CN113462222B - Aqueous two-component matte hammer paint and preparation method thereof - Google Patents
Aqueous two-component matte hammer paint and preparation method thereof Download PDFInfo
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- CN113462222B CN113462222B CN202110682491.2A CN202110682491A CN113462222B CN 113462222 B CN113462222 B CN 113462222B CN 202110682491 A CN202110682491 A CN 202110682491A CN 113462222 B CN113462222 B CN 113462222B
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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
- C09D5/28—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for wrinkle, crackle, orange-peel, or similar decorative effects
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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
- 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
- C09D7/20—Diluents or solvents
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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
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- 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
- C08K2201/002—Physical properties
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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
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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Abstract
The invention discloses a water-based two-component matte hammer paint and a preparation method thereof, and relates to the field of paint preparation. The hammer paint comprises a component A and a component B, wherein the component A comprises water-based resin, matte powder, color paste, a hammer agent, a cosolvent of the component A, a functional assistant and deionized water of the component A, the color paste comprises pigment, a color paste cosolvent, a bactericide, a color paste defoamer, a color paste dispersant and deionized water of the color paste, and the component B comprises an oily polyisocyanate curing agent and a cosolvent of the component B. The preparation method comprises the following steps: s1, preparing color paste components in advance; s2, preparing a hammer paint component A by adopting the color paste obtained in the step S1 and other components; s3, preparing a hammer paint component B; and S4, mixing the prepared component A and the component B before use. The hammer paint has the advantages that the specially-made color paste and the matte powder are combined, hammer grains with strong stereoscopic impression are formed on the surface of a paint film, the stereoscopic impression is improved without additionally adding silver paste or silver powder, the production cost is reduced, and therefore the application field of the hammer paint is widened.
Description
Technical Field
The invention relates to the technical field of paint preparation, in particular to a water-based two-component matte hammer paint and a preparation method thereof.
Background
The hammer paint is paint with decorative patterns similar to those formed by striking a metal plate with an iron hammer on the surface, is widely used for castings to cover the roughness and unevenness of the surface and has the effect of attractive decoration, and is widely suitable for various instruments, doors and windows, metal counters, machine tool equipment and the like due to clear, elegant and unique hammer marks and three-dimensional sense. The single-component hammer paint mainly comprises synthetic resin, a solvent, aluminum powder, an auxiliary agent and the like, is mainly classified into a single component and a double component, and most of the single-component hammer paint in the market is the double-component hammer paint mainly comprising acrylic polyurethane silver powder because the single-component hammer paint has poor weather resistance and water resistance compared with the double-component hammer paint.
Generally, non-floating silver paste or silver powder needs to be added into the traditional hammer paint, the aim is to further promote the formation of 'Benard pits', and the 'Benard pits' belong to the paint film defect of floating color and blooming in the common paint, but can increase the three-dimensional impression of hammer marks in the hammer paint. The silver paste or silver powder is added into the traditional hammer paint, and the raw materials of the silver paste or silver powder are expensive and have higher production cost, so that the application field of the hammer paint is limited. Therefore, on the premise of ensuring that the hammer paint has stronger stereoscopic impression, the development of the water-based two-component hammer paint which is not added with silver paste or silver powder and is widely applied is urgently needed.
Disclosure of Invention
The invention provides a water-based two-component matte hammer paint and a preparation method thereof.
In order to solve the technical problems, one embodiment of the invention provides a water-based two-component matte hammer paint which comprises a component A and a component B, wherein the mass ratio of the component A to the component B is 100: (15-30), wherein the component A comprises the following raw materials in parts by weight:
aqueous resin: 50-70 parts;
matte powder: 2-7 parts;
color paste: 10-20 parts;
siloxane hammer agents: 2-5 parts;
group A co-solvents: 3-8 parts;
functional auxiliary agents: 2.7-31 parts;
group A deionized water: 5-15 parts;
wherein the particle size range of the matte powder is 3-6.5 μm, the particle size range of the color paste is 100-500 nm, and the color paste comprises the following raw materials in parts by weight:
pigment: 30-40 parts;
color paste cosolvent: 3-5 parts;
color paste defoaming agent: 0.1 to 0.5 portion;
color paste dispersing agent: 20-30 parts;
color paste deionized water: 40-50 parts;
the component B comprises the following raw materials in parts by weight:
oily polyisocyanate curing agent: 60-80 parts;
group B co-solvents: 20 to 40 portions.
As a preferred scheme, the functional auxiliary comprises the following raw material components in parts by weight:
pH adjusting solvent: 0.5 to 2.5 portions;
wetting assistant: 0.5 to 1.5 portions;
a component dispersing agent: 1-2 parts;
group A defoaming agent: 0.2 to 1 portion;
polyurethane associative thickener: 0.5 to 1.5 portions.
By adopting the scheme, the dispersion uniformity of each component in the color paste in the hammer paint is improved, and the particle size and density difference between the color paste and the matte powder is controlled, so that the motion tracks of different components and different particle size components are different, the color paste particles with smaller particle sizes can easily flow to the highest point of a paint film in a large area, and the matte powder particles with larger particle sizes can flow to the most concave position of the paint film due to difficult movement, so that the formation of 'Benard nest' is accelerated, and a vivid three-dimensional pattern feeling is formed; meanwhile, the oily polyisocyanate curing agent is adopted to shorten the surface drying time of the hammer paint and reduce the glossiness of a paint film, the drying rate is improved, silver paste or silver powder components do not need to be additionally added in the scheme, and the production cost is reduced, so that the application field of the hammer paint is widened.
Preferably, the aqueous resin is an aqueous hydroxy acrylic resin, the solid content of the aqueous hydroxy acrylic resin is 45%, and the hydroxyl value is 129mgKOH/g.
Preferably, the cosolvent in group A is one or more of diethylene glycol monoethyl ether, ethanol, isopropanol, n-amyl alcohol, propylene glycol butyl ether, dipropylene glycol methyl ether and dipropylene glycol butyl ether.
By adopting the scheme, the compatibility of each component in the component A of the hammer print agent can be improved by using diethylene glycol monoethyl ether, ethanol, isopropanol, n-amyl alcohol, propylene glycol butyl ether, dipropylene glycol methyl ether and dipropylene glycol butyl ether, the flowing of color paste particles is assisted, the formation of stereoscopic patterns is accelerated, and the stereoscopic impression of hammer prints is enhanced.
Preferably, the pH adjusting solvent is one or more of AMP-95 and DMEA.
Preferably, the matte powder is a mixture of hydrated magnesium silicate and silicon dioxide according to a mass ratio of 5: (6-10) in proportion.
By adopting the scheme, the weight ratio of the hydrated magnesium silicate to the silicon dioxide is 5: and (6) the hammer paint is mixed and added according to the proportion of (10) so that the integral matte effect of the paint film can be improved while the strong stereoscopic impression of the hammer paint film is ensured, the dosage ratio of the matte components in the hammer paint is reduced, the pigment proportion is further controlled, and the performance of the hammer paint is integrally improved.
Preferably, the cosolvent in group B is ethylene glycol butyl ether acetate.
By adopting the scheme, the ethylene glycol butyl ether acetate is used as a cosolvent of the oily polyisocyanate curing agent, so that the compatibility between the oily polyisocyanate curing agent and the B component of the hammer paint can be improved, the drying time of the hammer paint is shortened, the matte effect is improved, and the overall performance of the oily polyisocyanate curing agent is improved.
Preferably, the color paste cosolvent is one or a mixture of ethylene glycol butyl ether acetate, ethylene glycol and dipropylene glycol methyl ether.
By adopting the scheme, ethylene glycol butyl ether acetate, ethylene glycol and dipropylene glycol methyl ether are adopted as the color paste cosolvent, so that the dispersibility and compatibility of the color paste in the hammer paint A component can be improved, pigment particles in the color paste are assisted to flow in the hammer paint, and clear surface grains with strong stereoscopic impression can be formed.
As a preferred scheme, the color paste also comprises 0.1 to 0.3 weight part of bactericide.
In order to solve the above technical problems, a second embodiment of the present invention provides a method for preparing a water-based two-component matte hammer paint, comprising the following steps:
s1, adding color paste deionized water into a stirring container in advance, controlling the stirring speed to be 300r/min-500r/min, then sequentially adding a color paste cosolvent, a bactericide, a color paste dispersing agent and a color paste defoaming agent, stirring and dispersing, adding a pigment, continuously stirring for 30min-60min, then transferring to a grinding device for grinding treatment, and screening to obtain color paste;
s2, adding the water-based resin into a mixing container, sequentially adding the PH regulator, the group A cosolvent and the wetting aid, and uniformly stirring and mixing at a high speed;
s3, adding the matte powder into a mixing container, stirring at a high speed for 20-30 min, sequentially adding the defoaming agent A, the dispersing agent A and the deionized water A, and stirring at a high speed to mix uniformly;
s4, adding the color paste obtained in the step S1 into a mixing container to be prepared into a required color, sequentially adding a hammer print agent and a polyurethane associated thickener, and uniformly stirring and mixing at a high speed to obtain a component A;
and S5, adding the group B cosolvent and the oily polyisocyanate curing agent into a closed container, stirring at a high speed for dispersing for 3-5 min, and timely packaging, sealing and storing to obtain the group B.
By adopting the scheme, the prepared component A and the component B are uniformly mixed in proportion in advance when the coating is used, and the coating can be carried out, and the coating and drying can form lines with strong stereoscopic impression and clearness.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
1. because the particle size and the density of the color paste are different from those of the matte powder particles, the color paste particles with smaller particle size can easily flow to the highest point of the paint film in a large area, and the matte powder particles with larger particle size are difficult to move, so that the color paste particles flow to the most sunken position of the paint film, the formation of 'Benard nest' is accelerated, and a vivid three-dimensional pattern feeling is formed.
2. The oily polyisocyanate curing agent is adopted to shorten the drying time of the hammer paint, and simultaneously, the oily polyisocyanate curing agent can provide a matte effect and reduce the dosage proportion of the hydrated magnesium silicate, thereby controlling the pigment proportion.
3. The ethylene glycol monobutyl ether acetate is used as a cosolvent of the oily polyisocyanate curing agent, and can improve the compatibility between the oily polyisocyanate curing agent and the hammer paint B component, thereby shortening the drying time of the hammer paint and improving the matte effect.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following table 1 is a list of sources and types of raw materials used for the preparation examples and examples:
TABLE 1 sources and types of starting materials
Preparation example
Preparation examples 1 to 3
The color paste for the hammer tone agent is prepared by the following steps: adding color paste deionized water into a stirring container in advance, controlling the stirring speed as shown in table 2, then sequentially adding a color paste cosolvent, a bactericide, a color paste dispersant and a color paste defoamer, stirring and dispersing, adding pigment, continuously stirring for the stirring time as shown in table 2, then transferring to a grinding device for grinding, and screening to obtain the color paste with the particle size range of 100nm-500 nm.
TABLE 2 Components, contents and processing parameters of preparation examples 1 to 3
Examples
Examples 1 to 4
The water-based double-component matte hammer paint is prepared by the following steps:
s1, adding water-based hydroxyl acrylic resin into a mixing container, sequentially adding a pH regulator, a group A cosolvent and a wetting aid, and uniformly stirring and mixing at a high speed;
wherein, the solid content of the water-based hydroxy acrylic resin is 45 percent, the hydroxyl value is 129mgKOH/g, and the A group cosolvent can be but not limited to diethylene glycol monoethyl ether, ethanol, isopropanol, n-amyl alcohol, propylene glycol butyl ether, dipropylene glycol methyl ether and dipropylene glycol butyl ether;
s2, adding the matte powder into a mixing container, stirring at a high speed for the time shown in the table 3, sequentially adding the dispersing agent A, the defoaming agent A and the deionized water A, and stirring at a high speed to mix uniformly;
wherein, the particle size of the matte powder is controlled within the range of 3 μm-6.5 μm, in the embodiment, the particle size of the matte powder is preferably 3 μm, and the matte powder is hydrous magnesium silicate;
s3, adding the color paste obtained in the preparation example into a mixing container to be prepared into a required color, sequentially adding a siloxane hammer print agent and a polyurethane associated thickener, and uniformly stirring and mixing at a high speed to obtain a component A;
s4, adding the group B cosolvent and the oily polyisocyanate curing agent into a closed container, stirring at a high speed for dispersing for the time shown in the table 3, and timely packaging, sealing and storing to obtain a group B component;
wherein, the cosolvent of group B is ethylene glycol monobutyl ether acetate, the solid content of the oily polyisocyanate curing agent is 100 percent, and the mass fraction of isocyanate (-NCO) is 21 to 23 percent.
TABLE 3 Components and amounts and Process parameters of examples 1-4
Example 5
An aqueous two-component matte hammer paint differs from example 4 in that the hydrated magnesium silicate is replaced with silica.
Example 6
An aqueous two-component matt hammer paint which differs from example 4 in that 2.2kg of hydrated magnesium sulphate are used with a ratio by mass of hydrated magnesium silicate to silica of 5:6, the amount of the mixture was 2.2kg.
Example 7
An aqueous two-component matt hammer paint which differs from example 4 in that 2.2kg of hydrated magnesium sulphate are used with a magnesium silicate hydrate and silica in a mass ratio of 1:2, the amount of the mixture was 2.2kg.
Example 8
An aqueous two-component matte hammer paint differs from example 4 in that ethylene glycol butyl ether acetate is replaced with dipropylene glycol butyl ether.
Example 9
An aqueous two-component matte hammer paint differs from example 4 in that the polyurethane associative thickener is replaced with a sodium polyacrylate thickener.
Example 10
An aqueous two-component matte hammer paint is different from the paint in example 4 in that the aqueous hydroxy acrylic resin is aqueous polyurethane resin.
Comparative example
Comparative example 1
An aqueous two-component matte hammer paint, differing from example 4 in that the hydrated magnesium silicate was replaced with an aqueous hydroxy acrylic resin.
Comparative example 2
The difference between the water-based two-component matte hammer paint and the embodiment 4 is that color paste is replaced by commercially available color paste.
Comparative example 3
An aqueous two-component matte hammer paint differs from example 4 in that the hydrated magnesium silicate is replaced by aqueous hydroxy acrylic resin and the mill base is replaced by commercially available mill base.
Comparative example 4
A two-component matte hammer paint with water base, which is different from the paint in the embodiment 4 in that the oil polyisocyanate curing agent is replaced by the water isocyanate curing agent.
Performance test
1. And (3) viscosity testing: the paint film viscosities(s) of examples 1 to 10 and comparative examples 1 to 4 were measured at 25 ℃ using a paint-4 cup viscometer in accordance with the test method of GB/T1723-93, paint viscometry, and the results are shown in Table 4.
2. Evaluation of paint film appearance: the hammer paint obtained in examples 1 to 10 and comparative examples 1 to 4 was applied to the surface of a metal casting, after the paint was completely dried at normal temperature, the texture and the stereoscopic impression of the paint film were visually observed with naked eyes, the evaluation results are shown in table 4, and the evaluation conclusion was specifically classified into 4 dimensions:
1) The hammer marks are clear, the stereoscopic impression is strong, and the orange marks are moderate;
2) The hammer marks are clear, the stereoscopic impression is good, and the orange marks are slightly larger;
3) The hammer marks are clear, the stereoscopic impression is general, and the orange marks are compact;
4) Fuzzy hammer marks, weak stereoscopic impression and tight orange marks.
3. Gloss testing of paint films: the gloss of the paint films of examples 1 to 10 and comparative examples 1 to 4 under the geometric condition of 60 ℃ was measured according to the method of GB/T9754-2007 determination of specular gloss of paint films of metallic pigment-free colored paints, the acceptable gloss index ranged from 2 to 60, the matte level was adjusted according to the production index, and the test results are shown in Table 4.
4. Surface dry time test: the hammer paints of examples 1 to 10 and comparative examples 1 to 4 were tested for tack free time(s) at room temperature of 20 ℃ according to GB/T1728-1979 "determination of drying time of paint films, putty films", and the test results are shown in Table 4.
5. And (3) testing the actual dry time: the hammer paints of examples 1 to 10 and comparative examples 1 to 4 were tested for their actual drying time (mi n) at room temperature of 20 ℃ according to GB/T1728-1979 "determination of drying time of paint films and putty films", and the test results are shown in Table 4.
6. And (3) testing the adhesive force: the adhesion ratings of the hammer paints of examples 1 to 10 and of comparative examples 1 to 4 were determined at 25 ℃ according to GB/T9286-1998 "test for marking of paints and varnishes-paint films", with rating 0 being the best and rating 5 being the worst, the test structure being shown in Table 5.
7. And (3) testing the hardness of the paint film: the paint film hardness grades of the hammer paint obtained in examples 1-10 and comparative examples 1-4 are tested according to GB/T6739-2006 paint film hardness determination by a colored paint and varnish-pencil method at 25 ℃, and the hardness is as follows from low to high: 9B-8B-7B-6B-5B-4B-3B-2B-B-HB-F-H-2H-3H-4H-5H-6H-7H-8H-9H, the test structure is shown in Table 5.
8. And (3) flexibility testing: the hammer paint films obtained in examples 1 to 10 and comparative examples 1 to 4 were tested for flexibility (mm) at 25 ℃ according to GB/T1731-1993 paint flexibility test, the test structure being shown in Table 5.
9. And (3) testing water resistance: the water resistance of the hammer paint films obtained in examples 1 to 10 and comparative examples 1 to 4 was measured according to GB/T5209-1985 "Water immersion method for measuring Water resistance of colored and clear paints", and the test results are shown in Table 5.
10. Gasoline resistance test: the gasoline resistance of the hammer paint films obtained in examples 1 to 10 and comparative examples 1 to 4 was measured according to GB/T1734-1993 "determination of gasoline resistance of paint films" and the test structures are shown in Table 5.
TABLE 4-Performance test results (1) of examples 1 to 10 and comparative examples 1 to 4
TABLE 5 Performance test results (2) of examples 1 to 10 and comparative examples 1 to 4
By comparing the test results of example 4 and comparative examples 1 to 3 in tables 4 to 5, it can be seen that the dispersion uniformity of each component in the mill base and the distribution of the mill base in the particle size range of 100nm to 500nm are controlled by adding the hydrated magnesium silicate to the hammer paint component, the particle size of the hydrated magnesium silicate is 3 μm, so that the particle size and the density of the mill base are different from those of the hydrated magnesium silicate particles, the motion tracks of the different components and the components with different particle sizes are different, the mill base particles with smaller particle sizes can flow to the highest point of the paint film in a large area, the hydrated magnesium silicate particles with larger particle sizes can flow to the most sunken position of the paint film due to the difficulty in moving, the formation of 'Benard pits' is accelerated, and the bright contrast is formed by the bright color of the mill base and the dark color of the hydrated magnesium silicate, so that a strong three-dimensional pattern can be formed.
As can be seen by comparing the test results of example 4 and comparative example 4 in tables 4 to 5, the use of the oily polyisocyanate curing agent can shorten the tack-free time of hammer paint and reduce the gloss of paint film, and the oily polyisocyanate curing agent has better curing effect and higher drying rate than the aqueous isocyanate curing agent, and can provide matte effect and reduce the ratio of the hydrated magnesium silicate, thereby controlling the pigment ratio.
As shown by comparing the test results of examples 4 to 7 in tables 4 to 5, the weight ratio of the hydrated magnesium silicate to the silicon dioxide of the matte powder is 5: and (6-10), the stereoscopic impression of the hammer paint film can be guaranteed, the overall matte effect of the paint film can be improved, the dosage ratio of matte components in the hammer paint can be reduced, the pigment proportion can be further controlled, and the performance of the hammer paint can be integrally improved.
By comparing the test results of examples 4 and 8 in tables 4-5, it can be seen that the compatibility between the oily polyisocyanate curing agent and the hammer paint B component can be improved by using butyl glycol ether acetate as the cosolvent of the oily polyisocyanate curing agent, so that the surface drying time of the hammer paint is shortened, the drying rate is improved, the overall performance of the oily polyisocyanate curing agent is improved, and the glossiness of the hammer paint is reduced.
The above-mentioned embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, and it should be understood that the above-mentioned embodiments are only examples of the present invention and are not intended to limit the scope of the present invention. It should be understood that any modifications, equivalents, improvements and the like, which come within the spirit and principle of the invention, may occur to those skilled in the art and are intended to be included within the scope of the invention.
Claims (7)
1. The water-based two-component matte hammer paint is characterized by comprising a component A and a component B, wherein the mass ratio of the component A to the component B is 100: (15-30), wherein the component A comprises the following raw materials in parts by weight:
aqueous resin: 50-70 parts;
matte powder: 2-7 parts;
color paste: 10-20 parts;
silane-based hammer tone: 2-5 parts;
group A co-solvents: 3-8 parts;
functional auxiliary agents: 2.7-31 parts;
group A deionized water: 5-15 parts;
wherein the matte powder is hydrated magnesium sulfate and/or silicon dioxide, and the group A cosolvent is one or more of diethylene glycol monoethyl ether, ethanol, isopropanol, n-amyl alcohol, propylene glycol butyl ether, dipropylene glycol methyl ether and dipropylene glycol butyl ether; the particle size range of the matte powder is 3-6.5 mu m, the particle size range of the color paste is 100-500 nm, and the color paste comprises the following raw materials in parts by weight:
pigment: 30-40 parts;
color paste cosolvent: 3-5 parts;
color paste defoaming agent: 0.1 to 0.5 portion;
color paste dispersing agent: 20-30 parts of a solvent;
color paste deionized water: 40-50 parts; the color paste cosolvent is formed by mixing one or more of ethylene glycol butyl ether acetate, ethylene glycol and dipropylene glycol methyl ether;
the component B comprises the following raw materials in parts by weight:
oily polyisocyanate curing agent: 60-80 parts;
group B co-solvents: 20-40 parts of a B group cosolvent which is ethylene glycol butyl ether acetate.
2. The aqueous two-component matte hammer paint according to claim 1, wherein the functional auxiliary comprises the following raw material components in parts by weight:
pH adjusting solvent: 0.5 to 2.5 portions;
wetting assistant: 0.5 to 1.5 portions;
a component dispersing agent: 1-2 parts;
group A defoaming agent: 0.2 to 1 portion;
polyurethane associative thickener: 0.5 to 1.5 portions.
3. The aqueous two-component matte hammer paint according to claim 1 or 2, wherein the aqueous resin is an aqueous hydroxy acrylic resin, the solid content of the aqueous hydroxy acrylic resin is 45%, and the hydroxyl content is 129mgKOH/g.
4. The aqueous two-component matte hammer paint of claim 2, wherein the ph adjusting solvent is one or more of AMP-95, DMEA.
5. The aqueous two-component matte hammer paint according to claim 1, wherein the matte powder is a mixture of hydrated magnesium silicate and silicon dioxide in a mass ratio of 5: (6-10) in proportion.
6. The aqueous two-component matte hammer paint according to claim 1 or 2, wherein the color paste further comprises 0.1 to 0.3 parts by weight of a bactericide.
7. A method for preparing an aqueous two-component matte hammer paint, which is used for preparing the aqueous two-component matte hammer paint as claimed in any one of claims 1 to 4 and 6, and is characterized by comprising the following steps:
s1, adding color paste deionized water into a stirring container in advance, controlling the stirring speed to be 300r/min-500r/min, then sequentially adding a color paste cosolvent, a color paste dispersing agent and a color paste defoaming agent, stirring and dispersing, adding pigment, continuously stirring for 30min-60min, then transferring to a grinding device for grinding treatment, and screening to obtain color paste;
s2, adding the water-based resin into a mixing container, sequentially adding the p H regulator, the group A cosolvent and the wetting aid, and uniformly stirring and mixing at a high speed;
s3, adding the matte powder into a mixing container, stirring at a high speed for 20-30 min, sequentially adding the defoaming agent A, the dispersing agent A and the deionized water A, and stirring at a high speed to mix uniformly;
s4, adding the color paste obtained in the step S1 into a mixing container to be prepared into a required color, sequentially adding a siloxane hammer print agent and a polyurethane associated thickener, and uniformly stirring and mixing at a high speed to obtain a component A;
and S5, adding the cosolvent of the component B and the oily polyisocyanate curing agent into a closed container, stirring and dispersing at a high speed for 3-5 min, and timely packaging, sealing and storing to obtain the component B.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110682491.2A CN113462222B (en) | 2021-06-17 | 2021-06-17 | Aqueous two-component matte hammer paint and preparation method thereof |
| PCT/CN2022/073464 WO2022262280A1 (en) | 2021-06-17 | 2022-01-24 | Water-based two-component matte hammered paint, and preparation method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110682491.2A CN113462222B (en) | 2021-06-17 | 2021-06-17 | Aqueous two-component matte hammer paint and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN113462222A CN113462222A (en) | 2021-10-01 |
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| CN113462222B (en) * | 2021-06-17 | 2023-01-10 | 清远市实创涂料科技有限公司 | Aqueous two-component matte hammer paint and preparation method thereof |
| CN115466574A (en) * | 2022-09-21 | 2022-12-13 | 深圳市东方亮化学材料有限公司 | Processing method of double-component metal grinding and polishing paste |
| CN116426178B (en) * | 2023-04-04 | 2024-03-29 | 温州环诺新材料科技有限公司 | Water-based matte hammer paint and preparation method thereof |
| CN116731599A (en) * | 2023-06-15 | 2023-09-12 | 君子兰涂料（天津）有限公司 | Water-based frosted finish paint and preparation method thereof |
| CN116804129B (en) * | 2023-08-01 | 2024-03-26 | 广州翔铭环保新材料有限公司 | Water-based 2K piano black finish paint and preparation method thereof |
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| US7091278B2 (en) * | 2003-12-10 | 2006-08-15 | E. I. Dupont De Nemours And Company | Aqueous two-component coating compositions |
| JP2015108049A (en) * | 2013-12-04 | 2015-06-11 | 関西ペイント株式会社 | Coating composition capable of forming crepe pattern coating film |
| CN105713496A (en) * | 2014-12-02 | 2016-06-29 | 合众（佛山）化工有限公司 | Preparation method of aqueous two-component super wear-resistant lusterless paint |
| CN107619628A (en) * | 2017-08-09 | 2018-01-23 | 河北晨阳工贸集团有限公司 | A kind of aqueous double-component acrylic hammer paint and preparation method thereof |
| CN111019504B (en) * | 2019-12-20 | 2022-02-15 | 立邦工业涂料(上海)有限公司 | Waterborne polyurethane coating composition and application thereof |
| CN112143358A (en) * | 2020-09-24 | 2020-12-29 | 洪嵩(上海)科技有限公司 | Water-based two-component polyurethane orange-peel paint for ATM shell and preparation method thereof |
| CN113462222B (en) * | 2021-06-17 | 2023-01-10 | 清远市实创涂料科技有限公司 | Aqueous two-component matte hammer paint and preparation method thereof |
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