CN110776797A - Two-dimensional boron nitride modified emulsion paint and preparation method thereof - Google Patents
Two-dimensional boron nitride modified emulsion paint and preparation method thereof Download PDFInfo
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- CN110776797A CN110776797A CN201911112536.1A CN201911112536A CN110776797A CN 110776797 A CN110776797 A CN 110776797A CN 201911112536 A CN201911112536 A CN 201911112536A CN 110776797 A CN110776797 A CN 110776797A
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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
- C09D133/00—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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
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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
- C09D5/02—Emulsion paints including aerosols
- C09D5/024—Emulsion paints including aerosols characterised by the additives
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- 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
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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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
- 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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- 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
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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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
- C08K3/38—Boron-containing compounds
- C08K2003/382—Boron-containing compounds and nitrogen
- C08K2003/385—Binary compounds of nitrogen with boron
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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 two-dimensional boron nitride modified emulsion paint which comprises the following raw materials in parts by weight: 18-38 parts of acrylic resin emulsion, 10-30 parts of titanium dioxide, 10-40 parts of other pigments and fillers, 0.1-2 parts of wetting dispersant, 0.1-1 part of defoaming agent, 15-35 parts of deionized water, 0.5-2 parts of thickener, 0.1-0.5 part of rheological additive, 0-0.3 part of pH regulator, 0-0.5 part of preservative and 0.0001-10 parts of two-dimensional boron nitride; wherein the two-dimensional boron nitride has a sheet diameter of 0.05-100 μm and a thickness of 1-50 layers. According to the invention, the two-dimensional boron nitride is used for modifying the traditional emulsion paint, and the coating has better formaldehyde-resistant and antibacterial effects and the characteristics of scrubbing resistance, good hand feeling and nuclear radiation resistance through the synergistic effect between the two-dimensional boron nitride and the photocatalytic particles.
Description
Technical Field
The invention relates to the technical field of paint preparation. More particularly, relates to a two-dimensional boron nitride modified emulsion paint and a preparation method thereof.
Background
The latex paint is a paint based on acrylic resin emulsion, and is widely applied to the field of interior decoration because of the advantages of easy brush coating, high drying speed, water resistance of paint film, scrubbing resistance and the like.
In recent years, graphene has attracted much attention as a new material, and many people in the industry add graphene to traditional latex paints, thereby imparting various new functions and properties to the latex paints. Chinese patent 'a multifunctional latex paint and a preparation method and application thereof' (publication number is CN107793816A) discloses a graphene modified latex paint. The graphene coating has multiple new functions of far infrared, antibiosis, static resistance and the like, and the graphene obviously improves the aging resistance and the caking property of the coating. Chinese patent "a preparation method of graphene additive for emulsion paint" (publication No. CN108165064A) also discloses a graphene modified emulsion paint. Due to the addition of the graphene, the formaldehyde purification effect of the coating is endowed. However, graphene itself is black, and graphene oxide, which is a substitute similar to graphene oxide, is dark brown. After the graphene or the graphene oxide is added into the white or light-colored interior wall latex paint, the color of the interior wall latex paint is obviously deepened, and the interior decoration effect is often difficult to satisfy residents.
Accordingly, it would be desirable to provide latex paints that exhibit scrub resistance, antimicrobial, antistatic, and thermal conductivity properties while maintaining a white color.
Disclosure of Invention
One objective of the present invention is to provide a two-dimensional boron nitride modified emulsion paint, in which the raw material of the emulsion paint includes two-dimensional boron nitride called "white graphene", so as to impart good thermal conductivity, formaldehyde resistance and antibacterial effect to the emulsion paint, and improve the hand feeling and scrub resistance of the emulsion paint.
The invention also aims to provide a preparation method of the two-dimensional boron nitride modified emulsion paint.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the invention provides a two-dimensional boron nitride modified emulsion paint, which comprises the following raw materials in parts by weight:
18-38 parts of acrylic resin emulsion, 10-30 parts of titanium dioxide, 10-40 parts of other pigments and fillers, 0.1-2 parts of wetting dispersant, 0.1-1 part of defoaming agent, 15-35 parts of deionized water, 0.5-2 parts of thickener, 0.1-0.5 part of rheological additive, 0-0.3 part of pH regulator, 0-0.5 part of preservative and 0.0001-10 parts of two-dimensional boron nitride;
wherein the two-dimensional boron nitride has a sheet diameter of 0.05-100 μm and a thickness of 1-50 layers.
Optionally, the two-dimensional boron nitride modified emulsion paint comprises the following raw materials in parts by weight:
22-28 parts of acrylic resin emulsion, 10-21 parts of titanium dioxide, 21.5-36.5 parts of other pigments and fillers, 0.4-0.6 part of wetting dispersant, 0.5-0.7 part of defoaming agent, 24.9-26.9 parts of deionized water, 1-1.4 parts of thickener, 0.2-0.4 part of rheological additive, 0.1-0.2 part of pH regulator, 0.1-0.4 part of preservative and 0.1-6 parts of two-dimensional boron nitride.
Optionally, the other raw materials comprise one or more of calcium carbonate, kaolin, ceramic micropowder and diatomite.
Optionally, the wetting and dispersing agent is selected from the Orotan series and the Dispex series.
Optionally, the antifoaming agent is selected from the Foamstar and Foamaster series.
Optionally, the thickener is selected from Natrosol and Rheovis series.
Optionally, the rheological aid is selected from the Attagel series.
Optionally, the pH adjusting agent is selected from the Silres series.
Optionally, the preservative is selected from the activide series.
In a second aspect, the invention provides a preparation method of a two-dimensional boron nitride modified emulsion paint, which comprises the following steps:
mixing 12-33 parts of deionized water, 0.2-1.0 part of thickening agent, 0.1-0.5 part of rheological additive, 10-30 parts of titanium dioxide, 0.1-2 parts of wetting dispersant, 0.1-0.4 part of defoaming agent, 0-0.3 part of pH regulator and 0.0001-10 parts of two-dimensional boron nitride, uniformly stirring, and dispersing to a proper fineness; and continuously adding 18-38 parts of acrylic resin emulsion, 0.4-0.9 part of defoaming agent, 0.3-1.8 parts of thickening agent, 2-3 parts of deionized water and 0-0.5 part of preservative, uniformly mixing, filtering and discharging to obtain the acrylic resin emulsion.
The invention has the following beneficial effects:
according to the invention, the two-dimensional boron nitride modifies the traditional emulsion paint, and the coating has better formaldehyde-resistant and antibacterial effects through the synergistic effect between the two-dimensional boron nitride and the photocatalytic particles; excellence in two-dimensional boron nitrideThe mechanical properties of (A) can endow the paint film with better scrub resistance. Meanwhile, the heat conductivity of the paint film can be improved by the two-dimensional boron nitride, so that the paint film is cool in touch and the hand feeling of the paint film is improved. The two-dimensional boron nitride contains a large amount of boron nitride
10The isotope B can effectively capture neutrons through nuclear reaction, so that the emulsion paint has a certain nuclear radiation prevention function.
Detailed Description
In order to make the technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be further described in detail with reference to specific embodiments. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
In the case where the objects of the present invention are illustrated and explained by the following examples, the components of the composition are all explained on the general standard of parts by weight. In the present invention, the term "part" is used in the same sense as part by weight for the sake of brevity without specific mention.
In the prior art, graphene endows traditional emulsion paint with various excellent performances including antibiosis, static prevention, aging resistance, high adhesion and heat conductivity, however, the graphene is black, the graphene oxide which is a substitute of the graphene is dark brown, and the color of the paint surface is obviously deepened when the graphene oxide is added into white or light-colored emulsion paint, so that the coating effect is difficult to satisfy.
Aiming at the problems, the invention provides a two-dimensional boron nitride modified emulsion paint which comprises the following raw materials in parts by weight:
18-38 parts of acrylic resin emulsion, 10-30 parts of titanium dioxide, 10-40 parts of other pigments and fillers, 0.1-2 parts of wetting dispersant, 0.1-1 part of defoaming agent, 15-35 parts of deionized water, 0.5-2 parts of thickener, 0.1-0.5 part of rheological additive, 0-0.3 part of pH regulator, 0-0.5 part of preservative and 0.0001-10 parts of two-dimensional boron nitride;
wherein the two-dimensional boron nitride has a sheet diameter of 0.05-100 μm and a thickness of 1-50 layers.
The raw material of the emulsion paint provided by the invention comprises two-dimensional boron nitride. The two-dimensional boron nitride material extends in a sheet shape, and the dimension of the two-dimensional boron nitride material in the radial extension direction is far larger than the dimension of the two-dimensional boron nitride material in the thickness direction. Preferably, the two-dimensional boron nitride has a sheet diameter of 0.05 to 100 μm and a thickness of 1 to 50 layers. The two-dimensional boron nitride with the size has the excellent characteristics of the boron nitride, such as good thermal conductivity, white color and the like, and also has the unique auxiliary photocatalytic reaction characteristic of a two-dimensional conjugated structure material, the sterilization effect of a sharp edge, ultrahigh mechanical strength and the like. .
The two-dimensional boron nitride is white in appearance, has barrier properties, high strength and high thermal conductivity of a two-dimensional material, and can generate radicals by a synergistic effect with a photocatalyst, and is called "white graphene". According to the invention, the two-dimensional boron nitride is selected to modify the traditional emulsion paint, and the coating has better formaldehyde-resistant and antibacterial effects through the synergistic effect between the two-dimensional boron nitride and the photocatalytic particles. In addition, the excellent mechanical properties of the two-dimensional boron nitride can give the paint film better scrub resistance. And the two-dimensional boron nitride can also improve the heat conductivity of the paint film, so that the paint film is cool in touch and the hand feeling of the paint film is improved. The two-dimensional boron nitride contains a large amount of boron nitride
10The isotope B can effectively capture neutrons through nuclear reaction, so that the emulsion paint has a certain nuclear radiation prevention function.
In a preferred embodiment, the raw materials of the two-dimensional boron nitride modified latex paint comprise the following components in parts by weight:
22-28 parts of acrylic resin emulsion, 10-21 parts of titanium dioxide, 21.5-36.5 parts of other pigments and fillers, 0.4-0.6 part of wetting dispersant, 0.5-0.7 part of defoaming agent, 24.9-26.9 parts of deionized water, 1-1.4 parts of thickener, 0.2-0.4 part of rheological additive, 0.1-0.2 part of pH regulator, 0.1-0.4 part of preservative and 0.1-6 parts of two-dimensional boron nitride.
The pigment and filler are added to increase the volume of the coating, play a role in filling and reduce the cost of the coating. One possible embodiment is that the pigment filler is generally white or colorless, and the filler in the present invention includes but is not limited to one or more of calcium carbonate, kaolin, ceramic micropowder, and diatomite.
One possible embodiment is that the wetting and dispersing agents include, but are not limited to, the Orotan series and the Dispex series, such as Orotan1288 and Dispex ultra FA 4480. The wetting dispersant has good affinity with the pigment and filler, can quickly wet the surface of the pigment and filler and generate stronger adsorption effect, and simultaneously generates good compatibility with the acrylic acid main body resin, thereby reducing the possibility of re-flocculation or aggregation of the latex paint system, ensuring that the latex paint system does not delaminate in a long time, and having stable viscosity and dispersibility, and ensuring the hiding power and stability of the latex paint in the using process.
To reduce the surface tension of latex paints, prevent foam formation, and enhance the coating of latex paints, one skilled in the art can select defoamers as desired, including but not limited to the Foamstar and Foamster series, such as Foamstar ST2410 and Foamster MO NXZ.
One possible embodiment is that the thickener is selected from the Natrosol and Rheovis series, such as Natrosol250HBR, Natrosol HE10K and Rheovis PE 1331. The thickener can make the finally obtained latex paint have specific viscosity.
During the storage period of the emulsion paint, stable dispersity is kept, solid components such as pigments and fillers and liquid components can be uniformly mixed for a long time, and deposition is not generated, so that the emulsion paint is crucial; in the process of coating the latex paint, the latex paint flows downwards due to the action of gravity, and if the sag resistance of the latex paint is poor, the phenomenon of uneven sagging on the surface of a paint film is generated, so that the appearance is poor. In order to improve the performance of the latex paint, prevent the occurrence of solid deposition and sagging phenomena, and improve the painting effect, one skilled in the art can select a suitable rheological aid according to the needs, such as Attagel40 of the Attagel series, and the invention is not limited herein.
One possible embodiment is that the pH adjusting agent in the two-dimensional boron nitride modified latex paint raw material may be SilresBS168 of the Silres series and the preservative may be an Acticide series, such as Acticide MV and Acticide MBS. The pH regulator can prevent the emulsion paint from forming film prematurely in storage, transportation and use and maintain the stability of the system. The preservative can improve the antibacterial performance of the emulsion paint and prevent the performance deterioration of the emulsion paint caused by the increment of microorganisms.
One possible implementation manner of the preparation method of the two-dimensional boron nitride modified emulsion paint provided by the invention is that the preparation process comprises the following steps:
mixing 12-33 parts of deionized water, 0.2-1.0 part of thickening agent, 0.1-0.5 part of rheological additive, 10-30 parts of titanium dioxide, 0.1-2 parts of wetting dispersant, 0.1-0.4 part of defoaming agent, 0-0.3 part of pH regulator and 0.0001-10 parts of two-dimensional boron nitride, uniformly stirring, and dispersing to a proper fineness; and continuously adding 18-38 parts of acrylic resin emulsion, 0.4-0.9 part of defoaming agent, 0.3-1.8 parts of thickening agent, 2-3 parts of deionized water and 0-0.5 part of preservative, uniformly mixing, filtering and discharging to obtain the acrylic resin emulsion.
When in use, a proper amount of deionized water is added into the latex paint to adjust the viscosity to be proper, and then the latex paint is brushed or a sample plate is rolled and coated. The two-dimensional boron nitride modified emulsion paint has the advantages of strong antibacterial property, good formaldehyde purification effect, scrubbing resistance and good hand feeling while keeping high whiteness, and has wide application potential in the field of indoor coating.
The technical solution protected by the present invention will be described with reference to some specific embodiments.
Examples
The preparation process of the two-dimensional boron nitride modified latex paint in the embodiment 1-2 is as follows:
putting a first part of deionized water, a first part of thickening agent, a rheological additive, titanium dioxide, other pigments and fillers, a wetting dispersant, a first part of defoamer, a pH regulator and two-dimensional boron nitride into a container in proportion, mixing, uniformly stirring, dispersing the mixture at a high speed, and reducing the rotating speed after the fineness reaches a specified value;
and continuously adding the acrylic resin emulsion, the second part of defoaming agent, the second part of thickening agent, the second part of deionized water and the preservative, uniformly mixing, filtering and discharging to obtain the finished product of the emulsion paint.
Example 1
The raw material compositions of formulations 1 to 3 in example 1 are shown in table 1. Wherein the two-dimensional boron nitride has a sheet diameter of about 50 μm and a thickness of 10 layers.
Table 1 raw material composition of formulations 1 to 3 in example 1
Example 2
The raw material compositions of formulations 4 and 5 in example 2 are shown in table 2. Wherein the sheet diameter of the two-dimensional boron nitride in the formula 4 is about 50 μm, and the thickness is 3 layers; the sheet diameter of the two-dimensional boron nitride in the formula 5 is about 50 μm, and the thickness is 50 layers.
Table 2 raw material compositions of formulations 4 and 5 in example 2
Comparative example 1
The preparation process of the two-dimensional boron nitride modified emulsion paint in the comparative example 1 is as follows:
putting a first part of deionized water, a first part of thickening agent, a rheological additive, titanium dioxide, other pigments and fillers, a wetting dispersant, a first part of defoamer and a pH regulator into a container in proportion, mixing, uniformly stirring, dispersing the mixture at a high speed until the fineness reaches a specified value, and reducing the rotating speed;
and continuously adding the acrylic resin emulsion, the second part of defoaming agent, the second part of thickening agent, the second part of deionized water and the preservative, uniformly mixing, filtering and discharging to obtain the finished product of the emulsion paint.
The composition of the raw material of formulation 6 in comparative example 1 is shown in table 3.
Table 3 raw material composition of formulation 6 in comparative example 1
Test example
The latex paints of examples 1-2 and comparative example 1 were mixed with an appropriate amount of deionized water, and the mixture was brushed or rolled to a suitable viscosity. The prepared panels were tested for the following performance indicators, see table 4. The heat-conducting property is that the coating is coated on a galvanized plate, the galvanized plate is placed on a magnetic 100 ℃ hot table, and the stable temperature of the surface of the coating is measured by an infrared temperature measuring gun. The higher the stabilization temperature, the better the thermal conductivity.
Table 4 performance testing of different formulations
The results in table 3 show that the addition of the two-dimensional boron nitride to the latex paints of formulas 1 to 5 in examples 1 to 2 can significantly improve the thermal conductivity and antibacterial property of the coatings, the improvement effect increases with the increase of the addition of the two-dimensional boron nitride, and the two-dimensional boron nitride has improvement effects on different latex paint formulas. Meanwhile, the results of the formulas 4 and 5 in the example 2 also show that the two-dimensional boron nitride with different sizes and thicknesses has a remarkable improvement effect on the emulsion paint.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.
Claims (10)
1. The two-dimensional boron nitride modified emulsion paint is characterized by comprising the following raw materials in parts by weight:
18-38 parts of acrylic resin emulsion, 10-30 parts of titanium dioxide, 10-40 parts of other pigments and fillers, 0.1-2 parts of wetting dispersant, 0.1-1 part of defoaming agent, 15-35 parts of deionized water, 0.5-2 parts of thickener, 0.1-0.5 part of rheological additive, 0-0.3 part of pH regulator, 0-0.5 part of preservative and 0.0001-10 parts of two-dimensional boron nitride;
wherein the two-dimensional boron nitride has a sheet diameter of 0.05-100 μm and a thickness of 1-50 layers.
2. The two-dimensional boron nitride modified latex paint of claim 1, wherein the raw materials comprise, in parts by weight:
22-28 parts of acrylic resin emulsion, 10-21 parts of titanium dioxide, 21.5-36.5 parts of other pigments and fillers, 0.4-0.6 part of wetting dispersant, 0.5-0.7 part of defoaming agent, 24.9-26.9 parts of deionized water, 1-1.4 parts of thickener, 0.2-0.4 part of rheological additive, 0.1-0.2 part of pH regulator, 0.1-0.4 part of preservative and 0.1-6 parts of two-dimensional boron nitride.
3. The two-dimensional boron nitride modified latex paint of claim 1, wherein said other pigments and fillers comprise one or more of calcium carbonate, kaolin, ceramic micropowder, and diatomaceous earth.
4. The two-dimensional boron nitride modified latex paint of claim 1 wherein said wetting dispersant is selected from the Orotan series and the Dispex series.
5. The two-dimensional boron nitride modified latex paint of claim 1 wherein said defoamer is selected from the Foamstar and Foamaster series.
6. The two-dimensional boron nitride modified latex paint of claim 1 wherein said thickener is selected from the Natrosol and Rheovis series.
7. The two-dimensional boron nitride modified latex paint of claim 1 wherein said rheological aid is selected from the Attagel series.
8. The two-dimensional boron nitride modified latex paint of claim 1 wherein said pH adjusting agent is selected from the Silres series.
9. The two-dimensional boron nitride modified latex paint of claim 1 wherein said preservative is selected from the Acticide series.
10. A method of preparing the two-dimensional boron nitride modified latex paint of claim 1, comprising the steps of:
mixing 12-33 parts of deionized water, 0.2-1.0 part of thickening agent, 0.1-0.5 part of rheological additive, 10-30 parts of titanium dioxide, 0.1-2 parts of wetting dispersant, 0.1-0.4 part of defoaming agent, 0-0.3 part of pH regulator and 0.0001-10 parts of two-dimensional boron nitride, uniformly stirring, and dispersing to a proper fineness; and continuously adding 18-38 parts of acrylic resin emulsion, 0.4-0.9 part of defoaming agent, 0.3-1.8 parts of thickening agent, 2-3 parts of deionized water and 0-0.5 part of preservative, uniformly mixing, filtering and discharging to obtain the acrylic resin emulsion.
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