CN107057364A - A kind of high-performance carbon nanotube composite and preparation method thereof - Google Patents
A kind of high-performance carbon nanotube composite and preparation method thereof Download PDFInfo
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- CN107057364A CN107057364A CN201710375262.XA CN201710375262A CN107057364A CN 107057364 A CN107057364 A CN 107057364A CN 201710375262 A CN201710375262 A CN 201710375262A CN 107057364 A CN107057364 A CN 107057364A
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Abstract
The present invention discloses a kind of high-performance carbon nanotube composite and preparation method thereof, wherein, preparation method includes step：CNT is mixed with concentrated nitric acid, 2 4h are stirred under conditions of 50 100 DEG C, oxide/carbon nanometer tube is obtained；The oxide/carbon nanometer tube is added dissolved with the absolute ethyl alcohol of liquid crystal molecule, sequentially passing through grinding, it is ultrasonically treated, finally the 15h of return stirring 10 under conditions of 50 100 DEG C, obtains liquid crystal molecule CNT；The liquid crystal molecule is carbon nano-tube filled into matrix material, obtain liquid crystal molecule CNT/matrix composite；In the present invention, liquid crystal molecule can play function served as bridge, it ensure that dispersiveness and compatibility of the CNT in matrix material are greatly improved, while the CNT after liquid crystal molecule is modified can be obviously improved the heat conductivility and mechanical property of matrix material.
Description
Technical field
The present invention relates to carbon nano-tube material field, more particularly to a kind of high-performance carbon nanotube composite and its preparation
Method.
Background technology
CNT is due to excellent light, electricity, magnetic, mechanically and chemically heat, performance, in functional material, structural material
With having many special applications in terms of nano-device, while making it due to nano level diameter and great aspect ratio again
Become the preferable reinforcing agent of high intensity polymer composite.
But the influence of the property and Van der Waals interaction due to CNT itself so that CNT easy entanglement group
It is poly-；And the CNT difficult dispersed, disorderly arranged and weak compatibility in the base and interfacial adhesion, cut
Feature and structural re-enforcement weak and that reduce CNT imparting polymer.
In order to give full play to the excellent properties of CNT, it is necessary to solve two problems：First, CNT is improved in height
Degree of scatter in molecular matrix；Second, improve the interfacial adhesion strength between CNT and polymer matrix.Therefore, pass through
The research for applying to polymer after certain intermediate material is carbon nano-tube modified again is attracted wide attention.
At present, carbon nano tube surface, which carries out functional modification, mainly two kinds of approach：1st, by covalent bond, CNT is made
Surface connects functional group, so as to improve degree of scatter；2nd, by non-covalent bond, i.e. the not structure of destroying carbon nanometer tube, by altogether
Yoke structure is modified carbon nano tube surface.
But both modifications respectively have its advantage and disadvantage, relative to non-covalent bond modification, in covalent bond modification connection
Between material and CNT bond energy it is bigger, can more effectively strengthen mechanical properties of polymer, be aoxidized yet with CNT
Journey can reduce its castering action to polymer bond's performance to itself structural damage, although and non-covalent bond is modified not
The mechanical property of polymer can be remarkably reinforced, can but keep carbon nano tube structure constant and play the excellent heat conductivity of itself
Energy；Therefore, prior art need badly it is a kind of can be while strengthening the process of the heat conductivility and mechanical property of CNT.
The content of the invention
In view of above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of high-performance carbon nanotube composite
And preparation method thereof, it is intended to the heat conduction and mechanical property for solving existing CNT can not be while the problem of getting a promotion.
Technical scheme is as follows：
A kind of preparation method of high-performance carbon nanotube composite, wherein, including step：
A, CNT mixed with concentrated nitric acid, 2-4h is stirred under conditions of 50-100 DEG C, oxide/carbon nanometer tube is obtained；
B, the oxide/carbon nanometer tube added dissolved with the absolute ethyl alcohol of liquid crystal molecule, sequentially passing through grinding, it is ultrasonically treated, most
The return stirring 10-15h under conditions of 50-100 DEG C, obtains liquid crystal molecule-CNT afterwards；
C, by the liquid crystal molecule-carbon nano-tube filled into matrix material, obtain liquid crystal molecule-CNT/matrix and be combined
Material.
The preparation method of described high-performance carbon nanotube composite, wherein, the sonication treatment time in the step B
For 0.5-2h.
The preparation method of described high-performance carbon nanotube composite, wherein, the step B also includes：Stirred in backflow
After mixing, obtained solution is poured out and evaporative removal ethanol, 12-36h is dried in vacuo under conditions of 60-120 DEG C afterwards, finally
Obtain dry liquid crystal molecule-CNT.
The preparation method of described high-performance carbon nanotube composite, wherein, the step C is specifically included：
C1, the liquid crystal molecule-CNT added in matrix material, carried out after stirring ultrasonically treated；
C2, addition platinum catalyst and inhibitor, stand after stirring, and inject mould after standing, finally sequentially pass through vacuum
After dry, solidification, cooling treatment, liquid crystal molecule-CNT/matrix composite is obtained.
The preparation method of described high-performance carbon nanotube composite, wherein, the inhibitor in the step C2 is 1-
Ethynylcyclohexanol.
The preparation method of described high-performance carbon nanotube composite, wherein, the step C2 is specially：It will inject molten
The mould of liquid is placed in vacuum drying chamber, and dry 1-3h is vacuumized under conditions of 50-100 DEG C, the 1-3h of normal pressure solidification afterwards,
Finally cool down the liquid crystal molecule-CNT/matrix composite being molded.
The preparation method of described high-performance carbon nanotube composite, wherein, the mould is strip mould, circle
Mould or point-like mould.
The preparation method of described high-performance carbon nanotube composite, wherein, the liquid crystal molecule be 4- hydroxyls -4 ' -
One kind in allyloxy biphenyl, -4 '-pentylbiphenyl of 4- cyano group, 4- -4 '-octyloxy of cyano group biphenyl or polyesterimide.
The preparation method of described high-performance carbon nanotube composite, wherein, described matrix material is polysiloxanes, ring
One kind in oxygen tree fat or polyurethane.
A kind of high-performance carbon nanotube composite, wherein, it is combined using as above any described high-performance carbon nanotube
The preparation method of material is prepared from.
Beneficial effect：The invention provides a kind of high-performance carbon nanotube composite and preparation method thereof, use first
Liquid crystal molecule carries out the functional modification of covalent bond and non-covalent bond to CNT simultaneously, then by the liquid crystal after modification point
Son-carbon nano-tube filled into matrix material, is made high performance liquid crystal molecule-CNT/matrix composite；In this hair
In bright, liquid crystal molecule can play function served as bridge, it is ensured that dispersiveness and compatibility of the CNT in matrix material are significantly
Improve, while the CNT after liquid crystal molecule is modified can be obviously improved the heat conductivility and mechanical property of matrix material
Energy.
Brief description of the drawings
Fig. 1 is a kind of flow chart of the preparation method preferred embodiment of high-performance carbon nanotube composite of the invention；
Fig. 2 prepares schematic diagram for oxide/carbon nanometer tube of the present invention；
Fig. 3 passes through non-covalent bond modified carbon nano-tube schematic diagram for AOBPO in the present invention；
Fig. 4 passes through covalent modification CNT schematic diagram for AOBPO in the present invention；
Fig. 5 is the fluorogram of AOBPO, CNT and AOBPO- CNTs in the present invention；
Fig. 6 is the infrared spectrogram of part oxide/carbon nanometer tube and AOBPO- CNTs in the present invention；
Fig. 7 is the Raman spectrogram of CNT and AOBPO- CNTs in the present invention；
Fig. 8 for CNT, oxide/carbon nanometer tube, AOBPO- CNTs and AOBPO in the present invention Raman spectrogram；
Electron microscope when Fig. 9 disperses for CNT unmodified in the present invention in polysiloxanes；
Electron microscope during scattered in polysiloxanes of CNT that Figure 10 modifies for AOBPO in the present invention；
Figure 11 is the AOBPO- carbon nano-tube/polies silicone composite material of different carbon nano-particles contents in the present invention and carbon nanometer
The thermal conductivity change schematic diagram of pipe/polysiloxanes composite；
Figure 12 is the AOBPO- carbon nano-tube/polies silicone composite material of different carbon nano-particles contents in the present invention and carbon nanometer
The elastic modulus change schematic diagram of pipe/polysiloxanes composite；
Figure 13 is the AOBPO- carbon nano-tube/polies silicone composite material of different carbon nano-particles contents in the present invention and carbon nanometer
The tensile strength change schematic diagram of pipe/polysiloxanes composite.
Embodiment
The present invention provides a kind of high-performance carbon nanotube composite and preparation method thereof, to make the purpose of the present invention, skill
Art scheme and effect are clearer, clear and definite, and the present invention is described in more detail below.It should be appreciated that tool described herein
Body embodiment only to explain the present invention, is not intended to limit the present invention.
The present invention provides a kind of preparation method of high-performance carbon nanotube composite, wherein, including step：
S100, CNT mixed with concentrated nitric acid, 2-4h is stirred under conditions of 50-100 DEG C, oxide/carbon nanometer tube is obtained；
S200, the oxide/carbon nanometer tube added dissolved with the absolute ethyl alcohol of liquid crystal molecule, sequentially passing through grinding, it is ultrasonic at
Reason, finally the return stirring 10-15h under conditions of 50-100 DEG C, obtains liquid crystal molecule-CNT；
S300, by the liquid crystal molecule-carbon nano-tube filled into matrix material, obtain liquid crystal molecule-CNT/matrix multiple
Condensation material.
Specifically, the carrier that CNT conducts as heat conduction, high-strength functional, good point in polymeric matrix
Keep certain structural integrity for making full use of the peculiar property of CNT while scattered, improve CNT/matrix and be combined
The performance of material, there is great importance.The present invention carries out covalent bond and non-co- simultaneously by liquid crystal molecule to CNT
The functional modification modification of valence link can not only improve its dispersiveness in matrix material, enhancing nanotube and the phase between matrix
Capacitive, additionally it is possible to fully ensure that complete in certain structure of CNT, is a kind of to improve carbon nano tube compound material performance
Effective ways.
Preferably, the liquid crystal molecule that the present invention is used is 4- hydroxyl -4 '-allyloxy biphenyl（AOBPO）, 4- cyano group -4 ' -
Pentylbiphenyl（5CB）, 4- cyano group -4 '-octyloxy biphenyl（8OCB）Or polyesterimide（PUI）In any one, but do not limit
In this；Described matrix material is any one in the macromolecule polymer materials such as polysiloxanes, epoxy resin or polyurethane, but
Not limited to this.
The present invention is exemplified by preparing AOBPO- carbon nano-tube/poly silicone composite materials below, to a kind of high property of the present invention
The preparation method of energy carbon nano-composite material is illustrated：
Specifically, as indicated in step sloo, CNT is mixed with concentrated nitric acid, at 50-100 DEG C（It is preferred that 80 DEG C）Under conditions of
Stir 2-4h（It is preferred that 3h）, reaction completes and after cooling down, and is washed with deionized water and saturated sodium bicarbonate solution to neutrality, finally
By obtaining oxide/carbon nanometer tube after suction filtration drying process；The present invention is handled and can prepared to CNT progress by concentrated nitric acid
Oxide/carbon nanometer tube, makes to add the functional groups such as hydroxyl, carboxyl on CNT, and it chemically reacts as shown in Figure 2.
Further, in the step S200, the oxide/carbon nanometer tube is added dissolved with liquid crystal molecule（AOBPO）Nothing
In water-ethanol, sequentially pass through grinding, it is ultrasonically treated, finally the return stirring 10-15h under conditions of 50-100 DEG C, is obtained
AOBPO- CNTs；
Specifically, the chemical formula of AOBPO materials is, have on the molecular structure of the material
Active hydroxy functional group and biphenyl structural；Hydroxyl on AOBPO molecules can pass through chemistry with the carbonyl on oxide/carbon nanometer tube
Bond close, and AOBPO biphenyl can with the benzene ring structure on CNT by π-πconjugation with non-covalent bond effect knot
Close；The process that wherein AOBPO is combined with oxide/carbon nanometer tube with non-covalent bond is as shown in figure 3, in order to protrude AOBPO and carbonoxide
The cohesive process of nanotube, the carboxyl and hydroxyl in oxide/carbon nanometer tube are not identified in figure 3；Wherein AOBPO and oxygen
The process that carbon nano tube is combined with chemical covalent bonds is as shown in Figure 4.Obviously, the present invention can be by using AOBPO molecules simultaneously
Realize the functional modification that covalent bond and non-covalent bond are carried out to oxide/carbon nanometer tube.
Further, in the step S200, after oxide/carbon nanometer tube and the grinding of AOBPO molecules, ultrasound is carried out to it
Handle 0.5-2h（It is preferred that 1h）, may be such that the CNT for being easy to reunite scatter and and AOBPO points by ultrasonic disperse technology
Sub mutually intercalation is dispersed, treats that ultrasound terminates rear oxidation CNT and rearranges aggregation, AOBPO molecules and carbonoxide nanometer
Pipe is combined due to π-πconjugation with non-covalent bond, as shown in Figure 3；
Further, the solution after will be ultrasonically treated is at 50-100 DEG C（It is preferred that 70 DEG C）Under conditions of return stirring 10-15h（It is excellent
Select 12h）So that the hydroxyl of AOBPO molecules group corresponding on oxide/carbon nanometer tube is combined with covalent bond effect, such as Fig. 4 institutes
Show；Preferably, after return stirring, obtained solution is poured out and evaporative removal ethanol, afterwards at 60-120 DEG C（It is preferred that 80
℃）Under conditions of be dried in vacuo 12-36h（24h）, finally obtain dry liquid crystal molecule（AOBPO）- CNT.
Further, the step S300, by the liquid crystal molecule-carbon nano-tube filled into matrix material, obtain liquid crystal
Molecule-CNT/matrix composite is specifically included：
S310, the liquid crystal molecule-CNT added in matrix material, carried out after stirring ultrasonically treated；
S320, addition platinum catalyst and inhibitor, are stood after stirring, and mould is injected after standing, are finally sequentially passed through true
After empty dry, solidification, cooling treatment, liquid crystal molecule-CNT/matrix composite is obtained.
Specifically, in advance by liquid crystal molecule（AOBPO）- CNT adds matrix material（Polysiloxanes）In, stirring
Ultrasonic disperse 10-15min after uniform, then adds platinum catalyst, 1- ethynylcyclohexanols（Inhibitor）, it is quiet after stirring
20-40min is put, the AOBPO- carbon nano-tube/polies silicone composite material configured is injected in mould, the mould is placed
In vacuum drying chamber, dry 1-3h is vacuumized under conditions of 50-100 DEG C, the 1-3h of normal pressure solidification afterwards, finally cooling is obtained
The AOBPO- carbon nano-tube/poly silicone composite materials of shaping；Preferably, the mould be strip mould, circular die or
Point-like mould.
The present invention carries out the functional modification of covalent bond and non-covalent bond by AOBPO molecules to oxide/carbon nanometer tube, with
The carbon nano-tube filled polysiloxanes matrix material of functional modification, with improve CNT in the base dispersiveness and with
The compatibility of matrix, improves polysiloxanes heat conductivility, and keeps the structural intergrity of CNT, gives full play to it and is carrying
Effect in high polymer mechanical property and heat conductivility；
AOBPO materials had both obtained the mobility of liquid in the molten state, also remained with molecules align one-dimensional or two
Dimension is orderly, and anisotropy is shown in physical property.Therefore, the present invention, which not only has, can reduce the reunion of CNT,
And the compatibility between polymeric matrix can be improved, and keep the structural intergrity of CNT；Carbon can also be made to receive simultaneously
Mitron ordered orientation in polymeric matrix, more fully plays its excellent heat transfer character, finally gives heat conductivility excellent
Different AOBPO- carbon nano-tube/poly silicone composite materials.
Based on the above method, present invention also offers a kind of high-performance carbon nanotube composite, wherein, using such as taking up an official post
The preparation method of high-performance carbon nanotube composite described in one is prepared from.
Below by specific embodiment, the present invention is described in detail.Liquid crystal molecule in embodiment by taking AOBPO as an example,
Matrix material is by taking polysiloxanes as an example.
Embodiment
1st, the preparation of oxide/carbon nanometer tube
4g CNTs and 100ml concentrated nitric acids are weighed in 250ml three-necked flask, 3h is stirred at 80 DEG C, after cooling, is spent
Ionized water and saturated sodium bicarbonate solution are washed to neutrality, suction filtration, are dried to obtain oxide/carbon nanometer tube；
2nd, the preparation of AOBPO- CNTs
Weigh 1g-1.5g and be dissolved in the beaker equipped with 15mL absolute ethyl alcohols and stir, add 1.8g oxide/carbon nanometer tubes, pour into
Mixing suspension is poured into beaker and adds 120mL absolute ethyl alcohols, 250mL is poured into after ultrasonic disperse 1h by mortar grinder to tiny
In three-necked flask, then 70 DEG C of return stirring 12h pour out solution and evaporative removal ethanol, and wash residual ethanol, by gained
Product obtains AOBPO- CNTs in being dried in vacuo 24h at 80 DEG C.
3rd, the preparation of AOBPO- carbon nano-tube/polies silicone composite material
10g polysiloxanes is weighed in 25mL small beakers, the AOBPO/ CNTs of certain mass fraction are added, it is ultrasonic after stirring
Scattered 10-15min, adds platinum catalyst, inhibitor（1- ethynylcyclohexanols）Deng placing 30min after stirring.It will match somebody with somebody
The polyorganosiloxane resin injection mould made（Strip, circle）In, it is placed in vacuum drying chamber 70 DEG C and persistently vacuumizes drying
Normal pressure solidifies 2h under 2h, certain temperature.Cooling, takes out the sample after shaping.
4th, performance and characterization test
The present embodiment is respectively adopted XRF, FT-IR, Raman spectrometer, TGA and characterized between AOBPO and CNT
Combination carried out it is demonstrated experimentally that in fluorogram shown in Fig. 5, the fluorescent quenching that AOBPO- CNTs occur shows
There is intermolecular force between AOBPO and CNT（π-π interact）；AOBPO- CNTs shown in Fig. 6 are red
Shown in characteristic group absworption peak and Fig. 7 on outer peak on Raman spectrogram ID/IG values change, illustrate inside CNT table
There is chemical bond between the oxy radical and AOBPO molecules of residual；TGA curves shown in Fig. 8 are then further demonstrated
AOBPO molecules are acted on the functional modification of CNT；By both having contained between the provable AOBPO of above-mentioned experiment and CNT
There is non-covalent bond, also contain covalent bond.
Further, the present embodiment is also using the unmodified CNT of scanning electron microscope observation and the carbon nanometer of AOBPO modifications
Pipe deployment conditions in polysiloxanes, as shown in Figure 9 and Figure 10, are found, unmodified CNT is in poly- silica by observing
It is easy to reunite in alkane, disperses mixed and disorderly, and the CNT of AOBPO modifications is uniformly dispersed in polysiloxanes and relatively more whole
Together, do not occur agglomeration；This be due into after AOBPO molecules are combined with CNT by covalent bond and non-covalent bond,
AOBPO can ensure that CNT being uniformly dispersed in polysiloxanes as organic molecule with good compatible of polysiloxanes,
Compatibility is good, and AOBPO is used as liquid crystal molecule, the proper alignment distribution under heating molten condition, it is ensured that carbon nanometer
Pipe can compare orderly arrangement in polysiloxanes.
Further, the present embodiment also by thermal conductivity factor instrument to the nano combined hot material of carbon nano-tube/poly siloxanes,
The nano combined hot material heat conductivility of AOBPO- carbon nano-tube/poly siloxanes is tested, as a result as shown in figure 11；Can from Figure 11
To find out, the thermal conductivity factor of pure polysiloxanes is only 0.079 W/ (m K), carbon nano-tube filled through CNT and AOBPO-
Afterwards, heat conductivility is improved, and with the increase of nanoparticle content, polysiloxanes composite heat conductivility constantly increases
Plus, increase trend, which has, to diminish greatly；
Relatively unmodified CNT, AOBPO- CNTs improve highly significant to the heat conductivility of polysiloxanes, and not
Heat conductivility with the AOBPO- carbon nano-tube/poly silicone composite materials under nanoparticle content is all higher than carbon nano-tube/poly
Silicone composite material.The shortcomings of CNT is due to reunion and with polysiloxanes poor compatibility causes its excellent heat conducting performance not
It can play, it is unobvious to the lifting of polysiloxanes heat conductivility, and it is modified by AOBPO, due to dispersiveness raising, and with
Polysiloxanes compatibility strengthens, to the lifting of polysiloxanes composite heat conductivility clearly, when content is 5wt%,
The thermal conductivity factor of AOBPO- carbon nano-tube/poly silicone composite materials reaches 1.176W/ (m K), about pure polysiloxanes material
Expect thermal conductivity factor 14 times are higher about than the thermal conductivity factor without the AOBPO carbon nano-tube/poly silicone composite materials being modified
183.5%
Further, the present invention also by electronic tensile machine to the nano combined hot material of carbon nano-tube/poly siloxanes and AOBPO-
The modulus of elasticity and tensile strength of carbon nano-tube/poly siloxanes nano composite material are tested, as a result such as Figure 12 and Figure 13 institutes
Show；
The modulus of elasticity of pure polysiloxanes be 3.826MPa, when with CNT and AOBPO- CNTs to polysiloxane-modified
Afterwards, the lifting of polysiloxanes Modulus of Composites is notable, as can be seen from Figure 12 the AOBPO- under different nanoparticle contents
The modulus of elasticity of carbon nano-tube/poly silicone composite material is all higher than carbon nano-tube/poly silicone composite material, but springform
Amount can't increase with the increase of nanoparticle content, but occur in that downward trend after first increase, illustrate that modification is received
Rice corpuscles content, which has optimum value, makes polysiloxanes Modulus of Composites reach maximum；CNT due to easily reunite and with
The shortcomings of polysiloxanes poor compatibility, causes its excellent mechanical performance to fail performance, and the lifting of silicone elastomer modulus is not also shown
Write, and pass through AOBPO liquid crystal it is modified, due to AOBPO- CNTs in polysiloxanes dispersiveness improve, and with poly- silicon
Oxygen alkane compatibility strengthens, and silicone elastomer modulus is lifted very big；When AOBPO- content of carbon nanotubes is 1wt%,
AOBPO- carbon nano-tube/poly silicone composite materials tensile strength is maximum, 13.853MPa is reached, with respect to silicone elastomer mould
Amount lifting about 482%, about 38% is improved than same amount carbon nano-tube/poly silicone composite material.
As can be seen from Figure 13, relatively unmodified CNT, stretching of the AOBPO- CNTs to polysiloxanes is strong
Degree improves highly significant, and the modulus of elasticity of pure polysiloxanes is only 0.605MPa, when the CNT and AOBPO- with 0.5wt%
CNT（Content of carbon nanotubes is 0.5wt% in composite, similarly hereinafter）After polysiloxane-modified, polysiloxanes composite wood
Expect that modulus of elasticity lifting is obvious, and increase with the increase of nano-particle mass fraction, if continuing to increase nanoparticle content,
Polysiloxanes composite required by mould will be unable to shaping, so the AOBPO- carbon nano-tube/poly silicon of test mechanical property
The nanoparticle content of oxygen alkane composite is 2.0wt% to the maximum, and tensile strength reaches 3.528MPa, and relatively pure polysiloxanes is carried
High by 483%, the carbon nano-tube/poly silicone composite material of relative filling same amount CNT improves 33%.
In summary, the invention provides a kind of high-performance carbon nanotube composite and preparation method thereof, use first
Liquid crystal molecule carries out the functional modification of covalent bond and non-covalent bond to CNT simultaneously, then by the liquid crystal after modification point
Son-carbon nano-tube filled into matrix material, is made high performance liquid crystal molecule-CNT/matrix composite；In this hair
In bright, liquid crystal molecule can play function served as bridge, it is ensured that dispersiveness and compatibility of the CNT in matrix material are significantly
Improve, while the CNT after liquid crystal molecule is modified can be obviously improved the heat conductivility and mechanical property of matrix material
Energy.
It should be appreciated that the application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can
To be improved or converted according to the above description, all these modifications and variations should all belong to the guarantor of appended claims of the present invention
Protect scope.
Claims (10)
1. a kind of preparation method of high-performance carbon nanotube composite, it is characterised in that including step：
A, CNT mixed with concentrated nitric acid, 2-4h is stirred under conditions of 50-100 DEG C, oxide/carbon nanometer tube is obtained；
B, the oxide/carbon nanometer tube added dissolved with the absolute ethyl alcohol of liquid crystal molecule, sequentially passing through grinding, it is ultrasonically treated, most
The return stirring 10-15h under conditions of 50-100 DEG C, obtains liquid crystal molecule-CNT afterwards；
C, by the liquid crystal molecule-carbon nano-tube filled into matrix material, obtain liquid crystal molecule-CNT/matrix and be combined
Material.
2. the preparation method of high-performance carbon nanotube composite according to claim 1, it is characterised in that the step
Sonication treatment time in B is 0.5-2h.
3. the preparation method of high-performance carbon nanotube composite according to claim 1, it is characterised in that the step
B also includes：After return stirring, obtained solution is poured out and evaporative removal ethanol, it is true under conditions of 60-120 DEG C afterwards
Sky dries 12-36h, finally obtains dry liquid crystal molecule-CNT.
4. the preparation method of high-performance carbon nanotube composite according to claim 1, it is characterised in that the step
C is specifically included：
C1, the liquid crystal molecule-CNT added in matrix material, carried out after stirring ultrasonically treated；
C2, addition platinum catalyst and inhibitor, stand after stirring, and inject mould after standing, finally sequentially pass through vacuum
After dry, solidification, cooling treatment, liquid crystal molecule-CNT/matrix composite is obtained.
5. the preparation method of high-performance carbon nanotube composite according to claim 4, it is characterised in that the step
Inhibitor in C2 is 1- ethynylcyclohexanols.
6. the preparation method of high-performance carbon nanotube composite according to claim 4, it is characterised in that the step
C2 is specially：The mould for injecting solution is placed in vacuum drying chamber, dry 1-3h is vacuumized under conditions of 50-100 DEG C,
The 1-3h of normal pressure solidification afterwards, finally cools down the liquid crystal molecule-CNT/matrix composite being molded.
7. the preparation method of high-performance carbon nanotube composite according to claim 4, it is characterised in that the mould
For strip mould, circular die or point-like mould.
8. the preparation method of high-performance carbon nanotube composite according to claim 1, it is characterised in that the liquid crystal
Molecule is 4- -4 '-allyloxys of hydroxyl biphenyl, -4 '-pentylbiphenyl of 4- cyano group, 4- -4 '-octyloxy of cyano group biphenyl or polyester acyl
One kind in imines.
9. the preparation method of high-performance carbon nanotube composite according to claim 1, it is characterised in that described matrix
Material is one kind in polysiloxanes, epoxy resin or polyurethane.
10. a kind of high-performance carbon nanotube composite, it is characterised in that using the high property as described in claim 1 ~ 9 is any
The preparation method of energy carbon nano tube compound material is prepared from.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110467176A (en) * | 2018-05-09 | 2019-11-19 | 许昌学院 | A kind of functionalized carbon nano-tube composite material, preparation method and polarizer |
| CN111799361A (en) * | 2020-06-12 | 2020-10-20 | 深圳大学 | Liquid crystal carbon nanotube composite thermoelectric material and preparation method thereof |
| CN112694081A (en) * | 2021-01-18 | 2021-04-23 | 陕西科技大学 | High-concentration carbon nanotube slurry and preparation method thereof |
| WO2022206509A1 (en) * | 2021-03-31 | 2022-10-06 | 华为技术有限公司 | Thermally-conductive material and fabrication method therefor, prepreg, laminate, and circuit board |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110467176A (en) * | 2018-05-09 | 2019-11-19 | 许昌学院 | A kind of functionalized carbon nano-tube composite material, preparation method and polarizer |
| CN110467176B (en) * | 2018-05-09 | 2020-10-02 | 许昌学院 | Functionalized carbon nanotube composite material, preparation method thereof and polarizing device |
| CN111799361A (en) * | 2020-06-12 | 2020-10-20 | 深圳大学 | Liquid crystal carbon nanotube composite thermoelectric material and preparation method thereof |
| CN111799361B (en) * | 2020-06-12 | 2024-04-02 | 深圳大学 | Liquid crystal carbon nano tube composite thermoelectric material and preparation method thereof |
| CN112694081A (en) * | 2021-01-18 | 2021-04-23 | 陕西科技大学 | High-concentration carbon nanotube slurry and preparation method thereof |
| CN112694081B (en) * | 2021-01-18 | 2024-02-06 | 陕西科技大学 | High-concentration carbon nano tube slurry and preparation method thereof |
| WO2022206509A1 (en) * | 2021-03-31 | 2022-10-06 | 华为技术有限公司 | Thermally-conductive material and fabrication method therefor, prepreg, laminate, and circuit board |
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