CN207108895U - A kind of graphene composite material heat conducting film production system - Google Patents
A kind of graphene composite material heat conducting film production system Download PDFInfo
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- CN207108895U CN207108895U CN201720969592.7U CN201720969592U CN207108895U CN 207108895 U CN207108895 U CN 207108895U CN 201720969592 U CN201720969592 U CN 201720969592U CN 207108895 U CN207108895 U CN 207108895U
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- heat conducting
- composite material
- conducting film
- graphene composite
- material heat
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Abstract
It the utility model is related to grapheme material application and preparation field, disclose a kind of graphene composite material heat conducting film production system, the graphene composite material heat conducting film production system uses expanded graphite as raw material, includes prestripping device, ultrasonic stripping off device, de-airing mixer, desk-top coating machine, vacuum drying chamber and two pairs of rollers roll squeezer successively by process sequence.The utility model has all carried out the parameter setting of equipment to prestripping device, ultrasonic stripping off device, de-airing mixer, desk-top coating machine, vacuum drying chamber, corona machine and two pairs of rollers roll squeezer, only need that large-scale production can be achieved according to the device parameter set when production, production efficiency is drastically increased, ensure that the high thermal conductivity for the graphene composite material heat conducting film being prepared.
Description
Technical field
Grapheme material application and preparation field is the utility model is related to, more particularly, to a kind of graphene composite material
Heat conducting film production system.
Background technology
For electronic product, its all parts effectively radiates is used for the life-span to obtain relatively low operating temperature
Extremely important influence can be produced with the speed of service.With the continuous development and progress of science and technology, particularly computer chip multinuclear
Change has become main flow, and the speed of service is constantly accelerated, and power also increases, and effectively radiate plays act to its speed of service
The effect of sufficient weight.At present, the radiating main product of in the market is graphite-like heat conducting film, however, its heat dispersion much meets
The not radiating requirements of electronics and IT products radiating elements, become the radiating bottleneck of most electronic product.
Graphene composite material heat conducting film generally use oxidation-reduction method prepares graphene, takes the side for spraying to substrate
Formula, as Chinese patent CN2014103071579 discloses the preparation method and product of graphene composite heat conduction film, preparation method bag
Include following steps：S1, crystalline flake graphite or graphite powder are placed in the mixed liquor of the concentrated sulfuric acid, potassium peroxydisulfate and phosphorus pentoxide and soaked
Diel, then filter and dry, complete pre-oxidation；S2, the graphite after pre-oxidation is further aoxidized using Hummers methods,
Carried out in the concentrated sulfuric acid and potassium permanganate it is fully oxidized, then add deionized water dilution, repeatedly washing filter after, obtain oxygen
Graphite aqueous solution；S3, graphene oxide water solution is sprayed on substrate using hot spray process, deposition obtains graphite oxide
Alkene film；S4, graphene oxide film is reduced, obtain graphene film；S5, graphene film is carried out at overlay film
Reason, obtains graphene composite heat conduction film；Problems be present in the patent：1. if using Hummers methods, the meeting in oxidizing process
The conjugated structure of graphene film is destroyed, causes heat transfer limited, so as to influence heat conductivility.2. using, spraying process is inefficient, goes back
Graphene oxide can be caused to waste.
Utility model content
The technical problems to be solved in the utility model is to answer for the graphene that prior art is prepared using Hummers methods
The defects of condensation material heat conducting film, there is provided a kind of graphene composite material heat conducting film production system, creative is filled using prestripping
Put and carry out twice ultrasonic with ultrasonic stripping off device and prepare high-quality graphene, then by de-airing mixer, desk-top coating machine, true
Empty drying box, corona machine and two pairs of rollers roll squeezer are realized and are prepared on a large scale to obtain the graphene composite material heat conduction of high thermal conductivity
Film.
The purpose of this utility model is achieved by the following technical programs：
A kind of graphene composite material heat conducting film production system is provided, uses expanded graphite as raw material, by process sequence according to
It is secondary including prestripping device, ultrasonic stripping off device, de-airing mixer, desk-top coating machine, vacuum drying chamber and two pairs of rollers roll squeezer；
The first circulation system that the prestripping device includes the first batch mixing pond and multiple first ultrasonic reaction kettles form, institute
State the first cycle system and be provided with dog-house and the first discharge port；The ultrasonic stripping off device includes the second batch mixing pond and multiple second
The second circulation system of ultrasonic reaction kettle composition, the second circulation system are provided with charging aperture and the second discharge port.
The utility model uses expanded graphite as raw material, and twice ultrasonic is carried out by prestripping device, ultrasonic stripping off device
Mechanical stripping obtains high-quality graphene, so as to avoid Hummers methods from destroying the conjugation knot of graphene film in oxidizing process
The problem of structure, slurries are mixed to get by de-airing mixer and solvent, graphene slurries are hung in desk-top coating machine be coated onto it is soft
Property substrate in, through drying and hot rolling handle, finally give graphene composite material heat conducting film.
Wherein, the utility model de-airing mixer, desk-top coating machine, vacuum drying chamber and two pairs of rollers roll squeezer can use
Existing equipment.
Preferably, the corona machine being connected with the desk-top coating machine is additionally provided with, flexible substrate is handled by corona machine, enters one
It is easy to be coated with step ground.
Preferably, the discharge power of the corona machine is 0.3KVA~1.5KVA, 100~500r/min of rotating speed.
Preferably, the device parameter of the prestripping device is as follows：Temperature is 30~50 DEG C, frequency is 10000~25000
Hz, flow velocity are 1.0~4.0m3/ h, circulation stirring speed are 1000~2000 r/min, the ultrasonic disperse time is 0.5~2.0h.
Preferably, the device parameter of the ultrasonic stripping off device is as follows：Temperature is 30~50 DEG C, frequency be 18000~
25000Hz, flow velocity are 2.0~5.0 m3/ h, circulation stirring speed are 1000~2000 r/min, the ultrasonic disperse time be 2~
5h。
Preferably, the desk-top coating machine includes scraper, and the height of the scraper and flexible substrate is 10~50mm.
Preferably, the two pairs of rollers roll squeezer includes upper module and lower module, and the upper module is fixing roller, the lower module
For movable roll.
It is highly preferred that the temperature of the fixing roller and movable roll stabilizes to 80~110 DEG C, the rotating speed of the movable roll is
30~100 r/min.
Preferably, the device parameter of the de-airing mixer is as follows：Rotating speed is 500~1500 r/min, stirred tank pressure
For -0.1 Mpa, mixing time is 1~12h.
Compared with prior art, the beneficial effects of the utility model：
The utility model uses expanded graphite as raw material, and twice ultrasonic is carried out by prestripping device, ultrasonic stripping off device
Mechanical stripping obtains high-quality graphene, so as to avoid Hummers methods from destroying the conjugation knot of graphene film in oxidizing process
The problem of structure, slurries are mixed to get by de-airing mixer and solvent, graphene slurries are hung in desk-top coating machine be coated onto it is soft
Property substrate in, through drying and hot rolling handle, finally give graphene composite material heat conducting film.
The utility model to prestripping device, ultrasonic stripping off device, de-airing mixer, desk-top coating machine, vacuum drying chamber,
Corona machine and two pairs of rollers roll squeezer have all carried out the parameter setting of equipment, only need according to the device parameter set when production
Large-scale production can be achieved, drastically increase production efficiency, ensure that the graphene composite material heat conduction being prepared
The high thermal conductivity of film, the flexible substrate after being handled by corona machine, by graphene slurry to hang painting in desk-top coating machine
Mode is coated onto in flexible substrate, solves the problems, such as that existing spraying process is inefficient, can also cause graphene oxide to waste.
Brief description of the drawings
Fig. 1 graphene composite material heat conducting film production system schematic diagrames.
Fig. 2 prestripping schematic devices.
Fig. 3 ultrasound stripping off device schematic diagrames.
Fig. 4 de-airing mixer schematic diagrames.
The desk-top coating machine schematic diagrames of Fig. 5.
Fig. 6 corona machine schematic diagrames.
Fig. 7 two pairs of rollers roll squeezer schematic diagrames.
Wherein, 1- prestrippings device, 2- ultrasound stripping off devices, 3- de-airing mixers, the desk-top coating machines of 4-, 5- vacuum drying
Case, 6- corona machines, 7- two pairs of rollers roll squeezers, the reflux lines of 10- first, 11- reactors, 12- Vltrasonic devices, the ultrasounds of 13- first are anti-
Answer pipeline, the connecting pipes of 14- first, the drainage conduits of 15- first, 16- ball valves, 17- ball valves, 18- ball valves, 19- ball valves, 20- first
Discharge port, 21- flowmeters, 22- centrifugal pumps, the second batch mixings of 23- pond, 24- charging apertures, the reflux lines of 25- second, 26- reactors,
27- Vltrasonic devices, the connecting tubes of 28- second, the discharge ports of 29- second, the drainage conduits of 30- second, 31- charging apertures, 32- agitators, 33-
Vavuum pump, 34- motors, 36- ball valves, 37- ball valves, 41- scrapers, 42- uncoilers, 43- winders, 44- drying boxes, 45- blowings
Tenslator, 46- rewinding tenslators, 47- air driven pumps, 71- frames, 72- upper modules, 73- lower modules, 91- from
Heart pump, 92- flowmeters, 93- ball valves, 94- charging apertures, 95- ball valves, the first batch mixings of 96- pond.
Embodiment
The utility model is further described with reference to embodiment.Wherein, being given for example only property of accompanying drawing
Illustrate, expression is only schematic diagram, rather than pictorial diagram, it is impossible to is interpreted as the limitation to this patent；In order to which this reality is better described
With new embodiment, some parts of accompanying drawing have omission, zoomed in or out, and do not represent the size of actual product；To ability
For field technique personnel, some known features and its explanation may be omitted and will be understood by accompanying drawing.
Embodiment 1
As shown in Fig. 1~7, the present embodiment provides a kind of graphene composite material heat conducting film production system, using expansion stone
Ink is raw material, by process sequence successively include prestripping device 1, ultrasonic stripping off device 2, de-airing mixer 3, desk-top coating machine 4,
Vacuum drying chamber 5 and two pairs of rollers roll squeezer 7, desk-top coating machine 4 are also associated with corona machine 6；Wherein de-airing mixer 3, desk-top coating
Machine 4, vacuum drying chamber 5, corona machine 6 and two pairs of rollers roll squeezer 7 can use existing equipment；
The first circulation system that prestripping device 102 includes the first batch mixing pond 96 and multiple first ultrasonic reaction kettles form,
First ultrasonic reaction kettle includes Vltrasonic device 12 and reactor 11, and the first batch mixing pond 96 is provided with what is be connected with graphite expansion 101
Dog-house 91, upper end are connected by the first reflux line 10 with the first ultrasonic reaction kettle, and lower end passes through the first ultrasonic reaction respectively
Kettle pipeline 13 connects the first ultrasonic reaction kettle, the first connecting pipe 14 is connected with the first discharge port 20, the first ultrasonic reaction kettle pipe
Road 13 is provided with centrifugal pump 22 and flowmeter 21, and multiple first ultrasonic reaction kettles are in difference in height arrangement connection, wherein horizontal level
Connected between minimum the first ultrasonic reaction kettle and the first connecting pipe 14 by the first drainage conduit 15；
The second circulation system that ultrasonic stripping off device 103 includes the second batch mixing pond 23 and multiple second ultrasonic reaction kettles form
System, the second ultrasonic reaction kettle include Vltrasonic device 27 and reactor 26, and the upper end in the second batch mixing pond passes through the second reflux line 25
It is connected with the second ultrasonic reaction kettle, lower end is connected with the second connecting tube 28；Second connecting tube 28 is provided with and the first discharge port 20
Charging aperture 94, centrifugal pump 91, flowmeter 92 and the second discharge port 29 being connected with filter 104 of connection, the second ultrasound are anti-
Answer kettle horizontal level to be sequentially connected, and be provided with air bleeding valve, and be connected by the second drainage conduit 30 with the second connecting tube 28；
De-airing mixer 3 includes charging aperture 31, agitator 32, vavuum pump 33 and motor 34, the discharging of charging aperture 31 and second
Mouth 29 is connected by pipeline；
Desk-top coating machine 4 include scraper 41, uncoiler 42, winder 43, drying box 44, blowing tenslator 45,
Rewinding tenslator 46 and air driven pump 47；
Two pairs of rollers roll squeezer 7 includes frame 71, upper module 72 and lower module 73, and upper module 72 is fixing roller, and lower module 73 is
Movable roll.
The present embodiment operation principle is as follows：
S1. using expanded graphite as raw material, specifically expansion multiple is 200~300；
S2. prestripping：The device parameter of prestripping supersonic reaction device 1 is adjusted, it is specific as follows：Temperature is 40 DEG C, frequency
For 15000 Hz, flow velocity 2m3/ h, circulation stirring speed are 1500r/min, the ultrasonic disperse time is 1 h, will be swollen in step S1
Swollen graphite, which is placed in prestripping supersonic reaction device 1, to react, and obtains prestripping material；
S3. peel off：The device parameter of ultrasonic stripping off device 2 is adjusted, it is specific as follows：Temperature is 40 DEG C, frequency is
20000Hz, flow velocity 3.5m3/ h, circulation stirring speed are 1300r/min, the ultrasonic disperse time is 3h,
Prestripping material in step S2 is mixed with stripper, specifically using graphene quantum dot, placed after five times of dilution
Reacted in ultrasonic stripping off device 2, obtain peeling off material, the prestripping material dispersion is uniform, and specifically, surface is without obvious floating
Shape thing；
S4. separate:Material press filtration, separation will be peeled off in step S3, then collect Graphite Cake, stripper graphene quantum
Point can then recycle；
S5. clean：Graphite Cake in step S4 is cleaned using deionized water, wash number is 8~10 times, obtains stone
Black alkene；
S6. the graphene in step S5 is placed in de-airing mixer 3, adds absolute ethyl alcohol, graphene and absolute ethyl alcohol
Mass ratio be 1:60, set the device parameter of de-airing mixer, specific rotating speed is 1000r/min, stirred tank pressure for-
0.1 Mpa, mixing time 6h, stirring obtain graphene/ethanol mixed slurry；
S7.PET film coronas：Sided corona treatment is carried out to flexible substrate using corona machine 6,30 μm are specifically used in the present embodiment
Thickness PET carries out sided corona treatment, sets the device parameter of corona machine 6, specific as follows：Discharge power is 1KVA, rotating speed 300r/
min；
S8. desk-top coating machine 4 is used to be coated on mixed uniformly graphene/ethanol slurry at corona in a manner of hanging painting
In the PET film managed, the height of scraper 41 is 30 mm；
S9. processing is dried in the coated PET films of step S8, specifically in 60 DEG C of vacuum drying chamber 5, dried
12h；
S10. the heat rolling parameter of two pairs of rollers roll squeezer 7 is set, it is specific as follows：The temperature stabilization of upper module 72 is 100 DEG C, under
The temperature stabilization of module 73 is 100 DEG C, and rotating speed is 60 r/min, and PET base graphene heat conducting films are obtained after carrying out hot rolling processing；
S11. the PET base graphenes heat conducting film after handling rolling carries out cutting edge and handles to obtain the consistent PET/ stones of size
Black alkene composite heat conducting film.
The present embodiment only needs the device parameter by each equipment to set, you can realizes large-scale production, the present embodiment
In the PET/ graphene composite material heat conducting film graphenes coating layer thickness that is prepared be 2~10 μm, thermal diffusion coefficient is 7~
10cm2/ S, thermal conductivity factor are 1500~2000 W/（m·k）, it is significantly better than oxidation-reduction method of the prior art.
Obviously, above-described embodiment is only intended to clearly illustrate the technical solution of the utility model example, and simultaneously
Non- is the restriction to embodiment of the present utility model.For those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms.All made within spirit of the present utility model and principle
All any modification, equivalent and improvement etc., should be included within the protection of the utility model claims.
Claims (4)
- A kind of 1. graphene composite material heat conducting film production system, it is characterised in that expanded graphite is used as raw material, it is suitable by technique Sequence includes prestripping device, ultrasonic stripping off device, de-airing mixer, desk-top coating machine, vacuum drying chamber and two pairs of rollers roll-in successively Machine；The prestripping device includes the first circulation system that the first batch mixing pond and multiple first ultrasonic reaction kettles form, and described the One cycle system is provided with dog-house and the first discharge port；The ultrasonic stripping off device includes the second batch mixing pond and multiple second ultrasounds The second circulation system of reactor composition, the second circulation system are provided with charging aperture and the second discharge port.
- 2. graphene composite material heat conducting film production system according to claim 1, it is characterised in that be additionally provided with and described The corona machine of formula coating machine connection.
- 3. graphene composite material heat conducting film production system according to claim 1, it is characterised in that the desk-top coating machine Including scraper, the height of the scraper and flexible substrate is 10~50mm.
- 4. graphene composite material heat conducting film production system according to claim 1, it is characterised in that the two pairs of rollers roll squeezer Including upper module and lower module, the upper module is fixing roller, and the lower module is movable roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720969592.7U CN207108895U (en) | 2017-08-04 | 2017-08-04 | A kind of graphene composite material heat conducting film production system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720969592.7U CN207108895U (en) | 2017-08-04 | 2017-08-04 | A kind of graphene composite material heat conducting film production system |
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| CN207108895U true CN207108895U (en) | 2018-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720969592.7U Expired - Fee Related CN207108895U (en) | 2017-08-04 | 2017-08-04 | A kind of graphene composite material heat conducting film production system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109179394A (en) * | 2018-09-26 | 2019-01-11 | 长飞光纤光缆股份有限公司 | A kind of direct transfer device of graphene film and method |
| CN109968846A (en) * | 2019-04-30 | 2019-07-05 | 山东华滋自动化技术股份有限公司 | A kind of graphene coating process |
-
2017
- 2017-08-04 CN CN201720969592.7U patent/CN207108895U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109179394A (en) * | 2018-09-26 | 2019-01-11 | 长飞光纤光缆股份有限公司 | A kind of direct transfer device of graphene film and method |
| CN109968846A (en) * | 2019-04-30 | 2019-07-05 | 山东华滋自动化技术股份有限公司 | A kind of graphene coating process |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180316 Termination date: 20200804 |
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| CF01 | Termination of patent right due to non-payment of annual fee |