CN110564095A - Conductive polymer material for solid electrolytic capacitor - Google Patents
Conductive polymer material for solid electrolytic capacitor Download PDFInfo
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- CN110564095A CN110564095A CN201910751363.1A CN201910751363A CN110564095A CN 110564095 A CN110564095 A CN 110564095A CN 201910751363 A CN201910751363 A CN 201910751363A CN 110564095 A CN110564095 A CN 110564095A
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- polymer material
- solid electrolytic
- conductive
- electrolytic capacitor
- grafting agent
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/24—Homopolymers or copolymers of amides or imides
- C08L33/26—Homopolymers or copolymers of acrylamide or methacrylamide
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- 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
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- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0806—Silver
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- Physics & Mathematics (AREA)
- Dispersion Chemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
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- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a conductive polymer material for a solid electrolytic capacitor, which comprises conductive polymer particles, cationic polyacrylamide, a conductive additive, a crosslinking initiation promoter, a grafting agent and conductive carbon black, wherein the conductive polymer particles are one or two of poly (3, 4-dioxyethyl thiophene) particles and polystyrene sulfonic acid particles, and the grafting agent comprises one or more of a titanate grafting agent, an aluminate grafting agent, caprolactam, succinic anhydride, maleic anhydride, succinic acid, stearic acid, zinc stearate, petroleum acid and octadecanoic acid. According to the invention, the conductivity is improved by adding the cationic polyacrylamide and the conductivity additive into the existing conductive polymer material, the safety and stability of the system are improved by adding the crosslinking initiation accelerator and the grafting agent, the stability and reliability of the product are improved, and the conductive polymer material has the characteristics of easiness in processing, low cost and the like, and can be widely applied to the solid electrolytic capacitor industry.
Description
Technical Field
The invention relates to the field of solid electrolytic capacitors, in particular to a conductive polymer material for a solid electrolytic capacitor.
Background
The room temperature conductivity of conducting macromolecules can vary over the range of insulator semiconductor metallic states, which is not comparable to any material to date. The conductive polymer can be doped, dedoped and the doping and dedoping process is completely controllable, which is the unique property of the conductive polymer. The doping of the conductive polymer is essentially redox reaction, and the redox process is completely controllable. The conductive polymer has a pi-conjugated structure, so that the conductive polymer has the characteristic of high response speed. In conclusion, the conductive polymer is a novel functional material with excellent performance, and is also gradually applied to the field of solid electrolytic capacitors. However, the conductivity and safety stability of the conventional conductive polymer materials are in urgent need to be improved.
Disclosure of Invention
The purpose of the invention is as follows: in view of the above problems, the present invention provides a conductive polymer material for solid electrolytic capacitors, which has improved formulation to improve conductivity and safety.
The technical scheme is as follows:
A conductive polymer material for a solid electrolytic capacitor comprises conductive polymer particles, cationic polyacrylamide, a conductive additive, a crosslinking initiation promoter, a grafting agent and conductive carbon black, wherein the conductive polymer particles are one or two of poly (3, 4-dioxyethyl thiophene) particles and polystyrene sulfonic acid particles, and the grafting agent comprises one or more of a titanate grafting agent, an aluminate grafting agent, caprolactam, succinic anhydride, maleic anhydride, succinic acid, stearic acid, zinc stearate, petroleum acid and octadecanoic acid.
Specifically, the weight ratio of the conductive polymer particles, the cationic polyacrylamide, the conductive additive, the crosslinking initiation accelerator, the grafting agent and the conductive carbon black is 10-70: 20-80: 0.2-5: 5-10.
Further, the weight ratio of the conductive polymer particles, the cationic polyacrylamide, the conductive additive, the crosslinking initiation accelerator, the grafting agent and the conductive carbon black is 10-30: 20-40: 0.2-2: 5-8.
Further, the weight ratio of the conductive polymer particles, the cationic polyacrylamide, the conductive additive, the crosslinking initiation promoter, the grafting agent and the conductive carbon black is 25: 30: 2: 8.
Preferably, the conductive additive is silver powder.
Preferably, the crosslinking initiation promoter is one or more of benzoyl peroxide, diethylenetriamine, cumyl peroxide, and t-butyl peroxide.
Preferably, the crosslinking initiation accelerator is benzoyl peroxide and diethylenetriamine, and the weight ratio of the benzoyl peroxide to the diethylenetriamine is 1: 1.
Preferably, the crosslinking initiation promoter is benzoyl peroxide.
Preferably, the conductive additive is a polar solvent or an ionic liquid, and the polar solvent is one or more of trifluoroacetic acid, acetic acid, triethylamine, tributylamine and petroleum ether.
Preferably, the polar solvent is trifluoroacetic acid or acetic acid.
Has the advantages that: compared with the prior art, the cationic polyacrylamide and the conductive additive are added into the existing conductive high polymer material, so that the conductivity of the conductive high polymer material is improved, the safety and stability of a system are improved by adding the crosslinking initiation accelerator and the grafting agent, the stability and reliability of a product are improved, and the conductive high polymer material has the characteristics of easiness in processing, low cost and the like, and can be widely applied to the industry of solid electrolytic capacitors.
Detailed Description
The present invention is further illustrated by the following examples, which are intended to be purely exemplary and are not intended to limit the scope of the invention, as various equivalent modifications of the invention will occur to those skilled in the art upon reading the present disclosure and fall within the scope of the appended claims.
a conductive polymer material for a solid electrolytic capacitor comprises conductive polymer particles, cationic polyacrylamide, a conductive additive, a crosslinking initiation promoter, a grafting agent and conductive carbon black. The conductive polymer particles are one or two of poly 3, 4-ethylenedioxythiophene particles and polystyrene sulfonic acid particles, and the grafting agent comprises one or more of titanate grafting agent, aluminate grafting agent, caprolactam, succinic anhydride, maleic anhydride, succinic acid, stearic acid, zinc stearate, petroleum acid and octadecanoic acid. The weight ratio of the conductive polymer particles, the cationic polyacrylamide, the conductive additive, the crosslinking initiation accelerator, the grafting agent and the conductive carbon black is 10-70: 20-80: 0.2-5: 5-10. The conductive additive is silver powder. The crosslinking initiation accelerator is one or more of benzoyl peroxide, diethylenetriamine, cumyl peroxide and tert-butyl peroxide. The conductive additive is a polar solvent or ionic liquid, and the polar solvent is one or more of trifluoroacetic acid, acetic acid, triethylamine, tributylamine and petroleum ether.
Example 1
A conductive polymer material for a solid electrolytic capacitor comprises conductive polymer particles, cationic polyacrylamide, a conductive additive, a crosslinking initiation promoter, a grafting agent and conductive carbon black. The conductive polymer particles are poly 3, 4-dioxyethyl thiophene particles, the grafting agent is a titanate grafting agent, and the weight ratio of the conductive polymer particles, the cationic polyacrylamide, the conductive additive, the crosslinking initiation accelerator, the grafting agent and the conductive carbon black is 10: 20: 0.2: 5. The conductive additive is silver powder, the crosslinking initiation accelerator is benzoyl peroxide, the conductive additive is a polar solvent, and the polar solvent is trifluoroacetic acid.
Example 2
A conductive polymer material for a solid electrolytic capacitor comprises conductive polymer particles, cationic polyacrylamide, a conductive additive, a crosslinking initiation promoter, a grafting agent and conductive carbon black. The conductive polymer particles are polystyrene sulfonic acid particles, and the grafting agent is an aluminate grafting agent. The weight ratio of the conductive polymer particles, the cationic polyacrylamide, the conductive additive, the crosslinking initiation accelerator, the grafting agent and the conductive carbon black is 70: 80: 5: 10. The conductive additive is silver powder. The crosslinking initiation accelerator is diethylenetriamine, and the conductive additive is ionic liquid.
According to the invention, the cationic polyacrylamide and the conductive additive are added into the existing conductive polymer material, so that the conductivity of the conductive polymer material is improved, the safety and stability of the system are improved by adding the crosslinking initiation accelerator and the grafting agent, the stability and reliability of the product are improved, and the conductive polymer material has the characteristics of easiness in processing, low cost and the like, and can be generally applied to the solid electrolytic capacitor industry.
Claims (10)
1. An electrically conductive polymer material for a solid electrolytic capacitor, characterized in that: the conductive polymer particles are one or two of poly 3, 4-dioxyethyl thiophene particles and polystyrene sulfonic acid particles, and the grafting agent comprises one or more of titanate grafting agent, aluminate grafting agent, caprolactam, succinic anhydride, maleic anhydride, succinic acid, stearic acid, zinc stearate, petroleum acid and octadecanoic acid.
2. An electroconductive polymer material for a solid electrolytic capacitor as claimed in claim 1, wherein: the weight ratio of the conductive polymer particles, the cationic polyacrylamide, the conductive additive, the crosslinking initiation accelerator, the grafting agent and the conductive carbon black is 10-70: 20-80: 0.2-5: 5-10.
3. An electroconductive polymer material for a solid electrolytic capacitor as claimed in claim 2, wherein: the weight ratio of the conductive polymer particles, the cationic polyacrylamide, the conductive additive, the crosslinking initiation accelerator, the grafting agent and the conductive carbon black is 10-30: 20-40: 0.2-2: 5-8.
4. An electroconductive polymer material for a solid electrolytic capacitor as claimed in claim 2, wherein: the weight ratio of the conductive polymer particles, the cationic polyacrylamide, the conductive additive, the crosslinking initiation accelerator, the grafting agent and the conductive carbon black is 25: 30: 2: 8.
5. An electroconductive polymer material for a solid electrolytic capacitor as claimed in claim 1, wherein: the conductive additive is silver powder.
6. An electroconductive polymer material for a solid electrolytic capacitor as claimed in claim 1, wherein: the crosslinking initiation accelerator is one or more of benzoyl peroxide, diethylenetriamine, cumyl peroxide and tert-butyl peroxide.
7. An electroconductive polymer material for a solid electrolytic capacitor as claimed in claim 1, wherein: the crosslinking initiation accelerant is benzoyl peroxide and diethylenetriamine, and the weight ratio of the crosslinking initiation accelerant to the diethylenetriamine is 1: 1.
8. An electroconductive polymer material for a solid electrolytic capacitor as claimed in claim 1, wherein: the crosslinking initiation accelerator is benzoyl peroxide.
9. An electroconductive polymer material for a solid electrolytic capacitor as claimed in claim 1, wherein: the conductive additive is a polar solvent or ionic liquid, and the polar solvent is one or more of trifluoroacetic acid, acetic acid, triethylamine, tributylamine and petroleum ether.
10. An electroconductive polymer material for a solid electrolytic capacitor as claimed in claim 1, wherein: the polar solvent is trifluoroacetic acid and acetic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910751363.1A CN110564095A (en) | 2019-08-14 | 2019-08-14 | Conductive polymer material for solid electrolytic capacitor |
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| CN201910751363.1A CN110564095A (en) | 2019-08-14 | 2019-08-14 | Conductive polymer material for solid electrolytic capacitor |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101302340A (en) * | 2007-05-09 | 2008-11-12 | 郑州泰达电子材料科技有限公司 | Conductive composite body, conductive polymer composition and electronic component using the conductive polymer composition |
| WO2013035548A1 (en) * | 2011-09-06 | 2013-03-14 | テイカ株式会社 | Dispersion of electrically conductive polymer, and electrically conductive polymer and use thereof |
| CN105609309A (en) * | 2015-12-23 | 2016-05-25 | 丰宾电子（深圳）有限公司 | Conductive macromolecule suspension and solid electrolytic capacitor equipped with same |
| CN105693937A (en) * | 2016-02-24 | 2016-06-22 | 湖南琦琳高分子导电材料有限公司 | Conducting composite material with ultrahigh molecular weights and method for manufacturing conducting composite material |
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2019
- 2019-08-14 CN CN201910751363.1A patent/CN110564095A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101302340A (en) * | 2007-05-09 | 2008-11-12 | 郑州泰达电子材料科技有限公司 | Conductive composite body, conductive polymer composition and electronic component using the conductive polymer composition |
| WO2013035548A1 (en) * | 2011-09-06 | 2013-03-14 | テイカ株式会社 | Dispersion of electrically conductive polymer, and electrically conductive polymer and use thereof |
| CN105609309A (en) * | 2015-12-23 | 2016-05-25 | 丰宾电子（深圳）有限公司 | Conductive macromolecule suspension and solid electrolytic capacitor equipped with same |
| CN105693937A (en) * | 2016-02-24 | 2016-06-22 | 湖南琦琳高分子导电材料有限公司 | Conducting composite material with ultrahigh molecular weights and method for manufacturing conducting composite material |
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Application publication date: 20191213 |
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