CN105436515B - A kind of preparation method of ultrafine electricity conductive circuit Nano silver solution - Google Patents
A kind of preparation method of ultrafine electricity conductive circuit Nano silver solution Download PDFInfo
- Publication number
- CN105436515B CN105436515B CN201510873988.7A CN201510873988A CN105436515B CN 105436515 B CN105436515 B CN 105436515B CN 201510873988 A CN201510873988 A CN 201510873988A CN 105436515 B CN105436515 B CN 105436515B
- Authority
- CN
- China
- Prior art keywords
- solution
- water
- silver
- preparation
- dispersion
- 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
Abstract
The present invention relates to a kind of ultrafine electricity conductive circuit Nano silver solution, it is comprising following each component and its mass percentage content：Silver nitrate solution, tallow amine solution, triethanolamine solution, formalin and water soluble acrylic resin's dispersion；Its preparation method comprises the following steps：Silver nitrate solution first to constant temperature at 5 DEG C is stirred, while adding tallow amine；Triethanolamine is added as dilution, the pH value of whole solution is reached 7.2 7.9, formalin is added, the redox reaction to silver is carried out so that solution is translucent shape；Finally, water-based acrylic resin dispersion is added, until the transparent liquid of solution, now solution is finished product.
Description
Technical field
The present invention is a kind of Nano silver solution for being used to print ultrafine electricity conductive circuit, is widely used in electronic product, for example
It is alternative original to use silver powder system on computor-keyboard, thin film switch, touch-screen, solar cell, the electronic component such as capacitor and inductor
Into the conducting wire of silver paste silk-screen manufacture craft, the consumption that can save silver reaches suitable electrical property, while reducing cost
Quality standard does not drop.
Background technology
Very widely used today electric slurry is all made of using silver powder and organic solvent and resin bonding material.Silver powder conduct
Conducting medium, has larger consumption just to reach good electric conductivity, because conductivity principle is closely connected by silver powder
Electric action is produced together, silver content is small, cannot reach required conductive effectiveness, therefore cost will be higher, thus make
With electric conductivity more preferably, more inexpensive products substitution silver powder just turns into the R＆D direction of industry.
The content of the invention
The purpose of the present invention is can be directly reduced to elemental silver at a lower temperature using Nano silver solution, forms circuit and leads
Superior electrical property, usage amount is low, meets electronics industry demand for development.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of ultrafine electricity conductive circuit Nano silver solution, it is characterized in that, contain comprising following each component and its mass percent
Amount is：
Silver nitrate solution 20-70%；
Tallow amine solution 1-10%；
Triethanolamine solution 1-10%；
Formalin 10-30%；
Water soluble acrylic resin's dispersion 5-25%.
Another object of the present invention is to provide a kind of method for preparing ultrafine electricity conductive circuit Nano silver solution, it is characterized in that,
Comprise the following steps：Silver nitrate solution first to constant temperature at 5 DEG C is stirred, while adding tallow amine；Add three
Monoethanolamine makes the pH value of whole solution reach 7.2-7.9 as dilution, adds formalin, carries out the oxidation to silver also
Original reaction so that solution is translucent shape；Finally, water-based acrylic resin dispersion is added, until the transparent liquid of solution, this
When solution be finished product.
The preparation method of the silver nitrate solution is：Silver nitrate is used with 10% ratio and the quality for removing water ion water 90%
After part ratio mixing, it is placed on the container of 5 DEG C of constant temperature or refrigeration is kept under 5 DEG C of solution temperature, use dasher stirring turn
Speed is 30 turns/min, and silver nitrate solution is made.
The preparation method of the tallow amine solution is：Using single product of the active ingredient of tallow amine 100%, by matter
The tallow amine of amount percentage 5% is mixed with 95% deionization hot water, is likewise cooled to 5 DEG C, and tallow amine solution is made.
The preparation method of the triethanolamine solution is：Single product of the active ingredient of triethanolamine 99%, take 40% mass parts
Triethanolamine mixed with 60% deionized water, be placed under 5 DEG C of low temperature environment keep 2 hours after, be made triethanolamine solution.
The preparation method of the formalin is：After 10% formaldehyde is mixed with 90% deionized water by mass percentage, put
In under 5 DEG C of low temperature, formalin is made.
The preparation method of water soluble acrylic resin's dispersion is：Using the water-soluble acrylic of solids content 35%
Resin list product, then mixed by the single product of 1 part of water soluble acrylic resin with the mass parts of 4 parts of deionized waters, obtain acrylic resin
Dispersion, acrylic dispersion and the mixing of 80% deionized water according still further to mass percent 20% are dispersed into solid and contained
The liquid for 1.4% is measured, surfactant is added, protected as matrix, acrylic dispersion is dispersed in the aqueous solution
In, water soluble acrylic resin's dispersion is made.
The beneficial effects of the invention are as follows：
A kind of ultrafine electricity conductive circuit Nano silver solution and preparation method thereof of the present invention, be using Nano silver solution compared with
Elemental silver can be directly reduced under low temperature, formation circuit electric conductivity is superior, and usage amount is low, meeting electronics industry development will
Ask.
Embodiment
With reference to embodiment, the present invention is further described.
A kind of ultrafine electricity conductive circuit Nano silver solution, it is characterized in that, contain comprising following each component and its mass percent
Amount is：
Silver nitrate solution 55%；
Tallow amine solution 5.5%；
Triethanolamine solution 9.5%；
Formalin 25%；
Water soluble acrylic resin's dispersion 5%.
Another object of the present invention is to provide a kind of method for preparing ultrafine electricity conductive circuit Nano silver solution, it is characterized in that,
Comprise the following steps：Silver nitrate solution first to constant temperature at 5 DEG C is stirred, while being slowly added to tallow amine, makes two
After kind liquid is well mixed；Triethanolamine is added as dilution, the pH value of whole solution is reached 7.5（Can just negative bias
Poor 0.2）, formalin is slow added into, the redox reaction to silver is carried out so that part silver is with nanometer-level silver particle shape
Into suspension so that solution is translucent shape Nano silver solution；Finally, water-based acrylic resin dispersion is slowly added to, until
The transparent liquid of solution, calculates the addition of now water-based acrylic resin dispersion, and now solution is finished product, you can for applying
Cloth is printed on electronic product and produces conducting wire, Nano Silver now by 130 DEG C, 30min baking temperature and when
Between after, it is already possible to sintering be in close silver wire, meticulously spread over and conducting wire formed on electronic product, water soluble acrylic acid tree
Then as binding agent, silver wire and ground are combined together for fat dispersion, and the electric conductivity of silver is not influenceed.
In the present invention, with tallow amine as dispersant in silver nitrate solution, and triethanolamine is used as reducing agent.
The preparation method of the silver nitrate solution is：Silver nitrate is used with 10% ratio and the quality for removing water ion water 90%
After part ratio mixing, it is placed on the container of 5 DEG C of constant temperature or refrigeration is kept under 5 DEG C of solution temperature, use dasher stirring turn
Speed is 30 turns/min, and silver nitrate solution is made.
The preparation method of the tallow amine solution is：Using single product of the active ingredient of tallow amine 100%（Dan Pin
For the existing goods of Akzo Nobel's surfactant company）, by mass percentage 5% tallow amine and 95% go from
Sub- hot water（80℃）Mixing, is likewise cooled to 5 DEG C, and tallow amine solution is made.
The preparation method of the triethanolamine solution is：Single product of the active ingredient of triethanolamine 99%, analyze pure product, take
Mixed, be placed in after being kept for 2 hours under 5 DEG C of low temperature environment with 60% deionized water with the triethanolamine of 40% mass parts, be made three
Ethanolamine solutions.
The preparation method of the formalin is：Using commercial goods, by mass percentage 10% formaldehyde and 90% go from
After sub- water mixing, it is placed under 5 DEG C of low temperature, formalin is made.
The preparation method of water soluble acrylic resin's dispersion is：Using the water-soluble acrylic of solids content 35%
Resin list product, are dispersed into solid and contain according to the acrylic dispersion of mass percent 20% and the mixing of 80% deionized water
Amount（That is acrylic resin content）For 1.4% liquid, 0.01% Du Pont's Zonyl fluorocarbon surfactants are added, base is used as
Body is protected, and is dispersed in the aqueous solution with enabling acrylic dispersion more fine uniform, and water soluble acrylic resin is made
Dispersion.
Nano silver grain can be wrapped in this low surface when silver-colored solution is added to after water soluble acrylic resin's dispersion
, can be with resin after exactly these resin microspheres for containing Nano silver grain are heated in the acrylic resin dispersion microsphere of tension force
With reference to sticking on electronic product, again can by Nano silver grain closely network together into conductive line.
The main points and effect principle of the present invention：
This invention core is that the particle diameter of the selection of water-based acrylic resin dispersion, wherein pH value and dispersion is big
Small is the key of selection, and the pH value of present invention selection water-based acrylic resin dispersion is 7.8 commercial goods, dispersible granule seed
Footpath is 0.2 micron.The operating method for adding technique is also crucial, end product is turned into transparency liquid, could illustrate now
Silver be liquid nano, can just form low-temperature sintering when being toasted for last heating, Nano silver grain is sintered into integral chain
The silver wire connect, electric conductivity is superior.
The present invention is to utilize sufficient dispersant（Tallow amine）And surfactant（Fluorocarbon surfactant）To nitre
Silver in sour silver solution forms the silver particles of nanometer particle size when being reduced into silver powder, select such a dispersant and surfactant to be
Necessary key technology.
Claims (6)
1. a kind of method for preparing ultrafine electricity conductive circuit Nano silver solution, it is characterized in that, include following each component and its quality
Degree is：
Silver nitrate solution 20-70%；
Tallow amine solution 1-10%；
Triethanolamine solution 1-10%；
Formalin 10-30%；
Water soluble acrylic resin's dispersion 5-25%；
Its preparation method comprises the following steps：Silver nitrate solution first to constant temperature at 5 DEG C is stirred, while adding tallow
Fat amine；Triethanolamine is added as dilution, the pH value of whole solution is reached 7.2-7.9, adds formalin, is carried out
To the redox reaction of silver so that solution is translucent shape；Finally, water-based acrylic resin dispersion is added, until solution
Transparent liquid, now solution is finished product.
2. the method for ultrafine electricity conductive circuit Nano silver solution is prepared according to claim 1, it is characterized in that, the silver nitrate
The preparation method of solution is：Silver nitrate is used after the mass parts ratio of water ion water 90% mixes, to be placed on 10% ratio with going
The container or refrigeration that 5 DEG C of constant temperature are kept under 5 DEG C of solution temperature, the use of dasher speed of agitator are 30 turns/min, are made
Silver nitrate solution.
3. the method for ultrafine electricity conductive circuit Nano silver solution is prepared according to claim 1, it is characterized in that, the tallow
The preparation method of fat amine aqueous solution is：Using the tallow of the single product, by mass percentage 5% of the active ingredient of tallow amine 100%
Fat amine is mixed with 95% deionization hot water, is likewise cooled to 5 DEG C, and tallow amine solution is made.
4. the method for ultrafine electricity conductive circuit Nano silver solution is prepared according to claim 1, it is characterized in that, three ethanol
The preparation method of amine aqueous solution is：Single product of the active ingredient of triethanolamine 99%, the triethanolamine and 60% for taking 40% mass parts go from
Sub- water mixing, is placed in after being kept for 2 hours under 5 DEG C of low temperature environment, triethanolamine solution is made.
5. the method for ultrafine electricity conductive circuit Nano silver solution is prepared according to claim 1, it is characterized in that, the formaldehyde is molten
The preparation method of liquid is：After 10% formaldehyde is mixed with 90% deionized water by mass percentage, it is placed under 5 DEG C of low temperature, first is made
Aldehyde solution.
6. the method for ultrafine electricity conductive circuit Nano silver solution is prepared according to claim 1, it is characterized in that, the water solubility
The preparation method of acrylic dispersion is：Using the single product of the water soluble acrylic resin of solids content 35%, then by 1 part of water
Soluble acrylic resin list product are mixed with the mass parts of 4 parts of deionized waters, obtain acrylic dispersion, according still further to quality hundred
Divide acrylic dispersion and 80% deionized water than 20% to mix the liquid for being dispersed into that solids content is 1.4%, then add
Enter surfactant, protected as matrix, acrylic dispersion is dispersed in the aqueous solution, water-soluble acrylic tree is made
Fat dispersion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510873988.7A CN105436515B (en) | 2015-12-03 | 2015-12-03 | A kind of preparation method of ultrafine electricity conductive circuit Nano silver solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510873988.7A CN105436515B (en) | 2015-12-03 | 2015-12-03 | A kind of preparation method of ultrafine electricity conductive circuit Nano silver solution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105436515A CN105436515A (en) | 2016-03-30 |
| CN105436515B true CN105436515B (en) | 2017-09-29 |
Family
ID=55547396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510873988.7A Active CN105436515B (en) | 2015-12-03 | 2015-12-03 | A kind of preparation method of ultrafine electricity conductive circuit Nano silver solution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105436515B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114210997A (en) * | 2021-11-05 | 2022-03-22 | 佛山科学技术学院 | Lead bonding method based on high-precision 3D printing |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4807933B2 (en) * | 2003-12-17 | 2011-11-02 | 株式会社アルバック | Method for forming transparent conductive film and transparent electrode |
| KR100768706B1 (en) * | 2006-06-08 | 2007-10-19 | 삼성전기주식회사 | Metal ink composition for ink-jet |
| JP5111170B2 (en) * | 2008-03-10 | 2012-12-26 | 富士フイルム株式会社 | Metal nanowire and method for producing the same, aqueous dispersion and transparent conductor |
| CN102324263B (en) * | 2011-07-04 | 2013-04-10 | 江苏瑞德新能源科技有限公司 | Silver paste for solar cells and preparation method thereof |
| CN103619128B (en) * | 2013-11-25 | 2017-02-15 | 深圳大学 | Preparing method of flexible circuit board based on ink-jet printing technique |
-
2015
- 2015-12-03 CN CN201510873988.7A patent/CN105436515B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105436515A (en) | 2016-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101805538B (en) | Lower-temperature sintered conductive ink | |
| CN106128555B (en) | A kind of highly conductive crystal silicon solar batteries front electrode silver slurry and preparation method thereof | |
| CN106981324B (en) | A kind of copper electrocondution slurry and its preparation method and application | |
| JP6274444B2 (en) | Method for producing copper powder | |
| CN102413967A (en) | Silver particles and a process for making them | |
| CN102220045A (en) | Low-temperature-sintered solvent-based nano-silver electroconductive ink and preparation process thereof | |
| CN102413968A (en) | Silver particles and a process for making them | |
| CN105583407A (en) | Preparation method of single-dispersion and high-tap-density spherical silver powder | |
| AU2006350054A1 (en) | Synthesis of metallic nanoparticle dispersions | |
| CN101554664A (en) | Method for preparing nano-scale silver powder | |
| CN101560349A (en) | Jet conductive ink | |
| CN104308183A (en) | Preparation method for flake silver powder for electronic paste | |
| CN104400000A (en) | Method for preparing spherical silver powder | |
| CN106205776A (en) | Low temperature curing type Graphene/conductive silver slurry and its preparation method and application | |
| CN102407341A (en) | surface modified particle diameter mixed silver powder and preparation method thereof | |
| CN101306468A (en) | Preparation method of conductive silver composite nano particles coated by polypyrrole | |
| CN103008679A (en) | Method for preparing nano-silver particle and nano-silver wire mixed conductive ink | |
| CN103042230A (en) | Preparation method for micron spherical silver powder for electronic paste | |
| CN105945302A (en) | Preparation method for antioxidant copper nanopowder | |
| CN104910685A (en) | Ink-jet printing electric conduction ink capable of being subjected to room temperature sintering, and applications thereof | |
| CN105694594A (en) | An aqueous graphene conductive printing ink suitable for screen printing and a preparing method thereof | |
| CN107614156B (en) | Copper powder and the manufacturing method for using its copper cream, conductive coating paint, conductive sheet and copper powder | |
| CN102167926B (en) | Novel nano cuprous oxide conductive ink and preparation method thereof | |
| CN104200875A (en) | Low-silver-content graphene composite conductive silver paste and preparation method thereof | |
| CN105436515B (en) | A kind of preparation method of ultrafine electricity conductive circuit Nano silver solution |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180614 Address after: 513499 Qingyuan City, Guangdong province Lianzhou city Qingyuan South National Industrial Park (land number):06380100017) Patentee after: Qingyuan Bajing New Material Co., Ltd. Address before: 528308 Shunde District, Foshan City, Guangdong Province, Xintang world long industrial zone Shilong Avenue (Shilin gloves Co., Ltd., the first floor of the workshop) Patentee before: FOSHAN SOLAR MATERIAL & EQUIPMENT CO., LTD. |