CN206082694U - Sand mill is used in carbon nanotube electrocondution slurry dispersion - Google Patents
Sand mill is used in carbon nanotube electrocondution slurry dispersion Download PDFInfo
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- CN206082694U CN206082694U CN201621009194.2U CN201621009194U CN206082694U CN 206082694 U CN206082694 U CN 206082694U CN 201621009194 U CN201621009194 U CN 201621009194U CN 206082694 U CN206082694 U CN 206082694U
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- carbon nanotube
- ceramic grinding
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- nanotube conducting
- grinding bucket
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Abstract
The utility model discloses a sand mill is used in carbon nanotube electrocondution slurry dispersion is including ceramic grinding bucket, carbon nanotube electrocondution slurry, defoaming agent holding vessel, dispersion effect tester and online viscosity measurement appearance, the even winding of ceramic grinding bucket lateral wall periphery has snakelike circulating pipe, built -in carbon nanotube electrocondution slurry, level sensor and the temperature sensor of being filled with of ceramic grinding bucket, the defoaming agent holding vessel sets up in the top of ceramic grinding bucket, and the dispersion effect tester includes electrode a, electrode b and resistance instrument, online viscosity measurement appearance sets up in the top of ceramic grinding bucket, the rotor of online viscosity measurement appearance in stretching into carbon nanotube electrocondution slurry. This application enables automatic interpolation of defoaming agent among the dispersion process, and can be according to carbon nanotube electrocondution slurry's liquid level volume and temperature, automatic definite defoaming agent addition. In addition, carbon nanotube paste's the dispersion effect and the time node of stirring can be accurately effectual judged, excessive stirring is avoided.
Description
Technical field
The application is related to a kind of assistance test instrument in carbon nano tube paste production process, particularly a kind of CNT
Electrocondution slurry dispersion sand mill.
Background technology
CNT is lightweight as monodimension nanometer material, and hexagonal structure connection is perfect, with many abnormal power
, electricity and chemical property.
CNT has good mechanical property, and CNTs tensile strength reaches 50～200GPa, is 100 times of steel, close
Degree but only has the 1/6 of steel, an order of magnitude at least high than ordinary graphite fiber；Its elastic modelling quantity up to 1TPa, with diamond
Elastic modelling quantity quite, about the 5 of steel times.For the CNT of the solid wall with ideal structure, its tensile strength is about
800GPa.Although the structure of CNT is similar to the structure of macromolecular material, its structure is stablized than macromolecular material
It is many.CNT is the material with highest specific strength that can be prepared at present.If will based on Other Engineering material with carbon
Nanotube makes composite, and composite material exhibits can be made to go out good intensity, elasticity, fatigue resistance and isotropism, to multiple
The performance of condensation material brings greatly improvement.
The hardness of CNT is suitable with diamond, but possesses good pliability, can stretch.It is in October, 2000, beautiful
The researcher of Pennsylvania State University of state claims, and the intensity of the strength ratio same volume steel of CNT is high 100 times, after weight but only has
1/6 to the 1/7 of person.CNT thus claimed " super fiber ".The researcher of Moscow State University is once placed in CNT
Under the hydraulic pressure of 1011 MPa（The pressure deep equivalent to ten thousand metres under water）, due to huge pressure, CNT is crushed.Remove
After removing pressure, CNT has recovered immediately shape as spring, shows good toughness.This enlightenment people can utilize
CNT manufactures frivolous spring, as damping device on automobile, train, can significantly mitigate weight.
CNT has good electric conductivity, due to the structure of CNT and the lamellar structure of graphite it is identical, institute
So that with good electric property, electrical conductivity is generally up to 10,000 times of copper.
CNT has good heat transfer property, and CNT can synthesize the heat conducting material of high anisotropy.Separately
Outward, CNT has higher thermal conductivity, as long as adulterating micro CNT in the composite, the heat of the composite
Conductance will be likely to be obtained very big improvement.
Because CNT has above-mentioned many excellent specific properties, therefore the research of CNT and nano material in recent years
More and more deep, the wide application prospect of CNT also constantly shows.
The Chinese invention patent application of Application No. 201510950204.6 disclosed in 4 days Mays in 2016, its innovation and creation
Entitled " a kind of lithium battery carbon nano tube paste and preparation method thereof ", the composition in carbon nano tube paste be carbon nanometer
Pipe, carbon black, surfactant, thickener, solvent.Its proportioning is, CNT：Carbon black：Surfactant：Thickener：Solvent=
（3~10wt%）:（0~8wt%）:（0.1~1.3wt%）:（0~1wt%）:（80~96wt%）, using the proportioning according to mixing work
Skill prepares dispersed uniform carbon nano tube paste.In the presence of surface-active, thickener, using high speed machine stirring and
The mode that ultrasonic agitation combines, greatly improves conductive agent degree of scatter.Carry out to being difficult to scattered carbon nanotube conducting agent
Slurry it is pre-prepared so as to reach preferable dispersion effect, reduce stirring requirement of the next step in the cell size, it is reachable
To preferable mixed effect.
The Chinese invention patent application of Application No. 201410114650.9 disclosed in 25 days June in 2014, its invention wound
Entitled " the carbon nanotube conducting slurry and its production and use " made, carbon nanotube conducting slurry by conductive functional filler,
Dispersant, solvent press conductive functional filler：Dispersant：Solvent=2～10：0.2～5：85～97.8 mass ratio is formulated.Lead
Electricity Functional body is spherical CNT group, spherical CNT aggregate or itself and carbon black, acetylene black, carbon fiber, conductive stone
The combination of one or more in ink, Graphene.Preparation method is to add the conductive functional filler and dispersant in the ratio
Enter in solvent and stir, obtain premix, premix is ground in grinder, formation includes multiple particle diameters for 0.1～3 micron
Spherical CNT group electrocondution slurry.The carbon nanotube conducting slurry can be used as the conduction of lithium battery positive and negative pole material
Agent.
Above-mentioned patent application, the mode that the first high speed machine stirring and ultrasonic agitation combine, is mainly suitable for small lot
The low aqueous dispersion of production or viscosity is used, and production in enormous quantities is disperseed using second sand mill substantially.
When being ground with sand mill, at present, also without effective method, can accurately and effectively judge that CNT is starched
The dispersion effect of material, more cannot accurately provide time node of carbon nano tube paste dispersion stirring etc..Therefore in CNT slurry
In material pulping process, it is badly in need of a kind of detection method to carbon nano tube paste dispersion effect, can the scattered effect of real-time detection slurry
Really, and the node time of slurry dispersion can be accurately given.
In addition, either in dispersion process, can produce heat gentle using ultrasonic disperse or sand mill grinding distribution
Bubble, so as to affect dispersion effect.Therefore, in dispersion process, addition defoamer is needed to carry out froth breaking, current defoamer is substantially equal
For artificial addition, major part is once to add before dispersion.Defoamer addition is uncontrollable, and in dispersion process, with
Jitter time prolongation, defoamer is readily volatilized, and defoaming effect is poor, while amount of heat can be produced in dispersion process, thus meeting
Accelerate defoamer volatilization, and then make defoaming effect have a greatly reduced quality.
The content of the invention
The application technical problem to be solved is to be directed to above-mentioned the deficiencies in the prior art, and provides a kind of carbon nanotube conducting
Slurry dispersion sand mill, the carbon nanotube conducting slurry dispersion sand milling function makes the defoamer in dispersion process add automatically
Plus, and defoamer addition can be automatically determined according to the liquid level amount of carbon nanotube conducting slurry and temperature, and can automatically control point
The heat that scattered process is produced.In addition, the dispersion effect of carbon nano tube paste can accurately and effectively be judged, carbon can be given and received
The time node of mitron slurry dispersion stirring, it is to avoid excessive agitation.
To solve above-mentioned technical problem, the technical scheme that the application is adopted is：
A kind of carbon nanotube conducting slurry dispersion sand mill, including ceramic grinding bucket, carbon nanotube conducting slurry, froth breaking
Agent holding vessel, dispersion effect tester and online viscosity tester.
Ceramic grinding bottom of the barrel is provided with controller, and timer is built-in with controller；Ceramic grinding bucket sidewall periphery is equal
It is even to be wound with snakelike circulating water pipe；Carbon nanotube conducting slurry is filled with ceramic grinding bucket, for detecting that CNT is led
The liquid level sensor of plasma-based feed liquid position and the temperature sensor for detecting carbon nanotube conducting slurry temperature.
Defoamer holding vessel is arranged on the top of ceramic grinding bucket, and the bottom of defoamer holding vessel is provided with sensing ceramics and grinds
Liquid outlet in grinding barrel, is provided with magnetic valve and flow sensor on liquid outlet；Wherein, the valve opening degree of magnetic valve can be adjusted
Section, flow sensor is used for the froth breaking agent flux that detection is flowed in ceramic grinding bucket.
Dispersion effect tester includes electrode a, electrode b and resistance instrument；Electrode a is fixedly installed on the inwall of ceramic grinding bucket
Middle face；Electrode b is located in carbon nanotube conducting slurry, and electrode b height can be lifted；Being provided with electrode b can detect that carbon is received
Second liquid level sensor of mitron electrocondution slurry liquid level, electrode a and electrode b respectively by wire extraction after, with resistance instrument
It is connected.
Online viscosity tester is arranged on the top of ceramic grinding bucket, and online viscosity tester includes that stretching into CNT leads
Rotor in plasma-based material.
Circulating water pipe, liquid level sensor, temperature sensor, magnetic valve, flow sensor, the second liquid level sensor, resistance
Instrument and online viscosity tester are connected with controller.
The electrode b is connected by expansion link with online viscosity apparatus.
The water yield in the circulating water pipe can be adjusted.
The circulating water pipe is made up of side by side biexhaust pipe.
Can automatically turn on and closing per root pipe in biexhaust pipe, and can adjust per the discharge in root pipe.
The application has the advantages that using after said structure：
1. above-mentioned liquid level sensor can be used to detect carbon nanotube conducting slurry liquid level, and the liquid level data of detection is transmitted
Individual controller, controller will can determine defoamer in process of lapping according to the liquid level data of detection and the milling time of setting
Addition and the data such as adding speed.
2. the setting of said temperature sensor, can be used to detect the temperature of carbon nanotube conducting slurry, and the temperature that will be detected
Degrees of data transmission controller, the increase of controller one side instruction cycles water pipe or reduction discharge or control Double water drainage tube are simultaneously
Open etc., automatically control the heat of dispersion process generation.On the other hand, by can be according to the temperature data of detection, such as temperature drift
Deng addition and adding speed etc. of defoamer will be increased.
3. the setting of above-mentioned circulating water pipe, can automatically adjust circulating water flow according to carbon nanotube conducting slurry temperature, enter
And control cooling-down effect.
4. the setting of above-mentioned defoamer holding vessel, magnetic valve and flow sensor, then can automatically control the drop of defoamer
Beam amount and drip velocity etc..
5. above-mentioned dispersion effect tester, non-conductive using ceramic grinding bucket, and the conductive characteristic of carbon nanotube powder
Under the premise of, make full use of the nonconducting characteristic of organic dispersion solvent in carbon nanotube conducting slurry, when carbon nanotube powder not
It is well mixed with nonconducting organic dispersion solvent, with the time passage of grinding, the resistance value measured by resistance instrument will be by big
Diminish, when resistance value is held essentially constant in one section of setting time, even if electrode b is upper and lower in carbon nanotube conducting slurry
Lifting, resistance value remain on holding it is constant when, the dispersion effect of slurry is optimal, also the as scattered final node of slurry.It is above-mentioned
The oscilaltion of electrode b, therefore slurry that can be to ceramic grinding bucket from top to bottom tests, test reliability is high.In addition, on
The setting of the second liquid level sensor on electrode b is stated, automatic detection can be carried out to the liquid level of carbon nanotube conducting slurry, on the one hand
Can be according to setting liquid level, the adjustable height of adjust automatically shaft.On the other hand, can judge to stir according to resistance value test result
Mix or sand milling efficiency, find out stirring or sand milling weak spot.
6. the setting of above-mentioned online viscosity apparatus, energy aid dispersion measure of merit instrument carries out dispersion effect test, i.e., when online
When viscosity apparatus measures viscosity in setting range, restart dispersion effect tester, carry out the evaluation of dispersion effect, also can both
Use simultaneously.Controller noted above is by the control to electrocondution slurry temperature so that viscosity test the data precision is higher.
Description of the drawings
Fig. 1 is a kind of structural representation of carbon nanotube conducting slurry dispersion sand mill of the application.
Specific embodiment
Below in conjunction with the accompanying drawings the application is described in further detail with concrete better embodiment.
As shown in figure 1, a kind of carbon nanotube conducting slurry dispersion sand mill, wherein there is ceramic grinding bucket 1, circulating water pipe
11st, liquid level sensor 12, controller 13, temperature sensor 14, carbon nanotube conducting slurry 2, defoamer holding vessel 3, liquid outlet
31st, magnetic valve 32, flow sensor 33, electrode a 41, electrode b 42, resistance instrument 43, wire 44, expansion link 45, online viscosity
The technical characteristics such as instrument 5 and rotor 51.
A kind of carbon nanotube conducting slurry dispersion sand mill, including ceramic grinding bucket, carbon nanotube conducting slurry, froth breaking
Agent holding vessel, dispersion effect tester and online viscosity tester.
Ceramic grinding bottom of the barrel is provided with controller, and timer is built-in with controller；Ceramic grinding bucket sidewall periphery is equal
It is even to be wound with snakelike circulating water pipe；Carbon nanotube conducting slurry is filled with ceramic grinding bucket, for detecting that CNT is led
The liquid level sensor of plasma-based feed liquid position and the temperature sensor for detecting carbon nanotube conducting slurry temperature.
Defoamer holding vessel is arranged on the top of ceramic grinding bucket, and the bottom of defoamer holding vessel is provided with sensing ceramics and grinds
Liquid outlet in grinding barrel, is provided with magnetic valve and flow sensor on liquid outlet；Wherein, the valve opening degree of magnetic valve can be adjusted
Section, flow sensor is used for the froth breaking agent flux that detection is flowed in ceramic grinding bucket.
Dispersion effect tester includes electrode a, electrode b and resistance instrument；Electrode a is fixedly installed on the inwall of ceramic grinding bucket
Middle face；Electrode b is located in carbon nanotube conducting slurry, and electrode b height can be lifted；Being provided with electrode b can detect that carbon is received
Second liquid level sensor of mitron electrocondution slurry liquid level, electrode a and electrode b respectively by wire extraction after, with resistance instrument
It is connected.
Online viscosity tester is arranged on the top of ceramic grinding bucket, and online viscosity tester includes that stretching into CNT leads
Rotor in plasma-based material.
Circulating water pipe, liquid level sensor, temperature sensor, magnetic valve, flow sensor, the second liquid level sensor, resistance
Instrument and online viscosity tester are connected with controller.
The electrode b is connected by expansion link with online viscosity apparatus.
The water yield in the circulating water pipe can be adjusted.
The circulating water pipe is made up of side by side biexhaust pipe.
Can automatically turn on and closing per root pipe in biexhaust pipe, and can adjust per the discharge in root pipe.
The application has the advantages that using after said structure：
1. above-mentioned liquid level sensor can be used to detect carbon nanotube conducting slurry liquid level, and the liquid level data of detection is transmitted
Individual controller, controller will can determine defoamer in process of lapping according to the liquid level data of detection and the milling time of setting
Addition and the data such as adding speed.
2. the setting of said temperature sensor, can be used to detect the temperature of carbon nanotube conducting slurry, and the temperature that will be detected
Degrees of data transmission controller, the increase of controller one side instruction cycles water pipe or reduction discharge or control Double water drainage tube are simultaneously
Open etc., automatically control the heat of dispersion process generation.On the other hand, by can be according to the temperature data of detection, such as temperature drift
Deng addition and adding speed etc. of defoamer will be increased.
3. the setting of above-mentioned circulating water pipe, can automatically adjust circulating water flow according to carbon nanotube conducting slurry temperature, enter
And control cooling-down effect.
4. the setting of above-mentioned defoamer holding vessel, magnetic valve and flow sensor, then can automatically control the drop of defoamer
Beam amount and drip velocity etc..
5. above-mentioned dispersion effect tester, non-conductive using ceramic grinding bucket, and the conductive characteristic of carbon nanotube powder
Under the premise of, make full use of the nonconducting characteristic of organic dispersion solvent in carbon nanotube conducting slurry, when carbon nanotube powder not
It is well mixed with nonconducting organic dispersion solvent, with the time passage of grinding, the resistance value measured by resistance instrument will be by big
Diminish, when resistance value is held essentially constant in one section of setting time, even if electrode b is upper and lower in carbon nanotube conducting slurry
Lifting, resistance value remain on holding it is constant when, the dispersion effect of slurry is optimal, also the as scattered final node of slurry.It is above-mentioned
The oscilaltion of electrode b, therefore slurry that can be to ceramic grinding bucket from top to bottom tests, test reliability is high.In addition, on
The setting of the second liquid level sensor on electrode b is stated, automatic detection can be carried out to the liquid level of carbon nanotube conducting slurry, on the one hand
Can be according to setting liquid level, the adjustable height of adjust automatically shaft.On the other hand, can judge to stir according to resistance value test result
Mix or sand milling efficiency, find out stirring or sand milling weak spot.
6. the setting of above-mentioned online viscosity apparatus, energy aid dispersion measure of merit instrument carries out dispersion effect test, i.e., when online
When viscosity apparatus measures viscosity in setting range, restart dispersion effect tester, carry out the evaluation of dispersion effect, also can both
Use simultaneously.Controller noted above is by the control to electrocondution slurry temperature so that viscosity test the data precision is higher.
The preferred embodiment of the application described in detail above, but, the application is not limited in above-mentioned embodiment
Detail, in the range of the technology design of the application, various equivalents can be carried out to the technical scheme of the application, this
A little equivalents belong to the protection domain of the application.
Claims (5)
1. a kind of carbon nanotube conducting slurry dispersion sand mill, it is characterised in that：Including ceramic grinding bucket, carbon nanotube conducting
Slurry, defoamer holding vessel, dispersion effect tester and online viscosity tester；
Ceramic grinding bottom of the barrel is provided with controller, and timer is built-in with controller；Ceramic grinding bucket sidewall periphery is uniformly twined
It is wound with snakelike circulating water pipe；Be filled with ceramic grinding bucket carbon nanotube conducting slurry, for detect carbon nanotube conducting starch
The liquid level sensor of feed liquid position and the temperature sensor for detecting carbon nanotube conducting slurry temperature；
Defoamer holding vessel is arranged on the top of ceramic grinding bucket, and the bottom of defoamer holding vessel is provided with sensing ceramic grinding bucket
Interior liquid outlet, is provided with magnetic valve and flow sensor on liquid outlet；Wherein, the valve opening degree of magnetic valve can be adjusted,
Flow sensor is used for the froth breaking agent flux that detection is flowed in ceramic grinding bucket；
Dispersion effect tester includes electrode a, electrode b and resistance instrument；Electrode a is fixedly installed in the internal face of ceramic grinding bucket
Portion；Electrode b is located in carbon nanotube conducting slurry, and electrode b height can be lifted；Being provided with electrode b can detect CNT
Second liquid level sensor of electrocondution slurry liquid level, electrode a and electrode b after wire extraction, are connected respectively with resistance instrument
Connect；
Online viscosity tester is arranged on the top of ceramic grinding bucket, and online viscosity tester includes stretching into carbon nanotube conducting slurry
Rotor in material；
Circulating water pipe, liquid level sensor, temperature sensor, magnetic valve, flow sensor, the second liquid level sensor, resistance instrument and
Online viscosity tester is connected with controller.
2. carbon nanotube conducting slurry dispersion sand mill according to claim 1, it is characterised in that：The electrode b leads to
Cross expansion link to be connected with online viscosity apparatus.
3. carbon nanotube conducting slurry dispersion sand mill according to claim 1, it is characterised in that：The circulating water pipe
The interior water yield can be adjusted.
4. carbon nanotube conducting slurry dispersion sand mill according to claim 1, it is characterised in that：The circulating water pipe
It is made up of side by side biexhaust pipe.
5. carbon nanotube conducting slurry dispersion sand mill according to claim 4, it is characterised in that：Per root in biexhaust pipe
Pipe can be automatically turned on and closing, and can be adjusted per the discharge in root pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621009194.2U CN206082694U (en) | 2016-08-30 | 2016-08-30 | Sand mill is used in carbon nanotube electrocondution slurry dispersion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621009194.2U CN206082694U (en) | 2016-08-30 | 2016-08-30 | Sand mill is used in carbon nanotube electrocondution slurry dispersion |
Publications (1)
| Publication Number | Publication Date |
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| CN206082694U true CN206082694U (en) | 2017-04-12 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621009194.2U Expired - Fee Related CN206082694U (en) | 2016-08-30 | 2016-08-30 | Sand mill is used in carbon nanotube electrocondution slurry dispersion |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352923A (en) * | 2016-08-30 | 2017-01-25 | 无锡东恒新能源科技有限公司 | Sand mill capable of automatically adding antifoaming agent and automatically testing dispersion effect |
| CN114937530A (en) * | 2022-06-21 | 2022-08-23 | 湖北冠毓新材料科技有限公司 | Method for reducing viscosity of carbon fiber conductive slurry |
-
2016
- 2016-08-30 CN CN201621009194.2U patent/CN206082694U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352923A (en) * | 2016-08-30 | 2017-01-25 | 无锡东恒新能源科技有限公司 | Sand mill capable of automatically adding antifoaming agent and automatically testing dispersion effect |
| CN106352923B (en) * | 2016-08-30 | 2019-02-12 | 无锡东恒新能源科技有限公司 | The sand mill of defoaming agent and automatic test dispersion effect can be added automatically |
| CN114937530A (en) * | 2022-06-21 | 2022-08-23 | 湖北冠毓新材料科技有限公司 | Method for reducing viscosity of carbon fiber conductive slurry |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170412 Termination date: 20180830 |
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| CF01 | Termination of patent right due to non-payment of annual fee |