CN110643252A - Water-based epoxy floor coating and preparation method thereof - Google Patents
Water-based epoxy floor coating and preparation method thereof Download PDFInfo
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- CN110643252A CN110643252A CN201910921883.2A CN201910921883A CN110643252A CN 110643252 A CN110643252 A CN 110643252A CN 201910921883 A CN201910921883 A CN 201910921883A CN 110643252 A CN110643252 A CN 110643252A
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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
- C09D151/00—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
- C09D151/08—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Abstract
The invention belongs to the field of coatings, and particularly relates to a water-based epoxy floor coating and a preparation method thereof. The invention provides a water-based epoxy floor coating, which consists of a first component and a second component, wherein the second component comprises a water acrylic acid epoxy hybrid emulsion; the first component comprises the following components in parts by weight, based on 100 parts by weight of the waterborne acrylic epoxy hybrid emulsion: 20-40 parts of nano inorganic material modified waterborne epoxy curing agent; 5-25 parts of pigment; 5-40 parts of a filling agent; 0.5-1.5 parts of a dispersant; 0.1-0.3 part of wetting agent; 1-2 parts of a film-forming assistant; 0.1-0.6 part of leveling agent; 0.1-1 part of defoaming agent; 0.2-0.8 part of thickening agent; 0.1-0.4 part of mildew preventive; 0.1-0.6 part of bactericide; 5-15 parts of water. The components have synergistic effect, so that the water-based epoxy floor coating has good thermal stability, wear resistance, weather resistance, high drying speed and long service life, and the obtained paint film has high fullness, corrosion resistance, oil resistance, acid and alkali resistance.
Description
Technical Field
The invention belongs to the field of coatings, and particularly relates to a water-based epoxy floor coating and a preparation method thereof.
Background
As a high polymer material taking water as a dispersion medium, the water-based epoxy floor coating not only can inherit the excellent performances of high bonding strength, good corrosion resistance, wear resistance and the like of the traditional solvent-based epoxy floor, but also has good performances of construction under high humidity, and simultaneously has the environment-friendly advantages of no toxicity, no peculiar smell, no pollution and the like, and can meet the low volatility of the environment-friendly requirement. In recent years, with the enhancement of environmental protection awareness, the growing importance is placed on the living environment, and water-based epoxy has attracted great attention, and is gradually replacing the traditional solvent-based epoxy material, and widely used in the industrial and living fields such as floor coating and protective coating. However, in practical application, the heat stability and wear resistance of the paint film of the existing water-based epoxy floor are poor, the service life is short, the weather resistance is poor, and the paint film is not suitable for outdoor floors, so that the wide application of the water-based epoxy floor paint is limited.
Disclosure of Invention
The invention mainly aims to provide a water-based epoxy floor paint, and also aims to provide a preparation method of the water-based epoxy floor paint, aiming at solving the problems of poor thermal stability and wear resistance, no weather resistance and short application period of the existing water-based epoxy floor paint film.
In order to achieve the purpose, the invention adopts the following technical scheme:
a water-based epoxy floor coating is composed of a first component and a second component, wherein the second component comprises a water-based acrylic acid epoxy hybrid emulsion;
the first component comprises the following components in parts by weight, based on 100 parts by weight of the aqueous acrylic acid-epoxy hybrid emulsion:
in the nano inorganic material modified waterborne epoxy curing agent, the nano inorganic material comprises nano silicon dioxide and/or nano titanium dioxide.
The water-based epoxy floor coating provided by the invention is a two-component water-based epoxy floor coating, and the water-based epoxy curing agent modified by the nano inorganic material is compounded with the water-based acrylic acid epoxy hybrid emulsion, so that the water-based epoxy floor coating has the characteristics of the nano inorganic material and the water-based acrylic acid, and has good thermal stability, wear resistance, weather resistance, high drying speed and long service life. Furthermore, the nano inorganic material modified waterborne epoxy curing agent, the waterborne acrylic acid epoxy hybrid emulsion and other auxiliaries are cooperatively used, so that the waterborne epoxy floor coating is endowed with high stability and high dispersibility, is convenient to store and construct, is high in film fullness after film forming, is corrosion-resistant, oil-resistant, acid-base-resistant and excellent in comprehensive performance, and is suitable for large-area popularization and use.
Correspondingly, the preparation method of the water-based epoxy floor coating comprises the following steps:
carrying out first mixing treatment on a nano inorganic material modified waterborne epoxy curing agent, a wetting agent, a film-forming assistant, a defoaming agent, a dispersing agent and water to obtain a first mixture;
carrying out second mixing treatment on the pigment, the filler and the first mixture to obtain a second mixture;
carrying out third mixing treatment on the thickening agent, the leveling agent and the second mixture to obtain a third mixture;
carrying out fourth mixing treatment on the defoaming agent, the mildew preventive, the bactericide and the third mixture to obtain a first component;
and mixing the first component and the second component to obtain the water-based epoxy floor coating.
The preparation method of the water-based epoxy floor coating provided by the invention is simple and convenient to operate and easy for large-scale preparation.
Detailed Description
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 specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The weight of each component mentioned in the description of the embodiment 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, the content of each component of the composition according to the description of the embodiment of the present invention is scaled up or down within the scope disclosed in the description of the embodiment of the present invention. Specifically, the weight described in the description of the embodiments of the present invention may be a unit of weight known in the chemical industry, such as μ g, mg, g, and kg.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated.
A water-based epoxy floor coating is composed of a first component and a second component, wherein the second component comprises a water-based acrylic acid epoxy hybrid emulsion;
the first component comprises the following components in parts by weight, based on 100 parts by weight of the aqueous acrylic acid-epoxy hybrid emulsion:
in the nano inorganic material modified waterborne epoxy curing agent, the nano inorganic material comprises nano silicon dioxide and/or nano titanium dioxide.
The waterborne epoxy floor coating provided by the embodiment of the invention is a two-component waterborne epoxy floor coating, and the waterborne epoxy curing agent modified by the nano inorganic material is compounded with the waterborne acrylic acid epoxy hybrid emulsion, so that the waterborne epoxy floor coating has the characteristics of the nano inorganic material and the waterborne acrylic acid, and has good thermal stability, wear resistance, weather resistance, higher drying speed and longer service life. Furthermore, the nano inorganic material modified waterborne epoxy curing agent, the waterborne acrylic acid epoxy hybrid emulsion and other auxiliaries are cooperatively used, so that the waterborne epoxy floor coating is endowed with high stability and high dispersibility, is convenient to store and construct, and has high film fullness after film forming, corrosion resistance, oil resistance, acid and alkali resistance and excellent comprehensive performance.
Specifically, in the nano inorganic material modified waterborne epoxy curing agent, the nano inorganic material comprises nano silicon dioxide and/or nano titanium dioxide. Therefore, the characteristics of nano silicon dioxide and nano titanium dioxide are introduced into the water-based epoxy floor coating, so that the water-based epoxy floor coating has good thermal stability and wear resistance.
As an implementation mode, the nano inorganic material is a mixture of nano silicon dioxide and nano titanium dioxide, and the weight ratio of the nano silicon dioxide to the nano titanium dioxide is 1 (8-12), so that the nano titanium dioxide and an epoxy curing agent are cross-linked to form a three-dimensional network structure, the Zimmedon hardness and the flexibility are increased, meanwhile, the nano titanium dioxide can be maximally filled in gaps, and the water resistance, the heat resistance and the mechanical property of a paint film are improved. In some embodiments, the nano-inorganic material is a mixture of nano-silica and nano-titania, and the weight ratio of nano-silica to nano-titania is 1: 10. In other embodiments, the nano inorganic material modified waterborne epoxy hardener is mainly prepared by reacting nano silicon dioxide, nano titanium dioxide, triethylene tetramine, polypropylene glycol diglycidyl ether and epoxy resin, such as in-situ polymerization reaction, and the nano inorganic material modified waterborne epoxy hardener obtained by using the nano inorganic material modified waterborne epoxy hardener and the waterborne acrylic epoxy hybrid emulsion can enable the waterborne epoxy floor coating to have good viscosity and film-forming property. In still other embodiments, the epoxy is preferably an E51 type epoxy.
More specifically, the preparation of the nano inorganic material modified waterborne epoxy curing agent comprises the following steps:
a. obtaining an epoxy resin solution, and dropwise adding the triethylene tetramine into the epoxy resin solution to perform a first reaction to obtain a first reactant;
b. dropwise adding the polypropylene glycol diglycidyl ether into the first reactant to perform a second reaction to obtain a second reactant;
c. and mixing the second reactant with the nano silicon dioxide and the nano titanium dioxide, and emulsifying to obtain the nano inorganic material modified waterborne epoxy curing agent.
According to the preparation method of the nano inorganic material modified waterborne epoxy curing agent, after the waterborne epoxy curing agent is synthesized through reaction, nano silicon dioxide and nano titanium dioxide are added for emulsification, and the nano silicon dioxide and the nano titanium dioxide are combined with the waterborne epoxy curing agent in a crosslinking manner, so that the nano inorganic material modified waterborne epoxy curing agent emulsion with high stability and high dispersibility is obtained, and the thermal stability and the wear resistance of a paint film formed by the waterborne epoxy floor paint are obviously improved. Further, in the step a, the solvent of the epoxy resin solution is propylene glycol methyl ether. The first reaction is carried out at 80 ℃ or less, and in some embodiments, the reaction temperature of the first reaction is 70 to 75 ℃ and the reaction time is 1.5 hours or more. In step b, the second reaction is carried out at 80 ℃ or less, and in some embodiments, the reaction temperature of the second reaction is 70 to 75 ℃ and the reaction time is 3 hours or more. In step c, the step of mixing the second reactant with the nano-silica and the nano-titania is performed at 50 ℃ or lower to facilitate the subsequent emulsification process. In some embodiments, the time of emulsification is 50 min.
Specifically, the water-based acrylic acid epoxy hybrid emulsion is used as a film forming main material of the water-based epoxy floor coating, is an epoxy emulsion modified by an acrylic acid monomer, has good ultraviolet resistance and ageing resistance, is endowed with good outdoor weather resistance, fills the gap of a common outdoor epoxy floor, has high drying speed, and can obviously shorten the surface drying time of the coating. In the embodiment of the invention, the waterborne acrylic acid epoxy hybrid emulsion and the waterborne epoxy curing agent modified by the nano inorganic material are compounded, so that the waterborne epoxy floor coating has the characteristics of the nano inorganic material and the waterborne acrylic acid, the working life of the waterborne epoxy floor coating is obviously prolonged, the working life of the conventional waterborne epoxy floor coating in about 1 hour is prolonged to at least 6 hours, and the construction performance of the waterborne epoxy floor coating is obviously improved. As an embodiment, the waterborne acrylic epoxy hybrid emulsion is mainly prepared by the reaction of epoxy resin, acrylic acid, alkyl acrylate and an emulsifier, such as in-situ polymerization reaction, so that the obtained waterborne acrylic epoxy hybrid emulsion has high stability and high dispersibility, and the waterborne acrylic epoxy hybrid emulsion is matched with the waterborne epoxy curing agent modified by the nano inorganic material for use, so that the waterborne epoxy floor coating has good outdoor weather resistance and film forming performance. In some embodiments, the epoxy resin is preferably an E51 type epoxy resin; in other embodiments, the alkyl acrylate is selected from at least one of n-butyl acrylate, ethyl acrylate, methyl acrylate, and methyl methacrylate.
In the embodiment of the invention, the weight ratio of the waterborne acrylic acid epoxy hybrid emulsion and the waterborne epoxy curing agent modified by the nano inorganic material has important influence on the performance of the waterborne epoxy floor coating. Specifically, the nano inorganic material modified waterborne epoxy curing agent accounts for 20-40 parts by weight of 100 parts by weight of the waterborne acrylic epoxy hybrid emulsion, and in some specific embodiments, the nano inorganic material modified waterborne epoxy curing agent accounts for 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39 and 40 parts by weight of the waterborne acrylic epoxy hybrid emulsion.
And the pigment is used for adjusting the color of the water-based epoxy floor coating. As an embodiment, the pigment is selected from titanium dioxide. In the examples of the present invention, the pigment is 5-25 parts, and in some embodiments, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 parts by weight of the aqueous acrylic epoxy hybrid emulsion is 100 parts by weight.
And the filler is mainly used for adjusting the rheological property, the film-forming property, the mechanical strength and the like of the water-based epoxy floor coating. In the embodiment of the invention, the filler is 5-40 parts, and in some specific embodiments, the filler is 5, 8, 10, 11, 15, 17, 20, 21, 24, 27, 29, 32, 35, 37, 40 parts based on 100 parts of the aqueous acrylic epoxy hybrid emulsion. In one embodiment, the filler comprises talc and barium sulfate, and the weight ratio of the talc to the barium sulfate is (5-15): (15-25). In some embodiments, the talc powder is 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 parts, based on 100 parts of the aqueous acrylic epoxy hybrid emulsion; in other embodiments, the barium sulfate is 15, 16, 17, 18, 19, 21, 22, 23, 24, 25 parts by weight of the aqueous acrylic epoxy hybrid emulsion, based on 100 parts by weight of the aqueous acrylic epoxy hybrid emulsion.
And the dispersant is used for adjusting the dispersing performance of the water-based epoxy floor coating, and as one embodiment, the dispersant is at least one selected from a nonionic dispersant, an anionic dispersant and a high molecular dispersant. In some embodiments, the dispersant is selected to be a polymeric dispersant, such as BYK-190 dispersant, which is most stable in dispersion and most stable in storage. In the embodiment of the invention, the dispersant is 0.5-1.5 parts, and in some specific embodiments, the dispersant is 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5 parts based on 100 parts of the aqueous acrylic epoxy hybrid emulsion.
And the wetting agent is used for adjusting the surface tension of the water-based epoxy floor coating, and the wetting agent which is conventional in the coating field can be adopted. In the embodiment of the invention, the wetting agent is 0.1-0.3 part, in some embodiments, 0.1, 0.15, 0.2, 0.25, 0.3 part based on 100 parts of the aqueous acrylic epoxy hybrid emulsion.
The film forming additive is used for adjusting the film forming property of the water-based epoxy floor coating, and can be a conventional film forming additive in the coating field. In the embodiment of the invention, the film-forming assistant is 1-2 parts, and in some specific embodiments, the film-forming assistant is 1, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, or 2 parts, based on 100 parts of the aqueous acrylic epoxy hybrid emulsion.
The leveling agent can be a conventional leveling agent in the coating field and is used for adjusting the leveling property of the water-based epoxy floor coating so as to level the surface of a paint film. In the embodiment of the invention, the leveling agent is 0.1-0.6 part by weight, and in some specific embodiments, the leveling agent is 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 part by weight, based on 100 parts by weight of the aqueous acrylic epoxy hybrid emulsion.
The defoaming agent can be a defoaming agent which is conventional in the coating field and is used for inhibiting or eliminating foam generated in the construction process of the water-based epoxy floor coating. In the embodiment of the invention, the defoaming agent is 0.1-1 part, and in some specific embodiments, the defoaming agent is 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9 or 1 part based on 100 parts of the aqueous acrylic epoxy hybrid emulsion.
The thickening agent can be a conventional thickening agent in the field of coatings and is used for improving the viscosity of the water-based epoxy floor coating. In the embodiment of the invention, the thickener is 0.2-0.8 part, and in some specific embodiments, the thickener is 0.2, 0.3, 0.4, 0.5, 0.6, 0.7 and 0.8 part based on 100 parts of the aqueous acrylic acid-epoxy hybrid emulsion.
The mildew preventive and the bactericide can be the conventional mildew preventive and bactericide in the coating field, and are used for inhibiting the growth of mildew and preventing the mildew and deterioration of the water-based epoxy floor coating. In the embodiment of the invention, the mildew preventive is 0.1-0.4 part by weight, and in some specific embodiments, the mildew preventive is 0.1, 0.2, 0.3 and 0.4 part by weight based on 100 parts by weight of the aqueous acrylic epoxy hybrid emulsion. In the embodiment of the invention, the bactericide is 0.1-0.6 part, in some specific embodiments, 0.1, 0.2, 0.3, 0.4, 0.5 and 0.6 part based on 100 parts of the aqueous acrylic epoxy hybrid emulsion.
And water serving as a diluent of the water-based epoxy floor coating and used for adjusting the viscosity of the water-based epoxy floor coating. In the embodiment of the invention, based on 100 parts of the water-based acrylic epoxy hybrid emulsion, the water is 5-15 parts, and in some specific embodiments, the water is 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 parts.
In summary, under the comprehensive action of the components in the optimized formula provided by the embodiment of the invention, the waterborne epoxy floor coating has the advantages of optimal comprehensive performance, excellent thermal stability, wear resistance and weather resistance, high surface drying speed, long service life, convenience in construction, high film fullness after film forming, corrosion resistance, oil resistance, acid and alkali resistance. When in use, the first component and the second component are mixed according to a certain weight ratio, for example, the first component and the second component are mixed according to the weight ratio of 1:1 until the first component and the second component are uniform.
The following is a preparation method of the waterborne epoxy floor coating.
Correspondingly, the preparation method of the water-based epoxy floor coating comprises the following steps:
s01, carrying out first mixing treatment on a nano inorganic material modified waterborne epoxy curing agent, a wetting agent, a film-forming assistant, a defoaming agent, a dispersing agent and water to obtain a first mixture;
s02, carrying out second mixing treatment on the pigment, the filler and the first mixture to obtain a second mixture;
s03, carrying out third mixing treatment on the thickening agent, the leveling agent and the second mixture to obtain a third mixture;
s04, carrying out fourth mixing treatment on the defoaming agent, the mildew preventive, the bactericide and the third mixture to prepare a first component;
s05, mixing the first component and the second component to obtain the water-based epoxy floor paint.
The preparation method of the water-based epoxy floor coating provided by the embodiment of the invention is simple and convenient to operate and easy for large-scale preparation.
Specifically, in step S01, the nano inorganic material modified waterborne epoxy curing agent, the wetting agent, the film forming aid, the defoaming agent, the dispersing agent and water are subjected to a first mixing treatment, so that the nano inorganic material modified waterborne epoxy curing agent, the wetting agent, the film forming aid, the defoaming agent, the dispersing agent and the water are fully and uniformly mixed. In some embodiments, the step of subjecting the nano-inorganic material modified waterborne epoxy curing agent, the wetting agent, the film forming aid, the defoamer, the dispersant and the water to the first compounding process is performed in a stirred tank; in other embodiments, the first mixing process is performed at a speed of 800-.
In the step of subjecting the pigment, the filler and the first mixture to the second mixing treatment in step S02, the rotation speed of the second mixing treatment is preferably 1200-1500rpm, and the stirring time is preferably 15-20 minutes.
In the step of subjecting the thickener, the leveling agent and the second mixture to the third mixing treatment in step S03, the rotation speed of the third mixing treatment is preferably 800-100rpm, and the stirring time is preferably 10-15 minutes.
In the step of subjecting the antifoaming agent, the mildewproof agent, the bactericide and the third mixture to the fourth mixing treatment in step S04, the rotation speed of the fourth mixing treatment is preferably 600-800rpm, and the stirring time is preferably 3-5 minutes.
In step S05, the first component and the second component are mixed so that the first component and the second component are mixed well. In one embodiment, the step of mixing the first component and the second component comprises mixing the first component and the second component in a weight ratio of 1 (0.8-1.2). In some embodiments, the weight ratio of the first component to the second component is 1: 1.
In order to make the above details and operations of the present invention clearly understood by those skilled in the art, and to make the progress of the present invention, a waterborne epoxy floor coating and a preparation method thereof obviously embodied, the following examples illustrate the practice of the present invention.
Example 1
The embodiment provides a waterborne epoxy terrace coating, comprises first component and second component, includes:
a first component
A second component
100 parts of water-based acrylic acid epoxy hybrid emulsion.
The preparation method comprises the following steps:
s11, carrying out first mixing treatment on a nano inorganic material modified waterborne epoxy curing agent, a wetting agent, a film-forming assistant, a defoaming agent, a dispersing agent and water for 5min to obtain a first mixture;
s12, carrying out second mixing treatment on the pigment, the filler and the first mixture for 15min to obtain a second mixture;
s13, carrying out third mixing treatment on the thickening agent, the leveling agent and the second mixture for 13min to obtain a third mixture;
s14, carrying out fourth mixing treatment on the defoaming agent, the mildew preventive, the bactericide and the third mixture for 4min to prepare a first component;
s15, mixing the first component and the second component according to the weight ratio of 1:1 to obtain the water-based epoxy floor coating.
Example 2
The embodiment provides a waterborne epoxy terrace coating, comprises first component and second component, includes:
a first component
A second component
100 parts of water-based acrylic acid epoxy hybrid emulsion.
The preparation method of the aqueous epoxy floor coating provided by this embodiment is basically the same as that of embodiment 1, and details are not repeated here.
Example 3
The embodiment provides a waterborne epoxy terrace coating, comprises first component and second component, includes:
a first component
A second component
100 parts of water-based acrylic acid epoxy hybrid emulsion.
The preparation method of the aqueous epoxy floor coating provided by this embodiment is basically the same as that of embodiment 1, and details are not repeated here.
Comparative example 1
The difference between the waterborne epoxy floor coating provided by the comparative example and the coating provided by the embodiment 1 is that: adopts a conventional waterborne epoxy curing agent WA-02 which is purchased from Junjiang science and technology; conventional epoxy E51 resin was used and was purchased from national institutes.
Comparative example 2
The difference between the waterborne epoxy floor coating provided by the comparative example and the coating provided by the embodiment 1 is that: adopts a conventional waterborne epoxy curing agent ZW6119 which is purchased from Zhongkezhiyuan; adopts conventional epoxy hybrid emulsion ZW-2870 and is purchased from Zhongkezhiyuan.
Test example 1
The waterborne epoxy floor coating prepared in the embodiments 1-3 is respectively prepared into floor paint films with the thickness of less than 0.5mm, and each performance of the coating is detected according to indexes in GB/T22374 and 2018 floor coating materials.
Table 1 shows the detection results, and in comparative examples 1-2, the surface drying time is 8h, the actual drying time is 48h, the abrasion resistance is 0.06(750g/500r)/g, the artificial climate aging resistance is not resisted, the pot life is 1h, and the volatile organic compound content is 120 g/l. In examples 1 to 3, the surface drying time is not more than 20min, the actual drying time is not more than 8h, the abrasion resistance is not more than 0.03(750g/500r)/g, the artificial weather aging resistance is not less than 400h, the pot life is not less than 6h, and the volatile organic compound is not more than 30 g/l. The paint film formed by the waterborne epoxy floor coating prepared by the embodiment of the invention has excellent drying speed, wear resistance, weather resistance, ultra-long service life and low volatility.
TABLE 1
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The water-based epoxy floor coating is characterized by consisting of a first component and a second component, wherein the second component comprises a water-based acrylic acid epoxy hybrid emulsion;
the first component comprises the following components in parts by weight, based on 100 parts by weight of the aqueous acrylic acid-epoxy hybrid emulsion:
in the nano inorganic material modified waterborne epoxy curing agent, the nano inorganic material comprises nano silicon dioxide and/or nano titanium dioxide.
2. The water-based epoxy floor coating of claim 1, wherein the nano inorganic material is a mixture of nano silica and nano titania, and the weight ratio of the nano silica to the nano titania is 1 (8-12).
3. The water-based epoxy floor coating as claimed in claim 2, wherein the nano inorganic material modified water-based epoxy hardener is mainly prepared by reacting nano silicon dioxide, nano titanium dioxide, triethylene tetramine, polypropylene glycol diglycidyl ether and epoxy resin.
4. The waterborne epoxy floor coating of claim 3, wherein the preparation of the nano-inorganic material modified waterborne epoxy curing agent comprises:
obtaining an epoxy resin solution, mixing the epoxy resin solution with the triethylene tetramine, and carrying out a first reaction to obtain a first reactant;
mixing the polypropylene glycol diglycidyl ether with the first reactant to perform a second reaction to obtain a second reactant;
and mixing the second reactant with the nano silicon dioxide and the nano titanium dioxide, and emulsifying to obtain the nano inorganic material modified waterborne epoxy curing agent.
5. The water-based epoxy floor coating of claim 4, wherein the reaction temperature of the first reaction is 70-75 ℃ and the reaction time is more than 1.5 hours; and/or
The reaction temperature of the second reaction is 70-75 ℃, and the reaction time is more than 3 hours.
6. The aqueous epoxy floor coating of any one of claims 1 to 5 wherein the aqueous acrylic epoxy hybrid emulsion is made primarily from the reaction of an epoxy resin, acrylic acid, an alkyl acrylate, and an emulsifier.
7. The aqueous epoxy floor coating of claim 6, wherein the alkyl acrylate is selected from at least one of n-butyl acrylate, ethyl acrylate, methyl acrylate, and methyl methacrylate.
8. The water-based epoxy floor coating of any one of claims 1 to 5, wherein the filler comprises talc and barium sulfate, and the weight ratio of the talc to the barium sulfate is (5-15): (15-25).
9. A method of making the aqueous epoxy floor coating of any one of claims 1 to 8, comprising the steps of:
carrying out first mixing treatment on a nano inorganic material modified waterborne epoxy curing agent, a wetting agent, a film-forming assistant, a defoaming agent, a dispersing agent and water to obtain a first mixture;
carrying out second mixing treatment on the pigment, the filler and the first mixture to obtain a second mixture;
carrying out third mixing treatment on the thickening agent, the leveling agent and the second mixture to obtain a third mixture;
carrying out fourth mixing treatment on the defoaming agent, the mildew preventive, the bactericide and the third mixture to obtain a first component;
and mixing the first component and the second component to obtain the water-based epoxy floor coating.
10. The method according to claim 9, wherein the step of mixing the first component with the second component comprises mixing the first component with the second component in a weight ratio of 1 (0.8-1.2).
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| CN201910921883.2A CN110643252A (en) | 2019-09-27 | 2019-09-27 | Water-based epoxy floor coating and preparation method thereof |
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| CN201910921883.2A CN110643252A (en) | 2019-09-27 | 2019-09-27 | Water-based epoxy floor coating and preparation method thereof |
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Cited By (5)
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| CN111732403A (en) * | 2020-07-30 | 2020-10-02 | 苏州大乘环保新材有限公司 | Moulding color pavement coating |
| CN111748262A (en) * | 2020-06-01 | 2020-10-09 | 宁波宏坤交通科技有限公司 | Water-based epoxy floor coating and preparation method thereof |
| CN113150646A (en) * | 2021-04-02 | 2021-07-23 | 湖北巴司特科技股份有限公司 | Preparation method of novel inorganic hybrid modified epoxy coating |
| CN114410173A (en) * | 2021-12-29 | 2022-04-29 | 上海正欧实业有限公司 | Anti-cracking floor coating and preparation method thereof |
| CN114672206A (en) * | 2022-03-11 | 2022-06-28 | 山东高速交通科技有限公司 | Aqueous bi-component road marking paint |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111748262A (en) * | 2020-06-01 | 2020-10-09 | 宁波宏坤交通科技有限公司 | Water-based epoxy floor coating and preparation method thereof |
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| CN113150646A (en) * | 2021-04-02 | 2021-07-23 | 湖北巴司特科技股份有限公司 | Preparation method of novel inorganic hybrid modified epoxy coating |
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| CN114410173A (en) * | 2021-12-29 | 2022-04-29 | 上海正欧实业有限公司 | Anti-cracking floor coating and preparation method thereof |
| CN114672206A (en) * | 2022-03-11 | 2022-06-28 | 山东高速交通科技有限公司 | Aqueous bi-component road marking paint |
| CN114672206B (en) * | 2022-03-11 | 2023-03-14 | 山东高速交通科技有限公司 | Aqueous bi-component road marking paint |
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