阅读说明：本技术 一种水性环氧地坪漆及其制备方法 (Water-based epoxy floor paint and preparation method thereof ) 是由 蒋峰 孙祥 陈铭铸 杨颖� 俞孝伟 宋桂成 侯晶晶 于 2020-05-28 设计创作，主要内容包括：本发明提供了一种水性环氧地坪漆及其制备方法,属于环氧树脂涂料技术领域。本发明提供的水性环氧地坪漆包括独立分装的A组分和B组分,所述A组分和B组分的质量比为(80～100)：(44.8～123)；其中,所述A组分为水性环氧乳液；按质量份数计,所述B组分包括：水性环氧固化剂15～30份,水20～40份,颜料3～15份,填料5～20份,流平剂0.1～1份,消泡剂0.1～1份,分散剂0.1～1份,增韧剂0.5～5份,流变助剂0.5～5份,固化促进剂0.5～5份。本发明提供的水性环氧地坪漆中,各组分在特定配比条件下共同作用,最终得到环境友好、硬度高、耐化学腐蚀性强、粘结强度高且施工性好的水性环氧地坪漆。(The invention provides a water-based epoxy floor paint and a preparation method thereof, belonging to the technical field of epoxy resin coatings. The water-based epoxy floor paint provided by the invention comprises a component A and a component B which are independently packaged, wherein the mass ratio of the component A to the component B is (80-100): (44.8 to 123); wherein the component A is a water-based epoxy emulsion; the component B comprises the following components in parts by mass: 15-30 parts of water-based epoxy curing agent, 20-40 parts of water, 3-15 parts of pigment, 5-20 parts of filler, 0.1-1 part of flatting agent, 0.1-1 part of defoaming agent, 0.1-1 part of dispersing agent, 0.5-5 parts of toughening agent, 0.5-5 parts of rheological additive and 0.5-5 parts of curing accelerator. In the water-based epoxy floor paint provided by the invention, the components act together under the condition of a specific proportion, and finally the water-based epoxy floor paint which is environment-friendly, high in hardness, strong in chemical corrosion resistance, high in bonding strength and good in constructability is obtained.)

1. The water-based epoxy floor paint is characterized by comprising an A component and a B component which are independently subpackaged, wherein the mass ratio of the A component to the B component is (80-100): (44.8 to 123);

wherein the component A is a water-based epoxy emulsion;

the component B comprises the following components in parts by mass: 15-30 parts of water-based epoxy curing agent, 20-40 parts of water, 3-15 parts of pigment, 5-20 parts of filler, 0.1-1 part of flatting agent, 0.1-1 part of defoaming agent, 0.1-1 part of dispersing agent, 0.5-5 parts of toughening agent, 0.5-5 parts of rheological additive and 0.5-5 parts of curing accelerator.

2. The water-based epoxy floor paint of claim 1, wherein the water-based epoxy emulsion comprises one or more of acrylic acid modified water-based epoxy emulsion, polyethylene glycol modified water-based epoxy emulsion, polypropylene glycol modified water-based epoxy emulsion and polyether amine modified water-based epoxy emulsion.

3. The water-based epoxy floor paint according to claim 2, wherein the number average molecular weight of the polyethylene glycol in the polyethylene glycol modified water-based epoxy emulsion and the number average molecular weight of the polypropylene glycol in the polypropylene glycol modified water-based epoxy emulsion are respectively 2000-6000; the number average molecular weight of the polyether amine in the polyether amine modified waterborne epoxy emulsion is 200-400.

4. The water-based epoxy floor paint according to claim 1, wherein the water-based epoxy curing agent comprises one or more of modified amine water-based epoxy curing agent, water-based polyamide curing agent, isophorone diamine and cyclohexane diamine.

5. The aqueous epoxy floor paint of claim 1, wherein the water is deionized water.

6. The aqueous epoxy floor paint of claim 1, wherein the pigment comprises unsaturated polyester color paste and/or aqueous phthalocyanine paste.

7. The water-based epoxy floor paint of claim 6, wherein the water-based phthalocyanine blue paste comprises one or more of water-based phthalocyanine blue paste, water-based phthalocyanine green paste and water-based phthalocyanine yellow paste.

8. The water-based epoxy floor paint of claim 1, wherein the filler comprises one or more of titanium dioxide, barium sulfate, talcum powder, mica, quartz powder and alumina.

9. The water-based epoxy floor paint of claim 8, wherein the particle size of the titanium dioxide, barium sulfate, talcum powder, mica and quartz powder is independently less than or equal to 20 μm; the alumina is nano-grade alumina.

10. The aqueous epoxy floor paint of claim 1, wherein the leveling agent comprises a modified silicone-type leveling agent and/or an acrylic copolymer-type leveling agent.

11. The water-based epoxy floor paint of claim 10, wherein the modified silicone type leveling agent comprises one or more of a BYK-333 leveling agent, a Modaflow9200 leveling agent, and a BYK-302 leveling agent; the acrylic copolymer type leveling agent comprises one or more of a Modaflow Epsilon leveling agent, a KMT-5544 leveling agent and a BYK-381 leveling agent.

12. The waterborne epoxy floor paint of claim 1, wherein the defoamer comprises one or more of BYK-012 defoamer, BYK-014 defoamer, TEGO2290 defoamer and DF-2307 defoamer.

13. The aqueous epoxy floor paint of claim 1, wherein the dispersant is a non-ionic wetting dispersant.

14. The aqueous epoxy floor paint of claim 13, wherein the non-ionic wetting dispersant comprises one or more of PE-100 wetting dispersant, DISPERBYK-191 wetting dispersant, TEGOPREN5840 wetting dispersant, DISPERBYK-2012 wetting dispersant and XP30 wetting dispersant.

15. The aqueous epoxy floor paint of claim 1, wherein the toughening agent is a shell-core toughening agent.

16. The waterborne epoxy floor paint of claim 15, wherein the shell-core toughening agent comprises one or more of an E920 shell-core toughening agent, an FM-40 shell-core toughening agent, and an MBS shell-core toughening agent.

17. The water-based epoxy floor paint as claimed in claim 1, wherein the rheological additive comprises one or more of BYK-410 rheological additive, BYK-430 rheological additive and BYK-R605 rheological additive.

18. The waterborne epoxy floor paint of claim 1, wherein the curing accelerator is one or more of 2-ethyl-4-methylimidazole, 2-methylimidazole, phenylimidazole and ferric acetylacetonate.

19. The preparation method of the water-based epoxy floor paint of any one of claims 1 to 18, characterized by comprising the following steps:

packaging the water-based epoxy emulsion to obtain a component A of the water-based epoxy floor paint;

mixing the water-based epoxy curing agent, water, pigment, filler, flatting agent, defoaming agent, dispersing agent, toughening agent, rheological additive and curing accelerator, filtering and packaging to obtain the component B of the water-based epoxy floor paint.

20. The method according to claim 19, wherein the mixing is performed at 25 to 45 ℃ under stirring.

21. The method according to claim 19 or 20, wherein the mixing is in particular: carrying out first mixing on a water-based epoxy curing agent and water to obtain a first mixture;

carrying out second mixing on the first mixture, the filler and the pigment to obtain a second mixture;

and thirdly mixing the second mixture, the flatting agent, the defoaming agent, the dispersing agent, the toughening agent, the rheological additive and the curing accelerator.

22. The preparation method according to claim 21, wherein the stirring speed of the first mixing is 400 to 600r/min, and the mixing time is 5 to 10 min;

the stirring speed of the second mixing is 600-900 r/min, and the mixing time is 15-20 min;

the stirring speed of the third mixing is 1000-1200 r/min, and the mixing time is 10-20 min.

23. The method according to claim 19, 20 or 22, wherein the mesh size of the filter screen is 120 to 200 mesh.

Technical Field

The invention relates to the technical field of epoxy resin coatings, in particular to a water-based epoxy floor paint and a preparation method thereof.

Background

The epoxy resin paint has the characteristics of good adhesion to concrete, low volume shrinkage, good water resistance, oil resistance, chemical corrosion resistance, high hardness, high wear resistance, excellent cohesiveness and the like, is attractive and elegant in color, stain-resistant, convenient to maintain and superior in overall comprehensive performance, is widely applied to modern buildings such as factories, malls, garages, home furnishings and the like, and has an important position in the terrace industry.

The epoxy floor paint comprises solvent type epoxy floor paint and water-based epoxy floor paint. The traditional solvent type epoxy floor paint contains a large amount of volatile organic solvents, and can cause certain harm to human health and environment; in addition, when applied to a base surface having a high moisture content, the coating film has poor air permeability, and thus is likely to cause problems such as bubbling and peeling. With the development of water-based coating technology and the improvement of environmental awareness of people, the water-based epoxy floor paint has become a necessary trend to replace solvent-based epoxy floor paint. The water-based epoxy floor paint not only has a plurality of excellent performances of solvent type epoxy floor paint, but also has the following advantages: water is used as a dispersion medium, so that the content of Volatile Organic Compounds (VOC) in the system is low, and the environmental pollution is low; the cured coating has a microporous structure, allows water vapor to permeate but does not allow a liquid medium to pass through, and releases the pressure of the water vapor in the base material, so that the problems of bubbling, falling and the like of the coating are avoided, the coating can be used in a humid environment, the requirement on the water content of the base material is not strict, and the construction is convenient.

Chinese patent 201711173966.5 discloses a high-performance two-component water-based epoxy floor paint and a preparation method thereof, wherein the paint comprises A, B two components, wherein the component A comprises the following raw materials in percentage by weight: 30-40% of curing agent, 0.4-0.6% of defoaming agent, 0.2-4% of auxiliary agent, 1-2% of wax powder, 4-40% of filler, 1-3% of color paste and the balance of water; the component B is liquid epoxy resin; the floor paint has the advantages of high surface drying speed, acid and alkali resistance and good water resistance, but the floor paint has the problems of poor wear resistance and thermal stability. The Chinese patent invention 201510894217.6 discloses a water-based epoxy floor coating and a preparation method thereof, the floor coating comprises A, B components, wherein the A component comprises 80-90 parts by mass of low-molecular liquid epoxy resin, 2-4 parts by mass of modified compatibilization resin and 5-15 parts by mass of active diluent, and the B component comprises 20-30 parts by mass of water, 40-45 parts by mass of water-based amine curing agent, 3-5 parts by mass of functional resin, 3-18 parts by mass of pigment, 10-25 parts by mass of filler, 0.1-0.5 part by mass of defoaming agent and 0.1-0.3 part by mass of wetting and leveling agent; the terrace coating has good hardness and wear resistance, but has the problems of poor weather resistance and short working life of a paint film, poor compatibility between liquid epoxy resin and a water-based amine curing agent and uneven mixing in the using process.

Disclosure of Invention

The invention aims to provide the water-based epoxy floor paint and the preparation method thereof, and the water-based epoxy floor paint provided by the invention has the advantages of good humidity and heat resistance, longer service life, convenience in construction, good wear resistance and suitability for outdoor floors; and the coating has good acid and alkali resistance, chemical resistance and oil resistance, can adapt to various environments, has excellent comprehensive performance, and is an outdoor terrace coating which can be popularized and used on a large scale.

In order to achieve the above object, the present invention provides the following technical solutions:

the invention provides a water-based epoxy floor paint which comprises a component A and a component B which are independently packaged, wherein the mass ratio of the component A to the component B is (80-100): (44.8 to 123);

wherein the component A is a water-based epoxy emulsion;

the component B comprises the following components in parts by mass: 15-30 parts of water-based epoxy curing agent, 20-40 parts of water, 3-15 parts of pigment, 5-20 parts of filler, 0.1-1 part of flatting agent, 0.1-1 part of defoaming agent, 0.1-1 part of dispersing agent, 0.5-5 parts of toughening agent, 0.5-5 parts of rheological additive and 0.5-5 parts of curing accelerator.

Preferably, the aqueous epoxy emulsion comprises one or more of acrylic acid modified aqueous epoxy emulsion, polyethylene glycol modified aqueous epoxy emulsion, polypropylene glycol modified aqueous epoxy emulsion and polyether amine modified aqueous epoxy emulsion.

Preferably, the aqueous epoxy curing agent comprises one or more of modified amine aqueous epoxy curing agent, aqueous polyamide curing agent, isophorone diamine and cyclohexane diamine.

Preferably, the filler comprises one or more of titanium dioxide, barium sulfate, talcum powder, mica, quartz powder and alumina.

Preferably, the leveling agent includes a modified silicone-type leveling agent and/or an acrylic copolymer-type leveling agent.

Preferably, the dispersant is a non-ionic wetting dispersant.

Preferably, the toughening agent is a shell-core toughening agent.

Preferably, the rheological additive comprises one or more of BYK-410 rheological additive, BYK-430 rheological additive and BYK-R605 rheological additive.

Preferably, the curing accelerator is one or more of 2-ethyl-4-methylimidazole, 2-methylimidazole, phenylimidazole and ferric acetylacetonate.

The invention provides a preparation method of the water-based epoxy floor paint in the technical scheme, which comprises the following steps:

packaging the water-based epoxy emulsion to obtain a component A of the water-based epoxy floor paint;

mixing the water-based epoxy curing agent, water, pigment, filler, flatting agent, defoaming agent, dispersing agent, toughening agent, rheological additive and curing accelerator, filtering and packaging to obtain the component B of the water-based epoxy floor paint.

The invention provides a water-based epoxy floor paint which comprises a component A and a component B which are independently packaged, wherein the mass ratio of the component A to the component B is (80-100): (44.8 to 123); wherein the component A is a water-based epoxy emulsion; the component B comprises the following components in parts by mass: 15-30 parts of water-based epoxy curing agent, 20-40 parts of water, 3-15 parts of pigment, 5-20 parts of filler, 0.1-1 part of flatting agent, 0.1-1 part of defoaming agent, 0.1-1 part of dispersing agent, 0.5-5 parts of toughening agent, 0.5-5 parts of rheological additive and 0.5-5 parts of curing accelerator. According to the water-based epoxy floor paint provided by the invention, the water-based epoxy emulsion is used as the component A, and is matched with reagents in the component B, so that the components have good compatibility, and the water-based epoxy floor paint which is environment-friendly, high in hardness, strong in chemical corrosion resistance, high in bonding strength and good in constructability is finally obtained under the combined action of the components under the specific proportioning condition.

Detailed Description

The invention provides a water-based epoxy floor paint which comprises a component A and a component B which are independently packaged, wherein the mass ratio of the component A to the component B is (80-100): (44.8 to 123);

wherein the component A is a water-based epoxy emulsion;

the component B comprises the following components in parts by mass: 15-30 parts of water-based epoxy curing agent, 20-40 parts of water, 3-15 parts of pigment, 5-20 parts of filler, 0.1-1 part of flatting agent, 0.1-1 part of defoaming agent, 0.1-1 part of dispersing agent, 0.5-5 parts of toughening agent, 0.5-5 parts of rheological additive and 0.5-5 parts of curing accelerator.

In the invention, the mass ratio of the component A to the component B in the water-based epoxy floor paint is preferably (80-100): (44.8-123), more preferably (80-100): (65-110), more preferably (80-100): (75-105), more preferably (85-95): (80-100).

In the present invention, the starting materials or reagents used are commercially available products well known to those skilled in the art, unless otherwise specified.

In the invention, the component A is a water-based epoxy emulsion, the water-based epoxy emulsion preferably comprises one or more of acrylic acid modified water-based epoxy emulsion, polyethylene glycol modified water-based epoxy emulsion, polypropylene glycol modified water-based epoxy emulsion and polyether amine modified water-based epoxy emulsion, and when a plurality of components are mixed, the specific types or the proportion of the components are not specially limited; specifically, the component A can be acrylic acid modified water-based epoxy emulsion, polyethylene glycol modified water-based epoxy emulsion, polypropylene glycol modified water-based epoxy emulsion or polyether amine modified water-based epoxy emulsion, or a mixture of polyether amine modified water-based epoxy emulsion and polyethylene glycol modified water-based epoxy emulsion (the mass ratio of the polyether amine modified water-based epoxy emulsion to the polyethylene glycol modified water-based epoxy emulsion is preferably 1: 3-4), or a mixture of polypropylene glycol modified water-based epoxy emulsion and acrylic acid modified water-based epoxy emulsion (the mass ratio of the polypropylene glycol modified water-based epoxy emulsion to the acrylic acid modified water-based epoxy emulsion is preferably 7.5-8.5: 1).

In the invention, the number average molecular weight of polyethylene glycol in the polyethylene glycol modified waterborne epoxy emulsion is preferably 2000-6000, and specifically can be 2000, 4000 or 6000; the number average molecular weight of the polypropylene glycol in the polypropylene glycol modified waterborne epoxy emulsion is preferably 2000-6000, and specifically can be 2000, 4000 or 6000; the number average molecular weight of the polyether amine in the polyether amine modified waterborne epoxy emulsion is preferably 200-400, and more preferably 230-400.

In the invention, the water-based epoxy emulsion is used as a main component of the water-based epoxy floor paint, and the water-based epoxy floor paint is ensured to be smoothly cured under the action of the water-based epoxy curing agent and the curing accelerator, so that the paint film has better performances such as thermal stability, wear resistance, weather resistance and the like.

In the invention, the component B comprises 15-30 parts by mass of a water-based epoxy curing agent, preferably 20-25 parts by mass. In the invention, the waterborne epoxy curing agent preferably comprises one or more of modified amine waterborne epoxy curing agent, waterborne polyamide curing agent, isophorone diamine and cyclohexane diamine, and when a plurality of components are mixed, the specific type or proportion of each component is not specially limited; specifically, the aqueous epoxy curing agent can be a modified amine aqueous epoxy curing agent, an aqueous polyamide curing agent, isophorone diamine or cyclohexane diamine, or a mixture of cyclohexane diamine and the modified amine aqueous epoxy curing agent (the mass ratio of the cyclohexane diamine to the modified amine aqueous epoxy curing agent is preferably 4-6: 1), or a mixture of an aqueous polyamide curing agent and the modified amine aqueous epoxy curing agent (the mass ratio of the aqueous polyamide curing agent to the modified amine aqueous epoxy curing agent is preferably 1: 1.5-2.5).

Based on the mass parts of the waterborne epoxy curing agent, the component B comprises 20-40 parts of water, preferably 25-37 parts of water, and more preferably 30-35 parts of water; the water is preferably deionized water.

Based on the mass parts of the waterborne epoxy curing agent, the component B comprises 3-15 parts of pigment, preferably 5-10 parts. In the invention, the pigment preferably comprises unsaturated polyester color paste and/or water-based phthalocyanine blue paste, the water-based phthalocyanine blue paste preferably comprises one or more of water-based phthalocyanine blue paste, water-based phthalocyanine green paste and water-based phthalocyanine yellow paste, when multiple components are mixed, the specific type or proportion of each component is not specially limited, and the pigment can be selected by a person skilled in the art according to the color required by the product.

Based on the mass parts of the waterborne epoxy curing agent, the component B comprises 5-20 parts of filler, preferably 10-15 parts. In the invention, the filler preferably comprises one or more of titanium dioxide, barium sulfate, talcum powder, mica, quartz powder and alumina, and when a plurality of components are mixed, the specific type or proportion of each component is not specially limited; specifically, the filler can be titanium dioxide, barium sulfate, talcum powder, mica, quartz powder or alumina, or a mixture of mica and titanium dioxide (the mass ratio of mica to titanium dioxide is preferably 1.8-2.2: 1), or a mixture of barium sulfate and quartz powder (the mass ratio of barium sulfate to quartz powder is preferably 0.8-1.2: 1), or a mixture of mica and quartz powder (the mass ratio of mica to quartz powder is preferably 1: 5-7). In the invention, the particle sizes of the titanium dioxide, the barium sulfate, the talcum powder, the mica and the quartz powder are preferably less than or equal to 20 mu m independently, and more preferably less than or equal to 15 mu m independently; the alumina is preferably nanoscale alumina, i.e., the particle size of the alumina is nanoscale.

Based on the mass parts of the waterborne epoxy curing agent, the component B comprises 0.1-1 part of a leveling agent, preferably 0.4-0.6 part. In the invention, the leveling agent preferably comprises a modified organic silicon type leveling agent and/or an acrylic acid copolymer type leveling agent, wherein the modified organic silicon type leveling agent preferably comprises one or more of a BYK-333 leveling agent, a Modaflow9200 leveling agent and a BYK-302 leveling agent; the acrylic copolymer type leveling agent preferably comprises one or more of a ModaflowEpsilon leveling agent, a KMT-5544 leveling agent and a BYK-381 leveling agent. When the leveling agent is prepared by mixing a plurality of components, the specific types or proportions of the components are not specially limited; specifically, the leveling agent can be a Modaflow epsilon leveling agent, a BYK-333 leveling agent, a BYK-302 leveling agent, a KMT-5544 leveling agent, a Modaflow9200 leveling agent or a BYK-381 leveling agent, or can be a mixture of the BYK-302 leveling agent and the KMT-5544 leveling agent (the mass ratio of the BYK-302 leveling agent to the KMT-5544 leveling agent is preferably 2.5-3.5: 1).

Based on the mass parts of the waterborne epoxy curing agent, the component B comprises 0.1-1 part of defoaming agent, preferably 0.4-0.6 part. In the invention, the defoaming agent preferably comprises one or more of BYK-012 defoaming agent, BYK-014 defoaming agent, TEGO2290 defoaming agent and DF-2307 defoaming agent, and the defoaming agent can be BYK-012 defoaming agent, BYK-014 defoaming agent, TEGO2290 defoaming agent or DF-2307 defoaming agent.

Based on the mass parts of the waterborne epoxy curing agent, the component B comprises 0.1-1 part of a dispersant, preferably 0.4-0.6 part. In the present invention, the dispersant is preferably a non-ionic wetting dispersant; the non-ionic wetting dispersant preferably comprises one or more of PE-100 wetting dispersant, DISPERBYK-191 wetting dispersant, TEGOPREN5840 wetting dispersant, DISPERBYK-2012 wetting dispersant and XP30 wetting dispersant, and when a plurality of components are mixed, the specific type or proportion of each component is not specially limited; specifically, the dispersant can be PE-100 wetting dispersant, DISPERBYK-191 wetting dispersant, TEGOPREN5840 wetting dispersant, DISPERBYK-2012 wetting dispersant or XP30 wetting dispersant. In the invention, the dispersing agent has strong wetting and dispersing capabilities on pigments and fillers, and is beneficial to improving the color strength and the storage stability of the floor paint.

Based on the mass parts of the waterborne epoxy curing agent, the component B comprises 0.5-5 parts of a toughening agent, preferably 1-3 parts. In the invention, the toughening agent is preferably a shell-core toughening agent, the shell-core toughening agent preferably comprises one or more of an E920 shell-core toughening agent, an FM-40 shell-core toughening agent and an MBS shell-core toughening agent, and when a plurality of components are mixed, the specific type or proportion of each component is not specially limited; specifically, the shell-core toughening agent can be an E920 shell-core toughening agent, an FM-40 shell-core toughening agent or an MBS shell-core toughening agent. According to the invention, the toughening agent can reduce the brittleness and improve the toughness of the paint film, and can effectively prevent the problems of paint film cracking and the like.

Based on the mass parts of the waterborne epoxy curing agent, the component B comprises 0.5-5 parts of rheological additive, preferably 1-3 parts. In the invention, the rheological additive preferably comprises one or more of BYK-410 rheological additive, BYK-430 rheological additive and BYK-R605 rheological additive, and when a plurality of components are mixed, the specific type or proportion of each component is not specially limited; specifically, the rheological additive can be BYK-410 rheological additive, BYK-430 rheological additive or BYK-R605 rheological additive. In the invention, the rheological additive can improve the flow property of the product and ensure that the product has good application property.

Based on the mass parts of the waterborne epoxy curing agent, the component B comprises 0.5-5 parts of curing accelerator, preferably 1-3 parts. In the invention, the curing accelerator is preferably one or more of 2-ethyl-4-methylimidazole, 2-methylimidazole, phenylimidazole and ferric acetylacetonate, and when a plurality of components are mixed, the specific type or proportion of each component is not particularly limited; specifically, the curing accelerator may be 2-ethyl-4-methylimidazole, 2-methylimidazole, phenylimidazole or iron acetylacetonate. In the invention, the curing accelerator can greatly reduce the curing reaction temperature, and is beneficial to the rapid proceeding of the curing reaction.

The invention provides a preparation method of the water-based epoxy floor paint, which comprises the following steps:

packaging the water-based epoxy emulsion to obtain a component A of the water-based epoxy floor paint;

mixing the water-based epoxy curing agent, water, pigment, filler, flatting agent, defoaming agent, dispersing agent, toughening agent, rheological additive and curing accelerator, filtering and packaging to obtain the component B of the water-based epoxy floor paint.

The invention packages the waterborne epoxy emulsion to obtain the component A of the waterborne epoxy floor paint. The packaging bag for packaging and the specification thereof are not specially limited and can be selected according to actual requirements.

The component B of the waterborne epoxy floor paint is obtained by mixing, filtering and packaging a waterborne epoxy curing agent, water, a pigment, a filler, a flatting agent, a defoaming agent, a dispersing agent, a toughening agent, a rheological aid and a curing accelerator. In the invention, the mixing is preferably carried out at the temperature of 25-45 ℃ under the stirring condition; the mixing equipment is not particularly limited, and a high-speed disperser well known to a person skilled in the art can be adopted; in the present invention, the mixing preferably comprises: carrying out first mixing on a water-based epoxy curing agent and water to obtain a first mixture; carrying out second mixing on the first mixture, the filler and the pigment to obtain a second mixture; and thirdly mixing the second mixture, the flatting agent, the defoaming agent, the dispersing agent, the toughening agent, the rheological additive and the curing accelerator.

In the invention, the stirring speed of the first mixing is preferably 400-600 r/min, and the mixing time is preferably 5-10 min; the stirring speed of the second mixing is preferably 600-900 r/min, and the mixing time is preferably 15-20 min; the stirring speed of the third mixing is preferably 1000-1200 r/min, and the mixing time is preferably 10-20 min. The components are mixed by adopting the mixing mode and conditions, so that the components are favorably and uniformly mixed, and the components are prevented from being aggregated.

After the raw materials of the component B are mixed, the mixture is filtered and packaged to obtain the component B of the water-based epoxy floor paint. In the invention, the aperture of the filtering screen is preferably 120-200 meshes, and more preferably 120-150 meshes; the packaging bag for packaging and the specification thereof are not specially limited and can be selected according to actual requirements.

The use method of the water-based epoxy floor paint is not specially limited, and the component A and the component B of the water-based epoxy floor paint are directly mixed when in use.

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the following embodiments. It should be understood that the embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

The weight of each component mentioned in the embodiments of the present invention may not only refer to the specific content of each component, but also represent the proportional relationship of the weight of each component, and therefore, it is within the scope of the disclosure of the embodiments of the present invention to scale up or down the content of each component of the composition according to the embodiments of the present invention.