CN105536585A - Dispersion method for carbon nanotubes - Google Patents
Dispersion method for carbon nanotubes Download PDFInfo
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- CN105536585A CN105536585A CN201510963821.XA CN201510963821A CN105536585A CN 105536585 A CN105536585 A CN 105536585A CN 201510963821 A CN201510963821 A CN 201510963821A CN 105536585 A CN105536585 A CN 105536585A
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- electrode
- dispersion method
- adhesive
- nano tube
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000006185 dispersion Substances 0.000 title claims abstract description 27
- 229910021393 carbon nanotube Inorganic materials 0.000 title claims abstract description 26
- 239000002041 carbon nanotube Substances 0.000 title claims abstract description 26
- 239000000203 mixture Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000010892 electric spark Methods 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 239000000853 adhesive Substances 0.000 claims description 23
- 230000001070 adhesive effect Effects 0.000 claims description 23
- 239000008240 homogeneous mixture Substances 0.000 claims description 7
- 238000010891 electric arc Methods 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 229910021392 nanocarbon Inorganic materials 0.000 claims description 5
- 239000002086 nanomaterial Substances 0.000 claims description 3
- 238000009736 wetting Methods 0.000 claims 1
- 238000002360 preparation method Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000011230 binding agent Substances 0.000 abstract 2
- 210000002381 plasma Anatomy 0.000 abstract 1
- 238000003825 pressing Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005411 Van der Waals force Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/50—Mixing liquids with solids
- B01F23/51—Methods thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a dispersion method for carbon nanotubes, belonging to the field of new materials. The method comprises the following steps: (1) mixing the carbon nanotubes with a binder; (2) pressing the obtained mixture so as to prepare an electrode; (3) connecting the electrode with a negative electrode of a direct-current power supply, and using materials like metal as a positive electrode of the power supply; (4) keeping a certain distance between the positive electrode and the negative electrode of the power supply; and (5) turning on the power supply so as to generate electro-induced heat sources like electric arcs, plasmas and electric sparks with a certain strength between the two electrodes of an electric circuit, and subjecting the binder absorbed by the carbon nanotubes to phase change under the action of high temperature so as to effectively disperse the carbon nanotubes. The invention has the following beneficial effects: the dispersion method for the carbon nanotubes provided by the invention has obvious dispersion effect and is easy to realize large-scale preparation.
Description
Technical field:
The invention belongs to field of new, relate to a kind of process for dispersing of CNT.
Background technology:
CNT is that graphite flake is curling according to certain helical angle, diameter is nano level tube-like materials.It has very large draw ratio, and heat exchange performance is alongst better, and the heat exchange performance of its vertical direction is lower, utilizes its anisotropy by suitable orientation, can obtain the composite with superior heat conductivility.But owing to having stronger Van der Waals force between CNT, add its very large draw ratio, cause it very easily to occur reunite thus reduce its performance in production and application process.And in use, often the aggregate of CNT fully will be disperseed just can reach desirable result of use.
The excellent properties of CNT makes it have a wide range of applications in military project, space flight and civilian production enterprise, the such as coating of airplane hidden material, CNT is added to strengthen its mechanical performance and lighter weight in space material, and some civilian High-molecular rubber material, the application of the materials such as Mobile phone screen.But the reuniting effect of CNT have impact on the performance of its excellent properties, the main dispersion means of present stage China's CNT research field comprise grinding, ultrasonic wave dispersion, strong acid-base process, but these methods are only limitted to the laboratory research stage, produce the solution also not yet in effect so far of scattered CNT on a large scale.The state such as American-European to the research main points of CNT prior to us, but they make us cannot obtain the method for effectively dispersion for the blockade of technology, the process for dispersing of a kind of CNT that the application proposes is intended to a kind of method of seeking dispersing Nano carbon tubes that can be mass-produced, break the barrier of developed country for dispersing Nano carbon tubes method, for the research of China's CNT gives a favor, CNT is applied widely in the field such as military project, space flight.
Summary of the invention:
For the deficiency of above-mentioned existing dispersion technology, the invention provides the more thorough and quick carbon nano tube dispersion method that also can meet industrialization of a kind of dispersion.
Dispersion technology scheme of the present invention is: be first preparation for the CNT that the disperses mixture with adhesive, its formula is a certain proportion of CNT and adhesive.Nano material is mixed with certain proportion with adhesive, then with mechanical pressurization, mixture is pressed into solid-state, the semisolid electrode of definite shape, with obtained carbon nanotube mixture electrode be extremely connected with one of dc source (with power cathode be connected to should), the electrode that another pole of power supply of making by the material such as graphite, metal afterwards and carbon nanotube mixture form keeps certain slight distance.Switch on power, connect circuit and make the electroluminescent thermal source such as electric arc, plasma, electric spark producing some strength between two electrodes, the high temperature utilizing above-mentioned thermal source to produce puts on carbon nanotube mixture electrode surface, under high temperature action, the adhesive that CNT absorbs undergoes phase transition, by the rapid expansion of volume with dispersing Nano carbon tubes aggregate.Above-mentioned near heating sources by airflow apparatus produce air-flow the CNT of be dispersed in gas-phase space be transported to knot screen to slough the residual adhesive accompanying by CNT, then to be drawn to collecting or the region of processing further by air-flow.
Its preparation technology comprises the following steps:
(1) by one or more Homogeneous phase mixing in the CNT of preparation dispersion and a certain proportion of adhesive, mixed proportion becomes knot bulk morphologies to be advisable to make final homogeneous mixture;
(2) by methods such as mechanical presses gained homogeneous mixture is pressed into there is the solid-state of certain pattern or semisolid electrode;
(3) be connected with the negative pole of dc source with this electrode, the electrode made by the material such as graphite, metal is connected with the positive pole of dc source;
(4) electrode being connected with dc source positive and negative electrode described in step (3) is maintained a certain distance;
(5) switch on power, make the electroluminescent thermal source such as electric arc, plasma, electric spark producing some strength between circuit two electrode, the high temperature utilizing this thermal source to produce puts on carbon nanotube mixture electrode surface, under high temperature action, the adhesive that CNT absorbs undergoes phase transition, and volume expands rapidly makes CNT effectively be disperseed;
(6) the described electroluminescent near heating sources of step (5) by airflow apparatus produce air-flow the CNT of be dispersed in gas-phase space be transported to knot screen to slough the residual adhesive accompanying by CNT;
(7) by being drawn disperseed CNT by air-flow to collecting or the region of processing further.
The invention has the beneficial effects as follows, provide a kind of dispersion effect obviously and carbon nano tube dispersion method prepared by scale can be realized.
Accompanying drawing illustrates:
Accompanying drawing 1 is production technological process of the present invention.
Detailed description of the invention:
Below in conjunction with accompanying drawing 1, the present invention will be further described, concrete implementation method:
The invention provides a kind of dispersion effect obviously and carbon nano tube dispersion method prepared by scale can be realized.First be configured for the CNT of dispersion and the mixture of adhesive, its formula is a certain proportion of CNT and adhesive.Nano material is mixed with certain proportion with adhesive, then with mechanical pressurization, mixture is pressed into solid-state, the semisolid electrode of definite shape, with obtained carbon nanotube mixture electrode be extremely connected with one of dc source (with power cathode be connected to should), the electrode that another pole of power supply of making by the material such as graphite, metal afterwards and carbon nanotube mixture form keeps certain slight distance.Switch on power, connect circuit and make the electroluminescent thermal source such as electric arc, plasma, electric spark producing some strength between two electrodes, the high temperature utilizing above-mentioned thermal source to produce puts on carbon nanotube mixture electrode surface, under high temperature action, the adhesive that CNT absorbs undergoes phase transition, by the rapid expansion of volume with dispersing Nano carbon tubes aggregate.Above-mentioned near heating sources by airflow apparatus produce air-flow the CNT of be dispersed in gas-phase space be transported to knot screen to slough the residual adhesive accompanying by CNT, then to be drawn to collecting or the region of processing further by air-flow.Its preparation technology comprises the following steps:
(1) by one or more Homogeneous phase mixing in the CNT of preparation dispersion and a certain proportion of adhesive, mixed proportion becomes knot bulk morphologies to be advisable to make final homogeneous mixture;
(2) by methods such as mechanical presses gained homogeneous mixture is pressed into there is the solid-state of certain pattern or semisolid electrode;
(3) be connected with the negative pole of dc source with this electrode, the electrode made by the material such as graphite, metal is connected with the positive pole of dc source;
(4) electrode being connected with dc source positive and negative electrode described in step (3) is maintained a certain distance;
(5) switch on power, make the electroluminescent thermal source such as electric arc, plasma, electric spark producing some strength between circuit two electrode, the high temperature utilizing this thermal source to produce puts on carbon nanotube mixture electrode surface, under high temperature action, the adhesive that CNT absorbs undergoes phase transition, and volume expands rapidly makes CNT effectively be disperseed;
(6) the described electroluminescent near heating sources of step (5) by airflow apparatus produce air-flow the CNT of be dispersed in gas-phase space be transported to knot screen to slough the residual adhesive accompanying by CNT;
(7) by being drawn disperseed CNT by air-flow to collecting or the region of processing further.
Claims (9)
1. a carbon nano tube dispersion method, is characterized in that comprising following processing step:
(1) one or more Homogeneous phase mixing of CNT and the adhesive disperseed will be prepared;
(2) by methods such as mechanical pressurization gained homogeneous mixture is pressed into there is the solid-state of certain pattern or semisolid electrode;
(3) step (2) the electrode obtained is connected with the negative pole of dc source, and the electrode made by the material such as graphite, metal is connected with the positive pole of dc source;
(4) electrode being connected with dc source positive and negative electrode described in step (3) is kept certain distance;
(5) switch on power, make the electroluminescent thermal source such as electric arc, plasma, electric spark producing some strength between circuit two electrode, the high temperature utilizing this thermal source to produce puts on carbon nanotube mixture electrode surface, under high temperature action, the adhesive that CNT absorbs undergoes phase transition, and volume expands rapidly makes CNT effectively be disperseed;
(6) the described electroluminescent near heating sources of step (5) by airflow apparatus produce air-flow the CNT of be dispersed in gas-phase space be transported to knot screen to slough the residual adhesive accompanying by CNT;
(7) by being drawn disperseed CNT by air-flow to collecting or the region of processing further.
2. by a kind of carbon nano tube dispersion method according to claim 1, it is characterized in that: fill a prescription as CNT and one or more adhesives.
3. be as the criterion to make final homogeneous mixture become to lump the solid-state of shape or semisolid pattern by CNT in homogeneous mixture according to claim 1 and adhesive mixed proportion.
4. by claim 1, claim 2, adhesive according to claim 3, it is characterized in that: the material of certain immersional wetting mutually can be had by phase belonging to temperature change with CNT.
5. by a kind of carbon nano tube dispersion method according to claim 1, it is characterized in that: the energy input form that adhesive is undergone phase transition has the plasma arc of certain energy density or electric arc or electric spark.
6., by a kind of carbon nano tube dispersion method according to claim 1, it is characterized in that: described in step (2), electrode also can be connected with DC power anode in step (3).
7., by a kind of carbon nano tube dispersion method according to claim 1, it is characterized in that: described in step (3), dc source also can be AC power, if AC power does not then distinguish the positive and negative of electrode described in claim 1.
8. by a kind of carbon nano tube dispersion method according to claim 1, it is characterized in that: step (1), (3), (4), (5) are essential features, step (2), (6), (7) are inessential technical characteristic.
9. by a kind of carbon nano tube dispersion method according to claim 1, it is characterized in that: this technical method not only can dispersing Nano carbon tubes, can also be applied in the dispersion of other micro-nano material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510963821.XA CN105536585B (en) | 2015-12-20 | 2015-12-20 | A kind of carbon nano tube dispersion method |
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|---|---|---|---|
| CN201510963821.XA CN105536585B (en) | 2015-12-20 | 2015-12-20 | A kind of carbon nano tube dispersion method |
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| Publication Number | Publication Date |
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| CN105536585A true CN105536585A (en) | 2016-05-04 |
| CN105536585B CN105536585B (en) | 2018-07-06 |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106006607A (en) * | 2016-06-20 | 2016-10-12 | 青岛科技大学 | Gas-phase dispersed carbon nanotube capturing and collecting device |
| CN106082174A (en) * | 2016-06-20 | 2016-11-09 | 青岛科技大学 | A kind of CNT dispersal device |
| CN106082173A (en) * | 2016-06-20 | 2016-11-09 | 青岛科技大学 | A kind of carbon nano tube dispersion method |
| CN106188682A (en) * | 2016-06-20 | 2016-12-07 | 青岛科技大学 | The nanotube dispersion of a kind of gas phase dispersion prepares the method for Carbon Nanotubes/natural Rubber Composites |
| CN106219509A (en) * | 2016-06-20 | 2016-12-14 | 青岛科技大学 | A kind of carbon nano tube dispersion method |
| CN106906642A (en) * | 2017-03-28 | 2017-06-30 | 青岛科技大学 | A kind of device that carbon fiber surface modification is carried out by rapid attachment two-phase layer CNT |
| CN106955629A (en) * | 2017-03-28 | 2017-07-18 | 青岛科技大学 | A kind of nano material dispersal device |
| CN106978718A (en) * | 2017-03-28 | 2017-07-25 | 青岛科技大学 | A kind of surface modifying method of carbon fiber rapid attachment two-phase layer CNT |
| CN107604675A (en) * | 2017-09-14 | 2018-01-19 | 青岛科技大学 | A kind of contact jaw processing method on the aligned carbon nanotube modified carbon fiber surface for disperseing mist based on gas phase CNT |
| CN112176718A (en) * | 2019-07-01 | 2021-01-05 | 青岛科技大学 | Preparation process of carbon fiber with carbon nano tube embedded on surface |
| CN113088086A (en) * | 2021-04-07 | 2021-07-09 | 青岛科技大学 | Filling method of directionally reinforced organic silicone grease based on carbon nano tube/nano silicon carbide gas-phase dispersed mist |
| CN113083121A (en) * | 2021-04-07 | 2021-07-09 | 青岛科技大学 | Filling device for directionally enhancing organic silicone grease based on carbon nano tube/nano silicon carbide gas-phase dispersed mist |
| CN113809305A (en) * | 2021-09-17 | 2021-12-17 | 青岛科技大学 | Preparation method and device of tin/carbon nanotube composite material |
| CN115448296A (en) * | 2022-09-05 | 2022-12-09 | 烟台大学 | Large-scale rapid gas-phase dispersion method for carbon nanotubes |
| CN115536008A (en) * | 2022-09-05 | 2022-12-30 | 烟台大学 | Miniature serialization carbon nanotube gaseous phase dispersion equipment |
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| CN1910771A (en) * | 2004-01-14 | 2007-02-07 | Kh化学有限公司 | Carbon nanotube or carbon nanofiber electrode comprising sulfur or metal nanoparticles as a binder and process for preparing the same |
| CN1712350A (en) * | 2004-06-15 | 2005-12-28 | 南开大学 | Arc synthesizer of sing-wall carbon nanometer tubes |
| CN104725655A (en) * | 2014-05-27 | 2015-06-24 | 昆明纳太能源科技有限公司 | Surface composite carbon nano material as well as preparation method and application thereof |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106006607A (en) * | 2016-06-20 | 2016-10-12 | 青岛科技大学 | Gas-phase dispersed carbon nanotube capturing and collecting device |
| CN106082174A (en) * | 2016-06-20 | 2016-11-09 | 青岛科技大学 | A kind of CNT dispersal device |
| CN106082173A (en) * | 2016-06-20 | 2016-11-09 | 青岛科技大学 | A kind of carbon nano tube dispersion method |
| CN106188682A (en) * | 2016-06-20 | 2016-12-07 | 青岛科技大学 | The nanotube dispersion of a kind of gas phase dispersion prepares the method for Carbon Nanotubes/natural Rubber Composites |
| CN106219509A (en) * | 2016-06-20 | 2016-12-14 | 青岛科技大学 | A kind of carbon nano tube dispersion method |
| CN106082173B (en) * | 2016-06-20 | 2019-06-28 | 青岛科技大学 | A kind of carbon nano tube dispersion method |
| CN106188682B (en) * | 2016-06-20 | 2019-08-23 | 青岛科技大学 | A kind of method that the nanotube dispersion of gas phase dispersion prepares Carbon Nanotubes/natural Rubber Composites |
| CN106906642A (en) * | 2017-03-28 | 2017-06-30 | 青岛科技大学 | A kind of device that carbon fiber surface modification is carried out by rapid attachment two-phase layer CNT |
| CN106955629A (en) * | 2017-03-28 | 2017-07-18 | 青岛科技大学 | A kind of nano material dispersal device |
| CN106978718A (en) * | 2017-03-28 | 2017-07-25 | 青岛科技大学 | A kind of surface modifying method of carbon fiber rapid attachment two-phase layer CNT |
| CN106955629B (en) * | 2017-03-28 | 2022-07-15 | 青岛科技大学 | Nano material dispersion devices |
| CN106978718B (en) * | 2017-03-28 | 2019-08-27 | 青岛科技大学 | A kind of surface modifying method of carbon fiber rapid attachment two-phase layer carbon nanotube |
| CN107604675B (en) * | 2017-09-14 | 2020-02-07 | 青岛科技大学 | Contact end treatment method for oriented carbon nanotube modified carbon fiber surface based on gas-phase carbon nanotube dispersed mist |
| CN107604675A (en) * | 2017-09-14 | 2018-01-19 | 青岛科技大学 | A kind of contact jaw processing method on the aligned carbon nanotube modified carbon fiber surface for disperseing mist based on gas phase CNT |
| CN112176718A (en) * | 2019-07-01 | 2021-01-05 | 青岛科技大学 | Preparation process of carbon fiber with carbon nano tube embedded on surface |
| CN113088086A (en) * | 2021-04-07 | 2021-07-09 | 青岛科技大学 | Filling method of directionally reinforced organic silicone grease based on carbon nano tube/nano silicon carbide gas-phase dispersed mist |
| CN113083121A (en) * | 2021-04-07 | 2021-07-09 | 青岛科技大学 | Filling device for directionally enhancing organic silicone grease based on carbon nano tube/nano silicon carbide gas-phase dispersed mist |
| CN113083121B (en) * | 2021-04-07 | 2022-11-22 | 青岛科技大学 | Filling device for directionally enhancing organic silicone grease based on carbon nano tube/nano silicon carbide gas-phase dispersed mist |
| CN113809305A (en) * | 2021-09-17 | 2021-12-17 | 青岛科技大学 | Preparation method and device of tin/carbon nanotube composite material |
| CN113809305B (en) * | 2021-09-17 | 2022-12-27 | 青岛科技大学 | Preparation method and device of tin/carbon nanotube composite material |
| CN115448296A (en) * | 2022-09-05 | 2022-12-09 | 烟台大学 | Large-scale rapid gas-phase dispersion method for carbon nanotubes |
| CN115536008A (en) * | 2022-09-05 | 2022-12-30 | 烟台大学 | Miniature serialization carbon nanotube gaseous phase dispersion equipment |
| CN115536008B (en) * | 2022-09-05 | 2024-03-01 | 烟台大学 | Miniature continuous carbon nanotube gas-phase dispersing equipment |
| CN115448296B (en) * | 2022-09-05 | 2024-04-12 | 烟台大学 | Large-scale rapid gas-phase dispersion method for carbon nanotubes |
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