CN101831207B - All-weather nano photocatalyst product for controlling decoration pollution - Google Patents
All-weather nano photocatalyst product for controlling decoration pollution Download PDFInfo
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- CN101831207B CN101831207B CN 201010163377 CN201010163377A CN101831207B CN 101831207 B CN101831207 B CN 101831207B CN 201010163377 CN201010163377 CN 201010163377 CN 201010163377 A CN201010163377 A CN 201010163377A CN 101831207 B CN101831207 B CN 101831207B
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Abstract
The invention relates to an all-weather nano photocatalyst product for controlling decoration pollution, belonging to the technical field of indoor pollution control. The all-weather nano photocatalyst product is characterized by comprising the following components by weight percent: 0.1-2 percent of titanium dioxide acting as photocatalyst, 0.1-4 percent of nanometer silicate ceramic crystal, 0.1-5 percent of dispersant, 1-5 percent of adhesive, and the balance water. The microporous ceramic crystal without photocatalyst has extremely strong adsorption capacity, can effectively adsorb pollutants in environmental air and decomposes the adsorbed pollutants with the photocatalyst in the condition of light. Therefore, the all-weather nano photocatalyst product can remain high-efficiency decontamination ability in all weathers in bright, dark and bright alternate life environments.
Description
Technical field
The present invention relates to a kind of photocatalyst product, in particular a kind of nano photocatalyst product that is applicable to finishing pollution improvement.
Technical background
" being caused by environmental factors more than 90% of human cancer ".And human 85% time is spent indoor, and pollution of indoor environment more should be noted.Yet unfortunately, indoor pollution has become the global the third-largest source of pollution after topsoil and light pollution.Indoor pollutant exceeds standard and can damage human body, and the lighter causes headache, giddy, weak and respiratory tract disease, and severe one then can cause canceration, and is especially huge to vulnerable colony's injury such as pregnant woman, children, old man.According to the Indoor Environment Detection center introduction of Chinese upholstery association, indoor air pollutants is mainly derived from house decorative material, buildings itself and outdoor pollutent.Wherein the pollution of house decorative material and furniture is the major cause that causes at present room air pollution, and the materials such as paint, glued board, shaving board, foam stuffing, interior wall coating, plastic facing all contain the pollution substances such as formaldehyde, benzene, toluene.
The interior decoration industry is at the early-stage in China, and also there are problems in indoor hardware fitting.Such as, find that for the sampling check of home decoration material the material that toxic gas pollutes has occupied 68% in country.These toxic gases are very large to harm, and what have has a suitable carinogenicity.Especially formaldehyde (formaldehyde is defined as I class carcinogens by the WHO of the World Health Organization) is irritant gas, has strong carcinogenic and tumor promotion.Long Term Contact low dosage formaldehyde causes easily chronic respiratory tract disease, menoxenia, pregnancy syndrome, neonatal chromosome disorder, teenager's memory and intelligence and descends.Among all contactees, children and pregnant woman are subjected to harm maximum.Therefore, how to remove in all directions airborne pollution substance within the as far as possible short time, effectively purifying air becomes the task of top priority.
In recent years, the photocatalyst product of various novelties continues to bring out, can only utilize the ultraviolet portion the limited sunlight slowly to develop into the visible light part that can utilize at present sunlight from the initial period photocatalyst product, even the photocatalyst product that has can also utilize indoor light.But no matter how photocatalyst product develops, have a defective to pay attention to, be exactly the product of single photocatalyst composition all must rely on light, the product of single photocatalyst composition just can not had an effect under unglazed condition.
The note of related art:
VOC: volatile organic matter, its toxicity, pungency, carinogenicity and special smell can affect skin and mucous membrane, and human body is produced acute lesion.
TVOC: total volatile organism is comparatively serious a kind of of impact in three kinds of organic pollutants (polycyclic aromatic hydrocarbons, volatile organic matter and aldehyde compound).
Summary of the invention
In view of this, rely on the limitation of light in order to overcome the single photocatalyst composition product of prior art, the present invention proposes a kind of weather proof type photocatalyst product, make product of the present invention have round-the-clock removal finishing pollution effect by matching special ceramic crystal, this product is particularly useful for administering the finishing pollution environment.
The present invention is achieved by the following technical solutions, by mass percentage, comprises following component: the traditional Nano titanium dioxide of prior art is as photocatalyst 0.1～2%, nano silicone hydrochlorate ceramic crystal 0.1～4%, dispersion agent 0.1～5%, tackiness agent 1～5%, surplus is water.
Further, product of the present invention is that better must being applicable to administered the finishing pollution environment, adds the nanometer silver component in product, makes the product can also antibiotic, the biocidal efficacies of round-the-clock performance.By mass percentage, the nanometer silver component concentration is 0.05-2%.
Described nano ceramics crystal can adsorb organic and inorganic pollutent efficiently, and the micropore of this ceramic crystal has extremely strong adsorptive power, and does not receive unglazed restriction.This ceramic crystal can be selected the product of commercially available ultra tiny silicate ceramics crystal both at home and abroad, reach best effect in order to mix with Nano titanium dioxide and nanometer silver after using, the present invention has chosen the duct that microstate has nano level 0.1-1.0nm by screening, and specific surface area reaches 500～700m
2/ g, powder density is 0.3～0.5g/cm
2, median size is 0.5～3.0 micron ceramic crystal.Simultaneously, because this special ceramics crystal miniaturization, it is very large to add its surface-area, and a part of Nano titanium dioxide and nanometer-level silver can be attached to the surface of special ceramics crystal well, and pollution substance, antibiotic, deodorizing effect are removed in long-time performance.
This nano ceramics crystal is the silicates ceramic crystal, is specially a kind of or any mixing of the silicates such as pure aluminium silicate, Magnesium Silicate q-agent, neusilin, aluminium iron silicate.
Preferably, this its mass percentage content of silicate ceramics crystal is 0.75～4%.
Described dispersion agent, tackiness agent coexist as in the product system of the present invention, wherein: dispersion agent must guarantee that nano titanium oxide, nano ceramics crystal, nanometer silver disperse well in solvent, do not condense, fully keep its nano-meter characteristic, guarantee that its function-stable is lasting; Simultaneously, also to consider dispersion agent to the impact of product viscosity, guarantee that product of the present invention keeps good sticking power, difficult drop-off to base material.Tackiness agent must make titanium dioxide, ceramic crystal, silver nano-grain on the coated article surface for a long time, adhere to better, with the effect of long-time performance photocatalyst; Simultaneously, to consider that also tackiness agent can have the cohesion impact to the product nano particle.In addition, tackiness agent covers photocatalyst fully, and the photocatalyst effect just can't be brought into play, and should be taken into account this point when selection material.
Described dispersion agent is a kind of or arbitrarily several mixing in silicone oil, silane, the siloxanes, and described tackiness agent is chosen as a kind of or arbitrarily several mixing in vinylformic acid, carboxylic acid, silicon oxide, the cellosolve.
The present invention has added without the photocatalyst composition on the single photocatalyst product of tradition basis, makes this product no longer be subjected to the restriction of light source, becomes the weather proof type product.Specifically, at sunlight, the hole that the faint light such as light or even room fluorescent lights can produce electronegative electronics and positively charged according to the photocatalyst composition among lower the present invention, separate with electronics in the hole, and move to particle surface, at this moment, hole and the water of moving to particle surface produce hydroxyl radical free radical through series reaction, hydroxyl radical free radical has superpower oxidation capacity, various organic pollutants are (such as formaldehyde in can well-oxygenated environment, benzene, TVOC) and inorganic pollutant (such as ammonia, oxynitride etc.), generate harmless small molecules inorganics such as carbonic acid gas and water.Light is being arranged or without under the optical condition, the micropore without photocatalyst composition ceramic crystal among the present invention all has extremely strong adsorptive power, but then the pollutent in the efficient adsorption ambient air utilizes photocatalyst to remove the pollutent that is adsorbed there being the light time further to decompose.Therefore, there is being product of the present invention under light, unglazed, the living environment that replaces that light is arranged can round-the-clock maintenance to remove efficiently the ability of pollutent.
Preparation method and the using method of product of the present invention are simple.Then titanium dioxide, ceramic crystal, nanometer silver and a certain amount of aqueous solvent mix and blend add dispersion agent and stir, and obtain preparation liquid.A small amount of water and tackiness agent are mixed mix and blend, it is poured into mix in the preparation liquid again and can obtain product of the present invention.Utilize common atomizer that product gross area of the present invention is sprayed between new clothes are repaired the house, can finish use.Product of the present invention itself is nontoxic, and film forming speed is fast, hardness is high.
The uses such as product of the present invention is applicable in there be the room, pet nest of foreign odor flavor in newly-decorated family, new furniture, the vehicle of newly buying, the family that buys also are applicable to the antimicrobial treatment in public places such as hospital, Internet bar, airport, KTV.
Embodiment
The below elaborates to embodiments of the invention: present embodiment is implemented under take technical solution of the present invention as prerequisite, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.Each embodiment is the embodiment when making 100 kilograms of products.
Embodiment 1
0.1% titanium dioxide, 0.1% magnesium aluminum silicate, 0.05% silver medal and 95.95% water mix and blend, rotating speed 1000-2000 rev/min, stirred 5-10 minute, then add 0.1% silicone oil and stirred 5-10 minute, obtain liquor 1.2.7% water and 1% silicon oxide mix and blend, rotating speed 1000-2000 rev/min, stirred 1-10 minute, pour at last in the liquor 1 to stir and can obtain product in 1-10 minute.
Embodiment 2
2% titanium dioxide, 2% Magnesium Silicate q-agent, 1% silver medal and 75% water mix and blend, rotating speed 1000-2000 rev/min, stirred 5-10 minute, then add 5% silane and stirred 5-10 minute, obtain liquor 2.10% water and 5% carboxylic acid mix and blend, rotating speed 1000-2000 rev/min, stirred 1-10 minute, pour at last in the liquor 2 to stir and can obtain product in 1-10 minute.
Embodiment 3
1.5% titanium dioxide, 0.75% pure aluminium silicate, 0.5% silver medal and 89% water mix and blend, rotating speed 1000-2000 rev/min, stirred 5-10 minute, then add 2% siloxanes and stirred 5-10 minute, obtain liquor 3.4.25% water and 2% vinylformic acid mix and blend, rotating speed 1000-2000 rev/min, stirred 1-10 minute, pour at last in the liquor 3 to stir and can obtain product in 1-10 minute.This product is being respectively 52%, 66%, 70% through national environmental protection product quality supervision and inspection center without the clearance through 72 hours PARA FORMALDEHYDE PRILLS(91,95), benzene, TVOC under the optical condition.
Embodiment 4
1.5% titanium dioxide, 1.5% pure aluminium silicate, 0.5% silver medal and 89% water mix and blend, rotating speed 1000-2000 rev/min, stirred 5-10 minute, then add 2% siloxanes and stirred 5-10 minute, obtain liquor 4.3.5% water and 2% vinylformic acid mix and blend, rotating speed 1000-2000 rev/min, stirred 1-10 minute, pour at last in the liquor 4 to stir and can obtain product in 1-10 minute.It is being 74% without 72 hours clearances to TVOC under the optical condition after testing.
Embodiment 5
1.5% titanium dioxide, 2.5% pure aluminium silicate, 1% silver medal and 88% water mix and blend, rotating speed 1000-2000 rev/min, stirred 5-10 minute, then add 2% siloxanes and stirred 5-10 minute, obtain liquor 5.3% water and 2% vinylformic acid mix and blend, rotating speed 1000-2000 rev/min, stirred 1-10 minute, pour at last in the liquor 5 to stir and can obtain product in 1-10 minute.It is being 77% without 72 hours clearances to TVOC under the optical condition after testing.
Embodiment 6
1.5% titanium dioxide, 4% pure aluminium silicate, 1.5% silver medal and 86.5% water mix and blend, rotating speed 1000-2000 rev/min, stirred 5-10 minute, then add 2% siloxanes and stirred 5-10 minute, obtain liquor 6.2.5% water and 2% vinylformic acid mix and blend, rotating speed 1000-2000 rev/min, stirred 1-10 minute, pour at last in the liquor 6 to stir and can obtain product in 1-10 minute.It is being 81% without 72 hours clearances to TVOC under the optical condition after testing.
Comprehensive embodiment 3-6 learns that it was best without the removal effect to TVOC under the optical condition when content of pure aluminium silicate was 4%.And the product that existing single photocatalyst composition forms is without under the optical condition TVOC being had any removal ability hardly.
Weather proof type photocatalyst product of the present invention (embodiment 3) is through the check (No.GHB2009HB00551 number) at national environmental protection product quality supervision and inspection center, without under the optical condition, each data of the clearance of its PARA FORMALDEHYDE PRILLS(91,95), benzene, TVOC are respectively 38%, 41%, 60% in 24 hours, 48 hours, 72 hours, 44%, 58%, 65%, 52%, 66%, 70%.QB/T2761-2006 indoor air purification product decontamination effect improving measuring method is adopted in this experiment, and concrete steps are as follows:
1) undressed basic paper is hung among the A of blank test cabin.To hang among the experimental cabin B through the basic paper of spraying scavenging material again.
2) the pollutent source of release A1 for preparing and the container of B1 will be housed and be positioned over respectively among blank test cabin A and the specimen test cabin B, close immediately hatch door.
3) open the fan of blank test cabin A and specimen test cabin B, stir 1mim, make the pollutent mixing of air and source of release release in the cabin in after, close simultaneously fan, to carrying out air sampling in the blank cabin, measure that pollutants in air concentration position is starting point concentration in the blank cabin, be denoted as C
0
4) respectively the concentration of air pollutant in two cabins is sampled behind 24h, 48h, the 72h, analytical test is the sometime concentration value in the interior A of section, B cabin, is denoted as C
AWith C
B
Clearance can calculate by formula (1).
Y＝(C
A-C
B)/C
A×100
In the formula:
The Y-clearance, %;
C
A-blank test cabin Pollutant levels value, mg/m
3
C
B-specimen test cabin Pollutant levels value, mg/m
3
To discharge pollutent TVOC as example, TVOC concentration value C in blank test cabin behind the 72h
A=2.824mg/m
3, specimen test cabin pollutent TVOC concentration value C
B=0.847mg/m3, Y=(C
A-C
B)/C
A* 100=70%.
Claims (4)
1. administer the finishing pollution all-weather nano photocatalyst product for one kind, it is characterized in that, by mass percentage, comprise following component: titanium dioxide is as photocatalyst 0.1～2%, nano silicone hydrochlorate ceramic crystal 0.1～4%, dispersion agent 0.1～5%, tackiness agent 1～5%, surplus are water
Described ceramic crystal through characterizing its microscopic feature is: have the 0.1-1.0nm duct, specific surface area is 500～700m
2/ g, powder density is 0.3～0.5g/cm
2, median size is 0.5～3.0 micron.
2. photocatalyst product as claimed in claim 1 is characterized in that, this nano ceramics crystal is the silicates ceramic crystal, is specially a kind of or any mixing in pure aluminium silicate, Magnesium Silicate q-agent, neusilin, the aluminium iron silicate.
3. photocatalyst product as claimed in claim 1 is characterized in that, this its mass percentage content of silicate ceramics crystal is 0.75～4%.
4. photocatalyst product as claimed in claim 1 is characterized in that, described dispersion agent is a kind of or arbitrarily several mixing in silicone oil, silane, the siloxanes, and described tackiness agent is a kind of or arbitrarily several mixing in vinylformic acid, carboxylic acid, the cellosolve.
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| CN 201010163377 CN101831207B (en) | 2010-04-28 | 2010-04-28 | All-weather nano photocatalyst product for controlling decoration pollution |
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| CN 201010163377 CN101831207B (en) | 2010-04-28 | 2010-04-28 | All-weather nano photocatalyst product for controlling decoration pollution |
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| CN101831207B true CN101831207B (en) | 2013-01-02 |
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| CN105944128A (en) * | 2016-05-12 | 2016-09-21 | 广东绿净界新材料股份有限公司 | Nano-photocatalyst air purifying agent with good weather fastness |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1434087A (en) * | 2003-01-27 | 2003-08-06 | 陈新州 | Composite nano water-borne paint and preparation process thereof |
| CN1473891A (en) * | 2002-08-07 | 2004-02-11 | 张贵洲 | Nano composite inner wall antiseptic emulsion paint |
| JP2004346201A (en) * | 2003-05-22 | 2004-12-09 | Toto Ltd | Aqueous coating composition, antibacterial member and method for forming coating film |
| CN101153137A (en) * | 2006-09-25 | 2008-04-02 | 天津市振东涂料有限公司 | Method of producing ultra-bright light catalysis degradation antimicrobial environment protection paint |
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- 2010-04-28 CN CN 201010163377 patent/CN101831207B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1473891A (en) * | 2002-08-07 | 2004-02-11 | 张贵洲 | Nano composite inner wall antiseptic emulsion paint |
| CN1434087A (en) * | 2003-01-27 | 2003-08-06 | 陈新州 | Composite nano water-borne paint and preparation process thereof |
| JP2004346201A (en) * | 2003-05-22 | 2004-12-09 | Toto Ltd | Aqueous coating composition, antibacterial member and method for forming coating film |
| CN101153137A (en) * | 2006-09-25 | 2008-04-02 | 天津市振东涂料有限公司 | Method of producing ultra-bright light catalysis degradation antimicrobial environment protection paint |
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