CN106198642A - Can prevent from testing the carbon nano tube paste dispersion effect tester of electrode damage - Google Patents
Can prevent from testing the carbon nano tube paste dispersion effect tester of electrode damage Download PDFInfo
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- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
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Abstract
This application discloses the carbon nano tube paste dispersion effect tester that can prevent testing electrode damage, including ceramic grinder, in ceramic grinder, be filled with carbon nanotube conducting slurry and the zirconium oxide bead of a diameter of 2 4mm；The internal face of ceramic grinder is provided with three pairs of electrode groups; every pair of electrode group all includes two test electrodes; the periphery of each test electrode is equipped with hemispherical plastic safety cover, and each plastic safety cover is provided with several material paths, and the aperture of each material path is 0.5 1.5mm；It is connected with resistance instrument after every pair of electrode group parallel connection.The application can judge the dispersion effect of carbon nano tube paste accurately and effectively, it is possible to provides the time node of carbon nano tube paste dispersion stirring, can automatically control the mixing time of shaft, it is to avoid excessive agitation.Meanwhile, it is capable to prevent the zirconium oxide bead damage to test electrode, test electrode life is long, and it is the most accurate to test.
Description
Technical field
The application relates to a kind of assistance test instrument in carbon nano tube paste production process, particularly one and can prevent from surveying
The carbon nano tube paste dispersion effect tester of examination electrode damage.
Background technology
CNT is as monodimension nanometer material, lightweight, and hexagonal structure connects perfection, has much 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, at least higher an order of magnitude than ordinary graphite fiber；Its elastic modelling quantity is up to 1TPa, with diamond
Elastic modelling quantity suitable, about 5 times of steel.For having the CNT of the solid wall of ideal structure, its tensile strength is about
800GPa.Although the structure of CNT is similar to the structure of macromolecular material, but its structure is stablized than macromolecular material
Many.CNT is the material with high specific strength can prepared at present.If will be with Other Engineering material as matrix and carbon
Nanotube makes composite, and composite material exhibits can be made to go out good intensity, elasticity, fatigue resistance and isotropism, gives multiple
The performance of condensation material brings improvement greatly.
The hardness of CNT is suitable with diamond, but has good pliability, can stretch.In October, 2000, beautiful
The research worker 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 ".CNT was once placed in by the research worker of Moscow State University
(being equivalent to the pressure that ten thousand metres under water are deep) under the hydraulic pressure of 1011 MPa, due to huge pressure, CNT is crushed.Remove
After removing pressure, CNT has recovered shape as spring immediately, shows good toughness.These enlightenment people can utilize
CNT manufactures frivolous spring, is used on automobile, train as damping device, it is possible to significantly alleviate weight.
CNT has good electric conductivity, owing to the structure of CNT and the lamellar structure of graphite are identical, and institute
To have 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, if the CNT of the trace that adulterates in the composite, the heat of this composite
Conductance will be likely to be obtained the biggest improvement.
Owing to CNT has above-mentioned many excellent specific properties, therefore the research of CNT and nano material in recent years is also
More and more deep, the application prospect that CNT is wide the most 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 is carbon nanometer
Pipe, carbon black, surfactant, thickening agent, solvent.Its proportioning is, CNT: carbon black: surfactant: thickening agent: solvent=
(3 ~ 10wt%): (0 ~ 8wt%): (0.1 ~ 1.3wt%): (0 ~ 1wt%): (80 ~ 96wt%), uses this proportioning according to mix and blend work
Skill prepares dispersed uniform carbon nano tube paste.Surface activity, thickening agent effect under, use high speed machine stirring and
The mode that ultrasonic agitation combines, makes conductive agent degree of scatter be greatly improved.Carry out being difficult to scattered carbon nanotube conducting agent
Slurry pre-prepared so that it is reach preferable dispersion effect, reduce next step stirring requirement being used in cell size, up to
To preferable mixed effect.
The Chinese invention patent application of Application No. 201410114650.9 disclosed in 25 days June in 2014, it invents wound
Entitled " the carbon nanotube conducting slurry and its production and use " made, carbon nanotube conducting slurry by conductive functional filler,
Conductive functional filler pressed by dispersant, solvent: dispersant: solvent=2～10:0.2～5:85～97.8 mass ratio formulated.Lead
Electricity Functional body is Spherical Carbon nanotube group, Spherical Carbon nanotube aggregate or it is with carbon black, acetylene black, carbon fiber, conduction stone
The combination of one or more in ink, Graphene.Preparation method is described conductive functional filler and dispersant to be added in described ratio
Entering in solvent and stir, obtain premix material, by premix material in grinding machine for grinding, it is 0.1～3 micron that formation includes multiple particle diameter
The electrocondution slurry of spherical CNT group.This carbon nanotube conducting slurry can be as the conduction of lithium battery positive and negative pole material
Agent.
Above-mentioned patent application, the mode that the stirring of the first high speed machine and ultrasonic agitation combine, it is mainly suitable for small lot
Produce or the low aqueous dispersion of viscosity uses, produce in enormous quantities and the most all use the second sand mill to disperse.
When grinding with sand mill, at present, also there is no effective method, it is possible to judge that CNT is starched accurately and effectively
The dispersion effect of material, more cannot accurately provide the time node etc. of carbon nano tube paste dispersion stirring.Therefore starch at CNT
In material pulping process, it is badly in need of a kind of detection method to carbon nano tube paste dispersion effect, the scattered effect of slurry can be detected in real time
Really, and can accurately provide the node time of slurry dispersion.
Summary of the invention
The application to solve the technical problem that being for above-mentioned the deficiencies in the prior art, and provides one can prevent test electricity
The carbon nano tube paste dispersion effect tester of pole damage, this carbon nano tube paste dispersion effect that can prevent from testing electrode damage
Tester can judge the dispersion effect of carbon nano tube paste accurately and effectively, it is possible to provides carbon nano tube paste dispersion stirring
Time node, the mixing time of shaft can be automatically controlled, it is to avoid excessive agitation.Meanwhile, it is capable to prevent zirconium oxide bead to survey
The damage of examination electrode, test electrode life is long, and it is the most accurate to test.
For solving above-mentioned technical problem, the application the technical scheme is that
A kind of carbon nano tube paste dispersion effect tester that can prevent from testing electrode damage, including ceramic grinder, carbon nanometer
Pipe electrocondution slurry, zirconium oxide bead, the three pairs of electrode groups, switching switch, timer, resistance instrument and protective cover.
Ceramic grinder be provided centrally with shaft, shaft top is connected with stirring motor, and shaft can stir
Mix and rotate under the drive of motor.
Carbon nanotube conducting slurry and zirconium oxide bead it is filled with, a diameter of 2-4mm of zirconium oxide bead in ceramic grinder.
Being provided with three pairs of electrode groups on the internal face of ceramic grinder, three pairs of electrode components Wei electrode group one, electrode
Group two and electrode group three.
Every pair of electrode group all includes that two test electrodes, two test electrodes are respectively electrode a and electrode b, electrode a and electricity
Constant distance between the b of pole, and electrode a and electrode b is in the same liquid level degree of depth of carbon nanotube conducting slurry.
The periphery of each test electrode is provided with plastic safety cover, the most hemispherical structure of each plastic safety cover, and
By including corresponding test electrode-clad；Several material paths, the hole of each material path it is provided with on each plastic safety cover
Footpath is 0.5-1.5mm.
Under electrode group one is arranged on the internal face top of ceramic grinder and is positioned at the liquid level face of carbon nanotube conducting slurry
Side；Electrode group two is arranged in the middle part of the internal face of ceramic grinder；Electrode group three is arranged on bottom the internal face of ceramic grinder.
Electrode a in every pair of electrode group and electrode b is connected with resistance instrument after all being drawn by wire and form parallel circuit
Connect；A switching switch it is provided with in every parallel circuit.
Being built-in with timer in resistance instrument, resistance instrument is connected with stirring motor.
The aperture of each material path is 1mm.
The height of shaft can lift.
Described ceramic grinder is provided with liquid level sensor.
Being provided with on described shaft can be by the propeller blade of ceramic grinding motor spindle pulp lifter.
After the application uses said structure, have the advantages that
The most above-mentioned ceramic sand grinding machine has the features such as hardness height, good, the life-span length of wearability, thus does not haves conduction, magnetic conduction, gold
Belong to ion and be mixed into the phenomenons such as slurry, it is adaptable to large batch of slurrying works, and improves production efficiency.
The setting of the most above-mentioned zirconium oxide bead, and diameter is at 2-4mm, can make slurry quickly, reliable separation.Sand mill starts
Time, zirconium oxide bead and slurry do high speed centrifugation motion, and slurry quickly divides under centrifugal force, shaft and zirconium oxide bead effect of impact
Dissipating, the shock of slurry can be made slurry quickly reach dispersion with the reunion composition of dispersed paste by simultaneous oxidation zirconium pearl.It addition,
The setting of above-mentioned propeller blade, can further speed up dispersion effect.
The most above-mentioned three pairs of electrode groups, switching switch and the setting of resistance instrument, utilizing, ceramic sand grinding machine is non-conductive, and carbon is received
Under the characteristic premise of mitron powdered conductive, make full use of the organic nonconducting spy of dispersion solvent in carbon nanotube conducting slurry
Property, when carbon nanotube powder is not mixed homogeneously with nonconducting organic dispersion solvent, along with the time passage ground, resistance instrument institute
Resistance value in the loop that the every pair of electrode group recorded is constituted is all by from large to small.By the control to switching switch, can distinguish
Resistance value in every pair of electrode group is monitored.Set in the time period at one, carry out resistance test at least one times, once survey
Examination needs to test the resistance value in three pairs of resistor group successively simultaneously, when continuous three times are tested, and the resistance in three pairs of electrode groups
When value is all held essentially constant, the dispersion effect of slurry is optimal, is also the scattered final node of slurry.Above-mentioned three pairs of electrode groups
Being arranged at different depth, therefore can test ceramic sand grinding machine slurry from top to bottom, test reliability is high.It addition,
The setting of above-mentioned timer, can go out scattered finish node by automatic decision, the setting time after detecting finish node
In, shaft can be automatically controlled and stop stirring.
The setting of the most above-mentioned plastic protection cover, can prevent the zirconium oxide bead damage to test electrode, test electrode from using the longevity
Life is long, and it is the most accurate to test.It addition, the setting of material path, do not affect carbon nanotube conducting slurry and pass from material path, and prevent
Zirconium oxide bead enters.
The setting of the most above-mentioned liquid level sensor, can detect the liquid level of carbon nanotube conducting slurry, automatically when exceeding
When setting liquid level, can automatic alarm.It addition, the adjustable height of shaft can also be adjusted automatically according to setting liquid level.
Accompanying drawing explanation
Fig. 1 is that a kind of structure that can prevent from testing the carbon nano tube paste dispersion effect tester of electrode damage of the application is shown
It is intended to.
Detailed description of the invention
With concrete better embodiment, the application is described in further detail below in conjunction with the accompanying drawings.
As it is shown in figure 1, a kind of carbon nano tube paste dispersion effect tester that can prevent from testing electrode damage, wherein there is pottery
Porcelain sand mill 1, shaft 11, stirring motor 12, carbon nanotube conducting slurry 2, zirconium oxide bead 3, electrode a 41, electrode b 42,
The technical characteristics such as switching switch 5, wire 6, timer 7, resistance instrument 8, plastic safety cover 9, material path 91.
A kind of carbon nano tube paste dispersion effect tester that can prevent from testing electrode damage, including ceramic grinder, carbon
Nanotube conductive slurry, zirconium oxide bead, the three pairs of electrode groups, switching switch, timer, resistance instrument and protective cover.
Ceramic grinder be provided centrally with shaft, shaft top is connected with stirring motor, and shaft can stir
Mix and rotate under the drive of motor.
Carbon nanotube conducting slurry and zirconium oxide bead it is filled with, a diameter of 2-4mm of zirconium oxide bead in ceramic grinder.
Being provided with three pairs of electrode groups on the internal face of ceramic grinder, three pairs of electrode components Wei electrode group one, electrode
Group two and electrode group three.
Every pair of electrode group all includes that two test electrodes, two test electrodes are respectively electrode a and electrode b, electrode a and electricity
Constant distance between the b of pole, and electrode a and electrode b is in the same liquid level degree of depth of carbon nanotube conducting slurry.
The periphery of each test electrode is provided with plastic safety cover, the most hemispherical structure of each plastic safety cover, and
By including corresponding test electrode-clad；Several material paths, the hole of each material path it is provided with on each plastic safety cover
Footpath is 0.5-1.5mm.
Under electrode group one is arranged on the internal face top of ceramic grinder and is positioned at the liquid level face of carbon nanotube conducting slurry
Side；Electrode group two is arranged in the middle part of the internal face of ceramic grinder；Electrode group three is arranged on bottom the internal face of ceramic grinder.
Electrode a in every pair of electrode group and electrode b is connected with resistance instrument after all being drawn by wire and form parallel circuit
Connect；A switching switch it is provided with in every parallel circuit.
Being built-in with timer in resistance instrument, resistance instrument is connected with stirring motor.
The aperture of each material path is 1mm.
The height of shaft can lift.
Described ceramic grinder is provided with liquid level sensor.
Being provided with on described shaft can be by the propeller blade of ceramic grinding motor spindle pulp lifter.
After the application uses said structure, have the advantages that
The most above-mentioned ceramic sand grinding machine has the features such as hardness height, good, the life-span length of wearability, thus does not haves conduction, magnetic conduction, gold
Belong to ion and be mixed into the phenomenons such as slurry, it is adaptable to large batch of slurrying works, and improves production efficiency.
The setting of the most above-mentioned zirconium oxide bead, and diameter is at 2-4mm, can make slurry quickly, reliable separation.Sand mill starts
Time, zirconium oxide bead and slurry do high speed centrifugation motion, and slurry quickly divides under centrifugal force, shaft and zirconium oxide bead effect of impact
Dissipating, the shock of slurry can be made slurry quickly reach dispersion with the reunion composition of dispersed paste by simultaneous oxidation zirconium pearl.It addition,
The setting of above-mentioned propeller blade, can further speed up dispersion effect.
The most above-mentioned three pairs of electrode groups, switching switch and the setting of resistance instrument, utilizing, ceramic sand grinding machine is non-conductive, and carbon is received
Under the characteristic premise of mitron powdered conductive, make full use of the organic nonconducting spy of dispersion solvent in carbon nanotube conducting slurry
Property, when carbon nanotube powder is not mixed homogeneously with nonconducting organic dispersion solvent, along with the time passage ground, resistance instrument institute
Resistance value in the loop that the every pair of electrode group recorded is constituted is all by from large to small.By the control to switching switch, can distinguish
Resistance value in every pair of electrode group is monitored.Set in the time period at one, carry out resistance test at least one times, once survey
Examination needs to test the resistance value in three pairs of resistor group successively simultaneously, when continuous three times are tested, and the resistance in three pairs of electrode groups
When value is all held essentially constant, the dispersion effect of slurry is optimal, is also the scattered final node of slurry.Above-mentioned three pairs of electrode groups
Being arranged at different depth, therefore can test ceramic sand grinding machine slurry from top to bottom, test reliability is high.It addition,
The setting of above-mentioned timer, can go out scattered finish node by automatic decision, the setting time after detecting finish node
In, shaft can be automatically controlled and stop stirring.
The setting of the most above-mentioned plastic protection cover, can prevent the zirconium oxide bead damage to test electrode, test electrode from using the longevity
Life is long, and it is the most accurate to test.It addition, the setting of material path, do not affect carbon nanotube conducting slurry and pass from material path, and prevent
Zirconium oxide bead enters.
The setting of the most above-mentioned liquid level sensor, can detect the liquid level of carbon nanotube conducting slurry, automatically when exceeding
When setting liquid level, can automatic alarm.It addition, the adjustable height of shaft can also be adjusted automatically according to setting liquid level.
The preferred implementation of the application described in detail above, but, the application is not limited in above-mentioned embodiment
Detail, in the technology concept of the application, the technical scheme of the application can be carried out multiple equivalents, this
A little equivalents belong to the protection domain of the application.
Claims (5)
1. the carbon nano tube paste dispersion effect tester that can prevent from testing electrode damage, it is characterised in that: include pottery
Grinder, carbon nanotube conducting slurry, zirconium oxide bead, the three pairs of electrode groups, switching switch, timer, resistance instrument and protective cover；
Ceramic grinder be provided centrally with shaft, shaft top is connected with stirring motor, shaft can stirring electricity
Rotate under the drive of machine；
Carbon nanotube conducting slurry and zirconium oxide bead it is filled with, a diameter of 2-4mm of zirconium oxide bead in ceramic grinder；
Being provided with three pairs of electrode groups on the internal face of ceramic grinder, three pairs of electrode components Wei electrode group one, electrode group two
With electrode group three；
Every pair of electrode group all includes that two test electrodes, two test electrodes are respectively electrode a and electrode b, electrode a and electrode b
Between constant distance, and electrode a and electrode b is in the same liquid level degree of depth of carbon nanotube conducting slurry；
The periphery of each test electrode is provided with plastic safety cover, the most hemispherical structure of each plastic safety cover, and by right
Including the test electrode-clad answered；Being provided with several material paths on each plastic safety cover, the aperture of each material path is equal
For 0.5-1.5mm；
Electrode group one is arranged on the internal face top of ceramic grinder and is positioned at below the liquid level face of carbon nanotube conducting slurry；Electricity
Pole group two is arranged in the middle part of the internal face of ceramic grinder；Electrode group three is arranged on bottom the internal face of ceramic grinder；
Electrode a in every pair of electrode group and electrode b is connected with resistance instrument after all being drawn by wire and form parallel circuit；?
Every parallel circuit is provided with a switching switch；
Being built-in with timer in resistance instrument, resistance instrument is connected with stirring motor.
The carbon nano tube paste dispersion effect tester that can prevent from testing electrode damage the most according to claim 1, it is special
Levy and be: the aperture of each material path is 1mm.
The carbon nano tube paste dispersion effect tester that can prevent from testing electrode damage the most according to claim 1, it is special
Levy and be: the height of shaft can lift.
The carbon nano tube paste dispersion effect tester that can prevent from testing electrode damage the most according to claim 1, it is special
Levy and be: described ceramic grinder is provided with liquid level sensor.
The carbon nano tube paste dispersion effect tester that can prevent from testing electrode damage the most according to claim 1, it is special
Levy and be: being provided with on described shaft can be by the propeller blade of ceramic grinding motor spindle pulp lifter.
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161207 |
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| RJ01 | Rejection of invention patent application after publication |