CN104017409B - Antibacterial coating and preparation method thereof - Google Patents
Antibacterial coating and preparation method thereof Download PDFInfo
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- CN104017409B CN104017409B CN201410274015.7A CN201410274015A CN104017409B CN 104017409 B CN104017409 B CN 104017409B CN 201410274015 A CN201410274015 A CN 201410274015A CN 104017409 B CN104017409 B CN 104017409B
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- Prior art keywords
- kaolin
- bacteria agent
- nanometer silver
- zinc oxide
- silver
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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
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/08—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing solids as carriers or diluents
-
- 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
-
- 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
Abstract
The invention provides an antibacterial coating which comprises a nano silver/ kaolin antibacterial agent and a zinc oxide/kaolin antibacterial agent, wherein a weight ratio of the nano silver/ kaolin antibacterial agent to the zinc oxide/kaolin antibacterial agent is 0-1. The invention also provides a method for preparing the antibacterial coating.
Description
Technical field
The present invention relates to a kind of coating, more particularly, to a kind of antibiotic paint and preparation method thereof.
Background technology
In recent years, with the mankind's clean raising requiring to institute's living environment, market is to the demand from antibiotic paint
Become the common recognition of knowledgeable people.Directly to add nanometer silver and/or titanium dioxide more than antibiotic paint in the market, to reach
Antibacterial effect.But nanometer silver is not sufficiently stable in coating, is susceptible to reunite, and disperses not uniform.Additionally, but nano-silica
Change the addition of titanium, it is possible to create Strong oxdiative group, destroy coating resin, reduce the life-span of coating.
Content of the invention
In order to overcome above-mentioned technical problem, the present invention provides a kind of antibiotic paint.In addition, a kind of present invention also offers institute
State the preparation method of antibiotic paint.
A kind of antibiotic paint, including nanometer silver/kaolin anti-bacteria agent, zinc oxide/kaolin anti-bacteria agent, wherein, nanometer silver/
Kaolin anti-bacteria agent and zinc oxide/kaolin anti-bacteria agent weight between the two is than for 0-1.
Preferably, described nanometer silver/kaolin anti-bacteria agent contains containing Kaolin and nanometer silver, and part nanometer silver is embedded in height
Between the soil crystal layer of ridge, kaolin crystal edge is also loaded with nanometer silver.
It is highly preferred that the molecular formula of described carrier nano silver antibacterial material is Al2AgX(Si2O5)(OH)4, wherein x=
0.001-2.62.
It is highly preferred that the content of described nanometer silver is 0.01-10mol/kg.
Preferably, this zinc oxide/kaolin anti-bacteria agent contains Kaolin, zinc oxide, and described zinc oxide is supported on Kaolin
On.
It is highly preferred that the molecular formula of described zinc oxide/kaolin anti-bacteria agent is Al2(Si2O5)(ZnO)x(OH)4, wherein x=
0.002-2.62.
Preferably, paint, described nanometer silver/kaolin anti-bacteria agent and zinc oxide/Kaolin are also contained in this antibiotic paint
Antibacterial gross weight is the 0.1%-5% of paint solid content.
A kind of preparation method of antibiotic paint, comprises the steps：Prepare zinc oxide/kaolin anti-bacteria agent；Preparation nanometer
Silver/kaolin anti-bacteria agent；By nanometer silver/kaolin anti-bacteria agent and zinc oxide/kaolin anti-bacteria agent mixing, and add to paint
In, stir the described antibiotic paint of acquisition.
Preferably, the preparation of described nanometer silver/kaolin anti-bacteria agent comprises the steps：By Kaolin and dimethyl sulfoxide
Solution mixes, and obtains kaolin/dimethyl sulfoxide complex；By described kaolin/dimethyl sulfoxide complex and surface activity
Agent is with 200:1-2:1 quality is than mix and blend, and adds silver ammino solution, obtains silver-colored ammonia mixed liquor；Using photo-reduction
Silver ammino solution molecule in silver-colored ammonia mixed liquor is reduced to nanometer silver, prepared carrier nano silver antibacterial material, described carrier nanometer
In silver-colored anti-biotic material, the content of nanometer silver is 0.01-10mol/kg.
It is highly preferred that described photo-reduction is realized especially by following method：Silver-colored ammonia mixed liquor is placed at 250-
Under ultraviolet light between 420nm, photocatalysis 6-72h, obtain nanometer silver/kaolin intercalation compound.
Compared to prior art, the invention has the advantages that：
1. the compatibility is good：The present invention utilizes Kaolin inherently to have with coating raw material (paint, cosolvent, firming agent etc.)
There is the principle of the good compatibility, nanometer silver/kaolin anti-bacteria agent is prepared for carrier using Kaolin, zinc oxide/Kaolin resists
Microbial inoculum, substantially increases the compatibility of described two antibacterial and coating raw material.
2. uniformly dispersed：By load on the kaolin, nanometer silver and zinc oxide is made can be uniformly dispersed in coating.
3. adopt photo-reduction or hydrothermal reduction method, Kaolin crystal layer will be embedded in and be supported on kaolin crystal side
The silver ion reduction of edge is nanometer silver, greatly increases the conversion ratio that silver ion is converted into nanometer silver, and then improves described
In carrier nano silver antibacterial material the concentration (being 9-20 times of the nanometer silver being not added with reducing agent Direct Hydrothermal method) of nanometer silver with
Antibacterial effect.So, in the case that other conditions are constant, reduce the consumption of nanometer silver/kaolin anti-bacteria agent in antibiotic paint,
Antibiotic paint still can be made to have good antibiotic property.
5. because nanometer silver/kaolin anti-bacteria agent is in dark color, even black, described zinc oxide/kaolin anti-bacteria agent
Interpolation can make the adjustable color of antibiotic paint more rich and varied, also do not interfere with the antibiotic property of antibiotic paint simultaneously.
6. nanometer silver/kaolin anti-bacteria agent, the interpolation of zinc oxide/kaolin anti-bacteria agent, other performances to antibiotic paint
(such as：Service life, cracking resistance degeneration etc.) have no adverse effect.
Brief description
Accompanying drawing constitutes the part of this specification, is used to help further understand the present invention.These accompanying drawings illustrate this
Some bright embodiments, and be used for the principle of the present invention is described together with description.In accompanying drawing：
Fig. 1 illustrates the XRD diffraction pattern of the nanometer silver/kaolin anti-bacteria agent according to an embodiment of the invention；Its
In, 1 is Kaolin XRD diffracting spectrum, and 2 is the XRD diffracting spectrum of nanometer silver/kaolin anti-bacteria agent.
Specific embodiment
It is explained with reference to the specific embodiment of the present invention below in conjunction with specific embodiment disease.
The present invention provides a kind of antibiotic paint, and it includes nanometer silver/kaolin anti-bacteria agent, zinc oxide/kaolin anti-bacteria agent,
Wherein, nanometer silver/kaolin anti-bacteria agent and zinc oxide/kaolin anti-bacteria agent weight between the two is than for 0-1.
Preferably, paint, firming agent and water/diluent are also contained in this antibiotic paint.
Described nanometer silver/kaolin anti-bacteria agent and zinc oxide/kaolin anti-bacteria agent gross weight are paint solid content
0.1%-5%.
Described nanometer silver/kaolin anti-bacteria agent, it is nanometer silver/kaolin intercalation complex.This nanometer silver/Kaolin resists
Microbial inoculum contains Kaolin, nanometer silver and silver ion.Described nanometer silver, silver ion load on the kaolin.Described Kaolin is 1:1
Type dioctahedron layered silicate structure, part nanometer silver, silver ion are embedded between Kaolin crystal layer, and kaolin crystal side
Edge is also loaded with nanometer silver and silver ion, and the spacing between described Kaolin two-phase vincial faces layer is 1-5nm, the containing of described nanometer silver
Measure as 0.01-10mol/kg, the particle diameter of described nanometer silver is 1-100nm.The molecular formula of described nanometer silver/kaolin anti-bacteria agent is
Al2AgX(Si2O5)(OH)4, wherein x=0.001-2.62.
Described zinc oxide/kaolin anti-bacteria agent, it is zinc oxide/kaolin intercalation complex.This zinc oxide/Kaolin resists
Microbial inoculum contains Kaolin, zinc oxide, and described zinc oxide loads on the kaolin.Described Kaolin is 1:1 type dioctahedron stratiform
Silicate sturcture, partial oxidation zinc is embedded between Kaolin crystal layer, and kaolin crystal edge is also loaded with zinc oxide molecules.
Spacing between described Kaolin two-phase vincial faces layer is 1-5nm, and the content of described zinc oxide is 0.01-10mol/kg, described oxygen
The particle diameter changing zinc is 1-100nm.The molecular formula of described zinc oxide/kaolin anti-bacteria agent is Al2(Si2O5)(ZnO)x(OH)4, wherein
X=0.002-2.62.
Present invention also offers the preparation method of described nanometer silver/kaolin anti-bacteria agent, comprise the steps：
The first step, prepares zinc oxide/kaolin anti-bacteria agent：
(1) dimethyl sulfoxide (DOSO) for 1%-100% by 1-100g Kaolin and 10-1000ml weight/mass percentage composition
Solution is mixed and stirred for 24-72 hour, forms kaolin/dimethyl sulfoxide complex；Afterwards, using pure water twice, have
Machine solvent washed once, and to remove the removal of impurity and unnecessary dimethyl sulfoxide, described organic solvent can be one of methanol, ethanol；
Kaolin/dimethyl sulfoxide complex after washing is dried as in baking oven, the temperature in baking oven is 40-90 DEG C.This enforcement
In example, baking time is 10 hours.
(2) by kaolin/dimethyl sulfoxide complex and surfactant after drying with 200:1-2:1 mass ratio mixes
Merging stirs, surfactant can be in cation, anion and nonionic surfactant any one, two kinds
Or it is two or more；Afterwards, adding 10-1000ml concentration by every 1-100g kaolin/dimethyl sulfoxide complex is 0.001-
1mol/L zinc solution, is again stirring for 24-48 hour.
Described surfactant primarily serves following both sides effect：On the one hand, improve the dispersibility of zinc solution, prevent
Only occur during reduced nano zinc oxide to reunite thus forming precipitation；On the other hand, to kaolinic peptizaiton, can improve
Kaolinic specific surface area, thus increase Zn+Enter the probability between crystal layer.In the present embodiment, surfactant is selected from six
Polymeric sodium metaphosphate., cetyl trimethylammonium bromide, polyvinyl alcohol, sodium lauryl sulphate, sodium tripolyphosphate, polyvinylpyrrolidine
In ketone, sodium lignin sulfonate and sodium silicate any one, two or more.
Described zinc salt is selected from Zinc diacetate dihydrate, Zinc vitriol, zinc nitrate hexahydrate, zinc chloride, two hydration grass
At least one in sour zinc and zinc hydroxide.
(3) mol ratio according to displacer and zinc salt is 0:1-5:1 ratio, adds in the solution in step (2) and puts
Change agent and continue stirring until being uniformly dissolved；Then react 15min-12h under conditions of being placed on 70 DEG C -800 DEG C, reaction finishes
Obtain zinc oxide antibacterial afterwards.Described displacer is NaOH, and when such as zinc salt is zinc hydroxide, displacer usage amount can be 0.
Using GB GBT21510-2008, the antibacterial test that carries out of described zinc oxide/kaolin anti-bacteria agent is shown, oxidation
Zinc/kaolin anti-bacteria agent is all higher than 99.99% to the killing rate of escherichia coli or staphylococcus aureuses, significantly larger than GB rule
Fixed 90%.
Second step, prepares nanometer silver/kaolin anti-bacteria agent：
(1) dimethyl sulfoxide (DOSO) for 1%-100% by 1-100g Kaolin and 10-1000ml weight/mass percentage composition
Solution is mixed and stirred for 24-72 hour, forms kaolin/dimethyl sulfoxide complex；Afterwards, using pure water twice, have
Machine solvent washed once, and to remove the removal of impurity and unnecessary dimethyl sulfoxide, described organic solvent can be one of methanol, ethanol；
Kaolin/dimethyl sulfoxide complex after washing is dried as in baking oven, the temperature in baking oven is 40-90 DEG C.This enforcement
In example, baking time is 10 hours.
(2) by kaolin/dimethyl sulfoxide complex and surfactant after drying with 200:1-2:1 mass ratio mixes
Merging stirs, surfactant can be in cation, anion and nonionic surfactant any one, two kinds
Or it is two or more；Afterwards, adding 10-1000ml concentration by every 1-100g kaolin/dimethyl sulfoxide complex is 0.001-
The ratio of the silver ammino solution of 1mol/L adds a certain amount of silver ammino solution, is again stirring for 24-48 hour.Described surfactant master
Play following both sides effect：On the one hand, improve silver ammino solution dispersibility, prevent during reducing nano-silver occur reunite from
And form precipitation；On the other hand, to kaolinic peptizaiton, kaolinic specific surface area can be improved, thus increasing silver
Amino molecule enters the probability between crystal layer.In the present embodiment, surfactant is selected from sodium hexameta phosphate, cetyl trimethyl
Ammonium bromide, polyvinyl alcohol, sodium lauryl sulphate, sodium tripolyphosphate, Polyvinylpyrrolidone, sodium lignin sulfonate and sodium silicate
In any one, two or more.
(3) by silver ammino solution molecule, between Kaolin crystal layer or edge in-situ reducing is nanometer silver：Using method is hydro-thermal
One of reducing process, photo-reduction.
Hydrothermal reduction method：In solution after processing to step (2), the mol ratio according to silver ammino solution and reducing agent is 0.3-
10 ratio adds reducing agent simultaneously to continue to stir, described reducing agent be selected from hydrazine hydrate, glucose, vitamin C, aldehyde compound,
One of triethanolamine and sodium borohydride, two or more；Afterwards, carry out reduction reaction at 50-100 DEG C, reduction
Response time controls in 18-48 hour.Show through UV spectrophotometer measuring after dilution, the nanometer that hydrothermal reduction method is obtained
In silver/kaolin intercalation compound, nanometer silver concentration is the 15-20 of the nanometer silver concentration being not added with the acquisition of reducing agent Direct Hydrothermal method
Times.During hydrothermal reduction, the interpolation of reducing agent can improve the conversion ratio of nanometer silver.
Above-mentioned be not added with reducing agent Direct Hydrothermal method, that is, without above-mentioned reducing agent and other specification all with hydrothermal reduction method
In the case of identical, directly by the silver ionized water thermal reduction in silver ammino solution be nanometer silver.
Photo-reduction：According to silver ammino solution and protective agent with 1:10-10:1 mol ratio adds protective agent, with ultraviolet
Phot-luminescence electron reduction silver ammino solution, between 250nm-400nm, catalysis time is 6-72h to ultraviolet wavelength, you can obtain
Nanometer silver/kaolin intercalation compound；Shown by UV spectrophotometer measuring after dilution, obtained by photo-reduction
Nanometer silver/kaolin intercalation compound in nanometer silver concentration be the nanometer silver being not added with reducing agent Direct Hydrothermal method 9-20
Times, and after ultraviolet catalytic enough time, nanometer silver concentration no longer increases, and shows the reducing condition that reached capacity.Described guarantor
Shield agent can be Polyethylene Glycol, polypropylene glycol, ethylene glycol, Sorbitol, sodium citrate, Polyvinylpyrrolidone, carboxymethyl cellulose
Element, one of sodium hexameta phosphate or two kinds.Above-mentioned protectant effect：A. the group of generation in nanometer silver recovery can be prevented
Poly-, increase response area simultaneously, promote reaction to carry out thoroughly；B. dispersed kaolin.During photo catalytic reduction, during ultraviolet lighting
Between prolongation can improve the conversion ratio of nanometer silver.
After reduction reaction, Kaolin still keeps 1:1 type dioctahedron layered silicate structure, because silver ion and nanometer
The entrance of silver, struts more than 3nm by 0.716nm between crystal layer.Shown in Figure 1, prove through XRD diffraction, original Kaolin
Still keep crystal formation, chemical composition is constant.
Using GB GBT21510-2008, the antibacterial test that carries out of described nanometer silver/kaolin anti-bacteria agent is shown, nanometer
Silver/kaolin anti-bacteria agent is all higher than 99.99% to the killing rate of escherichia coli or staphylococcus aureuses, significantly larger than GB rule
Fixed 90%.
It should be understood that can reversed order according to actual needs between the above-mentioned first step and second step.
3rd step：By nanometer silver/kaolin anti-bacteria agent and zinc oxide/kaolin anti-bacteria agent mixing, prepare antibiotic paint：
Nanometer silver/kaolin anti-bacteria agent and zinc oxide/kaolin anti-bacteria agent ratio between two are mixed all according to the ratio of 0-1
Even, it is ground to granularity<90 μm, dry and must mix antibacterial；Weigh and treat mixed paint sample 1g, dry in the environment of 105 DEG C
1h, then takes out and weighs, and calculates solid content ratio；Weigh and will be multiplied by solid content ratio, according still further to paint using the amount of paint
The ratio of the 0.1%-5% of solid content adds mixing antibacterial in paint, and stirring and evenly mixing, that is, obtain antibiotic paint.Enter one
Step ground, also can add firming agent and the water/diluent of construction ratio in paint, and stir.
Embodiment 1
By 1g Kaolin and DMSO solution that 10ml mass percent is 1%, mix and blend 24h.Afterwards, washed using pure water
Wash twice, methanol washed once, at 40 DEG C dry.By the kaolin/dimethyl sulfoxide complex after drying and dodecyl
Sodium sulfate is with 200:1 mass ratio is mixed and stirred for uniformly, and interpolation 10ml concentration is 0.001mol/L zinc ammonia solution, is again stirring for
24 hours.Add NaOH according to the mol ratio 1 with zinc salt：1 continues to stir.12 hours at 70 DEG C, it is oxidation after taking-up
Zinc antibacterial.
1g Kaolin is added in the DOSO solution being 3% to 10ml weight/mass percentage composition, stirs 24h, to it after taking-up
Carry out pure water, a methanol twice to dry at 50 DEG C after washing, obtain kaolin/dimethyl sulfoxide complex；By 0.1g
PVP pours the kaolin/dimethyl sulfoxide composite powder after drying into and stirs；Slowly pour 15ml0.005mol/L again into
Silver ammino solution simultaneously stirs 24h；With silver-colored ammonia and hydrazine hydrate for 1 in above-mentioned mixed solution：0.5 mol ratio adds hydrazine hydrate, makes
Its hydrothermal reduction 20h at 50 DEG C, prepared nanometer silver/kaolin anti-bacteria agent, and dry for standby.
Nano silver antimicrobials and zinc oxide antibacterial are mixed as mixing antibacterial according to 0.1% ratio, mixing is anti-
Microbial inoculum is added in paint according to 5% ratio, mixes under the assistance of blender.
Embodiment 2
By 100g Kaolin and DMSO solution that 1000ml mass percent is 100%, stir 72h, after taking-up, it is entered
Dry at 90 DEG C after capable pure water twice, a washing with alcohol, obtain kaolin/dimethyl sulfoxide complex；After drying
Kaolin/dimethyl sulfoxide complex and sodium tripolyphosphate are with 2:1 mass ratio is mixed and stirred for uniformly；Add 1000ml concentration
For 1mol/L zinc nitrate hexahydrate solution, it is again stirring for 24 hours, by NaOH and zinc salt according to 5：1 mol ratio is added, 800 DEG C of rings
15min in border, is zinc oxide antibacterial after taking-up.
100g Kaolin interpolation weight/mass percentage composition is in 100% DOSO solution 1000ml, stirs 72h, after taking-up
It is carried out twice pure water, dry at 90 DEG C after a washing with alcohol, obtain kaolin/dimethyl sulfoxide complex；By 50g
Sodium tripolyphosphate is poured the kaolin/dimethyl sulfoxide composite powder after drying into and is stirred；Slowly pour into again
1000ml1mol/L silver ammino solution simultaneously stirs 48h；It is 1 according to silver-colored ammonia and glucose：It is extremely above-mentioned that 10 mol ratio adds glucose
In mixed solution so as at 100 DEG C hydrothermal reduction 48h, prepared nanometer silver/kaolin anti-bacteria agent, and dry for standby.
Nano silver antimicrobials and zinc oxide antibacterial are mixed as mixing antibacterial according to 5% ratio, antibacterial will be mixed
Agent is added in paint according to 0.1% ratio, mixes under the assistance of blender.
Embodiment 3
By 50g Kaolin and DMSO solution that 500ml mass percent is 50%, stir 48h, after taking-up, two are carried out to it
Dry at 70 DEG C after secondary pure water, a methanol washing, obtain kaolin/dimethyl sulfoxide complex；By the kaolinite after drying
Soil/dimethylsulfide complex and sodium hexameta phosphate are with 100:1 mass ratio is mixed and stirred for uniformly；Adding 500ml concentration is
0.5mol/L sodium hydroxide solution, is again stirring for 36 hours, puts into 7h in 600 DEG C of environment, is zinc oxide antibacterial after taking-up.
50g Kaolin is added in the DOSO solution being 60% to 500ml weight/mass percentage composition, stirs 24h, right after taking-up
It carries out pure water, a methanol twice dries after washing at 70 DEG C, obtains kaolin/dimethyl sulfoxide complex；By 1g tri-
Polyphosphate sodium is dissolved in 80ml aqueous solution, pours the kaolin/dimethyl sulfoxide composite powder after drying into simultaneously in aqueous solution
Stir；Slowly pour 500ml0.1mol/L silver ammino solution again into and stir 24h in aqueous solution；Above-mentioned aqueous solution adds
Enter sodium borohydride 5ml so as at 70 DEG C hydrothermal reduction 2h, prepared nanometer silver/kaolin anti-bacteria agent, and dry for standby.
Nano silver antimicrobials and zinc oxide antibacterial are mixed as mixing antibacterial according to 2.5% ratio, mixing is anti-
Microbial inoculum is added in paint according to 2.5% ratio, mixes under the assistance of blender.
Particular embodiments described above, has carried out detailed further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail bright, be should be understood that the specific embodiment that the foregoing is only the present invention, be not limited to the present invention, all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvement done etc., should be included in the guarantor of the present invention
Within the scope of shield.
Claims (3)
1. a kind of preparation method of antibiotic paint, this antibiotic paint includes nanometer silver/kaolin anti-bacteria agent, zinc oxide/Kaolin
Antibacterial, wherein, nanometer silver/kaolin anti-bacteria agent and zinc oxide/kaolin anti-bacteria agent weight between the two is than for 0-1, institute
State nanometer silver/kaolin anti-bacteria agent and contain Kaolin and nanometer silver, part nanometer silver is embedded between Kaolin crystal layer, Kaolin
Crystal edge is also loaded with nanometer silver, and the molecular formula of described nanometer silver/kaolin anti-bacteria agent is Al2AgX(Si2O5)(OH)4, wherein
X=0.001-2.62, the content of described nanometer silver is 0.01-10mol/kg, also contains paint in this antibiotic paint, and this antibacterial applies
The preparation method of material comprises the steps：
Prepare zinc oxide/kaolin anti-bacteria agent, this zinc oxide/kaolin anti-bacteria agent contains Kaolin, zinc oxide, described zinc oxide
On the kaolin, the content of described zinc oxide is 0.01-10mol/kg for load, and the particle diameter of described zinc oxide is 1-100nm, described
The molecular formula of zinc oxide/kaolin anti-bacteria agent is Al2(Si2O5)(ZnO)x(OH)4, wherein x=0.002-2.62；
The described step preparing zinc oxide/kaolin anti-bacteria agent includes：(1) by 1-100g Kaolin and 10-1000ml mass hundred
Point content is that the dimethyl sulphoxide solution of 1%-100% is mixed and stirred for 24-72 hour, forms kaolin/dimethyl sulfoxide multiple
Compound；Afterwards, using pure water twice, organic solvent washing once, to remove the removal of impurity and unnecessary dimethyl sulfoxide, described have
Machine solvent is one of methanol, ethanol；Kaolin/dimethyl sulfoxide complex after washing is dried as in baking oven, dries
Temperature in case is 40-90 DEG C；
(2) by kaolin/dimethyl sulfoxide complex and surfactant after drying with 200:1-2:1 mass ratio mixes simultaneously
Stir, surfactant be in cation, anion and nonionic surfactant any one, two kinds or two kinds with
On；Afterwards, adding 10-1000ml concentration by every 1-100g kaolin/dimethyl sulfoxide complex is 0.001-1mol/L zinc salt
Solution, is again stirring for 24-48 hour；
(3) mol ratio according to displacer and zinc salt is 0:1-5:1 ratio, adds displacer in the solution in step (2)
Continue stirring until being uniformly dissolved；Then react 15min-12h under conditions of being placed on 70 DEG C -800 DEG C, obtain after completion of the reaction
Obtain zinc oxide antibacterial；
Prepare nanometer silver/kaolin anti-bacteria agent；
By nanometer silver/kaolin anti-bacteria agent and zinc oxide/kaolin anti-bacteria agent mixing, and add to paint, stir and obtain
Described antibiotic paint, in this antibiotic paint, described nanometer silver/kaolin anti-bacteria agent and zinc oxide/kaolin anti-bacteria agent gross weight
Measure the 0.1%-5% for painting solid content, nanometer silver/kaolin anti-bacteria agent and zinc oxide/kaolin anti-bacteria agent are between the two
Weight is than for 0-1.
2. antibiotic paint as claimed in claim 1 preparation method it is characterised in that：Described nanometer silver/kaolin anti-bacteria agent
Preparation comprises the steps：
Kaolin is mixed with dimethyl sulphoxide solution, obtains kaolin/dimethyl sulfoxide complex；
By described kaolin/dimethyl sulfoxide complex and surfactant with 200:1-2:1 quality is than mix and blend, and adds
Enter silver ammino solution, obtain silver-colored ammonia mixed liquor；
Silver ammino solution molecule in silver-colored ammonia mixed liquor is reduced to by nanometer silver using photo-reduction, prepared carrier nanometer silver resists
Bacterium material, in described carrier nano silver antibacterial material, the content of nanometer silver is 0.01-10mol/kg.
3. antibiotic paint as claimed in claim 2 preparation method it is characterised in that：Described photo-reduction is especially by such as
Lower method is realized：Silver-colored ammonia mixed liquor is placed under the ultraviolet light between 250-420nm, photocatalysis 6-72h, acquisition nanometer silver/
Kaolin intercalation compound.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410274015.7A CN104017409B (en) | 2014-06-18 | 2014-06-18 | Antibacterial coating and preparation method thereof |
| PCT/CN2015/075724 WO2015192676A1 (en) | 2014-06-18 | 2015-04-01 | Antibacterial coating and preparation method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410274015.7A CN104017409B (en) | 2014-06-18 | 2014-06-18 | Antibacterial coating and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN104017409A CN104017409A (en) | 2014-09-03 |
| CN104017409B true CN104017409B (en) | 2017-02-15 |
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| CN201410274015.7A Active CN104017409B (en) | 2014-06-18 | 2014-06-18 | Antibacterial coating and preparation method thereof |
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| WO (1) | WO2015192676A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104017409B (en) * | 2014-06-18 | 2017-02-15 | 杜一挺 | Antibacterial coating and preparation method thereof |
| PL237757B1 (en) * | 2017-06-27 | 2021-05-31 | Lazarczyk Marcin Zakl Produkcyjno Handlowy Pakfol | Method for producing a compatible component with antiseptic properties for the anhydrous flexographic lacquer and the compatible component with antiseptic properties for the anhydrous flexographic lacquer |
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