CN113881256A - Non-surfacing super-hydrophobic stone-like paint and preparation method thereof - Google Patents
Non-surfacing super-hydrophobic stone-like paint and preparation method thereof Download PDFInfo
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- CN113881256A CN113881256A CN202111281104.0A CN202111281104A CN113881256A CN 113881256 A CN113881256 A CN 113881256A CN 202111281104 A CN202111281104 A CN 202111281104A CN 113881256 A CN113881256 A CN 113881256A
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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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- Life Sciences & Earth Sciences (AREA)
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- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to a non-overlay super-hydrophobic real stone paint and a preparation method thereof, wherein the paint is prepared from the following components in parts by mass: 70-80 parts of water, 1.5-2 parts of hydroxyethyl cellulose, 1.5-2 parts of multifunctional auxiliary agent, 2-3 parts of freeze-thaw resistant stabilizer, 6-7 parts of film forming auxiliary agent, 0.5-0.6 part of defoaming agent, 150 parts of polyacrylate emulsion, 160 parts of water-based wax emulsion, 20-30 parts of water-based acrylic polyurethane copolymer dispersion, 1.5-2 parts of thickening agent, 2-3 parts of bactericidal preservative and 700.9-704.5 parts of natural colored quartz sand. The water-based wax emulsion is hydrophobic, can improve the stain resistance of the stone-like paint after being added, greatly reduces the water absorption capacity, and prevents the paint film from whitening and whiskering due to water absorption; the weather resistance of the waterborne acrylic polyurethane dispersion can be improved by matching the waterborne acrylic polyurethane dispersion with the pure acrylic emulsion, and the yellowing of a paint film can be effectively prevented.
Description
Technical Field
The invention belongs to the field of coatings, and particularly relates to a non-surfacing super-hydrophobic stone-like paint and a preparation method thereof.
Background
The stone-like paint is a thick paste type paint made up by using acrylic acid polymer as adhesive, using natural colour sand with different colours as main aggregate and adding various assistants, and features natural, stable and splendid natural stone material, etc. it is suitable for decorating internal and external walls of various buildings.
However, the real stone paint in the current market is easy to be dusty, not dirty, poor in weather resistance and easy to be yellowed, and the water absorption capacity of a paint film is large, so that the paint film is whitish, the performance requirements can be met only by matching with finish paint, the labor cost is high, the construction is not uniform, and the blooming is easy to cause, so that the finish-free super-hydrophobic real stone paint needs to be invented.
Disclosure of Invention
The invention provides a non-surfacing super-hydrophobic stone-like paint and a preparation method thereof.
The invention is realized by the following technical scheme:
the cover-free super-hydrophobic real stone paint is prepared from the following components in parts by mass:
70-80 parts of water, 1.5-2 parts of hydroxyethyl cellulose, 1.5-2 parts of multifunctional auxiliary agent, 2-3 parts of freeze-thaw resistant stabilizer, 6-7 parts of film forming auxiliary agent, 0.5-0.6 part of defoaming agent, 150 parts of polyacrylate emulsion, 160 parts of water-based wax emulsion, 20-30 parts of water-based acrylic polyurethane copolymer dispersion, 1.5-2 parts of thickening agent, 2-3 parts of bactericidal preservative and 700.9-704.5 parts of natural colored quartz sand.
Further, the aqueous wax emulsion is E360 produced by KEIM of Germany.
Further, the aqueous acrylic polyurethane copolymer dispersion was W129 produced by tesman.
Further, the polyacrylate emulsion is RS706T pure acrylate emulsion produced by Badful.
Further, the granularity of the quartz sand is 10-200 meshes and SiO2The content is more than or equal to 90-99 percent, and Fe2O3The content is less than or equal to 0.06-0.02%. (Nanhai Jiacheng mining institute)
Further, the hydroxyethyl cellulose is HBR250 of Himalan. Its 2% aqueous solution viscosity is 25000-50000 CP.
Further, the sterilizing preservative is Solel RS.
Further, the film forming aid is Istman TEXANO. The emulsion has excellent hydrolytic stability, high coalescence efficiency, moderate volatilization rate and low freezing point, can effectively reduce the lowest film-forming temperature of the coating and improve the stability and uniformity of the pigment in the coating, also can soften emulsion particles and bond the emulsion particles together, and improves the scrub resistance and weather resistance of a paint film.
Further, the multifunctional auxiliary agent is Dow AMP-95. It has effects in regulating pH, dispersing, and moistening.
Further, the antifoaming agent is NXZ produced by Nopock.
Further, the freeze-thaw resistant stabilizer is FT-68 produced by Askalimeris. The paint is a zero-VOC, APE-free and environment-friendly auxiliary agent, and can adjust and improve the freeze-thaw stability, the gloss and the stain resistance of the paint.
Further, the thickening agent is a Dow DR-50 hydrophobic modified alkali swelling thickening agent.
A preparation method of a non-surfacing super-hydrophobic real stone paint comprises the following specific steps:
putting water into a high-speed dispersion machine, then adjusting the rotation speed of the high-speed dispersion machine to 1000-1200 r/min, adding hydroxyethyl cellulose, and stirring for 3-5 min;
then, the rotation speed of the high-speed dispersion machine is adjusted to be 500-800 r/min, the multifunctional additive and the defoaming agent are added, and the mixture is stirred for 2-3 min;
then, the rotation speed of a high-speed dispersion machine is adjusted to 1000-1200 rpm, then polyacrylate emulsion, water-based wax emulsion and water-based acrylic polyurethane copolymer dispersoid are added and stirred for 2-3 min, then anti-freeze-thaw stabilizer, film-forming assistant and thickener are added and stirred for 2-3 min, and then, sterilization preservative is added and stirred for 2-3 min;
finally, the rotation speed of the high-speed dispersion machine is adjusted to 300-500 rpm, then the natural colored quartz sand is added, and the mixture is uniformly stirred to obtain the cover-free super-hydrophobic real stone paint.
The water-based wax emulsion has a good hydrophobic effect, and can effectively improve the stain resistance and the water resistance. The waterborne acrylic polyurethane dispersion has excellent yellowing resistance, and can effectively improve the weather resistance of a paint film.
Compared with the prior art, the invention has the following advantages:
the water-based wax emulsion is hydrophobic, can improve the stain resistance of the stone-like paint after being added, greatly reduces the water absorption capacity, and prevents the paint film from whitening and whiskering due to water absorption; the weather resistance of the waterborne acrylic polyurethane dispersion can be improved by matching the waterborne acrylic polyurethane dispersion with the pure acrylic emulsion, and the yellowing of a paint film can be effectively prevented.
Detailed Description
The invention will be further elucidated with reference to the embodiments described hereinafter
In the present invention, the units indicating the content of the raw materials are in parts by weight and in kilograms unless otherwise specified.
In addition, other raw materials used in the present invention are those generally used in the art. The present invention is further illustrated by the following preferred examples of the invention, which are intended to be illustrative only and are not intended to be limiting.
Example 1
A preparation method of a non-surfacing super-hydrophobic real stone paint comprises the following specific steps:
putting water into a high-speed dispersion machine, then regulating the rotation speed of the high-speed dispersion machine to 1000 revolutions per minute, adding hydroxyethyl cellulose, and stirring for 5 minutes;
then, the rotation speed of the high-speed dispersion machine is adjusted to 500 revolutions per minute, the multifunctional auxiliary agent and the defoaming agent are added, and stirring is carried out for 3 minutes;
then, the rotation speed of a high-speed dispersion machine is adjusted to 1000 revolutions per minute, then polyacrylate emulsion, water-based wax emulsion and water-based acrylic polyurethane copolymer dispersion are added, stirring is carried out for 3 minutes, then, freeze-thaw resistant stabilizer, film forming assistant and thickening agent are added, stirring is carried out for 3 minutes, then, sterilization preservative is added, and stirring is carried out for 3 minutes;
and finally, regulating the rotation speed of the high-speed dispersion machine to 300 revolutions per minute, adding natural colored quartz sand, and uniformly stirring to obtain the cover-free super-hydrophobic real stone paint.
Example 2
A preparation method of a non-surfacing super-hydrophobic real stone paint comprises the following specific steps:
putting water into a high-speed dispersion machine, then regulating the rotation speed of the high-speed dispersion machine to 1200 r/min, adding hydroxyethyl cellulose, and stirring for 3 min;
then, the rotation speed of the high-speed dispersion machine is adjusted to 800 revolutions per minute, the multifunctional auxiliary agent and the defoaming agent are added, and stirring is carried out for 2 minutes;
then, the rotation speed of a high-speed dispersion machine is adjusted to 1200 r/min, then polyacrylate emulsion, water-based wax emulsion and water-based acrylic polyurethane copolymer dispersion are added, stirring is carried out for 2 min, then freeze-thaw resistant stabilizer, film forming assistant and thickening agent are added, stirring is carried out for 2 min, then, sterilization preservative is added, and stirring is carried out for 2 min;
and finally, regulating the rotation speed of the high-speed dispersion machine to 500 revolutions per minute, adding natural colored quartz sand, and uniformly stirring to obtain the cover-free super-hydrophobic real stone paint.
Example 3
A preparation method of a non-surfacing super-hydrophobic real stone paint comprises the following specific steps:
putting water into a high-speed dispersion machine, then regulating the rotation speed of the high-speed dispersion machine to 1100 r/min, adding hydroxyethyl cellulose, and stirring for 4 min;
then, the rotation speed of the high-speed dispersion machine is adjusted to 700 revolutions per minute, the multifunctional auxiliary agent and the defoaming agent are added, and stirring is carried out for 2.5 minutes;
then, the rotation speed of a high-speed dispersion machine is adjusted to 1100 r/min, then polyacrylate emulsion, water-based wax emulsion and water-based acrylic polyurethane copolymer dispersion are added, stirring is carried out for 2.5 min, then freeze-thaw resistant stabilizer, film forming additive and thickening agent are added, stirring is carried out for 2.5 min, then sterilization preservative is added, and stirring is carried out for 2.5 min;
and finally, regulating the rotation speed of the high-speed dispersion machine to 400 revolutions per minute, adding natural colored quartz sand, and uniformly stirring to obtain the cover-free super-hydrophobic real stone paint.
Comparative example 1
A preparation method of a non-surfacing super-hydrophobic real stone paint comprises the following specific steps:
putting water into a high-speed dispersion machine, then regulating the rotation speed of the high-speed dispersion machine to 1100 r/min, adding hydroxyethyl cellulose, and stirring for 4 min;
then, the rotation speed of the high-speed dispersion machine is adjusted to 700 revolutions per minute, the multifunctional auxiliary agent and the defoaming agent are added, and stirring is carried out for 2.5 minutes;
then, the rotation speed of a high-speed dispersion machine is adjusted to 1100 r/min, then polyacrylate emulsion is added, stirring is carried out for 2.5 min, then anti-freeze thawing stabilizer, film-forming assistant and thickening agent are added, stirring is carried out for 2.5 min, then sterilization preservative is added, and stirring is carried out for 2.5 min;
and finally, regulating the rotation speed of the high-speed dispersion machine to 400 revolutions per minute, adding natural colored quartz sand, and uniformly stirring to obtain the cover-free super-hydrophobic real stone paint.
This comparative example compares to the examples without the addition of an aqueous wax emulsion and an aqueous acrylic polyurethane copolymer dispersion.
Comparative example 2
A preparation method of a non-surfacing super-hydrophobic real stone paint comprises the following specific steps:
putting water into a high-speed dispersion machine, then regulating the rotation speed of the high-speed dispersion machine to 1100 r/min, adding hydroxyethyl cellulose, and stirring for 4 min;
then, the rotation speed of the high-speed dispersion machine is adjusted to 700 revolutions per minute, the multifunctional auxiliary agent and the defoaming agent are added, and stirring is carried out for 2.5 minutes;
then, the rotation speed of a high-speed dispersion machine is adjusted to 1100 r/min, then the aqueous acrylic polyurethane copolymer dispersion is added, the stirring is carried out for 2.5 min, then the anti-freeze thawing stabilizer, the film-forming assistant and the thickening agent are added, the stirring is carried out for 2.5 min, then the sterilization preservative is added, and the stirring is carried out for 2.5 min;
and finally, regulating the rotation speed of the high-speed dispersion machine to 400 revolutions per minute, adding natural colored quartz sand, and uniformly stirring to obtain the cover-free super-hydrophobic real stone paint.
This comparative example compares to the examples without the addition of an aqueous wax emulsion and a polyacrylate emulsion.
Wherein, the amount of each component of each example and comparative example is shown in the following table:
the results of the performance tests of the three examples and comparative examples are as follows:
as is clear from the above table, examples 1 to 3 of the present invention are excellent in weathering resistance and stain resistance, high in adhesive strength, low in water absorption, and none of the other properties is abnormal. Therefore, the non-top-coat super-hydrophobic real stone paint has good stain resistance, low water absorption capacity and capability of preventing the paint film from whitening and whiskering due to water absorption; the paint film has good weather resistance and can be effectively prevented from yellowing.
Claims (10)
1. The cover-free super-hydrophobic real stone paint is characterized in that: the composition is prepared from the following components in parts by mass:
70-80 parts of water, 1.5-2 parts of hydroxyethyl cellulose, 1.5-2 parts of multifunctional auxiliary agent, 2-3 parts of freeze-thaw resistant stabilizer, 6-7 parts of film forming auxiliary agent, 0.5-0.6 part of defoaming agent, 150 parts of polyacrylate emulsion, 160 parts of water-based wax emulsion, 20-30 parts of water-based acrylic polyurethane copolymer dispersion, 1.5-2 parts of thickening agent, 2-3 parts of bactericidal preservative and 700.9-704.5 parts of natural colored quartz sand.
2. The finishing-free super-hydrophobic real stone paint as claimed in claim 1, wherein: the aqueous wax emulsion is E360 produced by KEIM of Germany.
3. The finishing-free super-hydrophobic real stone paint as claimed in claim 1, wherein: the aqueous acrylic polyurethane copolymer dispersion was W129 produced by tesman.
4. The finishing-free super-hydrophobic real stone paint as claimed in claim 1, wherein: the polyacrylate emulsion is RS706T pure acrylate emulsion produced by Badfu.
5. A hands-free cover as claimed in claim 1Super hydrophobic real mineral varnish of face, its characterized in that: the natural color quartz sand has a particle size of 10-200 meshes and SiO2The content is more than or equal to 90-99 percent, and Fe2O3The content is less than or equal to 0.06-0.02%.
6. The finishing-free super-hydrophobic real stone paint as claimed in claim 1, wherein: the hydroxyethyl cellulose is HBR250 of the methylene blue.
7. The finishing-free super-hydrophobic real stone paint as claimed in claim 1, wherein: the sterilizing preservative is Solel RS.
8. The finishing-free super-hydrophobic real stone paint as claimed in claim 1, wherein: the film-forming assistant is Istman TEXANO.
9. The finishing-free super-hydrophobic real stone paint as claimed in claim 1, wherein: the multifunctional auxiliary agent is Dow AMP-95;
the antifoaming agent is NXZ produced by Nopock;
the freeze-thaw resisting stabilizer is FT-68 produced by Askalimeris;
the thickening agent is a Dow DR-50 hydrophobic modified alkali swelling thickening agent.
10. The preparation method of the finishing-free super-hydrophobic real stone paint as claimed in any one of claims 1 to 9, wherein the method comprises the following steps: the method comprises the following specific steps:
putting water into a high-speed dispersion machine, then adjusting the rotation speed of the high-speed dispersion machine to 1000-1200 r/min, adding hydroxyethyl cellulose, and stirring for 3-5 min;
then, the rotation speed of the high-speed dispersion machine is adjusted to be 500-800 r/min, the multifunctional additive and the defoaming agent are added, and the mixture is stirred for 2-3 min;
then, the rotation speed of a high-speed dispersion machine is adjusted to 1000-1200 rpm, then polyacrylate emulsion, water-based wax emulsion and water-based acrylic polyurethane copolymer dispersoid are added and stirred for 2-3 min, then anti-freeze-thaw stabilizer, film-forming assistant and thickener are added and stirred for 2-3 min, and then, sterilization preservative is added and stirred for 2-3 min;
finally, the rotation speed of the high-speed dispersion machine is adjusted to 300-500 rpm, then the natural colored quartz sand is added, and the mixture is uniformly stirred to obtain the cover-free super-hydrophobic real stone paint.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111281104.0A CN113881256A (en) | 2021-11-01 | 2021-11-01 | Non-surfacing super-hydrophobic stone-like paint and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111281104.0A CN113881256A (en) | 2021-11-01 | 2021-11-01 | Non-surfacing super-hydrophobic stone-like paint and preparation method thereof |
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| CN113881256A true CN113881256A (en) | 2022-01-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116285539A (en) * | 2022-12-28 | 2023-06-23 | 湖北三棵树新材料科技有限公司 | Inorganic high-hardness texture coating for outer wall and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108929069A (en) * | 2018-08-21 | 2018-12-04 | 江西碧枫环保建材科技有限公司 | A kind of self-cleaning lacquer and preparation method thereof |
| CN110551431A (en) * | 2019-08-28 | 2019-12-10 | 北京莱恩斯新材料科技有限公司 | ultrathin composite rock slice stone-like paint and preparation method and application thereof |
| CN111961358A (en) * | 2020-08-25 | 2020-11-20 | 三棵树涂料股份有限公司 | Odor-removing and aldehyde-removing stone-like paint and preparation method thereof |
| CN112126295A (en) * | 2020-09-16 | 2020-12-25 | 漆仙姑新材料技术重庆有限公司 | Nano hydrophobic texture real stone paint |
| CN113429155A (en) * | 2021-07-30 | 2021-09-24 | 福建省三棵树新材料有限公司 | Anti-blooming stone-like paint and preparation method thereof |
-
2021
- 2021-11-01 CN CN202111281104.0A patent/CN113881256A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108929069A (en) * | 2018-08-21 | 2018-12-04 | 江西碧枫环保建材科技有限公司 | A kind of self-cleaning lacquer and preparation method thereof |
| CN110551431A (en) * | 2019-08-28 | 2019-12-10 | 北京莱恩斯新材料科技有限公司 | ultrathin composite rock slice stone-like paint and preparation method and application thereof |
| CN111961358A (en) * | 2020-08-25 | 2020-11-20 | 三棵树涂料股份有限公司 | Odor-removing and aldehyde-removing stone-like paint and preparation method thereof |
| CN112126295A (en) * | 2020-09-16 | 2020-12-25 | 漆仙姑新材料技术重庆有限公司 | Nano hydrophobic texture real stone paint |
| CN113429155A (en) * | 2021-07-30 | 2021-09-24 | 福建省三棵树新材料有限公司 | Anti-blooming stone-like paint and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116285539A (en) * | 2022-12-28 | 2023-06-23 | 湖北三棵树新材料科技有限公司 | Inorganic high-hardness texture coating for outer wall and preparation method thereof |
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Application publication date: 20220104 |