KR102576376B1 - Solvent-free polyurethane crete material for paving and paving method using the same - Google Patents

Abstract

The purpose of the present invention is to relate to a solvent-free polyurethane crete flooring agent that generates almost no substances harmful to the human body and has multi-functional properties that maximize the generation of far-infrared rays and negative ions as well as antibacterial function. As the first subject, Plasticizer, triethylene glycol (TEG), castor oil, surfactant, distilled water (H ₂ O), antibacterial agent as a first additive, anion powder as a second additive, and tourmaline as a third additive were mixed to produce the first subject (11). ) is mixed, and as the first hardener resin 12, a polyurethane-based hardener resin is used, and as the first powder, calcium oxide, quartz (silicon oxide), hydraulic cement, 'silica sand #3 - 5', and The first powder (13) is mixed by mixing an antibacterial agent as the first additive, anion powder as the second additive, and tourmaline as the third additive, and mix the base material (11) and the hardener (12) at a ratio of 0.7 to 1.5: 1. It is characterized by mixing the primary mixture of the base material (11) and the hardener (12) and the first powder (13) at a weight ratio of 1:5 to 7.

Description

Solvent-free polyurethane crete flooring agent with antibacterial and multifunctional properties and floor construction method using the same {SOLVENT-FREE POLYURETHANE CRETE MATERIAL FOR PAVING AND PAVING METHOD USING THE SAME}

The present invention relates to a solvent-free polyurethane crete flooring agent and a floor construction method using the same. More specifically, it relates to a solvent-free polyurethane crete flooring agent having multifunctional properties such as antibacterial and a floor construction method using the same.

In general, concrete has good compressive strength, acid resistance, alkali resistance, chemical resistance, and UV resistance, but as the period of use passes, its strength decreases due to substances containing impurities such as acids/alkali and organic substances. Microcracks that occur irregularly during curing, poor workmanship on joints, and cracks caused by external forces cause water leaks. If corrosion worsens, even buried rebars are corroded, severely deteriorating the durability of the structure, thereby severely reducing the durability of the concrete structure. There is a problem that impairs functionality.

Accordingly, various methods are known for waterproofing and/or protecting concrete by applying a resin material such as urethane to the concrete surface to form a protective film.

As polyurethane crete flooring using such urethane, Republic of Korea Patent Publication No. 10-2008-0107640 (Eco-friendly flooring consisting of polyurethane-based concrete three-component base and hardener powder), Patent Registration No. 10-2374512 (Contains eco-friendly polyurethane synthetic resin) Concrete flooring with excellent flame retardancy, slip resistance, and noise blocking function and construction method using the same), Patent registration No. 10-2430671 (Solvent-free water-based organic/inorganic composite flooring composition and construction method for building indoor and outdoor floors using the same), Patent registration No. Several polyurethane crete flooring materials are disclosed, such as No. 10-2537216 (Water-soluble epoxy crete and floor construction method using the same).

However, in the case of the above conventional technologies, the focus is mainly on strengthening functions such as weather resistance, chemical resistance, strength, waterproofing, and affinity with concrete, and although some are aimed at eco-friendliness, they are simply solvent-free and do not affect the human body. It only has a passive meaning of reducing the generation of harmful substances, and is still insufficient to achieve more active effects such as antibacterial properties, far-infrared rays, and negative ion effects.

Republic of Korea Patent Publication No. 10-2008-0107640 (Eco-friendly flooring agent composed of polyurethane-based concrete three-component base and hardener powder) Republic of Korea Patent Registration No. 10-2374512 (Concrete flooring material containing eco-friendly polyurethane synthetic resin with excellent flame retardancy, slip resistance, and noise blocking function, and construction method using the same) Republic of Korea Patent Registration No. 10-2430671 (Solvent-free water-based organic/inorganic composite flooring composition and construction method for indoor and outdoor flooring of buildings using the same) Republic of Korea Patent Registration No. 10-2537216 (Water-soluble epoxy crete and floor construction method using the same)

The present invention is intended to solve the above problems, and its purpose is to create a solvent-free polyurethane crete that generates almost no substances harmful to the human body and has multi-functional properties that maximize the amount of far-infrared rays and negative ions generated as well as antibacterial function. The purpose is to provide a flooring agent and a floor construction method using the same.

For indoor and outdoor interior flooring, multifunctionality (for example, negative ion emission 200 ION/cc, far-infrared emissivity 0.882 (5 - 20 ㎛), radiant energy 3.55 Developed an eco-friendly, multi-functional, solvent-free polyurethane concrete flooring agent that introduces a new concept that can satisfy customers by having many functions that simultaneously provide raw material characteristics of 99.99%)) against 4 strains of Pseudomonas aeruginosa, Staphylococcus aeruginosa, and Pneumococcus. I want to do it, but there is a purpose.

A solvent-free polyurethane crete flooring agent with antibacterial and multifunctional properties according to an aspect of the present invention to achieve the above object includes, as a first subject, 10 to 30 parts by weight of a plasticizer; 5 to 20 parts by weight of triethylene glycol (TEG) as a solvent; 10 to 30 parts by weight of castor oil as a lubricant; 1 to 10 parts by weight of surfactant; 10 to 30 parts by weight of distilled water (H ₂ O); And 1 to 10 parts by weight of an antibacterial agent as a first additive, 1 to 10 parts by weight of anion powder as a second additive, and 1 to 10 parts by weight of tourmaline as a third additive are mixed to form the first main agent (11). The content of the first to third additives is 8 parts by weight or more based on 100 parts by weight of the total content of the subject, and as the first curing agent resin 12, a polyurethane-based curing agent resin is used, and as the first powder, the first filler 1 to 30 parts by weight of calcium oxide; 30 to 70 parts by weight of quartz (silicon oxide) as a second filler; 10 to 40 parts by weight of hydraulic cement as the third filler; 1 to 10 parts by weight of 'silica sand #3 - 5' as the fourth filler; And 1 to 10 parts by weight of an antibacterial agent as a first additive, 1 to 10 parts by weight of anion powder as a second additive, and 1 to 10 parts by weight of tourmaline as a third additive are mixed to form the first powder (13). The content of the first to third additives is 8 parts by weight or more based on 100 parts by weight of the total powder content, and the main agent (11) and the hardener (12) are first mixed at a ratio of 0.7 to 1.5: 1, and then the main agent (11) is mixed again. It is characterized by mixing the primary mixture of and hardener 12 with the first powder 13 at a weight ratio of 1:5 to 7.

Preferably, diisocyanodiphenylmethane is used as the first curing agent resin 12.

Also preferably, 0.1 to 10 parts by weight of an antifoaming agent, 0.1 to 10 parts by weight of a leveling agent, and 1 to 10 parts by weight of a pigment are added for a total amount of 100 parts by weight of the first base material 11.

Also preferably, the plasticizer used in the first base material 11 is 22 to 25 parts by weight, the solvent is 8 to 10 parts by weight, the lubricant is 21 to 25 parts by weight, and the surfactant is 4 to 6 parts by weight, the distilled water (H ₂ O) is 25 to 27 parts by weight, the first to third additives are each 2.5 to 5 parts by weight, and the content of the first to third additives is the total amount of the subject. It is 8 to 18 parts by weight based on 100 parts by weight, the first filler used in the first powder 13 is 10 to 15 parts by weight, the second filler is 40 to 50 parts by weight, and the third filler is 26 to 30 parts by weight, the fourth filler is 5 to 7 parts by weight, the first to third additives are each 2.5 to 5 parts by weight, and the content of the first to third additives is 100 parts by weight of the total powder. It is characterized in that it is 8 to 18 parts by weight.

Also preferably, the first base material, the first curing agent, and the first powder are mixed at a weight ratio of 1:1:6.

On the other hand, the floor construction method using a solvent-free polyurethane crete flooring agent with antibacterial and multifunctional properties according to another aspect of the present invention to achieve the above object is (a) the area where the solvent-free polyurethane crete flooring agent is to be applied; Surveying the work area including area and shape and selecting the construction area (S100); (b) removing foreign substances from the construction site selected in step (a) (S200); (c) After step (b), quick-drying primer formulation and quick-drying primer treatment are performed, and a step of applying a quick-drying primer in which a second base material and a second hardener are mixed at a weight ratio of 1.5 to 2.5: 1 (S300); and (d) after step (c), when the quick-drying primer is dried, the solvent-free polyurethane crete flooring agent is mixed and applied to the area to be installed (S400); It is characterized by including.

The solvent-free polyurethane crete flooring agent with antibacterial and multifunctional properties according to the present invention has an anion emission of 200 ION/cc, a far-infrared emissivity of 0.882 (5 - 20 ㎛), and a radiant energy of 3.55 x 10² (W/㎡·㎛, 40℃). Provision of a solvent-free polyurethane concrete flooring agent with eco-friendly multi-functionality that introduces a new concept that can satisfy customers by having many functions including 99.99% antibacterial activity against 4 strains of Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aeruginosa, and pneumonia group. This has become possible.

In addition to the above object, other objects and advantages of the present invention will become apparent through a detailed description of the embodiment with reference to the attached drawings.

Figure 1 is a diagram showing the process of mixing raw materials for a solvent-free polyurethane crete flooring agent according to one aspect of the present invention.
Figure 2 is a diagram showing the quick-drying primer raw material mixing process according to one aspect of the present invention.
Figure 3 is a flow chart of a solvent-free epoxy floor construction method using a solvent-free polyurethane concrete flooring agent according to another aspect of the present invention.
Figure 4a is a test report for an antibacterial test of the solvent-free polyurethane crete flooring agent of the present invention.
Figures 4b to 4e are actual photos of the antibacterial test of Figure 4a.
Figure 5 is a test report for an anion release test of the solvent-free polyurethane crete flooring agent of the present invention.
Figure 6a is a test report for a far-infrared radiation test of the solvent-free polyurethane crete flooring agent of the present invention.
FIGS. 6B and 6C are radiation energy graphs for the far-infrared radiation test of FIG. 6A.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to FIGS. 1 to 6C.

Figure 1 is a diagram showing the process of mixing raw materials for a solvent-free polyurethane crete flooring agent according to one aspect of the present invention, Figure 2 is a diagram showing the mixing process of quick-drying primer raw materials according to one aspect of the present invention, and Figure 3 is a diagram showing the mixing process of raw materials for a non-solvent type polyurethane crete flooring agent according to an aspect of the present invention. This is a flow chart of a solvent-free epoxy floor construction method using a solvent-free polyurethane crete flooring agent regarding another aspect.

Figure 4a is a test report for an antibacterial test of the solvent-free polyurethane crete flooring agent of the present invention, Figures 4b to 4e are actual photos of the antibacterial test of Figure 4a, and Figure 5 is a solvent-free polyurethane crete flooring agent of the present invention. This is a test report for the anion emission test of the flooring agent, and Figure 6a is a test report for the far-infrared radiation test of the solvent-free polyurethane crete flooring agent of the present invention, and Figures 6b and 6c are the radiation energy for the far-infrared radiation test of Figure 6a. It's a graph.

In describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description will be omitted. In addition, preferred embodiments of the present invention will be described below, but the technical idea of the present invention is not limited or restricted thereto, and of course, it can be modified and implemented in various ways by those skilled in the art.

(Raw material mixing for solvent-free polyurethane crete flooring)

First, as shown in FIG. 1, the solvent-free polyurethane crete flooring agent 14 according to one aspect of the present invention includes the solvent-free polyurethane crete base material 11, a hardener 12, and powder 13, which will be described later. ) is mixed in advance, the base material (11) and the hardener (12) are first mixed at a ratio of 0.7 to 1.5: 1 just before construction, and then the primary mixture of the base material (11) and the hardener (12) and the powder (13) are mixed in advance. ) is prepared by mixing the base material (11), the hardener (12), and the powder (13) at a weight ratio of 1:5 to 7 (preferably by mixing the base material (11), the hardener (12), and the powder (13) at a weight ratio of 1:1:6), resulting in a solvent-free polyurethane crete. The formulation of the first base material (11) used in flooring agents is as follows.

① Preparation of resin components (first main formulation)

Eco-friendly plasticizer (for example, 'GL 300' in [Table 2], hereinafter the same) 10 to 30 parts by weight (preferably, 17 to 27 parts by weight, more preferably, 22 to 25 parts by weight, most preferably is, 24 parts by weight); 5 to 20 parts by weight of triethylene glycol (TEG) as a solvent (preferably, 7 to 15 parts by weight, more preferably, 8 to 10 parts by weight, and most preferably, 9 parts by weight); As a lubricant for the purpose of imparting a coating effect to the powder described later and mixing it well, 10 to 30 parts by weight of castor oil (preferably, 17 to 27 parts by weight, more preferably, 21 to 25 parts by weight, the most Preferably, 22 parts by weight); 1 to 10 parts by weight of a surfactant (for example, 'NP-1020') (preferably, 3 to 8 parts by weight, more preferably, 4 to 6 parts by weight, and most preferably, 5 parts by weight); 10 to 30 parts by weight of distilled water (H ₂ O) (preferably, 20 to 29 parts by weight, more preferably, 25 to 27 parts by weight, and most preferably, 26 parts by weight); and 1 to 10 parts by weight of an antibacterial agent as a first additive (preferably, 2 to 7 parts by weight, more preferably, 2.5 to 5 parts by weight, and most preferably, 3 parts by weight), and an anion powder as a second additive. 1 to 10 parts by weight (preferably 2 to 7 parts by weight, more preferably 2.5 to 5 parts by weight, most preferably 3 parts by weight), and 1 to 10 parts by weight of tourmaline (preferably) as a third additive. Preferably, 2 to 7 parts by weight, more preferably, 2.5 to 5 parts by weight, and most preferably, 3 parts by weight) are mixed to form the first main ingredient (11).

In the first subject, if the content of the first to third additives is too low (less than 8 parts by weight based on 100 parts by weight of the total amount of the subject), it is not preferable because the antibacterial, anion and far-infrared radiation functions are not sufficiently exerted, Conversely, if the content of the first to third additives is too high (if it exceeds 18 parts by weight, based on 100 parts by weight of the total amount of the subject matter), there is a problem with adhesion.

Moreover, a small amount of defoaming agent and leveling agent are added as other additives to improve leveling by not only removing foam but also slightly reducing surface tension and slightly increasing surface slippage. As an example, 'Korean Novco' Co., Ltd.'s 'SNdeformer399') 0.1 to 10 parts by weight (preferably, 0.3 to 0.8 parts by weight, more preferably, 0.4 to 0.6 parts by weight, most preferably 0.5 parts by weight), leveling agent (for example, , 'SN400L') 0.1 to 10 parts by weight (preferably, 0.3 to 0.8 parts by weight, more preferably, 0.4 to 0.6 parts by weight, and most preferably 0.5 parts by weight) is preferably added.

Additionally, an appropriate amount of pigment may be added, for example, 1 to 10 parts by weight per A-jigang, which is a white pigment (preferably, 2 to 7 parts by weight, more preferably, 3 to 5 parts by weight, most preferably , 4 parts by weight) may be added.

Meanwhile, the formulation of the first curing agent 12 to be mixed with the first main agent is as follows.

② Preparation of curing agent component (first curing agent)

A polyurethane-based curing agent resin is used as the main ingredient of the first curing agent 12. For example, diisocyanodiphenylmethane may be used alone or in combination with other curing accelerators or diluents.

In addition, also in the first curing agent, the first to third additives are each used in an amount of 1 to 10 parts by weight (preferably, 2 to 7 parts by weight, more preferably, 2.5 to 5 parts by weight, most preferably , 3 parts by weight), that is, in the first curing agent, the content of the first to third additives may be 8 to 18 parts by weight based on 100 parts by weight of the total amount of the curing agent.

On the other hand, the formulation of the first powder (13) to be mixed with the first base material is as follows.

③ Manufacturing of powder ingredients (1st powder)

1 to 30 parts by weight of calcium oxide as the first filler (preferably, 5 to 20 parts by weight, more preferably, 10 to 15 parts by weight, and most preferably, 12 parts by weight); 30 to 70 parts by weight of quartz (silicon oxide) as a second filler (preferably, 35 to 60 parts by weight, more preferably, 40 to 50 parts by weight, and most preferably, 45 parts by weight); 10 to 40 parts by weight of hydraulic cement as the third filler (preferably, 20 to 35 parts by weight, more preferably, 26 to 30 parts by weight, and most preferably, 28 parts by weight); As the fourth filler, 1 to 10 parts by weight of 'silica sand #3-5' (preferably, 3 to 8 parts by weight, more preferably, 5 to 7 parts by weight, and most preferably, 6 parts by weight); and 1 to 10 parts by weight of an antibacterial agent as a first additive (preferably, 2 to 7 parts by weight, more preferably, 2.5 to 5 parts by weight, and most preferably, 3 parts by weight), and an anion powder as a second additive. 1 to 10 parts by weight (preferably 2 to 7 parts by weight, more preferably 2.5 to 5 parts by weight, most preferably 3 parts by weight), and 1 to 10 parts by weight of tourmaline (preferably) as a third additive. Preferably, 2 to 7 parts by weight, more preferably, 2.5 to 5 parts by weight, and most preferably, 3 parts by weight) are mixed to form the first powder (13).

In the first powder, if the content of the first to third additives is too low (less than 8 parts by weight, based on 100 parts by weight of the total amount of the subject matter), the antibacterial and anion and far-infrared radiation functions are not sufficiently exerted, which is not desirable. Conversely, if the content of the first to third additives is too high (if it exceeds 18 parts by weight based on 100 parts by weight of the total amount of the subject matter), there will be problems with adhesion in the future.

The most preferred example of the inorganic antibacterial agent, which is the next core antibacterial agent in the components of the present invention, is at least one of SiO ₂ , Al ₂ O ₃ , Ag ₂ O, ZnO, etc. (preferably is a metal oxide (including at least Ag ₂ O and ZnO) or a chemical composition thereof.

As described above, preferred exemplary product names of each component of the first main agent and the first curing agent are illustrated in the examples in [Table 2].

(mixture of raw materials for quick-drying primer as solvent-free polyurethane crete flooring agent)

On the other hand, before applying the solvent-free polyurethane crete flooring agent (14), a quick-drying primer (23) for pretreatment is applied to the construction site. The quick-drying primer may be an existing primer, but is preferably used. The following second base material (21) and second curing agent (22) are mixed in advance, and the second base material (21) and second curing agent (22) are mixed in a ratio of 1.5 to 2.5: 1 before applying the primer. Preferably, it is prepared by mixing 2:1, and an exemplary formulation of the second base material 21 used in the quick-drying primer is as follows.

① Second topic combination

70 parts by weight of a first epoxy resin (e.g., YD-011) having an epoxy resin equivalent weight (EEW) of 400 to 500, 10 parts by weight of a first solvent (e.g., IPA), and 10 parts by weight of a second solvent (e.g., B-C) Mix 17 parts by weight with 3 parts by weight of an additive (for example, SILANE) so that the solid content is 50 to 60% (preferably about 55%) and the viscosity is 600 to 700 CPS.

In addition, an exemplary formulation of the second curing agent 22 mixed with the second main agent 21 is as follows.

② Production of second hardener

33 parts by weight of a third curing agent resin (e.g. G-0432) having an active hydrogen equivalent weight (A.H.E.W) of 70 to 80, and a second curing accelerator (e.g. K-64) having an active hydrogen equivalent weight (A.H.E.W) of 10 to 20 2 parts by weight, 4 parts by weight of the first solvent (e.g., IPA), 8 parts by weight of the second solvent (e.g., B - C), and 3 parts by weight of the third solvent (e.g., Ethanol) are mixed to obtain a solid content of 45 ~ It is 55% (preferably about 50%) and is mixed so that the viscosity is 150 to 200 CPS.

(Floor construction method using non-solvent polyurethane crete flooring)

Now, a floor construction method using a solvent-free polyurethane crete flooring agent with antibacterial properties and multifunctional properties according to another aspect of the present invention will be described in detail with reference to FIG. 3.

First, the work area, such as the area and shape of the area where the solvent-free polyurethane crete flooring agent according to the present invention is to be applied, is surveyed, and the construction site is selected (S100). At this time, if a solvent-free polyurethane concrete floor is to be applied to a newly constructed concrete area, the concrete must be sufficiently cured (when placing new concrete, it must be cured for at least 30 days at 20°C).

Afterwards, to improve adhesion, foreign substances from the area to be applied are removed. Oil, moisture, dirt, dust, coating film, and other foreign substances from the surface to be coated are completely removed (S200). If necessary, planing, grinding, blasting, etc. Create a clean surface by removing surface contaminants using chipping and diamond wheel grinders, and completely remove sand that has not adhered to the surface, laitance on the upper layer of concrete, and other impurities using spars, wire brushes, sandpaper, etc. This should increase the adhesion with the epoxy resin. Existing floors must be cleaned of any mold release agents that interfere with adhesion, such as contaminated oil or grease, using a dedicated cleaner. After this, the primer and topcoat work must be done cleanly, and the surface to be coated must be sufficiently dried.

The construction surface is cleaned using vacuum shot blasting, grit blasting, drum sander, ultra-high pressure water basting, etc. to remove cement laitance and weak surface layer.

Broken concrete on the construction surface must be removed, and cracks, voids, and depressions must be filled with appropriate repair materials. If the construction surface is humid, it must be dried using a heat gun, etc., as well as the temperature of the construction surface. The temperature must be maintained above the dew point during construction.

If there is a risk of condensation due to insufficient curing, construction should not be performed. If the concrete is corroded, aged, or has severe irregularities, construction should be performed after mortar repair.

Construction joints are installed in places where they intersect with other materials, are subject to thermal influence, where vibration occurs, and around plinths. The construction joints and ends are grooved with V or U-cutting, and the width and depth are determined by construction. Make it at least twice the thickness (minimum 5mm).

If the concrete surface is not mechanically treated or the surface treatment is weak, defects such as lack of adhesion or peeling of the paint film may occur, so be careful.

Afterwards, the quick-drying primer mixing and quick-drying primer treatment are performed. For example, the second base material and the second hardener are placed in a base bucket at a weight ratio of 2:1, stirred with a mixer to ensure good mixing, and then treated with a quick-drying primer. For use in the work, mix the quick-drying primer sufficiently with the second base material and the second hardener at a weight ratio of 2:1 on the surface to be applied, and apply it thinly using a brush, roller, or spray to prevent the primer from pooling on the base material. Apply as much as possible to ensure sufficient absorption (S300). When applying a single coat, additional primer must be applied to areas where the surface is highly absorbed (areas where the color is reduced to the base color).

At this time, in the primer treatment step (S300), after the background treatment is completed, the dust on the surface is completely removed using a dust collector, and then the primer work is performed. The primer must sufficiently penetrate into the substrate, and if an excessive film is formed on the substrate, poor adhesion occurs. This can happen, so be careful. If the concrete base is porous and a sufficient film cannot be formed with one primer treatment, it is recommended to apply the primer three times evenly using a brush or roller (the amount of epoxy primer required per application is 0.3 kg/㎡). is desirable).

Using a metal trowel, apply the mixed solution evenly to a thickness of approximately 100% on the construction surface, and fill in any irregularities or depressions on the construction surface during construction. After construction, cure at 20℃ for approximately 15 hours.

However, the primer application step (S300) is not an essential step, and the plastering step (S400) of the solvent-free polyurethane crete floor agent (14) mixture according to the present invention may be proceeded immediately without primer application.

Subsequently, after at least 24 hours have elapsed at 20°C after the primer work, when the quick-drying primer is completely dried, all contaminants on the coating film are removed, and the plastering step ( S400) will proceed.

The first base material (11) and the first curing agent (12) of the present invention are first mixed at a ratio of 1:1, and then the primary mixture and the first powder (13) are mixed at a weight ratio of 1:6 to produce a solvent-free poly. The urethane crete flooring agent (14) is mixed secondarily, and the secondly mixed plaster is applied to the area to be applied (S400). It is poured on top of the primer work and then applied using a lacquer or spatula to a film thickness of less than 3 mm. do. After completion of work, check curing at 20℃ for more than 36 hours.

First, to describe the mixing method in more detail, ① Pour 10 kg of the base material into a mixing container, pour 10 kg of the hardener, and mix well for 30 seconds. ② While mixing, gradually add 60kg of powder and mix for about 2 minutes to ensure that the ingredients are uniformly mixed without lumps. ③ At this time, any material stuck in the mixing container is scraped off using an iron trowel or spatula to be mixed. ④ Mixing time varies depending on temperature, but can be increased or decreased by 1 to 2 minutes based on the standard mixing time. ⑤ The material temperature is preferably 15 - 25 ℃, and if it is lower than that, problems with constructability may occur. ⑥ An electric stirrer is recommended, and a speed of about 100 rpm is appropriate. ⑦ The reaction rate varies depending on the temperature of the mixture. If the temperature is low, the reaction rate is slow and curing is delayed. If the temperature is high, the reaction rate is fast and the pot life is shortened, so caution is required. ⑧ After mixing is completed, construction should be carried out as soon as possible. In other words, since the pot life is short, it must be quickly transported to the application site and painted.

Pot life depending on temperature is as follows: 30 minutes at 10°C, 20 minutes at 20°C, 10 minutes at 30°C.

Continuing to describe the mixture plastering step in more detail, pour the mixed solution onto the surface to be used and spread it evenly to the required thickness using a trowel, toothed squeegee, rubber leg, etc. If possible, apply overlapping layers before the flow time of the previously applied area ends. After construction, immediately use a spike roller to remove entrained air and smooth the surface. Spike rollers do not dissolve in solvents or thinners, so they must be physically removed.

The air temperature is preferably 3 - 30 ℃, the indoor floor surface temperature is preferably 35 ℃ or less, the relative humidity is preferably 80% or less, and the concrete moisture content is 6% or less.

After applying with a trowel, steel saw, etc., use a spike roller to remove air bubbles in the coating film.

Finally, after the inspection step (S500), the shipping step is performed (S600).

Regarding the solvent-free polyurethane crete flooring product according to the present invention, other matters to note are as follows.

The product of the present invention requires caution as its construction quality may vary depending on the usage conditions. The appropriate air temperature is 10 - 30°C, and the maximum humidity is 85% or less, and the construction surface is wet or is not sufficiently cured. It is recommended not to be applied to concrete surfaces, and not to be applied to surfaces such as asphalt, bituminous floors, tile surfaces, bricks with many pores, magnesite, aluminum, elastic waterproofing surfaces, and FRP composites. Also, it is recommended not to apply to base materials that do not differ by more than 3℃ from the dew point temperature, and do not apply if the surface has cracks or other damage or is unclean. There may be differences in color depending on the production batch, so it is advisable not to install it in the same place as products from other batches. As for the lifespan of the product of the present invention, when stored in a sealed state in a dry place without freezing, the base material and hardener are about 1 year, and the powder is about 8 months, so the product must be used as soon as possible upon opening (however, the hardener and powder must be used as soon as possible) hardened lumps may form when opened).

Optimal Example (Example 1)

As the first subject, as shown in [Table 2], 24 parts by weight of an eco-friendly plasticizer ('GL 300' of 'LG Chemical' as shown in [Table 2]); 9 parts by weight of triethylene glycol (TEG) as a solvent; 22 parts by weight of castor oil as a lubricant; 0.5 parts by weight of antifoaming agent ('SNdeformer399' from 'Korea Sannopco Co., Ltd.') and 0.5 part by weight of leveling agent ('SN400L' from 'Korea Sannopco Co., Ltd.'); 5 parts by weight of surfactant ('NP-1020' from 'Ilsim Fine Chemical'); 4 parts by weight of white pigment ‘A-glycosaccharide’; 26 parts by weight of distilled water (H ₂ O); And as a first additive, 3 parts by weight of an antibacterial agent from 'Geumyang Material Industry Co., Ltd.' as shown in [Table 1], and as a second additive, 3 parts by weight of anion powder from 'Geumyang Material Industry Co., Ltd.' and a third additive. 3 parts by weight of tourmaline from Geumyang Material Industry Co., Ltd.; Mix to combine the first base material (11).

As the first curing agent 12, as shown in [Table 2], diisocyanodiphenylmethane, a polyurethane-based curing agent resin, was used alone.

As the first powder, as shown in [Table 2], 12 parts by weight of calcium oxide as the first filler; 45 parts by weight of quartz (silicon oxide) as a second filler; 28 parts by weight of hydraulic cement as the third filler; 6 parts by weight of 'silica sand #3 - 5' as the fourth filler; And as a first additive, 3 parts by weight of an antibacterial agent from 'Geumyang Material Industry Co., Ltd.' as shown in [Table 1], and as a second additive, 3 parts by weight of anion powder from 'Geumyang Material Industry Co., Ltd.' and a third additive. 3 parts by weight of tourmaline from Geumyang Material Industry Co., Ltd.; is mixed to form the first powder (13).

Thereafter, the first base material and the first hardener are first mixed at a weight ratio of 1:1, and the hardener is placed in a base container and stirred with a blender until a uniform state is obtained, and the first powder is mixed. At this time, the first powder is mixed. 1 Mix the base material, the first hardener, and the first powder at a weight ratio of 1:1:6 to create a solvent-free polyurethane crete flooring agent (resin).

Example 2

In the main ingredient, the content of the plasticizer is 23 parts by weight, the content of the lubricant is 21.5 parts by weight, the content of the first to third additives is 3.5 parts by weight, and the content of the second filler in the powder is 44 parts by weight, and the content of the second filler is 44 parts by weight. It is the same as Example 1 except that the content of the third filler is 27 parts by weight, the content of the fourth filler is 6.5 parts by weight, and the content of the first to third additives is 3.5 parts by weight.

Example 3

In the main body, the content of the plasticizer is 22.5 parts by weight, the content of the solvent is 8.5 parts by weight, the content of the lubricant is 21 parts by weight, the content of the first to third additives is 4 parts by weight, and the second filler in the powder Example 1, except that the content of the third filler was 27 parts by weight, the fourth filler was 7 parts by weight, and the first to third additives were 4 parts by weight. Same as

Example 4

In the main subject, the content of the plasticizer is 22 parts by weight, the content of the solvent is 8 parts by weight, the content of the lubricant is 21 parts by weight, the content of the distilled water is 25.5 parts by weight, and the content of the first to third additives are each 4.5 parts by weight. In parts, the content of the second filler in the powder is 41.5 parts by weight, the content of the third filler is 26 parts by weight, the content of the fourth filler is 7 parts by weight, and the content of the first to third additives is 4.5 parts by weight, respectively. Except for the omission, it is the same as Example 1 above.

Comparative Example 1

In the main body, the content of the solvent is 12 parts by weight, the content of the lubricant is 26 parts by weight, the content of the distilled water is 28 parts by weight, the content of the first to third additives is 0 parts by weight, and the second filler in the powder Example 1, except that the content of the third filler was 33 parts by weight, the fourth filler was 7 parts by weight, and the first to third additives were 0 parts by weight. Same as (In the above subject, the content of the first to third additives is less than 8 parts by weight - the same applies to other comparative examples below)

Comparative example 2

In the main body, the content of the solvent is 11.5 parts by weight, the content of the lubricant is 25.5 parts by weight, the content of the distilled water is 27.5 parts by weight, the content of the first to third additives is each 0.5 parts by weight, and the second filler in the powder Example 1, except that the content of the third filler is 32 parts by weight, the fourth filler is 7 parts by weight, and the first to third additives are each 0.5 parts by weight. Same as

Comparative Example 3

In the main body, the content of the solvent is 11 parts by weight, the content of the lubricant is 25 parts by weight, the content of the distilled water is 27 parts by weight, the content of the first to third additives is each 1 part by weight, and the second filler in the powder Example 1, except that the content of the third filler was 31 parts by weight, the fourth filler was 7 parts by weight, and the first to third additives were 1 part by weight. Same as

Comparative example 4

In the main body, the content of the solvent is 10.5 parts by weight, the content of the lubricant is 24.5 parts by weight, the content of the distilled water is 26.5 parts by weight, the content of the first to third additives is 1.5 parts by weight, and the second filler in the powder Example 1, except that the content of the third filler was 30 parts by weight, the fourth filler was 7 parts by weight, and the first to third additives were 1.5 parts by weight. Same as

Comparative Example 5

In the main ingredient, the content of the solvent is 10 parts by weight, the content of the lubricant is 24 parts by weight, the content of the first to third additives is 2 parts by weight, and the content of the second filler in the powder is 46 parts by weight, and the content of the second filler is 46 parts by weight. It is the same as Example 1 except that the content of the third filler is 29 parts by weight, the content of the fourth filler is 7 parts by weight, and the content of the first to third additives is each 2 parts by weight.

Comparative Example 6

In the main body, the content of the lubricant is 23.5 parts by weight, the content of the first to third additives is 2.5 parts by weight, and the content of the second filler in the powder is 45.5 parts by weight, and the content of the third filler is 28 parts by weight, It is the same as Example 1 except that the content of the fourth filler is 7 parts by weight and the content of the first to third additives is 2.5 parts by weight.

Experimental Examples 1 to 3

Now, with respect to the solvent-free polyurethane crete flooring agent manufactured in Example 2, the results of direct testing at the 'Korea Far-Infrared Association' (see FIGS. 4A to 6C), and Examples 1, 3, and For the solvent-free polyurethane crete flooring manufactured in Comparative Examples, under the same conditions and method as the test method conducted by the 'Korea Far-Infrared Association' for the solvent-free polyurethane crete flooring manufactured in Example 2, Antibacterial tests, anion release tests, and far-infrared radiation rate and radiation energy tests were conducted on four types of antibacterial agents (Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus, and Pneumococci).

In the optimal example of the present invention (Example 1), all items were evaluated as “optimal conditions,” and in other examples, the decrease in physical properties due to the increase in the amount of inorganic substances was not very significant.

Experimental Example 1

More specifically, in the solvent-free polyurethane crete flooring agents of Examples 1 to 4, the bacterial reduction rate fell below 99.99% after 24 hours, and it was found that the bacteria were almost completely removed, and in other examples as well. The same was true (see FIGS. 4A to 4E for test methods, strains used, and experimental conditions).

In contrast, in the solvent-free polyurethane crete flooring agents of Comparative Examples 1 to 6, as shown at the bottom of [Table 2], it was found that bacteria were not completely removed within 24 hours, and the required physical properties were not met. (In particular, in the case of Comparative Example 1, it was very insufficient).

Experimental Example 2

In addition, in the eco-friendly solvent-free polyurethane crete flooring agent in Example 1, 200 negative ions were measured in a 150 It was found that sufficient anions were measured (see FIG. 5 for test method and experimental conditions).

In comparison, in the solvent-free polyurethane crete flooring agents of Comparative Examples 1 to 6, as shown at the bottom of [Table 2], the number of anions is 64, 72, 85, 93, 96, and 102, respectively. It was found that it was significantly inferior to the solvent-free polyurethane crete flooring agent of the examples, and the required physical properties were found to be significantly insufficient (in particular, in the case of Comparative Example 1, it was very inadequate).

Experimental Example 3

Moreover, in the eco-friendly solvent-free polyurethane crete flooring agent in Example 1, the emissivity of 5-20 ㎛ was 0.882, and the radiant energy was measured to be 3.55 × 10 ² [W/㎡·㎛], which is in accordance with the above Example It was found that sufficient radiant energy was measured in the eco-friendly solvent-free polyurethane crete flooring agents in Examples 1 to 4 (see FIG. 6a for test methods and experimental conditions).

In contrast, in the solvent-free polyurethane crete flooring agents in Comparative Examples 1 to 6, as shown at the bottom of [Table 2], the far-infrared emissivity was 0.388, 0.496, 0.587, 0.668, 0.698, and 0.765, respectively. It was found that it was significantly inferior to the solvent-free polyurethane crete flooring agent in the examples, and the required physical properties were found to be insufficient (especially in the case of Comparative Example 1, it was very inadequate).

Experimental Example 4

For reference, compared to Example 1, it was found that the adhesive strength decreased somewhat as the amount of inorganic additives increased from Example 2 to Example 4. In the case of Examples, the solvent-free polyurethane concrete of Example 1 was found to be slightly lower. It was found that the flooring material was most suitable in all aspects.

In addition, the solvent-free polyurethane crete flooring agent with antibacterial and multifunctional properties according to the present invention and the floor construction method using the same have the following advantages.

1) The product related to the present invention is a three-component type, a hybrid flooring material containing cement powder and aggregate containing eco-friendly water-based urethane and special chemical additives, and has strong chemical resistance and excellent resistance to impact and abrasion. , Creates a uniform and beautiful surface finish after construction.

2) In addition, as an eco-friendly product, it has excellent heat resistance that can withstand high-temperature water or steam cleaning in food factories, etc., and is excellent in resistance to various chemicals in the chemical industry.

3) The number of negative ions released is 200, which is excellent.

4) The far-infrared emissivity is 0.882, so the far-infrared emissivity effect is also excellent.

5) The radiant energy is also 3.55 x 10²[W/㎡·㎛], so the radiant energy effect is also excellent.

6) The antibacterial effect against 4 types of bacteria (E. coli, Pseudomonas aeruginosa, Staphylococcus aureus, and pneumoniae) is also very excellent at 99.99%.

The solvent-free polyurethane crete flooring agent with antibacterial and multifunctional properties according to the present invention and the floor construction method using the same are applicable to the following various industrial fields.

1) Steel interior for drinking water

2) For use inside concrete tanks

3) Water purification plants and food processing plants

4) Inside a basement where moisture exists, etc.

5) Floors of food manufacturing plants, dairy processing breweries, etc.

6) Floors in chemical plants, laboratories, etc.

7) Floors of various internal parking lots, warehouses, etc.

8) Floors in areas affected by extreme heat, etc.

9) Airport floor

10) General parking lot horizontal mortar

11) Rooftop waterproofing materials

Although the present invention has been described above according to an embodiment of the present invention, changes and modifications made by those skilled in the art without departing from the technical spirit of the present invention do not fall within the scope of the present invention. Of course.

11: First subject 12: First curing agent
13: 1st powder
14: Solvent-free polyurethane crete flooring agent
21: Second topic 22: Second hardener
23: Quick-drying primer

Claims (7)

It is a solvent-free polyurethane crete flooring agent with antibacterial and multifunctional properties.
As the first subject, 10 to 30 parts by weight of a plasticizer; 5 to 20 parts by weight of triethylene glycol (TEG) as a solvent; 10 to 30 parts by weight of castor oil as a lubricant; 1 to 10 parts by weight of surfactant; 10 to 30 parts by weight of distilled water (H ₂ O); And 1 to 10 parts by weight of an antibacterial agent as a first additive, 1 to 10 parts by weight of anion powder as a second additive, and 1 to 10 parts by weight of tourmaline as a third additive are mixed to form the first main agent (11). The content of the first to third additives is 8 parts by weight or more based on 100 parts by weight of the total content of the subject matter,
As the first curing agent resin 12, a polyurethane-based curing agent resin is used,
As the first powder, 1 to 30 parts by weight of calcium oxide as the first filler; 30 to 70 parts by weight of quartz (silicon oxide) as a second filler; 10 to 40 parts by weight of hydraulic cement as the third filler; 1 to 10 parts by weight of 'silica sand #3 - 5' as the fourth filler; And 1 to 10 parts by weight of an antibacterial agent as a first additive, 1 to 10 parts by weight of anion powder as a second additive, and 1 to 10 parts by weight of tourmaline as a third additive are mixed to form the first powder (13). The content of the first to third additives is 8 parts by weight or more based on 100 parts by weight of the total powder content,
The base material (11) and the hardener (12) were first mixed at a ratio of 0.7 to 1.5: 1, and then the primary mixture of the base material (11) and the hardener (12) and the first powder (13) were mixed at a ratio of 1: 5 to 7. A solvent-free polyurethane crete flooring agent with antibacterial and multifunctional properties, characterized in that it is mixed at a weight ratio of . According to claim 1,
A solvent-free polyurethane crete flooring agent with antibacterial and multifunctional properties, characterized in that diisocyaniphenylmethane is used as the first hardener resin (12). According to claim 1,
A dance with antibacterial and multifunctional properties, characterized in that 0.1 to 10 parts by weight of an antifoaming agent, 0.1 to 10 parts by weight of a leveling agent, and 1 to 10 parts by weight of a pigment are added for a total amount of 100 parts by weight of the first subject (11). Formulation Polyurethane crete flooring. According to claim 1,
Used in the first main agent 11, the plasticizer is 22 to 25 parts by weight, the solvent is 8 to 10 parts by weight, the lubricant is 21 to 25 parts by weight, and the surfactant is 4 to 6 parts by weight. and the distilled water (H ₂ O) is 25 to 27 parts by weight, the first to third additives are 2.5 to 5 parts by weight, respectively, and the content of the first to third additives is based on 100 parts by weight of the total amount of the subject matter. 8 to 18 parts by weight,
The first filler used in the first powder 13 is 10 to 15 parts by weight, the second filler is 40 to 50 parts by weight, the third filler is 26 to 30 parts by weight, and the fourth filler is 5 to 7 parts by weight, the first to third additives are each 2.5 to 5 parts by weight, and the content of the first to third additives is 8 to 18 parts by weight based on 100 parts by weight of the total amount of powder. A solvent-free polyurethane crete flooring agent with antibacterial and multifunctional properties. According to claim 1,
A solvent-free polyurethane crete flooring agent with antibacterial and multifunctional properties, which is obtained by mixing the first base material, the first hardener, and the first powder at a weight ratio of 1:1:6. According to claim 1,
The antibacterial agent is an inorganic antibacterial agent, and is a solvent-free polyurethane crete with antibacterial and multifunctional properties, characterized in that it is one or more metal oxides selected from the group consisting of SiO ₂ , Al ₂ O ₃ , Ag ₂ O and ZnO, or a chemical composition thereof. Flooring agent. A floor construction method using a non-solvent type polyurethane crete flooring agent having antibacterial and multifunctional properties according to any one of claims 1 to 6, comprising:
(a) surveying the work area, including the area and shape of the area where the solvent-free polyurethane crete flooring agent is to be applied, and selecting the construction area (S100);
(b) removing foreign substances from the construction site selected in step (a) (S200);
(c) After step (b), quick-drying primer formulation and quick-drying primer treatment are performed, and a step of applying a quick-drying primer in which a second base material and a second hardener are mixed at a weight ratio of 1.5 to 2.5: 1 (S300); and
(d) after step (c), when the quick-drying primer is dried, the solvent-free polyurethane crete flooring agent is mixed and applied to the area to be installed (S400);
A solvent-free epoxy floor construction method using a solvent-free polyurethane crete flooring agent with antibacterial and multifunctional properties, comprising: