CN109810597A - A kind of resistant to pollution nano titania photo-catalytic coating of vcehicular tunnel and its application - Google Patents
A kind of resistant to pollution nano titania photo-catalytic coating of vcehicular tunnel and its application Download PDFInfo
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Abstract
The invention belongs to photocatalyst material fields, and in particular to a kind of resistant to pollution nano titania photo-catalytic coating of vcehicular tunnel and its application.The nano titania photo-catalytic coating includes following components by weight note: titanium dioxide nano sol 2-10%, silica solution 5-20%, binder for film formation 5-20%, wetting agent 0.1-1%, defoaming agent 0.1-1%, coalescent 0-4%, mineral-filled 0.1-20%, pigment 0.1-2%, biocide 0.1-0.5%, the coating also include thickener, preservative, water and conformation additive.Coating storage time of the invention is long, and property is stablized, and outer indoors can be used, and all has excellent photocatalysis performance and mechanical performance in short-term and long-term, is particularly suitable as vcehicular tunnel, it is made to generate lasting automatic cleaning action.
Description
Technical field
The invention belongs to photocatalyst material fields, and in particular to a kind of resistant to pollution nano titania light touching of vcehicular tunnel
Matchmaker's coating and its application.
Background technique
If chlorophyll can convert oxygen as other organic matters for CO2 by photosynthesis, special titanium dioxide
Surrounding oxygen and hydrone can be converted into great work after absorbing the ultraviolet light in the sun and fluorescent lamp by titanium (TiO2)
Property active oxygen layer, this active oxygen the organic substance (formaldehyde, acetaldehyde, ammonia, bacterium etc.) of surrounding can be decomposed into again water and
CO2.This effect is known as photocatalyst effect.The photocatalyst effect of titanium dioxide is clear by the professor rattan island of Tokyo Univ Japan
In the discovery seventies.
Currently, photo-catalytic coating is well-known with its self-cleaning property.It can degrade atmosphere pollution such as organic solvent and nitrogen
Oxide, and bacterium is destroyed under the action of ultraviolet light, harmful microorganism, algae and various fungies etc..Added nanometer two
The nanometer anti-bacteria environmental-protection coating that titanium dioxide photocatalyst is fabricated to can efficiently solve air pollution caused by interior decoration and ask
Topic, and there is long-term mildew and algae effect.Meanwhile nano photo-catalytic antibacterial environmental protection coating material has excellent self-cleaning anti-pollution function
Can, long-term clean aesthetic can be kept；With brilliant high-weatherability, Bao Guangbao color effect is good；Excellent is water-fast, acidproof, alkaline-resisting
Property, digital preservation are not easy to peel off；Adhesive force is good, shows powerful abrasion resistance；Hardness of paint film height and flexible, hydrophobicity pole
It is good, dirt easy to clean.In environmental protection, many existing catalytic solutions all select the dioxy containing organic or inorganic adhesive
Change titanium photocatalyst.
The patent of invention that number is FR2776944 proposes a solution: using silicon dioxide gel as titanium dioxide
Adhesive particle.And when being air-dried, the short term mechanical performance of the coating of the type is poor, can lead to varnish after coating
Fragmentation.In addition, since polymer can be decomposed by light-catalyzed reaction, so it is not recommended that individually in outdoor application organic bond.
Currently, the various pollutions long-term because of vcehicular tunnel, the cleaning for vcehicular tunnel the inner surface and the outer surface is all ratio
It is more difficult, the burden of operating personnel is also increased, and be unfavorable for the personal safety of operating personnel.
Therefore, to overcome drawbacks described above, the technical problem to be solved by the present invention is to produce one kind outer indoors can make
Transparent photocatalyst paint, is particularly suitable as the antipollution self-cleaning coating of vcehicular tunnel, and in short-term and long-term all
With excellent photocatalysis performance and mechanical performance.
Summary of the invention
In view of this, specially a kind of vcehicular tunnel is anti-one of the objects of the present invention is to provide a kind of photo-catalytic coating
The nano titania photo-catalytic coating of pollution, the coating is short-term and long-term interior all with excellent photocatalysis performance and machinery
Performance.
To achieve the above object, the present invention uses following scheme:
A kind of nano titania photo-catalytic coating includes following components: titanium dioxide nano sol 2- by weight note
10%, silica solution 5-20%, binder for film formation 5-20%, wetting agent 0.1-1%, defoaming agent 0.1-1%, coalescent 0-4%, mine
Object fill 0.1-20%, pigment 0.1-2%, biocide 0.1-0.5%, the coating also include thickener, preservative, water and
Conformation additive.
The TiO 2 sol refers to that the aqueous colloidal dispersion of titanium dioxide, the silica solution are with automatic fixation performance
Silicon dioxide gel, the binder for film formation in dispersion or emulsion state.
Further, the silica solution is the silica solution of automatic coloring property, and the partial size of the silica solution is 8-40nm, preferably
For 15-30nm.
Further, the binder for film formation be selected from acrylic copolymer, styrene-propene acids or ethylenic copolymer with
And any one in the group of polysiloxanes formation.
Due to having used film-forming polymer binder, its mechanical performance can display at once after coating is dry.
Further, the coating also includes transparent mineral filler, and the transparent mineral filler is feldspar, spherical transparent
Glass, one of ground glass or a variety of.
Pigment used in formulation for coating material of the present invention mainly uses Millenium S 5-300 (supplier
Millenium), which has excellent transparency property, and main function is that the coating is made to have good transparency, is conducive to
Photocatalyst, which applies, plays its photocatalysis performance.Mineral filler can reduce the cost of composition and be conducive to it and is dried.
Further, the titanium dioxide belongs to Detitanium-ore-type.
Preferably, the wetting agent is Envirogem 360.
Preferably, the defoaming agent is any one in Clerol NXZ, Clerol NDW and Clerol PLB 847.
Preferably, the thickener is Rh é olate 678.
The second object of the present invention is to provide a kind of application of coating, the specially described nano titania light touching
Application of matchmaker's coating in vcehicular tunnel inner wall antipollution.
To achieve the above object, the present invention uses following scheme:
The nano titania photo-catalytic coating is also applied in addition to the application in vcehicular tunnel inner wall antipollution
In the antipollution of external surface of buildings.
The coating can routinely means be made, and store even several years some months without any in closed container
The problem of precipitating, separation or bacterial degradation.Technical staff can conventional means composition is coated onto vcehicular tunnel inner wall or building
On surfaces externally and internally, for example, building interior or the wall of outside, ceiling, the road surface of indoor and outdoors, paving stone, pond curb,
Tile and the Architectural Elements inside or outside other.It can be used for example using brush, roller, by being sprayed for pneumatic spray gun, or
Pressure type in personOrType air gun is coated.
The coating of 20-100ml can be coated on the surface of every square metre of material to be coated, preferably 40-80ml is to be dried
The surface of material to be coated will form thin film of the thickness at 10-50 μm afterwards, this described layer film, have good mechanical performance and
Photocatalysis performance.
The film is when being subjected to A type ultraviolet radioactive, under the action of solar radiation or artificial radiation, can promote organic material
Material, the decomposition of organic solvent and nitrogen oxides as contained in atmosphere.The source of artificial radiation can be UVA type lamp, such as black light
The halogen-type headlamp or fluorescent tube of lamp or black light blue lamp or standard.Photocatalysis can prevent or postpone building element
The formation of moss and fungi algae on surface, to avoid body surface, forming material is blocked too quickly.Photocatalysis may be used also
With various greasy filths of degrading under the action of ultraviolet radioactive, such as mineral or vegetable oil spot, wine, wax and other organic dyestuff
The spot of generation.
The beneficial effects of the present invention are:
1) a kind of resistant to pollution nano titania photo-catalytic coating of vcehicular tunnel of the invention outer indoors can make
Transparent photocatalyzing coating, short-term and long-term interior all with excellent photocatalysis performance and mechanical performance, especially suitable use
Make vcehicular tunnel, it is made to generate lasting automatic cleaning action；
2) coating storage time of the invention is long, and property is stablized, and will not generate any precipitating, and separation or bacterial degradation are asked
Topic, and the not high use easy to spread of cost.
Specific embodiment
Illustrated embodiment is in order to which preferably the present invention will be described, but is not that the contents of the present invention are limited only to institute
For embodiment.So those skilled in the art according to foregoing invention content to embodiment carry out it is nonessential improvement and
Adjustment, still falls within protection scope of the present invention.
Embodiment 1
A kind of nano titania photo-catalytic coating
A kind of nano titania photo-catalytic coating includes following components: titanium dioxide nano sol by weight note
2%, silica solution 5%, binder for film formation 5%, wetting agent 0.1%, defoaming agent 0.1%, coalescent 0.5%, mineral-filled
0.1%, pigment 0.1%, biocide 0.1%, the coating also include thickener, preservative, water and conformation additive.
The wetting agent is Envirogem 360 (supplier Air products), and the defoaming agent is Clerol PLB
847 (supplier Cognis), the pigment are Millenium S 5-300 (supplier Millenium), the binder for film formation
For Acronal S 790 (supplier Acronal S 790), the silica solution is 402 (supplier of Betol KS
Woellner), the coalescent is Dowanol DPNP (supplier Dow Chemicals), and the thickener is Rh é olate
678 (supply Elementis), the biocide is Acticide MBS (supplier Thor).
Embodiment 2
A kind of nano titania photo-catalytic coating
A kind of nano titania photo-catalytic coating includes following components: titanium dioxide nano sol by weight note
5%, silica solution 10%, binder for film formation 12%, wetting agent 0.5%, defoaming agent 0.5%, coalescent 2%, it is mineral-filled 10%,
Pigment 1%, biocide 0.3%, the coating also include thickener, preservative, water and conformation additive.
The wetting agent is Envirogem 360 (supplier Air products), and the defoaming agent is Clerol NXZ
(supplier Cognis), the pigment are Millenium S 5-300 (supplier Millenium), and the binder for film formation is
Acronal S 790 (supplier BASF), the silica solution are Betol KS 402 (supplier Woellner) and Baysilone
é mulsion WA (supplier Momentive), the coalescent are Dowanol DPNP (supplier Dow Chemicals), institute
Stating thickener is Rh é olate 678 (supply Elementis), and the biocide is Acticide MBS (supplier Thor).
Embodiment 3
A kind of nano titania photo-catalytic coating
A kind of nano titania photo-catalytic coating includes following components: titanium dioxide nano sol by weight note
10%, silica solution 20%, binder for film formation 20%, wetting agent 1%, defoaming agent 1%, it is mineral-filled 20%, pigment 2%, kill livestock
Agent 0.5%, the coating also include thickener, preservative, water and conformation additive.
The wetting agent is Envirogem 360 (supplier Air products), and the defoaming agent is Clerol NDW
(supplier Cognis), the pigment are Millenium S 5-300 (supplier Millenium), and the binder for film formation is
Acronal S559 (supplier BASF), the silica solution are Betol KS 402 (supplier Woellner) and Silres BS
45 (supplier Wacker), the thickener are Rh é olate 678 (supply Elementis), and the biocide is
Acticide MBS (supplier Thor).
Embodiment 4
A kind of nano titania photo-catalytic coating
A kind of nano titania photo-catalytic coating includes following components: titanium dioxide nano sol by weight note
7%, silica solution 12%, binder for film formation 12%, wetting agent 0.6%, defoaming agent 0.7%, coalescent 4%, it is mineral-filled 12%,
Pigment 1.3%, biocide 0.4%, the coating also include thickener, preservative, water and conformation additive.
The wetting agent is Envirogem 360 (supplier Air products), and the defoaming agent is Clerol NXZ
(supplier Cognis), the pigment are Millenium S 5-300 (supplier Millenium), and the binder for film formation is
Vinnapas CEF 52W (supplier Wacker), the silica solution be Betol KS 402 (supplier Woellner) and
Silres BS 1306 (supplier Wacker), the coalescent are Dowanol DPNP (supplier Dow Chemicals), institute
Stating thickener is Rh é olate 678 (supply Elementis), and the biocide is Acticide MBS (supplier Thor).
Embodiment 5
1. the performance study of nano titania photo-catalytic coating improvement air quality
Nano titania photo-catalytic coating described in embodiment 1-4 is sprayed on the paper of (40cm × 40cm), is sprayed
Consistency of thickness is applied, is tested according to " function of purifying indoor air coating material purifying property " (JC/T1074-2008),
A certain amount of formaldehyde is injected in the closed glass case of 1m3 and is put into sample paper, after record is put into sample for 24 hours respectively, sample chamber
Concentration (mg/m3) rate of descent of interior formaldehyde and after being put into 6 months anion concentration (a/cm3).The results are shown in Table 1, explanation
The nano titania photo-catalytic coating of embodiment 1-4 can be effectively improved the quality of air, decompose the pollutant in air.
The performance study of 1. nano titania photo-catalytic coating of table improvement air quality
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| The concentration rate of descent of formaldehyde, % | 86 | 80 | 79 | 89 |
| The concentration (a/cm3) of anion | 4.5*103 | 4.7*103 | 4.0*103 | 4.2*103 |
2. the resistant to pollution performance study of nano titania photo-catalytic coating
Nano titania photo-catalytic coating described in embodiment 1-4 is sprayed at tunnel sample sheet material, slate material, wood
Material, ground surface material surface, every square meter sprays coating described in 50ml, and above-mentioned material is placed in equal ambient, observes after 6 months
The pollution condition of material surface, and given a mark according to antipollution situation, score is higher, and antifouling property is better.As a result such as 2 institute of table
Show, nano titania photo-catalytic coating described in embodiment 1-4 has preferable antifouling property, wherein with tunnel template material
Material and slate material are best.
The 2. resistant to pollution performance study of nano titania photo-catalytic coating of table
| Material | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Tunnel template | 85 | 90 | 89 | 89 |
| Slate material | 82 | 87 | 85 | 81 |
| Timber | 64 | 69 | 65 | 64 |
| Ground surface material surface | 70 | 69 | 61 | 63 |
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (10)
1. a kind of nano titania photo-catalytic coating, which is characterized in that the coating includes following components by weight note: two
TiOx nano colloidal sol 2-10%, silica solution 5-20%, binder for film formation 5-20%, wetting agent 0.1-1%, defoaming agent 0.1-
1%, coalescent 0-4%, mineral-filled 0.1-20%, pigment 0.1-2%, biocide 0.1-0.5%, the coating also include
Thickener, preservative, water and conformation additive.
2. coating according to claim 1, which is characterized in that the silica solution is the silica solution of automatic coloring property, institute
The partial size for stating silica solution is 8-40nm.
3. coating according to claim 1, which is characterized in that the binder for film formation is selected from acrylic copolymer, propylene
Any one in the group that acids or ethylenic copolymer and polysiloxanes are formed.
4. coating according to claim 1, which is characterized in that the coating also includes transparent mineral filler, described
Bright mineral filler is feldspar, spherical transparent glass, one of ground glass or a variety of.
5. coating according to claim 1, which is characterized in that the titanium dioxide belongs to Detitanium-ore-type.
6. coating according to claim 1, which is characterized in that the wetting agent is Envirogem 360.
7. coating according to claim 1, which is characterized in that the defoaming agent be Clerol NXZ, Clerol NDW and
Any one in Clerol PLB 847.
8. coating according to claim 1, which is characterized in that the thickener is Rh é olate 678.
9. application of the coating described in claim 1-8 in vcehicular tunnel inner wall antipollution.
10. application according to claim 9, which is characterized in that the coating is also applied to the anti-of external surface of buildings
In pollution.
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| CN201811531568.0A CN109810597A (en) | 2018-12-14 | 2018-12-14 | A kind of resistant to pollution nano titania photo-catalytic coating of vcehicular tunnel and its application |
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| CN201811531568.0A CN109810597A (en) | 2018-12-14 | 2018-12-14 | A kind of resistant to pollution nano titania photo-catalytic coating of vcehicular tunnel and its application |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114160118A (en) * | 2021-11-03 | 2022-03-11 | 易鹤翔 | Water-resistant nano tin oxide wide-spectral-response photocatalyst porous material and preparation method thereof |
| CN115926561A (en) * | 2022-12-13 | 2023-04-07 | 广州市高速公路有限公司 | Pavement coating material and preparation method thereof |
-
2018
- 2018-12-14 CN CN201811531568.0A patent/CN109810597A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114160118A (en) * | 2021-11-03 | 2022-03-11 | 易鹤翔 | Water-resistant nano tin oxide wide-spectral-response photocatalyst porous material and preparation method thereof |
| CN115926561A (en) * | 2022-12-13 | 2023-04-07 | 广州市高速公路有限公司 | Pavement coating material and preparation method thereof |
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Application publication date: 20190528 |