CN109951902A - A kind of graphene heat generating pastes and application its graphene heating film obtained and preparation method thereof - Google Patents
A kind of graphene heat generating pastes and application its graphene heating film obtained and preparation method thereof Download PDFInfo
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- CN109951902A CN109951902A CN201910281177.6A CN201910281177A CN109951902A CN 109951902 A CN109951902 A CN 109951902A CN 201910281177 A CN201910281177 A CN 201910281177A CN 109951902 A CN109951902 A CN 109951902A
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Abstract
The present invention relates to exothermic material technical fields, more particularly to a kind of graphene heat generating pastes and application graphene heating film and preparation method thereof made from it, the graphene heat generating pastes include the raw material of following parts by weight: 10-25 part of Graphite alkene powder, 5-10 part of solvent and 60-75 parts of the carbon slurry that generates heat.The graphene heating film includes basement membrane and graphene heat generating pastes described above.Graphene heat generating pastes and graphene heating film heating conduction of the invention and electrical performance are excellent, can effectively improve the problem of prior art fever carbon slurry is easy to happen power attenuation in heating film long-time service.
Description
Technical field
The present invention relates to exothermic material technical fields, and in particular to a kind of graphene heat generating pastes and applies its stone obtained
Black alkene heating film and preparation method thereof.
Background technique
Graphene is a kind of completely new heat conduction and heat radiation material, has unique crystal grain orientation, uniformly lead in both directions
Heat, it is laminar structured to be well adapted for any surface, shielding heat source and the property that consumer electronics product is improved while component
Energy.It also provides and is thermally isolated in terms of thickness while product Homogeneouslly-radiating.
Graphene has various excellent properties, therefore the highest attention of people is just caused from being found.Its quilt
It is considered known most thin and strongest material, there is great field-effect and high carrier mobility, can transmit
High 6 orders of magnitude of current density ratio copper.Due to its unrivaled electric property, always to the research of graphene electric property
Since be research main hot spot.
Summary of the invention
In order to overcome shortcoming and defect existing in the prior art, the purpose of the present invention is to provide a kind of fevers of graphene
Slurry, the graphene heat generating pastes heating conduction and electrical performance are excellent, can effectively improve prior art fever carbon slurry and exist
The problem of being easy to happen power attenuation in heating film long-time service.
It is another object of the present invention to provide a kind of graphene heating film, the graphene heating film heating conduction and
Electrical performance is excellent, can effectively improve prior art fever carbon slurry and be easy to happen power attenuation in heating film long-time service
Problem.
Another purpose of the invention is that a kind of preparation method of graphene heating film is provided, the preparation method step letter
Single, convenient operation and control, quality is stablized, and high production efficiency, production cost is low can large-scale industrial production.
The purpose of the invention is achieved by the following technical solution: a kind of graphene heat generating pastes, the graphene fever slurry
Material includes the raw material of following parts by weight: 10-25 parts of Graphite alkene powder, 5-10 parts of solvent and fever carbon starch 60-75 parts.
Preferably, the partial size of the Graphite alkene powder is 3000-8000 mesh.
Preferably, the solvent is at least one of DMF, DBE and anti-plain boiled water.
Preferably, the fever carbon slurry is far-infrared electric ink.
Another object of the present invention is achieved through the following technical solutions: a kind of graphene heating film, including basement membrane and upper
State the graphene heat generating pastes.
Preferably, the basement membrane is any one in PVC film, PET film and EVA film.
An also purpose of the invention is achieved through the following technical solutions: a kind of preparation method of graphene heating film, packet
It includes following steps: A, taking Graphite alkene powder spare；B, solvent is taken to mix with the Graphite alkene powder in step A to equal
It is even, obtain mixture；C, mixture obtained in step B and fever carbon slurry are thoroughly mixed uniformly, obtain graphene hair
Hot slurry；D, the graphene heat generating pastes screen printer for obtaining step C is coated on basement membrane, and copper plate electrode, system are connected in both ends
Obtain the dilute heating film of graphite.
Preferably, in the step A, Graphite alkene raw powder's production technology are as follows: using partial size in 3000-8000 mesh squama
Piece graphite is raw material, processes 20-24h in the ball mill with revolving speed 200-300rpm.
Preferably, in the step C, speed of agitator 600-800rpm, time 1-3h.
Preferably, in the step D, the coating thickness of graphene heat generating pastes is 10-15 μm.
The beneficial effects of the present invention are: the present invention superior electrical conductivity dilute using graphite, thermal conductivity provide a kind of new
Material promote traditional serious defect of exothermic material power attenuation.The unique pleated structure of grapheme material can make to generate heat
Material still maintains close link under the operating condition for the cooling that heats up repeatedly between microcosmic point material, to ensure that conduction
The resistance stabilization of material further controls the decline of power.
Graphene heat generating pastes and graphene heating film heating conduction of the invention and electrical performance are excellent, can be effectively
Improve the problem of prior art fever carbon slurry is easy to happen power attenuation in heating film long-time service.
Preparation method step of the invention is simple, convenient operation and control, and quality is stablized, high production efficiency, and production cost is low
It can large-scale industrial production.
Specific embodiment
For the ease of the understanding of those skilled in the art, below with reference to embodiment, the present invention is further illustrated, real
The content that the mode of applying refers to not is limitation of the invention.
Embodiment 1
A kind of graphene heat generating pastes, the graphene heat generating pastes include the raw material of following parts by weight: Graphite alkene powder
25 parts, 10 parts of solvent and fever carbon starch 75 parts.
The partial size of the Graphite alkene powder is 8000 mesh.
The solvent is DMF.
The fever carbon slurry is far-infrared electric ink.
A kind of graphene heating film, including basement membrane and graphene heat generating pastes described above.
The basement membrane is rectangular PET film.
A kind of preparation method of graphene heating film, comprising the following steps: A, take Graphite alkene powder spare；B, it takes molten
Agent is mixed with the Graphite alkene powder in step A to uniform, obtains mixture；C, by mixture obtained in step B and hair
Hot carbon slurry is thoroughly mixed uniformly, obtains graphene heat generating pastes；D, the graphene heat generating pastes silk-screen for obtaining step C
Machine is coated on basement membrane, and copper plate electrode is connected at both ends, and the dilute heating film of graphite is made.
In the step A, Graphite alkene raw powder's production technology are as follows: use partial size in 8000 mesh crystalline flake graphites for original
Material, in the ball mill for 24 hours with revolving speed 200rpm processing.
In the step C, speed of agitator 800rpm, time 2h.
In the step D, the coating thickness of graphene heat generating pastes is 15 μm.
Embodiment 2
The present embodiment and above-described embodiment 1 the difference is that: the graphene heat generating pastes include the original of following parts by weight
Material: 20 parts of Graphite alkene powder, 8 parts of solvent and fever carbon starch 70 parts.
The partial size of the Graphite alkene powder is 4000 mesh.
The solvent is anti-plain boiled water.
The basement membrane is rectangular PVC film.
In the step A, Graphite alkene raw powder's production technology are as follows: use partial size in 4000 mesh crystalline flake graphites for original
Material processes 22h in the ball mill with revolving speed 250rpm.
In the step C, speed of agitator 600rpm, time 1h.
In the step D, the coating thickness of graphene heat generating pastes is 12 μm.
Embodiment 3
The present embodiment and above-described embodiment 1 the difference is that: the graphene heat generating pastes include the original of following parts by weight
Material: 15 parts of Graphite alkene powder, 12 parts of solvent and fever carbon starch 60 parts.
The partial size of the Graphite alkene powder is 5000 mesh.
The solvent is DMF.
The basement membrane is rectangular EVA film.
In the step A, Graphite alkene raw powder's production technology are as follows: use partial size in 5000 mesh crystalline flake graphites for original
Material processes 20h in the ball mill with revolving speed 300rpm.
In the step C, speed of agitator 700rpm, time 3h.
In the step D, the coating thickness of graphene heat generating pastes is 17 μm.
The performance comparison of graphene heating film of the invention and commercially available graphene heating film is as follows:
| Test item | Market graphene heating film | Graphene heating film of the invention |
| Voltage | 220v | 220v |
| Resistance | 270Ω | 270Ω |
| Startup power | 160w | 160w |
| Firm power | 130w | 144w |
| Play the steady time | 20min | 18min |
| Temperature range | 40℃~50℃ | 40℃~50℃ |
| Febrile state description | Whole fever | Whole fever |
As can be seen from the above table, graphene heating film heating conduction of the invention and electrical performance are excellent, can effectively improve
The problem of prior art fever carbon slurry is easy to happen power attenuation in heating film long-time service.
Above-described embodiment is the preferable implementation of the present invention, and in addition to this, the present invention can be realized with other way,
Do not depart under the premise of present inventive concept it is any obviously replace it is within the scope of the present invention.
Claims (10)
1. a kind of graphene heat generating pastes, it is characterised in that: the graphene heat generating pastes include the raw material of following parts by weight: ball
Graphene powder 10-25 parts of mill, 5-10 parts of solvent and fever carbon starch 60-75 parts.
2. a kind of graphene heat generating pastes according to claim 1, it is characterised in that: the grain of the Graphite alkene powder
Diameter is 3000-8000 mesh.
3. a kind of graphene heat generating pastes according to claim 1, it is characterised in that: the solvent is DMF, DBE and prevents
At least one of plain boiled water.
4. a kind of graphene heat generating pastes according to claim 1, it is characterised in that: the fever carbon slurry is Far infrared electric
Hot oil ink.
5. a kind of graphene heating film, it is characterised in that: including basement membrane and the described in any item graphene fevers of claim 1-4
Slurry.
6. a kind of graphene heating film according to claim 5, it is characterised in that: the basement membrane be PVC film, PET film and
Any one in EVA film.
7. such as a kind of preparation method of graphene heating film described in claim 5 or 6, it is characterised in that: the following steps are included:
A, take Graphite alkene powder spare；B, it takes solvent to be mixed with the Graphite alkene powder in step A to uniform, is mixed
Material；C, mixture obtained in step B and fever carbon slurry are thoroughly mixed uniformly, obtain graphene heat generating pastes；D, will
The graphene heat generating pastes screen printer that step C is obtained is coated on basement membrane, and copper plate electrode is connected at both ends, and the dilute fever of graphite is made
Film.
8. a kind of preparation method of graphene heating film according to claim 7, it is characterised in that: in the step A, ball
Grind graphene raw powder's production technology are as follows: use partial size in 3000-8000 mesh crystalline flake graphite for raw material, in the ball mill with revolving speed
200-300rpm processes 20-24h.
9. a kind of preparation method of graphene heating film according to claim 7, it is characterised in that: in the step C, stir
Mixing revolving speed is 600-800rpm, time 1-3h.
10. a kind of preparation method of graphene heating film according to claim 7, it is characterised in that: in the step D,
The coating thickness of graphene heat generating pastes is 10-15 μm.
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| CN111808453A (en) * | 2020-07-29 | 2020-10-23 | 武汉联维新材料科技有限公司 | High-conductivity self-bonding graphene low-pressure heating slurry and preparation method and application thereof |
| CN114958074A (en) * | 2022-05-18 | 2022-08-30 | 广东墨睿科技有限公司 | Graphene conductive ink and preparation method thereof |
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Application publication date: 20190628 |