CN106548829B - The preparation method of conductive paste - Google Patents
The preparation method of conductive paste Download PDFInfo
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- CN106548829B CN106548829B CN201611111124.2A CN201611111124A CN106548829B CN 106548829 B CN106548829 B CN 106548829B CN 201611111124 A CN201611111124 A CN 201611111124A CN 106548829 B CN106548829 B CN 106548829B
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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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- 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
Abstract
The invention discloses a kind of preparation methods of conductive paste, include the following steps：Glycerine and sodium chloride water dissolution are taken, the pH value for adjusting solution is 56；Natural polysaccharide substance is taken to be added in the solution of step 1, then heating water bath maintains the temperature to continue to stir to 90 100 DEG C while stirring；Thickener is added into step 2, stirring starts to cool down to after being completely dissolved, and is cooled to 60 70 DEG C, then insulated and stirred；Product obtained by step 3 is cooled to room temperature up to conductive paste.Add or generate without poisonous and harmful substance in process of the present invention, obtained product with excellent electric conductivity, can store at ambient temperature and with rear easy cleaning.
Description
Technical field
The present invention relates to electricity material fields.It is more particularly related to a kind of preparation side of radio frequency cream
Method.
Background technology
Conductive paste is widely used in the connection of electronic device, and to reduce tie point contact resistance, conductive paste is because directly
Or mediate contact human body, safety are particularly important.Conductive paste can make the electrode and human body of detection electrocardiogram, electroencephalogram etc.
Unicom is closer, and reduces the resistance between electrode and human body, is necessary to the detections such as electrocardiogram, electroencephalogram.
Conductive paste includes two basic components：Gel and conductive ion.Currently, mainly utilizing artificial synthesized polyphosphazene polymer
It closes object and is used as gel components, and the ingredients such as some chemical reagent, preservative, essence can be added.Artificial synthesized polyphosphazene polymer
The residue problem of some harmful chemical reagent can limit making for product in the refractory organics and conductive paste building-up process of object
Use range.
The problems such as existing conductive paste is divided into external and two kinds of the country, and all existence component is complex.External conductive paste performance
It is excellent, but price general charged is higher, and need Cord blood；Domestic conductive paste electric conductivity is poor, irritant smell or adds
Flavoring essence, can interfere subject, and clean inconvenience, have certain toxic action to human body after use and greasy feeling is strong
It is strong.
Invention content
It is an object of the invention to solve conductive paste to need low-temperature preservation and poisonous and harmful substances and difficult cleaning of ask
Topic, and the advantages of at least will be described later is provided.
In order to realize these purposes and other advantages according to the present invention, a kind of preparation method of conductive paste is provided, is wrapped
Include following steps：
Step 1: counting in parts by weight, 5-10 parts of glycerine and 10-15 parts of sodium chloride 50 parts of water dissolutions, the mistake of dissolving are taken
Journey is also added into 4-6 parts of sodium trimetaphosphate, and the pH value for adjusting solution is 5-6, adds 1-3 parts of polyanion cellulose,
Stirring and dissolving；
Step 2: 28-29.5 parts of natural polysaccharide substances is taken to be added in the solution of step 1, then water-bath adds while stirring
Heat adds 3-5 parts of starch-acrylate graft copolymer to 95-100 DEG C, and the temperature is maintained to continue to stir；
Step 3: 0.5-2 part thickeners are added into step 2, stirring is to being completely dissolved, then 1-4 parts of addition under stiring
Sodium alginate or potassium alginate and carry out ultrasonic disperse 5-10min, after dispersion in water-bath insulated and stirred 5-8min, then into
Row cooling, is cooled to 60-70 DEG C, then insulated and stirred；
Step 4: being cooled to room temperature the product obtained by step 3 up to conductive paste；
The thickener is one or more of carragheen, konjac glucomannan, xanthans, gelatin；
The natural polysaccharide substance is one or more of carboxymethyl cellulose, hyaluronic acid, chitosan.
Preferably, the cooling rate in step 3 is 5 DEG C/min, soaking time 3-6min.
Preferably, it is 30-60min, mixing speed 500-1000r/min to continue mixing time in step 2.
The present invention includes at least following advantageous effect：
(1) preparation process of the present invention is simple, is produced without poisonous and harmful substance in the equal nonhazardous of used raw material and process
It is raw, it is safe to use to human body without any injury, and without any penetrating odor, obtained product with excellent electric conductivity,
Can store under room temperature 6 months or more, without penetrating odor and with it is rear easy to clean the advantages that, product of the invention has
Higher-security can be used for the fields such as medical treatment, scientific research, teaching；
(2) present invention uses gel components of the natural polysaccharide substance as conductive paste, and processing is conductive under mild conditions
Cream is effectively protected the structure of natural macromolecular material using faintly acid cold-water solution natural macromolecular material, can be preferably
Ionophore function is provided for product；
(3) addition of the invention for being added to sodium trimetaphosphate can promote the formation of conductive paste gel and improve the steady of gel
It is qualitative, and sodium trimetaphosphate is also a kind of electrolyte, can increase the electric conductivity of conductive paste；Polyanion cellulose is added to
It in the gel rubber system of conductive paste, is combined with thickener so that gel rubber system salt resistant character is excellent and structure is more stable, is not necessarily to low temperature
Preservation is also less likely to occur to go bad；Starch-acrylate graft copolymer has preferable moisture retention, can guarantee the aqueous of conducting resinl
Amount, so that electrolyte is in the electric conductivity that ionized state improves conducting resinl；Sodium alginate or potassium alginate have very
The effect of strong protecting colloid, while strong to the emulsifying ability of grease so that conductive paste is convenient for cleaning, in addition sodium alginate or
The addition of person's potassium alginate is more it is easier that conductive paste forms the stronger lotion of homogeneity.
Part is illustrated to embody by further advantage, target and the feature of the present invention by following, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Specific implementation mode
With reference to specific embodiment, the present invention is described in further detail, to enable those skilled in the art's reference say
Bright book word can be implemented according to this.
It should be noted that experimental method described in following embodiments is unless otherwise specified conventional method, institute
Reagent and material are stated, unless otherwise specified, is commercially obtained.
Embodiment 1：
A kind of preparation method of conductive paste, includes the following steps：
Step 1: taking 5 parts by weight of glycerine and 15 parts by weight water of sodium chloride, 50 parts by weight to dissolve, with hydrochloric acid conditioning solution
PH value is 5-6；
Step 2: 28.5 parts by weight chitosans is taken to be added in the solution of step 1, then heating water bath is extremely while stirring
95 DEG C, the temperature is maintained to continue to stir 30min, mixing speed 1000r/min；
Step 3: 1.5 parts by weight carragheens are added into step 2, stirring starts to cool down to after being completely dissolved, cooling speed
Degree is 5 DEG C/min, is cooled to 70 DEG C, then insulated and stirred, soaking time 3min；
Step 4: being cooled to room temperature the product obtained by step 3 up to conductive paste.
Embodiment 2：
A kind of preparation method of conductive paste, includes the following steps：
Step 1: taking the water dissolution of 8.5 parts by weight of glycerine and sodium chloride 10 parts by weight, 50 parts by weight, adjusted with hydrochloric acid molten
The pH value of liquid is 5-6；
Step 2: 29.5 parts by weight carboxymethyl celluloses is taken to be added in the solution of step 1, then water-bath while stirring
100 DEG C are heated to, the temperature is maintained to continue to stir 45min, mixing speed 800r/min；
Step 3: 2 parts by weight konjac glucomannans are added into step 2, stirring starts to cool down to after being completely dissolved, cooling rate
For 5 DEG C/min, it is cooled to 60 DEG C, then insulated and stirred, soaking time 6min；
Step 4: being cooled to room temperature the product obtained by step 3 up to conductive paste.
Embodiment 3：
A kind of preparation method of conductive paste, includes the following steps：
Step 1: taking 10 parts by weight of glycerine and the sodium chloride 11.5 parts by weight water dissolution of 50 parts by weight, adjusted with hydrochloric acid
The pH value of solution is 5-6；
Step 2: 28 parts by weight chitosans is taken to be added in the solution of step 1, then while stirring heating water bath to 95
DEG C, maintain the temperature to continue to stir 60min, mixing speed 500r/min；
Step 3: 0.5 parts by weight xanthans is added into step 2, stirring starts to cool down to after being completely dissolved, cooling speed
Degree is 5 DEG C/min, is cooled to 65 DEG C, then insulated and stirred, soaking time 5min；
Step 4: being cooled to room temperature the product obtained by step 3 up to conductive paste.
Embodiment 4：
A kind of preparation method of conductive paste, includes the following steps：
Step 1: taking 50 parts by weight of 5 parts by weight of glycerine, 14 parts by weight of sodium chloride and 4 parts by weight of sodium trimetaphosphate
Water dissolution is 5-6 with the pH value of hydrochloric acid conditioning solution, adds the polyanion cellulose of 3 parts by weight, stirring and dissolving；
Step 2: 29 parts by weight hyaluronic acids is taken to be added in the solution of step 1, then heating water bath is extremely while stirring
95 DEG C, the starch-acrylate graft copolymer of 3 parts by weight is added, is stirred, maintained the temperature to continue to stir 40min, stir
It is 800r/min to mix speed；
Step 3: 2 parts by weight gelatin are added into step 2, then the sodium alginates of 3 parts by weight is added under stiring and goes forward side by side
Row ultrasonic disperse 10min, after dispersion in water-bath insulated and stirred 8min, start to cool down later, cooling rate be 5 DEG C/min, drop
Temperature is to 70 DEG C, then insulated and stirred, soaking time 5min；
Step 4: being cooled to room temperature the product obtained by step 3 up to conductive paste.
Embodiment 5：
A kind of preparation method of conductive paste, includes the following steps：
Step 1: taking 50 parts by weight of 7 parts by weight of glycerine, 13 parts by weight of sodium chloride and 6 parts by weight of sodium trimetaphosphate
Water dissolution is 5-6 with the pH value of hydrochloric acid conditioning solution, adds the polyanion cellulose of 1 parts by weight, stirring and dissolving；
Step 2: 28.5 parts by weight chitosans is taken to be added in the solution of step 1, then heating water bath is extremely while stirring
100 DEG C, the starch-acrylate graft copolymer of 5 parts by weight is added, is stirred, the temperature is maintained to continue to stir 30min,
Mixing speed is 1000r/min；
Step 3: 1.5 parts by weight gelatin are added into step 2, then the sodium alginate of 4 parts by weight is added under stiring simultaneously
Carry out ultrasonic disperse 7min, after dispersion in water-bath insulated and stirred 5min, start to cool down later, cooling rate be 5 DEG C/min, drop
Temperature is to 60 DEG C, then insulated and stirred, soaking time 5min；
Step 4: being cooled to room temperature the product obtained by step 3 up to conductive paste.
Embodiment 6：
A kind of preparation method of conductive paste, includes the following steps：
Step 1: taking 50 parts by weight of 7 parts by weight of glycerine, 12 parts by weight of sodium chloride and 5 parts by weight of sodium trimetaphosphate
Water dissolution is 5-6 with the pH value of hydrochloric acid conditioning solution, adds the polyanion cellulose of 2 parts by weight, stirring and dissolving；
Step 2: 29.5 parts by weight hyaluronic acids is taken to be added in the solution of step 1, then heating water bath while stirring
To 95 DEG C, the starch-acrylate graft copolymer of 4 parts by weight is added, is stirred, the temperature is maintained to continue to stir 60min,
Mixing speed is 600r/min；
Step 3: 1.5 parts by weight xanthans are added into step 2, then the potassium alginate of 3 parts by weight is added under stiring
And carry out ultrasonic disperse 10min, after dispersion in water-bath insulated and stirred 8min, start to cool down later, cooling rate be 5 DEG C/
Min is cooled to 65 DEG C, then insulated and stirred, soaking time 4min；
Step 4: being cooled to room temperature the product obtained by step 3 up to conductive paste.
In order to illustrate beneficial effects of the present invention, the conductive paste of embodiment 1-6 is subjected to impedance detection, assay method is：
On the electrode by conductive paste coating, electrode is connected to head, reconnects impedance measuring instrument, and primary conductive glue is read at interval of half an hour
Impedance readings, obtain the data in table 1：
Table 1
The impedance readings of conductive paste are in 5K Ω hereinafter, then illustrating that the electric conductivity of conductive paste is excellent.It leads 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, and the impedance of conductive paste, which is gradually reduced, finally to become
Closely with balance, the impedance after finally balancing is no more than 2K Ω, thus, it can be known that the conductive paste electric conductivity of the present invention is excellent.
To the conductive paste of embodiment 1-6, whether easy cleaning performance is measured simultaneously, respectively the conductive paste of Example 1-6
It 10 grams, is applied on human skin, then is rinsed, as a result, it has been found that the conductive paste of embodiment 1-3 needs to be added 0.05 gram or so
Cleaning agent can just be rinsed well, and the conductive paste of embodiment 4-6 can be rinsed well it is not necessary that any cleaning agent is added.
By the preservation at room temperature of the conductive paste of embodiment 1-6, the effective time of its preservation at room temperature is measured, is as a result invented
Effective preservation time is 6-12 months to the conductive paste of embodiment 1-3 at room temperature, conductive paste effective preservation at room temperature of embodiment 4-6
Time is 11-15 months.
The conductive paste of embodiment 1-6 is subjected to smell test, finds the conductive paste of embodiment 1-6 without any smell, because
This not will produce penetrating odor and then is interfered to user in use.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and embodiment shown and described herein.
Claims (3)
1. a kind of preparation method of conductive paste, which is characterized in that comprise the steps of：
Step 1: counting in parts by weight, the 50 parts of water dissolutions of 5-10 parts of glycerine and 10-15 parts of sodium chloride are taken, the process of dissolving is also
The sodium trimetaphosphate for adding 4-6 parts, the pH value for adjusting solution is 5-6, adds 1-3 parts of polyanion cellulose, is stirred
Dissolving；
Step 2: 28-29.5 parts of natural polysaccharide substances is taken to be added in the solution of step 1, then heating water bath is extremely while stirring
95-100 DEG C, 3-5 parts of starch-acrylate graft copolymer is added, the temperature is maintained to continue to stir；
Step 3: 0.5-2 part thickeners are added into step 2, stirring is to being completely dissolved, then the sea of 1-4 parts of addition under stiring
Mosanom or potassium alginate simultaneously carry out ultrasonic disperse 5-10min, after dispersion in water-bath insulated and stirred 5-8min, then dropped
Temperature is cooled to 60-70 DEG C, then insulated and stirred；
Step 4: being cooled to room temperature the product obtained by step 3 up to conductive paste；
The thickener is one or more of carragheen, konjac glucomannan, xanthans, gelatin；
The natural polysaccharide substance is one or more of carboxymethyl cellulose, hyaluronic acid, chitosan.
2. the preparation method of conductive paste as described in claim 1, which is characterized in that cooling rate in step 3 is 5 DEG C/
Min, soaking time 3-6min.
3. the preparation method of conductive paste as described in claim 1, which is characterized in that it is 30- to continue mixing time in step 2
60min, mixing speed 500-1000r/min.
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| CN109701062B (en) * | 2019-01-21 | 2020-12-11 | 东华理工大学 | Antistatic solid champignon and static eliminator comprising same |
| CN110655663A (en) * | 2019-10-29 | 2020-01-07 | 索思（苏州）医疗科技有限公司 | Medical conductive gel and preparation method thereof |
| CN110746617A (en) * | 2019-10-29 | 2020-02-04 | 索思（苏州）医疗科技有限公司 | Medical conductive gel and preparation method thereof |
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| CN102479566A (en) * | 2010-11-22 | 2012-05-30 | 侯小兵 | Electroencephalogram conductive adhesive |
| CN103550795B (en) * | 2013-10-24 | 2015-04-22 | 苏州格林泰克科技有限公司 | Electrode abrading and conducting adhesive and preparation method thereof |
| CN105153359B (en) * | 2015-08-25 | 2018-02-23 | 康柏医疗器械（惠州）有限公司 | A kind of conductive hydrogel and conductive hydrogel coiled material and preparation method thereof |
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Effective date of registration: 20220322 Address after: 300450 room 1-308, building 1, No. 1, Haitai Huake Third Road, Huayuan Industrial Zone, high tech Zone, Binhai New Area, Tianjin Patentee after: TIANJIN YINGHAO TECHNOLOGY Co.,Ltd. Address before: 530031 No. 21 Jinkai Road, Nanning Economic and Technological Development Zone, Guangxi Zhuang Autonomous Region Patentee before: Lu Lujiao |