CN109486267A - A kind of composite antibacterial coating and preparation method thereof containing silica - Google Patents
A kind of composite antibacterial coating and preparation method thereof containing silica Download PDFInfo
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- CN109486267A CN109486267A CN201811633097.4A CN201811633097A CN109486267A CN 109486267 A CN109486267 A CN 109486267A CN 201811633097 A CN201811633097 A CN 201811633097A CN 109486267 A CN109486267 A CN 109486267A
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- 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
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- 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
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Abstract
The invention discloses a kind of composite antibacterial coating and preparation method thereof containing silica, including porous silica and the silver and the nano titania anti-biotic material that are attached in porous silica, it is made of the following components: containing Silver nano-powder, nano-titanium dioxide, ultra-fine porous silica and other nano metal powders, the effective content of percentages silver is 12.0-25.0wt%, the effective content of titanium dioxide is 18.0-32.0wt%, the effective content of ultra-fine porous silica is 28.0-58.0wt%, other metal powders 0-30.0wt%.
Description
Technical field
The invention belongs to e-coat field of material technology, are related to a kind of antimicrobial coating material, and in particular to one kind contains
Composite antibacterial coating of silica and preparation method thereof.
Background technique
In the real life of people, skin can inevitably touch the microorganisms such as various bacteriums, fungi,
These microorganisms can breed rapidly under suitable external condition, and be spread the disease by modes such as contacts, influence the body of people
Body health.Especially skin is after wound, burn or ulcer, it is easier to cause to infect, or slow down the healing of wound.People are frequent
The object touched, not only object own face can adsorb the microorganisms such as bacterium, and cross-contact will also result in spread of germs,
If coating anti-biotic material in body surface, makes body surface have the function of inhibiting fungus grown, safeguard safe life cycle
Border guarantees human health.
In order to improve people in life to the defence capability of mushroom, with human skin often in contact with body surface,
The anti-biotic material of one layer of discharge of bacteria bactericidal effect is coated, infected probability can be reduced, and effectively prevent spread of germs.
Dressing containing metal fungicide, as disclosed in patent CN200410090621.X " a kind of containing Ag-Zn composition
Wound dressing ", can be effectively antibacterial to wound and promotes the healing of wound.
Dressing containing the metals fungicide such as silver-colored zinc, patent 2008802100.5 disclose a kind of polyurethane foam dressing
Preparation method, but drug is easy easily to occur being unevenly distributed in the foam or drug is directly wrapped up by foam, hinders significantly
The performance of efficacy of drugs.
" a kind of copper nano composite antibacterial coating and preparation method thereof " disclosed in patent CN108435515A uses electrostatic
Technique is applied by copper nano composite antibacterial powder spray in metal surface, to form copper nano composite antibacterial coating in metal surface,
But the antimicrobial coating wearability that this method is formed is poor.
Summary of the invention
To overcome the shortcomings of existing technologies, the purpose of the present invention is to provide a kind of, and the composite antibacterial containing silica applies
Material and preparation method thereof is that a kind of antimicrobial component is more evenly distributed, and timeliness is longer, and can be in the hard such as including ceramic material
Surface spraying, can also apply to the composite antibacterial coating containing silica on flexible article surface.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of composite antibacterial coating containing silica, including porous silica and be attached in porous silica
Silver and nano titania anti-biotic material, be made of the following components:
Containing Silver nano-powder, nano-titanium dioxide, ultra-fine porous silica and other nano metal powders, percentages
The effective content of silver is 12.0-25.0wt%, and the effective content of titanium dioxide is 18.0-32.0wt%, ultra-fine porous silica
The effective content of silicon is 28.0-58.0wt%, other metal powders 0-30.0wt%；
It is described to contain Silver nano-powder, it is nano silver, nanometer Ag2O and nanometer Ag2O2One or more of, when mixing
For arbitrary proportion；
The raw material of the nano-titanium dioxide, for Ti (OH)4、TiO2With TiO (OH)2One or more of, mixing
When be arbitrary proportion；
The ultra-fine porous silica is micron-sized ultra-fine porous silica, and partial size is in 0.5-5.0 μ m；
Other described nano metal powders are one of Nanometer Copper powder, nanometer aluminium powder, nano zinc powder, nano titanium powder
Or it is two or more, it is arbitrary proportion when mixing；
The composition of organic reagent 1: 60.0-90.0wt% dehydrated alcohol, 0.5-8.0wt% silicon surface active agent and 8.0-
35.0wt% dioxanes；
The weight ratio of organic reagent 1 and the above solid powder is 1:1-2:1；
The composition of organic reagent 2: 10.0-38.0wt% ethyl cellulose, 30.0-68.0wt% terpinol and 8.0-
35.0wt% dehydrated alcohol；
The weight ratio of organic reagent 2 and (the above solid powder of organic reagent 1+) is 1:3-1:10.
Composite antibacterial coating of the present invention containing silica can be prepared using following three kinds of methods.
Prepare the method one of the above-mentioned composite antibacterial coating containing silica, comprising the following steps:
1) it prepares nano silver: nano-silver powder being prepared using rf induction plasma, the nano-silver powder partial size of preparation is in 5-
50nm, preferably 5-15 nanometer；
2) it prepares nanometer titanium dioxide titanium valve: utilizing Ti (OH)4、TiO2With TiO (OH)2One or more of do original
Material prepares nanometer titanium dioxide titanium valve using rf induction plasma, and the nano-titanium dioxide powder diameter of preparation is excellent in 5-50nm
Select 5-15 nanometers；
3) preparation of the composite antibacterial coating containing silica:
1. weighing solid powder in proportion: the nanometer titanium dioxide of the nano silver of 12.0-25.0wt%, 18.0-32.0wt%
Titanium valve, the ultra-fine porous silica of 28.0-58.0wt%, other metal powders of 0-30.0wt%；
2. weigh in proportion organic reagent 1:60.0-90.0wt% dehydrated alcohol, 0.5-8.0wt% silicon surface active agent and
8.0-35.0wt% dioxanes；
3. the weight ratio of organic reagent 1 and solid powder is 1:1-2:1；
The nano silver weighed up and nanometer titanium dioxide titanium valve are poured into after 4. organic reagent 1 is mixed and stirred for uniformly,
It is uniformly dispersed, then um porous silica is added again, immediately high-speed stirred 3-6 under 300-1000 revs/min of revolving speed
Hour, then separated with tube centrifuge, the mixed-powder for being sunken to tube wall is dried in vacuum drying oven at 35-45 DEG C, crosses 200 mesh
Sieve is to get the composite antibacterial coating mixed-powder containing silica；
5. weigh in proportion organic reagent 2:10.0-38.0wt% ethyl cellulose, 30.0-68.0wt% terpinol and
8.0-35.0wt% dehydrated alcohol；
6. the weight ratio of organic reagent 2 and the composite antibacterial coating mixed-powder containing silica is 1:3-1:10；
7. organic reagent 2 is mixed and after stirring and dissolving is complete under the conditions of 45 DEG C, contain titanium dioxide for what is weighed up
The composite antibacterial coating mixed-powder of silicon pours into, and is uniformly dispersed under 300-1000 revs/min of revolving speed, then use spray dryer
It is spray-dried, crosses 200 meshes to get the composite antibacterial coating containing silica.
Prepare the method two of the above-mentioned composite antibacterial coating containing silica, comprising the following steps:
1) nanometer Ag is screened2O: by nanometer Ag2O particle pours into ethanol solution, with 5-10 points of high speed disperser dispersion
Clock, then separated 2-3 times with high speed tube centrifuge, preferably 5-15 nanometers of particle；
2) it prepares nanometer titanium dioxide titanium valve: utilizing Ti (OH)4、TiO2With TiO (OH)2One or more of do original
Material prepares nanometer titanium dioxide titanium valve using rf induction plasma, and the nano-titanium dioxide powder diameter of preparation is excellent in 5-50nm
Select 5-15 nanometers；
3) preparation of the composite antibacterial coating containing silica:
1. weighing solid powder in proportion: the nanometer Ag of 12.0-25.0wt%2The nano-silica of O, 18.0-32.0wt%
Change titanium valve, the ultra-fine porous silica of 28.0-58.0wt%, other metal powders of 0-30.0wt%；
2. weigh in proportion organic reagent 1:60.0-90.0wt% dehydrated alcohol, 0.5-8.0wt% silicon surface active agent and
8.0-35.0wt% dioxanes；
3. the weight ratio of organic reagent 1 and solid powder is 1:1-2:1；
The nano silver weighed up and nanometer titanium dioxide titanium valve are poured into after 4. organic reagent 1 is mixed and stirred for uniformly,
It is uniformly dispersed, then um porous silica is added again, immediately high-speed stirred 3-6 under 300-1000 revs/min of revolving speed
Hour, then separated with tube centrifuge, the mixed-powder for being sunken to tube wall is dried in vacuum drying oven at 35-45 DEG C, crosses 200 mesh
Sieve is to get the composite antibacterial coating mixed-powder containing silica；
5. weigh in proportion organic reagent 2:10.0-38.0wt% ethyl cellulose, 30.0-68.0wt% terpinol and
8.0-35.0wt% dehydrated alcohol；
6. the weight ratio of organic reagent 2 and the composite antibacterial coating mixed-powder containing silica is 1:3-1:10；
7. organic reagent 2 is mixed and after stirring and dissolving is complete under the conditions of 45 DEG C, contain titanium dioxide for what is weighed up
The composite antibacterial coating mixed-powder of silicon pours into, and is uniformly dispersed under 300-1000 revs/min of revolving speed, then use spray dryer
It is spray-dried, crosses 200 meshes to get the composite antibacterial coating containing silica.
Prepare the method three of the above-mentioned composite antibacterial coating containing silica, comprising the following steps:
1) nanometer Ag is screened2O2: by nanometer Ag2O2Particle pours into ethanol solution, disperses 5-10 with high speed disperser
Minute, then separated 2-3 times with high speed tube centrifuge, preferably 5-15 nanometers of particle；
2) it prepares nanometer titanium dioxide titanium valve: utilizing Ti (OH)4、TiO2With TiO (OH)2One or more of do original
Material prepares nanometer titanium dioxide titanium valve using rf induction plasma, and the nano-titanium dioxide powder diameter of preparation is excellent in 5-50nm
Select 5-15 nanometers；
3) preparation of the composite antibacterial coating containing silica:
1. weighing solid powder in proportion: the nanometer Ag of 12.0-25.0wt%2O2, the nano-silica of 18.0-32.0wt%
Change titanium valve, the ultra-fine porous silica of 28.0-58.0wt%, other metal powders of 0-30.0wt%；
2. weigh in proportion organic reagent 1:60.0-90.0wt% dehydrated alcohol, 0.5-8.0wt% silicon surface active agent and
8.0-35.0wt% dioxanes；
3. the weight ratio of organic reagent 1 and solid powder is 1:1-2:1；
The nano silver weighed up and nanometer titanium dioxide titanium valve are poured into after 4. organic reagent 1 is mixed and stirred for uniformly,
It is uniformly dispersed, then um porous silica is added again, immediately high-speed stirred 3-6 under 300-1000 revs/min of revolving speed
Hour, then separated with tube centrifuge, the mixed-powder for being sunken to tube wall is dried in vacuum drying oven at 35-45 DEG C, crosses 200 mesh
Sieve is to get the composite antibacterial coating mixed-powder containing silica；
5. weigh in proportion organic reagent 2:10.0-38.0wt% ethyl cellulose, 30.0-68.0wt% terpinol and
8.0-35.0wt% dehydrated alcohol；
6. the weight ratio of organic reagent 2 and the composite antibacterial coating mixed-powder containing silica is 1:3-1:10；
7. organic reagent 2 is mixed and after stirring and dissolving is complete under the conditions of 45 DEG C, contain titanium dioxide for what is weighed up
The composite antibacterial coating mixed-powder of silicon pours into, and is uniformly dispersed under 300-1000 revs/min of revolving speed, then use spray dryer
It is spray-dried, crosses 200 meshes to get the composite antibacterial coating containing silica.
Compared with prior art, the invention has the following advantages that
1, for anti-biotic material of the invention by being sprayed at metal material surface, wearability is strong, can efficiently reduce due to material
Local bacterial mass propagation problem caused by material surface abrasion causes anti-biotic material to be unevenly distributed.
2, antimicrobial coating material of the invention has biggish specific surface area and pore structure abundant, makes effective antimicrobial component
It is protected, is conducive to maintain permanently effective sterilization factors concentration, and sterilization factors can be sustained in a long time, sterilize holding effect
Time is long.
3, the obtained composite antibacterial coating containing silica of the present invention, can be sprayed at hard material surface and
The soft materials surfaces such as knitting are sprayed at, the scope of application of anti-biotic material of the same race is expanded.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention is carried out below further
It is described in detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to limit this hair
It is bright.
Embodiment 1: the composite antibacterial coating containing silica is prepared using method one
1) a certain amount of micro-silver powder is taken, is put into rf induction plasma powder manufacturing apparatus, nodularization powder is heated, is producing
Powder in be added 20wt% dehydrated alcohol, high speed dispersion, then with tube centrifuge be classified 2-3 times, finally obtain dispersion
Property good powder dried in vacuum drying oven under the conditions of 35-45 DEG C it is stand-by；
2) a certain amount of Ti (OH) is taken4, nanometer titanium dioxide titanium valve is prepared using rf induction plasma, in the powder produced
Then the middle dehydrated alcohol that 20wt% is added, high speed dispersion are classified 2-3 times with tube centrifuge, finally obtain favorable dispersibility
Powder dried in vacuum drying oven under the conditions of 35-45 DEG C it is stand-by；
3) preparation of the composite antibacterial coating containing silica:
1. weighing solid powder in proportion: the nanometer titanium dioxide titanium valve of the nano silver of 12.0wt%, 18.0wt%,
The ultra-fine porous silica of 40.0wt%, other metal powders of 30.0wt%, other described nano metal powders are nanometer
Copper powders；
2. weighing organic reagent 1:60.0wt% dehydrated alcohol, 8.0wt% silicon surface active agent and 32.0wt% in proportion
Dioxanes；
3. the weight ratio of organic reagent 1 and solid powder is 1:1；
The nano silver weighed up and nanometer titanium dioxide titanium valve are poured into after 4. organic reagent 1 is mixed and stirred for uniformly,
It is uniformly dispersed, then um porous silica is added again, immediately high-speed stirred 3-6 under 300-1000 revs/min of revolving speed
Hour, then separated with tube centrifuge, the mixed-powder for being sunken to tube wall is dried in vacuum drying oven at 35-45 DEG C, crosses 200 mesh
Sieve is to get the composite antibacterial coating mixed-powder containing silica；
5. it is anhydrous to weigh organic reagent 2:10.0wt% ethyl cellulose, 68.0wt% terpinol and 22.0wt% in proportion
Ethyl alcohol；
6. the weight ratio of organic reagent 2 and the composite antibacterial coating mixed-powder containing silica is 1:3；
7. organic reagent 2 is mixed and after stirring and dissolving is complete under the conditions of 45 DEG C, contain titanium dioxide for what is weighed up
The composite antibacterial coating mixed-powder of silicon pours into, and is uniformly dispersed under 300-1000 revs/min of revolving speed, then use spray dryer
It is spray-dried, crosses 200 meshes to get the composite antibacterial coating containing silica.
Embodiment 2: the composite antibacterial coating containing silica is prepared using method two
1) a certain amount of micro-silver powder is taken, is put into rf induction plasma powder manufacturing apparatus, nodularization powder is heated, is producing
Powder in be added 20wt% dehydrated alcohol, high speed dispersion, then with tube centrifuge be classified 2-3 times, finally obtain dispersion
Property good powder dried in vacuum drying oven under the conditions of 35-45 DEG C it is stand-by；
2) a certain amount of TiO (OH) is taken2, nanometer titanium dioxide titanium valve is prepared using rf induction plasma, in the powder produced
The dehydrated alcohol of 20wt% is added in end, then high speed dispersion is classified 2-3 times with tube centrifuge, it is good to finally obtain dispersibility
Good powder is dried stand-by under the conditions of 35-45 DEG C in vacuum drying oven；
3) preparation of the composite antibacterial coating containing silica:
1. weighing solid powder in proportion: the nanometer Ag of 18.0wt%2The nanometer titanium dioxide titanium valve of O, 24.0wt%,
The ultra-fine porous silica of 58.0wt%, other metal powders of 0wt%, other described nano metal powders are nano aluminum
Powder；
2. weighing organic reagent 1:90.0wt% dehydrated alcohol, 2.0wt% silicon surface active agent and 8.0wt% bis- in proportion
Oxane；
3. the weight ratio of organic reagent 1 and solid powder is 2:1；
The nano silver weighed up and nanometer titanium dioxide titanium valve are poured into after 4. organic reagent 1 is mixed and stirred for uniformly,
It is uniformly dispersed, then um porous silica is added again, immediately high-speed stirred 3-6 under 300-1000 revs/min of revolving speed
Hour, then separated with tube centrifuge, the mixed-powder for being sunken to tube wall is dried in vacuum drying oven at 35-45 DEG C, crosses 200 mesh
Sieve is to get the composite antibacterial coating mixed-powder containing silica；
5. it is anhydrous to weigh organic reagent 2:38.0wt% ethyl cellulose, 27.0wt% terpinol and 35.0wt% in proportion
Ethyl alcohol；
6. the weight ratio of organic reagent 2 and the composite antibacterial coating mixed-powder containing silica is 1:6；
7. organic reagent 2 is mixed and after stirring and dissolving is complete under the conditions of 45 DEG C, contain titanium dioxide for what is weighed up
The composite antibacterial coating mixed-powder of silicon pours into, and is uniformly dispersed under 300-1000 revs/min of revolving speed, then use spray dryer
It is spray-dried, crosses 200 meshes to get the composite antibacterial coating containing silica.
Embodiment 3: the composite antibacterial coating containing silica is prepared using method three
1) a certain amount of micro-silver powder is taken, is put into rf induction plasma powder manufacturing apparatus, nodularization powder is heated, is producing
Powder in be added 20wt% dehydrated alcohol, high speed dispersion, then with tube centrifuge be classified 2-3 times, finally obtain dispersion
Property good powder dried in vacuum drying oven under the conditions of 35-45 DEG C it is stand-by；
2) a certain amount of TiO is taken2, nanometer titanium dioxide titanium valve is prepared using rf induction plasma, in the powder produced
The dehydrated alcohol of 20wt% is added, then high speed dispersion is classified 2-3 times with tube centrifuge, finally obtains favorable dispersibility
Powder is dried stand-by under the conditions of 35-45 DEG C in vacuum drying oven；
3) preparation of the composite antibacterial coating containing silica:
1. weighing solid powder in proportion: the nanometer Ag of 25.0wt%2O2, the nanometer titanium dioxide titanium valve of 32.0wt%,
The ultra-fine porous silica of 28.0wt%, other metal powders of 15.0wt%, other described nano metal powders are nanometer
Arbitrary proportion mixture in copper powders, nano titanium powder；
2. weighing organic reagent 1:64.5wt% dehydrated alcohol, 0.5wt% silicon surface active agent and 35.0wt% in proportion
Dioxanes；
3. the weight ratio of organic reagent 1 and solid powder is 3:2；
The nano silver weighed up and nanometer titanium dioxide titanium valve are poured into after 4. organic reagent 1 is mixed and stirred for uniformly,
It is uniformly dispersed, then um porous silica is added again, immediately high-speed stirred 3-6 under 300-1000 revs/min of revolving speed
Hour, then separated with tube centrifuge, the mixed-powder for being sunken to tube wall is dried in vacuum drying oven at 35-45 DEG C, crosses 200 mesh
Sieve is to get the composite antibacterial coating mixed-powder containing silica；
5. it is anhydrous to weigh organic reagent 2:30.0wt% ethyl cellulose, 62.0wt% terpinol and 8.0wt% in proportion
Ethyl alcohol；
6. the weight ratio of organic reagent 2 and the composite antibacterial coating mixed-powder containing silica is 1:10；
7. organic reagent 2 is mixed and after stirring and dissolving is complete under the conditions of 45 DEG C, contain titanium dioxide for what is weighed up
The composite antibacterial coating mixed-powder of silicon pours into, and is uniformly dispersed under 300-1000 revs/min of revolving speed, then use spray dryer
It is spray-dried, crosses 200 meshes to get the composite antibacterial coating containing silica.
Comparative example
1) a certain amount of micro-silver powder is taken, is put into rf induction plasma powder manufacturing apparatus, nodularization powder is heated, is producing
Powder in the dehydrated alcohol of 20wt% is added, high speed dispersion finally obtains the powder of favorable dispersibility under the conditions of 35-45 DEG C
It is dried in vacuum drying oven stand-by；
2) a certain amount of TiO (OH) is taken2, nanometer titanium dioxide titanium valve is prepared using rf induction plasma, in the powder produced
The dehydrated alcohol of 20wt% is added in end, high speed dispersion finally obtains the powder of favorable dispersibility vacuum under the conditions of 35-45 DEG C
It is dried in baking oven stand-by；
3) preparation of the composite antibacterial coating containing silica:
1. weighing solid powder in proportion: the nanometer Ag of 18.0wt%2The nanometer titanium dioxide titanium valve of O, 24.0wt%,
The ultra-fine porous silica of 58.0wt%, other metal powders of 0wt%；
2. weighing organic reagent 1:90.0wt% dehydrated alcohol, 2.0wt% silicon surface active agent and 8.0wt% bis- in proportion
Oxane；
3. the weight ratio of organic reagent 1 and solid powder is 2:1；
The nano silver weighed up and nanometer titanium dioxide titanium valve are poured into after 4. organic reagent 1 is mixed and stirred for uniformly,
It is uniformly dispersed, then um porous silica is added again, immediately high-speed stirred 3-6 under 300-1000 revs/min of revolving speed
Hour, then separated with tube centrifuge, the mixed-powder for being sunken to tube wall is dried in vacuum drying oven at 35-45 DEG C, crosses 200 mesh
Sieve is to get the composite antibacterial coating containing silica.
Composite antibacterial coating containing silica prepared by embodiment 1-3 and comparative example, can direct spraying in metal
Equal solid material surfaces, or the matrix by covering upper tack on the surface of the antimicrobial coating material, then direct spraying in
Flexible material surface.
Experimental example: performance test
1. antibacterial tests
By the composite antibacterial coating prepared by embodiment 1-3 and comparative example containing silica to several frequently seen representative
Bacterium carries out antibacterial tests, and operating procedure is as follows: taking 10.0cm*10.0cm size, with a thickness of the stainless steel substrates of 0.1mm, will contain
The composite antibacterial coating thermal jet of silica is applied to stainless steel surface, then coating thickness carries out material antibacterial up to 100 μm or more
Performance test, the results are shown in Table 1:
Table 1: antibacterial tests result
From table 1 the result shows that, this kind of anti-biotic material to staphylococcus aureus, Escherichia coli, Candida albicans act on
Between one section of inch, the order of magnitude of three kinds of bacterium is reduced obviously, shows it with very strong antibacterial effect.From with comparative example is made contains
There are the antibacterial effect data of the composite antibacterial coating of silica it is found that using nano silver and titanium dioxide containing greater particle size
Its antibacterial effect of the anti-biotic material of preparation is lower than the anti-biotic material using method provided by the present invention preparation；From embodiment 1,2,
Data between 3 compare it is found that heterogeneity and the anti-biotic material of content preparation have large effect, more granule to anti-microbial property
Its anti-microbial property of the material of Ag-containing compound and nano-titanium dioxide preparation of diameter is slightly excellent, and embodiment 2 and embodiment 3 are because contain
The oxide of silver, excellent antibacterial performance, and partly or entirely decompose after the heating, the smaller nano silver of partial size is generated, is had
Ideal antibacterial effect.
Claims (5)
1. a kind of composite antibacterial coating containing silica, which is characterized in that including porous silica and be attached to porous
Silver and nano titania anti-biotic material in silica, are made of the following components:
Containing Silver nano-powder, nano-titanium dioxide, ultra-fine porous silica and other nano metal powders, percentages silver
Effective content is 12.0-25.0wt%, and the effective content of titanium dioxide is 18.0-32.0wt%, ultra-fine porous silica
Effective content is 28.0-58.0wt%, other metal powders 0-30.0wt%；
It is described to contain Silver nano-powder, it is nano silver, nanometer Ag2O and nanometer Ag2O2One or more of, mix Shi Weiren
Meaning ratio；
The raw material of the nano-titanium dioxide, for Ti (NO)4、TiO2With TiO (NO)2One or more of, when mixing is
Arbitrary proportion；
The ultra-fine porous silica is micron-sized ultra-fine porous silica, and partial size is in 0.5-5.0 μ m；
Other described nano metal powders are one of Nanometer Copper powder, nanometer aluminium powder, nano zinc powder, nano titanium powder or two
Kind or more, it is arbitrary proportion when mixing；
The composition of organic reagent 1: 60.0-90.0wt% dehydrated alcohol, 0.5-8.0wt% silicon surface active agent and 8.0-
35.0wt% dioxanes；
The weight ratio of organic reagent 1 and the above solid powder is 1:1-2:1；
The composition of organic reagent 2: 10.0-38.0wt% ethyl cellulose, 30.0-68.0wt% terpinol and 8.0-35.0wt%
Dehydrated alcohol；
The weight ratio of organic reagent 2 and (the above solid powder of organic reagent 1+) is 1:3-1:10.
2. a kind of preparation method of composite antibacterial coating containing silica described in claim 1, which is characterized in that including
Following steps:
1) it prepares nano silver: nano-silver powder being prepared using rf induction plasma, the nano-silver powder partial size of preparation is in 5-50nm；
2) it prepares nanometer titanium dioxide titanium valve: utilizing Ti (NO)4、TiO2With TiO (NO)2One or more of do raw material, adopt
Nanometer titanium dioxide titanium valve is prepared with rf induction plasma, the nano-titanium dioxide powder diameter of preparation is in 5-50nm；
3) preparation of the composite antibacterial coating containing silica:
1. weighing solid powder in proportion: the nanometer titanium dioxide titanium valve of the nano silver of 12.0-25.0wt%, 18.0-32.0wt%,
The ultra-fine porous silica of 28.0-58.0wt%, other metal powders of 0-30.0wt%；
2. weighing organic reagent 1:60.0-90.0wt% dehydrated alcohol, 0.5-8.0wt% silicon surface active agent and 8.0- in proportion
35.0wt% dioxanes；
3. the weight ratio of organic reagent 1 and solid powder is 1:1-2:1；
4. the nano silver weighed up and nanometer titanium dioxide titanium valve are poured into, after organic reagent 1 is mixed and stirred for uniformly in 300-
It is uniformly dispersed under 1000 revs/min of revolving speed, then um porous silica is added again, high-speed stirred 3-6 hours immediately,
It is separated again with tube centrifuge, the mixed-powder for being sunken to tube wall is dried in vacuum drying oven at 35-45 DEG C, cross 200 meshes, i.e.,
Obtain the composite antibacterial coating mixed-powder containing silica；
5. weighing organic reagent 2:10.0-38.0wt% ethyl cellulose, 30.0-68.0wt% terpinol and 8.0- in proportion
35.0wt% dehydrated alcohol；
6. the weight ratio of organic reagent 2 and the composite antibacterial coating mixed-powder containing silica is 1:3-1:10；
7. organic reagent 2 is mixed and after stirring and dissolving is complete under the conditions of 45 DEG C, by what is weighed up containing silica
Composite antibacterial coating mixed-powder pours into, and is uniformly dispersed under 300-1000 revs/min of revolving speed, then is carried out with spray dryer
Spray drying crosses 200 meshes to get the composite antibacterial coating containing silica.
3. a kind of preparation method of composite antibacterial coating containing silica described in claim 1, which is characterized in that including
Following steps:
1) nanometer Ag is screened2O: by nanometer Ag2O particle pours into ethanol solution, is dispersed 5-10 minutes with high speed disperser,
It is separated 2-3 times with high speed tube centrifuge again；
2) it prepares nanometer titanium dioxide titanium valve: utilizing Ti (NO)4、TiO2With TiO (NO)2One or more of do raw material, adopt
Nanometer titanium dioxide titanium valve is prepared with rf induction plasma, the nano-titanium dioxide powder diameter of preparation is in 5-50nm；
3) preparation of the composite antibacterial coating containing silica:
1. weighing solid powder in proportion: the nanometer Ag of 12.0-25.0wt%2The nano-titanium dioxide of O, 18.0-32.0wt%
Powder, the ultra-fine porous silica of 28.0-58.0wt%, other metal powders of 0-30.0wt%；
2. weighing organic reagent 1:60.0-90.0wt% dehydrated alcohol, 0.5-8.0wt% silicon surface active agent and 8.0- in proportion
35.0wt% dioxanes；
3. the weight ratio of organic reagent 1 and solid powder is 1:1-2:1；
4. the nano silver weighed up and nanometer titanium dioxide titanium valve are poured into, after organic reagent 1 is mixed and stirred for uniformly in 300-
It is uniformly dispersed under 1000 revs/min of revolving speed, then um porous silica is added again, high-speed stirred 3-6 hours immediately,
It is separated again with tube centrifuge, the mixed-powder for being sunken to tube wall is dried in vacuum drying oven at 35-45 DEG C, cross 200 meshes, i.e.,
Obtain the composite antibacterial coating mixed-powder containing silica；
5. weighing organic reagent 2:10.0-38.0wt% ethyl cellulose, 30.0-68.0wt% terpinol and 8.0- in proportion
35.0wt% dehydrated alcohol；
6. the weight ratio of organic reagent 2 and the composite antibacterial coating mixed-powder containing silica is 1:3-1:10；
7. organic reagent 2 is mixed and after stirring and dissolving is complete under the conditions of 45 DEG C, by what is weighed up containing silica
Composite antibacterial coating mixed-powder pours into, and is uniformly dispersed under 300-1000 revs/min of revolving speed, then is carried out with spray dryer
Spray drying crosses 200 meshes to get the composite antibacterial coating containing silica.
4. a kind of preparation method of composite antibacterial coating containing silica described in claim 1, which is characterized in that including
Following steps:
1) nanometer Ag is screened2O2: by nanometer Ag2O2Particle pours into ethanol solution, is dispersed 5-10 minutes with high speed disperser,
It is separated 2-3 times with high speed tube centrifuge again；
2) it prepares nanometer titanium dioxide titanium valve: utilizing Ti (NO)4、TiO2With TiO (NO)2One or more of do raw material, adopt
Nanometer titanium dioxide titanium valve is prepared with rf induction plasma, the nano-titanium dioxide powder diameter of preparation is in 5-50nm；
3) preparation of the composite antibacterial coating containing silica:
1. weighing solid powder in proportion: the nanometer Ag of 12.0-25.0wt%2O2, the nano-titanium dioxide of 18.0-32.0wt%
Powder, the ultra-fine porous silica of 28.0-58.0wt%, other metal powders of 0-30.0wt%；
2. weighing organic reagent 1:60.0-90.0wt% dehydrated alcohol, 0.5-8.0wt% silicon surface active agent and 8.0- in proportion
35.0wt% dioxanes；
3. the weight ratio of organic reagent 1 and solid powder is 1:1-2:1；
4. the nano silver weighed up and nanometer titanium dioxide titanium valve are poured into, after organic reagent 1 is mixed and stirred for uniformly in 300-
It is uniformly dispersed under 1000 revs/min of revolving speed, then um porous silica is added again, high-speed stirred 3-6 hours immediately,
It is separated again with tube centrifuge, the mixed-powder for being sunken to tube wall is dried in vacuum drying oven at 35-45 DEG C, cross 200 meshes, i.e.,
Obtain the composite antibacterial coating mixed-powder containing silica；
5. weighing organic reagent 2:10.0-38.0wt% ethyl cellulose, 30.0-68.0wt% terpinol and 8.0- in proportion
35.0wt% dehydrated alcohol；
6. the weight ratio of organic reagent 2 and the composite antibacterial coating mixed-powder containing silica is 1:3-1:10；
7. organic reagent 2 is mixed and after stirring and dissolving is complete under the conditions of 45 DEG C, by what is weighed up containing silica
Composite antibacterial coating mixed-powder pours into, and is uniformly dispersed under 300-1000 revs/min of revolving speed, then is carried out with spray dryer
Spray drying crosses 200 meshes to get the composite antibacterial coating containing silica.
5. a kind of preparation method of the composite antibacterial coating containing silica described in claim 2-4, it is characterised in that: institute
That states prepares nano silver or screening nanometer Ag2O, partial size are 5-15 nanometers；Described prepares nanometer titanium dioxide titanium valve, partial size 5-
15 nanometers.
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| JP2021178954A (en) * | 2020-05-13 | 2021-11-18 | 新福光塗裝工程股▲分▼有限公司 | Antimicrobial coating material, method for producing antimicrobial coating material, antimicrobial coating, and antivirus tape |
| CN114106663A (en) * | 2021-12-25 | 2022-03-01 | 烟台恒诺新材料有限公司 | Anti-adhesion nano ceramic coating and preparation method thereof |
| CN115044239A (en) * | 2022-06-29 | 2022-09-13 | 武汉苏泊尔炊具有限公司 | Antibacterial composite material for pot, manufacturing method thereof and pot |
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