CN207159140U - A kind of orienting device for graphene heat-conductive composite material - Google Patents
A kind of orienting device for graphene heat-conductive composite material Download PDFInfo
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- CN207159140U CN207159140U CN201720504792.5U CN201720504792U CN207159140U CN 207159140 U CN207159140 U CN 207159140U CN 201720504792 U CN201720504792 U CN 201720504792U CN 207159140 U CN207159140 U CN 207159140U
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Abstract
The utility model discloses a kind of orienting device for graphene heat-conductive composite material, including material cylinder, shaping mold cavity, oriented tube and slicer, one end of the material cylinder is internally provided with pressurizing piston, the other end is connected by oriented tube with the charging aperture of shaping mold cavity, and the slicer is fixedly installed on the discharging opening of shaping mold cavity.The utility model can be oriented when preparing graphene heat-conductive composite material to heat conduction network, so that obtained heat-conductive composite material is respectively formed the heat conduction network with excellent heat conducting performance in transverse plane and vertical plane, a continuous three dimentional heat conduction network can be established, is finally reached and improves heat-conductive composite material thermal conductivity purpose.
Description
Technical field
It the utility model is related to thermal interfacial material technical field, more particularly to it is a kind of for graphene heat-conductive composite material
Orienting device.
Background technology
With the further raising of working frequency of electronic component, the increase of power capacity and carrying for efficiency and reliability
Height, particularly integrated level more and more higher, it is desirable to which device is smaller lighter, will make electronic system that new change occur, these differentiation pair
Encapsulation, assembling and their reliability, thermal diffusivity and manufacturability of device etc. all bring significant challenge, in the market respectively
Although kind heat-conducting interface material thermal conductivity factor has brought up to 7W/mk, do not catch up with the demand of the electronics industry of high speed development but, right
High-heat-conductive composite material requires to propose requirements at the higher level.
Chinese patent notification number disclosed a kind of graphite on 24th for the prior art of " CN105885804A " in August in 2016
The preparation method of the full carbon composite heat interfacial material of alkene, its technical scheme are：Worm graphite is pressed into loose porous flexible stone
Black paper；Graphene powder material is scattered in a solvent, by emulsification pretreatment and supersound process, obtain dispersed graphene
Dispersion liquid；The micropore and surface that graphene dispersing solution is uniformly filled into the graphite paper of acquisition obtain composite；By composite wood
Material is dried in vacuo, and is removed solvent and is obtained graphite paper-graphene composite film semi-finished product；Composite membrane semi-finished product are subjected to multistage rolling
Pressure, finally gives graphene all-carbon composite and flexible film.The patent has used the graphene with excellent electricity, heat and mechanical property to make
For Heat Conduction Material, research shows, the transverse plane thermal conductivity factor of single-layer graphene can reach 5300W/m.k, but vertical plane
The capacity of heat transmission but only has 3-4W/mk.Also, because graphene is a kind of two-dimensional material, there is anisotropic, layer and layer it
Between thermal conductivity factor it is very low, specific surface area is big, in macromolecule matrix easily aggregation the features such as, therefore existing composite is deposited
In isotropic, the arrangement of graphene in the composite is more chaotic, fails effectively to have given play to plane high thermal conductivity.
Utility model content
The purpose of this utility model is solve the above-mentioned problems in the prior art, there is provided one kind is led for graphene
The orienting device of hot composite, the utility model can be determined heat conduction network when preparing graphene heat-conductive composite material
To so that obtained heat-conductive composite material is respectively formed the thermal conductive network with excellent heat conducting performance in transverse plane and vertical plane
Network, i.e., a continuous three dimentional heat conduction network can be established, be finally reached and improve heat-conductive composite material thermal conductivity purpose.
To achieve the above object, the technical solution adopted in the utility model is as follows：
A kind of orienting device for graphene heat-conductive composite material, it is characterised in that：Including material cylinder, shaping mold cavity, determine
To pipe and slicer, one end of the material cylinder is internally provided with pressurizing piston, and the other end is entered by oriented tube and shaping mold cavity
Material mouth connects, and the slicer is fixedly installed on the discharging opening of shaping mold cavity.
The oriented tube is helix tube.
A diameter of 3-20cm of the oriented tube.
Stop valve is provided between the oriented tube and material cylinder, cut-off is provided between the oriented tube and shaping mold cavity
Valve.
Effect of the present utility model is the heat conduction network orientation to graphene heat-conductive composite material, and its principle is：
Graphene heat-conductive composite material is mixture before section, and first mixture is put into material cylinder, opens stop valve, and
Material cylinder is pressurizeed from pressurizing piston one end by pressuring machine, under the effect of the pressure, the mixture in material cylinder orients through helix tube,
Graphene is set to arrange in an orderly manner in the mixture, so as to form the mixture with horizontal heat conduction network and enter shaping mold cavity,
Extruded after shaping mold cavity is molded, last sliced machine-cut piece is i.e. available to have horizontal heat conduction network and vertical heat transfer net simultaneously
The finished product heat-conductive composite material of network.
Using the utility model has the advantage of：
First, the utility model can be such that graphene is regularly arranged in heat-conductive composite material by oriented tube, so as to be formed
Horizontal heat conduction network with excellent heat conducting performance, can have graphene heat-conductive composite material by microtome and vertically lead
Ther mal network.The cooperation of said structure, with regard to obtained graphene heat-conductive composite material can be made in transverse plane and the equal shape of vertical plane
Into the heat conduction network with excellent heat conducting performance, the heat conduction advantage of graphene is effectively played, is finally reached raising composite
Thermal conductivity purpose.
2nd, helix tube is used in the utility model, and as oriented tube, its advantage is can be on the premise of space hold be reduced
Increase the orientation path of material, so as to reach preferable directional effect.
3rd, the diameter of oriented tube is arranged to 3-20cm by the utility model, can reach preferable directional effect.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure mark for：1st, material cylinder, 2, shaping mold cavity, 3, oriented tube, 4, slicer, 5, pressurizing piston, 6, stop valve.
Embodiment
Embodiment 1
A kind of orienting device for graphene heat-conductive composite material, including material cylinder 1, shaping mold cavity 2, oriented tube 3 and cut
Piece machine 4, one end of the material cylinder 1 are internally provided with pressurizing piston 5, and the other end passes through oriented tube 3 and the charging aperture of shaping mold cavity 2
Connection, the slicer 4 are fixedly installed on the discharging opening of shaping mold cavity 2.
In the utility model, the oriented tube 3 is helix tube, is made of stainless steel or PE pipes, the oriented tube 3 it is straight
Footpath can be 3cm, 20cm or 13cm.
In the utility model, stop valve 6, the oriented tube 3 and shaping mould are provided between the oriented tube 3 and material cylinder 1
Stop valve 6 is provided between chamber 2.
Embodiment 2
The present embodiment additionally provides a kind of preparation of the graphene heat-conductive composite material using orienting device described in embodiment 1
Method, comprise the following steps：
（1）Graphene oxide, absolute ethyl alcohol and silazane are pressed 100：100：2-5 ratio is uniform in glass container
Mixing, is filtered to remove absolute ethyl alcohol, and then by mixture, hot blast handles 2-4h under conditions of 120-160 DEG C in hot-blast stove.
（2）By step（1）Gained mixture presses 15-30 with the micromolecular compound containing active function groups：100 matter
Amount ratio is uniformly mixed in glass container, and catalyst is added after mixing, then under a nitrogen atmosphere in a manner of dropwise addition to mixed
Deionized water is slowly added in compound and reacts 1.5-2.5h.Wherein, the addition of catalyst is step（1）Gained mixture with
0.1-the 1% of the mixed total amount of micromolecular compound containing active function groups, the addition of deionized water is step（1）Institute
Obtain 20-the 60% of mixture and the mixed total amount of the micromolecular compound containing active function groups.
In this step, the micromolecular compound containing active function groups is with acryloxy functionality, carbon
A kind of compound in carbon double bond functional group, hydroxy functional group, carboxyl functional group, aminopropyl functional group, oxyl functional group or
The multiple compounds mixed in any proportion.The catalyst is sulfuric acid, hydrochloric acid, trifluoromethayl sulfonic acid, resin cation, chlorination
One kind in phosphorus cyanogen mixes a variety of, and sulfuric acid, hydrochloric acid, trifluoromethayl sulfonic acid, resin cation, tetramethyl in any proportion
The purity of ammonium hydroxide and phosphorus chloride cyanogen is the pure rank of analysis.
（3）Using orienting device described in the utility model to step（2）Gained mixture is oriented, and is had after orientation
There is the mixture of horizontal heat conduction network.
（4）First by step（3）Gained mixture 2-3h of application of vacuum under conditions of 150-180 DEG C, then in micro-wave oven
5-12min of middle processing, finally section are had the finished product heat conduction of horizontal heat conduction network and vertical heat transfer network compound simultaneously
Material.
Claims (4)
- A kind of 1. orienting device for graphene heat-conductive composite material, it is characterised in that：Including material cylinder（1）, shaping mold cavity （2）, oriented tube（3）And slicer（4）, the material cylinder（1）One end be internally provided with pressurizing piston（5）, it is fixed that the other end passes through Xiang Guan（3）With shaping mold cavity（2）Charging aperture connection, the slicer（4）It is fixedly installed on shaping mold cavity（2）Discharging opening.
- A kind of 2. orienting device for graphene heat-conductive composite material as claimed in claim 1, it is characterised in that：It is described fixed Xiang Guan（3）For helix tube.
- A kind of 3. orienting device for graphene heat-conductive composite material as claimed in claim 1 or 2, it is characterised in that：Institute State oriented tube（3）A diameter of 3-20cm.
- A kind of 4. orienting device for graphene heat-conductive composite material as claimed in claim 1, it is characterised in that：It is described fixed Xiang Guan（3）With material cylinder（1）Between be provided with stop valve（6）, the oriented tube（3）With shaping mold cavity（2）Between be provided with cut-off Valve（6）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720504792.5U CN207159140U (en) | 2017-05-09 | 2017-05-09 | A kind of orienting device for graphene heat-conductive composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720504792.5U CN207159140U (en) | 2017-05-09 | 2017-05-09 | A kind of orienting device for graphene heat-conductive composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207159140U true CN207159140U (en) | 2018-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720504792.5U Active CN207159140U (en) | 2017-05-09 | 2017-05-09 | A kind of orienting device for graphene heat-conductive composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207159140U (en) |
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2017
- 2017-05-09 CN CN201720504792.5U patent/CN207159140U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190828 Address after: 618000 Deyang City, Sichuan province Jingyang District No. 426 Jiangnan Road, Shi Ting Co-patentee after: Kunshan Zhongdi Materials Technology Co., Ltd. Patentee after: Deyang China carbon Mstar Technology Ltd Address before: 618000 Deyang City, Sichuan province Jingyang District No. 426 Jiangnan Road, Shi Ting Patentee before: Deyang China carbon Mstar Technology Ltd |
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| TR01 | Transfer of patent right |