CN108192434A - The preparation method of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film - Google Patents
The preparation method of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film Download PDFInfo
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- CN108192434A CN108192434A CN201711442831.4A CN201711442831A CN108192434A CN 108192434 A CN108192434 A CN 108192434A CN 201711442831 A CN201711442831 A CN 201711442831A CN 108192434 A CN108192434 A CN 108192434A
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- polyvinyl alcohol
- nano silver
- copper
- antimicrobial compound
- compound film
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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
- C09D129/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Coating compositions based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Coating compositions based on derivatives of such polymers
- C09D129/02—Homopolymers or copolymers of unsaturated alcohols
- C09D129/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- 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
-
- 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
- C08K2003/0806—Silver
-
- 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
- C08K2003/085—Copper
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Plant Pathology (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to plastic film preparing technical field more particularly to a kind of preparation method of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film, the specific steps are：Water, silver nitrate, copper nitrate and polyvinyl alcohol with certain mass ratio are mixed, mixed solution is made, water is deionized water or distilled water；The methods of mixed solution is used spin coating, spraying, showering, brushing or dip-coating coated in substrate surface, and is dried；Dried argentiferous, copper metal polyvinyl alcohol film are subjected to high-temperature cross-linking curing again, it is reduced into the nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film of zeroth order, the total content of nano silver copper is >=120ppm in nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film.The present invention is using in-situ reducing method synthesizing nano-silver copper bi-metal, and particle diameter distribution is more uniform, not easily to fall off, and durability is high；Preparation process does not use the additives such as reducing agent and stabilizer, direct formation of film at surface；Composite membrane antibacterial activity obtained is higher than pure nano silver film.
Description
Technical field
The present invention relates to antibacterial plastic film preparing technical field more particularly to a kind of poly- second of nano silver copper bimetal granule
The preparation method of enol antimicrobial compound film.
Background technology
At present there are mainly two types of the preparation methods of nanometer silver antimicrobial film and nano silver copper bimetallic antibacterial film：One kind is
The nanometer fine powder of doping nano-Ag or Nanometer Copper in the polymer, then prepares film forming；Another kind is on the polymer film
It is first modified, obtains relevant functional group, then be bonded nano silver or nanometer copper fine powder.It is but generally multi-purpose aqueous or solvent type receive
Rice silver or other anti-biotic materials (such as copper, zinc oxide).
Antibacterial polymer film is prepared using the method for doping or mixing, nano particle is easily reunited so that in film
Or the dispersion in coating is uneven, there is local difference in the anti-microbial property of the film finally obtained.Simultaneously as reuniting reduces
The antibacterial ability of antibacterial film, and the method for using film surface deposition prepares antibacterial film, nano particle and polymer matrix
The binding force at bottom is poor, and durability is poor.Although antibacterial liquid can prevent what is reunited using stabilizer or dispersant to reach
Purpose, but in some cases, these stabilizers can influence the mechanical property or anti-microbial property of antibacterial film.
Invention content
For the problems of the prior art, the present invention provides a kind of without using stabilizer or the nano silver copper of dispersant
The preparation method of bimetal granule composite membrane of polyvinyl alcohol.
For realization more than technical purpose, a kind of technical solution of the invention is：
A kind of preparation method of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film, specific steps include：
A. water, silver nitrate, copper nitrate and polyvinyl alcohol with certain mass ratio are mixed, obtains mixed solution, the water
For deionized water or distilled water；
B. the methods of mixed solution being used spin coating, spraying, showering, brushing or dip-coating, coated in substrate surface, and does
It is dry；
C. dried argentiferous, copper metal polyvinyl alcohol film are subjected to hot setting again, are reduced into the nano silver copper of zeroth order
Bimetal granule composite membrane of polyvinyl alcohol, the total content of nano silver copper in nano silver copper bimetal granule composite membrane of polyvinyl alcohol >=
120ppm。
For realization more than technical purpose, another technical solution of the invention is：
A kind of preparation method of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film, specific steps include：
A. water, silver fluoride, copper chloride and polyvinyl alcohol with certain mass ratio are mixed, obtains mixed solution, the water
For deionized water or distilled water；
B. the methods of mixed solution being used spin coating, spraying, showering, brushing or dip-coating, coated in substrate surface, and does
It is dry；
C. dried argentiferous, copper metal polyvinyl alcohol film are subjected to high-temperature cross-linking curing again, are reduced into the nanometer of zeroth order
Silver-bearing copper bimetal granule polyvinyl alcohol antimicrobial compound film, nano silver in nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film
Total content >=120ppm of copper.
Preferably, mixed solution is made in the step A under 10-35 DEG C of environment temperature.
Preferably, the mixed proportion of the water, silver nitrate, copper nitrate and polyvinyl alcohol in the step A is 242000:1:
1.8:8475。
Preferably, the relative scale of silver and copper atom number is 1 in the mixed solution that the step A is obtained:3-3:1.
Preferably, the drying in the step B is spontaneously dries at room temperature.
Preferably, drying in the step B is dry at -100 DEG C of room temperature.
Preferably, the base material is metal or ceramics.
Preferably, the hot setting temperature in the step C is 120-130 DEG C.
Preferably, the hot setting time in the step C is 10-30 minutes.
From the above, it can be seen that the present invention has advantages below：
1. the present invention using in-situ reducing method synthesis bimetallic nano, particle diameter distribution is more uniform, and particle distribution in
Not easily to fall off in polyvinyl alcohol antimicrobial compound film, durability is high.
2. the present invention prepares polymer using one-step method, not only method is simple, simplifies technique, and preparation process is not adopted
With additives such as any reducing agent and stabilizers, the antibacterial that nano silver copper bimetal granule is generated during direct formation of film at surface is compound
Film.
3. the antibacterial activity of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film produced by the present invention is received higher than pure
The antibacterial activity of meter Yin (same amount) film significantly reduces the manufacturing cost of film.
Description of the drawings
Fig. 1 is the preparation flow figure of Example 1 and Example 2 of the present invention；
Fig. 2 is the preparation flow figure of the embodiment of the present invention 3；
Fig. 3 is the scanning electron microscope (SEM) photograph of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film made from embodiment 1；
Fig. 4 is the transmission electron microscope picture of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film made from embodiment 1；
Fig. 5 is the XRD spectra of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film made from embodiment 1；
Fig. 6 is the Ag3d photoelectron energy of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film made from embodiment 1
Spectrogram；
Fig. 7 is the Cu2p photoelectron energy of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film made from embodiment 1
Spectrogram.
Specific embodiment
With reference to Fig. 1, the embodiment 1 that the present invention will be described in detail, but any restriction is not done to the claim of the present invention.
As shown in Figure 1, a kind of preparation method of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film, specific steps
Including：
A. double centner water is taken, 3.5 kilograms of polyvinyl alcohol are added at 10-35 DEG C, stirring and dissolving adds 354R0.413
Gram silver nitrate, 0.77 gram of copper nitrate, stirring obtain mixed solution to being completely dissolved, and wherein water is deionized water or distilled water；
B. by mixed solution use spin coating, spraying, showering, brushing or dip-coating the methods of, coated in base material (such as gold
Category, ceramics etc.) surface, and it is dry, drying means can be to be spontaneously dried or at -100 DEG C of room temperature under room temperature (25 DEG C)
It is dry；
C. dried argentiferous, copper metal polyvinyl alcohol film at 120-130 DEG C are subjected to high-temperature cross-linking curing again, cured
Time is 10-30 minutes, and so as to be reduced into the nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film of zeroth order, acquisition is received
The total content of nano silver copper is 150ppm in meter Yin Tong bimetal granule polyvinyl alcohol antimicrobial compound films.
Silver and copper ion are easily dissolved in the aqueous solution of polyvinyl alcohol in above-mentioned preparation method, do not need to using dispersant and
Additional reducing agent, it is uniform to form the bimetallic film of silver-bearing copper in polyvinyl alcohol solidification process.Wherein：Polyvinyl alcohol
Carboxyl：>- COOH is the basic place of direct-reduction silver and copper ion in situ：The in-situ reducing principle of silver is as follows：
>R-COOH+AgNO3>R-COO-Ag++HNO3
>R-COO-Ag++>R-OH>R-COOH+>R-O-Ag
>R-O-Ag Ag+>R=O
The in-situ reducing of copper is similar with the situation of silver, specific as follows：
>R-COOH+Cu(NO3)2>R-COO-Cu++HNO3
>R-COO-Cu++>R-OH>R-COOH+>R-O-Cu
>R-O-Cu Cu+>R=O
Since movement in the copper either solid film of silver atoms or migration are limited, (polyvinyl alcohol matrix becomes and stablizes naturally
Material), so uniform nano silver copper bimetallic can be formed.
In above-mentioned preparation method, nano silver in the nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film finally obtained
The total content of copper is only dependent upon the mass ratio of 0.413 gram of silver nitrate, 0.77 gram of copper nitrate and 3.5 kilograms of polyvinyl alcohol, has prepared
Cheng Hou, water can be evaporated all, therefore the ratio of 150ppm can pass through silver nitrate, copper nitrate and polyvinyl alcohol in the above method
Quality extrapolate, such as：The content of silver in 0.413 gram of silver nitrate is 0.262g, and the content of copper is in 0.77 gram of copper nitrate
0.262g, then the total content of nano silver copper is in nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film：
(0.262g+0.262g)/3500g=150ppm.
Due to restoring in water or in plastics PVA, water and plastics PVA shield, and the silver and copper after reduction are all
Exist in the form of presence rather than oxidation state in the form of metallic state, this point can be verified from following Fig. 3 to Fig. 7.
As shown in figure 3, it is the scanning electricity of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film made from embodiment 1
Mirror figure.As shown in figure 4, it is the transmission electron microscope of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film made from embodiment 1
Figure.It can be seen that, the bimetallic granular size of silver-bearing copper is between 3-12 nanometers, and particle diameter distribution is uniform from Fig. 3 and Fig. 4.
And particle distribution (embedded) in polyvinyl alcohol film, it is not easily to fall off.Projection electron microscope hair shown in Fig. 4 is analyzed simultaneously
Existing, the nano particle formed in nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film is by Cu-Ag nucleocapsid structures, simple substance
Nanometer Ag, simple substance nanometer Cu and Ag-Cu bimetal granule composition.
As shown in figure 5, it is the XRD spectrums of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film made from embodiment 1
Figure, spectrogram is that the peak of single Ag and Cu exists as can be seen from Figure 5, and it is bimetallic rather than double gold to absolutely prove silver-bearing copper particle
Belong to.
As shown in Figure 6 and Figure 7, it is the Ag3d photoelectron spectroscopies of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film
Figure and Cu2p photoelectron spectroscopy figures, it is apparent that silver and copper are in the form of metallic state (zero in the film from Fig. 6 and Fig. 7
Valency) exist, non-oxidation state metal exists.
With reference to Fig. 1, the embodiment 2 that the present invention will be described in detail, but any restriction is not done to the claim of the present invention.
As shown in Figure 1, a kind of preparation method of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film, specific steps
Including：
A. double centner water is taken, 3.5 kilograms of polyvinyl alcohol are added at 10-35 DEG C, stirring and dissolving adds 0.551 gram of nitre
Sour silver, 1.028 grams of copper nitrates, stirring obtain mixed solution to being completely dissolved, and wherein water is deionized water or distilled water；
B. by mixed solution use spin coating, spraying, showering, brushing or dip-coating the methods of, coated in base material (such as gold
Category, ceramics etc.) surface, and it is dry, drying means can be to be spontaneously dried or at -100 DEG C of room temperature under room temperature (25 DEG C)
It is dry；
C. dried argentiferous, copper metal polyvinyl alcohol film at 120-130 DEG C are subjected to high-temperature cross-linking curing again, cured
Time is 10-30 minutes, and so as to be reduced into the nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film of zeroth order, acquisition is received
The total content of nano silver copper is 200ppm in meter Yin Tong bimetal granule polyvinyl alcohol antimicrobial compound films.
Embodiment 2 is identical with the preparation principle of embodiment 1.
In above-described embodiment：Water in step A, silver nitrate, copper nitrate and polyvinyl alcohol usage amount can also use it is non-
The ratio that embodiment 1 and embodiment 2 are taken, such as choose typical proportions：
242000:1:1.8:8475, while other ratios can also be taken, if ensure in the mixed solution obtained silver and
The relative scale of copper atom number is 1:3-3:1, and ensure nanometer in nanoscale bimetallic particles polyvinyl alcohol antimicrobial compound film
Total content >=120ppm of silver-bearing copper.
With reference to Fig. 2, the embodiment 3 that the present invention will be described in detail, but any restriction is not done to the claim of the present invention.
As shown in Fig. 2, a kind of preparation method of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film, specific steps
Including：
A. double centner water is taken, 3.5 kilograms of polyvinyl alcohol are added at 10-35 DEG C, stirring and dissolving adds 0.413 gram of fluorine
Change silver, 0.55 gram of copper chloride, stirring obtains mixed solution to being completely dissolved, and wherein water is deionized water or distilled water；
B. by mixed solution use spin coating, spraying, showering, brushing or dip-coating the methods of, coated in base material (such as gold
Category, ceramics etc.) surface, and it is dry, drying means can be to be spontaneously dried or at -100 DEG C of room temperature under room temperature (25 DEG C)
It is dry；
C. dried argentiferous, copper metal polyvinyl alcohol film at 120-130 DEG C are subjected to high-temperature cross-linking curing again, cured
Time is 10-30 minutes, and so as to be reduced into the nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film of zeroth order, acquisition is received
The total content of nano silver copper is 150ppm in meter Yin Tong bimetal granule polyvinyl alcohol antimicrobial compound films.
The present embodiment is identical with the preparation principle of embodiment 1, wherein the in-situ reducing principle of silver and copper ion is as follows：
The in-situ reducing of silver ion
>R-COOH+AgF>R-COO-Ag++HF
>R-COO-Ag++>R-OH>R-COOH+>R-O-Ag
>R-O-Ag Ag+>R=O
The in-situ reducing of copper ion
>R-COOH+CuCl2→>R-COO-Cu++HCl
>R-COO-Cu++>R-OH→>R-COOH+>R-O-Cu
>R-O-Cu→Cu+>R=O
Below to the antibacterial of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film made from the method for the invention
Effect carries out test verification：
Nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film made from embodiment 1 and embodiment 2 is carried out antibacterial
Test, antibacterial test result and the antibacterial test result of traditional pure nano silver polyvinyl alcohol film is compared, as a result such as
Following table：
Note：Data are according to international standard ISO 22196 in upper table:2011 tests obtain (after one hour).
As can be seen from the above table：The antibacterial of nano silver copper bimetal granule composite membrane of polyvinyl alcohol produced by the present invention is lived
Property be higher than have same amount (nano silver copper total content i.e. in nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film etc.
Content of nanometer silver in pure nano silver polyvinyl alcohol film) pure nano silver film antibacterial activity, significantly reduce film
Manufacturing cost.
In addition, method using the present invention, carries out test of many times, by changing the allocation ratio of mixed solution in step A,
So as to which the nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film with different nano silver copper total contents be made, by made from
The anti-microbial property of a variety of antimicrobial compound films is compared, and finds to exist when the total content control of nano silver copper in antimicrobial compound film
During 120ppm -200ppm, anti-microbial property is excellent, and manufacturing cost is low, cost performance highest.
In method of the present invention：Silver nitrate, the silver fluoride of selection can be replaced with the compound of other silver, as long as protecting
The compound for demonstrate,proving silver is soluble easily in water, and equivalent copper nitrate, copper chloride can also use the compound of other copper soluble easily in water
Instead of, such as：Copper sulphate.
In conclusion the present invention has the following advantages：
1. the present invention is using the method synthesis bimetallic nano of in-situ reducing, not only particle diameter distribution is more uniform, but also particle
It is distributed in polyvinyl alcohol antimicrobial compound film, not easily to fall off, durability is high.
2. the present invention prepares polymer using one-step method, not only method is simple, simplifies technique, and preparation process is not adopted
With additives such as any reducing agent and stabilizers, the antibacterial that nano silver copper bimetal granule is generated during direct formation of film at surface is compound
Film.
3. the antibacterial activity of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film produced by the present invention is received higher than pure
The antibacterial activity of meter Yin (same amount) film significantly reduces the manufacturing cost of film.
It is understood that above with respect to the specific descriptions of the present invention, it is merely to illustrate the present invention and is not limited to this
The described technical solution of inventive embodiments.It will be understood by those of ordinary skill in the art that still the present invention can be carried out
Modification or equivalent replacement, to reach identical technique effect；As long as meeting using needs, all protection scope of the present invention it
It is interior.
Claims (10)
1. a kind of preparation method of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film, specific steps include：
A. water, silver nitrate, copper nitrate and polyvinyl alcohol with certain mass ratio are mixed, mixed solution is made, the water is goes
Ionized water or distilled water；
B. the methods of mixed solution being used spin coating, spraying, showering, brushing or dip-coating coated in substrate surface, and is dried；
C. dried argentiferous, copper metal polyvinyl alcohol film are subjected to high-temperature cross-linking curing again, are reduced into the nano silver copper of zeroth order
Bimetal granule polyvinyl alcohol antimicrobial compound film, nano silver copper in nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film
Total content >=120ppm.
2. a kind of preparation method of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film, specific steps include：
A. water, silver fluoride, copper chloride and polyvinyl alcohol with certain mass ratio are mixed, mixed solution is made, the water is goes
Ionized water or distilled water；
B. the methods of mixed solution being used spin coating, spraying, showering, brushing or dip-coating coated in substrate surface, and is dried；
C. dried argentiferous, copper metal polyvinyl alcohol film are subjected to high-temperature cross-linking curing again, are reduced into the nano silver copper of zeroth order
Bimetal granule polyvinyl alcohol antimicrobial compound film, nano silver copper in nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film
Total content >=120ppm.
3. the preparation method of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film according to claim 1 or 2,
It is characterized in that：Mixed solution is made in the step A under 10-35 DEG C of environment temperature.
4. the preparation method of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film according to claim 1, special
Sign is：The mixed proportion of water, silver nitrate, copper nitrate and polyvinyl alcohol in the step A is 242000:1:1.8:8475.
5. the preparation method of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film according to claim 1 or 2,
It is characterized in that：The relative scale of silver and copper atom number is 1 in the mixed solution that the step A is obtained:3-3:1.
6. the preparation method of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film according to claim 1 or 2,
It is characterized in that：Drying in the step B is spontaneously dries at room temperature.
7. the preparation method of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film according to claim 1 or 2,
It is characterized in that：Drying in the step B is dry at -100 DEG C of room temperature.
8. the preparation method of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film according to claim 1 or 2,
It is characterized in that：The base material is metal or ceramics.
9. the preparation method of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film according to claim 1 or 2,
It is characterized in that：High-temperature cross-linking solidification temperature in the step C is 120-130 DEG C.
10. the preparation method of nano silver copper bimetal granule polyvinyl alcohol antimicrobial compound film according to claim 9, special
Sign is：High-temperature cross-linking hardening time in the step C is 10-30 minutes.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109395590A (en) * | 2018-09-18 | 2019-03-01 | 南方科技大学 | A kind of preparation method of PVDF antibacterial film |
| CN109819979A (en) * | 2019-03-15 | 2019-05-31 | 尚蒙科技无锡有限公司 | Nano silver copper bimetallic colloid/liquid of high anti-microbial property and preparation method thereof |
| CN115819820A (en) * | 2022-12-12 | 2023-03-21 | 江苏亨通精密铜业有限公司 | Composite foil and preparation process thereof |
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| CN101200553A (en) * | 2006-12-14 | 2008-06-18 | 中国科学院理化技术研究所 | Slver particles/polyvinyl alcohol composite as well as preparation method and uses thereof |
| CN102302875A (en) * | 2011-07-27 | 2012-01-04 | 东华大学 | Method for preparing antibacterial air-filtering membrane |
| CN104072798A (en) * | 2014-06-16 | 2014-10-01 | 武汉维斯第医用科技股份有限公司 | Preparation method of nano-particle modified sponge dressing with anti-bacterial function |
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| CN101200553A (en) * | 2006-12-14 | 2008-06-18 | 中国科学院理化技术研究所 | Slver particles/polyvinyl alcohol composite as well as preparation method and uses thereof |
| CN102302875A (en) * | 2011-07-27 | 2012-01-04 | 东华大学 | Method for preparing antibacterial air-filtering membrane |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109395590A (en) * | 2018-09-18 | 2019-03-01 | 南方科技大学 | A kind of preparation method of PVDF antibacterial film |
| CN109395590B (en) * | 2018-09-18 | 2021-06-22 | 南方科技大学 | Preparation method of PVDF (polyvinylidene fluoride) antibacterial film |
| CN109819979A (en) * | 2019-03-15 | 2019-05-31 | 尚蒙科技无锡有限公司 | Nano silver copper bimetallic colloid/liquid of high anti-microbial property and preparation method thereof |
| CN115819820A (en) * | 2022-12-12 | 2023-03-21 | 江苏亨通精密铜业有限公司 | Composite foil and preparation process thereof |
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Application publication date: 20180622 |