CN104012574A - Carrier nano-silver antibacterial material, preparation method thereof and antibacterial product and preparation method thereof - Google Patents
Carrier nano-silver antibacterial material, preparation method thereof and antibacterial product and preparation method thereof Download PDFInfo
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- CN104012574A CN104012574A CN201410274036.9A CN201410274036A CN104012574A CN 104012574 A CN104012574 A CN 104012574A CN 201410274036 A CN201410274036 A CN 201410274036A CN 104012574 A CN104012574 A CN 104012574A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/16—Heavy metals; Compounds thereof
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/86—Glazes; Cold glazes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/12—Adsorbed ingredients, e.g. ingredients on carriers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/673—Inorganic compounds
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- Agronomy & Crop Science (AREA)
- Inorganic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
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- General Health & Medical Sciences (AREA)
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Abstract
The invention provides a carrier nano-silver antibacterial material which comprises kaolin and nano-silver, wherein a part of nano-silver is embedded between crystal layers of kaolin, and the content of nano-silver is 0.01-10mol/kg. The invention further provides a preparation method of the carrier nano-silver antibacterial material, an antibacterial product prepared by the carrier nano-silver antibacterial material and a preparation method of the antibacterial product. Concentration of nano-silver in the carrier nano-silver antibacterial material is 9-20 times of that obtained by a direct hydrothermal method without a reducing agent, so that the carrier nano-silver antibacterial material has a good antibacterial effect.
Description
Technical field
The present invention relates to a kind of carrier nano silver antibacterial material and preparation method thereof, also relate to a kind of antimicrobial product prepared by this carrier nano silver antibacterial material and preparation method thereof that adopts.
Background technology
Since ancient times, silver is just used to accelerating wound healing, treatment is infected, purified waste water and preserve beverage.Existing nanometer silver antimicrobial product is often directly used silver powder or silver ion complex to add in product as antibacterial main body.When meeting water or organic detergent, silver powder easily runs off owing to lacking adhesion.Though silver ion is in use strong compared with silver powder with the adhesion of product, run into the organic solvent that can react with it and also can produce desorption, and silver ion is owing to losing one or more electronics, has very strong oxidisability, thereby the restriction that contacts with human body cell of existence.
Summary of the invention
In order to overcome above-mentioned technical problem, the invention provides a kind of carrier nano silver antibacterial material and preparation method thereof; Meanwhile, also provide a kind of antimicrobial product prepared by this carrier nano silver antibacterial material and preparation method thereof that adopts.
A carrier nano silver antibacterial material, it contains kaolin and Nano Silver, and part Nano Silver is embedded between kaolin crystal layer, and the content of described Nano Silver is 0.01-10mol/kg.
Preferably, the molecular formula of described carrier nano silver antibacterial material is Al
2ag
x(Si
2o
5) (OH)
4, x=0.001-2.62 wherein.
Preferably, described carrier nano silver antibacterial material is greater than 99.99% to the killing rate of Escherichia coli or staphylococcus aureus.
An antimicrobial product that contains described carrier nano silver antibacterial material, it contains 0.3%-5% weight ratio, particle diameter is the carrier nano silver antibacterial material of 1-50 micron.
Preferably, described antimicrobial product is ceramic glaze, coating, film, plastics, dyestuff or fiber; Or ceramic, the case of electronic device for described ceramic glaze, made; Or the tableware of making for described plastics, PP material chopping board, ABS material bus handrail and seat, PE material sticking film for mobile phone, case of electronic device, Medical Devices or medical supplies; Or textile, the knitting for described fiber, made.
A method for carrier nano silver antibacterial material, comprises the steps: kaolin to mix with dimethyl sulphoxide solution, obtains kaolin/dimethyl sulfoxide compound; By described kaolin/dimethyl sulfoxide compound and surfactant with the quality of 200:1-2:1 than mix and blend, and add silver ammino solution again to stir, obtain silver-colored ammonia mixed liquor; Adopt photo-reduction that the silver ammino solution molecule in silver-colored ammonia mixed liquor is reduced to Nano Silver, make carrier nano silver antibacterial material, in described carrier nano silver antibacterial material, the content of Nano Silver is 0.01-10mol/kg.
Preferably, described photo-reduction is specifically realized by the following method: silver-colored ammonia mixed liquor is placed under the ultraviolet light between 250nm-420nm, and photocatalysis 6-72h, obtains Nano Silver/kaolin intercalation compound.Before described photo-reduction is also included in ultraviolet catalytic processing; in silver-colored ammonia mixed liquor, add protectant, described protectant is selected from one or both in polyethylene glycol, polypropylene glycol, ethylene glycol, sorbierite, sodium citrate, polyvinylpyrrolidone (PVP), carboxymethyl cellulose, calgon.
Preferably, described protectant adds according to the mol ratio of silver ammino solution and protectant 1:10-10:1.
Preferably, adopt hydrothermal reduction method to substitute described employing photo-reduction, specifically realize in the following way: to the ratio that is 0.3-10 according to the mol ratio of silver ammino solution and reductant in silver-colored ammonia mixed liquor, add reductant, afterwards, at 50-100 ℃, carry out reduction reaction.
The present invention adopts photo-reduction or hydrothermal reduction method, by being embedded in kaolin crystal layer, be Nano Silver with the silver ion reduction that loads on kaolin crystal edge, improved widely the conversion ratio that silver ion is converted into Nano Silver, and then improved concentration (be do not add the Nano Silver in reductant Direct Hydrothermal method 9-20 doubly) and the antibacterial effect of Nano Silver in described carrier nano silver antibacterial material, reduce the consumption of carrier nano silver antibacterial material while producing antimicrobial product.
Accompanying drawing explanation
Accompanying drawing forms the part of this specification, for helping further to understand the present invention.These accompanying drawings illustrate some embodiments of the present invention, and are used for illustrating principle of the present invention together with specification.In accompanying drawing:
Fig. 1 has shown according to the XRD diffraction pattern of the carrier nano silver antibacterial material of an embodiment of the invention; Wherein, 1 is kaolin XRD diffracting spectrum, and 2 is the XRD diffracting spectrum of carrier nano silver antibacterial material.
Embodiment
Below in conjunction with specific embodiment disease, with reference to accompanying drawing, the specific embodiment of the present invention is described.
The invention provides a kind of carrier nano silver antibacterial material, it is Nano Silver/kaolin intercalation compound.This carrier nano silver antibacterial material contains kaolin, Nano Silver and silver ion.Described Nano Silver, silver ion load on kaolin.Described kaolin is 1:1 type dioctahedron phyllosilicate structure, part Nano Silver, silver ion are embedded between kaolin crystal layer, and kaolin crystal edge also load has Nano Silver and silver ion, spacing between described kaolin two-phase vincial faces layer is 1-5nm, the content of described Nano Silver is 0.01-10mol/kg, and the particle diameter of described Nano Silver is 1-100nm.The molecular formula of described carrier nano silver antibacterial material is Al
2ag
x(Si
2o
5) (OH)
4, x=0.001-2.62 wherein.
The present invention also provides the preparation method of described carrier nano silver antibacterial material, comprises the steps:
(1) dimethyl sulfoxide (DMSO) (DOSO) solution that is 1%-100% by 1-100g kaolin and 10-1000ml quality percentage composition mixes and stirs 24-72 hour, forms kaolin/dimethyl sulfoxide compound; Afterwards, adopt pure water washed twice, organic solvent washing once, to remove impurity and unnecessary methyl-sulfoxide, described organic solvent can be a kind of in methyl alcohol, ethanol; By the kaolin/dimethyl sulfoxide compound after washing, as for drying in baking oven, the temperature in baking oven is 40-90 ℃.In the present embodiment, baking time is 10 hours.
(2) the kaolin/dimethyl sulfoxide compound after drying is mixed and is stirred with the mass ratio of surfactant with 200:1-2:1, surfactant can be in cation, anion and non-ionic surface active agent any one, two or more; Afterwards, in every 1-100g kaolin/dimethyl sulfoxide compound, add the ratio of the silver ammino solution that 10-1000ml concentration is 0.001-1mol/L and add a certain amount of silver ammino solution, again stir 24-48 hour.Described surfactant mainly plays the effect of following two aspects: on the one hand, improve the dispersiveness of silver ammino solution, thereby occur while preventing reducing nano-silver to reunite, form precipitation; On the other hand, to kaolinic peptizaiton, can improve kaolinic specific surface area, thereby increase silver-colored amino molecule, enter the possibility between crystal layer.In the present embodiment, surfactant be selected from calgon, softex kw, polyvinyl alcohol, lauryl sodium sulfate, sodium phosphate trimer, polyvinylpyrrolidone, sodium lignin sulfonate and sodium silicate any one, two or more.
(3) by silver ammino solution molecule between kaolin crystal layer or edge in-situ reducing be Nano Silver: using method is a kind of in hydrothermal reduction method, photo-reduction.
Hydrothermal reduction method: the ratio that is 0.3-10 according to the mol ratio of silver ammino solution and reductant in the solution after processing to step (2) adds reductant and continues stirring, described reductant be selected from hydrazine hydrate, glucose, vitamin C, aldehyde compound, triethanolamine and sodium borohydride a kind of, two or more; Afterwards, carry out reduction reaction at 50-100 ℃, the reduction reaction time is controlled at 18-48 hour.Dilution shows by UV spectrophotometer measuring, in Nano Silver/kaolin intercalation compound that hydrothermal reduction method makes Nano Silver concentration be do not add the Nano Silver concentration that reductant Direct Hydrothermal method obtains 15-20 doubly.In hydrothermal reduction process, the interpolation of reductant can improve the conversion ratio of Nano Silver.
The above-mentioned reductant Direct Hydrothermal method that do not add, does not add above-mentioned reductant and other parameters all in the situation identical with hydrothermal reduction method, by the silver ionized water thermal reduction in silver ammino solution, is directly Nano Silver.
Photo-reduction: add protectant with the mol ratio of 1:10-10:1 according to silver ammino solution and protectant, with ultraviolet excitation photoelectron reduction silver ammino solution, ultraviolet wavelength is between 250nm-400nm, and catalysis time is 6-72h, can obtain Nano Silver/kaolin intercalation compound; After dilution, by UV spectrophotometer measuring, show, in the Nano Silver/kaolin intercalation compound obtaining by photo-reduction Nano Silver concentration be do not add the Nano Silver in reductant Direct Hydrothermal method 9-20 doubly, and Nano Silver concentration no longer increases after ultraviolet catalytic enough time, show to reach capacity reducing state.Described protectant can be one or both in polyethylene glycol, polypropylene glycol, ethylene glycol, sorbierite, sodium citrate, polyvinylpyrrolidone (PVP), carboxymethyl cellulose, calgon.Above-mentioned protectant effect: a. can prevent from producing and reuniting in Nano Silver reduction process, and augmenting response area, promotes reaction to carry out thoroughly simultaneously; B. dispersed kaolin.In photo catalytic reduction process, the prolongation of ultraviolet lighting time can improve the conversion ratio of Nano Silver.
After reduction reaction, kaolin still keeps 1:1 type dioctahedron phyllosilicate structure, because the entering of silver ion and Nano Silver, more than strutting 3nm by 0.716nm between crystal layer.Shown in Figure 1, through XRD diffraction, prove, original kaolin still keeps crystal formation, and chemical composition is constant.
Adopt the carry out antibacterial test of GB GBT21510-2008 to described carrier nano silver antibacterial material, mainly comprise the steps:
(1) choose Escherichia coli and staphylococcus aureus as detecting bacterial classification, get described carrier nano silver antibacterial material 0.45-0.55g, the Tween-80 solution that adds 95ml0.1%, after mixing, add 5ml bacteria suspension, drawing 1ml is inoculated in sterilizing plate, pour into 45 ℃-55 ℃ nutrition fine jade base medium, after Qiong Ji solidifies, be placed at 37 ℃ in insulating box, do colony counting.Check sample is used white carbon also to handle successively.
(2) vessel are placed on shaking table, 1-4h vibrates under 37 ℃, the rotating speed of 150r/min; Then extract 1ml and be inoculated in sterilizing plate, pour into 45 ℃-55 ℃ nutrition fine jade base medium, after Qiong Ji solidifies, be placed at 37 ℃ in insulating box, after 46-48h, do colony counting.
(3) according to GB regulation antibiotic rate formula, calculate antibiotic rate R.
The anti-bacterial result shows, the killing rate of Escherichia coli, staphylococcus aureus is all greater than to 99.99%, far away higher than 90% of GB regulation.
Carrier nano silver antibacterial material of the present invention can for the preparation of or coating medical, industrial and life antimicrobial product, described antimicrobial product relies on carrier nano silver antibacterial material and has respective performances.In described antimicrobial product, contain 0.3%-5% weight ratio, particle diameter is the carrier nano silver antibacterial material of 1-50 micron.
Described antimicrobial product is the ceramic glaze with this carrier nano silver antibacterial material, coating, film, plastics, dye well fiber etc.Described ceramic glaze can manufacture ceramic, case of electronic device etc.Described plastics can manufacture tableware, PP material chopping board, ABS material bus handrail and seat, PE material sticking film for mobile phone, case of electronic device, Medical Devices and medical supplies etc.Described fiber can create textile, knitting, as socks etc.
Described antimicrobial product can make by the following method: it is 1-50 micron that the carrier nano silver antibacterial material making is ground to particle diameter, according to 0.3%-5% weight ratio, adds in application, and application can be ceramic glaze, coating, plastics, dyestuff etc.
Application is covered in to product surface or makes an addition in product composition, method can be for being evenly mixed in application by carrier nano silver antibacterial material, then plastic products adopt the modes such as spraying, pouring, immersion to impose on product surface, if also can adopt blend or with the mode of master batch coextrusion, the carrier nano silver antibacterial material after grinding evenly be sneaked in product.
Embodiment 1
50g kaolin is added in the DOSO solution that 500ml quality percentage composition is 60%, stirs 24h, after taking-up, it is carried out at 70 ℃, drying after twice pure water, a methanol wash, obtain kaolin/dimethyl sulfoxide compound; 1g sodium phosphate trimer is dissolved in the 80ml aqueous solution, in the aqueous solution, pours the kaolin/dimethyl sulfoxide composite powder after oven dry into and stir; In the aqueous solution, slowly pour 500ml0.1mol/L silver ammino solution into and stir 24h again; In the above-mentioned aqueous solution, add sodium borohydride 5ml, make its hydrothermal reduction 2h at 70 ℃, make carrier nano silver antibacterial material, and dry for standby.
The baking oven that 1g oil paint is put into 80 ℃ toasts 2h, after taking-up, calculate dry-wet weight ratios example, weight ratio according to 2.5% is added carrier nano silver antibacterial material in oil paint to, stirs, after adding respectively thinner and curing agent and stir according to construction ratio before construction; Afterwards, adopt GB HG/T3950-2007 < < antibiotic paint > >) detect, record the above-mentioned antibiotic rate that is added with the coating of carrier nano silver antibacterial material and reach 99%.
Embodiment 2
100g kaolin is added in the DOSO solution 1000ml that quality percentage composition is 100%, stir 72h, after taking-up, it is carried out at 90 ℃, drying after twice pure water, an ethanol washing, obtain kaolin/dimethyl sulfoxide compound; 50g sodium phosphate trimer is poured into the kaolin/dimethyl sulfoxide composite powder after oven dry and stirred; Slowly pour again 1000ml1mol/L silver ammino solution into and stir 48h; The mol ratio that is 1:10 according to silver-colored ammonia and glucose is added glucose to above-mentioned mixed solution, makes its hydrothermal reduction 48h at 100 ℃, makes carrier nano silver antibacterial material, and dry for standby.
It is below 50 microns that carrier nano silver antibacterial material is worked into particle diameter, with 5% weight ratio, adds in socks dyestuff, stirs 20 minutes, then socks is dyeed; Adopt GB FZ/T73023-2006 to detect and show, after 50 washings, the antibiotic rate of the socks after above-mentioned dyeing is processed is still more than 99%.
Embodiment 3
1g kaolin is added in the DOSO solution that 10ml quality percentage composition is 3%, stirs 24h, after taking-up, it is carried out at 50 ℃, drying after twice pure water, a methanol wash, obtain kaolin/dimethyl sulfoxide compound; 0.1gPVP is poured into the kaolin/dimethyl sulfoxide composite powder after oven dry and stirs; Slowly pour again 15ml 0.005mol/L silver ammino solution into and stir 24h; The mol ratio that silver-colored ammonia and hydrazine hydrate be 1:0.5 of take in above-mentioned mixed solution is added hydrazine hydrate, makes its hydrothermal reduction 20h at 50 ℃, makes carrier nano silver antibacterial material, and dry for standby.
Carrier nano silver antibacterial material is worked into particle diameter below 50 microns, and 0.5% weight ratio joins in powdered frit, to the glazing of china bowl biscuit, and burns till at 1200 ℃.Adopt GB JC/T897-2002 to detect and show, the antibiotic rate of described china bowl element reaches 91%.
Embodiment 4
3g kaolin is added in the DOSO solution that 25ml quality percentage composition is 1%, stirs 24h, after taking-up, it is carried out at 45 ℃, drying after twice pure water, a methanol wash, obtain kaolin/dimethyl sulfoxide compound; 0.015g calgon is poured into the kaolin/dimethyl sulfoxide composite powder after oven dry and stirred; Slowly pour again the silver ammino solution of 12ml0.01mol/L into and stir 24h; In above-mentioned mixed solution, add the carboxymethyl cellulose of silver ammino solution mole 1/5 mole after it stirs, use the uviol lamp of 256nm wavelength to irradiate after 6h it, make carrier nano silver antibacterial material, and dry for standby.
According to 0.3% weight ratio, add in plastics, implementation can be injection moulding and extrude; Afterwards, adopt GB QB/T2591-2003 to detect and show, described plastics antibiotic rate reaches 93%.
Embodiment 5
100g kaolin is added in the DOSO solution that 1000ml quality percentage composition is 90%, stirs 72h, after taking-up, it is carried out at 90 ℃, drying after twice pure water, a methanol wash, obtain kaolin/dimethyl sulfoxide compound; 50g calgon is dissolved in the 200ml aqueous solution, and pours the kaolin/dimethyl sulfoxide composite powder after oven dry into and stir; Slowly pour again the silver ammino solution of 1000ml 0.01mol/L into and stir 48h; In above-mentioned mixed solution, add the sodium citrate of 10 times of moles of silver ammino solution mole after it stirs, use the uviol lamp of 365nm wavelength to irradiate after 71h it, make carrier nano silver antibacterial material, and dry for standby.
According to 5% weight ratio, add in powdered frit, to the glazing of high ceramic whiteware bowl biscuit, and burn till at 1250 ℃.Afterwards, adopt GB JC/T897-2002 to detect and show, the antibiotic rate of described high ceramic whiteware bowl element reaches more than 99%.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a carrier nano silver antibacterial material, is characterized in that: this carrier nano silver antibacterial material contains kaolin and Nano Silver, and part Nano Silver is embedded between kaolin crystal layer, and the content of described Nano Silver is 0.01-10mol/kg.
2. carrier nano silver antibacterial material as claimed in claim 1, is characterized in that: the molecular formula of described carrier nano silver antibacterial material is Al
2ag
x(Si
2o
5) (OH)
4, x=0.001-2.62 wherein.
3. carrier nano silver antibacterial material as claimed in claim 1, is characterized in that: described carrier nano silver antibacterial material is greater than 99.99% to the killing rate of Escherichia coli or staphylococcus aureus.
4. containing just like the antimicrobial product of the carrier nano silver antibacterial material described in any one in claim 1-3, it is characterized in that: in described antimicrobial product, contain 0.3%-5% weight ratio, particle diameter is the carrier nano silver antibacterial material of 1-50 micron.
5. antimicrobial product as claimed in claim 4, is characterized in that: described antimicrobial product is ceramic glaze, coating, film, plastics, dyestuff or fiber; Or ceramic, the case of electronic device for described ceramic glaze, made; Or the tableware of making for described plastics, PP material chopping board, ABS material bus handrail and seat, PE material sticking film for mobile phone, case of electronic device, Medical Devices or medical supplies; Or textile, the knitting for described fiber, made.
6. a method for carrier nano silver antibacterial material, comprises the steps:
Kaolin is mixed with dimethyl sulphoxide solution, obtain kaolin/dimethyl sulfoxide compound;
By described kaolin/dimethyl sulfoxide compound and surfactant with the quality of 200:1-2:1 than mix and blend, and add silver ammino solution, obtain silver-colored ammonia mixed liquor;
Adopt photo-reduction that the silver ammino solution molecule in silver-colored ammonia mixed liquor is reduced to Nano Silver, make carrier nano silver antibacterial material, in described carrier nano silver antibacterial material, the content of Nano Silver is 0.01-10mol/kg.
7. the preparation method of carrier nano silver antibacterial material as claimed in claim 6, it is characterized in that: photo-reduction is specifically realized by the following method: silver-colored ammonia mixed liquor is placed under the ultraviolet light between 250-420nm, photocatalysis 6-72h, obtains Nano Silver/kaolin intercalation compound.
8. the preparation method of carrier nano silver antibacterial material as claimed in claim 7; it is characterized in that: before described photo-reduction is also included in ultraviolet catalytic processing; in silver-colored ammonia mixed liquor, add protectant, described protectant is selected from one or both in polyethylene glycol, polypropylene glycol, ethylene glycol, sorbierite, sodium citrate, polyvinylpyrrolidone (PVP), carboxymethyl cellulose, calgon.
9. the preparation method of carrier nano silver antibacterial material as claimed in claim 8, is characterized in that: described protectant adds according to the mol ratio of silver ammino solution and protectant 1:10-10:1.
10. the preparation method of carrier nano silver antibacterial material as claimed in claim 9, it is characterized in that: adopt hydrothermal reduction method to substitute described employing photo-reduction, specifically realize in the following way: to the ratio that is 0.3-10 according to the mol ratio of silver ammino solution and reductant in silver-colored ammonia mixed liquor, add reductant, afterwards, at 50-100 ℃, carry out reduction reaction.
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|---|---|---|---|
| CN201410274036.9A CN104012574A (en) | 2014-06-18 | 2014-06-18 | Carrier nano-silver antibacterial material, preparation method thereof and antibacterial product and preparation method thereof |
| PCT/CN2014/092556 WO2015192605A1 (en) | 2014-06-18 | 2014-11-28 | Carrier nano-silver antibacterial material and preparation method therefor, and antibacterial product and preparation method therefor |
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| CN201410274036.9A CN104012574A (en) | 2014-06-18 | 2014-06-18 | Carrier nano-silver antibacterial material, preparation method thereof and antibacterial product and preparation method thereof |
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| WO2015192676A1 (en) * | 2014-06-18 | 2015-12-23 | 陈文旻 | Antibacterial coating and preparation method therefor |
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| CN104857551A (en) * | 2015-06-18 | 2015-08-26 | 中国医学科学院生物医学工程研究所 | Silver-bearing ntimicrobial dressing and preparation method thereof |
| CN108160991A (en) * | 2018-01-11 | 2018-06-15 | 中国矿业大学 | Antibacterial composite granule, antibacterial functionalized composite material and preparation method |
| CN110526255A (en) * | 2019-09-29 | 2019-12-03 | 福州大学 | A method of dickite/nano-ag composite is prepared using intercalation |
| CN111086208A (en) * | 2019-12-23 | 2020-05-01 | 齐鲁理工学院 | Method for preparing high molecular bacteriostatic material |
| CN111559926A (en) * | 2020-07-15 | 2020-08-21 | 广东蒲公英新型材料有限公司 | Antibacterial material based on silicate-based surface and preparation method thereof |
| CN114264805A (en) * | 2021-12-06 | 2022-04-01 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method of SERS enhancement-based probe, product and application thereof |
| CN116262668A (en) * | 2021-12-15 | 2023-06-16 | 泉州市德化县恒峰陶瓷有限公司 | Preparation process of antibacterial high-strength ceramic |
| CN115366512A (en) * | 2022-08-08 | 2022-11-22 | 浙江亚厦装饰股份有限公司 | Preparation method of high-hardness antibacterial wood plastic |
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