CN101073673A - Coated composition for purifying air, its production and use - Google Patents
Coated composition for purifying air, its production and use Download PDFInfo
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- CN101073673A CN101073673A CN 200610080739 CN200610080739A CN101073673A CN 101073673 A CN101073673 A CN 101073673A CN 200610080739 CN200610080739 CN 200610080739 CN 200610080739 A CN200610080739 A CN 200610080739A CN 101073673 A CN101073673 A CN 101073673A
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Abstract
The invention is concerned with the prapretion method and the usage of the air purification painting combination. The compination uses H4TiO5 as the film former, which consists of TiO with 20.25-10% , H4TiO5 with 0.13-4% and water. The content ratio between TiO2 and H4TiO5 is 0.3-6 (TiO2/H4TiO5). The prapretion method includes: firstly, hydrolyzes the titanium salt compound to prepare titan acid titanic acid, then, responses it to hydrogen peroxide and mixing after heating up. The compound forms a kind of spread film after spread on the surface of the within doors wall and ornamenting cliffs after natural seasoning that with strong adhesive force and long lasting air-refinement feature, it improves the quality of the room air and enviroment as the spread film discomposes all kinds of organic pollutant (VOC) and part of abio-harmful gas in the room air.
Description
Technical field:
The present invention relates to a kind of coated composition for purifying air, particularly relate to the colloid solution preparation that a kind of light is partly led application composition.The invention still further relates to the preparation method and the application of described colloid solution
Background technology:
In recent years, various antibiotic property life goods have become the focus of consuming on the market.The antimicrobial treatment of product surface adopts noble metal anti-biotic materials such as organic bactericide and silver more.Organic bactericide is not only to human body safety inadequately, and antibacterial is dissolved easily and runs off and lose effect when washing, is not suitable for the goods that need such as pottery, glass, metal form through high-temperature firing.The noble metal anti-biotic material then has been subjected to considerable restraint because of lattice are expensive on using.
With TiO
2For the photosemiconductor material of representative is causing extensive concern at the applied research aspect the environment such as antibiotic, self-cleaning.This photosemiconductor material is under the effect of the ultraviolet light about natural light or 360nm, and its surface can inspire free electron and form the hole of a positively charged simultaneously, and then causes a series of redox reaction, produces hydroxyl and reactive oxygen free radical.These free radicals have very strong redox ability.It can decompose the various organic compound that are adsorbed in its surface, killing bacteria, and significant antibacterial action is played in microorganisms such as virus.
But attached to various material surfaces, strong, the robust problem of its activity is not resolved for a long time photosemiconductor.The method of prior art has sol-gal process, and chemistry is steaming method etc., manufacturing cost costliness not only, and a little less than the activity, on producing and using, be difficult to penetration and promotion.And to have the whole bag of tricks now with TiO
2The coating fluid of photosemiconductor Dispersion of Particles in water all is difficult to form strong and have highly active coating.
Summary of the invention:
It is strong that the present invention aims to provide a kind of film forming ability, and active high, cheap, the air cleaning that the scope of application is extensive is used up and partly led coating composition.
Coated composition for purifying air of the present invention is water miscible colloid solution, contains the titanium dioxide (TiO of particle diameter less than 50nm
2) photosemiconductor granule and high metatitanic acid (H
4TiO
5).TiO
2Content is 0.25-10%, H
4TiO
5Content is 0.13-4%, TiO
2/ H
4TiO
5Content is than being 0.3-6.
Among the present invention, TiO
2Preferred content be 1-4%, H
4TiO
5Preferred content be 0.5-2%, TiO
2/ H
4TiO
5The content ratio is preferably 1-4; Its optimum content is TiO
22%, H
4TiO
51%, TiO
2/ H
4TiO
5The content ratio is 2.
This TiO
2The photosemiconductor granule has the antibiosis and self-cleaning activity, and high metatitanic acid can improve the dispersibility of colloid solution and can improve the intensity and the adhesive force of filming.TiO
2Content is lower than 0.25% does not almost have activity, and greater than 10% difficulty in preparation, film transparency and adhesive force are very poor.H
4TiO
5Content is bad less than 0.13% o'clock easy dispersibility of colloid solution, can form the fruit jelly shape because of viscosity is too high greater than 4% o'clock colloid solution, loses use value.TiO
2/ H
4TiO
5The content ratio was less than 0.3 o'clock, and colloid solution can be crossed the low practical value of not having because of activity.TiO
2/ H
4TiO
5The content ratio was greater than 6 o'clock, and colloid solution precipitates in preparation and storage process easily, and film adhesive is very poor.
The preparation method of colloid solution of the present invention is:
1. the titanium salt chemical compound is prepared metatitanic acid through hydrolysis;
2. metatitanic acid and the aqueous solution that contains hydrogen peroxide are reacted, make the aqueous solution that contains metatitanic acid and high metatitanic acid;
3. heated and stirred is handled above-mentioned aqueous solution, promotes the TiO2 photosemiconductor particulate formation of particle diameter less than 50nm;
Described titanium salt chemical compound can be from titanium sulfate, selects in the titanium tetrachloride, Titanium Nitrate and organic titanic compound etc.Described high metatitanic acid is the product (derivant that comprises high metatitanic acid) behind metatitanic acid and the hydroperoxidation.
Antibiotic property coating composition of the present invention is coated pottery, metal, glass, plastics and fiber and other material surface can form transparent, strong pottery and film after the drying.This filming, thickness can be brought into play significant sterilizing function usually between 0.1-0.5 μ m.Under faint natural light and artificial light effect, can produce automatic sterilizing and disinfectant effect to various antibacterials and virus intensive inhibition breeding of generation and killing actions such as escherichia coli, staphylococcus aureus, bacillus pyocyaneus.
Below in conjunction with embodiment the present invention is done further detailed elaboration (but being not limited to these embodiment).
The specific embodiment:
Embodiment 1
10% titanium sulfate aqueous solution 900ml adds 10%NaOH aqueous solution 500ml, and the reaction 30 minutes that is hydrolyzed under constantly stirring filters out the titanium hydroxide powder that reaction generates.Then with the aqueous hydrogen peroxide solution of 35g 30% with distilled water diluting to 500ml, drop into behind this titanium hydroxide powder again adding distil water and adjust to 1000ml, heated and stirred to solution transparent till.Acquisition contains 2%TiO
2, 1%H
4TiO
5, TiO
2/ H
4TiO
5Content is than the transparent colloidal solution that is 2.
The making of antibacterial product and effect assessment thereof
1. manufacture method
The colloid solution of embodiment 1 preparation is pressed 10mg/m
2Amount evenly coat glass, ceramic disk, glazing ceramic tile (entire body brick) surface respectively, dry back heat treated 30 minutes under 500 ℃ condition obtains to have three kinds of goods samples of antibacterial film coating.
2. coating strength is measured
1) with the powerful repeatedly friction of rubber 100 times, three kinds of goods samples all do not find to have filmed any obscission.
2) the determination of pencil hardness method of filming with coating is tested.The coating strength of three kinds of goods specimen surfaces of proof all reaches more than the 9H.
3. antibacterial tests one
1) three kinds of specimen surfaces evenly are coated with escherichia coli and Salmonella mixed liquor respectively.Also be coated with antibacterial at the specimen surface of handling without filming simultaneously and compare group.
2) test group and matched group all are placed under the 100W bulb and shone 2 hours.
3) at two groups of specimen surfaces with the sampling of disinfecting silk or cotton swabs, cultivate in 37 ℃ after being applied to plate.
4) observe contrast bacterial growth situation.
The result: three kinds of specimen surfaces of test group, 30% antibacterial of all having an appointment is killed, and matched group covers with by antibacterial.
4. antibacterial tests two
Sample is basic identical with antibacterial tests one with test method, and only the 3rd of test the step was that two test group samples are placed irradiation 3 hours (placing angle is 45 degree, and the time is 9:00-12:00am) under the sunlight.
Result: the not long bacterium colony in entire body brick surface, bactericidal effect 100%; Glass surface is a bacterium colony only, bactericidal effect 99%; The not long bacterium colony in ceramic disk surface, bactericidal effect 100%.
(antibacterial tests one, two) test unit: animal medicine microbial room of China Agricultural University
5. antibacterial tests three
Cultured e. coli jm109 is coated in respectively on the ceramic material and contrast ceramic material of the antibacterial film coating processing of crossing, under fine illumination and cloudy illumination, placed 1-4 hour with aseptic water washing.Wash ceramic material with normal saline, get cleaning mixture 0.1ml and be coated with on the LB flat board, be placed on overnight incubation in 37 ℃ of calorstats, do the bacterium counting.The escherichia coli count results sees Table 1.
Table 1 antibiotic property qualification result
| Minute | Antibacterial film coating is handled ceramic material | The contrast ceramic material | ||
| Fine | Cloudy day | Fine | Cloudy day | |
| 0 hour | 0 | 0 | 0 | 0 |
| 1 hour | Undetermined | 0 | Undetermined | 200 |
| 2 hours | 16 | Undetermined | 210 | Undetermined |
| 3 hours | 0 | 2 | 37 | 110 |
| 4 hours | Undetermined | 2 | Undetermined | 150 |
The ceramic material that antibacterial film coating is handled no matter fine illumination or cloudy diffusion light according under, the bacterium counting is seldom or aseptic; The contrast ceramic material does not have effect to escherichia coli.
Conclusion: the self-cleaning antibacterial coating of being tested has significant killing action with compositions to escherichia coli.
Test unit: Institute of Microorganism, Academia Sinica.
6. chmice acute per os toxicity test
1) test specimen: after the ceramic tile that colloid solution was handled is pulverized, suspend the testing liquid of making 255mg/ml with soybean salad oil.
2) experimental animal: three grades of Kunming mouses.
3) test method
Administration group and matched group male and female are respectively with 10 mices, fasting is 16 hours before the administration, and administration group male and female mice is pressed the 10200mg/kg administration after the mensuration body weight, with oral administration of irrigation stomach device, administration volume 40ml/kg body weight, matched group gives the solvent soybean salad oil with volume.
Observe once every day after the administration, and viewing duration is 7 days, measured body weight on the 1st, 3,5,7 day, carries out the t check, through the check there was no significant difference.Cut open inspection after the off-test.
4) result
Animal no abnormality seen reaction after the administration, body weight is in rising trend.Mice is 10200mg/kg to the maximum tolerated dose of the ceramic tile gastric infusion that colloid solution was handled.
Test unit: Nat'l Pharmaceutical ﹠ Biological Products Control Institute
Embodiment 2
10% titanium tetrachloride aqueous solution 720ml adds 10%NaOH aqueous solution 500ml, and the reaction 30 minutes that is hydrolyzed under constantly stirring filters out the titanium hydroxide powder that reaction generates.Then with the aqueous hydrogen peroxide solution of 35g 30% with distilled water diluting to 500ml, drop into behind this titanium hydroxide powder again adding distil water and adjust to 1000ml, heated and stirred to solution transparent till.Acquisition contains 2%TiO
2, 1%H
4TiO
5, TiO
2/ H
4TiO
5Content is than the transparent colloidal solution that is 2.
Embodiment 3
95g organic titanium salt chemical compound Ti (OC3H7) 4 joins among the 10%NaOH aqueous solution 500ml, and the reaction 30 minutes that is hydrolyzed under constantly stirring filters out the titanium hydroxide powder that reaction generates.The aqueous hydrogen peroxide solution of 35g 30%, drops into behind this titanium hydroxide powder adding distil water again and adjusts to 1000ml to 500ml with distilled water diluting then, heated and stirred to solution transparent till.Acquisition contains 2%TiO2,1%H4TiO5, TiO2/H4TiO5 content than the transparent colloidal solution that is 2.
Embodiment 4
10% titanium sulfate aqueous solution 1800ml adds 10%NaOH aqueous solution 1000ml, and the reaction 30 minutes that is hydrolyzed under constantly stirring filters out the titanium hydroxide powder that reaction generates.Then with the aqueous hydrogen peroxide solution of 70g 30% with distilled water diluting to 500ml, drop into behind this titanium hydroxide powder again adding distil water and adjust to 1000ml, heated and stirred to solution transparent till.Acquisition contains 4%TiO
2, 2%H
4TiO
5, TiO
2/ H
4TiO
5Content is than the transparent colloidal solution that is 2.
Embodiment 5
10% titanium sulfate aqueous solution 450ml adds 10%NaOH aqueous solution 250ml, and the reaction 30 minutes that is hydrolyzed under constantly stirring filters out the titanium hydroxide powder that reaction generates.Then with the aqueous hydrogen peroxide solution of 17.5g 30% with distilled water diluting to 500ml, drop into behind this titanium hydroxide powder again adding distil water and adjust to 1000ml, heated and stirred to solution transparent till.Acquisition contains 1%TiO
2, 0.5%H
4TiO
5, TiO
2/ H
4TiO
5Content is than the transparent colloidal solution that is 2.
Embodiment 6
10% titanium sulfate aqueous solution 225ml adds 10%NaOH aqueous solution 125ml, and the reaction 30 minutes that is hydrolyzed under constantly stirring filters out the titanium hydroxide powder that reaction generates.Then with the aqueous hydrogen peroxide solution of 8.8g 30% with distilled water diluting to 500ml, drop into behind this titanium hydroxide powder again adding distil water and adjust to 1000ml, heated and stirred to solution transparent till.Acquisition contains 0.5%TiO
2, 0.25%H
4TiO
5, TiO
2/ H
4TiO
5Content is than the transparent colloidal solution that is 2.
Embodiment 7
10% titanium sulfate aqueous solution 2700ml adds 10%NaOH aqueous solution 1500ml, and the reaction 30 minutes that is hydrolyzed under constantly stirring filters out the titanium hydroxide powder that reaction generates.Then with the aqueous hydrogen peroxide solution of 105g 30% with distilled water diluting to 500ml, drop into behind this titanium hydroxide powder again adding distil water and adjust to 1000ml, through abundant heated and stirred.Acquisition contains 6%TiO
2, 3%H
4TiO
5, TiO
2/ H
4TiO
5Content is than the translucent solution that is 2.
Embodiment 8
10% titanium sulfate aqueous solution 1101ml adds 10%NaOH aqueous solution 665ml, and the reaction 30 minutes that is hydrolyzed under constantly stirring filters out the titanium hydroxide powder that reaction generates.Then with the aqueous hydrogen peroxide solution of 70g 30% with distilled water diluting to 500ml, drop into behind this titanium hydroxide powder again adding distil water and adjust to 1000ml, heated and stirred to solution transparent till.Acquisition contains 2%TiO
2, 2%H
4TiO
5, TiO
2/ H
4TiO
5Content is than the transparent colloidal solution that is 1.
Embodiment 9
10% titanium sulfate aqueous solution 800ml adds 10%NaOH aqueous solution 445ml, and the reaction 30 minutes that is hydrolyzed under constantly stirring filters out the titanium hydroxide powder that reaction generates.Then with the aqueous hydrogen peroxide solution of 17.5g 30% with distilled water diluting to 500ml, drop into behind this titanium hydroxide powder again adding distil water and adjust to 1000ml, heated and stirred to solution transparent till.Acquisition contains 2%TiO
2, 0.5%H
4TiO
5, TiO
2/ H
4TiO
5Content is than the transparent colloidal solution that is 4.
Embodiment 10
10% titanium sulfate aqueous solution 750ml adds 10%NaOH aqueous solution 417ml, and the reaction 30 minutes that is hydrolyzed under constantly stirring filters out the titanium hydroxide powder that reaction generates.Then with the aqueous hydrogen peroxide solution of 70g 30% with distilled water diluting to 500ml, drop into behind this titanium hydroxide powder again adding distil water and adjust to 1000ml, heated and stirred to solution transparent till.Acquisition contains 1%TiO
2, 2%H
4TiO
5, TiO
2/ H
4TiO
5Content is than the transparent colloidal solution that is 0.5.
Embodiment 11
10% titanium sulfate aqueous solution 3670ml adds 10%NaOH aqueous solution 2038ml, and the reaction 30 minutes that is hydrolyzed under constantly stirring filters out the titanium hydroxide powder that reaction generates.Then with the aqueous hydrogen peroxide solution of 87.5g 30% with distilled water diluting to 500ml, drop into behind this titanium hydroxide powder again adding distil water and adjust to 1000ml, through abundant heated and stirred.Acquisition contains 10%TiO
2, 2.5%H
4TiO
5, TiO
2/ H
4TiO
5Content is than the opaque colloid solution that is 4.
Embodiment 12
Doubly after the dilution, stirred 30 minutes with distilled water etc. implementing 4 colloid solution.Acquisition contains 0.25%TiO
2, 0.13%H
4TiO
5, TiO
2/ H4TiO5 content is than the transparent colloidal solution that is 2.
Embodiment 13
10% titanium sulfate aqueous solution 2200ml adds 10%NaOH aqueous solution 400ml, and the reaction 30 minutes that is hydrolyzed under constantly stirring filters out the titanium hydroxide powder that reaction generates.Then with the aqueous hydrogen peroxide solution of 140g 30% with distilled water diluting to 500ml, drop into behind this titanium hydroxide powder again adding distil water and adjust to 1000ml, after the heated and stirred.Acquisition contains 4%TiO2,4%H4TiO5, TiO2/H4TiO5 content than the fruit jelly shape dope that is 1.
Claims (6)
1. coated composition for purifying air, described compositions is the water solublity colloid, its solvent is high metatitanic acid, TiO
2And water.
2. the described coated composition for purifying air of claim 1 is characterized in that TiO
2Content is 0.25-10%, H
4TiO
5Content is 0.13-5%, TiO
2/ H
4TiO
5Content is than being 0.3-6.TiO
2Preferred content be 1-4%, H
4TiO
5Preferred content be 0.5-2%, TiO
2/ H
4TiO
5Preferred content than for 1-4; TiO in the said composition
2Optimum content be TiO
22%, H
4TiO
51%, TiO
2/ H
4TiO
5The optimum content ratio be 3.
3. the described coated composition for purifying air of claim 1 wherein participates in the coated composition for purifying air of metal, noble metal or other quasiconductor compositions such as one or more Pt, Ag, Cu, Fe.
4. the described coated composition for purifying air of claim 1, participate in strong oxidizers such as hydrogen peroxide coated composition for purifying air.
5. the preparation method of the described coated composition for purifying air of claim 1, the basic feature and the step of its preparation process are as follows:
(1) be that feedstock production becomes high metatitanic acid aqueous solution with the titanium salt chemical compound.Wherein, the titanium salt chemical compound can be selected in titanium sulfate, titanium tetrachloride, Titanium Nitrate, organic titanium salt etc., but is not limited to these chemical compounds.
(2) be base stock with above-mentioned high metatitanic acid solution, utilize equipment such as reactor under certain environmental conditions, to carry out polyreaction, finally be prepared into the coated composition for purifying air of the described feature of claim 1.Be preferably in polyreaction and begin the guiding substance that preceding adding can promote the formation of anatase titanium dioxide TiO2 crystal grain on a small quantity.
(3) before the described polyreaction of process (2) begins and in the suitable period after finishing, an amount of one or more the relevant compositions such as quasiconductor beyond metal ion, the TiO2, strong oxidizer that add, prepare at last and modulate have claim 3, the air cleaning coating material of 4 described features.
6. the application of the described coated composition for purifying air of claim 1 is characterized in that being coated in surfaces such as indoor wall, ornament materials, furniture, carpet, floor, curtain, can lasting constant air purification effect thereby obtain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610080739 CN101073673A (en) | 2006-05-15 | 2006-05-15 | Coated composition for purifying air, its production and use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610080739 CN101073673A (en) | 2006-05-15 | 2006-05-15 | Coated composition for purifying air, its production and use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101073673A true CN101073673A (en) | 2007-11-21 |
Family
ID=38975049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610080739 Pending CN101073673A (en) | 2006-05-15 | 2006-05-15 | Coated composition for purifying air, its production and use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101073673A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107473770A (en) * | 2017-06-27 | 2017-12-15 | 伦慧东 | The manufacture craft of photocatalyst film composite ceramics |
| CN114258921A (en) * | 2022-03-03 | 2022-04-01 | 北京为康环保科技有限公司 | Composite disinfection and purification liquid and preparation method and application thereof |
-
2006
- 2006-05-15 CN CN 200610080739 patent/CN101073673A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107473770A (en) * | 2017-06-27 | 2017-12-15 | 伦慧东 | The manufacture craft of photocatalyst film composite ceramics |
| CN114258921A (en) * | 2022-03-03 | 2022-04-01 | 北京为康环保科技有限公司 | Composite disinfection and purification liquid and preparation method and application thereof |
| CN114258921B (en) * | 2022-03-03 | 2022-07-12 | 北京为康环保科技有限公司 | Composite disinfection and purification liquid and preparation method and application thereof |
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Effective date of registration: 20081031 Address after: A, building 12, block 1, building No. 2, South Main Street, Haidian District, Beijing, Zhongguancun Applicant after: Beijing Bi Hua Technology Co., Ltd. Address before: No. 905 South Main Street, No. 12, building 6, high, Beijing, Haidian District, Zhongguancun Applicant before: Cui Haixin |
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Application publication date: 20071121 |