A water-based floor coating and a method for preparing the same

Abstract

The application discloses a water-based floor paint and a preparation method thereof, and raw materials include deionized water 5-10 parts, epoxy emulsion 30-50 parts, defoaming agent 0.1-0.2 parts, dispersing agent 0.2-0.5 parts, wetting agent 0.3-0.5 parts, thickening agent 0.3-1 part, synthetic rock sheet 25-40 parts and curing agent 5-20 parts in terms of mass fraction. The application improves the problem of single color of floor paint by adding the synthetic rock sheet, can make the water-based floor paint with the effect of imitating granite, and can provide a certain thickness and make up the uneven ground due to the high solid content of the synthetic rock sheet, thereby saving the application of putty.

Description

Technical Field

[0001] This invention belongs to the field of coating technology, specifically relating to a water-based floor coating and its preparation method. Background Technology

[0002] Epoxy floor coatings have long been widely used in the construction of floors in public areas such as factories, workshops, parking spaces, and hospitals due to their low cost and good load-bearing capacity, wear resistance, and aesthetics. However, they are mainly available in single colors, which limits their application range. Furthermore, the construction process is complex, requiring several steps: 1-2 coats of primer, 2-3 coats of mortar, 1-2 coats of putty, 2 coats of topcoat, and 1-2 coats of clear coat. The large number of coats and complex process also limit the application and promotion of epoxy floor coatings.

[0003] In summary, it is necessary to provide a method for applying floor coatings that can produce a variety of colors, achieve a granite-like effect, and is easy to apply. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a water-based floor coating and its preparation method. By adding synthetic rock flakes, the problem of limited color options in floor paints is improved, enabling the creation of floor coatings with a granite-like effect. Simultaneously, the high solids content of the synthetic rock flakes provides sufficient thickness to fill uneven areas on the floor, reducing the need for putty and simplifying the application process.

[0005] One of the technical solutions of the present invention is a water-based floor coating, which is composed of deionized water, water-based epoxy resin, synthetic rock chips, and additives; the additives include defoamers, dispersants, wetting agents, thickeners, and curing agents.

[0006] Preferably, by weight, it comprises the following components: 5-10 parts deionized water, 30-50 parts waterborne epoxy resin, 0.1-0.2 parts defoamer, 0.2-0.5 parts dispersant, 0.3-0.5 parts wetting agent, 0.3-1 parts thickener, 25-40 parts synthetic rock chips, and 5-20 parts curing agent.

[0007] Preferably, the waterborne epoxy resin is bisphenol A epoxy resin; the defoamer is BYK-A530; the dispersant is BYK-2155; the wetting agent is TEGO Wet KL 245; the thickener is Rohm and Haas hydrophobic modified polyurethane thickener RM-8W; the curing agent is modified fatty amine environmentally friendly curing agent; and the synthetic rock chips are a mixture of conventional rock chips of different colors, more preferably, with a particle size of 1-5 mm.

[0008] The second technical solution of the present invention, the preparation method of the above-mentioned water-based floor coating, includes the following steps:

[0009] (1) Add deionized water to a container, and add wetting agent, dispersant and defoamer under stirring, and stir to mix;

[0010] (2) Add water-based epoxy resin and thickener under stirring conditions, and stir to mix;

[0011] (3) Add synthetic rock chips under stirring conditions and mix them;

[0012] (4) Add curing agent under stirring conditions, and after stirring and mixing, water-based floor coating is obtained.

[0013] Preferably, in step (1), the stirring speed is 300-500 rpm and the stirring time is 3-5 min; in step (2), the stirring speed is 600-800 rpm and the stirring time is 10-20 min; in step (3), the stirring speed is 300-400 rpm and the stirring time is 3-5 min; in step (4), the stirring speed is 300-500 rpm and the stirring time is 3-5 min.

[0014] The third technical solution of the present invention is a water-based flooring, comprising a base coat, a middle coat, a topcoat, and a clear coat; wherein the topcoat is the main coating prepared using the above-mentioned water-based flooring coating.

[0015] The fourth technical solution of the present invention is that the above-mentioned water-based flooring is constructed by roller coating, and the primer layer, intermediate layer, topcoat layer and clear coat layer are applied by roller coating or spraying in sequence.

[0016] Preferably, the base coat is 0.07-0.15mm thick and is applied in 1-2 coats by roller; the intermediate coat is 0.1-1mm thick and is applied in 1-2 coats by roller; the topcoat is 1-2mm thick and is applied in 1-2 coats by roller; after drying, the surface is sanded smooth and then coated with a topcoat layer of about 0.5-1mm thickness in 1-2 coats.

[0017] Preferably, the base coat is a solvent-free epoxy floor primer; the intermediate coat is a solvent-free epoxy self-leveling intermediate coat; and the topcoat is a solvent-free epoxy self-leveling topcoat.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) Different colored rock flake mixtures are added to water-based floor coatings to create water-based floor coatings that mimic the effect of granite, thus improving the problem of the single color of existing floor paints.

[0020] (2) The use of solvent-free epoxy self-leveling intermediate coating can provide the background color of imitation granite paint, and at the same time can fill the unevenness of the ground, saving the application of putty; combined with the high solid content of synthetic rock chips, it can further provide a certain thickness to fill the unevenness of the ground, thus eliminating the need for putty.

[0021] (3) The multi-colored water-based sand coating layer prepared by the water-based floor coating of the present invention not only gives the coating color effect, but also provides high wear resistance and load-bearing capacity with high content of natural quartz sand, thus providing the load-bearing capacity of the mortar layer and saving the application of the mortar layer.

[0022] (4) A solvent-free epoxy self-leveling topcoat is used, which provides protection for the top layer due to its excellent performance.

[0023] Specific implementation methods

[0024] Various exemplary embodiments of the present invention will now be described in detail. This detailed description should not be considered as a limitation of the present invention, but rather as a more detailed description of certain aspects, features, and embodiments of the present invention.

[0025] It should be understood that the terminology used in this invention is merely for describing particular embodiments and is not intended to limit the invention. Furthermore, with respect to numerical ranges in this invention, it should be understood that each intermediate value between the upper and lower limits of the range is also specifically disclosed. Every smaller range between any stated value or intermediate value within a stated range, and any other stated value or intermediate value within said range, is also included in this invention. The upper and lower limits of these smaller ranges may be independently included or excluded from the range.

[0026] Unless otherwise stated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. While only preferred methods and materials have been described herein, any methods and materials similar or equivalent to those described herein may be used in the implementation or testing of this invention. All references to this specification are incorporated by way of citation to disclose and describe methods and / or materials associated with those references. In the event of any conflict with any incorporated reference, the content of this specification shall prevail.

[0027] Various modifications and variations can be made to the specific embodiments described in this specification without departing from the scope or spirit of the invention, as will be apparent to those skilled in the art. Other embodiments derived from this specification will also be readily apparent to those skilled in the art. This application specification and embodiments are merely exemplary.

[0028] The terms “include,” “including,” “have,” “contain,” etc., used in this article are all open-ended terms, meaning that they include but are not limited to.

[0029] Unless otherwise specified, the term "parts" in this invention refers to parts by weight.

[0030] In the following examples, the epoxy resin used is bisphenol A epoxy resin; the defoamer is BYK-A530; the dispersant is BYK-2155; the wetting agent is TEGO Wet KL 245; the thickener is Rohm and Haas hydrophobic modified polyurethane thickener RM-8W; the synthetic rock chips are a mixture of conventional rock chips of different colors, the main components of which are inorganic materials, polymer resins, nonionic additives, surfactants, and pigments; and the curing agent is a modified fatty amine environmentally friendly curing agent.

[0031] The raw materials and dosages of the imitation granite water-based floor coatings selected in Examples 1-6 are shown in Table 1;

[0032] Table 1

[0033]

[0034]

[0035] The preparation methods of Examples 1-6 are as follows:

[0036] (1) Add deionized water to a container, add wetting agent, dispersant and defoamer at 500 rpm, and stir for 5 min;

[0037] (2) Increase the rotation speed to 800 rpm, add water-based epoxy resin and thickener, and stir for 20 min;

[0038] (3) Adjust the rotation speed to 300 rpm, add the synthetic rock chips, and stir for 5 min;

[0039] (4) Adjust the speed to 400 rpm, add the curing agent, and stir for 5 minutes to obtain the imitation granite water-based floor coating.

[0040] The epoxy flooring was applied sequentially using rollers. The primer layer was made from high-performance epoxy flooring primer (from Hebei Chenyang Industry and Trade Group Co., Ltd.). The intermediate coat was made from high-performance epoxy flooring intermediate coat. The topcoat layer was made from the water-based faux granite flooring coating prepared in Examples 1-6. The clear coat was made from high-performance epoxy self-leveling topcoat. The primer layer was 0.15mm thick and applied in two coats. The intermediate coat was 0.5mm thick and applied in one coat. The topcoat layer was 2mm thick and applied in two coats. After drying, the surface was sanded smooth, and a clear coat of approximately 0.5mm thickness was applied in one coat. The resulting faux granite epoxy flooring was then subjected to performance testing. The testing standards are shown in Table 2, and the test results are shown in Table 3.

[0041] Table 2

[0042] Testing items Testing standards Standard requirements Surface drying time, actual drying time GB / T1728-1979 Surface drying time ≤ 6 hours, actual drying time ≤ 24 hours Pencil hardness GB / T6739-1996 ≥H wear-resistant JC / T985-2005 ≤0.030 Impact resistance JC / T1015-2006 No cracks, no peeling Water and chemical resistance GB / T9625 No bubbling, no peeling Anti-slip properties JC / T1015-2006 Dry friction coefficient ≥ 0.5

[0043] Table 3

[0044]

[0045] Table 3 shows that the granite-like water-based floor coating prepared by this invention can eliminate the need for mortar and putty application when used in epoxy flooring, greatly simplifying the construction process. Furthermore, the prepared epoxy flooring not only possesses the aesthetic appeal of granite but also significantly improves its overall performance. When the amount of synthetic rock chips added is below the limit specified in this invention, the granite-like color is not obvious; when the amount of synthetic rock chips added is above the limit specified in this invention, the performance of the prepared epoxy flooring is affected.

[0046] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A water-based flooring system that mimics granite, characterized in that, It consists of a base coat, an intermediate coat, a top coat, and a clear coat; the top coat is prepared using a water-based floor coating that mimics granite. The components of the simulated granite water-based floor coating, by weight, are as follows: 5-10 parts deionized water, 30-50 parts water-based epoxy resin, 0.1-0.2 parts defoamer, 0.2-0.5 parts dispersant, 0.3-0.5 parts wetting agent, 0.3-1 part thickener, 25-40 parts synthetic rock chips, and 5-20 parts curing agent; the water-based epoxy resin is bisphenol A epoxy resin; the defoamer is BYK-A530; the dispersant is BYK-2155; the wetting agent is TEGO Wet KL 245; the thickener is RM-8W hydrophobically modified polyurethane thickener produced by Rohm and Haas; and the curing agent is a modified fatty amine environmentally friendly curing agent. The preparation method of the imitation granite water-based floor coating includes the following steps: (1) Add deionized water to a container, and add wetting agent, dispersant and defoamer under stirring, and stir to mix; (2) Add water-based epoxy resin and thickener under stirring conditions, and stir to mix; (3) Add synthetic rock chips under stirring conditions and mix. (4) Add curing agent under stirring conditions, and after stirring and mixing, obtain imitation granite water-based floor coating; In step (1), the stirring speed is 300-500 rpm and the stirring time is 3-5 min; in step (2), the stirring speed is 600-800 rpm and the stirring time is 10-20 min; in step (3), the stirring speed is 300-400 rpm and the stirring time is 3-5 min; in step (4), the stirring speed is 300-500 rpm and the stirring time is 3-5 min. The construction method of the imitation granite water-based flooring is carried out by roller coating, and the primer layer, intermediate layer, topcoat layer and clear coat layer are applied by roller coating or spraying in sequence. The base coat uses a solvent-free epoxy floor primer; the intermediate coat uses a solvent-free epoxy self-leveling intermediate coat; and the topcoat uses a solvent-free epoxy self-leveling topcoat.

2. The granite-like water-based flooring according to claim 1, characterized in that, The base coat is 0.07-0.15mm thick and is applied in 1-2 coats by roller; the intermediate coat is 0.1-1mm thick and is applied in 1-2 coats by roller; the topcoat is 1-2mm thick and is applied in 1-2 coats by roller; after drying, sand it smooth and apply a topcoat with a thickness of 0.5-1mm by roller, in 1-2 coats.

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