CN106531284A - Conductive paste and preparation method thereof - Google Patents
Conductive paste and preparation method thereof Download PDFInfo
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- CN106531284A CN106531284A CN201611179955.3A CN201611179955A CN106531284A CN 106531284 A CN106531284 A CN 106531284A CN 201611179955 A CN201611179955 A CN 201611179955A CN 106531284 A CN106531284 A CN 106531284A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/06—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/22—Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
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- 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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Abstract
The invention discloses conductive paste. The conductive paste comprises the following constituents based by parts by mass: 50-70 parts of water, 5-20 parts of sodium chloride, 1-5 parts of glycerin, 5-20 parts of macromolecule substance, 1-5 parts of natural plant carbon particle, 1-5 parts of plant extract and 1-3 parts of thickening agent, wherein the plant extract is one or more of a honeylocust fruit extract, a hibiscus syriacus extract and a gleditsia sinensis extract. The conductive paste is short in effective impedance time, does not contain a substance harmful to a human body, is easy to clean and has relatively high safety performance, the added plant carbon can be used for making conductive factors uniformly distributed and effectively reducing the impedance between human skin and an electrode, and the conductive paste has excellent conductive performance.
Description
Technical field
The present invention relates to electricity material field.It is more particularly related to a kind of conductive paste and preparation method thereof.
Background technology
Conductive paste be it is a kind of be widely used in the fields such as scientific research, teaching, medical treatment, to reduce junction point contact resistance
Electricity material.Conductive paste can make the UNICOM of the electrode and human body of detection electrocardiogram, electroencephalogram etc. tightr, and reduce electrode
Resistance between human body, is that the detection such as electrocardiogram, electroencephalogram is necessary.
Conductive paste generally comprises two solvents：Gel and conductive ion.At present, the main high score using synthetic
Sub- polymer is used as gel components, sodium ion, potassium ion etc. and is used as conductive ion component.The conductive paste of application is general at present
Exist：1) time for reaching virtual impedance is longer；2) maintain the time of virtual impedance short；3) or even virtual impedance can not be reached；
4) it is difficult with rear cleaning, the problems such as.
The content of the invention
Present invention aim to address above-mentioned problem, and the advantage that at least will be described later is provided.
In order to realize these purposes of the invention and further advantage, there is provided a kind of conductive paste, including following each matter
The each component of amount number：Water 50-70 parts, Sodium Chloride 5-20 part, glycerol 1-5 parts, polymer substance 5-20 parts, natural plants charcoal
Granule 1-5 parts, plant extract 1-5 parts, thickening agent 1-3 parts, wherein, the plant extract is Fructus Gleditsiae Abnormalis extract, Folium Hibisci
One or more in extract, Fructus Gleditsia acupuncture extract.
Preferably, including each component of following each mass fraction：60 parts of water, 15 parts of Sal, 4 parts of glycerol, macromolecule
10 parts of material, 4 parts of natural plants charcoal granule, 5 parts of plant extract, 2 parts of thickening agent.
Preferably, the polymer substance be rice flour, agar, one or more in dextrin.
Preferably, the natural plants charcoal granule be bamboo charcoal, coconut husk charcoal, one or more in Linesless charcoal.
Preferably, wherein Fructus Gleditsiae Abnormalis extract：Hibiscus syriacus L. leaf extract：The mass ratio of Fructus Gleditsia acupuncture extract is 1：2：1.
Preferably, the thickening agent is sodium carboxymethyl cellulose, hydroxyethyl cellulose, xanthan gum, carrageenan, guar gum
In one or more.
It is a further object of the present invention to provide a kind of preparation method of conductive paste, comprises the steps：
1) Sodium Chloride, glycerol and the polymer substance for taking above-mentioned mass fraction is soluble in water, and is sufficiently stirred for；
2) under agitation, continue up and state step 1) in addition natural plants charcoal granule and plant extract；
3) under agitation, add thickening agent to above-mentioned steps are 2) middle, and disperse which, cooling obtains conductive paste.
Preferably, step 3) in dispersing mode be colloid mill dispersion, the one kind in ultrasonic disperse.
Preferably, step 1) in Sodium Chloride, glycerol and polymer substance be 35-40 DEG C of condition in bath temperature
Under soluble in water, step 2) in be slowly added natural plants charcoal granule, continue stirring 10-15min after adding plant charcoal granule, then
Plant extract is slowly added to, after adding plant extract 10min, with the ultraviolet light that wavelength the is 240-280nm mixing
Solution 5-8min, step 3) in thickening agent dispersion after again with ultraviolet light 2-3min that wavelength is 240-280nm, take out afterwards
It is cooled to room temperature and obtains final product conductive paste.
Preferably, step 2) in after natural plants charcoal granule and plant extract is added, then the mixed solution is taken
Go out, be put in supersound process 3-5min in supersonic generator, the frequency of ultrasound wave is 30-35kHz.
The present invention at least includes following beneficial effect：
(1) preparation process is simple of the present invention, the conductive paste electric conductivity for preparing is excellent and the conductive paste reaches effectively
The time of impedance is short；
(2) extracted form natural plant of present invention addition has following functions：A, surface active function, can improve the conduction
Sanitary characteristics after cream use, reduce or without detergent, improve its performance easy to clean；B, bactericidal antiphlogistic function, can improve institute
State the storage characteristics of conductive paste, it is to avoid using chemical bactericides such as preservative, improve safety；C, health care, it is described effectively into
Divide and have functions that to conserve hair and scalp, will not hair and scalp be caused to damage after use, and with certain maintenance work(
Effect；
(3) present invention processes the mild condition of conductive paste, effectively protects using polymer substance as the carrier of conductive paste
The structure of macromolecular material has been protected, and preferably ionophore function can be provided for product；
(4) the natural plants charcoal granule of present invention addition can adsorb charged ion so that charged ion is more evenly distributed, together
When can also increase the uniformity coefficient of the conductive paste each component, and product texture can be increased and play a part of shield electrode,
And the electric conductivity of conductive paste can be effectively improved；
(5) conductive paste of the invention is without compositions such as any preservative, essence, to human body without any injury, will not
Puzzlement is produced to experimenter, and it is environmentally friendly；
(6) produce without poisonous and harmful substance in the equal nonhazardouss of raw material used herein and the course of processing, using safety, and
Can deposit more than 6 months at ambient temperature, the product of the present invention has higher-security, can be used for medical treatment, scientific research, teaching
In field；
(7) the conductive ointment preparation that the present invention is improved is simple, and processing conditionss are gentle, it is easy to large-scale production, and do not add
Plus any heavy metal, not only can reduces cost, and the murder by poisoning that heavy metal is brought will not be produced, environmental protection is suitable to each neck
Promote the use of in domain；
(8) conductive paste of the invention uses ultraviolet light, can be sterilized in process, be carried out from source
Sterilizing, improves the storage time of conductive paste；Supersound process is carried out after plant charcoal granule and plant extract is added, can not only be made
Obtain plant charcoal granule and plant extract is evenly dispersed in conductive paste, moreover it is possible to so that the molecule in conductive paste diminishes, enter one
Step improves the electric conductivity and easy cleaning performance of conductive paste.
Part is embodied by the further advantage of the present invention, target and feature by description below, and part will also be by originally
The research of invention and practice and be understood by the person skilled in the art.
Specific embodiment
With reference to specific embodiment, the present invention is described in further detail, to make those skilled in the art's reference say
Bright book word can be implemented according to this.
It should be noted that experimental technique described in following embodiments, if no special instructions, is conventional method, institute
Reagent and material are stated, if no special instructions, is commercially obtained.
Embodiment 1：
A kind of conductive paste, including each component of following each mass fraction：70 parts of water, 20 parts of Sodium Chloride, glycerol 3 part, meter
20 parts of powder, 5 parts of bamboo charcoal, 3 parts of Fructus Gleditsiae Abnormalis extract, 3 parts of sodium carboxymethyl cellulose.
The preparation method of conductive paste, comprises the following steps：
1) take 20 parts of Sodium Chloride, 3 parts of glycerol, 20 parts of rice flour to be dissolved in 70 parts of water, and be sufficiently stirred for；
2) under agitation, 3 parts of 5 parts of bamboo charcoal and Fructus Gleditsiae Abnormalis extract are added to above-mentioned steps are 1) middle；
3) under agitation, add 3 parts of sodium carboxymethyl cellulose to above-mentioned steps are 2) middle, and its uniform point is made with ultrasound wave
Dissipate, that is, obtain conductive paste.
Embodiment 2：
A kind of conductive paste, including each component of following each mass fraction：60 parts of water, 15 parts of Sodium Chloride, 4 parts of glycerol, paste
10 parts of essence, 4 parts of coconut husk charcoal, 5 parts of Hibiscus syriacus L. leaf extract, 2 parts of hydroxyethyl cellulose.
The preparation method of conductive paste, comprises the following steps：
1) take 15 parts of Sodium Chloride, 4 parts of glycerol, 10 parts of dextrin to be dissolved in 60 parts of water, and be sufficiently stirred for；
2) under agitation, 5 parts of 4 parts of coconut husk charcoal and Hibiscus syriacus L. leaf extract are added to above-mentioned steps are 1) middle；
3) under agitation, add 2 parts of hydroxyethyl cellulose to above-mentioned steps are 2) middle, blend compounds body mill makes which dispersed,
Conductive paste is obtained.
Embodiment 3：
A kind of conductive paste, including each component of following each mass fraction：50 parts of water, 6 parts of Sodium Chloride, 1 part of glycerol, agar
5 parts, 1 part of Linesless charcoal, 1 part of Fructus Gleditsia acupuncture extract, 1 part of xanthan gum.
The preparation method of conductive paste, comprises the following steps：
1) take 6 parts of Sodium Chloride, 1 part of glycerol, 5 parts of agar to be dissolved in 50 parts of water, and be sufficiently stirred for；
2) under agitation, 1 part of 1 part of Linesless charcoal and Fructus Gleditsia acupuncture extract are added to above-mentioned steps are 1) middle；
3) under agitation, add 1 part of xanthan gum to above-mentioned steps are 2) middle, and make which dispersed with ultrasound wave, that is, obtain
Conductive paste.
Embodiment 4：
A kind of conductive paste, including each component of following each mass fraction：60 parts of water, 15 parts of Sodium Chloride, 4 parts of glycerol, paste
10 parts of essence, 4 parts of coconut husk charcoal, 1.25 parts of Fructus Gleditsiae Abnormalis extract, 2.5 parts of Hibiscus syriacus L. leaf extract, 1.25 parts of Fructus Gleditsia acupuncture extract, carrageenan
2 parts.
The preparation method of conductive paste, comprises the following steps：
1) take 15 parts of Sodium Chloride, 4 parts of glycerol, 10 parts of dextrin to be dissolved in 60 parts of water, and be sufficiently stirred for；
2) under agitation, 4 parts of coconut husk charcoal and 1.25 parts of Fructus Gleditsiae Abnormalis extract, Hibiscus syriacus L. leaf extract are added to above-mentioned steps are 1) middle
2.5 parts, 1.25 parts of Fructus Gleditsia acupuncture extract；
3) under agitation, add 2 parts of carrageenan to above-mentioned steps are 2) middle, blend compounds body mill makes which dispersed, that is, obtains
Conductive paste.
Embodiment 5：
A kind of conductive paste, including each component of following each mass fraction：70 parts of water, 20 parts of Sodium Chloride, 2 parts of glycerol, paste
1 part of 20 parts of essence, 3 parts of coconut husk charcoal, 2 parts of Fructus Gleditsiae Abnormalis extract, 1 part of Hibiscus syriacus L. leaf extract, 3 parts of carrageenan, 2 parts of argentum powder and copper powder.
The preparation method of conductive paste, comprises the following steps：
1) 20 parts of Sodium Chloride, 2 parts of glycerol, 20 parts of rice flour are taken 70 parts of water is dissolved under conditions of bath temperature is for 37 DEG C
In, and be sufficiently stirred for；
2) under agitation, add 3 parts of coconut husk charcoal to above-mentioned steps are 1) middle, after adding coconut husk charcoal granule, continue stirring 15min,
1 part of 2 parts of Fructus Gleditsiae Abnormalis extract and Hibiscus syriacus L. leaf extract are slow added into, after continuing stirring 10min, then the mixed solution are taken out,
Supersound process 3min in supersonic generator is put in, the frequency of ultrasound wave is 35kHz, afterwards with the ultraviolet light that wavelength is 240nm
Irradiate mixed solution 5min；
3) under agitation, add 3 parts of carrageenan to above-mentioned steps are 2) middle, and make which dispersed with ultrasound wave, then use ripple
Ultraviolet light 2min of a length of 240nm, afterwards taking-up are cooled to room temperature and obtain final product conductive paste.
Embodiment 6：
A kind of conductive paste, including each component of following each mass fraction：60 parts of water, 15 parts of Sodium Chloride, glycerol 4 part, meter
1 part of 10 parts of powder, 4 parts of Linesless charcoal, 2 parts of Fructus Gleditsia acupuncture extract, 3 parts of Hibiscus syriacus L. leaf extract, 2 parts of guar gum, 1 part of argentum powder and copper powder.
The preparation method of conductive paste, comprises the following steps：
1) 15 parts of Sodium Chloride, 4 parts of glycerol, 10 parts of rice flour are taken 60 parts of water is dissolved under conditions of bath temperature is for 40 DEG C
In, and be sufficiently stirred for；
2) under agitation, add 4 parts of Linesless charcoal to above-mentioned steps are 1) middle, continue stirring 12min after adding charcoal particle, then delay
It is slow to add 3 parts of 2 parts of Fructus Gleditsia acupuncture extract and Hibiscus syriacus L. leaf extract, after continuing stirring 10min, then the mixed solution is taken out, put
Supersound process 5min in supersonic generator, the frequency of ultrasound wave is 30kHz, afterwards with the ultraviolet lighting that wavelength is 257nm
Penetrate mixed solution 6min；
3) under agitation, add 2 parts of guar gum to above-mentioned steps are 2) middle, and make which dispersed with ultrasound wave, then use ripple
Ultraviolet light 3min of a length of 257nm, afterwards taking-up are cooled to room temperature and obtain final product conductive paste.
Embodiment 7：
A kind of conductive paste, including each component of following each mass fraction：50 parts of water, 5 parts of Sodium Chloride, 1 part of glycerol, agar
5 parts, 1 part of bamboo charcoal, 1 part of Fructus Gleditsiae Abnormalis extract, 1 part of guar gum.
The preparation method of conductive paste, comprises the following steps：
1) take 5 parts of Sodium Chloride, 1 part of glycerol, 5 parts of agar to be dissolved in 50 parts of water under conditions of bath temperature is for 38 DEG C,
And be sufficiently stirred for；
2) under agitation, add 1 part of bamboo charcoal to above-mentioned steps are 1) middle, continue stirring 10min after adding bamboo charcoal particle, then delay
It is slow to add 1 part of Fructus Gleditsiae Abnormalis extract, after continuing stirring 10min, then the mixed solution is taken out, be put in ultrasound in supersonic generator
4min is processed, the frequency of ultrasound wave is 32kHz, afterwards with the ultraviolet light that wavelength the is 280nm mixed solution 8min；
3) under agitation, add 1 part of guar gum to above-mentioned steps are 2) middle, and make which dispersed with ultrasound wave, then use ripple
Ultraviolet light 3min of a length of 280nm, afterwards taking-up are cooled to room temperature and obtain final product conductive paste.
Embodiment 8：
A kind of conductive paste, including each component of following each mass fraction：60 parts of water, 15 parts of Sodium Chloride, glycerol 4 part, meter
10 parts of powder, 2 parts of Linesless charcoal, 2 parts of bamboo charcoal, 1.25 parts of Fructus Gleditsiae Abnormalis extract, 2.5 parts of Hibiscus syriacus L. leaf extract, 1.25 parts of Fructus Gleditsia acupuncture extract,
2 parts of hydroxyethyl cellulose.
The preparation method of conductive paste, comprises the following steps：
1) 15 parts of Sodium Chloride, 4 parts of glycerol, 10 parts of rice flour are taken 60 parts of water is dissolved under conditions of bath temperature is for 40 DEG C
In, and be sufficiently stirred for；
2) under agitation, add 2 parts of 2 parts of Linesless charcoal and bamboo charcoal to above-mentioned steps are 1) middle, continue to stir after adding charcoal granule
15min, is slow added into 1.25 parts of 1.25 parts of Fructus Gleditsiae Abnormalis extract, 2.5 parts of Hibiscus syriacus L. leaf extract and Fructus Gleditsia acupuncture extract, continues to stir
After mixing 10min, then the mixed solution is taken out, be put in supersound process 5min in supersonic generator, the frequency of ultrasound wave is
32kHz, afterwards with the ultraviolet light that wavelength the is 260nm mixed solution 7min；
3) under agitation, add 2 parts of hydroxyethyl cellulose to above-mentioned steps are 2) middle, and make which dispersed with ultrasound wave,
Again with ultraviolet light 3min that wavelength is 260nm, taking-up afterwards is cooled to room temperature and obtains final product conductive paste.
In order to illustrate beneficial effects of the present invention, the present invention carries out impedance detection, measure side to the conductive paste of embodiment 1-8
Method is：Conductive paste is coated on electrode, electrode is connected to head, electrode is connected with impedance measuring instrument again, is read at interval of 30min
Go out the impedance readings of every group of conductive paste, obtain the data in table 1：
Table 1
The primary impedance readings of conductive paste illustrate just in below 5K Ω, then conductive paste reach virtual impedance time it is short,
And in below 5K Ω, the impedance of conductive paste then illustrates that the electric conductivity of conductive paste is excellent.Embodiment 1-8 is led as can be seen from Table 1
The impedance initial reading of electric cream is respectively less than 5K Ω, and with the continuous propulsion of test, the impedance of conductive paste is gradually reduced and finally becomes
Closely with balance, the impedance after finally balancing is respectively less than 2K Ω, thus, it can be known that the conductive paste electric conductivity of the present invention is excellent；And it is logical
Table 1 is crossed as can be seen that the impedance after the conductive paste balance of embodiment 5-8 is respectively less than the conductive paste of embodiment 1-4, therefore understands to implement
The electric conductivity of the conductive paste of example 5-8 is better than embodiment 1-4.
Simultaneously to the conductive paste of embodiment 1-8, whether easy cleaning performance is measured, and takes commercially available conductive paste as right
According to group, the conductive paste of the conductive paste and matched group of Example 1-8 is each 10 grams respectively, is applied on human body skin, then is rinsed,
As a result find that the conductive paste of 1-8 is rinsed well by need not adding any abluent, and commercially available conductive paste then needs to add
The abluent of 0.56g can just be cleaned up.
The effective time of its preservation at room temperature by the preservation at room temperature of the conductive paste of embodiment 1-8, is determined, is as a result found
Under the conductive paste room temperature of embodiment 1-4, effective preservation time is 6-12 month, effective preservation under the conductive paste room temperature of embodiment 5-8
Time is 10-14 month.
The conductive paste of embodiment 1-8 is carried out into abnormal smells from the patient test, the conductive paste of embodiment 1-8 is found without any abnormal smells from the patient, because
This will not produce penetrating odor in use and then user is interfered.
The conductive paste of embodiment 1-8 is applied on scalp and hair that same person head does not exist together respectively, is looked into after 1h
See be coated with the scalp and hair of conductive paste whether have damage, as a result find scalp of the conductive paste of embodiment 1-8 to people
With hair without any damage.
Although embodiment of the present invention is disclosed as above, which is not restricted to listed by description and embodiment
With, it can be applied to various suitable the field of the invention completely, for those skilled in the art, can be easily
Other modification is realized, therefore under the general concept limited without departing substantially from claim and equivalency range, the present invention is not limited
In specific details and shown here as the embodiment with description.
Claims (10)
1. a kind of conductive paste, it is characterised in that including each component of following each mass fraction：Water 50-70 parts, Sodium Chloride 5-20
Part, glycerol 1-5 parts, polymer substance 5-20 parts, natural plants charcoal granule 1-5 parts, plant extract 1-5 parts, thickening agent 1-3
Part, wherein, the plant extract is Fructus Gleditsiae Abnormalis extract, Hibiscus syriacus L. leaf extract, one or more in Fructus Gleditsia acupuncture extract.
2. conductive paste as claimed in claim 1, it is characterised in that including each component of following each mass fraction：60 parts of water, food
15 parts of salt, 4 parts of glycerol, 10 parts of polymer substance, 4 parts of natural plants charcoal granule, 5 parts of plant extract, 2 parts of thickening agent.
3. conductive paste as claimed in claim 1, it is characterised in that the polymer substance is rice flour, agar, in dextrin
Plant or several.
4. conductive paste as claimed in claim 1, it is characterised in that the natural plants charcoal granule is bamboo charcoal, coconut husk charcoal, Linesless charcoal
In one or more.
5. conductive paste as claimed in claim 1, it is characterised in that the Fructus Gleditsiae Abnormalis extract：Hibiscus syriacus L. leaf extract：Fructus Gleditsia acupuncture is carried
The mass ratio for taking thing is 1：2：1.
6. conductive paste as claimed in claim 1, it is characterised in that the thickening agent is that sodium carboxymethyl cellulose, ethoxy are fine
One or more in dimension element, xanthan gum, carrageenan, guar gum.
7. a kind of preparation method of the conductive paste as described in claim 1-6 any one, it is characterised in that including following step
Suddenly：
1) Sodium Chloride, glycerol and the polymer substance for taking above-mentioned mass fraction is soluble in water, and is sufficiently stirred for；
2) under agitation, continue up and state step 1) in addition natural plants charcoal granule and plant extract；
3) under agitation, add thickening agent to above-mentioned steps are 2) middle, and disperse which, cooling obtains conductive paste.
8. the preparation method of conductive paste as claimed in claim 7, it is characterised in that step 3) in dispersing mode be colloid mill point
One kind in scattered, ultrasonic disperse.
9. the preparation method of conductive paste as claimed in claim 7, it is characterised in that step 1) in Sodium Chloride, glycerol and
Polymer substance bath temperature be 35-40 DEG C under conditions of soluble in water, step 2) in be slowly added natural plants charcoal granule,
Continue stirring 10-15min after adding plant charcoal granule, be slow added into plant extract, after adding plant extract 10min,
With the ultraviolet light that wavelength the is 240-280nm mixed solution 5-8min, step 3) in thickening agent dispersion after with wavelength be again
Ultraviolet light 2-3min of 240-280nm, afterwards taking-up are cooled to room temperature and obtain final product conductive paste.
10. the preparation method of conductive paste as claimed in claim 7, it is characterised in that step 2) in adding natural plants charcoal
After granule and plant extract, then the mixed solution is taken out, be put in supersound process 3-5min in supersonic generator, ultrasound wave
Frequency be 30-35kHz.
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| CN107062343A (en) * | 2017-06-13 | 2017-08-18 | 赣州市经济技术开发区旺利机械加工厂 | A kind of loopful is protected without the exclusive oil smoke decomposing, purifying machine of oil smoke |
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| CN109038006A (en) * | 2018-08-03 | 2018-12-18 | 重庆新原港科技发展有限公司 | Efficient nano conductive grease is reducing the application being electrically connected in electrical contact impedance |
| CN114129741A (en) * | 2021-12-16 | 2022-03-04 | 深圳市美的连医疗电子股份有限公司 | Medical conductive paste and preparation method thereof |
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Application publication date: 20170322 |