CN107170508B - A kind of preparation method of conductive silver paste - Google Patents
A kind of preparation method of conductive silver paste Download PDFInfo
- Publication number
- CN107170508B CN107170508B CN201710337153.9A CN201710337153A CN107170508B CN 107170508 B CN107170508 B CN 107170508B CN 201710337153 A CN201710337153 A CN 201710337153A CN 107170508 B CN107170508 B CN 107170508B
- Authority
- CN
- China
- Prior art keywords
- fermentation
- silver
- solution
- carbon black
- conductive silver
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- H01B1/24—Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon
-
- 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
-
- 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
-
- 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
- H01B13/0026—Apparatus for manufacturing conducting or semi-conducting layers, e.g. deposition of metal
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Conductive Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of preparation methods of conductive silver paste, belong to electrocondution slurry preparation technical field.The present invention is using the acetylene carbon black with satisfactory electrical conductivity as carrier, first through surfactant-modified, it is impregnated again with dopamine solution, autohemagglutination cross-linking reaction occurs under the action of dissolved oxygen and is attached to carbon blacksurface for dopamine, the silver ion in silver ammino solution is set to be sequestered in carbon blacksurface using the initial stage chelating ability of dopamine, again using glucose as reducing agent, restore silver ammino solution, in the nano-silver layer of carbon blacksurface depositing homogeneous, it is modified under the action of microorganism with rosin again, increase its surface natural resin amounts of particles, to improve the compatibility between filler and resin matrix, final conductive silver paste resistivity obtained is low, it has good conductive property, and present invention acetylene carbon black is instead of a part of silver powder, cost is saved, it has broad application prospects.
Description
Technical field
The invention discloses a kind of preparation methods of conductive silver paste, belong to electrocondution slurry preparation technical field.
Background technique
Electronic conduction slurry is usually by organic carrier, with the eutectic glass of cementation under functional powder and high temperature
Glass powder composition is set electron, chemical industry, metallurgy in one and has the product of very high technical additional value, electronics and information industry into
While entering the high speed development stage, electronic conduction slurry is also allowed to have tremendous development.As electronic component is to micromation, flexible
Change development, traditional micron size conductive slurry has been unable to meet the requirement of low-temperature sintering and multilayer wiring.
In existing electric slurry field, silver system slurry has conductivity height, performance stable, big with substrate bond strength
The features such as, it has been widely used in the production of the electronic components such as integrated circuit, multi-chip module, thin film switch.It is conductive at present
Silver paste is mixed by machinery by a certain percentage with macromolecule resin, organic solvent, additive etc. mostly using nano-silver powder as conductive filler
It closes rolling to be prepared, since nano-silver powder is at high price, causes production cost higher, and nano-silver powder and resin-in-pulp base
Poor compatibility between body causes finished product resistivity big, influences its electric conductivity.Therefore, seek it is a kind of it is at low cost, electric conductivity is excellent
Good conductive silver paste has become urgent problem to be solved in the industry.
Summary of the invention
Present invention mainly solves the technical issues of: for current conductive silver paste mostly using nano-silver powder as conductive filler, exist
The high problem of preparation cost, and the poor compatibility between nano-silver powder and resin-in-pulp matrix, cause finished product resistivity big, shadow
The defect for ringing its electric conductivity provides a kind of preparation method of conductive silver medal.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that:
(1) 400~500g acetylene carbon black and 3~5g isomerous tridecanol polyoxyethylene ether 1~2h of mixed grinding are weighed, then will
Mixture after grinding impregnates 3~5h with dopamine solution, filters after immersion, and isolated filter residue is modified acetylene charcoal
It is black, it is spare；
(2) beaker is successively washed 3~5 times with sodium hydroxide solution and deionized water respectively, then measures 2~3L silver nitrate
Solution is fitted into the beaker after washing, and beaker is placed on shaking table and is vibrated, and during oscillation, is added dropwise dropwise into beaker
Ammonium hydroxide stops that ammonium hydroxide is added dropwise, obtains autogamy silver ammino solution until the precipitating initially generated just dissolves；
(3) the spare modification acetylene carbon black of step (1) is added in above-mentioned autogamy silver ammino solution, ultrasonic disperse 15~
20min obtains mixed dispersion liquid, and in the water-bath of 40~50 DEG C of immigration, it is molten that glucose is added dropwise into mixed dispersion liquid immediately
Liquid is separated by filtration to obtain filter cake, dry after gained filter cake is rinsed 3~5min with deionized water after standing 20~30min of reaction,
Conductive silver powder is obtained, it is spare；
(4) pine tree is selected, the sunny slope with cutter in trunk opens lateral sulcus using descent method, and lateral sulcus uses triangular scraper after holding successfully
Flute is opened again in lateral sulcus lower end edge landing ground vertical direction, then collects rosin in flute lower end；
(5) the spare conductive silver powder of step (3) and above-mentioned rosin are pressed and is fitted into conduct in fermentor after waiting mass ratioes to mix
Fermentation substrate, then Pseudomonas aeruginosa bacteria suspension is added into fermentor, it is sealed by fermentation, is separated by filtration to obtain fermentation filter after fermentation
Slag, will fermentation filter residue with after 20~30min of ultraviolet lamp radiation sterilization again with the dry 1~2h of vacuum drier to get conductive filler；
(6) according to parts by weight, 60~70 parts of above-mentioned conductive fillers, 10~15 parts of E-35(637 are weighed) bisphenol type epoxy
Resin, 15~20 parts of tetrahydrofurans, 1~2 part of ethylenediamine and 3~5 parts of polyethylene glycol are sequentially loaded into colloid mill and are stirred 20
Discharging is after~30min to get conductive silver paste.
The mass concentration of the dopamine solution is 2~4g/L.
The mass fraction of the sodium hydroxide solution is 30%, and the mass fraction of silver nitrate solution is 2%, the quality of ammonium hydroxide
Score is 5~6%.
The mass ratio of modification acetylene carbon black described in step (3) and autogamy silver ammino solution is 1:10, supersonic frequency 25
~30KHz, the mass fraction of glucose solution are 10%, and the dripping quantity of glucose solution is equal with mixed dispersion liquid volume.
For the lateral sulcus trench digging height away between 2.0~2.5m of ground, lateral sulcus length is 25~35cm, lateral sulcus and level
The angle in face is in 45 °, and flute length is 5~10cm.
The concentration of Pseudomonas aeruginosa bacteria suspension described in step (5) is 105Cfu/mL, the additional amount of Pseudomonas aeruginosa bacteria suspension
It is the 15% of fermentation substrate quality, fermentation temperature is 30~40 DEG C, and fermentation time is 5~7 days.
Fermentation substrate can also be added while Pseudomonas aeruginosa bacteria suspension is added described in step (5) into fermentor again
The Lavender of quality 5%.
The beneficial effects of the present invention are:
(1) present invention first through surfactant-modified, then uses DOPA using the acetylene carbon black with satisfactory electrical conductivity as carrier
Amine aqueous solution impregnates, and is attached to carbon black table using autohemagglutination cross-linking reaction formation strength occurs under the action of dopamine in water dissolved oxygen
The poly-dopamine composite film in face chelates the silver ion in silver ammino solution using the initial stage chelating ability of dopamine composite membrane layer
In carbon blacksurface, then using glucose as reducing agent, silver ammino solution is restored in the nano-silver layer of carbon blacksurface depositing homogeneous and uses second
Kernel of the alkynes carbon black as conductive silver paste filler, to reduce the dosage of nano silver, has been saved and has been prepared into instead of part nano silver
This；
(2) present invention is again modified conductive silver powder obtained under the action of microorganism with rosin, increases its surface
Natural resin amounts of particles is finally reached raising using having the characteristics that good compatibility between natural resin and resin matrix
The purpose of compatibility between conductive silver paste filler and resin matrix, final conductive silver paste resistivity obtained is low, has good
Electric conductivity.
Specific embodiment
Colloid mill is put into after weighing 400~500g acetylene carbon black and the mixing of 3~5g isomerous tridecanol polyoxyethylene ether first
1~2h of middle grinding, then by the acetylene carbon black after grinding be transferred to 1~2L mass concentration be 2~4g/L dopamine solution in impregnate 3~
5h is filtered after immersion, and isolated filter residue is modified acetylene carbon black, is then successively with mass fraction by 5L beaker
30% sodium hydroxide solution and deionized water are washed 3~5 times respectively, and measuring 2~3L mass fraction is that the loading of 2% silver nitrate solution is washed
In beaker after washing, then beaker is placed on shaking table, shaken under conditions of temperature is 50~60 DEG C, revolving speed is 100r/min
It swings, during oscillation, it is 5~6% ammonium hydroxide that mass fraction is added dropwise dropwise into beaker, until the precipitating initially generated is rigid
Until good dissolving, stop that ammonium hydroxide is added dropwise, obtains autogamy silver ammino solution, then be in mass ratio added to modified acetylene carbon black for 1:10
In autogamy silver ammino solution, 15~20min is dispersed with the frequency ultrasound of 25~30KHz with ultrasonic disperse instrument, obtains mixed dispersion liquid,
It measures 800~900mL mixed dispersion liquid to be fitted into 5L beaker and the water-bath of 40~50 DEG C of immigration, immediately into mixed dispersion liquid
It is 10% glucose solution that the isometric mass fraction of mixed dispersion liquid, which is added dropwise, is separated by filtration to obtain after standing 20~30min of reaction
Filter cake, then baking oven is moved into after filter cake is rinsed 3~5min with deionized water, dry 1~2h, obtains conduction at 105~110 DEG C
Silver powder is selecting pine tree of the trunk diameter between 35~45cm in pine forests, the sunny slope with cutter in trunk uses decline
Method opens lateral sulcus, and trench digging height is away between 2.0~2.5m of ground, and lateral sulcus length is 25~35cm, and lateral sulcus is scraped after holding successfully with triangle
Knife opens flute in lateral sulcus lower end edge landing ground vertical direction again, and flute length is 5~10cm, then adds one in flute lower end
2L glass, collects 200~300g rosin, then by conductive silver powder and rosin mixed by equal mass ratioes after be fitted into fermentor and make
For fermentation substrate, then it is 10 that the concentration of fermentation substrate quality 15%, which is added, into fermentor5Cfu/mL Pseudomonas aeruginosa bacteria suspension and hair
The Lavender of ferment substrate quality 5%, using essential oil degrade improve surface ester group quantity, further increase product and
The compatibility of resin matrix, after mixing evenly sealed fermenter, heat-preservation fermentation 5~7 days at 30~40 DEG C, after fermentation mistake
Filter isolated fermentation filter residue, will fermentation filter residue with after 20~30min of ultraviolet lamp radiation sterilization again with vacuum drier dry 1~
2h is to get conductive filler, finally according to parts by weight, weighs 60~70 parts of conductive fillers, 10~15 parts of E-35(637) bisphenol-A
Type epoxy resin, 15~20 parts of tetrahydrofurans, 1~2 part of ethylenediamine and 3~5 parts of polyethylene glycol are sequentially loaded into colloid mill and stir
Discharging is after mixing 20~30min to get conductive silver paste.
Example 1
It is put into colloid mill after weighing 400g acetylene carbon black and the mixing of 3g isomerous tridecanol polyoxyethylene ether first and grinds 1h,
It is to impregnate 3h in 2g/L dopamine solution that the acetylene carbon black after grinding, which is transferred to 1L mass concentration, again, is filtered after immersion, point
Be modified acetylene carbon black from filter residue is obtained, then by 5L beaker successively with mass fraction be 30% sodium hydroxide solution and go from
Sub- water washs 3 times respectively, measures in the beaker that 2L mass fraction is fitted into after washing for 2% silver nitrate solution, then beaker is placed on and is shaken
On bed, vibrated under conditions of temperature is 50 DEG C, revolving speed is 100r/min, during oscillation, dropwise into beaker
Dropwise addition mass fraction is 5% ammonium hydroxide, until the precipitating initially generated just dissolves, stops that ammonium hydroxide is added dropwise, obtains autogamy silver
Ammonia solution, then modified acetylene carbon black is added in autogamy silver ammino solution for 1:10 in mass ratio, with ultrasonic disperse instrument with 25KHz
Frequency ultrasound disperse 15min, obtain mixed dispersion liquid, measure 800mL mixed dispersion liquid and be packed into 5L beaker and simultaneously move into 40 DEG C
In water-bath, it is 10% glucose solution that the isometric mass fraction of mixed dispersion liquid is added dropwise into mixed dispersion liquid immediately, is stood
It is separated by filtration to obtain filter cake after reaction 20min, then moves into baking oven after filter cake is rinsed 3min with deionized water, done at 105 DEG C
Dry 1h, obtains conductive silver powder, and pine tree of the trunk diameter between 35cm is being selected in pine forests, with cutter trunk sunny slope
Lateral sulcus is opened using descent method, trench digging height is away between the 2.0m of ground, and lateral sulcus length is 25cm, and lateral sulcus uses triangular scraper after holding successfully
Flute is opened again in lateral sulcus lower end edge landing ground vertical direction, and flute length is 5cm, then adds a 2L glass in flute lower end
Cup, collects 200g rosin, then by conductive silver powder and rosin press to be fitted into fermentor after equal mass ratioes mix and be used as fermentation substrate,
The concentration that fermentation substrate quality 15% is added into fermentor again is 105Cfu/mL Pseudomonas aeruginosa bacteria suspension, seals after mixing evenly
Fermentor, heat-preservation fermentation 5 days at 30 DEG C are separated by filtration to obtain fermentation filter residue after fermentation, by the filter residue ultraviolet lamp that ferments
Again with the dry 1h of vacuum drier to get conductive filler after radiation sterilization 20min, finally according to parts by weight, weighs 60 parts and lead
Electric filler, 10 parts of E-35(637) bisphenol A type epoxy resin, 15 parts of tetrahydrofurans, 1 part of ethylenediamine and 3 parts of polyethylene glycol successively fill
Discharging is after entering to be stirred 20min in colloid mill to get conductive silver paste.
Example 2
It is put into colloid mill after weighing 45g acetylene carbon black and the mixing of 4 isomerous tridecanol polyoxyethylene ethers first and grinds 1h, then
It is to impregnate 4 in 3g/L dopamine solution that acetylene carbon black after grinding, which is transferred to 1L mass concentration, filters, separates after immersion
It is modified acetylene carbon black to filter residue, it is 30% sodium hydroxide solution and deionized water that 5L beaker, which is successively then used mass fraction,
4 are washed respectively, are measured in the beaker that 2L mass fraction is fitted into after washing for 2% silver nitrate solution, then beaker is placed on shaking table,
It is vibrated under conditions of temperature is 55, revolving speed is 100r/min, during oscillation, quality is added dropwise dropwise into beaker
Score is 5% ammonium hydroxide, until the precipitating initially generated just dissolves, stops that ammonium hydroxide is added dropwise, obtains autogamy silver ammino solution,
Modified acetylene carbon black is added in autogamy silver ammino solution for 1:10 in mass ratio again, it is super with the frequency of 28Hz with ultrasonic disperse instrument
Sound disperses 18in, obtains mixed dispersion liquid, measures 850mL mixed dispersion liquid and is fitted into 5L beaker and the water-bath of 45 DEG C of immigration,
It is 10% glucose solution that the isometric mass fraction of mixed dispersion liquid is added dropwise into mixed dispersion liquid immediately, stands reaction 25min
After be separated by filtration to obtain filter cake, then move into baking oven after filter cake is rinsed 4min with deionized water, dry 1h, obtains at 108 DEG C
Conductive silver powder is selecting pine tree of the trunk diameter between 40cm in pine forests, the sunny slope with cutter in trunk uses decline
Method opens lateral sulcus, and trench digging height is away between the 2.3m of ground, and lateral sulcus length is 30cm, and lateral sulcus uses triangular scraper under lateral sulcus after holding successfully
Flute is opened along landing ground vertical direction in end again, and flute length is 8cm, then adds a 2L glass in flute lower end, collects
250g rosin, then by conductive silver powder and rosin press to be fitted into fermentor after equal mass ratioes mix and be used as fermentation substrate, then to hair
The concentration that fermentation substrate quality 15% is added in fermentation tank is 105Cfu/mL Pseudomonas aeruginosa bacteria suspension, is sealed by fermentation after mixing evenly
Tank, heat-preservation fermentation 6 days at 35 DEG C are separated by filtration to obtain fermentation filter residue after fermentation, by the ultraviolet light irradiation of filter residue that ferments
Again with the dry 1h of vacuum drier to get conductive filler after sterilizing 25min, finally according to parts by weight, weighs 65 parts of conductions and fill out
Material, 13 parts of E-35(637) bisphenol A type epoxy resin, 18 parts of tetrahydrofurans, 12 parts of ethylenediamines and 4 parts of polyethylene glycol are sequentially loaded into
Discharging is after being stirred 25min in colloid mill to get conductive silver paste.
Example 3
It is put into colloid mill after weighing 500g acetylene carbon black and the mixing of 5g isomerous tridecanol polyoxyethylene ether first and grinds 2h,
It is to impregnate 5h in 4g/L dopamine solution that the acetylene carbon black after grinding, which is transferred to 2L mass concentration, again, is filtered after immersion, point
Be modified acetylene carbon black from filter residue is obtained, then by 5L beaker successively with mass fraction be 30% sodium hydroxide solution and go from
Sub- water washs 5 times respectively, measures in the beaker that 3L mass fraction is fitted into after washing for 2% silver nitrate solution, then beaker is placed on and is shaken
On bed, vibrated under conditions of temperature is 60 DEG C, revolving speed is 100r/min, during oscillation, dropwise into beaker
Dropwise addition mass fraction is 6% ammonium hydroxide, until the precipitating initially generated just dissolves, stops that ammonium hydroxide is added dropwise, obtains autogamy silver
Ammonia solution, then modified acetylene carbon black is added in autogamy silver ammino solution for 1:10 in mass ratio, with ultrasonic disperse instrument with 30KHz
Frequency ultrasound disperse 20min, obtain mixed dispersion liquid, measure 900mL mixed dispersion liquid and be packed into 5L beaker and simultaneously move into 50 DEG C
In water-bath, it is 10% glucose solution that the isometric mass fraction of mixed dispersion liquid is added dropwise into mixed dispersion liquid immediately, is stood
It is separated by filtration to obtain filter cake after reaction 30min, then moves into baking oven after filter cake is rinsed 5min with deionized water, done at 110 DEG C
Dry 2h, obtains conductive silver powder, and pine tree of the trunk diameter between 45cm is being selected in pine forests, with cutter trunk sunny slope
Lateral sulcus is opened using descent method, trench digging height is away between the 2.5m of ground, and lateral sulcus length is 35cm, and lateral sulcus uses triangular scraper after holding successfully
Flute is opened again in lateral sulcus lower end edge landing ground vertical direction, and flute length is 10cm, then adds a 2L glass in flute lower end
Glass cup, collects 300g rosin, then by conductive silver powder and rosin press after equal mass ratioes mix and be fitted into fermentor as bottom of fermenting
Object, then it is 10 that the concentration of fermentation substrate quality 15%, which is added, into fermentor5Cfu/mL Pseudomonas aeruginosa bacteria suspension and fermentation substrate matter
5% Lavender is measured, after mixing evenly sealed fermenter, heat-preservation fermentation 7 days, are separated by filtration after fermentation at 40 DEG C
Obtain fermentation filter residue, will fermentation filter residue with being filled out again with the dry 2h of vacuum drier to get conduction after ultraviolet lamp radiation sterilization 30min
Material, finally according to parts by weight, weighs 70 parts of conductive fillers, 15 parts of E-35(637) bisphenol A type epoxy resin, 20 parts of tetrahydro furans
It mutters, 2 parts of ethylenediamines and 5 parts of polyethylene glycol are sequentially loaded into colloid mill after being stirred 230min and discharge to get conductive silver paste.
Conductive silver paste made from example 1~3 and commercially available nano-silver powder base conductive silver paste are tested, testing result is such as
Following table:
| Detection project | Nano-silver powder base conductive silver paste | Example 1 | Example 2 | Example 3 |
| Body (Ω cm) | 4.95×10-5 | 2.8×10-5 | 3.1×10-5 | 3.2×10-5 |
| Cost (jin) | 3500~5000 | 2300 | 2100 | 2000 |
| Adhere to (grade) | 1~2 | 1 | 1 | 0 |
| Hardness (H) | 2 | 3 | 3 | 4 |
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (2)
1. a kind of preparation method of conductive silver paste, it is characterised in that specific preparation step are as follows:
(1) 400~500g acetylene carbon black and 3~5g isomerous tridecanol polyoxyethylene ether 1~2h of mixed grinding are weighed, then will grinding
The dopamine solution that mixture mass concentration afterwards is 2~4g/L impregnates 3~5h, filters after immersion, isolated filter
Slag is modified acetylene carbon black, spare；
(2) sodium hydroxide solution and deionized water for being successively 30% with mass fraction by beaker wash 3~5 times respectively, then measure
The silver nitrate solution that 2~3L mass fraction is 2% is fitted into the beaker after washing, and beaker is placed on shaking table and is vibrated, and is being vibrated
During, the ammonium hydroxide that mass fraction is 5~6% is added dropwise dropwise into beaker, until the precipitating initially generated is just dissolved as
Only, stop that ammonium hydroxide is added dropwise, obtain autogamy silver ammino solution；
(3) the spare modification acetylene carbon black of step (1) is added in above-mentioned autogamy silver ammino solution, the modification acetylene carbon black
Mass ratio with autogamy silver ammino solution is 1:10；It is 25~30KHz ultrasonic disperse, 15~20min in supersonic frequency, is mixed
Dispersion liquid, and in the water-bath of 40~50 DEG C of immigration, it is molten that the glucose that mass fraction is 10% is added dropwise into mixed dispersion liquid immediately
The dripping quantity of liquid, glucose solution is equal with mixed dispersion liquid volume, stands to be separated by filtration after reacting 20~30min and be filtered
Cake dries after gained filter cake is rinsed 3~5min with deionized water, obtains conductive silver powder, spare；
(4) pine tree is selected, the sunny slope with cutter in trunk opens lateral sulcus using descent method, and lateral sulcus uses triangular scraper in side after holding successfully
Ditch lower end edge landing ground vertical direction opens flute again, then collects rosin in flute lower end；
(5) the spare conductive silver powder of step (3) and above-mentioned rosin are pressed and is fitted into fermentor after waiting mass ratioes to mix as fermentation
Substrate, then it is 10 that concentration, which is added, into fermentor5The Pseudomonas aeruginosa bacteria suspension of cfu/mL, the additional amount of Pseudomonas aeruginosa bacteria suspension are
Smoking for fermentation substrate quality 5% is added in the 15% of fermentation substrate quality while Pseudomonas aeruginosa bacteria suspension is added into fermentor
Clothing grass essential oil is sealed by fermentation, and fermentation temperature is 30~40 DEG C, and fermentation time is 5~7 days, is separated by filtration to obtain after fermentation
Fermentation filter residue will be led with the dry 1~2h of vacuum drier again after fermentation 20~30min of filter residue ultraviolet lamp radiation sterilization
Electric filler；
(6) according to parts by weight, 60~70 parts of above-mentioned conductive fillers, 10~15 parts of E-35(637 are weighed) bisphenol type epoxy tree
Rouge, 15~20 parts of tetrahydrofurans, 1~2 part of ethylenediamine and 3~5 parts of polyethylene glycol are sequentially loaded into colloid mill and are stirred 20~
Discharging is after 30min to get conductive silver paste.
2. a kind of preparation method of conductive silver paste according to claim 1, it is characterised in that: the lateral sulcus is ditched highly
Away between 2.0~2.5m of ground, lateral sulcus length is 25~35cm, and the angle of lateral sulcus and horizontal plane is in 45 °, and flute length is 5
~10cm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811262692.1A CN109215842B (en) | 2017-05-14 | 2017-05-14 | Conductive silver paste with lower resistivity |
| CN201710337153.9A CN107170508B (en) | 2017-05-14 | 2017-05-14 | A kind of preparation method of conductive silver paste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710337153.9A CN107170508B (en) | 2017-05-14 | 2017-05-14 | A kind of preparation method of conductive silver paste |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811262692.1A Division CN109215842B (en) | 2017-05-14 | 2017-05-14 | Conductive silver paste with lower resistivity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107170508A CN107170508A (en) | 2017-09-15 |
| CN107170508B true CN107170508B (en) | 2019-01-18 |
Family
ID=59815790
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811262692.1A Expired - Fee Related CN109215842B (en) | 2017-05-14 | 2017-05-14 | Conductive silver paste with lower resistivity |
| CN201710337153.9A Active CN107170508B (en) | 2017-05-14 | 2017-05-14 | A kind of preparation method of conductive silver paste |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811262692.1A Expired - Fee Related CN109215842B (en) | 2017-05-14 | 2017-05-14 | Conductive silver paste with lower resistivity |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN109215842B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107799246B (en) * | 2017-09-25 | 2019-08-16 | 江苏时恒电子科技有限公司 | A kind of thermistor Graphene electrodes material and preparation method thereof |
| CN107910132B (en) * | 2017-11-21 | 2019-11-08 | 诺邦泰新材料(深圳)有限公司 | A kind of preparation method of high dispersive type electrocondution slurry |
| CN108735338A (en) * | 2018-05-18 | 2018-11-02 | 郦璋 | A kind of preparation method of epoxy resin silver powder composite conducting silver paste |
| CN109370495A (en) * | 2018-10-24 | 2019-02-22 | 嘉兴市海德姆智能电气有限公司 | A kind of preparation method of modified silver powder composite conducting glue |
| CN109692971B (en) * | 2018-12-10 | 2022-02-08 | 太原氦舶新材料有限责任公司 | Nano silver powder, preparation thereof and application thereof in low-temperature curing conductive silver paste |
| CN111554430A (en) * | 2020-05-19 | 2020-08-18 | 东莞市硕美电子材料科技有限公司 | Novel composite conductive coating paste composition and preparation method thereof |
| CN114005573B (en) * | 2021-11-11 | 2023-08-11 | 中国有色桂林矿产地质研究院有限公司 | Preparation method of high-temperature electronic paste |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101977509A (en) * | 2008-01-04 | 2011-02-16 | 詹森药业有限公司 | Silver nanoparticles with specific surface area and a method for producing them |
| CN104650419A (en) * | 2013-11-19 | 2015-05-27 | 中国石油天然气股份有限公司 | Preparation method of modified white carbon black/solution polymerized rubber composite material |
| CN106317880A (en) * | 2016-08-18 | 2017-01-11 | 安徽省和翰光电科技有限公司 | High-durability high-heat-conductivity silicone rubber thermal interface material for LED and preparation method |
| CN106497472A (en) * | 2016-10-07 | 2017-03-15 | 常州市鼎日环保科技有限公司 | A kind of preparation method of lamp package conductive adhesive |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101650982B (en) * | 2009-08-18 | 2011-01-26 | 深圳市中金岭南科技有限公司 | Conductive silver paste with low halogen content |
| CN102174241B (en) * | 2010-12-31 | 2015-04-22 | 东莞市阿比亚能源科技有限公司 | Silver paste for photovoltaic assembly |
| EP2696352B1 (en) * | 2011-04-07 | 2015-12-09 | Lg Chem, Ltd. | Silver paste composition for forming an electrode, and method for preparing same |
| CN102254586B (en) * | 2011-05-05 | 2012-06-06 | 苏州喜仁新材料科技有限公司 | Low-temperature cured conductive silver paste and preparation method and use thereof |
| CN106532059A (en) * | 2016-12-28 | 2017-03-22 | 深圳市德方纳米科技股份有限公司 | Preparation methods of conductive carbon slurry and positive electrode material plate |
-
2017
- 2017-05-14 CN CN201811262692.1A patent/CN109215842B/en not_active Expired - Fee Related
- 2017-05-14 CN CN201710337153.9A patent/CN107170508B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101977509A (en) * | 2008-01-04 | 2011-02-16 | 詹森药业有限公司 | Silver nanoparticles with specific surface area and a method for producing them |
| CN104650419A (en) * | 2013-11-19 | 2015-05-27 | 中国石油天然气股份有限公司 | Preparation method of modified white carbon black/solution polymerized rubber composite material |
| CN106317880A (en) * | 2016-08-18 | 2017-01-11 | 安徽省和翰光电科技有限公司 | High-durability high-heat-conductivity silicone rubber thermal interface material for LED and preparation method |
| CN106497472A (en) * | 2016-10-07 | 2017-03-15 | 常州市鼎日环保科技有限公司 | A kind of preparation method of lamp package conductive adhesive |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109215842A (en) | 2019-01-15 |
| CN109215842B (en) | 2021-10-26 |
| CN107170508A (en) | 2017-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107170508B (en) | A kind of preparation method of conductive silver paste | |
| CN104464887B (en) | A kind of nano-silver thread conductive silver paste and preparation method thereof | |
| CN101364455B (en) | Base metal copper electrode paste and preparation of obtained capacitor | |
| CN109659564A (en) | A kind of negative electrode tab and preparation method thereof reducing lithium ion battery impedance | |
| CN108063258A (en) | A kind of preparation method for the binding agent for improving lithium battery silicon electrode cyclical stability | |
| CN102311714A (en) | High thermal and electric conducting adhesive filled with nanometer silver and preparation method thereof | |
| CN115028473B (en) | Method for preparing porous ceramic coated with metal coating and aerosol generating device | |
| CN103156784B (en) | Chitosan-fullerol compound, preparation method thereof compound and moisture-preserving antioxidant | |
| CN108140447A (en) | Conductive paste | |
| CN109401442A (en) | A kind of silver-plated electrically conductive ink of UV curing nano and preparation method thereof | |
| CN109326514A (en) | A kind of selective emitter solar battery phosphorus doping slurry and preparation method thereof | |
| CN110387146A (en) | A kind of rubber film isolating agent | |
| CN109959684B (en) | Preparation of double-identification type chlorpyrifos sensor, method for detecting chlorpyrifos residues in vegetables and detection device | |
| CN111748191A (en) | Two-dimensional graphene composite material with copper nanoparticles loaded on surface and preparation method and application thereof | |
| CN104741605A (en) | Nano-silver wrapping type silicon dioxide nano-micron ball conductive powder and production method and application thereof | |
| CN107910132A (en) | A kind of preparation method of high dispersive type electrocondution slurry | |
| CN107840966B (en) | Pentaerythritol triacrylate-dopamine-pyrrole polymer and application thereof | |
| CN107840955B (en) | Conductive adhesive and preparation method thereof | |
| CN110372921A (en) | A kind of preparation method of rubber removing graphene composite conductive rubber | |
| CN112537058B (en) | Preparation method of triboelectrification film based on composite nano particle doping | |
| CN102800484B (en) | A kind of method making anode pellet of niobium capacitor | |
| CN102795865A (en) | Environment-friendly bonding agent for ceramic sheet tape casting and preparation method of bonding agent | |
| CN115678029A (en) | Z-67/MXene nano composite material, preparation method and application | |
| CN115312230A (en) | Conductive silver paste, and preparation method and application thereof | |
| CN111422929B (en) | Preparation method and application of rod-shaped nickel disulfide-molybdenum disulfide nano composite |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20181129 Address after: 243000 2, 1669 north section of Huo Li Shan Road, Ma'anshan high tech Zone, Anhui Applicant after: Ma'anshan Taibo Chemical Technology Co Ltd Address before: 213105 No. 10 Wangcai Road, Luoxi Town, Xinbei District, Changzhou City, Jiangsu Province Applicant before: Changzhou Aupu Tektronix Photoelectric Technology Co., Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220530 Address after: 415000 No. 9, Songlin Road, Changde economic and Technological Development Zone, Changde City, Hunan Province (south side of the second floor of building A8, surface treatment Park) Patentee after: Hunan Zongcheng New Material Technology Co.,Ltd. Address before: 243000 2, 1669 north section of Huo Li Shan Road, Ma'anshan high tech Zone, Anhui Patentee before: MAANSHAN TAIBO CHEMICAL TECHNOLOGY Co.,Ltd. |