CN104722219A - Carbon nano tube dispersion method - Google Patents
Carbon nano tube dispersion method Download PDFInfo
- Publication number
- CN104722219A CN104722219A CN201410446507.XA CN201410446507A CN104722219A CN 104722219 A CN104722219 A CN 104722219A CN 201410446507 A CN201410446507 A CN 201410446507A CN 104722219 A CN104722219 A CN 104722219A
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- CN
- China
- Prior art keywords
- carbon nano
- nano tube
- cnt
- phase change
- dispersion method
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- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 29
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 239000006185 dispersion Substances 0.000 title claims abstract description 22
- 239000002041 carbon nanotube Substances 0.000 title claims abstract description 20
- 229910021393 carbon nanotube Inorganic materials 0.000 title claims abstract description 20
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 239000012782 phase change material Substances 0.000 claims description 17
- 239000007789 gas Substances 0.000 claims description 11
- 239000001273 butane Substances 0.000 claims description 7
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 claims description 7
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 230000009466 transformation Effects 0.000 claims description 4
- 239000006096 absorbing agent Substances 0.000 claims description 3
- 238000000889 atomisation Methods 0.000 claims description 3
- 239000002270 dispersing agent Substances 0.000 claims description 3
- 229930195733 hydrocarbon Natural products 0.000 claims description 3
- 150000002430 hydrocarbons Chemical class 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000012071 phase Substances 0.000 claims 5
- 238000010521 absorption reaction Methods 0.000 claims 1
- 238000011049 filling Methods 0.000 claims 1
- 239000007791 liquid phase Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000007664 blowing Methods 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- KEQGZUUPPQEDPF-UHFFFAOYSA-N 1,3-dichloro-5,5-dimethylimidazolidine-2,4-dione Chemical compound CC1(C)N(Cl)C(=O)N(Cl)C1=O KEQGZUUPPQEDPF-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005411 Van der Waals force Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- XTHPWXDJESJLNJ-UHFFFAOYSA-N chlorosulfonic acid Substances OS(Cl)(=O)=O XTHPWXDJESJLNJ-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000003930 superacid Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
Abstract
The invention discloses a carbon nano tube dispersion method, and belongs to the field of novel materials. In the formula, a carbon nano tube and a phase change substance are contained. The carbon nano tube dispersion method comprises the technology steps: (1) firstly adding the carbon nano tube into a pressure container, and then adding the phase change substance; (2) spraying an atomized mixed component so as to achieve phase change of a dispersion agent, and meanwhile, blowing air streams in a container of a throttling sprayer so as to mix with a target solution; and (4) filtering the unabsorbed carbon nano tube after the air streams pass through a filter, enabling the unabsorbed carbon nano tube to enter a phase inverter, returning the phase change substance to the initial phase state, and backflowing into the pressure container to recycle. The carbon nano tube dispersion method has the beneficial effects that the carbon nano tube dispersion method which does not damage the carbon nano tube structure, is complete in dispersion effect and is suitable for mass production.
Description
Technical field
The present invention relates to field of new, particularly relate to a kind of carbon nano tube dispersion method.
Background technology
CNT, it adopts that graphite flake curlingly to form according to certain helical angle processing by the technology such as electric arc, laser, diameter is nano level tube-like materials.It has very large draw ratio, and excellent physical characteristic, its tensile strength is 100 times of steel.Heat exchange performance is alongst very high, and the heat exchange performance of its relative vertical direction is lower, and by suitable orientation, CNT can synthesize the heat conducting material of high anisotropy.By on a small quantity add be improve the desirable adding material of the physical properties such as rubber, plastics and chemical industry aspect, have boundless application prospect.
But, the Van der Waals force stronger due to CNT self and very large draw ratio, cause its in process of production CNT very easily reunite.And in the application, only have the excellent properties being disperseed fully to add in required material by CNT and just can better give play to it.So, the aggregate of CNT fully must be disperseed just can reach desirable result of use before use.Current many technical staff adopt multiple method to solve CNT agglomeration traits, mainly adopt ultrasonic oscillation method, comminuting method and chemical method etc.But these methods all have dispersion effect difference or destroy the defects such as CNT integrality, difficulty reaches needed for relevant industries production.
Chinese invention patent 201110180590 provides a kind of chemical method by CNT intercalation, swelling in the super acids being representative with oleum or chlorosulfonic acid, then carbonaceous accessory substance contained by the nitric acid selection function, can thermoplastic polymer in the conventional organic solvent such as ethanol, acetone.Although the CNT of reunion can be carried out certain dispersion by the method, the result of disperseing is difficult to the requirement reaching product.
Chinese invention patent 200910062844 provides a kind of physical method and CNT and ceramic powder is added in the organic binder bond being in molten condition and obtain feeding, feeding is sheared, after shearing, goes the organic binder bond in feeding to obtain homodisperse CNT.Although this technology disperses the CNT of reuniting, the integrality destroying CNT has certain deficiency on effect, also comparatively complicated in processing technology, is not suitable for the needs of large-scale production.
Summary of the invention
For the deficiencies in the prior art such as above-mentioned, the invention provides one not destroying carbon nanometer tube structure, dispersion effect thoroughly and be applicable to mass-produced carbon nano tube dispersion method.
To achieve these goals, the technical solution adopted for the present invention to solve the technical problems is:
A kind of carbon nano tube dispersion method, its formula is CNT and phase change material.Described phase change material is butane, also can adopt Small molecular hydro carbons phase change material.If using butane as phase change material, the concrete mass ratio of CNT and butane is advisable with 1:20.
Its preparation technology comprises the following steps:
(1) in pressure vessel, first add CNT add phase change material again and provide stirring fully to avoid component layering;
(2) open pressure vessel throttling shower nozzle place valve, the blending ingredients of ejection atomization, to realize the phase transformation of dispersant, in the container residing for throttling shower nozzle, blast the motion of air-flow traction CNT, this process completes in the gas compartment simultaneously;
(3) CNT enters absorber and realizes and the mixing of object solvent under air-flow traction, and the CNT in gas has been transferred in the middle of gas, liquid or solid solvent by this process;
(4) air-flow is by the unabsorbed CNT of filter filtering, enters phase inverter and makes phase change material get back to initial phase and be back to pressure vessel to realize recycling.
The invention has the beneficial effects as follows, provide one not destroying carbon nanometer tube structure, dispersion effect thoroughly and be applicable to mass-produced carbon nano tube dispersion method.
Accompanying drawing explanation
Accompanying drawing is dispersing technology flow chart of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing and example, the present invention is further described.
The invention provides a kind of carbon nano tube dispersion method, its formula is CNT and phase change material.Described phase change material is butane, also can adopt Small molecular hydro carbons phase change material.If using butane as phase change material, the concrete mass ratio of CNT and butane is advisable with 1:20.
Its preparation technology comprises the following steps:
(1) in pressure vessel, first add CNT add phase change material again and provide stirring fully to avoid component layering;
(2) open pressure vessel throttling shower nozzle place valve, the blending ingredients of ejection atomization, to realize the phase transformation of dispersant, in the container residing for throttling shower nozzle, blast the motion of air-flow traction CNT, this process completes in the gas compartment simultaneously;
(3) CNT enters absorber and realizes and the mixing of object solvent under air-flow traction, and the CNT in gas has been transferred in the middle of gas, liquid or solid solvent by this process;
(4) air-flow is by the unabsorbed CNT of filter filtering, enters phase inverter and makes phase change material get back to initial phase and be back to pressure vessel to realize recycling.
Claims (4)
1. a carbon nano tube dispersion method, is characterized in that: the mixture of filling a prescription as CNT and phase change material; Its preparation process comprises the following steps:
(1) in pressure vessel, first add CNT add phase change material again and provide stirring fully to avoid component layering;
(2) open pressure vessel throttling shower nozzle place valve, the blending ingredients of ejection atomization, to realize the phase transformation of dispersant, in the container residing for throttling shower nozzle, blast the motion of air-flow traction CNT, this process completes in the gas compartment simultaneously;
(3) CNT enters absorber and realizes and the mixing of object solvent under air-flow traction, and the CNT in gas has been transferred in the middle of gas, liquid or solid solvent by this process;
(4) air-flow is by the unabsorbed CNT of filter filtering, enters phase inverter and makes phase change material get back to initial phase and be back to pressure vessel to realize recycling.
2. by a kind of carbon nano tube dispersion method according to claim 1, it is characterized in that: first will to be used directly again after carbon nanotube dispersed is in gas or by liquid or solid solvent absorption.
3., by a kind of carbon nano tube dispersion method according to claim 1, it is characterized in that: the dispersion of CNT along with phase change material by the phase transformation of liquid phase to gas phase.
4., by a kind of carbon nano tube dispersion method according to claim 1, it is characterized in that: described phase change material is specially butane or Small molecular hydrocarbons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410446507.XA CN104722219B (en) | 2014-09-03 | 2014-09-03 | A kind of carbon nano tube dispersion method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410446507.XA CN104722219B (en) | 2014-09-03 | 2014-09-03 | A kind of carbon nano tube dispersion method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104722219A true CN104722219A (en) | 2015-06-24 |
| CN104722219B CN104722219B (en) | 2017-11-14 |
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|---|---|---|---|
| CN201410446507.XA Active CN104722219B (en) | 2014-09-03 | 2014-09-03 | A kind of carbon nano tube dispersion method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106955629A (en) * | 2017-03-28 | 2017-07-18 | 青岛科技大学 | A kind of nano material dispersal device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8324487B2 (en) * | 2010-06-02 | 2012-12-04 | Shen tongde | Dispersible carbon nanotubes and method for preparing same |
| CN103418159A (en) * | 2013-05-09 | 2013-12-04 | 青岛科技大学 | New method for preventing nano particles from re-agglomerating during rapid expansion of supercritical fluid |
| CN103418330A (en) * | 2013-05-09 | 2013-12-04 | 青岛科技大学 | Novel method for preventing reclustering of nano particles, and application of novel method in preparing nano particle/polymer-based composite material |
| CN103623719A (en) * | 2013-12-18 | 2014-03-12 | 江苏科技大学 | Method for dispersing carbon nanotubes in suspension |
-
2014
- 2014-09-03 CN CN201410446507.XA patent/CN104722219B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8324487B2 (en) * | 2010-06-02 | 2012-12-04 | Shen tongde | Dispersible carbon nanotubes and method for preparing same |
| CN103418159A (en) * | 2013-05-09 | 2013-12-04 | 青岛科技大学 | New method for preventing nano particles from re-agglomerating during rapid expansion of supercritical fluid |
| CN103418330A (en) * | 2013-05-09 | 2013-12-04 | 青岛科技大学 | Novel method for preventing reclustering of nano particles, and application of novel method in preparing nano particle/polymer-based composite material |
| CN103623719A (en) * | 2013-12-18 | 2014-03-12 | 江苏科技大学 | Method for dispersing carbon nanotubes in suspension |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106955629A (en) * | 2017-03-28 | 2017-07-18 | 青岛科技大学 | A kind of nano material dispersal device |
| CN106955629B (en) * | 2017-03-28 | 2022-07-15 | 青岛科技大学 | Nano material dispersion devices |
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| Publication number | Publication date |
|---|---|
| CN104722219B (en) | 2017-11-14 |
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