CN103756487A - Microporous nano-coating - Google Patents
Microporous nano-coating Download PDFInfo
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- CN103756487A CN103756487A CN201410038426.6A CN201410038426A CN103756487A CN 103756487 A CN103756487 A CN 103756487A CN 201410038426 A CN201410038426 A CN 201410038426A CN 103756487 A CN103756487 A CN 103756487A
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Abstract
The invention relates to a microporous nano-coating which is characterized by comprising the following components: (1) 1%-40% of a porous material, (2) 1%-40% of nanoparticles which are selected from nano-titanium oxide, nano-silver, nano-aluminum or composition thereof, (3) 5%-80% of a film-forming material which is acrylic resin, (4) additives which comprise 1%-2% of a dispersant, 1%-2% of a defoamer and 1%-3% of a thickener which is selected from hydroxyethyl cellulose with the molecular weight of 30,000-100,000, and (5) 5%-15% of de-ionized water. According to the microporous nano-coating, the nanoparticles in the coating have adsorption and catalysis effects, and antibacterial materials can be orderly released, so that the coating has the long-acting effects of adsorbing and degrading harmful substances and resisting bacteria.
Description
Technical field
The invention belongs to nano material technology, be specifically related to a kind of microporous nano coating.
Background technology
The nano material that composite nano materials is about to difference in functionality is integrated together, thereby obtain the synergistic effect outside single-material physico-chemical property, the absorption band gap of functionalization as easier in surface, more binding site, higher specific surface area, more high-k, variation and catalytic activity etc.Wherein, the nano composite structure of metal and inorganics, because combine high conductivity and the intrinsic physical and chemical performance of inorganic materials of metal, has wide research and application prospect (Shanghai Communications University's Ph D dissertation in 2009 in fields such as energy storage, Industrial Catalysis, function ceramics, bio-pharmaceuticals; Desalination, 2013,308:15～33).And in various nanostructures, porous material is owing to having higher surface-area and being beneficial to the advantage such as duct of gas solution infiltration, and be widely studied application.Therefore, the porous nanometer structure of development of metallic/inorganic materials has important Research Significance and application prospect.
At present, nano material has started to have had application widely in coating.Because nanoparticle has quantum size effect, small-size effect, surface effects and macro quanta tunnel effect, thereby show much special character.When these materials are added among traditional coating, just can produce good effect, as long acting antibiotic performance, uv-shielding capacity, photocatalysis performance etc., and increase some inherent naturies of coating simultaneously, as film snappiness, coating hardness, sticking power, petrol-resistance, performances such as alkali-resistivity etc.Porous material of the present invention is the three-dimensional open-framework that carbon coated copper/metal oxide has nano-scale, product pattern homogeneous, controlled, and preparation method is simple, with low cost, environmental friendliness, and set it as a component and add in coating, nanoparticle can easily be adsorbed and to be difficult for absorption mutually agglomerating by porous mass.The existence of porous mass, can in coating, form effective micro channel, make the nanoparticle of film inside also can bring into play the effect of absorption and catalysis, be also conducive to the orderly release of antimicrobial substance, thereby make coating there is the effect of long-acting absorption degradation objectionable impurities and long acting antibiotic simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of microporous nano coating, it is characterized in that comprising following component:
(1) porous material, the content of described porous material is 1-40%.
(2) nanoparticle, content is 1-40%, described nanoparticle be selected from nano-titanium oxide, nanometer silver, nano aluminum or its composition.
(3) filmogen, content is 5-80%, described filmogen is acrylic resin.
(4) additive, described additive comprises the thickening material of 1-2% dispersion agent, 1-2% defoamer and 1-3%, and described thickening material is selected from, and molecular weight is the Natvosol of 3-10 ten thousand.
(5) deionized water, the content of described deionized water is 5-15%.
Described porous material is prepared by following methods:
Step 1, chooses nano metal mixture
Described nano metal mixture is by nanometer zinc acetate and nanometer venus crystals phosphor composing, and the mol ratio of described zinc acetate and venus crystals is 2:1.
Step 2, the preparation of the first solution
The nano metal mixture of step 1 is mixed with tensio-active agent and ethylene glycol solution, mass ratio is: nano metal mixture: tensio-active agent: ethylene glycol solution=(4-6): (3-5): 300, mixed solution speed with 600-1000r/min in 60-90 ℃ of oil bath is stirred to 10-30 minute, and naturally cooling makes the first solution.
Step 3: the preparation of the second solution
Ethylene glycol and oxalic acid are mixed under normal temperature, make the second solution, the mass ratio of described ethylene glycol and oxalic acid is 100:3.
Step 4: the preparation of composite precursor
Prepared step 3 the second solution is splashed in prepared the first solution of step 2 with the speed of dripping of 3-10mL/min, with the speed 60-100 ℃ of constant temperature of 600-1000r/min, stir 4h; After reaction finishes, resultant of reaction is respectively washed 3 times with deionized water and dehydrated alcohol respectively, centrifugal collection, in baking oven, 80 ℃ of dry 6h, obtain composite precursor.The mass ratio of described the second solution and the first solution is: 1:3-4.
Step 5: the preparation of the coated Cu/ZnO composite porous material of carbon
By obtained step 4 composite precursor as in tube furnace, passing to hydrogen volume content is the X/H2 atmosphere of 1-10%, with the speed of 5 ℃/min, be warming up to 200 ℃, constant temperature keeps 2h, then with 5 ℃/min, rise to 500 ℃, constant temperature keeps 2h, obtains the coated Cu/ZnO composite porous material of carbon, described X is that purity is not less than the one in 99.9% nitrogen, argon gas, helium, and the volume content of hydrogen is at 1%-10%.
2. a kind of microporous nano coating as claimed in claim 1, is characterized in that the particle diameter of described nanometer zinc acetate and nanometer venus crystals powder is 1-50nm, and the porosity of prepared porous material is more than 86%, and the size of hole is 1-25nm.
3. a kind of microporous nano coating as claimed in claim 1, it is characterized in that described tensio-active agent be selected from a kind of in polyvinylpyrrolidone (PVP), cetyl trimethylammonium bromide (CTAB), chlorination trimethylammonium cetyltrimethyl ammonium (CTAC), polyethylene oxide-poly(propylene oxide)-polyethylene oxide triblock copolymer (P123), polyoxyethylene-poly-oxypropylene polyoxyethylene triblock polymer (F127) or with arbitrarily than mixture.
4. a kind of microporous nano coating as claimed in claim 1, the particle diameter that it is characterized in that described nanoparticle is 1-10nm.Beneficial effect of the present invention is mainly:
Porous material of the present invention is the three-dimensional open-framework that carbon coated copper/metal oxide has nano-scale, product pattern homogeneous, controlled, and preparation method is simple, with low cost, environmental friendliness, and set it as a component and add in coating, nanoparticle can easily be adsorbed and to be difficult for absorption mutually agglomerating by porous mass.The existence of porous mass, can in coating, form effective micro channel, make the nanoparticle of film inside also can bring into play the effect of absorption and catalysis, be also conducive to the orderly release of antimicrobial substance, thereby make coating there is the effect of long-acting absorption degradation objectionable impurities and long acting antibiotic simultaneously.
Embodiment
A kind of microporous nano coating, is characterized in that comprising following component:
(1) porous material, the content of described porous material is 1-40%.
(2) nanoparticle, content is 1-40%, described nanoparticle be selected from nano-titanium oxide, nanometer silver, nano aluminum or its composition.
(3) filmogen, content is 5-80%, described filmogen is acrylic resin.
(4) additive, described additive comprises the thickening material of 1-2% dispersion agent, 1-2% defoamer and 1-3%, and described thickening material is selected from, and molecular weight is the Natvosol of 3-10 ten thousand.
(5) deionized water, the content of described deionized water is 5-15%.
Described porous material is prepared by following methods:
Step 1, chooses nano metal mixture
Described nano metal mixture is by nanometer zinc acetate and nanometer venus crystals phosphor composing, and described zinc acetate and venus crystals are respectively 0.02mol and 0.01mol.
Step 2, the preparation of the first solution
The nano metal mixture of step 1 is mixed with 4g tensio-active agent and 300ml ethylene glycol solution, mixed solution speed with 800r/min in 80 ℃ of oil baths is stirred 15 minutes, naturally cooling makes the first solution.
Step 3: the preparation of the second solution
100 ethylene glycol and 0.03mol oxalic acid are mixed under normal temperature, make the second solution.
Step 4: the preparation of composite precursor
Prepared step 3 the second solution is splashed in prepared the first solution of step 2 with the speed of dripping of 5mL/min, with 80 ℃ of constant temperature of speed of 800r/min, stir 4h; After reaction finishes, resultant of reaction is respectively washed 3 times with deionized water and dehydrated alcohol respectively, centrifugal collection, in baking oven, 80 ℃ of dry 6h, obtain composite precursor.The mass ratio of described the second solution and the first solution is: 1:3-4.
Step 5: the preparation of the coated Cu/ZnO composite porous material of carbon
By obtained step 4 composite precursor as in tube furnace, passing to hydrogen volume content is the X/H2 atmosphere of 1-10%, with the speed of 5 ℃/min, be warming up to 200 ℃, constant temperature keeps 2h, then with 5 ℃/min, rise to 500 ℃, constant temperature keeps 2h, obtains the coated Cu/ZnO composite porous material of carbon, described X is that purity is not less than the one in 99.9% nitrogen, argon gas, helium, and the volume content of hydrogen is at 1%-10%.
The particle diameter of described nanometer zinc acetate and nanometer venus crystals powder is 1-50nm, and the porosity of prepared porous material is more than 86%, and the size of hole is 1-25nm.
Described tensio-active agent be selected from a kind of in polyvinylpyrrolidone (PVP), cetyl trimethylammonium bromide (CTAB), chlorination trimethylammonium cetyltrimethyl ammonium (CTAC), polyethylene oxide-poly(propylene oxide)-polyethylene oxide triblock copolymer (P123), polyoxyethylene-poly-oxypropylene polyoxyethylene triblock polymer (F127) or with arbitrarily than mixture.
The particle diameter of described nanoparticle is 1-10nm.
Choose 800 object 40g porous materials, 16g nano-titanium oxide, 4 grams of nano-silver powders, 80g acrylic resin, 3g dispersion agent and 3g defoamer, 4g Natvosol and 30g deionized water, as in container, adopt mechanical stirring to mix, and form stable coating.Described coating has more micro channel, has long-acting absorption, the organic obnoxious flavour of catalyzed degradation and bactericidal property.Described coating water at normal temperature contact angle is greater than 120 degree.
The water-fast experimental results of GB/T1733-93 is 360 hours nothing difference;
Alcohol resistance (60% ethanolic soln) test result of GB1727-79 is 100 hours nothing difference.
Below in conjunction with specific embodiment, technical scheme of the present invention is done further and introduced in detail; but protection scope of the present invention is not limited to this; those skilled in the art makes some nonessential improvement and adjustment according to the content of the invention described above, all belongs to protection domain of the present invention.
Claims (4)
1. a microporous nano coating, is characterized in that comprising following component:
(1) porous material, the content of described porous material is 1-40%.
(2) nanoparticle, content is 1-40%, described nanoparticle be selected from nano-titanium oxide, nanometer silver, nano aluminum or its composition.
(3) filmogen, content is 5-80%, described filmogen is acrylic resin.
(4) additive, described additive comprises the thickening material of 1-2% dispersion agent, 1-2% defoamer and 1-3%, and described thickening material is selected from, and molecular weight is the Natvosol of 3-10 ten thousand.
(5) deionized water, the content of described deionized water is 5-15%.
Described porous material is prepared by following methods:
Step 1, chooses nano metal mixture
Described nano metal mixture is by nanometer zinc acetate and nanometer venus crystals phosphor composing, and the mol ratio of described zinc acetate and venus crystals is 2:1.
Step 2, the preparation of the first solution
The nano metal mixture of step 1 is mixed with tensio-active agent and ethylene glycol solution, mass ratio is: nano metal mixture: tensio-active agent: ethylene glycol solution=(4-6): (3-5): 300, mixed solution speed with 600-1000r/min in 60-90 ℃ of oil bath is stirred to 10-30 minute, and naturally cooling makes the first solution.
Step 3: the preparation of the second solution
Ethylene glycol and oxalic acid are mixed under normal temperature, make the second solution, the mass ratio of described ethylene glycol and oxalic acid is 100:3.
Step 4: the preparation of composite precursor
Prepared step 3 the second solution is splashed in prepared the first solution of step 2 with the speed of dripping of 3-10mL/min, with the speed 60-100 ℃ of constant temperature of 600-1000r/min, stir 4h; After reaction finishes, resultant of reaction is respectively washed 3 times with deionized water and dehydrated alcohol respectively, centrifugal collection, in baking oven, 80 ℃ of dry 6h, obtain composite precursor.The mass ratio of described the second solution and the first solution is: 1:3-4.
Step 5: the preparation of the coated Cu/ZnO composite porous material of carbon
By obtained step 4 composite precursor as in tube furnace, passing to hydrogen volume content is the X/H2 atmosphere of 1-10%, with the speed of 5 ℃/min, be warming up to 200 ℃, constant temperature keeps 2h, then with 5 ℃/min, rise to 500 ℃, constant temperature keeps 2h, obtains the coated Cu/ZnO composite porous material of carbon, described X is that purity is not less than the one in 99.9% nitrogen, argon gas, helium, and the volume content of hydrogen is at 1%-10%.
2. a kind of microporous nano coating as claimed in claim 1, is characterized in that the particle diameter of described nanometer zinc acetate and nanometer venus crystals powder is 1-50nm, and the porosity of prepared porous material is more than 86%, and the size of hole is 1-25nm.
3. a kind of microporous nano coating as claimed in claim 1, it is characterized in that described tensio-active agent be selected from a kind of in polyvinylpyrrolidone (PVP), cetyl trimethylammonium bromide (CTAB), chlorination trimethylammonium cetyltrimethyl ammonium (CTAC), polyethylene oxide-poly(propylene oxide)-polyethylene oxide triblock copolymer (P123), polyoxyethylene-poly-oxypropylene polyoxyethylene triblock polymer (F127) or with arbitrarily than mixture.
4. a kind of microporous nano coating as claimed in claim 1, the particle diameter that it is characterized in that described nanoparticle is 1-10nm.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105907118A (en) * | 2016-04-29 | 2016-08-31 | 苏州蔻美新材料有限公司 | Straw based porous material preparation method |
| US9648870B2 (en) | 2014-12-26 | 2017-05-16 | Industrial Technology Research Institute | Antimicrobial composite material and method for fabricating the same |
| CN110776818A (en) * | 2019-11-14 | 2020-02-11 | 深圳市冠为科技股份有限公司 | Adsorptive porous nano silver/aluminum oxide/polyester composite water-based coating agent and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5110422A (en) * | 1989-12-13 | 1992-05-05 | Office National D'etudes Et De Recherches Aerospatiales | Method for producing an adherent metal deposit on carbon, and mirror obtained by this method |
| CN1369529A (en) * | 2002-03-12 | 2002-09-18 | 深圳市尊业纳米材料有限公司 | Microporous nano composite paint |
| CN103268929A (en) * | 2013-06-04 | 2013-08-28 | 山东大学 | Carbon/copper/metal oxide composite porous material and preparation method and application thereof |
-
2014
- 2014-01-26 CN CN201410038426.6A patent/CN103756487B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5110422A (en) * | 1989-12-13 | 1992-05-05 | Office National D'etudes Et De Recherches Aerospatiales | Method for producing an adherent metal deposit on carbon, and mirror obtained by this method |
| CN1369529A (en) * | 2002-03-12 | 2002-09-18 | 深圳市尊业纳米材料有限公司 | Microporous nano composite paint |
| CN103268929A (en) * | 2013-06-04 | 2013-08-28 | 山东大学 | Carbon/copper/metal oxide composite porous material and preparation method and application thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9648870B2 (en) | 2014-12-26 | 2017-05-16 | Industrial Technology Research Institute | Antimicrobial composite material and method for fabricating the same |
| CN105907118A (en) * | 2016-04-29 | 2016-08-31 | 苏州蔻美新材料有限公司 | Straw based porous material preparation method |
| CN110776818A (en) * | 2019-11-14 | 2020-02-11 | 深圳市冠为科技股份有限公司 | Adsorptive porous nano silver/aluminum oxide/polyester composite water-based coating agent and preparation method thereof |
| CN110776818B (en) * | 2019-11-14 | 2021-07-20 | 深圳市冠为科技股份有限公司 | Adsorptive porous nano silver/aluminum oxide/polyester composite water-based coating agent and preparation method thereof |
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| CN103756487B (en) | 2016-05-04 |
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