of the first base material and the second base material is bonded to the first base material and the second base material.
- a recess formed in at least one of the first base material and the second base material is bonded to the first base material and the second base material.
- the plate at least a part of the portion corresponding to the flow path of the second base material is provided with an electrode having an uneven shape that promotes the turbulent flow of the fluid flowing through the flow path.
- the second substrate is provided with an electrode take-out portion that is electrically connected to the electrode.
- the electrode provided with the uneven shape by the electrode provided with the uneven shape, the fluid flowing through the flow path becomes turbulent and the stirring efficiency can be increased on the electrode. Further, in the electrode provided with the uneven shape, the side surface also functions as an electrode, and the electrode area can be made larger than that of the flat plate electrode. Therefore, the electrochemical reaction can be sufficiently performed.
- the first base material has a flat plate shape, and the concave portion is formed.
- the second base material has a flat plate shape, and the projections and depressions of the electrodes have a predetermined angle with respect to the liquid feeding direction of the flow path, and the plurality of projections. And an electrode film provided between them.
- the plurality of protrusions are V-shaped having apexes upstream of the fluid flowing through the flow channel.
- the stirring efficiency can be further increased on the electrode.
- the plurality of protrusions when the flow channel has a height direction in a direction perpendicular to the surface of the second base material, the plurality of protrusions have a height of the flow channel in the height direction. It is characterized by being formed in a height that is in the range of one third to two thirds.
- the electrode take-out portion includes an external electrode formed on a surface opposite to the flow channel side of the second base material, and the second base material on the opposite side. And a through electrode provided so as to penetrate from the surface to the surface on the flow path side, and is electrically connected to the electrode by the through electrode.
- the electrode can be taken out without affecting the flow path, and the fluid flowing through the flow path becomes a turbulent flow and does not hinder the stirring efficiency on the electrode.
- the electrode and the electrode take-out portion are formed by printing a conductive paste containing carbon.
- the electrode provided with the concavo-convex shape allows the fluid flowing through the flow path to be turbulent, increasing the stirring efficiency on the electrode and increasing the electrode area.
- a channel plate to be reacted can be provided.
- FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 2. It is explanatory drawing which shows the flow of a fluid. It is explanatory drawing which shows the flow of the fluid on an electrode. It is process drawing which manufactures the flow-path plate of embodiment of this invention, and is process drawing which shape
- FIG. 1 is a perspective view showing a flow path plate 1 according to an embodiment of the present invention.
- FIG. 2 is a plan view showing the flow path plate 1 according to the embodiment of the present invention.
- FIG. 3 is a perspective view showing the second base material 20 and the electrode 30. 4 is a cross-sectional view taken along line IV-IV in FIG.
- the flow path plate 1 forms a flow path 5 for flowing a fluid by bonding a first base material 10 and a second base material 20 together.
- FIG. 1 shows a part of the flow path 5, and various functional parts for controlling the flow of the fluid are configured in the portion extending to the upstream 5 a and the downstream 5 b of the fluid flowing through the flow path 5. However, it is omitted in the description of this embodiment.
- the first base material 10 is formed by injection molding a cycloolefin polymer, has a flat plate shape as shown in FIGS. 1 and 2, and has a recess 11 formed therein.
- the concave portion 11 formed in the first base material 10 constitutes the wall surface of the flow path 5 of the flow path plate 1.
- the second base material 20 is formed by injection molding of a cycloolefin polymer, has a flat plate shape as shown in FIGS. 1 to 3, and a part of a portion corresponding to the flow path 5 on one surface 20a. Is provided with an electrode 30.
- the electrode 30 includes a plurality of protrusions 32 formed in a V shape having apexes 32a toward the upstream 5a of the flow path 5, and an electrode film 31 provided between the plurality of protrusions 32. .
- the electrode film 31 and the ridge 32 of the present embodiment are formed by printing a conductive paste containing carbon.
- the flow path 5 has a substantially rectangular cross section surrounded by the recess 11 and the electrode film 31, and the protrusion 32 of the electrode 30 protrudes to partially close the cross section of the flow path 5. It is peeling off.
- the protrusion 32 is provided in a V shape having an apex 32 a toward the upstream 5 a of the flow path 5, so that the electrode 30 has a predetermined angle with respect to the liquid feeding direction of the flow path 5. It has a concavo-convex shape. In the present embodiment, the angle is set to 40 degrees with respect to the liquid feeding direction of the flow path 5 (Y1-Y2 direction in FIG. 3).
- the protrusion 32 is formed in a vertical rectangular shape from the electrode film 31 (provided on the one surface 20a on the flow path 5 side of the second base material 20). As shown in FIG. 4, the protrusion 32 is formed to have a height h32 that is about half of the height (dimension in the Z1-Z2 direction) h5 of the flow path 5 in the height direction. Thereby, as shown in FIG. 4, the side surface 32 b blocks a part of the flow path 5 to change the flow of the fluid.
- an electrode take-out portion 40 is provided on the other surface 20b opposite to the one surface 20a on the flow path 5 side of the second base material 20.
- the electrode extraction part 40 is provided by penetrating the external electrode (bus electrode 41) formed on the other surface 20b of the second base material 20 and the second base material 20 from the other surface 20b to the one surface 20a.
- the electrode extraction portion 40 is electrically connected to the electrode 30 in the vicinity of the apex 32 a of the protrusion 32 by the through electrode 42.
- the through electrode 42 and the bus electrode 41 of the present embodiment are formed by printing a conductive paste containing carbon.
- the electrode take-out portion 40 is not exposed to the flow path 5 and therefore does not hinder the flow of fluid flowing through the flow path 5. Further, since the bus electrode 41 is provided on the other surface 20b opposite to the one surface 20a on the flow path 5 side through the through electrode 42, the resistance values of the through electrode 42 and the bus electrode 41 are reduced. Is easy. Therefore, resistance loss can be reduced without hindering the flow of fluid.
- the electrode 30 demonstrated the aspect by which only one set was arrange
- the several electrode is arrange
- FIG. the electrode 30 of the present embodiment is provided, and another pair of electrodes is disposed upstream or downstream of the flow path 5, and the other electrodes are also formed in the same shape as the electrode 30 of the present embodiment.
- the other electrodes that form a pair may have a shape different from that of the electrode 30 of the present embodiment.
- FIG. 5 is an explanatory diagram showing the flow of fluid.
- FIG. 6 is an explanatory diagram showing the flow of fluid on the electrode 30.
- the flow velocity component Vx flows so as to be divided into a fluid having a direction toward the X1 side and a fluid having a flow velocity component Vx directed toward the X2 side. .
- a flow in the opposite direction is generated so as to compensate for these flows.
- a swirling flow in a direction (X1-X2 direction and Z1-Z2 direction) perpendicular to the direction (Y1-Y2 direction) flowing through the flow path 5 is generated.
- the fluid in the vicinity of the boundary between the electrode film 31 and the side surface 32b of the ridge 32 is agitated, and the fluid can be easily replaced and the flow velocity is increased as compared with the laminar flow alone.
- the height h32 of the protrusion 32 is a height that is in the range of 1/3 to 2/3 of the height h5 of the flow path 5 in the height direction, a sufficient stirring effect can be obtained.
- FIG. 7 is a process diagram for manufacturing the flow path plate 1 and a process diagram for forming the first base material 10.
- FIG. 8 is a process diagram for forming the second base material 20.
- FIG. 9 is a process diagram for forming the electrode lead-out portion 40.
- FIG. 10 is a process diagram for forming the electrode film 31.
- FIG. 11 is a process diagram for forming the protrusion 32 of the electrode 30.
- the first base material 10 is formed into a flat plate shape by injection molding a cycloolefin polymer. As shown in FIG. 7, the width of the recess 11 (dimension in the X1-X2 direction) is about 4 mm and the depth (Z1 The dimension in the ⁇ Z2 direction) was about 1 mm.
- the second substrate 20 was formed into a flat plate shape by injection molding a cycloolefin polymer, and a plurality of through holes 21 having a diameter of 0.2 mm were formed at predetermined positions as shown in FIG.
- the bus electrode 41 was printed on the other surface 20b opposite to the one surface 20a of the second base material 20 by screen printing of a conductive paste containing carbon and baked. Subsequently, a conductive paste containing carbon was injected from one surface 20a of the second base material 20 into the through hole 21 with a dispenser and baked. As a result, as shown in FIG. 9, the electrode extraction portion 40 was formed on the second base material 20.
- the electrode film 31 was printed on one surface 20a of the second substrate 20 by screen printing of a conductive paste containing carbon, and baked.
- the protrusion 32 was printed by screen printing of a conductive paste containing carbon and baked, and the protrusion 32 was laminated on a part of the electrode film 31 as shown in FIG.
- the thickness of the electrode film 31 (dimension in the Z1-Z2 direction) is about 0.1 mm
- the thickness of the protrusion 32 (dimension in the Z1-Z2 direction) is about 0.5 mm
- the width is about 0.2 mm.
- the electrode 30 provided with the uneven shape was formed.
- the protrusion 32 has a rectangular cross-sectional shape, and has the height of the side surface 32b (dimension in the Z1-Z2 direction) corresponding to the thickness of the protrusion 32.
- the protrusion 32 has a V shape having a vertex 32a in the Y1 direction, and is provided so as to extend at an angle of 40 degrees with respect to the Y1-Y2 direction. Further, five ridges 32 having the vertex 32a in the X1-X2 direction at the first position are arranged side by side at a predetermined interval in the Y1-Y2 direction.
- five ridges 32 in which the position of the vertex 32a in the X1-X2 direction is the second position are similarly arranged side by side at a predetermined interval in the Y1-Y2 direction.
- the position of the through hole 21 coincides with the position of the vertex 32a
- the electrode film 31 comes into contact with the conductive paste injected into the through hole 21, and the bus electrode 41 and the electrode 30 are electrically connected.
- the surface of the first base material 10 on which the recess 11 is formed and the one surface 20a of the second base material 20 on which the electrode 30 is formed are brought into close contact with each other through an adhesive mainly composed of paraffin. It joined so that the flow path 5 might be formed, and the flow path plate 1 was obtained.
- the bonding method is not limited to the method of bonding through such an adhesive layer, and may be heat welding or the like.
- fluid is fed to the flow path 5 so that the apex 32 a of the protrusion 32 is on the upstream side.
- a voltage is applied to the electrode 30 from the bus electrode 41, and a current due to the electrochemical reaction is applied.
- the fluid flowing through the flow path 5 becomes turbulent and the stirring efficiency can be increased on the electrode 30 by the electrode 30 provided with the uneven shape. Can be fully supplied.
- the electrode area can be made larger than that of the flat plate electrode. Therefore, the fluid can be circulated through the flow path 5 while being stirred, and a voltage can be applied to the electrode 30 to cause a sufficient electrochemical reaction.
- An electrode 30 having a concavo-convex shape is formed on a part of the portion corresponding to the flow path 5 of the substrate 20.
- the electrode 30 provided with the uneven shape by the electrode 30 provided with the uneven shape, the fluid flowing in the flow path 5 becomes turbulent and the stirring efficiency can be increased on the electrode 30.
- the side surface 32b also functions as an electrode, and the electrode area can be made larger than that of the flat plate electrode. Therefore, a fluid can be circulated through the flow path 5 and a voltage can be applied to the electrode 30 provided in the flow path 5 to cause a sufficient electrochemical reaction.
- the first base material 10 has a flat plate shape and is formed with a recess 11
- the second base material 20 has a flat plate shape, and an electrode.
- 30 concavo-convex shapes are formed from a plurality of protrusions 32 having a predetermined angle with respect to the liquid feeding direction of the flow path 5 and an electrode film 31 provided between the plurality of protrusions 32.
- the plurality of protrusions 32 are V-shaped having apexes 32 a toward the upstream 5 a of the fluid flowing through the flow path 5.
- the stirring efficiency can be further increased on the electrode 30.
- the plurality of protrusions 32 are flow channels in the height direction.
- the height h5 is in the range of 1/3 to 2/3 of the height h5.
- the electrode extraction portion 40 includes a bus electrode 41 formed on the other surface 20b on the opposite side to the one surface 20a on the flow path 5 side of the second base member 20, And a through electrode 42 provided through the other surface 20b from the other surface 20b to the one surface 20a, and is electrically connected to the electrode 30 by the through electrode 42.
- the electrode can be taken out without affecting the flow path 5, and the fluid flowing through the flow path 5 becomes a turbulent flow and does not hinder the stirring efficiency on the electrode 30.
- the electrode 30 and the electrode take-out portion 40 are formed by printing a conductive paste containing carbon.
- the electrode 30 has the electrode film 31 formed between the plurality of ridges 32, but the electrode 30 may be composed of only the plurality of ridges 32.
- the plurality of protrusions 32 are two combinations in which the positions of the vertices 32a are different, but may be three or more combinations.
- the recess 11 is formed in the first base material 10, but the recess 11 and the through hole 21 may be formed in the second base material 20.
- the cycloolefin polymer was used for the 1st base material 10 and the 2nd base material 20, you may change into a cycloolefin copolymer.
- the shape of the electrode lead-out portion 40 may be another aspect.
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Abstract
Description
前記第2の基材は、平板状であって、且つ、前記電極の凹凸形状が、前記流路の送液方向に対して所定の角度を有する複数の突条と、前記複数の突条同士の間に設けられた電極膜と、から形成されることを特徴とする。
5 流路
5a 上流
5b 下流
10 第1の基材
11 凹部
20 第2の基材
20a 一方の面
20b 他方の面
21 貫通孔
30 電極
31 電極膜
32 突条
32a 頂点
32b 側面
40 電極取り出し部
41 バス電極
42 貫通電極
Claims (6)
- 第1の基材と第2の基材とを貼り合わせて、前記第1の基材と前記第2の基材の少なくともいずれかに形成された凹部を流路とする流路プレートにおいて、
前記第2の基材の少なくとも前記流路に対応する部分の一部には、前記流路を流れる流体が乱流となるのを促進する凹凸形状が設けられた電極が形成されており、
前記第2の基材には前記電極と導通する電極取り出し部が設けられていることを特徴とする流路プレート。 - 前記第1の基材は、平板状であって、且つ、前記凹部が形成され、
前記第2の基材は、平板状であって、且つ、前記電極の凹凸形状が、前記流路の送液方向に対して所定の角度を有する複数の突条と、前記複数の突条同士の間に設けられた電極膜と、から形成されることを特徴とする請求項1に記載の流路プレート。 - 前記複数の突条は、前記流路を流れる前記流体の上流に向かって頂点を有するV字状であることを特徴とする請求項2に記載の流路プレート。
- 前記流路は前記第2の基材の面に垂直な方向を高さ方向とすると、
前記複数の突条は、前記高さ方向における前記流路の高さの3分の1から3分の2の範囲となる高さに形成されていることを特徴とする請求項3に記載の流路プレート。 - 前記電極取り出し部は、前記第2の基材の前記流路側の面とは反対側の面に形成された外部電極と、前記第2の基材を前記反対側の面から前記流路側の面まで貫いて設けられた貫通電極と、を有するとともに、前記貫通電極によって前記電極に電気接続されていることを特徴とする請求項1乃至請求項4のいずれかに記載の流路プレート。
- 前記電極及び前記電極取り出し部は、カーボンを含有した導電性ペーストの印刷によって形成されていることを特徴とする請求項1乃至請求項5のいずれかに記載の流路プレート。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15743160.2A EP3100783A4 (en) | 2014-01-31 | 2015-01-21 | Flow channel plate |
JP2015559887A JP6266658B2 (ja) | 2014-01-31 | 2015-01-21 | 流路プレート |
US15/219,689 US20160332898A1 (en) | 2014-01-31 | 2016-07-26 | Flow channel plate |
Applications Claiming Priority (2)
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JP2014-016538 | 2014-01-31 | ||
JP2014016538 | 2014-01-31 |
Related Child Applications (1)
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US15/219,689 Continuation US20160332898A1 (en) | 2014-01-31 | 2016-07-26 | Flow channel plate |
Publications (1)
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WO2015115272A1 true WO2015115272A1 (ja) | 2015-08-06 |
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ID=53756849
Family Applications (1)
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PCT/JP2015/051540 WO2015115272A1 (ja) | 2014-01-31 | 2015-01-21 | 流路プレート |
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US (1) | US20160332898A1 (ja) |
EP (1) | EP3100783A4 (ja) |
JP (1) | JP6266658B2 (ja) |
WO (1) | WO2015115272A1 (ja) |
Cited By (2)
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JP2020505621A (ja) * | 2017-01-24 | 2020-02-20 | クヮンジュ・インスティテュート・オブ・サイエンス・アンド・テクノロジー | ヘリンボーンタイプ流体誘導ユニット及びこれを利用した流体濃縮装置 |
CN113005036A (zh) * | 2021-03-29 | 2021-06-22 | 厦门大学 | 一种产生扰流的可拆卸式细胞培养流动腔室 |
Families Citing this family (1)
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KR102002936B1 (ko) * | 2018-12-13 | 2019-10-01 | 더블유워터주식회사 | 자화활수기 |
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- 2015-01-21 WO PCT/JP2015/051540 patent/WO2015115272A1/ja active Application Filing
- 2015-01-21 EP EP15743160.2A patent/EP3100783A4/en not_active Withdrawn
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- 2016-07-26 US US15/219,689 patent/US20160332898A1/en not_active Abandoned
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JPWO2015115272A1 (ja) | 2017-03-23 |
EP3100783A1 (en) | 2016-12-07 |
EP3100783A4 (en) | 2017-09-27 |
JP6266658B2 (ja) | 2018-01-24 |
US20160332898A1 (en) | 2016-11-17 |
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