JP7001948B2 - Conductive polymer electrode and method for manufacturing conductive polymer electrode - Google Patents

Description

The present invention relates to a conductive polymer electrode and a method for manufacturing the conductive polymer electrode.

Bioelectrodes are used for the purpose of stably and efficiently acquiring weak biological signals in the body. In order to efficiently acquire biological signals, it is necessary to reduce the combined resistance between the biological body and the biological electrode. Synthetic resistance is greatly affected by the resistance component of the skin, especially the stratum corneum of the epidermis. Reducing the resistance of the stratum corneum is extremely important for bioelectrodes, as the stratum corneum of the epidermis exhibits insulating properties, especially in the dry state. In addition, the surface of the skin is usually uneven, and the skin is deformed or vibrated with body movement. Therefore, in order to reduce the synthetic resistance, it is also important that the electrode surface comes into contact with the skin at as many points as possible and in a wide area to stabilize the contact state between the skin and the bioelectrode.

As a method of reducing the synthetic resistance between the living body and the biological electrode, a method of filling the space between the electrode and the skin with a liquid or cream-like electrolyte solution, a conductive gel, or the like, or a method of bringing the electrode into close contact with the skin with an adhesive material. There is. However, these methods are prone to hemorrhoids, redness, contact dermatitis, skin infections such as bacteria, and the like.

As a bioelectrode, a cloth-like bioelectrode made of a conductive metal-coated yarn such as a silver thread is known, and is mainly used for heart rate measurement in the sports field. However, since the metal-coated yarn is hard, the contact with the skin that is flexible, deformed, and vibrates tends to be unstable due to point contact. Further, since the metal-coated yarn is hydrophobic, the skin tends to dry easily, and the synthetic resistance between the bioelectrode and the skin tends to increase due to the increase in the impedance of the stratum corneum. Therefore, noise is likely to be generated, the biological signal is attenuated, and the signal-to-noise ratio is likely to decrease, which is a major obstacle in long-term measurement of the biological signal.

Patent Document 1 discloses a conductive polymer electrode in which a fiber sheet made of ultrafine fibers such as polyester nanofibers is impregnated with PEDOT-PSS as a conductive polymer and immobilized as a bioelectrode. The conductive polymer electrode has excellent moisturizing properties and easily retains water in the stratum corneum in a stable manner. In addition, because of its excellent flexibility, the electrode and the skin are in multi-point contact, and the adhesion is excellent, and the combined resistance between the electrode and the skin is reduced.

International Publication No. 2013/073763

However, the conductive polymer electrode as in Patent Document 1 tends to be inferior in air permeability and texture as compared with the bioelectrode using general fibers. Especially in the long-term measurement of biological signals, in addition to excellent adhesion to the skin, excellent breathability that does not interfere with sweating and evaporation of water, which are physiological phenomena of the skin, and discomfort when wearing electrodes are exhibited. Good texture to reduce is important.

Fire resistance is required for clothing that requires fire resistance and heat resistance, especially clothing for special environments such as fire fighting activities, blast furnace work, and automobile racing. In addition to these clothing items, durability is also important for work clothes, exercise clothes and underwear. In particular, in machine washing at a factory, strong mechanical stress is applied to the fibers due to high temperature and high speed washing, so that the fibers are easily worn or damaged, and excellent durability is required. Ultrafine fibers such as polyester nanofibers have a low melting point and ignition point, and it is difficult to obtain excellent flame retardancy and durability. For applications where flame retardancy is required, polyimide fibers having a relatively high melting point and ignition point, and in some cases, natural fibers such as cotton are used. However, the flame-retardant fiber material is not suitable for making ultrafine fibers due to restrictions such as workability and strength, and is considered to be a fiber having a fiber diameter of about several tens of μm in terms of durability. Especially when such a fiber having a normal fiber diameter is used, it is difficult to obtain a bioelectrode having adhesion to the skin, breathability, texture and the like.

It is an object of the present invention to provide a conductive polymer electrode having excellent adhesion to the skin and the like, having excellent breathability, and having a good texture, and a method for producing the conductive polymer electrode. ..

The conductive polymer electrode of the present invention is immobilized in a state where the fiber sheet is impregnated with the conductive polymer, and the conductivity is gradually or gradually increased from the first surface to the second surface in the thickness direction. The density of the conductive polymer is reduced, and the conductive polymer is immobilized up to the fiber surface on the second surface side. As a result, it is possible to obtain excellent breathability and good texture while ensuring excellent adhesion to the skin and the like.

In the conductive polymer electrode of the present invention, it is preferable that the conductive polymer is immobilized on the fiber sheet with a binder resin. This makes it easy to firmly immobilize the conductive polymer in a state of being unevenly distributed in the thickness direction of the fiber sheet.

In the conductive polymer electrode of the present invention, the binder resin is preferably a thermosetting resin or a photocurable resin. By using a thermosetting resin or a photocurable resin as the binder resin, it becomes easy to unevenly distribute and immobilize the conductive polymer in the thickness direction of the fiber sheet.

In the method for producing a conductive polymer electrode of the present invention, the fiber sheet is impregnated with the conductive polymer so that the density gradually or gradually decreases from the first surface to the second surface in the thickness direction. This is a method of immobilizing the conductive polymer on the fiber sheet. As a result, a conductive polymer electrode having excellent adhesion to the skin or the like, excellent breathability, and a good texture can be obtained.

In the method for producing a conductive polymer electrode of the present invention, the fiber sheet is impregnated with a conductive composition containing the conductive polymer and a thermosetting resin, and heated from one direction on the first surface side. The thermosetting resin is cured to fix the conductive polymer on the fiber sheet, and heating from the one direction gradually or gradually increases from the first surface to the second surface in the thickness direction. It is preferable to gradually reduce the density of the conductive polymer. As a result, a conductive polymer electrode in which the conductive polymer is unevenly distributed in the thickness direction of the fiber sheet can be easily obtained.

In the method for producing a conductive polymer electrode of the present invention, the fiber sheet is impregnated with a conductive composition containing the conductive polymer and a photocurable resin, and light is irradiated from one direction on the first surface side. The photocurable resin is cured to immobilize the conductive polymer on the fiber sheet, and by irradiation with light from the one direction, steps are taken from the first surface to the second surface in the thickness direction. It is preferable to reduce the density of the conductive polymer targetly or gradually. As a result, a conductive polymer electrode in which the conductive polymer is unevenly distributed in the thickness direction of the fiber sheet can be easily obtained.

The conductive polymer electrode of the present invention ensures excellent adhesion to the skin and the like, has excellent breathability, and has a good texture.
According to the method for producing a conductive polymer electrode of the present invention, a conductive polymer electrode having excellent adhesion to skin or the like, excellent air permeability, and a good texture can be obtained.

It is sectional drawing which showed an example of the conductive polymer electrode of this invention. It is sectional drawing which showed one step of the manufacturing method of the conductive polymer electrode of this invention. It is sectional drawing which showed one step of the manufacturing method of the conductive polymer electrode of this invention.

[Conductive polymer electrode]
Hereinafter, the conductive polymer electrode of the present invention will be described with reference to an example. It should be noted that the dimensions and the like of the figures exemplified in the following description are examples, and the present invention is not necessarily limited to them, and the present invention can be appropriately modified without changing the gist thereof. ..

As shown in FIG. 1, the conductive polymer electrode 1 of the present embodiment is immobilized by impregnating a fiber sheet 10 made of fibers 12 with a conductive composition 14 containing a conductive polymer. It is formed. In the conductive polymer electrode 1, the first surface 1a is a contact surface that comes into contact with the skin or the like.
The shape and size of the conductive polymer electrode 1 in a plan view are not particularly limited, and can be appropriately designed according to the intended use.

The fiber 12 constituting the fiber sheet 10 is not particularly limited, and synthetic fibers, vegetable fibers, and animal fibers can be exemplified. The fiber 12 forming the fiber sheet 10 may be one type or two or more types.

Examples of the synthetic fiber include nylon fiber, polyester fiber, acrylic fiber, aramid fiber, polyurethane fiber, and carbon fiber.
Examples of vegetable fibers include cotton, hemp, and jute.
Examples of animal fibers include silk, wool, collagen, and elastic fibers constituting animal tissues.

The diameter (thickness) of the fiber 12 is not particularly limited and can be appropriately selected depending on the intended use, and can be, for example, 0.1 μm to 5 mm. When the conductive polymer electrode 1 is used as a bioelectrode, the diameter of the fiber 12 is preferably 1 μm to 1000 μm.
The length of the fiber 12 is not particularly limited and can be appropriately selected depending on the intended use, and can be, for example, 1 mm to 100 m.

The form of the fiber sheet 10 is not particularly limited, and examples thereof include a cloth and a band. The fabric may be a woven fabric (fabric) or a non-woven fabric.
The thickness of the fiber sheet 10 is not particularly limited and can be appropriately selected depending on the intended use, and can be, for example, 1 μm to 100 mm.

The conductive composition 14 of this example contains a conductive polymer and a binder resin. In the conductive polymer electrode 1, the conductive polymer is adhered to and immobilized on the fiber sheet 10 by a binder resin impregnated in the fiber sheet 10. In the present invention, it is preferable that the conductive polymer is immobilized on the fiber sheet with the binder resin in this way. By using the binder resin, it becomes easy to firmly immobilize the conductive polymer on the fiber sheet. In addition, wear resistance, peel resistance, water resistance, chemical resistance and mechanical strength are improved.

The conductive polymer is not particularly limited, and is a polythiophene-based polymer such as PEDOT (poly (3,4-ethylenedioxythiophene)), polypyrrole, polyaniline, polyacetylene, polyparaphenylene, polyparaphenylene vinylene, etc. Examples thereof include polyfluorene and the like. As the conductive polymer, one type may be used alone, or two or more types may be used in combination.

The conductive polymer may contain a dopant agent.
The dopant agent is not particularly limited, and examples of the electron acceptor include halogens such as bromine and iodine, Lewis acids such as PF ₅ , BF ₃ , SO ₃ , and protonic acids such as H ₂ SO ₄ , HClO ₄ . Can be done. Examples of the polymer dopant include polystyrene sulfonic acid (PSS) and the like. Examples of the electron donor include alkali metals and alkaline earth metals.

As the conductive polymer, PEDOT-PSS is preferable because it is excellent in hydrophilicity and flexibility. By using PEDOT-PSS, a conductive polymer electrode having excellent moisturizing property that stably retains water in the stratum corneum on the skin surface and excellent adhesion to the skin etc. when used as a bioelectrode can be obtained. It will be easier to get rid of.

The molecular weight of the conductive polymer is not particularly limited, and for example, the molecular weight can be in the range of several thousand to several hundred thousand. The styrene-equivalent polymerization average molecular weight (Mw) of the conductive polymer is not particularly limited, and can be, for example, 1000 to 900,000, 3000 to 450,000, or 5000 to 50,000.

The binder resin may be a resin that can adhere and immobilize the conductive polymer to the fibers 12 of the fiber sheet 10 without deactivating the conductivity of the conductive polymer, and may be a thermosetting resin or photocurable. A sex resin is preferable. The thermosetting resin or the photocurable resin in the conductive polymer electrode exists in a cured state. As the binder resin, one type may be used alone, or two or more types may be used in combination.

Examples of the thermosetting resin include phenol resin, urea resin, melamine resin, unsaturated polyester resin, epoxy resin, and silicon resin.
Examples of the photocurable resin include an epoxy acrylate type, an acrylic epoxy cationic polymerization type, and a photosensitive polyimide.

The amount of the conductive composition 14 impregnated in the fiber sheet 10 is preferably 0.01 ml to 10 ml, more preferably 0.1 ml to 1 ml, with respect to the unit area per 1 cm ² of the fiber sheet 10. When the impregnation amount of the conductive composition 14 is at least the lower limit of the above range, excellent conductivity can be easily obtained. When the impregnation amount of the conductive composition 14 is not more than the upper limit of the above range, excellent air permeability and texture can be easily obtained.

The content of the conductive polymer in the conductive composition is preferably 0.1 to 10% by mass, more preferably 0.5 to 2% by mass, based on the total mass of the conductive composition. When the content of the conductive polymer is at least the lower limit of the above range, sufficient conductivity can be easily obtained. When the content of the conductive polymer is not more than the upper limit of the above range, the content of the resin binder can be relatively increased, the falling of the conductive polymer is easily suppressed, and the durability is improved. ..

The content of the resin binder in the conductive composition is preferably 0.1 to 10% by mass, more preferably 1 to 4% by mass, based on the total mass of the conductive composition. When the content of the resin binder is at least the lower limit of the above range, the conductive polymer is likely to be suppressed from falling off, and the durability is improved. When the content of the resin binder is not more than the upper limit of the above range, the content of the conductive polymer can be relatively increased, and the conductivity is improved.

The total content of the conductive polymer and the binder resin in the conductive composition is preferably 1 to 100% by mass, more preferably 10 to 100% by mass, and 25 to 25 to the total mass of the conductive composition. 100% by mass is more preferable. When the total content of the conductive polymer and the binder resin is at least the lower limit of the above range, the durability and the conductivity are improved.

The mass ratio of the binder resin to the conductive polymer in the conductive composition is preferably 1: 0.5 to 1: 5, and more preferably 1: 1 to 1: 2. When the mass ratio is within the above range, it is easy to achieve both excellent durability and conductivity.

The conductive composition 14 may contain components other than the conductive polymer and the binder resin, if necessary. Examples of other components include additives such as glycerol, sorbitol, polyethylene glycol-polypropylene glycol copolymer, ethylene glycol, sphingosine, and phosphatidylcholine. When these additives are used, the wettability, flexibility, affinity with the skin when used as a bioelectrode, and the like are improved. As the additive, one type may be used alone, or two or more types may be used in combination.

As the additive, a surfactant, alcohol, natural polysaccharide, sugar alcohol, acrylic resin and the like can also be used.
Examples of the surfactant include a cationic surfactant, an anionic surfactant, and a nonionic surfactant. As the surfactant, one type may be used alone, or two or more types may be used in combination.

Examples of the cationic surfactant include a quaternary alkylammonium salt and an alkylpyridinium halide.
Examples of the anionic surfactant include alkyl sulfates, alkylbenzene sulfonates, alkyl sulfosuccinates, and fatty acid salts.
Examples of the nonionic surfactant include polyoxyethylene and polyoxyethylene alkyl ether.

The alcohol may be a monohydric alcohol or a polyhydric alcohol. As the alcohol, one type may be used alone, or two or more types may be used in combination.
Examples of the monohydric alcohol include methanol, ethanol, propyl alcohol, isopropyl alcohol, and butanol.
Examples of the polyhydric alcohol include glycols such as ethylene glycol, chain polyhydric alcohols such as glycerin, cyclic polyhydric alcohols such as glucose and sucrose, and polymer polyhydric alcohols such as polyethylene glycol, polyvinyl alcohol, polyethylene glycol, and polypropylene glycol copolymer. Alcohol can be exemplified.

Examples of natural polysaccharides include chitosan, chitin, glucose, and aminoglycan.
Examples of the sugar alcohol include sorbitol, xylitol, and erythritol.
Examples of the acrylic resin include polyacrylate and polymethylmethacrylate.

In the conductive polymer electrode 1, the conductive composition 14 is unevenly distributed in the thickness direction, and the density of the conductive composition 14 gradually or gradually increases from the first surface 1a to the second surface 1b. It's getting smaller. As a result, in the conductive polymer electrode 1, the conductive polymer is unevenly distributed in the thickness direction, and the density of the conductive polymer gradually or gradually increases from the first surface 1a to the second surface 1b. It is getting smaller. As described above, in the conductive polymer electrode 1, the conductive polymer is unevenly distributed on the portion on the first surface 1a side, which is the contact surface in contact with the skin or the like.

Since the first surface 1a of the conductive polymer electrode 1 is appropriately smoothed by filling the voids between the fibers 12 due to the uneven distribution of the conductive composition 14, there is a lot of contact with the skin and the like. It becomes point contact and excellent adhesion to the skin etc. is ensured. In addition, excellent conductivity is ensured due to the uneven distribution of the conductive polymer, and even a weak biological signal can be efficiently acquired. Further, since the density of the conductive composition 14 is low in the portion of the conductive polymer electrode 1 on the second surface 1b side, the air permeability is excellent and the texture is also good.

The conductive polymer may be unevenly distributed so that the density gradually decreases from the first surface a to the second surface 1b of the conductive polymer electrode 1, and the conductive polymer may be unevenly distributed from the first surface a to the second surface. It may be unevenly distributed so that the density gradually decreases toward the surface 1b. Above all, from the viewpoint of maintaining the texture while reducing the contact resistance of the bioelectrode, the conductive polymer is such that the density decreases sharply from the first surface a to the second surface 1b of the conductive polymer electrode 1. Is preferably unevenly distributed.

In the conventional conductive polymer electrode, the fiber sheet is uniformly impregnated with the conductive polymer in the thickness direction and immobilized, so that sufficient air permeability is difficult to obtain and the texture tends to be inferior. rice field.
On the other hand, as described above, in the present invention, in the thickness direction of the conductive polymer electrode, the density of the conductive polymer gradually or gradually decreases from the first surface to the second surface. The conductive polymer is unevenly distributed. Since the density of the conductive composition is low in the portion on the second surface side of the conductive polymer electrode, excellent air permeability can be obtained and the texture is also good. Further, the first surface is appropriately smoothed by sufficiently filling the voids between the fibers with the conductive composition, so that the contact state with the skin or the like becomes multipoint contact and becomes stable. As a result, when used as a bioelectrode, the combined resistance between the electrode and the skin can be reduced, and the signal-to-noise ratio is improved.

Examples of applications of the conductive polymer electrode of the present invention include bioelectrodes, electrodes for drug delivery systems, antistatic coatings, touch panel operating tools, and electrodes for various sensors. The conductive polymer electrode of the present invention secures a stable contact state with respect to the skin where deformation and vibration occur, can reduce the synthetic resistance between the skin and the electrode, has excellent breathability, and causes skin sweating and moisture. It is particularly effective as a biological electrode used for long-term measurement of biological signals because it does not interfere with the evaporation of the material and has a good texture and can reduce discomfort when the electrode is attached.

The conductive polymer electrode of the present invention is not limited to the above-mentioned conductive polymer electrode 1. For example, the conductive polymer electrode of the present invention may be one in which a conductive polymer is immobilized on a fiber sheet without using a binder resin.

[Manufacturing method of conductive polymer electrode]
In the method for producing a conductive polymer electrode of the present invention, the fiber sheet is impregnated with the conductive polymer, and the density of the conductive polymer decreases from the first surface to the second surface in the thickness direction. Is a method of immobilizing the fiber sheet. The conductive polymer electrode of the present invention described above can be obtained by the method for producing a conductive polymer electrode of the present invention.
Hereinafter, as an example of the method for manufacturing the conductive polymer electrode of the present invention, the method for manufacturing the conductive polymer electrode 1 described above will be described.

In the production of the conductive polymer electrode 1, the fiber sheet 10 is first impregnated with the conductive composition 14.
The impregnation method of the conductive composition 14 is not particularly limited, and a method of impregnating the fiber sheet 10 with the conductive composition 14 by a method such as coating, printing, dipping, spraying, or dropping can be exemplified.

When the fiber sheet 10 is impregnated with the conductive composition 14, a mixed solution of water, water and alcohol (ethanol, methanol, etc.), a solvent such as dimethyl sulfoxide, acetone, etc. may be used, if necessary. As the solvent, one type may be used alone, or two or more types may be used in combination.
The conductivity, air permeability, and texture of the conductive polymer electrode 1 to be manufactured can also be adjusted by the amount of the solvent used and the amount of the conductive composition 14 added when the fiber sheet 10 is impregnated.

When a solvent is used, the amount of the solvent used is preferably 50% by mass to 99% by mass, more preferably 80% by mass to 90% by mass, based on the total mass of the reagent containing the conductive composition 14. When the amount of the solvent used is not less than the lower limit of the above range, the aggregation of the conductive polymer is suppressed. When the amount of the solvent used is not more than the upper limit of the above range, the content of the conductive polymer can be relatively increased, and the conductivity is improved.

The amount of the conductive composition 14 added when the fiber sheet 10 is impregnated is preferably 0.01 ml to 10 ml, more preferably 0.1 ml to 1 ml, with respect to the unit area per 1 cm ² of the fiber sheet 10. When the amount of the conductive composition 14 added is not less than the lower limit of the above range, excellent conductivity can be easily obtained. When the amount of the conductive composition 14 added is not more than the upper limit of the above range, excellent air permeability and texture can be easily obtained.

After impregnating the fiber sheet 10 with the conductive composition 14, the conductive composition 14 is immobilized on the fiber sheet 10 so that the density decreases from the first surface to the second surface in the thickness direction.

When a thermosetting resin is used as the binder resin, for example, the thermosetting resin is cured by heating from one direction on the surface side of the conductive polymer electrode 1 which is the first surface 1a. The method for heating the fiber sheet 10 impregnated with the conductive composition 14 is not particularly limited, and examples thereof include a method using a heating press machine.

For example, as shown in FIG. 2, while running a long impregnated sheet 20 in which a fiber sheet is impregnated with a conductive composition in one direction, a heating roller 30 having a heating mechanism 31 and a cooling roller having a cooling mechanism 41 are run. It is continuously sandwiched by 40 and pressed in the thickness direction. The heating roller 30 is arranged on the surface side of the impregnated sheet 20 which is the first surface 1a of the conductive polymer electrode 1, and the cooling roller is arranged on the opposite surface side.

As a result, a heat gradient is formed in the thickness direction of the fiber sheet 10, and the heat gradient cures more thermosetting resin faster on the heating roller 30 side (heating side), and more conductivity faster. The polymer is immobilized. Therefore, on the first surface 1a side of the obtained conductive polymer electrode 1, the voids between the fibers 12 are filled with the conductive composition 14 and smoothed. On the other hand, on the cooling roller 40 side (non-heating side), the curing of the thermosetting resin is slower than that on the heating side, the immobilization of the conductive polymer is delayed, and the voids between the fibers 12 are not sufficiently filled and remain. Therefore, the density of the conductive polymer is low in the portion of the obtained conductive polymer electrode 1 on the second surface 1b side. In this way, the conductive composition 14 is immobilized on the fiber sheet 10 in a state of being unevenly distributed so that the density decreases from the first surface to the second surface in the thickness direction.

The heating mechanism 31 is not particularly limited, and a known heater can be used.
The cooling mechanism 41 is not particularly limited, and examples thereof include a mechanism for circulating and cooling cooling water, a radiator type heat radiating mechanism, and a mechanism for cooling by blowing air.

Further, as shown in FIG. 3, a separator film 50 may be inserted between the pressed surface of the heating roller 30 and the impregnated sheet 20 and between the pressed surface of the cooling roller 40 and the impregnated sheet 20. By inserting the separator film 50, it becomes easy to prevent the conductive composition from adhering to the pressed surface of the heating roller 30 and the pressed surface of the cooling roller 40.
The separator film 50 may be any one having heat resistance and peelability, and examples thereof include a polyimide sheet and paper or cloth whose surface is treated with silicone.
Instead of the cooling roller 40, a roller having no cooling mechanism may be used to dissipate heat naturally.

The conductivity, air permeability and texture of the conductive polymer electrode 1 can be adjusted by the press pressure, the heating temperature, and the heating amount.

The heating temperature is preferably 50 to 200 ° C, more preferably 100 to 150 ° C. When the heating temperature is equal to or higher than the lower limit of the above range, the fixation of the conductive polymer is stabilized. When the heating temperature is not more than the upper limit of the above range, deterioration of the conductive polymer due to heat can be prevented.

When a photocurable resin is used as the binder resin, for example, the photocurable resin is cured by irradiating UV light or the like from one direction on the surface side of the conductive polymer electrode 1 which is the first surface 1a. As a result, more photocurable resins are cured faster on the light irradiation side, and more conductive polymers are unevenly distributed and immobilized faster. Therefore, the voids between the fibers 12 are filled on the first surface 1a side of the obtained conductive polymer electrode 1 and are appropriately smoothed. On the other hand, on the side opposite to the light irradiation side (non-light irradiation side), the curing of the photocurable resin is slower than that on the light irradiation side, and the immobilization of the conductive polymer is delayed. Therefore, the density of the conductive polymer is low on the second surface 1b side of the obtained conductive polymer electrode 1.

Further, the conductive polymer may be unevenly distributed and immobilized without using the binder resin. For example, the current density on the surface of the fiber sheet is controlled by a method of electrolyzing a conductive polymer collected at a specific electrode (for example, a cathode) to polymerize and immobilize it, or by adjusting the shape of an electrode and the conductive composition. Then, an electrolytic polymerization method for promoting immobilization may be used. Further, the immobilization method using a binder resin may be combined with an electrolytic polymerization method or an electrochemical immobilization method.

According to the manufacturing method of the present invention described above, the conductive polymer is unevenly distributed so that the density decreases from the first surface to the second surface, so that the skin or the like on the first surface side is formed. A conductive polymer electrode having excellent adhesion and conductivity, and excellent breathability and texture can be obtained.

The method for manufacturing the conductive polymer electrode of the present invention is not limited to the above-mentioned method. For example, the method of pressing the impregnated sheet is not limited to the method using a roll, and may be, for example, a method using a press machine provided with a pair of plates.

1 ... Conductive polymer electrode, 1a ... 1st surface, 1b ... 2nd surface, 10 ... Fiber sheet, 12 ... Fiber, 14 ... Conductive composition, 20 ... Impregnated sheet, 30 ... Heating roller, 31 ... Heating mechanism , 40 ...
Cooling roller, 41 ... Cooling mechanism, 50 ... Separator film.

Claims (3)

The fiber sheet is immobilized in a state of being impregnated with the conductive polymer, and the density of the conductive polymer gradually or gradually decreases from the first surface to the second surface in the thickness direction. A conductive polymer electrode in which the conductive polymer is immobilized up to the fiber surface on the second surface side. The fiber sheet is impregnated with a conductive composition containing a conductive polymer and a thermosetting resin, and heated from one direction on the first surface side in the thickness direction to cure the thermosetting resin to have high conductivity. The molecule is immobilized on the fiber sheet,
A method for manufacturing a conductive polymer electrode, which gradually or gradually reduces the density of the conductive polymer from the first surface to the second surface in the thickness direction by heating from the one direction. The fiber sheet is impregnated with a conductive composition containing a conductive polymer and a photocurable resin, and light is irradiated from one direction on the first surface side in the thickness direction to cure the photocurable resin to cure the conductive resin. The polymer is immobilized on the fiber sheet,
Further, a method for manufacturing a conductive polymer electrode, which gradually or gradually reduces the density of the conductive polymer from the first surface to the second surface in the thickness direction by irradiating light from the one direction. ..

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