CN101067056A - Nanometer ecological paint - Google Patents
Nanometer ecological paint Download PDFInfo
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- CN101067056A CN101067056A CN 200710015893 CN200710015893A CN101067056A CN 101067056 A CN101067056 A CN 101067056A CN 200710015893 CN200710015893 CN 200710015893 CN 200710015893 A CN200710015893 A CN 200710015893A CN 101067056 A CN101067056 A CN 101067056A
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- nano
- dispersion
- titanium oxide
- coating
- nano titanium
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Abstract
The present invention relates to nanometer paint, and is especially one kind of nanometer ecological paint. The nanometer ecological paint is prepared through the following three steps: 1. preparing coating liquid through dissolving NaCl, NaHCO3, KCl, K2HPO4.3H2O, MgCl.6H2O, CaCl2 and Na2SO4 in water; 2. compounding nanometer titania dispersing liquid; and 3. compounding the paint. The present invention features that nanometer titania is dispersed in the special coating liquid under certain reaction condition so that porous hydroxyapatite film is formed on the surface of nanometer titania particle to raise the dispersivity and weather resistance of nanometer titania particle while maintaining high self-cleaning, sterilizing and air-purifying functions.
Description
(1) technical field
The present invention relates to a kind of nano paint, particularly a kind of nano ecological paint.
(2) background technology
At present, China's problem of environmental pollution is very outstanding, and particularly urban atmospheric pollution is quite serious.Industrial coal discharges obnoxious flavoures such as a large amount of sulfurous gas, carbon monoxide; With the high speed development of automotive industry, nitride that motor vehicle exhaust is a large amount of and carbon monoxide make the big and medium-sized cities atmospheric pollution serious; Many house decorative materials and furniture can slow release go out such as small molecules harmful organic substances such as aldehydes, phenols, alcohols, and central air-conditioning also produces niff and propagates pathogenic microorganism.
Reducing pollution, protecting environment is the problem of the public's growing interest, and the photochemical catalysis ecological architectural material with degradation of contaminant function will become the main product of building material industry in this century.More and more about the report of light catalyzed coating aspect in recent years.With nano-TiO
2, nano material such as ZnO adds in the coating, not only the abrasion resistance of coating, ageing resistance and contamination resistance can all have remarkable enhancing; And the obnoxious flavour in can also purifying air, sterilization and disinfection.
Nano titanium dioxide photocatalyst has advantages such as chemical property is stable, resistance to oxidation, safety non-toxic.Under UV-irradiation, it is right to produce unbound electron-hole, with oxygen that is adsorbed on titanium dioxide surface and water reaction, produces active oxygen and free radical.These active oxygens and free radical have very strong oxidative decomposition capacity, oxidation operation can be decomposed into CO
2And H
2O is with atmospheric polluting material NO
x, SO
x, NH
3And H
2S etc. are oxidized to innoxious substance, also can penetrate and be adsorbed in TiO
2Microbial cell walls such as the bacterium, mould on surface, thereby kill bacteria effectively, and then air carried out decontamination, sterilization, reach the effect that purifies air.
But existing nanometer titania coating also has following deficiency:
Add nano titanium oxide in coating, can give coating automatically cleaning, sterilization, new function such as purify air, titanium dioxide also can decompose the organic composition in the coating simultaneously, thereby reduces the weathering resistance of coating.
Because the nano titanium oxide particle diameter is very little, dispersed bad in coating, easily to reunite, its cleaning, germ-resistant performance do not reach ideal effect.
(3) summary of the invention
The present invention provides a kind of nano ecological paint with good dispersion, stability and weathering resistance in order to overcome the deficiency of above technology, with the function that improves this coating automatically cleaning, sterilization, purifies air.
The present invention realizes by following measure:
Nano ecological paint of the present invention is characterized in that adopting following steps to make:
(1) preparation of covering liquid: with NaCl, NaHCO
3, KCl, K
2HPO
43H
2O, MgCl6H
2O, CaCl
2, Na
2SO
4Be dissolved in the water, be mixed with covering liquid;
Each ionic concentration is in the covering liquid:
| Composition | Na + | K + | Ca 2+ | Mg 2 | Cl - | HPO 4 2- | HCO 4 - | SO 4 2- |
| Concentration mmol/l | 142 | 5.0 | 2.5 | 1.5 | 147.8 | 1.0 | 4.2 | 0.5 |
(2) preparation of nano titanium oxide dispersion: nano titanium oxide, dispersion agent are added in the covering liquid, making buffer reagent adjusting pH value with trihydroxy-aminomethane and hydrochloric acid is about 7.3, stir, heating, 40 ℃ of reactions of constant temperature 2h filters washing, at last filter cake is distributed in the water again, gets nano titanium oxide dispersion.The add-on of nano titanium oxide, dispersion agent is respectively 5-20wt%, the 0.1-2wt% of dispersion liquid;
(3) coating preparation: Jiang Shui, face/filler, dispersion agent, defoamer, film coalescence aid, flow agent, neutralizing agent and nano titanium oxide dispersion mix, regulating the pH value is 8-10, high-speed stirring 10-50min grinds 30-60min through sand mill or three-roller again, obtains slurry; Add entry, emulsion, defoamer etc. and stir in slurry, add thickening material then, regulate pH value 9-10, coating is transferred to appropriate viscosity, stirring at low speed 30min obtains nano ecological paint at last; The mass percent that water, dispersion agent, face/filler, defoamer, film coalescence aid, flow agent, nano titanium oxide, emulsion, thickening material, neutralizing agent account for coating in the prepared coating is respectively 20-45,0.1-2,20-45,0.1-2,1-5,0.1-2,0.5-5,10-30,0.2-4,0.1-2wt%.
In order to improve the dispersiveness of nano-titania particle, in the step (2), adopt mechanical force dispersion method, ultrasonic dispersion or chemical dispersion method to disperse, the dispersion agent that is adopted is one or more of polyacrylate, polyphosphoric acid salt, polyoxyethylene glycol.
The nano ecological paint of the invention described above, described nano-titania particle surface forms the porous hydroxyapatite film in covering liquid.
The nano ecological paint of the invention described above, the clad ratio on its nano-titania particle surface are 0.1-99%.
Titanium dioxide can decompose the organic pollutant of absorption, also can decompose simultaneously the organic composition in the coating, so in coating (particularly exterior coating), all use the relatively poor rutile titanium dioxide of photo-catalysis capability, and its surface coated processing.Therefore, should carry out necessary surface treatment, to improve the weathering resistance of nano paint to the nano titanium oxide in the nano paint.
Hydroxyapatite is a kind of traditional bioceramic material, for protein, organic pollutant etc. high affinity is arranged.If support the hydroxyapatite coating layer of vesicular structure on the nano-titania particle surface, can well improve dispersiveness and the weathering resistance of nano titanium oxide in coating, simultaneously because coating layer is that vesicular structure and this coating layer have very strong adsorptive power to organic molecule, so the photo-catalysis capability of titanium dioxide is still very strong.
Main innovate point of the present invention is, nano titanium oxide is dispersed in the covering liquid of special preparation, control certain reaction conditions, form the porous hydroxyapatite films, both improved dispersiveness and the weathering resistance of nano-titania particle in coating on the titanium dioxide nano-particle surface; Simultaneously, form the film of vesicular structure on nano-titania particle surface, the function that makes it still have higher automatically cleaning, sterilization, purify air.
(4) embodiment
Embodiment 1:
The preparation of covering liquid: with NaCl, NaHCO
3, KCl, K
2HPO
43H
2O, MgCl6H
2O, CaCl
2, Na
2SO
4Be dissolved in the water, be mixed with covering liquid.
Each ionic concentration of covering liquid is:
| Composition | Na + | K + | Ca 2+ | Mg 2+ | Cl - | HPO 4 2- | HCO 4 - | SO 4 2- |
| Concentration mmol/l | 142 | 5.0 | 2.5 | 1.5 | 147.8 | 1.0 | 4.2 | 0.5 |
The preparation of nano titanium oxide dispersion: prescription: nano titanium oxide (Detitanium-ore-type) 5g, polyacrylic acid potassium 0.10g, covering liquid 50ml.
Nano titanium oxide, dispersion agent are added in the covering liquid, and making buffer reagent adjusting pH value with trihydroxy-aminomethane and hydrochloric acid is about 7.3, stirs, heating, 40 ℃ of reactions of constant temperature 2h filters, washing is distributed to filter cake in the 50ml water at last again, gets nano titanium oxide dispersion.
The coating preparation: Jiang Shui, face/filler, dispersion agent, defoamer, film coalescence aid, flow agent, neutralizing agent and nano titanium oxide dispersion mix, regulating the pH value is 8-10, high-speed stirring 10-50min grinds 30-60min through sand mill or three-roller again, obtains slurry.
Add entry, emulsion, defoamer etc. and stir in slurry, add thickening material then, regulate pH value 9-10, coating is transferred to appropriate viscosity, stirring at low speed 30min obtains nano ecological paint.
The mass percent that water, dispersion agent, face/filler, defoamer, film coalescence aid, flow agent, nano titanium oxide, emulsion, thickening material, neutralizing agent account for coating in the coating is respectively 35,0.5,39,0.5,2,0.5,1,20,1,0.5wt%.
Embodiment 2:
The preparation of covering liquid: with NaCl, NaHCO
3, KCl, K
2HPO
43H
2O, MgCl6H
2O, CaCl
2, Na
2SO
4Be dissolved in the water, be mixed with covering liquid.
Each ionic concentration of covering liquid is:
| Composition | Na + | K + | Ca 2+ | Mg 2+ | Cl - | HPO 4 2- | HCO 4 - | SO 4 2- |
| Concentration mmol/l | 142 | 5.0 | 2.5 | 1.5 | 147.8 | 1.0 | 4.2 | 0.5 |
The preparation of nano titanium oxide dispersion: prescription: nano titanium oxide (Detitanium-ore-type) 5g, polyacrylic acid potassium 0.50g, covering liquid 100ml.
Nano titanium oxide, dispersion agent are added in the 50ml covering liquid, making buffer reagent adjusting pH value with trihydroxy-aminomethane and hydrochloric acid is about 7.3, stir, heating, 40 ℃ of reactions of constant temperature 2h filters, washing, at last filter cake is distributed in the 50ml covering liquid again, coats processing once more, obtain the 50ml nano titanium oxide dispersion at last.
The coating preparation: Jiang Shui, face/filler, dispersion agent, defoamer, film coalescence aid, flow agent, neutralizing agent and nano titanium oxide dispersion mix, regulating the pH value is 8-10, high-speed stirring 10-50min grinds 30-60min through sand mill or three-roller again, obtains slurry.
Add entry, emulsion, defoamer and stir in slurry, add thickening material then, regulate pH value 9-10, coating is transferred to appropriate viscosity, stirring at low speed 30min obtains nano ecological paint.
The mass percent that water, dispersion agent, face/filler, defoamer, film coalescence aid, flow agent, nano titanium oxide, emulsion, thickening material, neutralizing agent account for coating in the coating is respectively 35,0.5,39,0.5,2,0.5,1,20,1,0.5wt%.
Embodiment 3:
The preparation of covering liquid: with NaCl, NaHCO
3, KCl, K
2HPO
43H
2O, MgCl6H
2O, CaCl
2, Na
2SO
4Deng being dissolved in the water, be mixed with covering liquid.
Each ionic concentration of covering liquid is:
| Composition | Na + | K + | Ca 2+ | Mg 2+ | Cl - | HPO 4 2- | HCO 4 - | SO 4 2- |
| Concentration mmol/l | 142 | 5.0 | 2.5 | 1.5 | 147.8 | 1.0 | 4.2 | 0.5 |
The preparation of nano titanium oxide dispersion: prescription: nano titanium oxide (Detitanium-ore-type) 10g, polyacrylic acid potassium 1.00g, covering liquid 200ml.
Nano titanium oxide, dispersion agent are added in the 100ml covering liquid, making buffer reagent adjusting pH value with trihydroxy-aminomethane and hydrochloric acid is about 7.3, stir, heating, 40 ℃ of reactions of constant temperature 2h filters, washing, at last filter cake is distributed in the 100ml covering liquid again, coats processing once more, obtain the 100ml nano titanium oxide dispersion at last.
The coating preparation: Jiang Shui, face/filler, dispersion agent, defoamer, film coalescence aid, flow agent, neutralizing agent and nano titanium oxide dispersion mix, regulating the pH value is 8-10, high-speed stirring 10-50min grinds 30-60min through sand mill or three-roller again, obtains slurry.
Add entry, emulsion, defoamer and stir in slurry, add thickening material then, regulate pH value 9-10, coating is transferred to appropriate viscosity, stirring at low speed 30min obtains nano ecological paint.
The mass percent that water, dispersion agent, face/filler, defoamer, film coalescence aid, flow agent, nano titanium oxide, emulsion, thickening material, neutralizing agent etc. account for coating in the coating is respectively 35,0.5,38,0.5,2,0.5,2,20,1,0.5wt%.
Embodiment 4:
The preparation of nano titanium oxide dispersion: prescription: nano titanium oxide (Detitanium-ore-type) 5g, polyacrylic acid potassium 0.50g, water 50ml.
Nano titanium oxide, dispersion agent are added in the entry, disperse, get nano titanium oxide dispersion.
The coating preparation: Jiang Shui, face/filler, dispersion agent, defoamer, film coalescence aid, flow agent, neutralizing agent and nano titanium oxide dispersion mix, regulating the pH value is 8-10, high-speed stirring 10-50min grinds 30-60min through sand mill or three-roller again, obtains slurry.
Add entry, emulsion, defoamer and stir in slurry, add thickening material then, regulate pH value 9-10, coating is transferred to appropriate viscosity, stirring at low speed 30min obtains nano ecological paint.
The mass percent that water, dispersion agent, face/filler, defoamer, film coalescence aid, flow agent, nano titanium oxide, emulsion, thickening material, neutralizing agent etc. account for coating in the coating is respectively 35,0.5,39,0.5,2,0.5,1,20,1,0.5wt%.
The test of nano ecological paint weathering resistance
The atmospheric exposure test of nano paint is undertaken by GB/T1865-1997 " paint and varnish artificial weathering and man-made radiation expose (filterable xenon arc radiation) " regulation, result's evaluation is undertaken by GB/T1766-1995 " ranking method of paint and varnish coating aging ", the evaluation of wherein variable color grade is undertaken by the 4.2.2 among the GB/T 1766-1995, and measurement result sees Table 1.
The weathering resistance test result of table 1 nano paint
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Digestion time | 600h | 600h | 600h | 600h |
| Efflorescence | 1 grade | 1 grade | 1 grade | 2 grades |
| Variable color | 1 grade | 1 grade | 1 grade | 2 grades |
| Appearance change | The paint film no change | The paint film no change | The paint film no change | The paint film no change |
Nano ecological paint is to the organic pollutant degradation performance test:
The test nano paint is under ultra violet lamp in homemade quartz reactor, and the degradation property of PARA FORMALDEHYDE PRILLS(91,95) is estimated its photocatalysis performance and to the disposal efficiency of atmospheric polluting material, test result sees Table 2.
The test of nano ecological paint anti-microbial property:
Because China's antibiotic paint antibacterial test standard is still among formulating, at this anti-microbial property with reference to JC/T 897-2002 " antibacterial ceramic products anti-microbial property " and the prepared coating of QB/T 2591-2003 " antibiotic plastic anti-microbial property test method and antibacterial effect " test.With intestinal bacteria (Gram-negative bacteria) and streptococcus aureus (gram-positive microorganism) is the test bacterium, uses the contact process culturing bacterium, calculates the viable bacteria rate, and test result sees Table 2.
The photocatalysis performance of table 2 coating and anti-microbial property test result
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Degradation Formaldehyde rate (%) | 43.2 | 55.7 | 66.9 | 40.0 |
| Antibiotic rate (%) | 93.2 | 94.9 | 97.5 | 90.6 |
Claims (4)
1, a kind of nano ecological paint is characterized in that adopting following steps to make:
(1) preparation of covering liquid: with NaCl, NaHCO
3, KCl, K
2HPO
43H
2O, MgCl6H
2O, CaCl
2, Na
2SO
4Be dissolved in the water, be mixed with covering liquid;
Each ionic concentration of covering liquid is:
Composition Na
+K
+Ca
2+Mg
2+Cl HPO
4 2-HCO
4 -SO
4 2-
Concentration mmol/l 142 5.0 2.5 1.5 147.8 1.0 4.2 0.5
(2) preparation of nano titanium oxide dispersion: nano titanium oxide, dispersion agent are added in the covering liquid, making buffer reagent adjusting pH value with trihydroxy-aminomethane and hydrochloric acid is about 7.3, stir, heating, 40 ℃ of reactions of constant temperature 2h filters washing, at last filter cake is distributed in the water again, gets nano titanium oxide dispersion; The add-on of nano titanium oxide, dispersion agent is respectively 5-20wt%, the 0.1-2wt% of dispersion liquid;
(3) coating preparation: Jiang Shui, face/filler, dispersion agent, defoamer, film coalescence aid, flow agent, neutralizing agent and nano titanium oxide dispersion mix, regulating the pH value is 8-10, high-speed stirring 10-50min grinds 30-60min through sand mill or three-roller again, obtains slurry; Add entry, emulsion, defoamer and stir in slurry, add thickening material then, regulate pH value 9-10, coating is transferred to appropriate viscosity, stirring at low speed 30min obtains nano ecological paint at last; The mass percent that water, dispersion agent, face/filler, defoamer, film coalescence aid, flow agent, nano titanium oxide, emulsion, thickening material, neutralizing agent account for coating in the coating is respectively 20-45,0.1-2,20-45,0.1-2,1-5,0.1-2,0.5-5,10-30,0.2-4,0.1-2wt%.
2. nano ecological paint according to claim 1, it is characterized in that: in the step (2), adopt mechanical force dispersion method, ultrasonic dispersion or chemical dispersion method to disperse, the dispersion agent that is adopted is one or more of polyacrylate, polyphosphoric acid salt, polyoxyethylene glycol.
3. nano ecological paint according to claim 1 is characterized in that: described nano-titania particle surface forms the porous hydroxyapatite film in covering liquid.
4. nano ecological paint according to claim 3 is characterized in that: the clad ratio on nano-titania particle surface is 0.1-99%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100158937A CN100535063C (en) | 2007-06-14 | 2007-06-14 | Nanometer ecological paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100158937A CN100535063C (en) | 2007-06-14 | 2007-06-14 | Nanometer ecological paint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101067056A true CN101067056A (en) | 2007-11-07 |
| CN100535063C CN100535063C (en) | 2009-09-02 |
Family
ID=38879760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100158937A Expired - Fee Related CN100535063C (en) | 2007-06-14 | 2007-06-14 | Nanometer ecological paint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100535063C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646376A (en) * | 2012-05-04 | 2012-08-22 | 重庆新华化工有限公司 | Titanium dioxide special for retro-reflective materials |
| CN103194935A (en) * | 2012-03-31 | 2013-07-10 | 宁波亚洲浆纸业有限公司 | Production process of antibacterial coating, production process of antibacterial paper and antibacterial paper |
| CN103740209A (en) * | 2014-01-26 | 2014-04-23 | 南通广泰生化制品有限公司 | Method for preparing microporous type nano coating |
| CN103881421A (en) * | 2014-03-07 | 2014-06-25 | 江苏双乐化工颜料有限公司 | Nanometer surface modifier and preparation method and using method thereof |
| CN104696947A (en) * | 2015-02-15 | 2015-06-10 | 北京福源天航科技有限公司 | Method for recycling of fuel coal catalyst of chain-grate boiler |
| CN109423206A (en) * | 2017-06-20 | 2019-03-05 | 金伟明 | A kind of nano ecological paint and preparation method thereof |
| CN111545060A (en) * | 2020-05-18 | 2020-08-18 | 武汉创海森环保科技有限公司 | Spraying construction method and equipment for removing indoor decoration pollution by using hydroxyl |
| CN113773713A (en) * | 2021-09-29 | 2021-12-10 | 广东森格安环保新材料科技有限公司 | Nano antibacterial composite material and preparation method thereof |
-
2007
- 2007-06-14 CN CNB2007100158937A patent/CN100535063C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103194935A (en) * | 2012-03-31 | 2013-07-10 | 宁波亚洲浆纸业有限公司 | Production process of antibacterial coating, production process of antibacterial paper and antibacterial paper |
| CN102646376A (en) * | 2012-05-04 | 2012-08-22 | 重庆新华化工有限公司 | Titanium dioxide special for retro-reflective materials |
| CN103740209A (en) * | 2014-01-26 | 2014-04-23 | 南通广泰生化制品有限公司 | Method for preparing microporous type nano coating |
| CN103740209B (en) * | 2014-01-26 | 2016-01-20 | 南通广泰生化制品有限公司 | A kind of preparation method of microporous nano coating |
| CN103881421A (en) * | 2014-03-07 | 2014-06-25 | 江苏双乐化工颜料有限公司 | Nanometer surface modifier and preparation method and using method thereof |
| CN103881421B (en) * | 2014-03-07 | 2015-07-22 | 江苏双乐化工颜料有限公司 | Nanometer surface modifier and preparation method and using method thereof |
| CN104696947A (en) * | 2015-02-15 | 2015-06-10 | 北京福源天航科技有限公司 | Method for recycling of fuel coal catalyst of chain-grate boiler |
| CN104696947B (en) * | 2015-02-15 | 2017-03-01 | 北京福源天航科技有限公司 | A kind of chain furnace coal combustion catalyst circulation utilization method |
| CN109423206A (en) * | 2017-06-20 | 2019-03-05 | 金伟明 | A kind of nano ecological paint and preparation method thereof |
| CN111545060A (en) * | 2020-05-18 | 2020-08-18 | 武汉创海森环保科技有限公司 | Spraying construction method and equipment for removing indoor decoration pollution by using hydroxyl |
| CN113773713A (en) * | 2021-09-29 | 2021-12-10 | 广东森格安环保新材料科技有限公司 | Nano antibacterial composite material and preparation method thereof |
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| CN100535063C (en) | 2009-09-02 |
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Assignee: Qingzhou better Chemical Co., Ltd. Assignor: University of Jinan Contract record no.: 2010370000407 Denomination of invention: Nanometer ecological paint Granted publication date: 20090902 License type: Exclusive License Open date: 20071107 Record date: 20100729 |
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Granted publication date: 20090902 Termination date: 20110614 |