CN110070955A - A kind of thin layer graphite alkenyl dispersed paste, preparation method and application - Google Patents
A kind of thin layer graphite alkenyl dispersed paste, preparation method and application Download PDFInfo
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- CN110070955A CN110070955A CN201910347291.4A CN201910347291A CN110070955A CN 110070955 A CN110070955 A CN 110070955A CN 201910347291 A CN201910347291 A CN 201910347291A CN 110070955 A CN110070955 A CN 110070955A
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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
- H01B1/04—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of carbon-silicon compounds, carbon or silicon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/663—Selection of materials containing carbon or carbonaceous materials as conductive part, e.g. graphite, carbon fibres
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/664—Ceramic materials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/665—Composites
- H01M4/666—Composites in the form of mixed materials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/668—Composites of electroconductive material and synthetic resins
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
- H05B3/14—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a kind of thin layer graphite alkenyl dispersed paste, preparation method and applications.The thin layer graphite alkenyl dispersed paste includes 1~10wt% thin graphene, 1~10wt% conductive auxiliary agent, 1~20wt%PTC material, 0.5~5wt% function additive and balance solvent.The preparation method includes: that thin graphene, conductive auxiliary agent, function additive and solvent are formed the pre-dispersed slurry of thin graphene alkenyl by high speed dispersion；And ptc material is added into the pre-dispersed slurry of thin graphene alkenyl, disperse by high speed dispersion, ball milling, emulsifying, obtains thin layer graphite alkenyl dispersed paste.When dispersed paste of the invention is applied to coated coating, dispersion efficiency and dispersion stabilization of the graphene in coated coating can be improved, the coating of acquisition has high temperature sensitivity and PTC intensity, improves safety in energy storage device current collector coatings, the application of electrothermal device coating and plays a significant role.
Description
Technical field
The present invention relates to a kind of thin layer graphite alkenyl dispersed paste more particularly to a kind of thin layers being added in coated coating
Graphene dispersion slurry, preparation method and application, belong to nanotechnology and paint field.
Background technique
Energy storage device such as lithium ion battery is because having high energy density, high operating voltage, the cycle life of length and ring
The features such as border is friendly has become the most widely used energy storage device.Under the national development for supporting new-energy automobile energetically,
It is extremely urgent that market promotes demand to performance of lithium ion battery.In order to adapt to modern consumer electronics industry and new energy row
The development of industry, especially energy density, power density and cycle life etc. performance requirement are higher and higher.However, can not neglect
Depending on be exactly higher and higher energy density and power density mean using when higher security risk.Especially in lithium ion
Under smaller and smaller, light, the thin development trend of battery, with the charge and discharge process of high current, the easily rapid heat production of inside battery,
Overheat not only results in battery performance and sharply deteriorates, and also results in thermal runaway and causes battery catches fire and explosion etc. tight
Weight consequence.
In addition, continuing to bring out with electric heating product in recent years, using coating and printing technique planar heating film due to
Have the characteristics that fever is uniform, heat utilization rate is high, swept area is big, current density is low, electromagnetic radiation is low, becomes a new generation
Efficient electrical-heating technology.The core technology of such product is heating coating, wherein taking carbon material as the carbon of main conductive filler
It is that electric heating ink becomes main product.But carbon material itself is a kind of NTC (negative temperature coefficient) material, as the temperature rises,
Resistance decline, power, which will constantly rise, to carry out huge problem to using of seat belts.
In order to improve the security performance of lithium ion battery and electric heating device, researcher can be in battery current collecting coating
Ptc material is added with the hot body surface finishing coat that generates heat, i.e., with the material of positive temperature coefficient effect, the resistance of this material can be with temperature
The raising of degree and increase.It is main at present using the material with positive temperature coefficient (PTC) for lithium ion battery, utilize its temperature
Effect is spent, internal resistance is improved when the temperature rises, to block all kinds of side reactions in time, improves the security feature of battery.For electricity
Heating device, PTC effect can be with effective protection heaters, as temperature increases in electric heating original part, and resistance increases, power
Decline the adaptive regulation, it can be achieved that temperature, is a kind of safe and reliable overheating protection means.
Thin graphene is a kind of important new function material, it is the hexatomic ring knot that carbon atom is formed with sp2 hydridization
Structure has excellent electric conductivity, thermal conductivity and mechanical property, there is extensive purposes in the coating, however thin graphene piece
It is difficult to disperse because interlayer van der Waals interaction is easy to reunite, and the poor compatibility with resin, filler, and graphene etc.
Carbon material is NTC material, i.e., as the temperature rises, and resistance decline, power constantly rises, and fever will be next huge to using of seat belts
Big problem.
Summary of the invention
The main purpose of the present invention is to provide a kind of thin layer graphite alkenyl dispersed pastes and preparation method thereof, existing to overcome
There is the deficiency of technology.
Another main purpose of the invention is to provide the application of the thin layer graphite alkenyl dispersed paste.
For realization aforementioned invention purpose, the technical solution adopted by the present invention includes:
The embodiment of the invention provides a kind of thin layer graphite alkenyl dispersed pastes, and it includes what is be calculated by mass percentage
Following component: 1~10wt% thin graphene, 1~10wt% conductive auxiliary agent, 1~20wt%PTC material, 0.5~5wt% function
The solvent of energy auxiliary agent and surplus.
Further, the ptc material includes ceramic-like ptc material and high score subclass ptc material.
The embodiment of the invention also provides the preparation methods of aforementioned thin layer graphite alkenyl dispersed paste comprising following step
It is rapid:
Thin graphene, conductive auxiliary agent, function additive and solvent is pre- by high speed dispersion formation thin graphene alkenyl
Dispersed paste；And
Ptc material and function additive are added into the pre-dispersed slurry of thin graphene alkenyl, by high speed dispersion, ball
Mill, emulsifying dispersion, obtain thin graphene thin layer graphite alkenyl dispersed paste evenly dispersed in ptc material.
The embodiment of the invention also provides application of the thin layer graphite alkenyl dispersed paste above-mentioned in prepares coating coating.
The embodiment of the invention also provides a kind of coated coatings, it includes additive, high polymer binder, curing agent, urge
Agent and filler, the additive are aforementioned any thin layer graphite alkenyl dispersed paste.
Correspondingly, it is formed by coated coating above-mentioned the embodiment of the invention also provides a kind of coating.
Further, the embodiment of the invention also provides coatings above-mentioned in the current collector coatings or electricity that prepare energy storage device
Application in the heating coating of thermal device.
Compared with prior art, the invention has the advantages that
The present invention is solved to play the characteristics such as the excellent conductive and heat-conductive of the carbon materials such as graphene by addition ptc material
Certainly because NTC effect caused by the carbon materials such as graphene and for solve graphene disperse in coating it is uneven or incompatible
Difficulty, proposes to first pass through in advance and dispersing aid, ptc material are compound prepares a kind of graphene and be uniformly dispersed, deposit in ptc material
The stable thin layer graphite alkenyl dispersed paste with resin, filler good compatibility of storage, the slurry are mixed with resin or other fillers
When, because ptc material barrier stacking can not reunite again, so that thin graphene can be improved in coating between graphene sheet layer
Dispersion efficiency and stability, so that thin graphene and ptc material is uniformly dispersed in coating, realize the high-performance of coating, together
When the coating that obtains there is high temperature sensitivity and PTC intensity, applied in energy storage device current collector coatings, electrothermal device fever
Safety is improved in layer application to play a significant role.
Detailed description of the invention
Fig. 1 is the preparation flow figure of thin layer graphite alkenyl dispersed paste in an exemplary embodiments of the invention.
Specific embodiment
In view of deficiency in the prior art, inventor is studied for a long period of time and is largely practiced, and is able to propose of the invention
Technical solution as follows will be further explained the technical solution, its implementation process and principle etc..
A kind of thin layer graphite alkenyl dispersed paste that the one aspect of the embodiment of the present invention provides, it includes according to quality hundred
Point than calculating following component: 1~10wt% thin graphene, 1~10wt% conductive auxiliary agent, 1~20wt%PTC material,
The solvent of 0.5~5wt% function additive and surplus.
In some embodiments, the conductive auxiliary agent includes conductive black, acetylene black, Ketjen black, carbon fiber, carbon crystal, leads
Any one in electro-graphitic and carbon nanotube etc. or two or more combinations, but not limited to this.
In some embodiments, positive temperature coefficient (PTC) material includes ceramic-like ptc material and/or high score subclass
PTC material etc..
Further, the ceramic-like ptc material includes any one in barium titanate doping, strontium titanates and lead titanates etc.
Kind or two or more combinations, but not limited to this.
Wherein, doped chemical contained by the barium titanate doping for example can selected from by Cr, Pb, Ca, Sr, Ce, Mn, La,
Y, composed by any one in Nb, Nd, Al, Cu, Si, Ta, Zr, Li, F, Mg or two or more combinations and lanthanide series
Group, but not limited to this.
Further, the high score subclass ptc material is preferred but is not limited to polyethylene, polypropylene, nylon, gathers to benzene
Dicarboxylic acid ethyl ester, PA polybutyleneterephthalate, polyformaldehyde, Kynoar, polytetrafluoroethylene (PTFE), polyvinyl acetate, polypropylene
Nitrile, polyacrylic acid, polyethylene glycol oxide, polyacrylamide, polyvinyl alcohol, polycarbonate etc. are based on these high molecular polymerizations
Any one during object is modified or two or more combinations.
Further, the high score subclass ptc material is by modification.
In some embodiments, the function additive includes dispersing agent, wetting agent, thickener, levelling agent, anti-settling agent, disappears
Any one in infusion and coupling agent etc. or two or more combinations, but not limited to this.
Further, the dispersing agent is preferred but is not limited to polyvinylpyrrolidone, polyvinyl alcohol, polyethylene glycol, gathers
Ethylene oxide ether, Sodium Polyacrylate, polyacrylamide, Triton X-100, sodium carboxymethylcellulose, cetyl
Ammonium bromide, dodecyl sodium sulfate, neopelex, Triton-100, tween, octyl phenol polyoxyethylene ether, hydroxyl first
Base cellulose, sodium carboxymethylcellulose pyce, ethyl cellulose, methylcellulose, carboxymethyl cellulose, hydroxypropyl methyl cellulose and
Qula leads to any one or two or more combinations in equal.
In some embodiments, the solvent preferably be selected from but be not limited to water, acetone, ethylene glycol, butyl acetate, isopropanol,
Dibasic ester, ethyl carbitol acetate, butyl carbitol, butyl carbitol acetate, butyl cellosolve acetate, solvent
Gasoline, ethyl alcohol, octanol, butanol, terpinol, dimethyl succinate, propylene glycol methyl ether acetate, dimethyl glutarate, N, N- bis-
Methylformamide, n,N-dimethylacetamide, N-Methyl pyrrolidone, butyl glycol ether, diacetone alcohol, ethylene glycol ethyl ether vinegar
In acid esters, propylene glycol monomethyl ether, ethylene glycol monomethyl ether, butyrolactone, toluene, dimethylbenzene, dibutyl phthalate and isophorone etc.
Any one or two or more combinations.
Refering to Figure 1, the other side of the embodiment of the present invention additionally provides aforementioned thin layer graphite alkenyl dispersion pulp
The preparation method of material comprising following steps:
Thin graphene, conductive auxiliary agent, function additive and solvent is pre- by high speed dispersion formation thin graphene alkenyl
Dispersed paste；And
Ptc material and function additive are added into the pre-dispersed slurry of thin graphene alkenyl, by high speed dispersion, ball
Mill, emulsifying dispersion, obtain thin graphene thin layer graphite alkenyl dispersed paste evenly dispersed in ptc material.
In some preferred embodiments, it is described preparation specifically include: by thin graphene, conductive auxiliary agent, function additive and
Solvent first passes through high speed dispersion and obtains the pre-dispersed slurry of thin graphene alkenyl, then into the pre-dispersed slurry of thin graphene
Ptc material is added, means acquisition thin graphene is dispersed by high speed dispersion, ball milling, emulsifying etc. and is divided in ptc material
Dissipate uniform, stable storage compound electrocondution slurry.
The other side of the embodiment of the present invention additionally provides thin layer graphite alkenyl dispersed paste above-mentioned in prepares coating
Application in coating.
Correspondingly, the other side of the embodiment of the present invention additionally provides a kind of coated coating, it includes additives, high score
Sub- binder, curing agent, catalyst and filler, the additive are aforementioned any thin layer graphite alkenyl dispersed paste.
Further, the electrocondution slurry is mixed as additive and high polymer binder, curing agent, catalyst and other fillers
When conjunction forms coated coating, the reunion of itself dispersion problem of non-uniform when thin graphene is mixed with other materials is avoided,
Improve dispersion efficiency and dispersion stabilization of the graphene in coated coating.
Correspondingly, the other side of the embodiment of the present invention additionally provides a kind of coating, it is by coated coating shape above-mentioned
At.
Further, the coating that the present invention obtains has high temperature sensitivity and PTC intensity, in energy storage device collector
Safety is improved in coating, the application of electrothermal device coating to play a significant role.
The other side of the embodiment of the present invention additionally provides coating above-mentioned in the current collector coatings for preparing energy storage device
Or the application in the heating coating of electrothermal device.
Further, the energy storage device includes but is not limited to lithium ion battery or supercapacitor etc..
Further, the electrothermal device includes but is not limited to electric heater, electric heating clothes, electric heating waist belt, electric heating picture, electric heating
Blanket etc..
In conclusion the present invention in order to play the characteristics such as the excellent conductive and heat-conductive of the carbon materials such as graphene, passes through addition PTC
Material come NTC effect caused by solving because of carbon materials such as graphenes and for solve graphene disperse in coating unevenly or
Incompatible difficulty, proposes to first pass through in advance and dispersing aid, ptc material are compound prepares a kind of graphene and disperse in ptc material
Uniformly, the thin layer graphite alkenyl dispersed paste of stable storage and resin, filler good compatibility, the slurry with resin or other
When filler mixes, because ptc material barrier stacking can not reunite again, so that thin graphene can be improved between graphene sheet layer
Dispersion efficiency and stability in coating, make thin graphene and ptc material be uniformly dispersed in coating, realize coating
High-performance, while the coating obtained has high temperature sensitivity and PTC intensity, in energy storage device current collector coatings, electric heater
Safety is improved in the application of part heating coating to play a significant role.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment and attached
Figure, invention is further described in detail, it should be understood that specific embodiment described herein is only used to explain this hair
It is bright, it is not intended to limit the present invention.Method in the following example is unless otherwise instructed the conventional method of this field.
Embodiment 1
A kind of thin layer graphite alkenyl dispersed paste being added in coated coating, the raw material including following parts by weight are high-quality
Measure 8 parts of thin graphene powder, 2 parts of carbon nanotube dust, 0.3 part of polyvinylpyrrolidone, 0.2 part of sodium carboxymethylcellulose,
(0.4mol% mixes niobium Ba to barium titanate0.9Sr0.1TiO3) 10 parts, 5 parts of hydrophilic treated polyethylene micropowder, anti-settling agent BYK420 0.5
Part, 0.5 part of wetting agent BYK191,0.5 part of KH550, defoaming agent TEGO 902w, deionized water surplus.
A kind of thin layer graphite alkenyl dispersed paste being added in coated coating, comprising the following steps:
1) by graphene powder, carbon nanotube dust, polyvinylpyrrolidone, sodium carboxymethylcellulose, TEGO 902w,
Deionized water is separately added into being stirred under vacuum in dispersion machine, is carried out vacuum 1500rpm stir about 2h and is uniformly dispersed, and forms pre- point
Dispersion liquid；
2) in pre-dispersed liquid, it is separately added into KH550, BYK191, (0.4mol% mixes niobium Ba to barium titanate0.9Sr0.1TiO3)
Equal remaining ingredients continue vacuum 1500rpm stir about 2h and are uniformly dispersed, form mixed liquor；
3) by uniform mixed serum by the way that in vacuum drawn machine inspiration sand mill, sand particles are milled to fineness≤10 μm, then will
Slurry is transferred to the acquisition obtained thin layer graphite alkenyl dispersed paste in fineness≤5 μm in homogeneous emulsifying machine.
Embodiment 2
A kind of thin layer graphite alkenyl dispersed paste being added in coated coating, the raw material including following parts by weight are high-quality
Measure 5 parts of thin graphene powder, 2 parts of carbon nanotube dust, 3 parts of conductive black, 2 parts of Kynoar, barium titanate
(0.4mol% mixes niobium Ba0.9Sr0.1TiO3) 10 parts, 0.5 part of DISPERBYK2000, TEGO Airex 900, KH550 0.5
Part, 0.5 part of fumed silica, N-Methyl pyrrolidone surplus.
A kind of preparation method of the thin graphene dispersed paste for anticorrosive paint, comprising the following steps:
1) graphene powder, carbon nanotube dust, carbon black powder, TEGO Airex 900, DISPERBYK2000 are distinguished
It is added into being stirred under vacuum in dispersion machine, carries out vacuum 1500rpm stir about 2h and be uniformly dispersed, form pre-dispersed liquid；
2) fumed silica, KH550, Kynoar, barium titanate are separately added into pre-dispersed liquid, and (0.4mol% mixes
Niobium Ba0.9Sr0.1TiO3) etc. remaining ingredients, continue vacuum 1500rpm stir about 2h be uniformly dispersed, formed mixed liquor；
3) by uniform mixed serum by the way that in vacuum drawn machine inspiration sand mill, sand particles are milled to fineness≤10 after grinding 1h
μm, then suck in high pressure homogenizer circulation 1h and thin graphene dispersed paste (fineness≤5 μm) are made.
Embodiment 3
A kind of thin layer graphite alkenyl dispersed paste being added in coated coating, the raw material including following parts by weight are high-quality
1 part of thin graphene powder of amount, 1 part of Ketjen black powder, 1 part of polypropylene micro mist, (0.4mol% mixes niobium to barium titanate
Ba0.9Sr0.1TiO3) 1 part, 0.5 part of DISPERBYK2200,0.5 part of KH560,0.5 part of Anti-terra-204, N, N- bis-
Methylformamide surplus.
A kind of thin layer graphite alkenyl dispersed paste being added in coated coating, comprising the following steps:
1) by graphene powder, carbon black powder, DISPERBYK2200, Anti-terra-204, n,N-Dimethylformamide
It is separately added into being stirred under vacuum in dispersion machine, carries out vacuum 1500rpm stir about 2h and be uniformly dispersed, form pre-dispersed liquid；
2) KH560, TEGO Airex 900, polypropylene micro mist, barium titanate (0.4mol% are separately added into pre-dispersed liquid
Mix niobium Ba0.9Sr0.1TiO3) etc. remaining ingredients, continue vacuum 1500rpm stir about 2h be uniformly dispersed, formed mixed liquor；
3) by uniform mixed serum by the way that in vacuum drawn machine inspiration sand mill, sand particles are milled to fineness≤10 after grinding 1h
μm；Slurry is transferred to the acquisition obtained thin graphene dispersed paste in fineness≤5 μm in homogeneous emulsifying machine again.
Reference examples 1
This reference examples difference from example 1 is that: be added without barium titanate.
Dispersion efficiency and stability of the obtained graphene dispersion slurry of this reference examples in coating are not so good as embodiment 1.
Reference examples 2
This reference examples and embodiment 2 the difference is that: be added without Kynoar and barium titanate.
Dispersion efficiency and stability of the obtained graphene dispersion slurry of this reference examples in coating are not so good as embodiment 1.
By a kind of 1-3's as a result, present invention prepares graphene is uniformly dispersed, deposits in ptc material of the embodiment of the present invention
The stable thin layer graphite alkenyl dispersed paste with resin, filler good compatibility of storage, the dispersed paste is as additive and macromolecule
When binder, curing agent, catalyst and other fillers are mixed to form coated coating, thin graphene and other materials are avoided
The reunion of itself when mixing disperses problem of non-uniform, improves dispersion efficiency and stably dispersing of the graphene in coated coating
Property, the coating of acquisition has high temperature sensitivity and PTC intensity, answers in energy storage device current collector coatings, electrothermal device coating
Play a significant role with middle raising safety.
In addition, inventor also utilizes the alternate embodiments such as listed other raw materials and other process conditions above
Various raw materials and corresponding process conditions in 1-3 have carried out corresponding test, and graphene has equally been made and has divided in ptc material
Dissipate uniform, stable storage and resin, filler good compatibility thin layer graphite alkenyl dispersed paste.
It should be appreciated that the technical concepts and features of above-described embodiment only to illustrate the invention, its object is to allow be familiar with this
The personage of item technology cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all
Equivalent change or modification made by Spirit Essence according to the present invention, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of thin layer graphite alkenyl dispersed paste, it is characterised in that include the following component being calculated by mass percentage: 1~
10wt% thin graphene, 1~10wt% conductive auxiliary agent, 1~20wt%PTC material, 0.5~5wt% function additive and surplus
Solvent.
2. thin layer graphite alkenyl dispersed paste according to claim 1, it is characterised in that: the conductive auxiliary agent includes conduction
Any one in carbon black, acetylene black, Ketjen black, carbon fiber, carbon crystal, electrically conductive graphite and carbon nanotube or two or more groups
It closes.
3. thin layer graphite alkenyl dispersed paste according to claim 1, it is characterised in that: the ptc material includes ceramics
Class ptc material and/or high score subclass ptc material.
4. thin layer graphite alkenyl dispersed paste according to claim 3, it is characterised in that: the ceramic-like ptc material packet
Include any one in barium titanate doping, strontium titanates and lead titanates or two or more combinations；Preferably, the barium titanate doping
Contained doped chemical includes by appointing in Cr, Pb, Ca, Sr, Ce, Mn, La, Y, Nb, Nd, Al, Cu, Si, Ta, Zr, Li, F, Mg
Group composed by a combination of one or more of anticipating and lanthanide series；
And/or the high score subclass ptc material includes polyethylene, polypropylene, nylon, polyethylene terephthalate, gathers to benzene two
Butyl formate, polyformaldehyde, Kynoar, polytetrafluoroethylene (PTFE), polyvinyl acetate, polyacrylonitrile, polyacrylic acid, polyoxyethylene
Any one in alkene, polyacrylamide, polyvinyl alcohol and polycarbonate or two or more combinations；Preferably, the high score
Subclass ptc material is by modification.
5. thin layer graphite alkenyl dispersed paste according to claim 1, it is characterised in that: the function additive includes dispersion
Any one in agent, wetting agent, thickener, levelling agent, anti-settling agent, defoaming agent and coupling agent or two or more combinations；
Preferably, the dispersing agent includes polyvinylpyrrolidone, polyvinyl alcohol, polyethylene glycol, polyethylene oxide ether, polypropylene
Sour sodium, polyacrylamide, Triton X-100, sodium carboxymethylcellulose, cetyl ammonium bromide, dodecyl sodium sulfonate
Sodium, neopelex, Triton-100, tween, octyl phenol polyoxyethylene ether, hydroxymethyl cellulose, methylcellulose
During sodium, ethyl cellulose, methylcellulose, carboxymethyl cellulose, hydroxypropyl methyl cellulose and Qula are logical any one or
Two or more combinations；
And/or the solvent includes water, acetone, ethylene glycol, butyl acetate, isopropanol, dibasic ester, ethyl carbitol acetic acid
Ester, butyl carbitol, butyl carbitol acetate, butyl cellosolve acetate, industrial naptha, ethyl alcohol, octanol, butanol, pine tar
Alcohol, dimethyl succinate, propylene glycol methyl ether acetate, dimethyl glutarate, n,N-Dimethylformamide, N, N- dimethylacetamide
Amine, N-Methyl pyrrolidone, butyl glycol ether, diacetone alcohol, ethylene glycol ether acetate, propylene glycol monomethyl ether, ethylene glycol monomethyl ether,
Any one in butyrolactone, toluene, dimethylbenzene, dibutyl phthalate and isophorone or two or more combinations.
6. the preparation method of thin layer graphite alkenyl dispersed paste according to any one of claims 1 to 5, it is characterised in that packet
Include following steps:
Thin graphene, conductive auxiliary agent, function additive and solvent is pre-dispersed by high speed dispersion formation thin graphene alkenyl
Slurry；And
Ptc material and function additive are added into the pre-dispersed slurry of thin graphene alkenyl, by high speed dispersion, ball milling,
Emulsifying dispersion obtains thin graphene thin layer graphite alkenyl dispersed paste evenly dispersed in ptc material.
7. application of the thin layer graphite alkenyl dispersed paste according to any one of claims 1 to 5 in prepares coating coating.
8. a kind of coated coating, it includes additive, high polymer binder, curing agent, catalyst and fillers, it is characterised in that:
The additive is thin layer graphite alkenyl dispersed paste of any of claims 1-5.
9. a kind of coating, it is characterised in that it is formed by coated coating according to any one of claims 8.
10. coating as claimed in claim 9 is in the heating coating of current collector coatings or electrothermal device for preparing energy storage device
Using；Preferably, the energy storage device includes lithium ion battery or supercapacitor；Preferably, the electrothermal device includes electricity
Warmer, electric heating clothes, electric heating waist belt, electric heating picture or electric blanket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910347291.4A CN110070955A (en) | 2019-04-28 | 2019-04-28 | A kind of thin layer graphite alkenyl dispersed paste, preparation method and application |
Applications Claiming Priority (1)
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110484105A (en) * | 2019-08-13 | 2019-11-22 | 牛墨石墨烯应用科技有限公司 | A kind of hot slurry of graphene macromolecule intelligence and preparation method thereof |
| CN110483966A (en) * | 2019-08-13 | 2019-11-22 | 牛墨石墨烯应用科技有限公司 | A kind of graphene heat generating pastes and preparation method thereof |
| CN110511609A (en) * | 2019-09-26 | 2019-11-29 | 威海云山科技有限公司 | Aqueous self limiting temperature fever ink of a kind of graphene and preparation method thereof and the application in heating film |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102532669A (en) * | 2012-01-12 | 2012-07-04 | 上海交通大学 | High polymer-based graphene composite material with positive resistance temperature coefficient and preparation method |
| CN104464883A (en) * | 2014-12-26 | 2015-03-25 | 苏州格瑞丰纳米科技有限公司 | Graphene electrocondution slurry with dispersants adsorbed on surface and manufacturing method and application thereof |
| CN107446408A (en) * | 2017-07-18 | 2017-12-08 | 德阳烯碳科技有限公司 | PTC graphenes heating ink and preparation method thereof and its heating film prepared |
| WO2019016322A1 (en) * | 2017-07-19 | 2019-01-24 | Imerys Graphite & Carbon Switzerland Ltd. | Thermally conductive polymers comprising carbon black material |
| CN109587842A (en) * | 2018-11-08 | 2019-04-05 | 中国科学院山西煤炭化学研究所 | A kind of graphene-based self limiting temperature electric heating slurry and preparation method thereof and the application in electric heating floor system |
-
2019
- 2019-04-28 CN CN201910347291.4A patent/CN110070955A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102532669A (en) * | 2012-01-12 | 2012-07-04 | 上海交通大学 | High polymer-based graphene composite material with positive resistance temperature coefficient and preparation method |
| CN104464883A (en) * | 2014-12-26 | 2015-03-25 | 苏州格瑞丰纳米科技有限公司 | Graphene electrocondution slurry with dispersants adsorbed on surface and manufacturing method and application thereof |
| CN107446408A (en) * | 2017-07-18 | 2017-12-08 | 德阳烯碳科技有限公司 | PTC graphenes heating ink and preparation method thereof and its heating film prepared |
| WO2019016322A1 (en) * | 2017-07-19 | 2019-01-24 | Imerys Graphite & Carbon Switzerland Ltd. | Thermally conductive polymers comprising carbon black material |
| CN109587842A (en) * | 2018-11-08 | 2019-04-05 | 中国科学院山西煤炭化学研究所 | A kind of graphene-based self limiting temperature electric heating slurry and preparation method thereof and the application in electric heating floor system |
Cited By (17)
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| CN110483966A (en) * | 2019-08-13 | 2019-11-22 | 牛墨石墨烯应用科技有限公司 | A kind of graphene heat generating pastes and preparation method thereof |
| CN110511609A (en) * | 2019-09-26 | 2019-11-29 | 威海云山科技有限公司 | Aqueous self limiting temperature fever ink of a kind of graphene and preparation method thereof and the application in heating film |
| CN110931710A (en) * | 2019-12-16 | 2020-03-27 | 东莞维科电池有限公司 | Positive electrode substrate, preparation method and application thereof |
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| CN111628248B (en) * | 2020-05-26 | 2021-08-24 | 湖南烯源新材科技有限公司 | Power battery self-temperature-limiting graphene heating film assembly and preparation method of heating film thereof |
| CN114621635A (en) * | 2020-12-10 | 2022-06-14 | 中国科学院大连化学物理研究所 | Graphene-based battery electrode material screen printing conductive ink, and preparation method and application thereof |
| CN114621635B (en) * | 2020-12-10 | 2022-10-04 | 中国科学院大连化学物理研究所 | Graphene-based battery electrode material screen printing conductive ink, and preparation method and application thereof |
| CN113725555A (en) * | 2021-09-28 | 2021-11-30 | 星恒电源(滁州)有限公司 | Lithium ion battery diaphragm and preparation method thereof |
| CN113725555B (en) * | 2021-09-28 | 2023-03-10 | 星恒电源(滁州)有限公司 | Lithium ion battery diaphragm and preparation method thereof |
| CN113621273B (en) * | 2021-10-13 | 2022-01-11 | 清远市简一陶瓷有限公司 | Self-temperature-limiting conductive ink, preparation method and heating ceramic |
| CN113621273A (en) * | 2021-10-13 | 2021-11-09 | 广东简一(集团)陶瓷有限公司 | Self-temperature-limiting conductive ink, preparation method and heating ceramic |
| CN114316769A (en) * | 2021-12-31 | 2022-04-12 | 烯泽韩力石墨烯应用科技(无锡)有限公司 | Graphene PTC (Positive temperature coefficient) electrothermal film slurry, preparation method thereof and electrothermal film |
| CN115340719A (en) * | 2022-09-22 | 2022-11-15 | 东莞市鸿亿导热材料有限公司 | Graphene composite PTC material and preparation method thereof |
| CN115340719B (en) * | 2022-09-22 | 2024-02-20 | 东莞市鸿亿导热材料有限公司 | Graphene composite PTC material and preparation method thereof |
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