CN107652866A - A kind of self-cleaning paint, its preparation method and application method for cast concrete base - Google Patents
A kind of self-cleaning paint, its preparation method and application method for cast concrete base Download PDFInfo
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- CN107652866A CN107652866A CN201710798479.1A CN201710798479A CN107652866A CN 107652866 A CN107652866 A CN 107652866A CN 201710798479 A CN201710798479 A CN 201710798479A CN 107652866 A CN107652866 A CN 107652866A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/70—Coating or impregnation for obtaining at least two superposed coatings having different compositions
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D129/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Coating compositions based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Coating compositions based on derivatives of such polymers
- C09D129/02—Homopolymers or copolymers of unsaturated alcohols
- C09D129/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
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- Chemical & Material Sciences (AREA)
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- Application Of Or Painting With Fluid Materials (AREA)
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Abstract
The invention belongs to technical field of coatings, more particularly to a kind of self-cleaning paint, its preparation method and application method for cast concrete base.This is used for the self-cleaning paint of cast concrete base, including intermediate layer and self-cleaning layer, intermediate layer are sprayed in cast concrete base, and self-cleaning layer is sprayed on intermediate layer；The intermediate layer includes polyurethane, ethyl acetate, superchlorinated polyvinyl chloride resin, nano silicon, and the self-cleaning layer includes nano titanium oxide, nano strontium titanate, butanol, polyvinyl alcohol.The self-cleaning paint for cast concrete base of the present invention can utilize the light-catalyzed reaction of the titanium dioxide of self-cleaning layer, realize self-cleaning function, the polyurethane that is included of intermediate layer and superchlorinated polyvinyl chloride resin are respectively provided with corrosion-resistant effect simultaneously, can prevent self-cleaning layer and cast concrete base from directly contacting and corroding or decompose cast concrete base.
Description
Technical field
The invention belongs to technical field of coatings, more particularly to a kind of self-cleaning paint for cast concrete base, its preparation
Method and application method.
Background technology
Stain resistance is always to evaluate a good and bad important indicator of coated coating, and coated coating generally existing is resistance at present
Dirt difference or the unendurable problem of resistance to soiling, while also there is the problem of coating corrosion or decomposition base material, this both influenceed
Coated article it is attractive in appearance, add maintenance cost again, and present environmental issue is also increasingly valued by people, because
This research and development it is a kind of can coating that is self-cleaning and environmentally friendly and not damaging its substrate turn into current urgent problem to be solved.Particularly with mixed
Even more so for solidifying soil matrix bottom, current concrete material purposes is quite varied, greatly to megaplex thing for example bridge, mansion,
Tunnel etc., it is small to see the figure of concrete to common house owed by a citizen construction, the manufacture of sheet material, pouring etc. for beam column, but
It is not there is substantial amounts of spot to see concrete surface in many cases, and many surface of a wound are exactly gone out by weathering corrosion, even if
The concrete surface of coated coating is also not satisfactory, still there is it is not easy to clean, weathering corrosion is serious the problem of, both have impact on
It is attractive in appearance, maintenance cost is added again, therefore protects cast concrete base from weathering exclusively for a kind of self-cleaning environmentally friendly and can of its research and development
The coating of corrosion is extremely necessary for social production application aspect.
The content of the invention
(1) technical problems to be solved
In order to solve the above mentioned problem of prior art, the present invention provide a kind of self-cleaning paint for cast concrete base,
Its preparation method and application method.Its self-cleaning layer is using the light-catalyzed reaction can of titanium dioxide absorption in titanium dioxide table
The organic pollution in face is decomposed into CO2And H2O, together can be clean by normal clear water or rain drop erosion with remaining inorganic matter, from
And self-cleaning function is realized, while the organic matter that automobile is discharged can be also decomposed to a certain extent；What self-cleaning layer also included receives
Rice strontium titanates has excellent photocatalytic activity, can further improve the efficiency of light-catalyzed reaction, optimize the performance of coating；In
The polyurethane that interbed is included has corrosion-resistant effect, prevents self-cleaning layer and cast concrete base from directly contacting and corroding or decomposes mixed
Solidifying soil matrix bottom, superchlorinated polyvinyl chloride resin viscosity is higher, and the film formed has preferable mechanical strength, and its property is extremely
It is stable, have the advantages that corrosion-resistant, water resistant, nonflammable.
(2) technical scheme
In order to achieve the above object, the main technical schemes that the present invention uses include：
A kind of self-cleaning paint for cast concrete base, it includes intermediate layer and self-cleaning layer；
Intermediate layer is mainly the material composition by following mass fraction：
Polyurethane 62-77, ethyl acetate 21-31.5, superchlorinated polyvinyl chloride resin 7.2-12.5, nano silicon 5.3-9.2；
Self-cleaning layer is mainly the material composition by following mass fraction：
Nano titanium oxide 15.5-27, nano strontium titanate 5-9.3, butanol 12-18.5, polyvinyl alcohol 3-7.2.
The polyurethane that intermediate layer is included has corrosion-resistant effect, prevents self-cleaning layer from directly being contacted with cast concrete base and rotten
Cast concrete base is decomposed in erosion；
Superchlorinated polyvinyl chloride resin viscosity is higher, and the film formed has preferable mechanical strength, and its property pole
For stabilization, have the advantages that corrosion-resistant, water resistant, nonflammable；
Suspension stability that nano silicon can improve coating is poor, thixotropy is poor, weatherability is poor, abrasion resistance difference etc.,
Film is set to be greatly improved with cast concrete base bond strength, hardness of film increase, clean surfaces ability is also strengthened；
Self-cleaning layer using titanium dioxide light-catalyzed reaction can absorption titanium dioxide surface organic pollution
It is decomposed into CO2And H2O, together can be clean by normal clear water or rain drop erosion with remaining inorganic matter, so as to realize automatically cleaning work(
Can, while the organic matter that automobile is discharged can be also decomposed to a certain extent；
Nano strontium titanate has excellent photocatalytic activity, can further improve the efficiency of light-catalyzed reaction, and optimization applies
The performance of material；
Polyvinyl alcohol is a kind of excellent adhesive, emulsifying agent, dispersant, can not only optimize the performance of self-cleaning layer, more
The film surface intensity of self-cleaning layer can be improved.
Preferably, the self-cleaning paint for cast concrete base：
Intermediate layer is mainly the material composition by following mass fraction：
Polyurethane 65-74.5, ethyl acetate 24-29.3, superchlorinated polyvinyl chloride resin 7.8-11, nano silicon 6.2-8.5；
Self-cleaning layer is mainly the material composition by following mass fraction：
Nano titanium oxide 17-25.3, nano strontium titanate 5.7-8.5, butanol 13.2-17, polyvinyl alcohol 3.7-6.5.
Preferably, the self-cleaning paint for cast concrete base：
Intermediate layer is mainly the material composition by following mass fraction：
Polyurethane 67.1-70.2, ethyl acetate 25.5-27.2, superchlorinated polyvinyl chloride resin 8.5-10.4, nano silicon
6.7-7.8；
Self-cleaning layer is mainly the material composition by following mass fraction：
Nano titanium oxide 19.2-21.5, nano strontium titanate 6.5-7.3, butanol 14.5-15.7, polyvinyl alcohol 4-6.2.
Preferably, the self-cleaning paint for cast concrete base：
Intermediate layer is mainly the material composition by following mass fraction：
Polyurethane 69.5, ethyl acetate 26.4, superchlorinated polyvinyl chloride resin 9.2, nano silicon 7.1；
Self-cleaning layer is mainly the material composition by following mass fraction：
Nano titanium oxide 20.4, nano strontium titanate 7, butanol 15.2, polyvinyl alcohol 4.5.
The present invention also provides a kind of preparation method of the self-cleaning paint for cast concrete base, including following step simultaneously
Suddenly：
S1, choose coating material：According to the mass fraction, choosing weighs up polyurethane 62-77, ethyl acetate 21-31.5, crosses chloroethene
Olefine resin 7.2-12.5, nano silicon 5.3-9.2, nano titanium oxide 15.5-27, nano strontium titanate 5-9.3, butanol
12-18.5, polyvinyl alcohol 3-7.2；
S2, produce middle layered material：The polyurethane chosen in S1 and superchlorinated polyvinyl chloride resin are added into acetic acid at 15 DEG C -35 DEG C
In ethyl ester, after being mixed into solution, add nano silicon and stir to being in emulsion state, after standing 2h-4h, produce centre
Coating；
S3, produce self-cleaning layered material：The nano titanium oxide chosen in S1 and nano strontium titanate are mixed at 16 DEG C -25 DEG C
And stir, then the mixture of nano titanium oxide and nano strontium titanate and polyvinyl alcohol are added in butanol, and stir extremely
In emulsion state, after standing 1h-3h, self-cleaning coating is produced.
Preferably, described nanometer silicon dioxide particle size is 18-52 nanometers.
Preferably, the mixture of nano titanium oxide and nano strontium titanate should be first added in the S3, adds polyethylene afterwards
Alcohol.
Preferably, the mixing temperature in described S2 and S3 is respectively 20 DEG C -25 DEG C, 18 DEG C -20 DEG C.
The present invention additionally provides a kind of application method of the self-cleaning paint for cast concrete base, including following step simultaneously
Suddenly：
S1, intermediate layer sprayed in cast concrete base；
S2, self-cleaning layer sprayed on intermediate layer.
(3) beneficial effect
The beneficial effects of the invention are as follows：Provided by the present invention for the self-cleaning paint of cast concrete base, its self-cleaning layer tool
There is dust to be not easy to adhere to, effectively decompose the advantages of greasy dirt.In actual use, only need to by normal clear water or rain-out,
The cleaning of matrix can be kept, so as to play self-cleaning effect, while can also decompose that automobile discharged to a certain extent has
Machine thing, have environment-friendly function concurrently, the nano strontium titanate that self-cleaning layer is included has excellent photocatalytic activity, can further improve
The efficiency of light-catalyzed reaction, optimize the performance of coating；The polyurethane that intermediate layer is included has corrosion-resistant effect, prevents self-cleaning layer
Directly contacted with cast concrete base and corrode or decompose cast concrete base, superchlorinated polyvinyl chloride resin viscosity is higher, is formed
Film has a preferable mechanical strength, and its property is extremely stable, have the advantages that it is corrosion-resistant, water resistant, nonflammable,
And suspension stability that nano silicon can improve coating is poor, thixotropy is poor, weatherability is poor, abrasion resistance difference etc., makes film
Greatly improved with cast concrete base bond strength, hardness of film increase, clean surfaces ability is also strengthened.
Using the coating of self-cleaning paint of the present invention, smooth in appearance becomes clear, very attractive in appearance；Wherein interbed persistence is good, makes
Valency is cheap, has very high market value.
Embodiment
In order to preferably explain the present invention, in order to understand, below by embodiment, present invention work is retouched in detail
State.
A kind of self-cleaning paint for cast concrete base, it includes intermediate layer and self-cleaning layer；
Intermediate layer is mainly the material composition by following mass fraction：
Polyurethane 62-77, ethyl acetate 21-31.5, superchlorinated polyvinyl chloride resin 7.2-12.5, nano silicon 5.3-9.2；
Self-cleaning layer is mainly the material composition by following mass fraction：
Nano titanium oxide 15.5-27, nano strontium titanate 5-9.3, butanol 12-18.5, polyvinyl alcohol 3-7.2.
The polyurethane that intermediate layer is included has corrosion-resistant effect, prevents self-cleaning layer from directly being contacted with cast concrete base and rotten
Cast concrete base is decomposed in erosion；
Superchlorinated polyvinyl chloride resin viscosity is higher, and the film formed has preferable mechanical strength, and its property pole
For stabilization, have the advantages that corrosion-resistant, water resistant, nonflammable；
Suspension stability that nano silicon can improve coating is poor, thixotropy is poor, weatherability is poor, abrasion resistance difference etc.,
Film is set to be greatly improved with wall bond strength, hardness of film increase, clean surfaces ability is also strengthened；
Self-cleaning layer using titanium dioxide light-catalyzed reaction can absorption titanium dioxide surface organic pollution
It is decomposed into CO2And H2O, together can be clean by normal clear water or rain drop erosion with remaining inorganic matter, so as to realize automatically cleaning work(
Can, while the organic matter that automobile is discharged can be also decomposed to a certain extent；
Nano strontium titanate has excellent photocatalytic activity, can further improve the efficiency of light-catalyzed reaction, and optimization applies
The performance of material；
Polyvinyl alcohol is a kind of excellent adhesive, emulsifying agent, dispersant, can not only optimize the performance of self-cleaning layer, more
The film surface intensity of self-cleaning layer can be improved.
The present invention also provides a kind of preparation method of the self-cleaning paint for cast concrete base, including following step simultaneously
Suddenly：
S1, choose coating material：According to the mass fraction, choosing weighs up polyurethane 62-77, ethyl acetate 21-31.5, crosses chloroethene
Olefine resin 7.2-12.5, nano silicon 5.3-9.2, nano titanium oxide 15.5-27, nano silicon 5-9.3, butanol
12-18.5, polyvinyl alcohol 3-7.2；
S2, produce middle layered material：The polyurethane chosen in S1 and superchlorinated polyvinyl chloride resin are added into acetic acid at 15 DEG C -35 DEG C
In ethyl ester, after being mixed into solution, add nano silicon and stir to being in emulsion state, after standing 2h-4h, produce centre
Coating；
S3, produce self-cleaning layered material：The nano titanium oxide chosen in S1 and nano strontium titanate are mixed at 16 DEG C -25 DEG C
And stir, then the mixture of nano titanium oxide and nano strontium titanate and polyvinyl alcohol are added in butanol, and stir extremely
In emulsion state, after standing 1h-3h, self-cleaning coating is produced.
The present invention additionally provides a kind of application method of the self-cleaning paint for cast concrete base, including following step simultaneously
Suddenly：
S1, intermediate layer sprayed in cast concrete base；
S2, self-cleaning layer sprayed on intermediate layer.
Embodiment 1
Material quality：Polyurethane 62g, ethyl acetate 21g, superchlorinated polyvinyl chloride resin 7.2g, nano silicon 5.3g, nanometer
Titanium dioxide 15.5g, nano strontium titanate 5g, butanol 12g, polyvinyl alcohol 3g.
Preparation method：
S1, choose coating material：According to the mass fraction, choosing weighs up polyurethane 62g, ethyl acetate 21g, superchlorinated polyvinyl chloride resin
7.2g, nano silicon 5.3g, nano titanium oxide 15.5g, nano strontium titanate 5g, butanol 12g, polyvinyl alcohol 3g；
S2, produce middle layered material：The polyurethane chosen in S1 and superchlorinated polyvinyl chloride resin are added into ethyl acetate at 15 DEG C
In, after being mixed into solution, add nano silicon and stir to being in emulsion state, after standing 2h, produce intermediate layer coating；
S3, produce self-cleaning layered material：The nano titanium oxide chosen in S1 and nano strontium titanate are mixed and stirred at 16 DEG C
Mix uniformly, then the mixture of nano titanium oxide and nano strontium titanate and polyvinyl alcohol are added in butanol, and stir in breast
Shape liquid, after standing 1h, produce self-cleaning coating.
Preferably, described nanometer silicon dioxide particle size is 18 nanometers.
Preferably, the mixture of nano titanium oxide and nano strontium titanate should be first added in the S3, adds polyethylene afterwards
Alcohol.
Application method：
S1, intermediate layer sprayed in cast concrete base；
S2, self-cleaning layer sprayed on intermediate layer.
Embodiment 2
Material quality：Polyurethane 77g, ethyl acetate 31.5g, superchlorinated polyvinyl chloride resin 12.5g, nano silicon 9.2g,
Nano titanium oxide 27g, nano strontium titanate 9.3g, butanol 18.5g, polyvinyl alcohol 7.2g.
Preparation method：
S1, choose coating material：According to the mass fraction, choosing weighs up polyurethane 77g, ethyl acetate 31.5g, Vinylidene Chloride tree
Fat 12.5g, nano silicon 9.2g, nano titanium oxide 27g, nano strontium titanate 9.3g, butanol 18.5g, polyvinyl alcohol
7.2g；
S2, produce middle layered material：The polyurethane chosen in S1 and superchlorinated polyvinyl chloride resin are added into ethyl acetate at 35 DEG C
In, after being mixed into solution, add nano silicon and stir to being in emulsion state, after standing 4h, produce intermediate layer coating；
S3, produce self-cleaning layered material：The nano titanium oxide chosen in S1 and nano strontium titanate are mixed and stirred at 25 DEG C
Mix uniformly, then the mixture of nano titanium oxide and nano strontium titanate and polyvinyl alcohol are added in butanol, and stir in breast
Shape liquid, after standing 3h, produce self-cleaning coating.
Preferably, described nanometer silicon dioxide particle size is 52 nanometers.
Preferably, the mixture of nano titanium oxide and nano strontium titanate should be first added in the S3, adds polyethylene afterwards
Alcohol.
Application method：
S1, intermediate layer sprayed in cast concrete base；
S2, self-cleaning layer sprayed on intermediate layer.
Embodiment 3
Material quality：Polyurethane 69.5g, ethyl acetate 26.4g, superchlorinated polyvinyl chloride resin 9.2g, nano silicon 7.1g,
Nano titanium oxide 20.4g, nano strontium titanate 7g, butanol 15.2g, polyvinyl alcohol 4.5g.
Preparation method：
S1, choose coating material：According to the mass fraction, choosing weighs up polyurethane 69.5g, ethyl acetate 26.4g, Vinylidene Chloride
Resin 9.2g, nano silicon 7.1g, nano titanium oxide 20.4g, nano strontium titanate 7g, butanol 15.2g, polyvinyl alcohol
4.5g；
S2, produce middle layered material：The polyurethane chosen in S1 and superchlorinated polyvinyl chloride resin are added into ethyl acetate at 23 DEG C
In, after being mixed into solution, add nano silicon and stir to being in emulsion state, after standing 3h, produce intermediate layer coating；
S3, produce self-cleaning layered material：The nano titanium oxide chosen in S1 and nano strontium titanate are mixed and stirred at 19 DEG C
Mix uniformly, then the mixture of nano titanium oxide and nano strontium titanate and polyvinyl alcohol are added in butanol, and stir in breast
Shape liquid, after standing 2h, produce self-cleaning coating.
Preferably, described nanometer silicon dioxide particle size is 36 nanometers.
Preferably, the mixture of nano titanium oxide and nano strontium titanate should be first added in the S3, adds polyethylene afterwards
Alcohol.
Application method：
S1, intermediate layer sprayed in cast concrete base；
S2, self-cleaning layer sprayed on intermediate layer.
Embodiment 4
Material quality：Polyurethane 65g, ethyl acetate 24g, superchlorinated polyvinyl chloride resin 7.8g, nano silicon 6.2g, nanometer
Titanium dioxide 17g, nano strontium titanate 5.7g, butanol 13.2g, polyvinyl alcohol 3.7g.
Preparation method：
S1, choose coating material：According to the mass fraction, choosing weighs up polyurethane 65g, ethyl acetate 24g, superchlorinated polyvinyl chloride resin
7.8g, nano silicon 6.2g, nano titanium oxide 17g, nano strontium titanate 5.7g, butanol 13.2g, polyvinyl alcohol 3.7g；
S2, produce middle layered material：The polyurethane chosen in S1 and superchlorinated polyvinyl chloride resin are added into ethyl acetate at 18 DEG C
In, after being mixed into solution, add nano silicon and stir to being in emulsion state, after standing 2.2h, produce intermediate layer painting
Material；
S3, produce self-cleaning layered material：The nano titanium oxide chosen in S1 and nano strontium titanate are mixed and stirred at 17 DEG C
Mix uniformly, then the mixture of nano titanium oxide and nano strontium titanate and polyvinyl alcohol are added in butanol, and stir in breast
Shape liquid, after standing 1.2h, produce self-cleaning coating.
Preferably, described nanometer silicon dioxide particle size is 20 nanometers.
Preferably, the mixture of nano titanium oxide and nano strontium titanate should be first added in the S3, adds polyethylene afterwards
Alcohol.
Application method：
S1, intermediate layer sprayed in cast concrete base；
S2, self-cleaning layer sprayed on intermediate layer.
Embodiment 5
Material quality：Polyurethane 74.5g, ethyl acetate 29.3g, superchlorinated polyvinyl chloride resin 11g, nano silicon 8.5g,
Nano titanium oxide 25.3g, nano strontium titanate 8.5g, butanol 17g, polyvinyl alcohol 6.5g.
Preparation method：
S1, choose coating material：According to the mass fraction, choosing weighs up polyurethane 74.5g, ethyl acetate 29.3g, Vinylidene Chloride
Resin 11g, nano silicon 8.5g, nano titanium oxide 25.3g, nano strontium titanate 8.5g, butanol 17g, polyvinyl alcohol
6.5g；
S2, produce middle layered material：The polyurethane chosen in S1 and superchlorinated polyvinyl chloride resin are added into ethyl acetate at 32 DEG C
In, after being mixed into solution, add nano silicon and stir to being in emulsion state, after standing 3.7h, produce intermediate layer painting
Material；
S3, produce self-cleaning layered material：The nano titanium oxide chosen in S1 and nano strontium titanate are mixed and stirred at 23 DEG C
Mix uniformly, then the mixture of nano titanium oxide and nano strontium titanate and polyvinyl alcohol are added in butanol, and stir in breast
Shape liquid, after standing 2.8h, produce self-cleaning coating.
Preferably, described nanometer silicon dioxide particle size is 50 nanometers.
Preferably, the mixture of nano titanium oxide and nano strontium titanate should be first added in the S3, adds polyethylene afterwards
Alcohol.
Application method：
S1, intermediate layer sprayed in cast concrete base；
S2, self-cleaning layer sprayed on intermediate layer.
Embodiment 6
Material quality：Polyurethane 67.1g, ethyl acetate 25.5g, superchlorinated polyvinyl chloride resin 8.5g, nano silicon 6.7g,
Nano titanium oxide 19.2g, nano strontium titanate 6.5g, butanol 14.5g, polyvinyl alcohol 4g.
Preparation method：
S1, choose coating material：According to the mass fraction, choosing weighs up polyurethane 67.1g, ethyl acetate 25.5g, Vinylidene Chloride
Resin 8.5g, nano silicon 6.7g, nano titanium oxide 19.2g, nano strontium titanate 6.5g, butanol 14.5g, polyvinyl alcohol
4g；
S2, produce middle layered material：The polyurethane chosen in S1 and superchlorinated polyvinyl chloride resin are added into ethyl acetate at 20 DEG C
In, after being mixed into solution, add nano silicon and stir to being in emulsion state, after standing 2.7h, produce intermediate layer painting
Material；
S3, produce self-cleaning layered material：The nano titanium oxide chosen in S1 and nano strontium titanate are mixed and stirred at 18 DEG C
Mix uniformly, then the mixture of nano titanium oxide and nano strontium titanate and polyvinyl alcohol are added in butanol, and stir in breast
Shape liquid, after standing 1.8h, produce self-cleaning coating.
Preferably, described nanometer silicon dioxide particle size is 30 nanometers.
Preferably, the mixture of nano titanium oxide and nano strontium titanate should be first added in the S3, adds polyethylene afterwards
Alcohol.
Application method：
S1, intermediate layer sprayed in cast concrete base；
S2, self-cleaning layer sprayed on intermediate layer.
Embodiment 7
Material quality：Polyurethane 70.2g, ethyl acetate 27.2g, superchlorinated polyvinyl chloride resin 10.4g, nano silicon
7.8g, nano titanium oxide 21.5g, nano strontium titanate 7.3g, butanol 15.7g, polyvinyl alcohol 6.2g.
Preparation method：
S1, choose coating material：According to the mass fraction, choosing weighs up polyurethane 70.2g, ethyl acetate 27.2g, Vinylidene Chloride
Resin 10.4g, nano silicon 7.8g, nano titanium oxide 21.5g, nano strontium titanate 7.3g, butanol 15.7g, polyethylene
Alcohol 6.2g；
S2, produce middle layered material：The polyurethane chosen in S1 and superchlorinated polyvinyl chloride resin are added into ethyl acetate at 25 DEG C
In, after being mixed into solution, add nano silicon and stir to being in emulsion state, after standing 3.5h, produce intermediate layer painting
Material；
S3, produce self-cleaning layered material：The nano titanium oxide chosen in S1 and nano strontium titanate are mixed and stirred at 20 DEG C
Mix uniformly, then the mixture of nano titanium oxide and nano strontium titanate and polyvinyl alcohol are added in butanol, and stir in breast
Shape liquid, after standing 2.4h, produce self-cleaning coating.
Preferably, described nanometer silicon dioxide particle size is 40 nanometers.
Preferably, the mixture of nano titanium oxide and nano strontium titanate should be first added in the S3, adds polyethylene afterwards
Alcohol.
Application method：
S1, intermediate layer sprayed in cast concrete base；
S2, self-cleaning layer sprayed on intermediate layer.
Below by way of corresponding experiment, the invention will be further described：
The self-cleaning paint for cast concrete base prepared using the present invention, each side index is carried out with traditional coating
And performance test, as a result it see the table below.
In summary, the self-cleaning paint for cast concrete base of the invention, there is dust to be not easy to adhere to, effectively decompose
The advantages of greasy dirt.In actual use, normal clear water or rain-out need to only be passed through, you can keep the cleaning of matrix, play
Self-cleaning effect, while the organic matter that automobile is discharged can be also decomposed to a certain extent, have environment-friendly function concurrently, and outside its paint film
Go sightseeing sliding bright, it is very attractive in appearance；The polyurethane that wherein interbed is included has corrosion resistance, prevents self-cleaning layer and cast concrete base
Directly contact and corrode or decompose cast concrete base, and persistence is good, it is cheap, there is very high market value.
Claims (9)
1. a kind of self-cleaning paint for cast concrete base, it includes intermediate layer and self-cleaning layer, it is characterised in that
The intermediate layer includes polyurethane, ethyl acetate, superchlorinated polyvinyl chloride resin, nano silicon, and its mass fraction is：Poly- ammonia
Ester 62-77, ethyl acetate 21-31.5, superchlorinated polyvinyl chloride resin 7.2-12.5, nano silicon 5.3-9.2；
The self-cleaning layer includes nano titanium oxide, nano strontium titanate, butanol, polyvinyl alcohol, and its mass fraction is：Nano-silica
Change titanium 15.5-27, nano strontium titanate 5-9.3, butanol 12-18.5, polyvinyl alcohol 3-7.2.
2. it is used for the self-cleaning paint of cast concrete base as claimed in claim 1, it is characterised in that
The mass fraction in intermediate layer is：Polyurethane 65-74.5, ethyl acetate 24-29.3, superchlorinated polyvinyl chloride resin 7.8-11, nanometer
Silica 6.2-8.5；
The mass fraction of self-cleaning layer is：Nano titanium oxide 17-25.3, nano strontium titanate 5.7-8.5, butanol 13.2-17, poly- second
Enol 3.7-6.5.
3. it is used for the self-cleaning paint of cast concrete base as claimed in claim 2, it is characterised in that
The mass fraction in intermediate layer is：Polyurethane 67.1-70.2, ethyl acetate 25.5-27.2, superchlorinated polyvinyl chloride resin 8.5-
10.4th, nano silicon 6.7-7.8；
The mass fraction of self-cleaning layer is：Nano titanium oxide 19.2-21.5, nano strontium titanate 6.5-7.3, butanol 14.5-15.7,
Polyvinyl alcohol 4-6.2.
4. it is used for the self-cleaning paint of cast concrete base as claimed in claim 3, it is characterised in that
The mass fraction in intermediate layer is：Polyurethane 69.5, ethyl acetate 26.4, superchlorinated polyvinyl chloride resin 9.2, nano silicon
7.1；
The mass fraction of self-cleaning layer is：Nano titanium oxide 20.4, nano strontium titanate 7, butanol 15.2, polyvinyl alcohol 4.5.
5. the preparation method of a kind of self-cleaning paint for cast concrete base, it is characterised in that comprise the following steps：
S1, choose coating material：According to the mass fraction, choosing weighs up polyurethane 62-77, ethyl acetate 21-31.5, Vinylidene Chloride tree
Fat 7.2-12.5, nano silicon 5.3-9.2, nano titanium oxide 15.5-27, nano strontium titanate 5-9.3, butanol 12-
18.5th, polyvinyl alcohol 3-7.2；
S2, produce middle layered material：The polyurethane chosen in S1 and superchlorinated polyvinyl chloride resin are added into ethyl acetate at 15 DEG C -35 DEG C
In, after being mixed into solution, add nano silicon and stir to being in emulsion state, after standing 2h-4h, produce intermediate layer painting
Material；
S3, produce self-cleaning layered material：The nano titanium oxide chosen in S1 and nano strontium titanate are mixed and stirred at 16 DEG C -25 DEG C
Mix uniformly, then the mixture of nano titanium oxide and nano strontium titanate and polyvinyl alcohol are added in butanol, and stir in breast
Shape liquid, after standing 1h-3h, produce self-cleaning coating.
6. it is used for the preparation method of the self-cleaning paint of cast concrete base as claimed in claim 5, it is characterised in that：Described
Nanometer silicon dioxide particle size is 18-52 nanometers.
7. it is used for the preparation method of the self-cleaning paint of cast concrete base as claimed in claim 5, it is characterised in that：The S3
In should first add the mixture of nano titanium oxide and nano strontium titanate, add polyvinyl alcohol afterwards.
8. it is used for the preparation method of the self-cleaning paint of cast concrete base as claimed in claim 5, it is characterised in that：Described
Mixing temperature in S2 and S3 is respectively 20 DEG C -25 DEG C, 18 DEG C -20 DEG C.
9. a kind of application method of the self-cleaning paint for cast concrete base described in any one of claim 1-4, its feature
It is, it comprises the following steps：
S1, intermediate layer sprayed in cast concrete base；
S2, self-cleaning layer sprayed on intermediate layer.
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| CN109321084A (en) * | 2018-09-14 | 2019-02-12 | 北京城建十六建筑工程有限责任公司 | A kind of self-clean type guardrail paint, preparation method and application method |
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