CN106398125B - A kind of preparation method of polythiophene/nano silver composite conducting material - Google Patents
A kind of preparation method of polythiophene/nano silver composite conducting material Download PDFInfo
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- CN106398125B CN106398125B CN201510454023.4A CN201510454023A CN106398125B CN 106398125 B CN106398125 B CN 106398125B CN 201510454023 A CN201510454023 A CN 201510454023A CN 106398125 B CN106398125 B CN 106398125B
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- polythiophene
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- nano silver
- conducting material
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Abstract
The invention belongs to technical field of inorganic, and in particular to a kind of preparation method of polythiophene/nano silver composite conducting material.Preparation in accordance with the present invention, it first weighs silver nitrate and soluble halide (or soluble oxysalt) is configured to aqueous solution, under illumination and stirring condition, polythiophene solution is placed in beaker and is used as base material, silver nitrate and soluble halide (or soluble oxysalt) are added drop-wise in beaker, the silver salt precipitation of photodecomposition reaction can be occurred by being formed on polythiophene surface, and photodecomposition reaction occurs under illumination condition and generates Nano silver grain again for silver salt precipitation.After above-mentioned reaction system reacts a period of time under light illumination, with centrifugal separator high-speed separation product, and it is washed with deionized for several times to get to polythiophene/nano silver composite conducting material.The advantages that polythiophene obtained/nano-silver conductive powder is conductive can be excellent, and chemical stability is high, can be widely applied to the numerous areas such as ultracapacitor, chemical industry.
Description
Technical field
The invention belongs to domain of inorganic chemistry, and in particular to a kind of high conduction performance polythiophene/nano silver composite conducting material
The preparation method of material.
Background technology
With being constantly progressive for social science and technology, the demand to conductive material is more and more, such material is widely used in
The numerous areas such as medicine, oil, chemical industry, communication, electronics, automobile and ceramics.Traditional conductive powder body have carbon system (such as graphene,
Carbon nanotube, carbon black, graphite, acetylene black and carbon fiber etc.), metal system (such as metal-powder and metallic fiber), doping type gold
Belong to several major class such as oxide system (ATO and ZAO etc.) and organic polymer species conductive material (such as polyaniline, polythiophene etc.).Carbon system
The major defect of conductive powder body is bad dispersibility, and color is deep, it is difficult to be mixed colours, and environment easy to pollute during production and use；Gold
That there are density is big for category system conductive powder body, exists when being used as conductive filler and is easy to happen deposition, weatherability is bad etc. it is many not
Foot, and production cost is high, it is expensive；And often electric conductivity is poor for doping type metal oxide system conductive material, it is heavy easily to occur
It forms sediment and is layered and influences practical application；Organic polymer species conductive material is expensive, and weatherability etc. is not so good as inorganic conductive
Material.Therefore, exploitation is a kind of having high conduction performance, and dispersion is easy in system, cheap, and satisfactory mechanical property, resistance to
The good novel conductive material of time property, is the active demand of industry.
Have at this stage about the preparation of all kinds of conductive powder bodies and research report very much, wherein nano-silver powder is since it has
Excellent physics and chemistry and electric conductivity becomes one of maximum conductive powder material of dosage.In order to rationally reduce the consumption of silver, fully
Using the Precious Metals Resources advantage that China is abundant, carry out the development of novel nano silver composite material, then becomes a great theory
The work of research and actual application prospect.
The present invention is only metal or the single component of organic matter for existing silver system conductive material or polythiophene class conductive material,
When use by easy sedimentation, with high costs or mechanical performance is bad the deficiencies of, creatively propose a kind of novel poly-
The preparation method of thiophene/nano silver composite conducting material uses polythiophene as base material, is given birth in its surface in situ photoresponse
At nano silver, to obtain polythiophene/nano silver composite conducting material.It is compound that this method is conceived to raising polythiophene/nano silver
Electric conductivity, dispersibility and the structural stability of conductive powder body reach electric conductivity in guarantee polythiophene/nano silver composite conductive powder
Under the premise of capable of requiring, greatly reduces the usage amount of metallic silver, efficiently controlled production cost so that polythiophene/nano silver
The industrialization of composite material becomes possibility；Moreover, any organic solvent is not added in reaction, while reducing production cost
Also comply with Green Chemistry requirement.The present invention is base material using polythiophene, is reacted dexterously by photodecomposition in situ on its surface
Nano silver and polythiophene are organically combined, successfully obtained structure-controllable, polythiophene/nano silver composite conducting material that performance is stablized
Material.
Since the preparation method that the present invention uses has stable product structure, excellent electric conductivity and is not necessarily to the spies such as complex device
Therefore point has very strong prospects for commercial application.
Invention content
The object of the present invention is to provide a kind of preparation method of high conduction performance polythiophene/nano silver composite conducting material,
For preparing the powder with excellent conductive performance, the density for reducing powder avoids that sedimentation phenomenon occurs during use, improves
The thermal stability and weatherability of composite material.Using preparation method provided by the invention, the polythiophene/nano silver obtained is compound
Conductive powder body has raw material sources extensive, production process the advantages that low energy consumption, and electric conductivity is excellent, good weatherability.Meanwhile it should
Method does not generate any hazardous waste, can save resource, reduces the pollution to environment, meets low-carbon economy and sustainable development
Economic policies requirement.
The present invention proposes a kind of novel polythiophene/nano silver composite conductive powder, using photodecomposition in situ reaction
It is prepared by method, the specific steps are：It weighs silver nitrate and soluble halide (or soluble oxysalt) is configured to
Aqueous solution, it is spare.Under strong illumination and stirring condition (500W high-pressure sodium lamps), polythiophene solution is placed in beaker and is used as base
Silver nitrate and soluble halide (or soluble oxysalt) solution are added drop-wise in beaker, in polythiophene surface shape by material
At the silver salt precipitation that photodecomposition reaction can occur, silver salt, which is deposited under illumination condition to decompose, generates Nano silver grain, tightly
The close surface for being coated on polythiophene.After above-mentioned reaction system reacts a period of time under light illumination, with centrifugal separator high-speed separation
Product, and be washed with deionized for several times to get to polythiophene/nano silver composite conducting material.
Specifically preparation condition is：
A concentration of 1-5 mol/Ls of silver nitrate solution；
A concentration of 1-5 mol/Ls of soluble halide (or soluble oxysalt) solution；
The illumination reaction time is after completion of dropwise addition：20 minutes to 2 hours.
The polythiophene that the present invention obtains/silver composite conducting material has good dispersibility, and resistivity is only 10-6Europe
Nurse centimetre or so.
The invention has the advantages that：
1, it is put forward for the first time and has prepared polythiophene/nano silver composite conductive powder using photodecomposition in situ reaction.This is led
Electric powder body material is tightly combined, Nano silver grain has grain size small and equal due to being in-situ preparation between polythiophene and nano silver
One, the advantages that good conductivity, soilless sticking phenomenon；
2, composite conducting material is compared with simple nano-silver powder, under the premise of ensureing that electric conductivity meets conductive require,
Its density is even more to have and significantly reduce, this application range to expanding composite material avoids the generation of sedimentation, your gold reduced
Belong to the dosage of material, the economic value added for improving the composite conductive powder is very significant.
3, not only there is excellent conductive capability using polythiophene/nano silver composite conducting material prepared by the present invention, and
And there is good antibacterial ability.
Specific implementation mode
Below by specific embodiment, the present invention is further illustrated.
Embodiment 1：
1mol/L silver nitrate solutions and 1mol/L potassium bromide solutions are prepared respectively, it is spare.It, will under illumination and stirring condition
Polythiophene solution, which is placed in beaker, is used as base material, and silver nitrate and potassium bromide are added drop-wise in beaker, and bromine is formed on polythiophene surface
Change silver precipitation, silver bromide (500W high-pressure sodium lamps) under high light conditions, which is decomposed, generates Nano silver grain.System is in illumination
And it is reacted again 20 minutes under stirring.With centrifugal separator high-speed separation product, and it is washed with deionized for several times to get to poly- thiophene
Pheno/nano silver composite conducting material.
Embodiment 2
5mol/L silver nitrate solutions and 5mol/L Klorvess Liquids are prepared respectively, it is spare.It, will under illumination and stirring condition
Polythiophene solution, which is placed in beaker, is used as base material, and silver nitrate and potassium chloride are added drop-wise in beaker, and chlorine is formed on polythiophene surface
Change silver precipitation, silver chlorate (500W high-pressure sodium lamps) under high light conditions, which is decomposed, generates Nano silver grain.System is in illumination
And the lower reaction response of stirring is after 2 hours, with centrifugal separator high-speed separation product, and be washed with deionized for several times to get to
Polythiophene/nano silver composite conducting material.
Embodiment 3
3mol/L silver nitrate solutions and 3mol/L liquor kalii iodides are prepared respectively, it is spare.It, will under illumination and stirring condition
Polythiophene solution, which is placed in beaker, is used as base material, and silver nitrate and potassium iodide are added drop-wise in beaker, and iodine is formed on polythiophene surface
Change silver precipitation, silver iodide (500W high-pressure sodium lamps) under illumination condition, which are decomposed, generates Nano silver grain.System in illumination and
Reacted again under stirring 1 hour, with centrifugal separator high-speed separation product, and be washed with deionized for several times to get to polythiophene/
Nano silver composite conducting material.
Embodiment 4
2mol/L silver nitrate solutions and 2mol/L potassium phosphate solutions are prepared respectively, it is spare.It, will under illumination and stirring condition
Polythiophene solution, which is placed in beaker, is used as base material, and silver nitrate and potassium phosphate are added drop-wise in beaker, and phosphorus is formed on polythiophene surface
Sour silver precipitation, silver orthophosphate (500W high-pressure sodium lamps) under illumination condition, which is decomposed, generates Nano silver grain.System in illumination and
The lower reaction of stirring 2 hours with centrifugal separator high-speed separation product, and is washed with deionized for several times to get to polythiophene/receive
The silver-colored composite conducting material of rice.
Embodiment 5
2mol/L silver nitrate solutions and 2mol/L molybdic acid potassium solutions are prepared respectively, it is spare.It, will under illumination and stirring condition
Polythiophene solution, which is placed in beaker, is used as base material, and silver nitrate and potassium molybdate are added drop-wise in beaker, and molybdenum is formed on polythiophene surface
Sour silver precipitation, silver molybdate is decomposed under illumination condition generates Nano silver grain.It is small that system reacts 2 under illumination and stirring
When, with centrifugal separator high-speed separation product, and it is washed with deionized for several times to get to polythiophene/nano silver composite conducting
Material.
Claims (2)
1. a kind of preparation method of polythiophene/nano silver composite conducting material, it is characterised in that its preparation process is as follows：
A silver nitrate and soluble halide) are weighed or aqueous solution is made in soluble oxysalt, it is spare；
B) under illumination and stirring condition, polythiophene solution is placed in beaker and is used as base material, by silver nitrate and soluble halogenation
Object or soluble oxysalt solution are added drop-wise in beaker, and the silver salt that photodecomposition reaction can occur is formed on polythiophene surface
Photodecomposition reaction occurs under illumination condition and generates Nano silver grain again for precipitation, silver salt precipitation；
C it after) above-mentioned reaction system reacts a period of time under strong illumination, with centrifugal separator high-speed separation product, and spends
Ion water washing is for several times to get to polythiophene/nano silver composite conducting material.
2. a kind of preparation method of polythiophene/nano silver composite conducting material according to claim 1, it is characterised in that drop
The illumination reaction time is 20 minutes to 2 hours after adding.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108147391A (en) * | 2017-12-28 | 2018-06-12 | 深圳市百柔新材料技术有限公司 | The preparation method of carrying nano silver carbon nanotube |
| CN109332720B (en) * | 2018-12-05 | 2021-08-31 | 太原理工大学 | High-dispersity nano-silver antibacterial material and preparation method thereof |
| CN112494339B (en) * | 2020-11-02 | 2021-08-20 | 浙江大学 | Dental bonding pretreatment composition based on in-situ deposition of nano silver particles and application |
| EP4115890A1 (en) * | 2021-05-07 | 2023-01-11 | Daily Vita Limited Company | Methods for inhibiting pathogenic infection and inhibiting growth of pathogens |
| CN114045116A (en) * | 2021-12-02 | 2022-02-15 | 佛山市奥川顺新材料实业有限公司 | Antibacterial protective film and preparation method thereof |
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| CN1631982A (en) * | 2004-11-17 | 2005-06-29 | 中国科学院上海光学精密机械研究所 | Process for preparing silver/polypyrrole composite nano materials |
| CN101280106A (en) * | 2008-05-30 | 2008-10-08 | 昆明理工大学 | Preparation of magnetic conductive polyaniline nanometer composite material |
| CN101328314A (en) * | 2007-11-21 | 2008-12-24 | 华东理工大学 | Method for rapidly preparing Ag/PPy composite material |
| CN101481493A (en) * | 2009-01-05 | 2009-07-15 | 北京化工大学 | Composite material of inorganic nano material and polythiofuran derivative and preparation thereof |
| CN102321344A (en) * | 2011-09-21 | 2012-01-18 | 中国科学院理化技术研究所 | Preparation method of poly(3,4-ethylenedioxy)thiophene and gold nano-particle composite material |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1631982A (en) * | 2004-11-17 | 2005-06-29 | 中国科学院上海光学精密机械研究所 | Process for preparing silver/polypyrrole composite nano materials |
| CN101328314A (en) * | 2007-11-21 | 2008-12-24 | 华东理工大学 | Method for rapidly preparing Ag/PPy composite material |
| CN101280106A (en) * | 2008-05-30 | 2008-10-08 | 昆明理工大学 | Preparation of magnetic conductive polyaniline nanometer composite material |
| CN101481493A (en) * | 2009-01-05 | 2009-07-15 | 北京化工大学 | Composite material of inorganic nano material and polythiofuran derivative and preparation thereof |
| CN102321344A (en) * | 2011-09-21 | 2012-01-18 | 中国科学院理化技术研究所 | Preparation method of poly(3,4-ethylenedioxy)thiophene and gold nano-particle composite material |
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