CN108608003A - A kind of preparation method of ultra-thin gold foil and goldleaf powder - Google Patents
A kind of preparation method of ultra-thin gold foil and goldleaf powder Download PDFInfo
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- CN108608003A CN108608003A CN201611139733.9A CN201611139733A CN108608003A CN 108608003 A CN108608003 A CN 108608003A CN 201611139733 A CN201611139733 A CN 201611139733A CN 108608003 A CN108608003 A CN 108608003A
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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
-
- 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
- B22F1/0551—Flake form nanoparticles
-
- 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
- B22F1/06—Metallic powder characterised by the shape of the particles
- B22F1/068—Flake-like particles
-
- 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
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
-
- 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
Abstract
The present invention relates to a kind of preparation methods of ultra-thin gold foil, and steps are as follows, in parts by weight, will be mixed in 1 part of zinc or palladium powder and 500 parts 30000 parts of distilled water merging reaction vessels, form mixed liquor；Mixed liquor is shaken until zinc or palladium powder are dispersed in distilled water, and is stirred liquid and zinc or palladium powder is kept to be dispersed in distilled water；In parts by weight, the chlorauric acid solution of 4.22 parts 630 parts a concentration of 0.1mol/L 0.5mol/L is added in mixed liquor；It is stirred liquid, mixing time is 3 20 minutes；0.08 hour is stood, mixed liquor is stirred using magnetic stirring apparatus, using magnetic stirrer, mixing time is 5 hours 1 hour, and gold foil is made.The present invention is more simple for process than traditional gold foil preparation process and other goldleaf preparation methods, without a large amount of manpowers and complicated equipment, it is at low cost, can be obtained ultra-thin gold foil.
Description
Technical field
The present invention relates to the preparation process of gold foil more particularly to a kind of preparation methods of ultra-thin gold foil and goldleaf powder.
Background technology
One, the purposes of gold foil
The purposes of goldleaf is very extensive, is applied to building decoration, drug, cosmetics, food, furniture, RMB anti-counterfeiting, packet
Fill the fields such as decoration, ceramic craft bottle.
(1), it eats
In recent years, Japan, Southeast Asia one were prevailing with edible goldleaf, goldleaf sumptuous meal, gold foil wine, goldleaf water, goldleaf candy, gold
Foil cake is come out one after another.A small amount of goldleaf is added in edible wine, and there are the healthcare functions such as removing toxic substances, beauty treatment.Nineteen eighty-three, the world defended
Gold is formally included in food additives scope by the raw tissue food additives code committee.The work of China national Ministry of Public Health publication
For the substance that new resource for food uses, nine classes are divided into, wherein the 8th quasi-mineral is clearly loaded with " goldleaf " with trace element.Mesh
Preceding domestic existing many enterprises' production " gold foil wine ".
(2), medical
In modern medicine highly developed today, goldleaf becomes " Jindan god in great demand at home and abroad still as the formula being used as medicine
Medicine ", such as " cow-bezoar pacify palace ball " of famous Chinese patent drug Tongrentang of China, " Huang clear away heart-fire ball ", " Bezoar pill for lowering blood pressure " it is rare it is middle at
Medicine etc. is all made of goldleaf and enters medicine composition or wrapped up with goldleaf.Civil in China, also useful goldleaf is the folk prescription that children help get over a shock.Existing
For in surgical operation, goldleaf is used for smelting treatment and the surgery stitching operation of burned skin.
(3), process gift
With the process gift of goldleaf veneer, the cost for having opposite proof gold product cheap had not only embodied the luxurious of gold, but also
Maintain the marrow of art；Can the brilliant perpetuity as gold, can more surmount gold makes its distillation for collection cosmetic decoration, art
Appreciation, treasure are concealed in one, become current newest trend.Currently, goldleaf field of artware is to be a splendid legacy, such as goldleaf
It draws, gold is as card, gold name, proof gold foil photo, crystal goldleaf goods of furniture for display rather than for use, goldleaf goods of furniture for display rather than for use, key-ring, gold-lettered signboard etc..Current city
On field, goldleaf craftwork is even more to weed out the old and bring forth the new, and transparent film, which is made, in picture is compounded on the egative film for posting goldleaf, and height is made
Shelves emulation metallic foil picture and the increasingly complex metallic foil picture and bristol glaze metallic foil picture etc. of technique.
(4), cosmetics
In modern society, cosmetics are developed with goldleaf, have started at home and abroad to become a kind of fashion.
(5), building decoration
A small amount of gold can play the effect that ontology is made of gold.Gilding technique is widely used in pseudo-classic architecture, the modern times build
It builds, golden word board etc., such as the figure of buddha is gilded, carved beams and painted rafter is gilded, is decorated with gilding.Foremost building of gilding has：Beijing day
An Men, the Great Hall of the People, the Chinese Central Television (CCTV), Shanghai Oriental Pearl, Tibet Potala Palace etc..In addition, goldleaf still makes top grade
Draw the raw material of ink.
Two, gold foil traditional preparation methods
The preparation method of gold foil mainly uses fumed technology.Goldleaf production technology is unique, and technology requires high, foliation industry
Belong to labor-intensive industry.
It is as follows that traditional technique of making gold foil will generally pass through 12 programs.It is respectively：Gold proportioning changes gold
Item, clap leaf, make spill, fall Jin Kaizi, be stained with golden spill, beat Jin Kaizi, dress opens son, a heatable brick bed hole, beaten it is thin, provide, cut goldleaf.
Gold, which matches → change gold bar → bat leaf →, to be made spill → falling Jin Kaizi → and is stained with golden spill → play Jin Kaizi → dress and open
→ a heatable brick bed is cheated →, which has beaten carefully → to provide →, cuts goldleaf
Gold matches：Raw material gold is taken out from national treasury, is matched according to product variety particular/special requirement, and is added quantitative
Silver, the copper of ratio, comply with the gold content of needs.
Change gold bar：Proportioned gold is put into crucible by high temperature melting into Jinsui River, makes the trace silver of incorporation, copper
Even into wherein, dregs are precipitated, and cooling in measurement metal trough is poured into Jinsui River, becomes gold bar.
Clap leaf：By thick gold bar by beating into thin gold ribbon after, be cut into thin as a piece of paper yunnan craibiodendron leaf.
Make spill：Yunnan craibiodendron leaf is cut into small yunnan craibiodendron leaf with bamboo small knife, the gold leaf of this size is known as golden spill.
Fall Jin Kaizi：Coal paper is put into insulating box to heat, can make gold after loading onto golden spill for next process
Quickly extend.
It is stained with golden spill：Golden spill is stained with finger tip respectively and is put into coal paper bag, two golden spills of one piece of coal folder,
It is required that all golden spills are put into coal paper center.
Beat Jin Kaizi：The coal paper bag for being surrounded by golden spill is placed to rotate on foil-hammering machine and is beaten, the gold of thin as a piece of paper sample is made
Spill is beaten thinner more to open.
Dress opens son：The golden spill being opened in coal paper bag needs to continue to beat foliate, by " Jin Kaizi " " Jin Kaizi "
It carefully takes advantage of one's intention as revealed in what one says with goose feather to provoke and be put into coal paper bag and (be commonly called as family's life), this procedure, which is named to fill, opens son.
A heatable brick bed a heatable brick bed：" the opening son " that installs is put into electric furnace and passes through thermostatic control, ensures it not by place temperature humidity
It influences.
It has beaten thin：Continue to be put into foil-hammering machine rotation by " family's life " packet to beat, until cannot thin thin degree again again, it is this to beat
Method jargon claims " having beaten thin ".At this point, if as thin as cicada's wings, the soft goldleaf like silks and satins, light goose feather is just broken into.Therefore, this road sequence one
As be referred to as play foil, it is very crucial.
It provides：Goldleaf in coal paper bag is chosen with goose feather one's intention as revealed in what one says in the Maotai paper of soft microgroove again, weighs up tool.
Cut goldleaf：The shape that goldleaf is cut into rule with bamboo knife is known as cutting foil.
Three, the goldleaf manufacturing method of related patents report
Celluloid sheet is placed in vacuum state space, molten steaming device is equipped in vacuum space, gold is heated and vaporized,
Vacuum state makes the gold ion for steaming vaporization that radiation and particle encounter reflective condition be presented, and gold is made to adhere in film micro mist shape
In on the celluloid sheet that static electrification has strong suction, shell-protecting paper is set in attachment gold micro mist celluloid sheet upper and lower, is turned by shield shellfish
The celluloid sheet for adhering to gold micro mist is transferred on shell-protecting paper by print machine, and celluloid sheet and upper and lower shell-protecting paper are torn off to get to two gold medals
Paillon.Its manufacturing device includes vacuum pump, movable pulley, roller bearing, sprocket wheel, the rotating mechanism of idler wheel composition and shield shellfish transfer.
But the manufacturing method of above-mentioned either conventional preparation techniques or patent report, technique is complex, and needs
A large amount of manpower and complicated equipment are put into, cost is higher.
Invention content
In order to solve gold foil manufacture traditional handicraft and patent report preparation method existing for complex process, manpower and
Equipment investment is big, problem of high cost, and the present invention provides a kind of preparation method of ultra-thin gold foil to solve the above problems.
A kind of preparation method of ultra-thin gold foil, steps are as follows,
1 part of zinc or palladium powder and 500 parts -30000 parts of distilled water are placed in reactor by the first step in parts by weight
Mixing in ware, forms mixed liquor；
Second step shakes until zinc or palladium powder are dispersed in distilled water mixed liquor, and is stirred liquid guarantor
It holds zinc or palladium powder is dispersed in distilled water；
Third walks, in parts by weight, the gold chloride of 4.22 parts -630 parts a concentration of 0.1mol/L-0.5mol/L is molten
Liquid is added in mixed liquor；
4th step, is stirred liquid, and mixing time is 3-20 minutes；
5th step is stood -48 hours 0.08 hour, is stirred to mixed liquor using magnetic stirring apparatus, works as magnetic agitation
After device is opened, the lower rotation of the stirrer of magnetic stirring apparatus in reaction vessels, solution forms whirlpool under stirrer effect,
Liquid flowing below whirlpool, forms negative pressure, generates suction, in addition the effect of gravity, gold nanoparticle aggregate is easy in external force
It is deposited to container bottom under effect.
6th step, using magnetic stirrer, mixing time is -5 hours 1 hour, you can obtains gold foil.
Further, preferably, the distilled water is redistilled water.
Further, specifically, the reaction vessels are glassware.
Preferably, the purity of the zinc or palladium powder is at least 99.99%, grain size is 200 μm -800 μm.
Further, the rotating speed of the magnetic stirring apparatus is controlled at 300 revs/min -2000 revs/min.It may be noted that
It is to be proved by many experiments, stirring rotor speed control just can be tightly fitted at 300 revs/min -2000 revs/min
Container bottom, and gold nanoparticle aggregate is rolled, form ultra-thin gold foil.
Wherein mixed liquor is shaken using ultrasonic wave in second step, the concussion time is 3-5 minutes.
The thickness of the gold foil is 10nm-500 μm, and width is 500 μm of -1cm.
A kind of preparation method of goldleaf powder, gold foil made from the preparation method to above-mentioned ultra-thin gold foil carry out as follows
Step,
Gold foil is taken out after being cleaned using redistilled water, is put into redistilled water by the first step,
Second step, using ultrasonic oscillation -5 seconds 2 seconds,
Third walks, and is dried using heated drying method, obtains goldleaf powder.
Advantageous effect：(1) preparation method of the invention is simple, and (2) compare traditional gold foil preparation process and other goldleaf
Preparation method is not necessarily to put into a large amount of manpowers and complicated equipment, greatly reduces production cost, (3) reproducibility is extremely strong, is convenient for
It puts into production, goldleaf is ultra-thin made from the preparation method of (4) through the invention, and thickness is only 10nm-500 μm, and width is only
500μm-1cm。
Specific implementation mode
A kind of specific embodiment of the preparation method of ultra-thin gold foil of the present invention,
Embodiment 1：In parts by weight, by 1 part of purity 99.99%, grain size is 200 μm of zinc or palladium powder and 500 parts
Cup mixing is burnt in redistilled water merging, is formed mixed liquor, is shaken mixed liquor using ultrasonic wave, is shaken 3 minutes, until
Zinc or palladium powder are dispersed in distilled water, are then stirred liquid, keep zinc or palladium powder evenly dispersed.According to parts by weight
Meter, the chlorauric acid solution of 4.22 parts of a concentration of 0.1mol is added in mixed liquor, is stirred liquid 3 minutes, stops stirring.It is quiet
It sets 5 minutes, the stirrer of magnetic stirring apparatus is put into mixed liquor, mixed liquor is stirred using magnetic stirring apparatus, magnetic force
Agitator speed is controlled at 2000 revs/min, is stirred 1 hour, you can obtains gold foil.The thickness of gold foil is 10nm-300 at this time
μm, width is 500 μm of -8mm.
Embodiment 2：In parts by weight, by 1 part of at least purity 99.99%, grain size be 400 μm of zinc or palladium powder with
Cup mixing is burnt in 10000 parts of redistilled water merging, is formed mixed liquor, is shaken mixed liquor using ultrasonic wave, concussion 4
Minute, until zinc or palladium powder are dispersed in distilled water, it is then stirred liquid, keeps zinc or palladium powder evenly dispersed.According to
The chlorauric acid solution of 50 parts of a concentration of 0.3mol is added in mixed liquor by parts by weight meter, is stirred liquid 10 minutes, stops
Stirring.1 hour is stood, the stirrer of magnetic stirring apparatus is put into mixed liquor, mixed liquor is stirred using magnetic stirring apparatus
It mixes, magnetic stirring apparatus rotating speed is controlled at 1500 revs/min, is stirred 2 hours, you can obtains gold foil.The thickness of gold foil is at this time
100nm-500 μm, width is 500 μm of -1cm.
Embodiment 3：In parts by weight, by 1 part of at least purity 99.99%, grain size be 600 μm of zinc or palladium powder with
Cup mixing is burnt in 20000 parts of redistilled water merging, is formed mixed liquor, is shaken mixed liquor using ultrasonic wave, concussion 4
Minute, until zinc or palladium powder are dispersed in distilled water, it is then stirred liquid, keeps zinc or palladium powder evenly dispersed.According to
The chlorauric acid solution of 150 parts of a concentration of 0.4mol is added in mixed liquor by parts by weight meter, is stirred liquid 15 minutes, stops
It only stirs, stands 10 hours, the stirrer of magnetic stirring apparatus is put into mixed liquor, mixed liquor is carried out using magnetic stirring apparatus
Stirring, magnetic stirring apparatus rotating speed are controlled at 1000 revs/min, are stirred 4 hours, you can obtain gold foil.The thickness of gold foil at this time
It it is 100nm-500 μm, width is 500 μm of -8mm.
Embodiment 4：In parts by weight, by 1 part of at least purity 99.99%, grain size be 800 μm of zinc or palladium powder with
Cup mixing is burnt in 30000 parts of redistilled water merging, is formed mixed liquor, is shaken mixed liquor using ultrasonic wave, concussion 5
Minute, until zinc or palladium powder are dispersed in distilled water, it is then stirred liquid, keeps zinc or palladium powder evenly dispersed.According to
The chlorauric acid solution of 630 parts of a concentration of 0.5mol is added in mixed liquor by parts by weight meter, is stirred liquid 20 minutes, stops
Only stir.48 hours are stood, the stirrer of magnetic stirring apparatus is put into mixed liquor, mixed liquor is carried out using magnetic stirring apparatus
Stirring, magnetic stirring apparatus rotating speed are controlled at 300 revs/min, are stirred 5 hours, you can obtain gold foil.The thickness of gold foil is at this time
80nm-500 μm, width is 500 μm of -1cm.
A kind of specific embodiment of the preparation method of goldleaf powder of the present invention,
Embodiment 1：In parts by weight, by 1 part of purity 99.99%, grain size is 200 μm of zinc or palladium powder and 500 parts
Cup mixing is burnt in redistilled water merging, is formed mixed liquor, is shaken mixed liquor using ultrasonic wave, is shaken 3 minutes, until
Zinc or palladium powder are dispersed in distilled water, are then stirred liquid, keep zinc or palladium powder evenly dispersed.According to parts by weight
Meter, the chlorauric acid solution of 4.22 parts of a concentration of 0.1mol is added in mixed liquor, is stirred liquid 3 minutes, stops stirring.It is quiet
It sets to 0 .08 hours, the stirrer of magnetic stirring apparatus is put into mixed liquor, mixed liquor is stirred using magnetic stirring apparatus, magnetic
Power agitator speed is controlled at 2000 revs/min, is stirred 1 hour, you can obtains gold foil.Gold foil is taken out, then with secondary steaming
Distilled water is rinsed, and after rinsing well, is put into redistilled water, with ultrasonic oscillation 2 seconds, finally utilize heated drying method into
Row drying finally obtains goldleaf powder.
Embodiment 2：In parts by weight, by 1 part of at least purity 99.99%, grain size be 400 μm of zinc or palladium powder with
Cup mixing is burnt in 10000 parts of redistilled water merging, is formed mixed liquor, is shaken mixed liquor using ultrasonic wave, concussion 4
Minute, until zinc or palladium powder are dispersed in distilled water, it is then stirred liquid, keeps zinc or palladium powder evenly dispersed.According to
The chlorauric acid solution of 50 parts of a concentration of 0.3mol is added in mixed liquor by parts by weight meter, is stirred liquid 10 minutes, stops
Stirring.10 minutes are stood, the stirrer of magnetic stirring apparatus is put into mixed liquor, mixed liquor is stirred using magnetic stirring apparatus
It mixes, magnetic stirring apparatus rotating speed is controlled at 1000 revs/min, is stirred 3 hours, you can obtains gold foil.Gold foil is taken out, then with two
Secondary distilled water is rinsed, and after rinsing well, is put into redistilled water, with ultrasonic oscillation 3 seconds, finally utilizes heated drying
Method is dried, and finally obtains goldleaf powder.
Embodiment 3：In parts by weight, by 1 part of at least purity 99.99%, grain size be 600 μm of zinc or palladium powder with
Cup mixing is burnt in 20000 parts of redistilled water merging, is formed mixed liquor, is shaken mixed liquor using ultrasonic wave, concussion 4
Minute, until zinc or palladium powder are dispersed in distilled water, it is then stirred liquid, keeps zinc or palladium powder evenly dispersed.According to
The chlorauric acid solution of 150 parts of a concentration of 0.4mol is added in mixed liquor by parts by weight meter, is stirred liquid 15 minutes, stops
It only stirs, stands 48 hours, the stirrer of magnetic stirring apparatus is put into mixed liquor, mixed liquor is carried out using magnetic stirring apparatus
Stirring, magnetic stirring apparatus rotating speed are controlled at 1000 revs/min, are stirred 4 hours, you can obtain gold foil.Gold foil is taken out, is then used
Redistilled water is rinsed, and after rinsing well, is put into redistilled water, finally dry using heat with ultrasonic oscillation 4 seconds
Dry method is dried, and finally obtains goldleaf powder.
Embodiment 4：In parts by weight, by 1 part of at least purity 99.99%, grain size be 800 μm of zinc or palladium powder with
Cup mixing is burnt in 30000 parts of redistilled water merging, is formed mixed liquor, is shaken mixed liquor using ultrasonic wave, concussion 5
Minute, until zinc or palladium powder are dispersed in distilled water, it is then stirred liquid, keeps zinc or palladium powder evenly dispersed.According to
The chlorauric acid solution of 630 parts of a concentration of 0.5mol is added in mixed liquor by parts by weight meter, is stirred liquid 20 minutes, stops
Only stir.20 hours are stood, the stirrer of magnetic stirring apparatus is put into mixed liquor, mixed liquor is carried out using magnetic stirring apparatus
Stirring, magnetic stirring apparatus rotating speed are controlled at 300 revs/min, are stirred 5 hours, you can obtain gold foil.Gold foil is taken out, is then used
Redistilled water is rinsed, and after rinsing well, is put into redistilled water, finally dry using heat with ultrasonic oscillation 5 seconds
Dry method is dried, and finally obtains goldleaf powder.
It is enlightenment with above-mentioned desirable embodiment according to the present invention, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to determine its technical scope according to right.
Claims (8)
1. a kind of preparation method of ultra-thin gold foil, it is characterised in that：Steps are as follows,
The first step in parts by weight will be in 1 part of zinc or palladium powder and 500 parts -30000 parts of distilled water merging reaction vessels
Mixing forms mixed liquor；
Second step shakes until zinc or palladium powder are dispersed in distilled water mixed liquor, and is stirred liquid and keeps zinc
Or palladium powder is dispersed in distilled water；
Third walks, and in parts by weight, the chlorauric acid solution of 4.22 parts -630 parts a concentration of 0.1mol/L-0.5mol/L is added
It is added in mixed liquor；
4th step, is stirred liquid, and mixing time is 3-20 minutes；
5th step is stood -48 hours 0.08 hour, is stirred to mixed liquor using magnetic stirring apparatus,
6th step, using magnetic stirrer, mixing time is -5 hours 1 hour, you can obtains gold foil.
2. the preparation method of ultra-thin gold foil as described in claim 1, it is characterised in that：The distilled water is second distillation
Water.
3. the preparation method of ultra-thin gold foil as described in claim 1, it is characterised in that：The reaction vessels are vierics
Ware.
4. the preparation method of ultra-thin gold foil as described in claim 1, it is characterised in that：The purity of the zinc or palladium powder is extremely
It is 99.99% less, grain size is 200 μm -800 μm.
5. the preparation method of ultra-thin gold foil as described in claim 1, it is characterised in that:The rotating speed of the magnetic stirring apparatus
Control is at 300 revs/min -2000 revs/min.
6. the preparation method of ultra-thin gold foil as described in claim 1, it is characterised in that:Ultrasonic wave is used wherein in second step
Mixed liquor is shaken, the concussion time is 3-5 minutes.
7. the preparation method of ultra-thin gold foil as described in claim 1, it is characterised in that:The thickness of the gold foil is
10nm-500 μm, width is 500 μm of -1cm.
8. a kind of preparation method of goldleaf powder, it is characterised in that：To the preparation method system of the ultra-thin gold foil in claim 1-7
The gold foil obtained carries out following steps,
Gold foil is taken out after being cleaned using redistilled water, is put into redistilled water by the first step,
Second step, using ultrasonic oscillation -5 seconds 2 seconds,
Third walks, and is dried using heated drying method, obtains goldleaf powder.
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| CN201611139733.9A CN108608003B (en) | 2016-12-12 | 2016-12-12 | Preparation method of ultrathin gold foil sheet and gold foil powder |
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|---|---|---|---|
| CN201611139733.9A CN108608003B (en) | 2016-12-12 | 2016-12-12 | Preparation method of ultrathin gold foil sheet and gold foil powder |
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| CN108608003B CN108608003B (en) | 2021-09-17 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1205948A (en) * | 1997-07-23 | 1999-01-27 | 史庭兆 | Gold foil manufacturing method and equipment |
| US20020189060A1 (en) * | 2001-06-19 | 2002-12-19 | Shang-Wen Tang | Method for fabricating high purity gold foil |
| US20050056118A1 (en) * | 2002-12-09 | 2005-03-17 | Younan Xia | Methods of nanostructure formation and shape selection |
| CN1714956A (en) * | 2004-06-28 | 2006-01-04 | 金成权 | Method for producing gold foil sheet |
| CN101716685A (en) * | 2009-12-14 | 2010-06-02 | 昆明理工大学 | Method for preparing spherical superfine silver powder by using chemical reduction method |
| CN102172776A (en) * | 2011-01-25 | 2011-09-07 | 西安凯立化工有限公司 | Method for preparing metal palladium powder |
| BR102014003744A2 (en) * | 2014-02-18 | 2015-12-08 | Univ Fed Do Rio Grande Do Sul | manufacturing process of supported catalysts containing monometallic and bimetallic transition metal nanoparticles |
| CN105127448A (en) * | 2015-09-25 | 2015-12-09 | 合肥工业大学 | Room-temperature preparation method for nano silver sheet with ultra-large area |
-
2016
- 2016-12-12 CN CN201611139733.9A patent/CN108608003B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1205948A (en) * | 1997-07-23 | 1999-01-27 | 史庭兆 | Gold foil manufacturing method and equipment |
| US20020189060A1 (en) * | 2001-06-19 | 2002-12-19 | Shang-Wen Tang | Method for fabricating high purity gold foil |
| US20050056118A1 (en) * | 2002-12-09 | 2005-03-17 | Younan Xia | Methods of nanostructure formation and shape selection |
| CN1714956A (en) * | 2004-06-28 | 2006-01-04 | 金成权 | Method for producing gold foil sheet |
| CN101716685A (en) * | 2009-12-14 | 2010-06-02 | 昆明理工大学 | Method for preparing spherical superfine silver powder by using chemical reduction method |
| CN102172776A (en) * | 2011-01-25 | 2011-09-07 | 西安凯立化工有限公司 | Method for preparing metal palladium powder |
| BR102014003744A2 (en) * | 2014-02-18 | 2015-12-08 | Univ Fed Do Rio Grande Do Sul | manufacturing process of supported catalysts containing monometallic and bimetallic transition metal nanoparticles |
| CN105127448A (en) * | 2015-09-25 | 2015-12-09 | 合肥工业大学 | Room-temperature preparation method for nano silver sheet with ultra-large area |
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| CN108608003B (en) | 2021-09-17 |
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