CN105665745A - Preparation method of silver nanoparticles - Google Patents
Preparation method of silver nanoparticles Download PDFInfo
- Publication number
- CN105665745A CN105665745A CN201610215976.XA CN201610215976A CN105665745A CN 105665745 A CN105665745 A CN 105665745A CN 201610215976 A CN201610215976 A CN 201610215976A CN 105665745 A CN105665745 A CN 105665745A
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- preparation
- silver nanoparticles
- silver
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
- B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
- B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
- B22F1/054—Nanosized particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
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- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The invention discloses a preparation method of silver nanoparticles. Silver nitrate and hydrazine hydrate are used as reactants, and polyvinylpyrrolidone is used as a protective agent for preparing silver nanoparticles. The prepared silver nanoparticles have good dispersibility and have uniform diameters of 40-60nm respectively and are a good conductive filler for conductive ink.
Description
Technical field
The present invention relates to field of nanometer material technology, it is specifically related to the preparation method of a kind of Silver nanoparticles.
Background technology
The silver-colored particulate being less than 100nm is referred to as nanometer silver. When the diameter of silver particulate reaches this yardstick, it is to increase have the relative proportion of the surface atom of higher-energy, material property can be made to present certain sudden change, this kind of change can show as the change as sintered ability characteristics. For nanometer silver, the stagnation point of its performance variation is relevant with mean particle dia, and when mean particle dia is less than 50nm, sintering character when its low temperature (is less than 200 DEG C) will produce obvious enhancing, and fusing point can be down to 120～200 DEG C. Jet conductive ink is exactly the characteristic development history that make use of Silver nanoparticles low melting point such that it is able to realizes printing and sintering process on plastic basis material, even paper substrate, obtains the conductive layer of excellent property. Nanometer silver is the main component of conductive ink, and can the height of its concentration be a very crucial problem, realize good conductive capability because it is related to and print smoothly.
Summary of the invention
The object of the invention is, it is provided that one prepares Silver nanoparticles method.
The technical solution adopted in the present invention is:
The preparation method of a kind of Silver nanoparticles, it is characterised in that, preparation process is as follows:
A: get appropriate silver nitrate solution and be placed in reactor;
B: with the solution in electric blender stirred reactor, under heating in water bath, maintain the temperature at 62-65 DEG C, drips hydrazine hydrate solution in reactor according to certain rate of addition and reacts, and after dropwising, continues insulation 30-40min;
C: add a certain amount of deionized water, be placed in whizzer centrifugal with 5000r/min, washing, isolates lower sediment thing and is Silver nanoparticles.
Further, the silver nitrate solution concentration of described step a is 1.2mol/L.
Further, described silver nitrate solution further comprises polyvinylpyrrolidone.
Further, the hydrazine hydrate solution concentration of described step b is 0.5mol/L.
Further, the rate of addition of described step b be 30 every minute.
The present invention relative to the useful effect of prior art is: the Silver nanoparticles of the preparation of the present invention, using Silver Nitrate and hydrazine hydrate as reactant, take polyvinylpyrrolidone as protective material preparation silver particulate. Obtained Silver nanoparticles, good dispersity, uniform particles, respectively at 40-60nm, is the conductive filler material that electrically conductive ink is good.
Embodiment
Below with reference to embodiment, the technique effect of the design of the present invention and generation is clearly and completely described, fully to understand object, the characteristic sum effect of the present invention. Obviously; described embodiment is a part of embodiment of the present invention, instead of whole embodiment, based on embodiments of the invention; other embodiments that the technician of this area obtains under the prerequisite not paying creative work, all belong to the scope of protection of the invention.
Embodiment 1: the preparation method of a kind of Silver nanoparticles, it is characterised in that, preparation process is as follows:
A: get appropriate silver nitrate solution and be placed in reactor;
B: with the solution in electric blender stirred reactor, under heating in water bath, maintain the temperature at 62-65 DEG C, drips hydrazine hydrate solution in reactor according to certain rate of addition and reacts, and after dropwising, continues insulation 30-40min;
C: add a certain amount of deionized water, be placed in whizzer centrifugal with 5000r/min, washing, isolates lower sediment thing and is Silver nanoparticles.
Wherein, the silver nitrate solution concentration of above-mentioned steps a is 1.2mol/L, also comprises in above-mentioned silver nitrate solution
Polyvinylpyrrolidone, the hydrazine hydrate solution concentration of above-mentioned steps b to be the rate of addition of 0.5mol/L, above-mentioned steps b be 30 every minute.
Above the better embodiment of the present invention is carried out concrete explanation, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modifications or replacement under the prerequisite not running counter to spirit of the present invention, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (5)
1. the preparation method of a Silver nanoparticles, it is characterised in that, preparation process is as follows:
A: get appropriate silver nitrate solution and be placed in reactor;
B: with the solution in electric blender stirred reactor, under heating in water bath, maintain the temperature at 62-65 DEG C, drips hydrazine hydrate solution in reactor according to certain rate of addition and reacts, and after dropwising, continues insulation 30-40min;
C: add a certain amount of deionized water, be placed in whizzer centrifugal with 5000r/min, washing, isolates lower sediment thing and is Silver nanoparticles.
2. the preparation method of Silver nanoparticles according to claim 1, it is characterised in that, the silver nitrate solution concentration of described step a is 1.2mol/L.
3. the preparation method of Silver nanoparticles according to claim 2, it is characterised in that, described silver nitrate solution further comprises polyvinylpyrrolidone.
4. the preparation method of Silver nanoparticles according to claim 1, it is characterised in that, the hydrazine hydrate solution concentration of described step b is 0.5mol/L.
5. the preparation method of Silver nanoparticles according to claim 1, it is characterised in that, the rate of addition of described step b be 30 every minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610215976.XA CN105665745A (en) | 2016-04-10 | 2016-04-10 | Preparation method of silver nanoparticles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610215976.XA CN105665745A (en) | 2016-04-10 | 2016-04-10 | Preparation method of silver nanoparticles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105665745A true CN105665745A (en) | 2016-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610215976.XA Pending CN105665745A (en) | 2016-04-10 | 2016-04-10 | Preparation method of silver nanoparticles |
Country Status (1)
| Country | Link |
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| CN (1) | CN105665745A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108797132A (en) * | 2018-05-23 | 2018-11-13 | 乔德（南通）纺织品有限公司 | A kind of manufacture craft of nano-silver anion functional home textile fabric |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000248303A (en) * | 1999-03-03 | 2000-09-12 | Dowa Mining Co Ltd | Production of silver-coated copper powder |
| CN101869988A (en) * | 2010-05-06 | 2010-10-27 | 复旦大学 | Method for preparing water base nano silver |
| CN102942823A (en) * | 2012-11-07 | 2013-02-27 | 天津大学 | Manufacture method of conductive ink and paper-based conductive circuit |
| CN103433502A (en) * | 2013-08-13 | 2013-12-11 | 胡敏刚 | High-dispersing silver powder and preparation method thereof |
| CN105170998A (en) * | 2015-10-29 | 2015-12-23 | 无锡桥阳机械制造有限公司 | Preparation process of nano silver powder |
-
2016
- 2016-04-10 CN CN201610215976.XA patent/CN105665745A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000248303A (en) * | 1999-03-03 | 2000-09-12 | Dowa Mining Co Ltd | Production of silver-coated copper powder |
| CN101869988A (en) * | 2010-05-06 | 2010-10-27 | 复旦大学 | Method for preparing water base nano silver |
| CN102942823A (en) * | 2012-11-07 | 2013-02-27 | 天津大学 | Manufacture method of conductive ink and paper-based conductive circuit |
| CN103433502A (en) * | 2013-08-13 | 2013-12-11 | 胡敏刚 | High-dispersing silver powder and preparation method thereof |
| CN105170998A (en) * | 2015-10-29 | 2015-12-23 | 无锡桥阳机械制造有限公司 | Preparation process of nano silver powder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108797132A (en) * | 2018-05-23 | 2018-11-13 | 乔德（南通）纺织品有限公司 | A kind of manufacture craft of nano-silver anion functional home textile fabric |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160615 |