CN116259436A - Silver-carbon-silver chloride slurry and application thereof - Google Patents
Silver-carbon-silver chloride slurry and application thereof Download PDFInfo
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- CN116259436A CN116259436A CN202310251215.XA CN202310251215A CN116259436A CN 116259436 A CN116259436 A CN 116259436A CN 202310251215 A CN202310251215 A CN 202310251215A CN 116259436 A CN116259436 A CN 116259436A
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- silver chloride
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- GJAJGQCIFNHMBS-UHFFFAOYSA-M [Ag]Cl.[C].[Ag] Chemical compound [Ag]Cl.[C].[Ag] GJAJGQCIFNHMBS-UHFFFAOYSA-M 0.000 title abstract description 44
- 239000002002 slurry Substances 0.000 title abstract description 41
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 20
- 229910021392 nanocarbon Inorganic materials 0.000 abstract description 19
- 229910021607 Silver chloride Inorganic materials 0.000 abstract description 18
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 abstract description 18
- 239000003575 carbonaceous material Substances 0.000 abstract description 14
- 239000000843 powder Substances 0.000 abstract description 14
- 238000001514 detection method Methods 0.000 abstract description 13
- 239000000463 material Substances 0.000 abstract description 6
- 229910052709 silver Inorganic materials 0.000 abstract description 5
- 239000004332 silver Substances 0.000 abstract description 5
- 239000004020 conductor Substances 0.000 abstract description 4
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 229920000642 polymer Polymers 0.000 description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 9
- 239000002245 particle Substances 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- 239000002270 dispersing agent Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 239000003960 organic solvent Substances 0.000 description 6
- 239000012752 auxiliary agent Substances 0.000 description 5
- 239000002518 antifoaming agent Substances 0.000 description 4
- 239000013530 defoamer Substances 0.000 description 4
- -1 alkylaryl phosphate Chemical compound 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 description 2
- CUDYYMUUJHLCGZ-UHFFFAOYSA-N 2-(2-methoxypropoxy)propan-1-ol Chemical compound COC(C)COC(C)CO CUDYYMUUJHLCGZ-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- 229910021393 carbon nanotube Inorganic materials 0.000 description 2
- 239000002041 carbon nanotube Substances 0.000 description 2
- GTKRFUAGOKINCA-UHFFFAOYSA-M chlorosilver;silver Chemical compound [Ag].[Ag]Cl GTKRFUAGOKINCA-UHFFFAOYSA-M 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 229910021389 graphene Inorganic materials 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- OJURWUUOVGOHJZ-UHFFFAOYSA-N methyl 2-[(2-acetyloxyphenyl)methyl-[2-[(2-acetyloxyphenyl)methyl-(2-methoxy-2-oxoethyl)amino]ethyl]amino]acetate Chemical compound C=1C=CC=C(OC(C)=O)C=1CN(CC(=O)OC)CCN(CC(=O)OC)CC1=CC=CC=C1OC(C)=O OJURWUUOVGOHJZ-UHFFFAOYSA-N 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 2
- 238000007650 screen-printing Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical compound OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000003759 clinical diagnosis Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002964 excitative effect Effects 0.000 description 1
- 208000019622 heart disease Diseases 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- DXDHTWPMNOEUAK-UHFFFAOYSA-N octadecanamide;hydrochloride Chemical compound Cl.CCCCCCCCCCCCCCCCCC(N)=O DXDHTWPMNOEUAK-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/22—Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/25—Bioelectric electrodes therefor
- A61B5/263—Bioelectric electrodes therefor characterised by the electrode materials
- A61B5/265—Bioelectric electrodes therefor characterised by the electrode materials containing silver or silver chloride
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/25—Bioelectric electrodes therefor
- A61B5/263—Bioelectric electrodes therefor characterised by the electrode materials
- A61B5/268—Bioelectric electrodes therefor characterised by the electrode materials containing conductive polymers, e.g. PEDOT:PSS polymers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/25—Bioelectric electrodes therefor
- A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
- A61B5/28—Bioelectric electrodes therefor specially adapted for particular uses for electrocardiography [ECG]
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/24—Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Medical Informatics (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biophysics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- Cardiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
The invention provides silver-carbon-silver chloride slurry and application thereof, and relates to the technical fields of biosensor reference electrodes and electrocardio electrodes. The invention adopts the low-price nano carbon conductive material to replace a part of expensive silver/silver chloride material, the current price of silver powder and silver chloride powder is 5000-6000 yuan/kg, the cost of the nano carbon material is 40-80 yuan/kg, and the cost is greatly reduced (the cost is reduced by about 30-40 percent); because the carbon material has oxidation resistance, the service life and stability of the detection electrode are improved. And the invention controls the reasonable proportion of the silver-carbon-silver chloride slurry, so that the prepared electrocardio-detecting electrode has low alternating current impedance and high signal-to-noise ratio.
Description
Technical Field
The invention relates to the technical field of biosensor reference electrodes and electrocardio electrodes, in particular to silver-carbon-silver chloride slurry and application thereof.
Background
Bioelectric measurement and record of different parts of human body can reflect the excitatory change of the corresponding parts, and is an important basis for clinical diagnosis. Measurement and recording of electrocardiographic changes is a major means of diagnosing heart diseases in modern medicine. The collection of electrocardiosignals also needs to use a medical detection electrode, and the silver/silver chloride electrode is a non-polarized electrode, so that the ion flow on the surface of a living body can be effectively converted into an electric signal, and the requirements of the biomedical detection electrode on good conductivity, strong stability, small potential fluctuation, small polarized potential and the like are met, and the electrocardiosignal detection electrode is commonly used for bioelectric signal detection.
The medical detection electrode in the current market is prepared by printing silver-silver chloride slurry on a flexible substrate, and the alternating current impedance is required to be within 1000 omega. However, ag in the existing silver-silver chloride slurry is easily oxidized when exposed to air, so that the alternating current impedance of the detection electrode becomes large, the service life and stability of the detection electrode are affected, and the silver powder and silver chloride powder are high in price.
Disclosure of Invention
The invention aims to provide silver-carbon-silver chloride slurry and application thereof, and an electrocardiograph detection electrode prepared from the silver-carbon-silver chloride slurry has low alternating current impedance, good oxidation resistance and low cost.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides silver-carbon-silver chloride slurry, which comprises silver powder, silver chloride powder, a nano carbon material, a polymer and an organic solvent; the mass ratio of the silver powder in the silver-carbon-silver chloride slurry is 15-35%; the mass ratio of the silver chloride powder in the silver-carbon-silver chloride slurry is 5-15%; the mass ratio of the nano carbon material in the silver-carbon-silver chloride slurry is 20-30%; the mass ratio of the polymer in the silver-carbon-silver chloride slurry is 5-10%.
Preferably, the composition further comprises an auxiliary agent; the auxiliary agent comprises one or more of dispersing agent, defoaming agent and leveling agent.
Preferably, the mass ratio of the dispersing agent in the silver-carbon-silver chloride slurry is 0-0.2%; the mass ratio of the defoaming agent in the silver-carbon-silver chloride slurry is 0-0.5%; the mass ratio of the leveling agent in the silver-carbon-silver chloride slurry is 0-0.3%.
Preferably, the polymer comprises one or more of polyurethane, acrylate, epoxy and polyester.
Preferably, the nano carbon material comprises one or more of carbon powder, graphite, carbon nanotubes and graphene.
Preferably, the particle size of the nano carbon material is 1-50 nm.
Preferably, the particle size of the silver powder is 0.1 to 10 μm.
Preferably, the particle size of the silver chloride powder is 0.1 to 10 μm.
Preferably, the organic solvent comprises one or more of dimethyl ester, propylene glycol methyl ether acetate, dipropylene glycol methyl ether and diethylene glycol butyl ether.
The invention provides application of the silver-carbon-silver chloride slurry in preparation of a reference electrode or an electrocardiograph detection electrode.
The invention adopts the low-price nano carbon conductive material to replace a part of expensive silver/silver chloride material, the current price of silver powder and silver chloride powder is 5000-6000 yuan/kg, the cost of the nano carbon material is 40-80 yuan/kg, and the cost is greatly reduced (the cost is reduced by 30-40 percent); because the carbon material has oxidation resistance, the service life and stability of the detection electrode are improved. And the invention controls the reasonable proportion of the silver-carbon-silver chloride slurry, so that the prepared electrocardio-detecting electrode has low alternating current impedance and high signal-to-noise ratio.
Detailed Description
The invention provides silver-carbon-silver chloride slurry, which comprises silver powder, silver chloride powder, a nano carbon material, a polymer and an organic solvent; the mass ratio of the silver powder in the silver-carbon-silver chloride slurry is 15-35%; the mass ratio of the silver chloride powder in the silver-carbon-silver chloride slurry is 5-15%; the mass ratio of the nano carbon material in the silver-carbon-silver chloride slurry is 20-30%; the mass ratio of the polymer in the silver-carbon-silver chloride slurry is 5-10%.
The silver-carbon-silver chloride slurry provided by the invention comprises 15-35% of silver powder, preferably 18-30% of silver powder, and more preferably 20-25% of silver powder. In the present invention, the particle diameter of the silver powder is preferably 0.1 to 10. Mu.m, more preferably 1 to 9. Mu.m, still more preferably 2 to 7. Mu.m.
The silver-carbon-silver chloride slurry provided by the invention comprises 5-15% of silver chloride powder, preferably 7-13%, and more preferably 9-11% by mass. In the present invention, the particle diameter of the silver chloride powder is preferably 0.1 to 10. Mu.m, more preferably 1 to 9. Mu.m, still more preferably 3 to 7. Mu.m.
The silver-carbon-silver chloride slurry provided by the invention comprises 20-30% of nano carbon material, preferably 22-28%, more preferably 24-26% by mass. In the present invention, the particle diameter of the nanocarbon material is preferably 1 to 50nm, more preferably 10 to 40nm, and even more preferably 20 to 30nm. In the present invention, the nanocarbon material preferably includes one or more of carbon powder, graphite, carbon nanotube and graphene, and more preferably is nanocarbon powder.
The silver-carbon-silver chloride slurry provided by the invention comprises 5-10% of polymer, preferably 6-9%, and more preferably 7-8% by mass. In the present invention, the polymer preferably includes one or more of polyurethane, acrylate, epoxy, and polyester. In the present invention, the polymer functions as a binder, functions as a bridge connection, and provides excellent adhesion to adhere the silver-carbon-silver chloride paste to the electrode substrate.
The silver-carbon-silver chloride paste provided by the invention preferably comprises an auxiliary agent. In the present invention, the auxiliary agent preferably includes one or more of a dispersant, a defoaming agent, and a leveling agent.
In the invention, the dispersing agent is preferably one or more of alkylaryl phosphate, alkylbenzene sulfonate, dialkyl sulfosuccinate, trimethyl stearamide chloride, polyoxyethylene alkylphenol ether and sorbitol alkylate; the mass ratio of the dispersing agent in the silver-carbon-silver chloride slurry is 0-0.2%. In the present invention, the dispersant functions to uniformly disperse the components.
The invention has no special requirement on the specific type of the defoamer, and the defoamer well known in the field is adopted, such as a polymer defoamer BYK052N; in the present invention, the mass ratio of the antifoaming agent in the silver-carbon-silver chloride slurry is preferably 0 to 0.5%.
The invention has no special requirements on the specific type of the leveling agent, and the leveling agent well known in the art can be specific such as the organosilicon BYK333. In the invention, the mass ratio of the leveling agent in the silver-carbon-silver chloride slurry is preferably 0-0.3%.
The silver-carbon-silver chloride slurry provided by the invention comprises the balance of organic solvent. In the present invention, the organic solvent preferably includes one or more of dimethyl ester, propylene glycol methyl ether acetate, dipropylene glycol methyl ether and diethylene glycol butyl ether.
In the present invention, the particle size of the silver-carbon-silver chloride paste is preferably less than 10 μm.
In the present invention, the preparation method of the silver-carbon-silver chloride paste preferably includes the steps of:
dissolving a polymer into an organic solvent to obtain a polymer solution;
mixing the polymer solution with silver powder, silver chloride powder and carbon powder (if auxiliary agents are included), and dispersing to obtain dispersed slurry;
grinding the dispersion slurry to obtain the silver-carbon-silver chloride slurry.
In the present invention, the dissolution temperature is preferably 100 ℃, and the present invention does not require any special requirement for the dissolution time, and the polymer can be completely dissolved.
In the invention, the grinding is preferably performed by a three-roller grinder, and the grinding can be performed for multiple times according to the fineness requirement until the required fineness is achieved. In the present invention, the particle size of the silver-carbon-silver chloride paste is preferably less than 10 μm.
The invention adopts the low-price nano carbon conductive material to replace part of expensive silver/silver chloride material, the current price of silver powder and silver chloride powder is 5000-6000 yuan/kg, and the cost of the nano carbon material is 40-80 yuan/kg. And the invention controls the reasonable proportion of the silver-carbon-silver chloride slurry, so that the prepared electrocardio-detecting electrode has low alternating current impedance and high signal-to-noise ratio.
The invention provides application of the silver-carbon-silver chloride slurry in preparing an electrocardiograph detection electrode. The invention has no special requirement on the preparation process of the electrocardio monitoring electrode, and the electrocardio monitoring electrode is prepared by adopting a screen printing technology well known in the field.
The silver-carbon-silver chloride paste and the use thereof according to the present invention will be described in detail with reference to examples, but they should not be construed as limiting the scope of the present invention.
The following examples and comparative examples were made using the starting materials:
the grain diameter of the silver powder is 3-6 mu m; the grain diameter of the silver chloride powder is 3-6 mu m; the grain diameter of the nano carbon material is 20-30 nm; the leveling agent is organic silicon BYK333; the defoamer is BYK052N; the dispersant is BYKW966.
Examples and comparative examples
The composition of the silver-carbon-silver chloride paste is shown in table 1.
Table 1 composition of the silver-carbon-silver chloride slurries of examples and comparative examples
Performance test:
10 electrocardio electrode plates are respectively prepared from the prepared silver-carbon-silver chloride slurry by screen printing for AC impedance test, and then the average value is taken, and the AC impedance of the obtained silver-carbon-silver chloride slurry is shown in Table 2.
Table 2 ac impedance (Ω) of examples and comparative examples
| Numbering device | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Comparative example 1 |
| 1 | 522 | 443 | 720 | 663 | 801 | 1900 |
| 2 | 545 | 451 | 756 | 650 | 799 | 1950 |
| 3 | 559 | 462 | 736 | 658 | 795 | 1930 |
| 4 | 563 | 458 | 745 | 667 | 803 | 1960 |
| 5 | 569 | 477 | 753 | 672 | 810 | 1953 |
| 6 | 528 | 435 | 761 | 664 | 796 | 1948 |
| 7 | 572 | 462 | 740 | 651 | 792 | 1956 |
| 8 | 554 | 455 | 753 | 658 | 807 | 1947 |
| 9 | 531 | 469 | 736 | 662 | 809 | 1959 |
| 10 | 557 | 461 | 734 | 659 | 804 | 1951 |
| Average value of | 550 | 457.3 | 743.4 | 660.4 | 801.6 | 1945.4 |
As can be seen from the above examples and comparative examples, the present invention replaces a part of expensive silver/silver chloride materials with low-cost nanocarbon conductive materials, and the prepared electrode sheet has low impedance, thereby completely meeting the use requirements. However, when the amount of the nano carbon material is too high, the alternating current impedance is too high, and the use requirement cannot be met.
The silver-carbon-silver chloride slurry is supplied to market companies such as English medical treatment, the impedance of the prepared electrode plate is below 1000 omega, and the performance of the electrode plate meets the use requirements of an electrocardiograph detection electrode.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (10)
1. A silver-carbon-silver chloride slurry, comprising silver powder, silver chloride powder, a nano carbon material, a polymer and an organic solvent; the mass ratio of the silver powder in the silver-carbon-silver chloride slurry is 15-35%; the mass ratio of the silver chloride powder in the silver-carbon-silver chloride slurry is 5-15%; the mass ratio of the nano carbon material in the silver-carbon-silver chloride slurry is 20-30%; the mass ratio of the polymer in the silver-carbon-silver chloride slurry is 5-10%.
2. The silver-carbon-silver chloride paste of claim 1, further comprising an auxiliary agent; the auxiliary agent comprises one or more of dispersing agent, defoaming agent and leveling agent.
3. The silver-carbon-silver chloride paste according to claim 2, wherein the mass ratio of the dispersing agent in the silver-carbon-silver chloride paste is 0-0.2%; the mass ratio of the defoaming agent in the silver-carbon-silver chloride slurry is 0-0.5%; the mass ratio of the leveling agent in the silver-carbon-silver chloride slurry is 0-0.3%.
4. The silver-carbon-silver chloride paste according to claim 1 or 2, wherein the polymer comprises one or more of polyurethane, acrylate, epoxy, and polyester.
5. The silver-carbon-silver chloride paste according to claim 1 or 2, wherein the nanocarbon material comprises one or more of carbon powder, graphite, carbon nanotubes, and graphene.
6. The silver-carbon-silver chloride paste according to claim 1, wherein the nano-carbon material has a particle size of 1 to 50nm.
7. The silver-carbon-silver chloride paste according to claim 1 or 2, wherein the particle size of the silver powder is 0.1 to 10 μm.
8. The silver-carbon-silver chloride paste according to claim 1 or 2, wherein the particle size of the silver chloride powder is 0.1 to 10 μm.
9. The silver-carbon-silver chloride paste according to claim 1 or 2, wherein the organic solvent comprises one or more of dimethyl ester, propylene glycol methyl ether acetate, dipropylene glycol methyl ether and diethylene glycol butyl ether.
10. Use of a silver-carbon-silver chloride paste according to any one of claims 1 to 9 for the preparation of a reference electrode or an electrocardiographic detection electrode.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310251215.XA CN116259436B (en) | 2023-03-16 | 2023-03-16 | Silver-carbon-silver chloride slurry and application thereof |
| NL2036069A NL2036069B1 (en) | 2023-03-16 | 2023-10-19 | Silver-carbon-silver chloride paste and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310251215.XA CN116259436B (en) | 2023-03-16 | 2023-03-16 | Silver-carbon-silver chloride slurry and application thereof |
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| Publication Number | Publication Date |
|---|---|
| CN116259436A true CN116259436A (en) | 2023-06-13 |
| CN116259436B CN116259436B (en) | 2024-10-25 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860433A (en) * | 2021-06-02 | 2021-12-31 | 哈尔滨工业大学（深圳） | Silver carbon electrode material, preparation method and application thereof |
| CN114334218A (en) * | 2021-12-23 | 2022-04-12 | 索思（苏州）医疗科技有限公司 | Silver-silver chloride slurry for flexible electrocardio detection electrode and application thereof |
| CN114496345A (en) * | 2021-12-30 | 2022-05-13 | 上海宝银电子材料有限公司 | Silver chloride conductive silver paste and preparation method thereof |
| US20220359100A1 (en) * | 2021-05-06 | 2022-11-10 | I-Sens, Inc. | Paste for reference electrode, reference electrode, and biosensor including the same |
| CN115400344A (en) * | 2021-05-26 | 2022-11-29 | 武汉格林泰克科技有限公司 | Silver-based composite bioelectricity electrode and preparation method thereof |
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| US5851438A (en) * | 1997-08-29 | 1998-12-22 | E. I. Du Pont De Nemours And Company | Thick film compositions for making medical electrodes |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20220359100A1 (en) * | 2021-05-06 | 2022-11-10 | I-Sens, Inc. | Paste for reference electrode, reference electrode, and biosensor including the same |
| CN115400344A (en) * | 2021-05-26 | 2022-11-29 | 武汉格林泰克科技有限公司 | Silver-based composite bioelectricity electrode and preparation method thereof |
| CN113860433A (en) * | 2021-06-02 | 2021-12-31 | 哈尔滨工业大学（深圳） | Silver carbon electrode material, preparation method and application thereof |
| CN114334218A (en) * | 2021-12-23 | 2022-04-12 | 索思（苏州）医疗科技有限公司 | Silver-silver chloride slurry for flexible electrocardio detection electrode and application thereof |
| CN114496345A (en) * | 2021-12-30 | 2022-05-13 | 上海宝银电子材料有限公司 | Silver chloride conductive silver paste and preparation method thereof |
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