Environment-friendly multi-color floor

Abstract

The present application relates to a kind of environment-friendly multicolor floor, including emulsion type interface agent layer, cement layer, primer layer, water-based floor multicolor coating layer and finish layer coated on substrate in turn.The cement layer is self-leveling cement layer or polymer decorative cement layer;The primer layer includes water-based epoxy penetrating primer layer and high-strength colored primer layer coated in turn;The water-based epoxy penetrating primer layer is coated on cement layer;The finish layer is wear-resistant and stain-resistant water-based polyurethane finish.The present application avoids the use of water-soluble protective glue and bentonite and alkali-swellable thickener compared with prior art, so that the water resistance and durability of finished product are also significantly improved.And high-hardness emulsion is used from primer to finish, and the amount is high, the film is dense, which meets the high requirements of floor on strength, adhesion and resistance.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of coating technology, and in particular to an environmentally friendly multi-color floor. BACKGROUND

[0002] The decorative methods of floor are various, when using paint, the oil-based floor paint is still widely used, but the appearance of the paint is monotonous, and it is rich in organic solvents, which can seriously pollute the environment, so its market size is gradually shrinking.

[0003] While the oil-based floor paint is shrinking, the environmentally friendly floor paint is emerging. The environmentally friendly floor paint includes solvent-free epoxy floor and water-based floor paint. The solvent-free epoxy floor basically does not contain organic solvents, but it also has the problems of monotonous appearance and high cost. In the field of water-based floor paint, the main products on the market are water-based epoxy and water-based polyurethane, which have a long history and are relatively mature, but the appearance is monotonous and cannot imitate the granite effect on the ground, and the decorative effect is insufficient.

[0004] In addition, the root cause of the stability problem of the traditional water-based floor paint is the introduction of lithium magnesium silicate protective glue into the base paint. The principle of introducing lithium magnesium silicate into the base paint is that the particle formation of the traditional water-based floor paint must rely on the hydrogen bond force generated by the interaction between the lithium magnesium silicate protective glue and cellulose in the base paint. However, after introducing lithium magnesium silicate into the base paint, the base paint actually forms a thixotropic gel. This thixotropic gel not only has high viscosity, which brings difficulties to the production process, but also causes color difference due to temperature, storage time, stirring intensity and time, resulting in different production granulation results and batch instability. In addition, lithium magnesium silicate is a lithium resource product. In recent years, with the development of new energy vehicles, the price of lithium resources has risen straight up, which has brought cost pressure to paint manufacturers using lithium magnesium silicate as a water-based multi-color raw material. SUMMARY

[0005] The purpose of the present application is to overcome at least one of the above-mentioned defects of the prior art and provide an environmentally friendly multi-color floor. The floor avoids the use of a large amount of water-soluble protective glue, bentonite and alkali swelling thickening agent, so that the water resistance and durability of the finished product are also significantly improved. And from the base coat to the top coat, high-hardness emulsion is used, and the amount is high, the paint film is dense, which meets the high requirements of the floor on strength, adhesion and resistance.

[0006] The purpose of the present application can be achieved by the following technical solutions:

[0007] An environmentally friendly multi-color floor, comprising an emulsion type interface agent layer, a cement layer, a primer layer, a water-based floor multi-color paint layer and a topcoat layer coated on a substrate in sequence.

[0008] Further, the cement layer is a self-leveling cement layer or a polymer decorative cement layer; the primer layer comprises a water-based epoxy penetrating primer layer and a high-strength colored primer layer which are coated in sequence; the water-based epoxy penetrating primer layer is coated on the cement layer; and the topcoat layer is a wear-resistant and stain-resistant water-based polyurethane finish.

[0009] The high-strength colored primer, the water-based multicolor coating for floor and the wear-resistant and stain-resistant water-based polyurethane finish are the focus of the present application, and the other layers are all mature materials.

[0010] The high-strength colored primer can be a water-based epoxy formulation or a solvent-free epoxy formulation (for high load-bearing occasions), and needs to meet the primer standard of the national standard GB / T22374-2018 for floor coating materials. It meets the requirements of adhesion, strength and resistance, and provides a background color for the multicolor coating. Such material is also a mature material.

[0011] Further, the high-strength colored primer comprises the following components by weight: 45-50 parts of a styrene-acrylic emulsion, 15-18 parts of RO water, 0.1-0.2 parts of conventional hydroxyethyl cellulose, 0.1-0.2 parts of a wetting dispersant, 20-25 parts of pigments and fillers, 0.1-0.2 parts of a defoaming agent, 4-5 parts of a film-forming aid, 1.5-2 parts of an anti-freezing agent, 0.2-0.4 parts of a bactericide, 0.1-0.3 parts of a leveling agent and 0.1-0.3 parts of a thickening agent.

[0012] Further, the styrene-acrylic emulsion is a styrene-acrylic emulsion with a glass transition temperature greater than 70℃; the conventional hydroxyethyl cellulose is 250HBR; the wetting dispersant is a hydrophobic copolymer sodium salt dispersant; the pigments and fillers are one or more of cast stone powder, mica powder, talc powder, quartz powder or rutile titanium dioxide; the defoaming agent is a modified polysiloxane and / or an organic silicon modified mineral oil; the film-forming aid is a dodecanol ester; the anti-freezing agent is propylene glycol; the bactericide is a nitrogen-sulfur heterocyclic compound without organic volatile matter (0VOC); the leveling agent is a polyurethane leveling agent providing high shear viscosity; and the thickening agent is a hydrophobically modified alkali-swellable thickening agent providing low shear viscosity.

[0013] Further, the preparation method of the high-strength colored primer comprises the following steps: according to the formula, mixing the styrene-acrylic emulsion and RO water together, then adding the conventional hydroxyethyl cellulose, uniformly dispersing, then sequentially adding the wetting dispersant, pigments and fillers and defoaming agent, uniformly dispersing again, then reducing the dispersion speed, sequentially adding the film-forming aid, anti-freezing agent, bactericide, leveling agent and thickening agent, uniformly dispersing, then adjusting the color to obtain the high-strength colored primer.

[0014] Specifically:

[0015] First step: the formula amount of emulsion and RO water into the dispersion cylinder, in order to add cellulose, dispersed 15 min to make it evenly distributed, in order to add dispersant, color filler, defoaming agent, high speed dispersion 30 min, 1000 ~ 1200 rpm

[0016] Second step: reduce the dispersion speed, 800 ~ 1000 rpm, in order to add film forming agent, antifreeze, bactericide, leveling agent, thickening agent, 10 min, make the base paint storage for use.

[0017] Third step: the above base paint according to the color, make the base paint color.

[0018] Further, the water-based floor multi-color paint includes a base paint color for color matching, a granulation intermediate for reaction forming and isolation protection function, and a film forming latex paint for giving the paint film forming property; the floor multi-color paint includes a water-in-water floor multi-color paint and a water-in-sand floor multi-color paint; the base paint color of the water-in-water floor multi-color paint is mixed with natural sand at a mass ratio of 100:(50-100) to obtain the base paint color of the water-in-sand floor multi-color paint; the mass ratio of the base paint color, the granulation intermediate and the latex paint in the water-in-water floor multi-color paint is 9:(4-5):(4-5), preferably 9:4.5:4.5; the mass ratio of the base paint color, the granulation intermediate and the latex paint in the water-in-sand floor multi-color paint is 10:(4-6):(4-6), preferably 10:5:5. The water-in-water floor multi-color paint and the water-in-sand floor multi-color paint can both reach the standard in terms of slip resistance, and theoretically, the slip resistance of the water-in-sand floor multi-color paint should be higher than that of the water-in-water floor multi-color paint, which can meet the high slip resistance requirement.

[0019] Further,

[0020] The base paint color of the water-in-water floor multi-color paint includes the following components by weight: RO water 35-50 parts, special reactive cellulose 2 parts, conventional hydroxyethyl cellulose 0.5 parts, wetting dispersant 0.1-0.3 parts, color filler 10-15 parts, defoaming agent 0.1-.3 parts, film forming aid 2-3 parts, high hardness emulsion 30-40 parts, antifreeze 0.6-1.2 parts, bactericide 0.2-0.4 parts, and mildewcide 0.1-0.3 parts, and color paste;

[0021] In the above raw materials of the water-in-water floor multi-color paint, 50 parts of 200 mesh white natural sand is added to obtain the base paint color of the water-in-sand floor multi-color paint.

[0022] The high-hardness emulsion is one or a mixture of water-based high-hardness acrylic resin, water-based high-hardness silicone-acrylic resin (glass transition temperature greater than 50 DEG C), wherein the high-hardness silicone-acrylic emulsion has more balanced cost performance; the special reactive cellulose is guar gum; the conventional hydroxyethyl cellulose is 250HBR; the dispersing agent is a sodium salt dispersing agent of a hydrophobic copolymer; the defoaming agent is one or a mixture of modified polysiloxane and silicone-modified mineral oil; the pigment and filler is one or a mixture of cast stone powder, mica powder, quartz powder, talc powder and rutile titanium dioxide; the film-forming aid is dodecanol ester; the antifreezing agent is propylene glycol; the bactericide is a nitrogen-sulfur heterocyclic compound without organic volatile matter (0VOC); the fungicide is carbendazim BCM; and the color paste is a water-based environment-friendly weather-resistant color paste.

[0023] The formula does not contain magnesium lithium silicate protective glue, is not a thixotropic body with high yield value, the viscosity of the base paint is 75-90 KU, the fluidity is excellent, the production process is efficient and smooth, the color matching and color matching of the latex paint are the same, the accuracy and stability are greatly improved, and the color difference problem of the multi-color coating industry is effectively solved. The formula is not only directly used for the production of water-in-water main material of floor, and can be used for the production of water-in-sand main material of floor after sanding, has strong universality, the semi-finished product storage is simpler, and the whole process is more standardized.

[0024] The granulation intermediate comprises the following components in parts by weight: RO water 60-70 parts, borate glue coupling agent 1-2 parts, defoaming agent 0.1-0.2 parts, wetting agent 0.1-0.2 parts, inorganic protective glue solution 5-10 parts and coupling agent modified silica sol 15-20 parts;

[0025] The inorganic protective glue solution is a magnesium lithium silicate aqueous solution; the defoaming agent is one or a mixture of modified polysiloxane and silicone-modified mineral oil; the wetting agent is a sulfonate wetting agent; the coupling agent modified silica sol is a titanium acid coupling agent modified silica sol; and the borate glue coupling agent is a readily soluble borate.

[0026] The film-forming latex paint comprises the following components in parts by weight: RO water 8-32 parts, high-hardness emulsion 40-60 parts, reactive emulsion 10-20 parts, pH adjusting agent 0.5-0.8 parts, bactericide 0.1-0.3 parts, defoaming agent 0.1-0.2 parts, film-forming aid 3-4 parts, antifreezing agent 0.8-1.5 parts, bentonite powder material 0-3 parts, PAC-LV solution 3-6 parts and thickening agent 0-2 parts.

[0027] The high-hardness emulsion is one or a mixture of water-based acrylic resin, water-based silicone acrylic resin, and water-based polyurethane resin, wherein the high-hardness silicone acrylic emulsion with a glass transition temperature greater than 50℃ has a more balanced cost performance. The PH regulator is 2-amino-2-methyl-1-propanol; the bactericide is a nitrogen-sulfur heterocyclic compound without organic volatile substances (0VOC); the defoaming agent is one or a mixture of modified polysiloxane and silicone-modified mineral oil; the film-forming aid is dodecanol ester; the antifreezing agent is propylene glycol; the thickening agent is one or a mixture of hydrophobically modified alkali-swellable emulsion thickening agent and associative polyurethane thickening agent; the powder material is bentonite; the reactive emulsion is grafting pure acrylic emulsion; and the PAC-LV solution is a poly-anionic cellulose solution.

[0028] The reactive emulsion of the present formulation is grafting pure acrylic emulsion, which reacts with the coupling agent-modified silica sol in the granulation intermediate and reacts with the inorganic protective peptizing solution in the granulation intermediate. The two reactions thicken the finished product and produce a self-thickening effect. The former reaction is the main reaction, and the latter reaction is the secondary reaction (because the amount of inorganic protective peptizing solution is greatly reduced) but can play an auxiliary role.

[0029] The amount of water-in-water and water-in-sand reactive emulsion is roughly the same, but the amount of thickening agent is different, and the amount of non-reactive high-hardness emulsion and water can also be different.

[0030] Further, the preparation method of the floor multi-color paint comprises the following steps:

[0031] Preparation of base paint colorant: according to the formula, special reactive cellulose and conventional hydroxyethyl cellulose are sequentially added in RO water, and after uniform dispersion, wetting dispersant, pigment and defoaming agent are sequentially added, and after uniform dispersion, the dispersion speed is reduced, and film-forming aid, antifreezing agent, emulsion, bactericide and mildew-proof agent are sequentially added, and uniform stirring is performed until uniformity. After color adjustment, a water-in-water floor multi-color paint base paint colorant is prepared. In the preparation of water-in-sand floor multi-color paint, natural sand is added first, and then color adjustment is performed.

[0032] Preparation of granulation intermediate: according to the formula, borate coupling agent is first added in RO water, and after uniform dissolution, defoaming agent, wetting agent, inorganic magnesium lithium silicate protective peptizing solution and modified silica sol liquid are sequentially added, and after uniform stirring, a granulation intermediate is obtained.

[0033] Preparation of latex paint: according to the formula, pH regulator, bactericide, defoaming agent, antifreezing agent, film-forming aid and PAC-LV solution are sequentially added in RO water, and after uniform stirring, thickening agent is added, the dispersion speed is increased, and uniform stirring is performed until uniformity. A latex paint is obtained.

[0034] Preparation of floor multi-color paint: the base paint color material is covered with a granulation intermediate, after granulation, then add latex paint, blend evenly, after standing reaction, get floor multi-color paint.

[0035] Specifically:

[0036] Base paint color material production steps:

[0037] First step: add the formula amount of RO water to the dispersion cylinder, add cellulose in order, disperse for 15 min to make it disperse evenly, add dispersant, pigment and filler, defoaming agent in order, high speed dispersion for 30 min, 1000-1200 rpm

[0038] Second step: reduce the dispersion speed, 800-1000 rpm, add film forming aid, antifreeze, emulsion, bactericide, mildewcide in order, stir for 10 min, make the base paint ready for storage.

[0039] Third step: adjust the color of the above base paint according to requirements to make color material. If it is water-sand, add sand before adjusting the color.

[0040] Granulation intermediate production steps:

[0041] Add the formula amount of RO water to the dispersion cylinder, first add boric acid salt glue coupling agent to dissolve for 30 min, add defoaming agent, wetting agent, inorganic magnesium lithium silicate protective glue solution, modified silica sol liquid in order, 300-500 rpm, stir evenly for 10 min, make ready for storage.

[0042] Film forming latex paint production steps:

[0043] Add the formula amount of RO water and various emulsions to the dispersion cylinder, add PH regulator, bactericide, defoaming agent, antifreeze, film forming aid and PAC-LV solution in order during stirring, stirring speed 500-800 rpm, finally add thickening agent, slowly increase the dispersion speed, 900-1200 rpm, uniform speed stirring for 10 min, detect the viscosity and store for later use

[0044] Finished product production process: take the more complex water-sand floor as an example

[0045] The base paint containing natural quartz sand is matched with various colors of environmentally friendly water-based color paste, which is first adjusted in color according to requirements, then coated with granulation intermediate, which immediately reacts on the surface of the color material (dispersed phase) and plays its shaping function. After coating the color material, it is granulated according to the size of different stone color points. The granulation method can be screen granulation method, which passes through different screen sizes under pressure to achieve the required color point size, or stirring and shearing granulation. After granulation, the materials are mixed in proportion, then the prepared weather-resistant film forming latex paint is added, and the mixture is mechanically stirred and blended evenly. After standing for more than half an hour, it becomes a water-sand coating finished product.

[0046] The production process diagram of the sand floor multi-color paint is shown as Figure 2

[0047] The base paint of the present application does not contain lithium magnesium silicate protective glue, and the base paint is essentially a latex paint without cohesion, which is close to Newtonian fluid, so the appearance reproducibility and consistency are higher, and the production flow is more convenient and smooth. The lithium magnesium silicate protective glue used in the granulation intermediate of the present application is not much, so the dependence on expensive lithium magnesium silicate resources is significantly reduced, and the negative effects caused by adding lithium magnesium silicate into the base paint are avoided. The color point forming of the present application mainly relies on the chemical reaction between the special cellulose in the base paint and the cross-linking curing agent in the granulation intermediate. The self-thickening reaction occurs between the granulation intermediate and the film-forming latex paint, so the particle anti-settling does not depend on a large amount of alkali swelling thickening agent and bentonite, but mainly relies on the self-thickening reaction between the granulation intermediate and the film-forming latex paint, so the dry film performance and resistance are very good, and the thickening effect is stable. The base paint and the film-forming latex paint of the present application can also react, although this reaction does not play a major role in forming and thickening, but its contribution mainly lies in increasing the storage stability of the system. Therefore, the present application is a full reaction system, which has overall performance, manufacturing process, and cost advantages.

[0048] The reactive emulsion of the present application is a grafting type pure propylene emulsion, which not only has a hybrid reaction with the coupling agent modified silica sol in the granulation intermediate, but also has a reaction with the lithium magnesium silicate protective glue solution in the granulation intermediate. The two reactions make the finished product thicken, producing a self-thickening effect. The first reaction is the main reaction, and the second reaction is the secondary reaction (because the amount of lithium magnesium silicate protective glue solution is greatly reduced), but it can play an auxiliary role. By focusing on controlling the amount of reactive emulsion and the amount of coupling agent modified silica sol, the "controllable" self-thickening goal can be achieved.

[0049] The color point particle forming of the present application mainly relies on the chemical reaction between the special cellulose in the base paint and the cross-linking curing agent in the granulation intermediate. The cohesion of the particles after the reaction is mainly chemical covalent bond, which is much more firm than the hydrogen bond force (a kind of intermolecular force) between traditional cellulose and protective glue. Therefore, the dispersed phase color point particles are not easy to disintegrate and become smaller, and it is impossible to dissolve in the continuous phase, so the system has higher stability.

[0050] The present application is developed from the full reaction type multi-color formula for wall surface, and it can be used for floor by using high hardness emulsion with high amount, and dense paint film to meet the high requirements of floor on strength, adhesion and resistance. The adhesion of the floor multi-color series coating is separately measured as 0-1 level, the hardness is H level, the impact resistance is that the paint film has no cracks and peeling after 500 gram steel ball impact at 100 centimeters high, the oil resistance is qualified for 72 hours, the alkali resistance is qualified for 72 hours, the acid resistance is qualified for 48 hours, and the water resistance is qualified for 168 hours.​

[0051] The schematic diagram of the forming mechanism of the local floor multi-color paint is shown in Figure 1 Figure 3 The emulsion, the pigment and the color paste used in the present application are all weather-resistant materials, so the indoor and outdoor floor can be used.

[0052] Further, the wear-resistant and stain-resistant water-based polyurethane finish coat comprises a mass ratio of 5:1 of the A component and the B component;

[0053] The A component comprises, by weight parts, polyurethane resin emulsion 60-70 parts, RO water 25-30 parts, defoaming agent 0.1-0.2 parts, wetting agent 0.1-0.3 parts, adhesion promoter 0.1-0.2 parts, AMP-9 0.1-0.2 parts, bactericide 0.1-0.2 parts, ethylene glycol monobutyl ether 2-4 parts, anti-blocking aid 0.5-0.8 parts, wax emulsion 1-2 parts, 8699 thickening agent 0.1-0.3 parts, 8299 thickening agent 0.1-0.2 parts; and the B component comprises a curing agent.

[0054] Specifically, the polyurethane resin emulsion is 8216 polyurethane resin emulsion, which is an epoxy-modified polyurethane prepolymer water-based emulsion providing hydroxyl groups, has high hardness after curing, and is wear-resistant. The curing agent is an isocyanate resin curing agent for water-based systems based on HDI aliphatic type, is resistant to yellowing, tough, and is suitable for indoor and outdoor use. The A and B components are cured at room temperature to form an epoxy-polyurethane interpenetrating network coating, which has excellent comprehensive performance and can meet the performance requirements of floor applications. The defoaming agent is an organic silicon-based defoaming agent; the wetting agent is a non-ionic surfactant that wets the substrate and enhances adhesion; the adhesion promoter is a titanate coupling agent; the anti-blocking aid is a metal soap dispersion such as zinc stearate or calcium stearate. The wax emulsion is a polyethylene wax emulsion or a polytetrafluoroethylene modified polyethylene wax emulsion aid (melting point or softening point above 100 degrees), which increases surface hardness, wear resistance, scratch resistance, anti-blocking and anti-pollution. The 8699 thickening agent is a high shear viscosity polyurethane thickening agent, and the 8299 thickening agent is a medium-low shear viscosity alkali-swellable thickening agent.

[0055] The wear-resistant and stain-resistant water-based polyurethane finish coat prepared by the present application has very high slipperiness if coated on a metal plate, is not slip-resistant, and has a hardness of up to 4H, but when coated on the surface of the main material coating of a water-in-water and water-in-sand floor that is not smooth, not only meets the anti-slip performance requirements of the floor standard, but also has anti-blocking and anti-pollution properties.

[0056] Further, the preparation method of the wear-resistant and stain-resistant water-based polyurethane finish coat comprises the following steps:

[0057] The preparation of the A component: according to the formula, RO water and polyurethane emulsion are added into a dispersion cylinder, defoaming agent, wetting agent, adhesion promoter, AMP-95, bactericide, amphoteric auxiliary ethylene glycol monobutyl ether, anti-blocking auxiliary and wax emulsion are sequentially added during stirring, thickening agent is added after uniform stirring, stirring speed is increased, and the A component is prepared after uniform stirring;

[0058] The B component is mixed into the A component, and the wear-resistant and stain-resistant water-based polyurethane finish paint is obtained after uniform stirring.

[0059] Specifically, the formula amount of RO water and polyurethane emulsion is added into a dispersion cylinder, defoaming agent, wetting agent, adhesion promoter, AMP-95, bactericide, amphoteric auxiliary ethylene glycol monobutyl ether, anti-blocking auxiliary and wax emulsion are sequentially added during stirring, the stirring speed is 500-800 rpm, finally, the thickening agent is added, the dispersion speed is slowly increased, 900-1200 rpm, uniform stirring is carried out for 10 min, the viscosity is detected, and the product is packaged.

[0060] Compared with the prior art, the present application has the following advantages:

[0061] (I) Performance advantage: 1. Avoiding using a large amount of water-soluble protective glue, bentonite and alkali-swellable thickening agent, the water resistance and durability of the finished product are obviously improved. And high-hardness emulsion is used from the base coating to the top coating, and the amount is high, the paint film is dense, and the high requirements of the floor on strength, adhesion and resistance are met. 2. Indoor and outdoor universal. 3. System integration, not only the comprehensive performance of the composite coating meets the requirements of the national standard of floor paint, but also the excellent decorative property of the multi-color paint is applied to the floor, which opens up a new application field of multi-color paint.

[0062] (II) Manufacturing process advantage: the present application adopts a full-reactive multi-color paint technical route, the base paint does not contain magnesium lithium silicate protective glue, the base paint is essentially a latex paint without cohesion, which is close to Newtonian fluid, and is no longer a thixotropic gel, so the appearance reproducibility and consistency are higher, the production flow is more convenient and smooth, and the manufacturing speed is increased by more than 30%.

[0063] (III) Resource advantage: the water-based floor multi-color paint designed in the present application adopts a full-reactive multi-color paint technical route, a large amount of expensive lithium resources is saved, and compared with the existing multi-color floor scheme, more than 80% of magnesium lithium silicate is saved.

[0064] (IV) Each coating is a water-based system, which is environmentally friendly, healthy and safe. BRIEF DESCRIPTION OF DRAWINGS

[0065] Figure 1 A schematic diagram of the environmentally friendly multi-color floor designed in the present application;

[0066] Figure 2 The production process diagram of the floor multi-color paint containing sand in the present application;

[0067] Figure 3 The formation mechanism schematic diagram of the floor multi-color paint designed in the present application;

[0068] The labels shown in the figure: 1 - base; 2 - emulsion type interface agent layer, 3 - cement layer, 4 - water-based epoxy penetrating primer layer, 5 - high-strength colored primer layer, 6 - water-based floor multi-color paint layer, 7 - wear-resistant and stain-resistant water-based polyurethane topcoat layer. DETAILED DESCRIPTION

[0069] The present application will be described in detail below in combination with the drawings and specific examples. The present embodiment is implemented on the premise of the technical solution of the present application, and gives a detailed implementation mode and specific operation process, but the protection scope of the present application is not limited to the following examples.

[0070] The same high-strength colored primer and wear-resistant and stain-resistant water-based polyurethane topcoat are used in examples 1-18.

[0071] The formula of the high-strength colored primer is as follows by weight parts: 399 benzyl lactone (glass transition temperature greater than 70℃) 50 parts, RO water 15-18 parts, conventional hydroxyethyl cellulose 0.2 parts, wetting dispersant 0.2 parts, pigment and filler 25 parts, defoaming agent 0.2 parts, film-forming aid 4-5 parts, antifreeze agent 1.5-2 parts, bactericide 0.2-0.4 parts, leveling agent 0.1-0.3 parts and thickening agent 0.1-0.3 parts.

[0072] Among them, the conventional hydroxyethyl cellulose is 250HBR; the dispersant is a hydrophobic copolymer sodium salt dispersant; the defoaming agent is one or a mixture of modified polysiloxane, silicone modified mineral oil; the pigment and filler is one or a mixture of cast stone powder, mica powder, talc powder, quartz powder, rutile titanium dioxide; the film-forming aid is dodecanol ester; the antifreeze agent is propylene glycol; the bactericide is a nitrogen sulfur heterocyclic compound without organic volatile (0VOC); the leveling agent is a polyurethane leveling agent providing high shear viscosity, and the thickening agent is a hydrophobically modified alkali-swellable thickening agent providing low shear viscosity.

[0073] The preparation steps are as follows:

[0074] First step: add the formula amount of emulsion and RO water into the dispersion cylinder, add cellulose in sequence, disperse for 15 min to make it uniformly dispersed, then add dispersant, pigment and filler, defoaming agent, and disperse at high speed for 30 min, 1000-1200 rpm;

[0075] Second step: reduce the dispersion speed, 800-1000 rpm, add film forming aid, anti-freezing agent, fungicide, leveling agent, thickening agent in sequence, stir for 10 min, and prepare the base paint for the primer.

[0076] Third step: adjust the color of the above base paint according to requirements, and prepare the primer color paint.

[0077] The abrasion-resistant and stain-resistant water-based polyurethane topcoat comprises a mass ratio of 5:1 of a component A and a component B; the component A comprises, by weight, 60-70 parts of polyurethane resin emulsion, 25-30 parts of RO water, 0.1-0.2 parts of defoaming agent, 0.1-0.3 parts of wetting agent, 0.1-0.2 parts of adhesion promoter, 0.1-0.2 parts of AMP-95, 0.1-0.2 parts of fungicide, 2-4 parts of ethylene glycol monobutyl ether, 0.5-0.8 parts of anti-blocking aid, 1-2 parts of wax emulsion, 0.1-0.3 parts of 8699 thickening agent, and 0.1-0.2 parts of 8299 thickening agent; and the component B comprises a curing agent.

[0078] The polyurethane resin emulsion is 8216 polyurethane resin emulsion, which is an epoxy-modified polyurethane prepolymer water-based emulsion providing hydroxyl groups, has high hardness after curing, and is abrasion-resistant. The curing agent is an isocyanate resin curing agent for water-based systems based on HDI aliphatic type, is resistant to yellowing, tough, and is suitable for indoor and outdoor use. The two-component curing reaction at room temperature forms an epoxy-polyurethane interpenetrating network coating, which has excellent comprehensive performance and can meet the performance requirements of floor applications. The defoaming agent is an organic silicon-based defoaming agent; the wetting agent is a non-ionic surfactant, which wets the substrate and enhances adhesion; the adhesion promoter is a titanate coupling agent; the anti-blocking aid is a metal soap dispersion such as zinc stearate or calcium stearate. The wax emulsion is a polyethylene wax emulsion or a polytetrafluoroethylene-modified polyethylene wax emulsion, etc. aid (melting point or softening point above 100 degrees), which increases surface hardness, abrasion resistance, scratch resistance, anti-blocking, and anti-pollution. The 8699 thickening agent is a high shear viscosity polyurethane thickening agent, and the 8299 thickening agent is a medium-low shear viscosity alkali-swellable thickening agent.

[0079] The preparation method comprises the following steps:

[0080] The formula amount of RO water and polyurethane emulsion is added to a dispersion cylinder, and the defoaming agent, wetting agent, adhesion promoter, AMP-95, fungicide, amphoteric aid ethylene glycol monobutyl ether, anti-blocking aid, and wax emulsion are sequentially added during stirring at a stirring speed of 500-800 rpm. Finally, the thickening agent is added, the dispersion speed is slowly increased to 900-1200 rpm, and uniform stirring is performed for 10 min. After detecting the viscosity, the product is packaged for use. The component B is mixed into the component A, and after uniform stirring, the abrasion-resistant and stain-resistant water-based polyurethane topcoat is obtained.

[0081] The formulations of the components used in the water-based floor multi-color coatings in Examples 1-18 are as follows:

[0082] 1. The base paint colorant has the following selection by weight parts:

[0083] ① RO water 48.7 parts, special reactive cellulose 2 parts, conventional hydroxyethyl cellulose 0.5 parts, wetting dispersant 0.2 parts, pigment filler 15 parts, defoaming agent 0.3 parts, film-forming aid 2 parts, high-hardness silicone-acrylic emulsion 30 parts, anti-freezing agent 0.6 parts, bactericide 0.4 parts, and mildewcide 0.3 parts, and color paste;

[0084] ② RO water 43.2 parts, special reactive cellulose 2 parts, conventional hydroxyethyl cellulose 0.5 parts, wetting dispersant 0.2 parts, pigment filler 15 parts, defoaming agent 0.3 parts, film-forming aid 2.5 parts, high-hardness silicone-acrylic emulsion 35 parts, anti-freezing agent 0.6 parts, bactericide 0.4 parts, and mildewcide 0.3 parts, and color paste;

[0085] ③ RO water 37.7 parts, special reactive cellulose 2 parts, conventional hydroxyethyl cellulose 0.5 parts, wetting dispersant 0.2 parts, pigment filler 15 parts, defoaming agent 0.3 parts, film-forming aid 3 parts, high-hardness silicone-acrylic emulsion 40 parts, anti-freezing agent 0.6 parts, bactericide 0.4 parts, and mildewcide 0.3 parts, and color paste;

[0086] ④ The same as ①, except that 200-mesh white natural sand is added in an amount of half the total mass of ①, and the high-hardness silicone-acrylic emulsion accounts for 20% of the total mass of ④;

[0087] ⑤ The same as ①, except that 200-mesh white natural sand is added in an amount of half the total mass of ①, and the high-hardness silicone-acrylic emulsion accounts for 23.3% of the total mass of ④;

[0088] ⑥ The same as ①, except that 200-mesh white natural sand is added in an amount of half the total mass of ①, and the high-hardness silicone-acrylic emulsion accounts for 26.7% of the total mass of ④;

[0089] 2. The granulated intermediate has the following selection by weight parts:

[0090] RO water 69.6 parts, borate glue coupling agent 1.6 parts, defoaming agent 0.2 parts, wetting agent 0.2 parts, inorganic magnesium lithium silicate protective glue solution 9 parts, and coupling agent modified silica sol 20 parts.

[0091] 3. The film-forming latex paint has the following selection by weight parts:

[0092] ① RO water 31.4 parts, high hardness silicone-acrylate emulsion 40 parts, reactive emulsion 20 parts, pH regulator 0.5 parts, bactericide 0.2 parts, defoamer 0.2 parts, film forming aid 3 parts, anti-freezing agent 1.5 parts, bentonite powder material 0 parts, PAC-LV solution 3 parts and thickening agent 0.2 parts;

[0093] ② RO water 21 parts, high hardness silicone-acrylate emulsion 50 parts, reactive emulsion 20 parts, pH regulator 0.5 parts, bactericide 0.2 parts, defoamer 0.2 parts, film forming aid 3.4 parts, anti-freezing agent 1.5 parts, bentonite powder material 0 parts, PAC-LV solution 3 parts and thickening agent 0.2 parts;

[0094] ③ RO water 10.5 parts, high hardness silicone-acrylate emulsion 60 parts, reactive emulsion 20 parts, pH regulator 0.5 parts, bactericide 0.2 parts, defoamer 0.2 parts, film forming aid 3.9 parts, anti-freezing agent 1.5 parts, bentonite powder material 0 parts, PAC-LV solution 3 parts and thickening agent 0.2 parts;

[0095] ④ RO water 29 parts, high hardness silicone-acrylate emulsion 40 parts, reactive emulsion 20 parts, pH regulator 0.7 parts, bactericide 0.3 parts, defoamer 0.2 parts, film forming aid 3 parts, anti-freezing agent 1.5 parts, bentonite powder material 0.8 parts, PAC-LV solution 4.2 parts and thickening agent 0.3 parts;

[0096] ⑤ RO water 18.6 parts, high hardness silicone-acrylate emulsion 50 parts, reactive emulsion 20 parts, pH regulator 0.7 parts, bactericide 0.3 parts, defoamer 0.2 parts, film forming aid 3.4 parts, anti-freezing agent 1.5 parts, bentonite powder material 0.8 parts, PAC-LV solution 4.2 parts and thickening agent 0.3 parts;

[0097] ⑤ RO water 8.1 parts, high hardness silicone-acrylate emulsion 60 parts, reactive emulsion 20 parts, pH regulator 0.7 parts, bactericide 0.3 parts, defoamer 0.2 parts, film forming aid 3.9 parts, anti-freezing agent 1.5 parts, bentonite powder material 0.8 parts, PAC-LV solution 4.2 parts and thickening agent 0.3 parts;

[0098] To simplify procurement and warehouse management, the high hardness silicone-acrylate emulsion in the film forming emulsion paint and the high hardness silicone-acrylate emulsion in the base paint colorant are of the same variety.

[0099] The high-hardness emulsion is one of water-based high-hardness acrylic resin, water-based high-hardness silicone acrylic resin, or a mixture thereof (glass transition temperature greater than 50℃), wherein the high-hardness silicone acrylic emulsion has more balanced cost performance. The special reactive cellulose is guar gum or the like; the conventional hydroxyethyl cellulose is 250HBR; the dispersing agent is a hydrophobic copolymer sodium salt dispersing agent; the defoaming agent is one of modified polysiloxane, silicone modified mineral oil, or a mixture thereof; the pigment and filler is one of cast stone powder, mica powder, quartz powder, talc powder, rutile titanium dioxide, or a mixture of multiple thereof; the film-forming aid is dodecanol ester; the antifreezing agent is propylene glycol; the bactericide is a nitrogen-sulfur heterocyclic compound without organic volatile matter (0VOC); the fungicide is carbendazim BCM; and the color paste is a water-based environment-friendly weather-resistant color paste.

[0100] The inorganic protective colloid solution is a lithium magnesium silicate aqueous solution; the defoaming agent is one of modified polysiloxane, silicone modified mineral oil, or a mixture thereof; the wetting agent is a sulfonate wetting agent; the coupling agent modified silica sol is a titanate coupling agent modified silica sol; the borate coupling agent is a readily soluble borate; and a water-in-water and water-in-sand shared granulation intermediate is used to facilitate standardized operation.

[0101] The high-hardness emulsion is one of water-based acrylic resin, water-based silicone acrylic resin, and water-based polyurethane resin, or a mixture thereof, wherein the high-hardness silicone acrylic emulsion with a glass transition temperature greater than 50℃ has more balanced cost performance. The PH regulator is 2-amino-2-methyl-1-propanol; the bactericide is a nitrogen-sulfur heterocyclic compound without organic volatile matter (0VOC); the defoaming agent is one of modified polysiloxane, silicone modified mineral oil, or a mixture thereof; the film-forming aid is dodecanol ester; the antifreezing agent is propylene glycol; the thickening agent is one of hydrophobically modified alkali-swellable emulsion type thickening agent and associative polyurethane thickening agent, or a mixture thereof; the powder material is a bentonite material; the reactive emulsion is a grafting type pure acrylic emulsion; and the PAC-LV solution is a polyanionic cellulose solution.

[0102] The preparation method is as follows:

[0103] The base paint colorant is prepared by the following steps:

[0104] Step 1: RO water in the formula amount is added to a dispersion cylinder, and cellulose is sequentially added and dispersed for 15 min to make it uniformly dispersed; after the dispersing agent, pigment and filler, and defoaming agent are sequentially added, high-speed dispersion is performed for 30 min at 1000-1200 rpm

[0105] Second step: reduce the dispersion speed, 800-1000 rpm, add film forming aid, antifreeze, emulsion, bactericide, fungicide in sequence, stir for 10 min, and prepare the base paint for storage.

[0106] Third step: adjust the color of the above base paint according to requirements, and prepare the colorant. If it is water-in-sand, adjust the color after adding sand.

[0107] Granulation intermediate preparation steps:

[0108] Add the formula amount of RO water into the dispersion cylinder, first add the borate glue coupling agent to dissolve for 30 min, then add defoaming agent, wetting agent, inorganic magnesium lithium silicate protective glue solution, modified silica sol liquid in sequence, stir at 300-500 rpm for 10 min, and prepare for storage.

[0109] Film forming emulsion paint preparation steps:

[0110] Add the formula amount of RO water and various emulsions into the dispersion cylinder, add pH regulator, bactericide, defoaming agent, antifreeze, film forming aid and PAC-LV solution in sequence during stirring, stir at 500-800 rpm, finally add thickening agent, slowly increase the dispersion speed to 900-1200 rpm, and stir at uniform speed for 10 min. After detecting the viscosity, store for standby use.

[0111] Example 1

[0112] Mix the base paint colorant ①, granulation intermediate and weather-resistant film forming emulsion paint ① according to the mass ratio of 9:4.5:4.5 to obtain the water-in-water floor multi-color coating.

[0113] Preparation method of the environment-friendly multi-color floor: on a cement concrete ground, i.e. base 1, a layer of emulsion type interface agent is coated, dried; on the emulsion type interface agent layer 2, a layer of cement is coated, the cement is selected from self-leveling cement layer or polymer decorative cement, dried; on the cement layer 3, a layer of water-based epoxy penetrating primer is coated, dried; on the water-based epoxy penetrating primer layer 4, a layer of high-strength colored primer prepared by the present application is coated, dried; on the high-strength colored primer layer 5, a layer of water-based floor multi-color coating prepared by the present embodiment is coated, dried; on the water-based floor multi-color coating 6, a layer of wear-resistant and stain-resistant water-based polyurethane finish paint is coated, dried, and the environment-friendly multi-color floor is prepared.

[0114] Example 2

[0115] Mix the base paint colorant ①, granulation intermediate and weather-resistant film forming emulsion paint ② according to the mass ratio of 9:4.5:4.5 to obtain the water-in-water floor multi-color coating.

[0116] The environment-friendly multi-color floor prepared by the present embodiment is as shown in Example 1.

[0117] Example 3

[0118] The base paint colorant ①, the granulation intermediate and the weather-resistant film-forming emulsion paint ③ were mixed in a mass ratio of 9:4.5:4.5 to obtain a water-in-water floor multi-color paint.

[0119] The environmentally friendly multi-color floor prepared in this example was as shown in Example 1.

[0120] Example 4

[0121] The base paint colorant ②, the granulation intermediate and the weather-resistant film-forming emulsion paint ① were mixed in a mass ratio of 9:4.5:4.5 to obtain a water-in-water floor multi-color paint.

[0122] The environmentally friendly multi-color floor prepared in this example was as shown in Example 1.

[0123] Example 5

[0124] The base paint colorant ②, the granulation intermediate and the weather-resistant film-forming emulsion paint ② were mixed in a mass ratio of 9:4.5:4.5 to obtain a water-in-water floor multi-color paint.

[0125] The environmentally friendly multi-color floor prepared in this example was as shown in Example 1.

[0126] Example 6

[0127] The base paint colorant ②, the granulation intermediate and the weather-resistant film-forming emulsion paint ③ were mixed in a mass ratio of 9:4.5:4.5 to obtain a water-in-water floor multi-color paint.

[0128] The environmentally friendly multi-color floor prepared in this example was as shown in Example 1.

[0129] Example 7

[0130] The base paint colorant ③, the granulation intermediate and the weather-resistant film-forming emulsion paint ① were mixed in a mass ratio of 9:4.5:4.5 to obtain a water-in-water floor multi-color paint.

[0131] The environmentally friendly multi-color floor prepared in this example was as shown in Example 1.

[0132] Example 8

[0133] The base paint colorant ③, the granulation intermediate and the weather-resistant film-forming emulsion paint ② were mixed in a mass ratio of 9:4.5:4.5 to obtain a water-in-water floor multi-color paint.

[0134] The environmentally friendly multi-color floor prepared in this example was as shown in Example 1.

[0135] Example 9

[0136] The base paint colorant ③, the granulation intermediate and the weather-resistant film-forming emulsion paint ③ are mixed in a mass ratio of 9:4.5:4.5 to obtain a water-in-water floor multi-color coating.

[0137] The environmentally friendly multi-color floor prepared in this example is as shown in Example 1.

[0138] Example 10

[0139] The base paint colorant ④, the granulation intermediate and the weather-resistant film-forming emulsion paint ④ are mixed in a mass ratio of 10:5:5 to obtain a water-in-sand floor multi-color coating.

[0140] The environmentally friendly multi-color floor prepared in this example is as shown in Example 1.

[0141] Example 11

[0142] The base paint colorant ④, the granulation intermediate and the weather-resistant film-forming emulsion paint ⑤ are mixed in a mass ratio of 10:5:5 to obtain a water-in-sand floor multi-color coating.

[0143] The environmentally friendly multi-color floor prepared in this example is as shown in Example 1.

[0144] Example 12

[0145] The base paint colorant ④, the granulation intermediate and the weather-resistant film-forming emulsion paint ⑥ are mixed in a mass ratio of 10:5:5 to obtain a water-in-sand floor multi-color coating.

[0146] The environmentally friendly multi-color floor prepared in this example is as shown in Example 1.

[0147] Example 13

[0148] The base paint colorant ⑤, the granulation intermediate and the weather-resistant film-forming emulsion paint ④ are mixed in a mass ratio of 10:5:5 to obtain a water-in-sand floor multi-color coating.

[0149] The environmentally friendly multi-color floor prepared in this example is as shown in Example 1.

[0150] Example 14

[0151] The base paint colorant ⑤, the granulation intermediate and the weather-resistant film-forming emulsion paint ⑤ are mixed in a mass ratio of 10:5:5 to obtain a water-in-sand floor multi-color coating.

[0152] The environmentally friendly multi-color floor prepared in this example is as shown in Example 1.

[0153] Example 15

[0154] The base paint colorant ⑤, the granulation intermediate and the weather-resistant film-forming emulsion paint ⑥ are mixed in a mass ratio of 10:5:5 to obtain a water-in-sand floor multi-color coating.

[0155] The environmentally friendly multi-color floor prepared in this example is as shown in Example 1.

[0156] Example 16

[0157] The base paint colorant ⑥, granulation intermediate and weather-resistant film-forming emulsion paint ④ are mixed in a mass ratio of 10:5:5 to obtain a water-sand floor multi-color coating.

[0158] The environmentally friendly multi-color floor prepared in this example is as shown in Example 1.

[0159] Example 17

[0160] The base paint colorant ⑥, granulation intermediate and weather-resistant film-forming emulsion paint ⑤ are mixed in a mass ratio of 10:5:5 to obtain a water-sand floor multi-color coating.

[0161] The environmentally friendly multi-color floor prepared in this example is as shown in Example 1.

[0162] Example 18

[0163] The base paint colorant ⑥, granulation intermediate and weather-resistant film-forming emulsion paint ⑥ are mixed in a mass ratio of 10:5:5 to obtain a water-sand floor multi-color coating.

[0164] The environmentally friendly multi-color floor prepared in this example is as shown in Example 1.

[0165] Table 1 orthogonal test results of water-water floor multi-color coatings prepared in Examples 1-9

[0166]

[0167]

[0168] Table 2 orthogonal test results of water-sand floor multi-color coatings prepared in Examples 10-18

[0169]

[0170]

[0171] According to the above test results, the following formula selection is made for the floor multi-color:

[0172] I. Selection of base paint colorant: Although the water-water floor multi-color coating can select the formula of base paint colorant ②, considering the simplification of the warehouse, standardization of production and reliability of performance, the conventional water-water floor multi-color coating base paint colorant selects the formula of base paint colorant ③. If there is a water-sand order requirement, on the basis of the formula of base paint colorant ③, half of the mass of base paint colorant ③ is added to 200 mesh white natural sand to stir evenly to convert into the formula of base paint colorant ⑤, which is the water-sand base paint colorant formula.

[0173] II. Selection of film-forming latex paint: considering that laboratory tests must have a margin to obtain reliability when expanding from production and engineering tests to market-oriented large-scale applications, the water-in-water floor multi-color paint selects the formula of film-forming latex paint ③; the water-in-sand film-forming latex paint selects the formula of film-forming latex paint ⑥

[0174] III. The floor multi-color paint is manufactured according to the above formula, and is used for engineering tests for half a year in the office, laboratory, warehouse, production workshop, outdoor sidewalk and motorway of the inventor's office, laboratory, warehouse, production workshop, factory area, and the four application occasions of office, laboratory, warehouse and outdoor sidewalk all obtain satisfactory results, no wear and tear, no obvious pollution and dirt phenomenon, no obvious discoloration and powdering and loss of luster phenomenon, no stain adhesion after indoor mopping, no fouling and dust accumulation, cleanliness and adjacent ceramic tile floor are comparable. The production workshop has local mechanical damage (being bruised) and obvious forklift wear phenomenon, and the outdoor motorway also has wear phenomenon, and the water-in-sand wear exceeds the water-in-water.

[0175] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments. However, any simple modification, equivalent change and modification of the above embodiments made according to the technical essence of the present application without departing from the technical solution content of the present application still belongs to the protection scope of the present application.

Claims

1. An environmentally friendly, multi-colored flooring, characterized in that, The coating consists of an emulsion-type interface agent layer, a cement layer, a water-based epoxy penetrating primer layer, a high-strength colored primer layer, a water-based multicolor floor coating layer, and a topcoat layer, which are applied sequentially to the substrate. The cement layer is a self-leveling cement layer or a polymer decorative cement layer; The primer layer comprises a water-based epoxy penetrating primer layer and a high-strength colored primer layer applied sequentially; the water-based epoxy penetrating primer layer is applied on top of the cement layer; The topcoat layer is a wear-resistant and stain-resistant water-based polyurethane topcoat; The high-strength colored primer comprises the following components in parts by weight: 45-50 parts styrene-acrylic emulsion, 15-18 parts RO water, 0.1-0.2 parts conventional hydroxyethyl cellulose, 0.1-0.2 parts wetting and dispersing agent, 20-25 parts pigments and fillers, 0.1-0.2 parts defoamer, 4-5 parts film-forming aid, 1.5-2 parts antifreeze, 0.2-0.4 parts bactericide, 0.1-0.3 parts leveling agent, and 0.1-0.3 parts thickener.

2. The environmentally friendly multi-colored flooring according to claim 1, characterized in that: The styrene-acrylic emulsion is a styrene-acrylic emulsion with a glass transition temperature greater than 70°C; The conventional hydroxyethyl cellulose is 250 HBR; The wetting and dispersing agent is a hydrophobic copolymer sodium salt dispersant; The pigments and fillers mentioned are one or more of cast stone powder, mica powder, talc powder, quartz powder or rutile titanium dioxide; The defoamer is a modified polysiloxane and / or an organosilicon-modified mineral oil; The film-forming aid is a dodecyl alcohol ester; The antifreeze agent is propylene glycol; The bactericide is a nitrogen-sulfur heterocyclic compound that does not contain volatile organic compounds; The leveling agent is a polyurethane leveling agent that provides high shear viscosity; The thickener is a hydrophobically modified alkali-swellable thickener that provides medium to low shear viscosity.

3. The environmentally friendly multi-colored flooring according to claim 2, characterized in that, The preparation method of the high-strength colored primer includes the following steps: According to the formula, styrene-acrylic emulsion and RO water are mixed together, and then conventional hydroxyethyl cellulose is added. After being dispersed evenly, wetting and dispersing agent, pigments and fillers and defoamer are added in sequence, and dispersed evenly again. Then the dispersion speed is reduced, and film-forming aid, antifreeze agent, bactericide, leveling agent and thickener are added in sequence. After being dispersed evenly, the color is adjusted to obtain a high-strength colored primer.

4. The environmentally friendly multi-colored flooring according to claim 1, characterized in that, The water-based multicolor floor coating includes base paint pigments for color matching, granulation intermediates for reaction forming and isolation protection, and film-forming latex paint that imparts film-forming properties to the coating. The aforementioned multi-color floor coatings include water-in-water multi-color floor coatings and water-in-sand multi-color floor coatings; The base paint colorant of the water-in-water floor multicolor coating is mixed with natural sand at a mass ratio of 100:(50-100) to obtain the base paint colorant of the water-in-sand floor multicolor coating. The mass ratio of base paint pigment, granulation intermediate and latex paint in the water-in-water floor multicolor coating is 9:(4-5):(4-5); The mass ratio of base paint pigment, granulation intermediate and latex paint in the water-based sand floor multicolor coating is 10:(4-6):(4-6).

5. The environmentally friendly multi-colored flooring according to claim 4, characterized in that: The base paint pigment of the water-in-water multicolor floor coating comprises the following components by weight: 35-50 parts RO water, 2 parts special reactive cellulose, 0.5 parts conventional hydroxyethyl cellulose, 0.1-0.3 parts wetting and dispersing agent, 10-15 parts pigments and fillers, 0.1-0.3 parts defoamer, 2-3 parts film-forming aid, 30-40 parts high-hardness emulsion, 0.6-1.2 parts antifreeze, 0.2-0.4 parts bactericide, and 0.1-0.3 parts mildew inhibitor, as well as color paste; The granulation intermediate comprises the following components by weight: 60-70 parts RO water, 1-2 parts borate crosslinking agent, 0.1-0.2 parts defoamer, 0.1-0.2 parts wetting agent, 5-10 parts inorganic magnesium lithium silicate protective colloid solution, and 15-20 parts coupling agent modified silica sol. The film-forming latex paint comprises the following components by weight: 8-32 parts RO water, 40-60 parts high-hardness emulsion, 10-20 parts reactive emulsion, 0.5-0.8 parts pH adjuster, 0.1-0.3 parts bactericide, 0.1-0.2 parts defoamer, 3-4 parts film-forming aid, 0.8-1.5 parts antifreeze, 0-3 parts bentonite powder material, 3-6 parts PAC-LV solution, and 0-2 parts thickener.

6. The environmentally friendly multi-colored flooring according to claim 1, characterized in that, The wear-resistant and stain-resistant waterborne polyurethane topcoat comprises component A and component B in a mass ratio of 5:

1. By weight, component A comprises: 60-70 parts polyurethane emulsion, 25-30 parts RO water, 0.1-0.2 parts defoamer, 0.1-0.3 parts wetting agent, 0.1-0.2 parts adhesion promoter, 0.1-0.2 parts AMP-95, 0.1-0.2 parts bactericide, 2-4 parts ethylene glycol monobutyl ether, 0.5-0.8 parts anti-blocking agent, 1-2 parts wax emulsion, 0.1-0.3 parts 8699 thickener, and 0.1-0.2 parts 8299 thickener; The B component includes a curing agent.

7. The environmentally friendly multi-colored flooring according to claim 6, characterized in that, The preparation method of the wear-resistant and stain-resistant water-based polyurethane topcoat includes the following steps: Preparation of Component A: According to the formula ratio, add RO water and polyurethane emulsion to the dispersion tank. During the stirring process, add defoamer, wetting agent, adhesion promoter, AMP-95, bactericide, ethylene glycol monobutyl ether, anti-blocking agent and wax emulsion in sequence. After stirring evenly, add 8699 thickener and 8299 thickener, increase the stirring speed, and stir evenly to obtain Component A. Component B is mixed into component A and stirred evenly to obtain a wear-resistant and stain-resistant water-based polyurethane topcoat.

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