CN108084464A - A kind of preparation method of heat-conducting polymer material - Google Patents
A kind of preparation method of heat-conducting polymer material Download PDFInfo
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- CN108084464A CN108084464A CN201711433950.3A CN201711433950A CN108084464A CN 108084464 A CN108084464 A CN 108084464A CN 201711433950 A CN201711433950 A CN 201711433950A CN 108084464 A CN108084464 A CN 108084464A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/205—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase
- C08J3/21—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase the polymer being premixed with a liquid phase
- C08J3/215—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase the polymer being premixed with a liquid phase at least one additive being also premixed with a liquid phase
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
Abstract
The present invention provides a kind of preparation method of heat-conducting polymer material, and the preparation method includes at least following steps：1) high molecular material mixed liquor is formed after by high molecular material dissolving in a solvent, adding in heat filling mixing；2）High molecular material mixed liquor with flocculation solvent is mixed and obtains composite material master batch.The present invention can be effectively improved dispersiveness of the heat filling in high molecular material intrinsic silicon by the method for solution blending, so that the thermal conducting path that heat filling is formed in the base can reach another surface from a surface, and the uneven caused heat aggregation of filler distribution is not had.
Description
Technical field
The present invention relates to a kind of high molecular material, more particularly to a kind of preparation method of heat-conducting polymer material.
Background technology
High molecular material compared with metal and inorganic non-metallic material have low processing cost, it is light-weight, easily molded, can return
Receipts, excellent mechanical property are suitable for the characteristics such as scope is wide.It is daily with the people that high molecular material has become the development of the national economy
It lives essential important materials.But high molecular material free electron limitation of movement system and be generally believed that be it is hot absolutely
Edge body, thermal conductivity factor usually in below 0.3W/mK, which greatly limits high molecular material in heat dissipation and Heat Conduction Material field should
With.Therefore, on the premise of high molecular material primary characteristic is ensured, assigning high molecular material heat conductivility can greatly extend
The application range of high molecular material, and be also a very big challenge.
At present, one of method for preparing heat-conducting polymer material is to use high molecular material in itself as raw material, accurate
Under conditions of control heating and stretching, the strand of the high molecular material of ultra high molecular weight is made to be arranged in same direction.Although
High molecular material obtained has very high thermal conductivity factor (104W/ on the direction arranged along strand in this way
MK), but for the rigors of condition control and the selection of raw material, it is not appropriate for producing on a large scale.
In traditional polymer composite production technology, extruding pelletization process is essential.This physics is total to
The defects of mixed method easily causes filler to assemble in high molecular material matrix, formation interiors of products and surface, so as to generation
Performance impacts.
The content of the invention
In view of the foregoing deficiencies of prior art, it is an object of the invention to provide a kind of heat-conducting polymer material,
It is directly granulated based on solwution method, substitutes the production technology of traditional extruding pelletization, for solving macromolecule in the prior art
The problem of thermal conductivity of material is poor, and processing is not easy and high molecular material mixes uneven the defects of causing.
In order to achieve the above objects and other related objects, the present invention is what is realized by including following technical solution.
The present invention provides a kind of preparation method of heat-conducting polymer material, and the preparation method comprises the following steps：
1) high molecular material mixed liquor is formed after by high molecular material dissolving in a solvent, adding in heat filling mixing；
2) high molecular material mixed liquor with flocculation solvent is mixed and obtains composite material master batch.
Then, can the composite material master batch of acquisition be squeezed out to injection molding or coating forms a film.
Preferably, to be counted on the basis of the gross mass of the heat filling and high molecular material, the quality of the heat filling
Percentage composition is 1~44wt%.
Preferably, the high molecular material is selected from makrolon (PC), acrylonitrile-butadiene-styrene (ABS) (ABS), poly- first
One or more in base methyl acrylate (PMMA), polyetherimide (PEI), polystyrene (PS) and polyvinyl alcohol (PVA).
It is highly preferred that the high molecular material is makrolon.It is highly preferred that the makrolon is bisphenol-a polycarbonate.
Preferably, the heat filling is selected from graphite, graphene, carbon nanotubes, boron nitride, aluminium oxide, aluminium nitride, carbon
One or more of SiClx, metallic particles or metal nanometer line are compound.It is highly preferred that the carbon nanotubes is received including single wall carbon
Mitron and multi-arm carbon nano-tube.It is highly preferred that the metal in the metallic particles or metal nanometer line is in silver, gold and copper
It is one or more.It is highly preferred that the heat filling is selected from one or both of graphite and graphene.It is it is highly preferred that described
Graphite average grain diameter is 5~15 μm.It is highly preferred that the grain size of the graphene is 80~650 μm, graphite flake in the graphene
The number of plies is 10~20 layers.
Preferably, when high molecular material is makrolon, the solvent is 1,3-dioxolane；When high molecular material is
During ABS, the solvent is dichloromethane；When high molecular material is polyetherimide, the solvent is N- methyl -2- pyrrolidines
Ketone；When high molecular material is polymethyl methacrylate, the solvent is acetone；When high molecular material is polystyrene,
The solvent is toluene；When high molecular material is polyvinyl alcohol, the solvent is acetic acid.
Preferably, the flocculation solvent is water or organic solvent.
It is highly preferred that when using water as flocculation solvent, surfactant is added in water to reduce water surface tension.
The surfactant appointing in anion surfactant, cationic surfactant and nonionic surfactant
It is a kind of.
Preferably, the anion surfactant includes grade soap, and aliphatic hydrocarbon is generally the length of 11-17 carbon
Chain；Hydrosulphate, fat hydrocarbon chain is between 12-18 carbon；Azochlorosulfonate acid compound, fat hydrocarbon chain is between 8-18 carbon.
Preferably, the cationic surfactant includes amine salt, quaternary ammonium salt, heterocyclic, hello salt form, fat
Fat hydrocarbon chain is between 8-18 carbon.
Preferably, the nonionic surfactant include alkylphenol polyoxyethylene ether, high-carbon fatty alcohol polyoxyethylene ether,
Polyoxyethylene carboxylate, fatty acid methyl ester ethoxylate, polypropylene glycol ethylene oxide adduct, it is polyoxyethylated from
Subtype surfactant, sorbitan ester, sucrose ester and alkylolamides type.
It is highly preferred that the organic solvent is selected from arene, fat hydrocarbon, alicyclic hydrocarbon type, chlorinated hydrocarbons, alcohols, ether
One or more in class, esters, ketone, alcohol derivatives, acetonitrile, pyridine and phenol.It is highly preferred that the flocculation solvent choosing
One or more from water, ethyl alcohol and ethylene glycol.
Preferably, the arene includes the one or more in benzene, toluene and dimethylbenzene.
Preferably, the alicyclic hydrocarbon type includes the one or more in hexamethylene, cyclohexanone and toluene cyclohexanone.
Preferably, the fat hydrocarbon includes the one or more in pentane, hexane and octane.
Preferably, the chlorinated hydrocarbons include the one or more in chlorobenzene, dichloro-benzenes, dichloromethane and chloroform.
Preferably, the alcohols includes one kind or more in methanol, ethyl alcohol, normal propyl alcohol, isopropanol, ethylene glycol and glycerine
Kind.
Preferably, the ethers includes the one or more in ether and propylene oxide.
Preferably, the esters include the one or more in methyl acetate, ethyl acetate and propyl acetate.
Preferably, the ketone includes the one or more in acetone, espeleton and methylisobutylketone.
Preferably, the alcohol derivatives are included in glycol monoethyl ether, ethylene glycol monoethyl ether and ethylene glycol monobutyl ether
It is one or more.
Preferably, mixed method described in step 1) is mixed including ultrasonic disperse, mechanical agitation, magnetic agitation or mixer
It closes.It is highly preferred that mixed method described in step 1) is ultrasonic disperse mixing and magnetic agitation mixing.
Preferably, the composite material master batch obtained in step 2) is 0.005~5mm.
As described above, the preparation method of the heat-conducting polymer material of the present invention, has the advantages that：
The present invention can be effectively improved point of the heat filling in high molecular material intrinsic silicon by the method for solution blending
Property is dissipated, so that the thermal conducting path that heat filling is formed in the base can reach another surface from a surface, and
The uneven caused heat aggregation of filler distribution is not had.Polymer composite mixed liquor after solvent blending can directly be made
Grain and obtain polymer composite master batch.
Description of the drawings
Fig. 1 is the process schematic of the stirring-granulating in the embodiment of the present application.
Fig. 2 is the process schematic of the fluidized granulation in the embodiment of the present application.
Specific embodiment
Before the specific embodiment of the invention is further described, it should be appreciated that protection scope of the present invention is not limited to down
State specific specific embodiment；It is also understood that the term used in the embodiment of the present invention is specific specific in order to describe
Embodiment, the protection domain being not intended to be limiting of the invention.The test method of actual conditions is not specified in the following example,
Condition proposed by usually according to normal condition or according to each manufacturer.
When embodiment provides numberical range, it should be appreciated that except non-invention is otherwise noted, two ends of each numberical range
Any one numerical value can be selected between point and two endpoints.Unless otherwise defined, in the present invention all technologies for using and
Scientific terminology is identical with the normally understood meaning of those skilled in the art of the present technique.Except used in embodiment specific method, equipment,
Outside material, according to record of the those skilled in the art to the grasp of the prior art and the present invention, it can also use and this
Any method, equipment and the material of the similar or equivalent prior art of method, equipment described in inventive embodiments, material come real
The existing present invention.
【High molecular material】
As the high molecular material being used as in the present invention, it is not limited to cited material in the present invention.As long as it looks for
To the corresponding solvent of high molecular material, it is possible to prepare polymer composite by the method in the present invention.In the present invention
Method has fairly good applicability for polymeric material field.
Preferably PC of the invention is as high molecular material, more preferably bisphenol-a polycarbonate (Sabic Products
Lexan141R).As the preferred dioxolanes of solvent of dissolving PC, purity>99%.PC used in the present invention is in dioxolanes
In concentration highest can reach 15wt%, after this concentration, formation gels of the PC in dioxolanes.In addition, dioxy
The purity of penta ring need to ensure more than 99% that the dioxolanes of low-purity is insufficient simultaneously for the PC dissolvings used in the present invention
It is precipitated with the presence of white granular.
【Heat filling】
It is preferably one or more of graphite and graphene as the heat filling being used as in the present invention.
As graphite, one or more of native graphite or various Delaniums can be utilized.As native graphite, go back
Any one of compact crystal shape graphite, crystalline flake graphite and aphanitic graphite can be used.In foregoing illustrative native graphite,
Preferably use flaky graphite.It is pair also comprising kish graphite, decomposition graphite and thermal decomposition graphite etc. as Delanium
Product obtained from amorphous carbon is heat-treated.The preferred acetylene black of used graphite, preferred 8-12 μm of size,
It is the substance with one or more layers graphite platelet structure as graphene.It can be incited somebody to action by the method for ultrasound
The physical method that graphene is removed from thick graphite flake, the method that intercalation can also be aoxidized by strong acid obtain the change of graphene
Method.Compare this two methods, the advantages of ultrasonic physical method is that yield is big, yield is high, and shortcoming is used solvent
Recycling problem；The advantages of method of strong acid oxidation is can to obtain the less graphene of the number of plies, and shortcoming is used
Strong acid is dangerous high.The graphene that graphene used in the present invention is preferably obtained by the method for physics ultrasound, the number of plies are excellent
10-20 layers are selected, preferred 80-650 μm of size.
【Flocculate solvent】
As flocculation solvent, the foundation selected cannot dissolve height for that can dissolve each other with dissolving the solvent of high molecular material
Molecular material.PC and its solvent butyl oxide link used in the present invention, the optional water of flocculation solvent, methanol, ethyl alcohol, acetone, second two
Alcohol etc., preferably water, ethylene glycol.
Water,, will not when being directly added into polymer composite mixed liquor since its surface tension is very big as flocculation solvent
Spheric granules is formed, and film is formed on the surface of water, therefore, it is necessary to add in surfactant in water to reduce its surface
Power.As surfactant, (including higher fatty acid salt, aliphatic hydrocarbon is generally 11-17 carbon to optional anion surfactant
Long-chain；Hydrosulphate, fat hydrocarbon chain is between 12-18 carbon；Azochlorosulfonate acid compound, fat hydrocarbon chain is between 8-18 carbon), sun from
Sub- surfactant (including amine salt, quaternary ammonium salt, heterocyclic, hello salt form, fat hydrocarbon chain is between 8-18 carbon) and
Nonionic surfactant (including alkylphenol polyoxyethylene ether, high-carbon fatty alcohol polyoxyethylene ether, polyoxyethylene carboxylate,
Fatty acid methyl ester ethoxylate, the ethylene oxide adduct of polypropylene glycol, polyoxyethylated ionic surfactant, mistake
Water sorbitol ester, sucrose ester, alkylolamides type) it is any.For different types of surfactant, in water dense
As long as degree is more than when critical micelle concentration can avoid adding in polymer composite mixed liquor forms film on surface.
Organic solvent as flocculation solvent, since its surface tension is respectively less than water, other additives need not be added in and can
To form polymer composite master batch.In addition, that there is a big difference is molten for the boiling point of selection and the solvent of dissolving high molecular material
Agent is used as flocculation solvent, can improve the organic efficiency of the solvent of next step to the greatest extent.For example, selection dioxolanes dissolving
PC can select ethylene glycol as flocculation solvent.Wherein, the boiling point of dioxolanes is 75 DEG C, and the boiling point of ethylene glycol is 197.3
DEG C, it can be obtained by more satisfactory recycling purity when using both solvents of separated.
【Prilling process】
The present invention proposes a kind of new prilling process for being directed to thermoplastic engineering plastic, passes through the method for solution blending
Obtained polymer composite mixed liquor can directly obtain polymer composite master batch by way of stirring or flowing,
So as to eliminate traditional extruding pelletization process.Prilling process proposed by the present invention greatly reduces thermal energy in conventional method
Loss, and by that recycling design can be reused to greatest extent for the selection for the solvent that flocculates, this can be also reduced due to molten
Cost caused by the use of agent.
As the process by stirring-granulating, as shown in Figure 1.Obtained polymer composite mixed liquor is added drop-wise to wadding
In solidifying solvent, by stir flocculation solvent can the particle of polymer composite mixed liquor do not flock together and formed
Polymer composite master batch.Used agitating mode can be mechanical agitation or magnetic agitation.In addition, it is flocculated by heating
Solvent can cause master batch more quickly to solidify.It again can be by polymer composite master batch and mixed solvent point by filtering
From.
As the process by fluidized granulation, as shown in Figure 2.Polymer composite mixed liquor is added drop-wise in flowing
It flocculates in solvent, the flocculation solvent of flowing can prevent adjacent polymer composite master batch adhesion from luming, molten with flocculating
Agent flow on filter screen to collect composite masterbatch, and mixed solvent can be collected in container.
Most polymer composite master batch obtains the master batch that can be molded by drying at last.
Embodiment
Hereinafter, list embodiment and comparative example is specifically explained the present invention, but the present invention is never by these examples
Limitation.
Embodiment 1
1st, makrolon grain (accounting for 99wt% in the composite) is added in dioxolanes under stiring until completely molten
Solution, obtained concentration are 15wt%.
2nd, graphene (accounting for 1wt% in the composite) passes through ultrasonic disperse to dioxolanes according to the concentration of 10mg/mL
In.It is added in after being uniformly dispersed in the dioxolane solution of PC prepared by " 1 ".
3rd, by it is obtained as above to mixed solution ultrasound or stirring 2 it is small when or until being uniformly dispersed.
4th, water is added to immediately in good composite material solution mixed above, and vibrating allows PC uniform with graphene
Precipitation.Sample after precipitation is put into 60 DEG C of drying in baking oven, then prepares the sample of Hong Ganhou by holding the method for pressure
Polymer composite material board.
Embodiment 2
Preparation method accounts for 98wt% in the composite with embodiment 1, wherein PC, and graphene accounts for 2wt%.
Embodiment 3
Preparation method accounts for 96wt% in the composite with embodiment 1, wherein PC, and graphene accounts for 4wt%.
Embodiment 4
1st, makrolon grain (accounting for 70wt% in the composite) is added in dioxolanes under stiring until completely molten
Solution, obtained concentration are 15wt%.
2nd, by powdered graphite (accounting for 30wt% in the composite) be added to it is obtained as above to mixed solution ultrasound or stir
Mix 2 it is small when or until being uniformly dispersed.
3rd, water is added to immediately in good composite material solution mixed above, and vibrating allows PC uniform with graphite
It is precipitated.Sample after precipitation is put into 60 DEG C of drying in baking oven, the sample of Hong Ganhou is then prepared into height by holding the method for pressure
Molecular composite material plate.
Embodiment 5
Preparation method accounts for 60wt% in the composite with embodiment 4, wherein PC, and graphite accounts for 40wt%.
Embodiment 6
Preparation method accounts for 50wt% in the composite with embodiment 4, wherein PC, and graphite accounts for 50wt%.
Embodiment 7
Preparation method accounts for 40wt% in the composite with embodiment 4, wherein PC, and graphite accounts for 60wt%.
Embodiment 8
1st, makrolon grain (accounting for 80wt% in the composite) is added in dioxolanes under stiring until completely molten
Solution, obtained concentration are 15wt%.
2nd, graphite (accounting for 18wt% in the composite) and graphene (accounting for 2wt%) powder are added to obtained by " 1 "
In polycarbonate solution, composite material mixture is obtained.It will be when mixed solution ultrasound or small stirring 2 or until being uniformly dispersed.
3rd, water is added to immediately in good composite material solution mixed above, and vibrating makes PC can with graphite and graphene
To be uniformly precipitated.Sample after precipitation is put into baking oven 60 DEG C of drying, then by the sample of Hong Ganhou by holding the side of pressure
Method prepares polymer composite material board.
Embodiment 9
For preparation method with embodiment 8, wherein PC accounts for 70wt% in the composite, and graphite accounts for 29wt%, and graphene accounts for
1wt%.
Embodiment 10
For preparation method with embodiment 8, wherein PC accounts for 70wt% in the composite, and graphite accounts for 28wt%, and graphene accounts for
2wt%.
Embodiment 11
For preparation method with embodiment 8, wherein PC accounts for 70wt% in the composite, and graphite accounts for 26wt%, and graphene accounts for
4wt%.
Embodiment 12
For preparation method with embodiment 8, wherein PC accounts for 60wt% in the composite, and graphite accounts for 39wt%, and graphene accounts for
1wt%.
Embodiment 13
For preparation method with embodiment 8, wherein PC accounts for 60wt% in the composite, and graphite accounts for 38wt%, and graphene accounts for
2wt%.
Embodiment 14
For preparation method with embodiment 8, wherein PC accounts for 60wt% in the composite, and graphite accounts for 36wt%, and graphene accounts for
4wt%.
Embodiment 15
For preparation method with embodiment 8, wherein PC accounts for 50wt% in the composite, and graphite accounts for 49wt%, and graphene accounts for
1wt%.
Embodiment 16
For preparation method with embodiment 8, wherein PC accounts for 50wt% in the composite, and graphite accounts for 48wt%, and graphene accounts for
2wt%.
Embodiment 17
For preparation method with embodiment 8, wherein PC accounts for 50wt% in the composite, and graphite accounts for 46wt%, and graphene accounts for
4wt%.
Embodiment 18
For preparation method with embodiment 8, wherein PC accounts for 69wt% in the composite, and graphite accounts for 30wt%, and graphene accounts for
1wt%.
Embodiment 19
For preparation method with embodiment 8, wherein PC accounts for 68wt% in the composite, and graphite accounts for 30wt%, and graphene accounts for
2wt%.
Embodiment 20
For preparation method with embodiment 8, wherein PC accounts for 66wt% in the composite, and graphite accounts for 30wt%, and graphene accounts for
4wt%.
Embodiment 21
For preparation method with embodiment 8, wherein PC accounts for 59wt% in the composite, and graphite accounts for 40wt%, and graphene accounts for
1wt%.
Embodiment 22
For preparation method with embodiment 8, wherein PC accounts for 58wt% in the composite, and graphite accounts for 40wt%, and graphene accounts for
2wt%.
Embodiment 23
For preparation method with embodiment 8, wherein PC accounts for 56wt% in the composite, and graphite accounts for 40wt%, and graphene accounts for
4wt%.
Embodiment 24
For preparation method with embodiment 8, wherein PC accounts for 49wt% in the composite, and graphite accounts for 50wt%, and graphene accounts for
1wt%.
Embodiment 25
For preparation method with embodiment 8, wherein PC accounts for 48wt% in the composite, and graphite accounts for 50wt%, and graphene accounts for
2wt%.
Embodiment 26
For preparation method with embodiment 8, wherein PC accounts for 46wt% in the composite, and graphite accounts for 50wt%, and graphene accounts for
4wt%.
Embodiment 30
1st, makrolon grain (accounting for 80wt% in the composite) is added in dioxolanes under stiring until completely molten
Solution, obtained concentration are 15wt%.
2nd, graphite (20wt%) is added in the polycarbonate solution obtained by " 1 ", obtains composite material mixture.It will
When mixed solution ultrasound or small stirring 2 or until being uniformly dispersed.
3rd, by composite material mixture in the case of stirring, it is added dropwise at room temperature containing 1wt% dodecyls
In the aqueous solution of sodium sulphate.After being kept stirring 1h, composite material granular is separated with solvent by woven wire filter.In baking oven 60
DEG C drying can obtain composite material master batch, a diameter of 2mm.
Embodiment 31
The parts by weight and preparation method of used PC and graphite are identical with embodiment 31, obtained mixed liquor directly with
Ethylene glycol is mixed and rocked.Using woven wire filter after composite material solidification, composite material granular is obtained.In 60 DEG C of bakings of baking oven
It is dry to can obtain composite material master batch, a diameter of 0.3-0.8mm.
【Performance characterization】
Polymer composite material board, various experimental results and performance evaluation such as 1 institute of table are obtained according to above-mentioned preparation method
Show.Wherein, the glass transition temperature of the composite material added in after graphite or graphene does not have significant impact, not to institute
There is sample to be tested.By the measure to thermal conductivity factor, one or both of graphite and graphene are added in, highest can reach
To former PC matrixes thermal conductivity factor more than 8 times, it was demonstrated that the heat conductivility of gained composite material increases significantly.
Table 1
The above, be only presently preferred embodiments of the present invention, not to the present invention in any form with substantial limitation,
It should be pointed out that for those skilled in the art, on the premise of the method for the present invention is not departed from, can also make
Several improvement and supplement, these are improved and supplement also should be regarded as protection scope of the present invention.All those skilled in the art,
Without departing from the spirit and scope of the present invention, when made using disclosed above technology contents it is a little more
Dynamic, modification and the equivalent variations developed are the equivalent embodiment of the present invention；Meanwhile all substantial technologicals pair according to the invention
The variation, modification and evolution for any equivalent variations that above-described embodiment is made still fall within the scope of technical scheme
It is interior.
Claims (10)
1. a kind of preparation method of heat-conducting polymer material, which is characterized in that the preparation method includes at least following steps：
1) high molecular material mixed liquor is formed after by high molecular material dissolving in a solvent, adding in heat filling mixing；
2) high molecular material mixed liquor with flocculation solvent is mixed and obtains composite material master batch.
2. preparation method according to claim 1, which is characterized in that the high molecular material is selected from makrolon, propylene
One kind or more in nitrile-butadiene-styrene, polyetherimide, polymethyl methacrylate, polystyrene and polyvinyl alcohol
Kind.
3. preparation method according to claim 1, it is characterised in that：The heat filling is selected from graphite, graphene, carbon
One or more of nanotube, boron nitride, aluminium oxide, aluminium nitride, carborundum, metallic particles or metal nanometer line are compound.
4. preparation method according to claim 2, which is characterized in that described molten when high molecular material is makrolon
Agent is 1,3- dioxolanes；When high molecular material is acrylonitrile-butadiene-styrene (ABS), the solvent is dichloromethane；Work as height
When molecular material is polyetherimide, the solvent is n-methyl-2-pyrrolidone；When high molecular material is polymethylacrylic acid
During methyl esters, the solvent is acetone；When high molecular material is polystyrene, the solvent is toluene；When high molecular material is
During polyvinyl alcohol, the solvent is acetic acid.
5. preparation method according to claim 1, which is characterized in that the flocculation solvent is water or organic solvent.
6. preparation method according to claim 5, which is characterized in that when using water as flocculation solvent, add in water
Enter surfactant to reduce water surface tension.
7. preparation method according to claim 1, which is characterized in that the organic solvent is selected from arene, aliphatic hydrocarbon
One kind in class, alicyclic hydrocarbon type, chlorinated hydrocarbons, alcohols, ethers, esters, ketone, alcohol derivatives, acetonitrile, pyridine and phenol or
It is a variety of.
8. preparation method according to claim 7, which is characterized in that including the one or more in following feature：
The arene includes the one or more in benzene, toluene and dimethylbenzene；
The alicyclic hydrocarbon type includes the one or more in hexamethylene, cyclohexanone and toluene cyclohexanone；
The fat hydrocarbon includes the one or more in pentane, hexane and octane；
The chlorinated hydrocarbons include the one or more in chlorobenzene, dichloro-benzenes, dichloromethane and chloroform；
The alcohols includes the one or more in methanol, ethyl alcohol, normal propyl alcohol, isopropanol, ethylene glycol and glycerine；
The ethers includes the one or more in ether and propylene oxide；
The esters include the one or more in methyl acetate, ethyl acetate and propyl acetate；
The ketone includes the one or more in acetone, espeleton and methylisobutylketone；
The alcohol derivatives include the one or more in glycol monoethyl ether, ethylene glycol monoethyl ether and ethylene glycol monobutyl ether.
9. preparation method according to claim 1, which is characterized in that mixed method described in step 1) includes ultrasound point
It dissipates, mechanical agitation, magnetic agitation or mixer mix.
10. preparation method according to claim 1, which is characterized in that the composite material master batch of acquisition is in step 2)
0.005~5mm.
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| CN110003577A (en) * | 2019-04-24 | 2019-07-12 | 青岛科技大学 | A kind of GO/CNT/IIR high-heat-conductive composite material preparation method |
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| CN1640933A (en) * | 2004-01-13 | 2005-07-20 | 中国科学院成都有机化学有限公司 | Method for preparing polymer/carbon nano composite material |
| WO2015167636A1 (en) * | 2014-02-05 | 2015-11-05 | University Of Houston System | Graft polymerization initiated on graphitic nanomaterials and their nanocomposite formation |
| CN105482417A (en) * | 2015-12-20 | 2016-04-13 | 青岛科技大学 | Method for preparing graphene-containing polymer composite |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110003577A (en) * | 2019-04-24 | 2019-07-12 | 青岛科技大学 | A kind of GO/CNT/IIR high-heat-conductive composite material preparation method |
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