KR102243728B1 - Flooring composition with multi-functions of lyphophilic and hydrophilic properties and construction method of concrete flooring using the same - Google Patents

Abstract

The present invention relates to a technology that can protect and reinforce a concrete floor by a shortened process. In the present invention, by constructing a floor of a concrete structure using a floor reinforcement having a multi-function of lipophilic and hydrophilic properties, the floor can be applied to places that require stable resistance to movement of heavy objects or high shock and vibration, places requiring high hygiene and high resistance to freezing and thawing, and the like, and moreover, at the same time, the floor has excellent durability and weather resistance and does not require a separate base agent (primer) application process. According to the present invention, it is possible to exhibit a more stable ultra-high strength function by increasing uniformity and water tightness thereof.

Description

Flooring composition with multi-functions of lyphophilic and hydrophilic properties and construction method of concrete flooring using the same}

The present invention relates to a concrete floor reinforcement construction method using an oil-based and water-based positive multi-function floor reinforcement composition and, more specifically, a floor of a concrete structure using a multi-functional floor reinforcement of oil- and water-based positive. As a result, it can be applied to places requiring stable resistance to movement of heavy objects, high shock and vibration, places requiring high hygiene, places requiring high resistance to freezing and thawing, and also has excellent durability and weather resistance. Since the main material can be directly applied without the process of applying a base material (primer), it relates to a technology that can protect and reinforce concrete floors through a shortened process.

As a floor finishing material that can improve the environmental structure while reinforcing the concrete floor surface, a construction method using chemical resins is applied, and among the chemical resins, epoxy resins with excellent physical properties are mostly used. When looking at the concrete floor construction method using such an epoxy resin, there are a coating method, a lining method, and a resin mortar method. Among these methods, the resin mortar method has excellent mechanical properties and can be applied to many parts as it can give a reflective composition, but its effectiveness is limited due to adhesion to the concrete base surface, complicated construction procedures, and poor finish conditions. Is shown. In particular, in the case of floor construction in a production plant, problems such as decrease in productivity and quality may occur because production must be stopped for a long time for construction work.

Therefore, in the floor construction work, treatment by a rapid process has been urgently required. In order to meet these demands, some products with improved performance have been developed, and representatively imported products such as eucrete, teacrete, tancrete, and overcrete are mentioned.

The imported product is a product using foamable polyurethane, which is eco-friendly and has the advantage that a rapid process is possible without a separate primer process.

In addition, the foamable polyurethane is a very low viscosity type, has self-leveling properties, and a hydration reaction including curing acceleration occurs at the same time, making it a fast-setting type and has elasticity.

However, since the product has an elastic structure due to foaming, the crosslinking density is low, and it is easily damaged by abrasion and stamping, and functional properties such as intensive impact by heavy objects or resistance to chemicals and heat are poor. In addition, the working time is not easy because the pot life is as short as 5 to 10 minutes at 20°C, and accordingly, there is a problem that the construction range is limited to a small scale mainly around the damaged area, and the use is also greatly limited.

Conventional floor construction methods using epoxy resin have mainly used coating method, lining method, resin mortar method, and the like. The three-step process takes about 60 hours at 20℃, and in the case of the resin mortar method, it takes about 100 hours or more at 20℃ even if continuous work is performed in accordance with the curing time in 6-7 steps. there was.

In particular, production plants are diversifying in line with the trend of the times requiring cutting-edge functions and high-quality production, and in response to such diversification, the function of factory flooring is emerging as a very important factor in the production environment. To briefly look at the characteristics of each application required for the floor material of a production facility, first, in the electric and electronic fields, a cleaning room, as well as a horizontal surface with high antistatic and smoothness, is required, and in the food and meat processing fields, in addition to mechanical properties such as impact strength and tensile strength. It is required to have seismic resistance, antibacterial function that no harmful bacteria can inhabit, and particularly, an antibacterial function that satisfies the international quality standard sanitation system (HASSP). In addition, high-strength mechanical properties and chemical resistance are required in fields such as steel making, nuclear power, heavy equipment, generators, chemicals, and various machinery. In the case of the electric and electronic fields, a lining product having self-leveling properties and conductivity is preferred, and thus it is satisfied to some extent with existing products, but it provides high-strength functions such as heavy equipment, food, meat processing, and pharmaceuticals, as well as a sanitary system and stability of work. In the renovation work of the floor in the required field, there is a problem that the function cannot be satisfied with the existing construction method, and rapid construction is not possible.

Therefore, it is necessary to solve and supplement these side effects and problems in concrete floor construction using existing floor reinforcement materials.

<prior art literature>

1. Korean Patent Registration No. 10-0956752

2. Korean Patent Registration No. 10-1003409

3. Korean Patent Registration No. 10-1421264

4. Korean Patent Registration No. 10-0831591

The present invention was developed to improve the situation of the prior art as described above, and by applying a newly developed floor reinforcement to the repair and construction of concrete flooring, the disadvantages of the existing floor reinforcement are solved, and in particular, heat resistance, durability and chemical resistance, etc. It is to provide a technology that can improve the applicability as a flooring material (flooring material) by reinforcing the properties of the material.

In order to achieve the above problems, one embodiment of the present invention

(a) 30 to 60% by weight of bisphenol A epoxy resin or bisphenol F epoxy resin having an epoxy equivalent of 160 to 340 g/eq;

(b) 0.1 to 20% by weight of a mixture of gallic acid and styrene butadiene rubber latex;

(c) 0.1 to 1.2% by weight of ceramic polymer nanocomposite

(d) 1 to 5% by weight of an additive selected from the group consisting of an antifoaming agent, a dispersing agent, a leveling agent, a surface tension reducing agent, a surface fluidity regulator, an antibacterial agent, and a mixture thereof;

(e) 0.1-10% by weight of a mixture of carboxymethylcellulose and silane;

(f) 7 to 30% by weight of a filler selected from the group consisting of silicon dioxide (SiO2), barium sulfate (BaSO4), aluminum oxide (Al2O3), calcium carbonate (CaCO3), talc, silica sol, and mixtures thereof ;

(g) 10 to 20% by weight of a diluent selected from the group consisting of dodecylphenol, benzyl alcohol, formic acid, isopropanol, Styrenated Phenol, and mixtures thereof; and

It comprises an amine-based curing agent (B), and the mixing weight ratio of the main material (A) and the curing agent (B) is 1 to 5: 1 to provide a two-pack type solvent-free epoxy floor reinforcement composition, characterized in that.

In one embodiment of the present invention, the curing agent (B) is

Polyamine, isophorone diamine (IPDA), MXDA (meta-xylene diamine), and bisphenol A epoxy resin with an epoxy equivalent of 160 to 340 g/eq were adducted to react, cooled, and vacuum deodorized under reduced pressure to remove free amines. 80 to 95% by weight of the resin mixture; 2 to 10% by weight of 2,4,6-tris(dimethylaminomethyl)phenol; And 2 to 10% by weight of a non-reactive diluent selected from the group consisting of benzyl alcohol, dodecyl phenol, and Styrenated Phenol;

15 to 40% by weight of polyoxypropylenediamine; 5-30% by weight of Mannich-Base curing agent; 17-30% by weight of IPDA (Isophorone diamine) mixture; 7-20% by weight of 2,4,6-tris(dimethylaminomethyl)phenol; And a curing agent (B) ii comprising 15 to 30% by weight of a non-reactive diluent selected from the group consisting of benzyl alcohol, dodecyl phenol, and Styrenated Phenol.

In addition, in one embodiment of the present invention, the composition is characterized in that the thickness is 0.1 ~ 1.0mm when performing the coating.

In addition, in one embodiment of the present invention, the cooling is characterized in that it is carried out at 0 ~ 70 ℃ after the epoxy resin adduct reaction at 70 ℃ ~ 170 ℃.

In addition, in an embodiment of the present invention, the depressurization is characterized in that it is performed at 40 Torr or less.

In order to achieve the above object, another embodiment of the present invention is

Arranging irregularities or latans on the concrete surface; And

It provides a floor reinforcement protection method for a concrete structure comprising; forming a finishing layer by applying the two-component solvent-free epoxy floor reinforcement composition according to the present invention on the surface with a roller or spray.

The floor reinforcing material composition according to the present invention has an ultra-low viscosity shape and enables smooth compatibility and maintenance of an appropriate slump from mixing with various inorganic materials, cement, crushed stone, silica sand, etc., making it very easy to pour. It can exhibit high strength function.

In addition, since the floor reinforcing material composition according to the present invention is a solvent-free type and can be eco-friendly, and can secure safety in production and on-site installation work, it is excellent in workability.

Therefore, the floor reinforcing material composition according to the present invention has high heat resistance even if it is installed on-site and cured at room temperature when protecting concrete floors to which heavy objects are applied, such as food meat processing, frozen/refrigerated warehouses/factory, places where non-slip is required, etc. Can be secured, and the chemical resistance to chemicals is very high, and yellowing can be reduced by the exothermic reaction between the base resin and the curing component, and the installation work on the concrete surface is easy, so there is no need for a separate primer work process. Since it is possible to directly install the main material in one process, it is possible to quickly process and form a surface with excellent mechanical properties such as strength.

In addition, the floor reinforcing material composition according to the present invention has the advantage of obtaining a high-quality floor surface such as smoothness, gloss, and beauty along with the realization of excellent physical properties, so that quality and texture that cannot be obtained from the existing epoxy floor coating can be obtained. .

In addition, the floor reinforcement composition according to the present invention has a lower surface tension than the conventional solvent-free type paint, so that the uniform coating of the paint is possible with roller workability, and accordingly, it is possible to work the floor reinforcement material of a desired thickness with only one installation and curing. There is also the advantage of shortening the process.

Hereinafter, the present invention will be described in more detail.

The two-component solvent-free epoxy floor reinforcement composition according to the present invention is composed of a main agent (agent A) and a curing agent (agent B), and the subject is (a) bisphenol A epoxy resin or bisphenol F epoxy having an epoxy equivalent of 160 to 340 g/eq. 30-60% by weight of resin;

(b) 0.1 to 20% by weight of a mixture of gallic acid and styrene butadiene rubber latex;

(c) 0.1 to 1.2% by weight of ceramic polymer nanocomposite

(d) 1 to 5% by weight of an additive selected from the group consisting of an antifoaming agent, a dispersing agent, a leveling agent, a surface tension reducing agent, a surface fluidity regulator, an antibacterial agent, and a mixture thereof;

(e) 0.1-10% by weight of a mixture of carboxymethylcellulose and silane;

(f) 7 to 30% by weight of a filler selected from the group consisting of silicon dioxide (SiO2), barium sulfate (BaSO4), aluminum oxide (Al2O3), calcium carbonate (CaCO3), talc, silica sol, and mixtures thereof ;

(g) 10 to 20% by weight of a diluent selected from the group consisting of dodecylphenol, benzyl alcohol, formic acid, isopropanol, Styrenated Phenol, and mixtures thereof.

Hereinafter, each component material constituting the subject component will be described in detail.

[Topic (A)]

(a) epoxy resin

The subject (A) of the present invention may contain 20 to 50% by weight of an epoxy resin. The epoxy resin may have an epoxy equivalent of 160 to 300 g/eq, and the epoxy resin is specifically preferably a bisphenol A epoxy resin or a bisphenol F epoxy resin.

(b) latex mixture

The subject (A) of the present invention may contain 0.1 to 20% by weight of a latex mixture. The latex mixture is preferably a mixture of gallic acid and styrene butadiene rubber latex.

The gallic acid is a phenolcarboxylic acid obtained by acid or alkali hydrolysis of tannin, _{and is a compound having a molecular formula of C 7} H ₆ O _{5 ·} H ₂ O, and has a characteristic of changing its color to dark blue by being combined with a metal component. The gallic acid reacts with rust inside and on the surface of the structure to dissolve the rust and change its color. As the rust reacts, the color changes from white to green or blue, and then to dark blue.

The styrene butadiene rubber latex serves to prevent corrosion of metal components inside and on the surface of the structure, and is in a form dispersed in a solvent, and to increase the effect of gallic acid by dispersing and dissolving the gallic acid in a solution state. Plays a role. As the solvent, an ethylene glycol-based dihydric alcohol may be used.

In the present invention, when the styrene butadiene rubber latex is mixed with gallic acid, the ratio of the styrene butadiene rubber latex: gallic acid is preferably mixed in a ratio of 100:1 to 20.

(c) Ceramic polymer nanocomposite

Ceramic is mainly composed of aluminum and carbon components, and the polymer is composed of an epoxy-based polymer. Specifically, an epoxy resin is mixed with aluminum powder, carbon powder, flame retardant, and sunscreen to form granules. More specifically, 1 to 7 parts by weight of a flame retardant and 1 to 5 parts by weight of a sunscreen agent are added to 100 parts by weight of a mixture of 80 to 90% by weight of an epoxy resin and 0.1 to 20% by weight of aluminum powder and 0.1 to 20% by weight of carbon powder. Mix to form a complex.

Antimony molybdate and molybdenum oxide may be used as the flame retardant used herein, and a diphenyl acrylate-based sunscreen may be used as the sunscreen. In the present invention, the porous polypropylene particles include a flame retardant and a sunscreen agent. As it is included, it plays a role in improving the mechanical performance such as improvement of ignition loss, resistance to salt damage, chemical stability, resistance to fire, strength improvement, and hydration heat reduction.

(d) additive

The subject (A) of the present invention may include an additive selected from the group consisting of an antifoaming agent, a dispersing agent, a cationic wetting agent, a leveling agent, a surface tension reducing agent, a surface fluidity regulator, an antibacterial agent, or a mixture thereof, and the additives are 1 to 5 It may contain weight percent.

Among the additives included in the subject matter, the flame retardant may be any one or a mixture of two or more of antimony molybdate, aluminum hydroxide, molybdenum oxide, and magnesium hydroxide. In particular, aluminum hydroxide (Al(OH) ₃ ) is changed to activated alumina when it reaches 500℃ or higher due to the application of heat, so it has adsorption performance, so it adsorbs harmful substances such as dioxin and hydrogen chloride gas (HCl) generated during combustion and decomposes by heat. It has a cooling effect through endothermic reaction, and it is non-flammable so that it has excellent water and acid resistance, and it is expected to improve the flame retardant effect by using flame retardants together.

(e) carboxymethylcellulose and silane mixture

The mixture of caroboxymethylcellulose and silane contained in the subject A of the present invention serves to increase the adhesion to the adherend and the toughness of the coating while accelerating the curing and drying of the coating while maintaining the pot life. . In the present invention, methyltrimethoxy silane may be used as an example of the silane.

(f) filler

Subject A of the present invention may comprise a filler. The filler is characterized in that the particle diameter is less than 2㎛, silicon dioxide (SiO ₂ ), barium sulfate (BaSO ₄ ), aluminum oxide (Al ₂ O ₃ ), calcium carbonate (CaCO ₃ ), talc, silica sol (colloi Less silica) or mixtures thereof.

(g) diluent

The subject (A) of the present invention may contain 10 to 20% by weight of a diluent selected from the group consisting of dodecylphenol, benzyl alcohol, formic acid, isopropanol, TXIB (Eastman TXIB™), Styrenated Phenol, or mixtures thereof. .

(h) other

In the present invention, the subject (A) may further include a functional filler.

As the functional filler, a mixture of silica powder and expandable graphite may be used.

As the silica powder, one or a mixture of two or more selected from colloidal silica, fumed silica, and micronized silica may be used.

The functional filler serves to increase the physical effect by further increasing the binding effect of the coating composition. In the present invention, the mixing ratio of the silica powder and the expandable graphite is preferably mixed in a weight ratio of 100:50 to 200.

In addition, when using the functional filler, it is possible to use the powder directly, but by treating the surface and coating it with an organosilane, it is possible to increase the durability due to the increase of the binding effect.

That is, the silica powder alone or a mixture of expandable graphite powder may be treated by dispersing a colloidal solution in which a solvent is dispersed in an organic silane, followed by stirring for about 1 to 10 hours. Specifically, about 0.1 to 50 parts by weight of an organic silane is added to the solution based on 100 parts by weight of a silica powder alone or a mixture solution of expandable graphite powder to form an organic group on the surface of the powder particles in the solution and pass through the reactor to dehydration and condensation reactions. Through the organic group to form a surface-treated powder. In this case, the solution is that silica powder or expandable graphite powder is dispersed in a colloidal state in a solvent such as water or alcohol, and it is preferable to contact the organic silane in a colloidal solution state.

Specific examples of the organosilane include dimethyldimethoxysilane, methyltrimethoxysilane, methyltriethoxysilane, and tetraethoxysilane. At this time, treating the powder surface with organic silane is formed by stirring at room temperature for about 1 to 10 hours to form an inorganic substance having an organic group and passing it through a reactor. In this case, the reactor is a heating device, and the temperature is raised to 100 to 300° C. to dehydrate and condensate the inorganic material having a solvent and an organic group formed thereon for 1 to 10 hours to prepare powdery inorganic particles having a surface treatment.

The silica powder and the expandable graphite powder prepared as described above have excellent binding effects because silane is formed on the surface thereof, and thus durability may be further improved.

In the present invention, the functional filler is preferably included in the range of 0.1 to 10 parts by weight based on 100 parts by weight of the subject (A).

[Hardener (B)]

The curing agent of the present invention may be selected and used among curing agents i or ii. It will be described in more detail as follows.

(1) Hardener i

A cured resin mixture from which free amines obtained by adducting reaction with polyamine, isophorone diamine (IPDA), meta-xylene diamine (MXDA), and bisphenol epoxy resin having an epoxy equivalent of 160 to 340 g/eq, cooling, and vacuum deodorization under reduced pressure. 80-95% by weight; 2 to 10% by weight of 2,4,6-tris(dimethylaminomethyl)phenol; And 3 to 10% by weight of at least one non-reactive diluent selected from benzyl alcohol, dodecyl phenol, TXIB (Eastman TXIB™), and Styrenated Phenol.

In the present invention, the cooling may be performed at 70° C. to 170° C. after the epoxy resin reaction, and then at 70° C. or less (for a specific example, 0 to 70° C.), and the decompression is performed at 40 Torr or less (for a specific example, 0 to 40 Torr). Can be.

(2) hardener ii

15 to 40% by weight of polyoxypropylenediamine; 5-30% by weight of Mannich-Base curing agent; 17-30% by weight of IPDA (Isophorone diamine) mixture; 7-20% by weight of 2,4,6-tris(dimethylaminomethyl)phenol; And benzyl alcohol, dodecyl phenol (dodecyl phenol), TXIB (Eastman TXIB™), Styrenated Phenol can be used a curing agent containing 15 to 30% by weight of at least one non-reactive diluent selected from.

The floor reinforcing material composition of the present invention is made by mixing 5 to 7 weight ratio of the main component and 1 weight ratio of the hardener in the field, and it is water resistance, chemical resistance, and in particular neutralization of the concrete structure as a conductor compared to the conventional solvent-free type coating composition. It has excellent prevention, salt damage prevention, and heavy anticorrosive functions, and rapid process processing is possible.

When the floor reinforcement composition is used as described above to be constructed in the field, it is applied to the floor surface of the structure in a thickness of 50 to 1000 µm using a roller, spray, etc. to form a coating layer, and the coated film is water-resistant and durable. It has excellent features such as physical properties.

Hereinafter, a method of preventing rust construction on the surface of a structure using the floor reinforcing material composition according to the present invention will be described in more detail.

The anti-rust construction method of the structure surface according to the present invention comprises the steps of adjusting the structure floor surface or removing the levance, and applying the floor reinforcing material composition of the present invention described above on the surface with a roller or spray to form a coating layer. It characterized in that it comprises the step of.

First, the cleaning process of the structure surface is to remove foreign substances remaining on the structure surface to improve adhesion to the anti-rust paint composition.In order to remove foreign substances such as dust, paint, and salt residues on the structure surface, grinding, The surface is treated by high-pressure water washing, sanding, or shot blasting.

Grinding is a method of smoothing the surface of a structure with high hardness mineral particles, powder, or grinding stone. High-pressure water washing is a method of removing foreign substances on the surface of a structure with high water pressure. Sanding is rubbing with an abrasive to increase the adhesion of the film by removing scratches and smoothing the surface to be painted. Shot blasting is a mechanical method in which the black skin and other deposits are completely removed and treated until the metal is exposed.

In addition, in the process of treating the structure surface, large rust on the surface can be removed by using a spatula or a grinder.

Subsequently, a coating layer may be formed by applying the floor reinforcing material composition according to the present invention on the surface of the structure floor.

The floor reinforcement composition according to the present invention is applied to the structure floor surface using a brush, spray, roller, or the like.

When the floor reinforcing material composition according to the present invention is a thick coating film having a thickness of a certain degree or more, it may be applied twice in succession to form a coating film.

In this case, a certain drying and curing time (curing time) is required between coatings. Drying and curing are carried out for 6 hours in summer and 24 hours in winter.

The floor reinforcing material composition according to the present invention has a characteristic capable of exhibiting rust prevention properties of a certain degree or more without using a separate primer (primer) by itself.

Therefore, the floor reinforcing material composition according to the present invention may be applied directly to the middle and top coats without a primer, and can be completed with only one painting without distinction between the middle and top coats.

However, it is also possible to apply a primer and apply the floor reinforcement composition according to the present invention.

It is preferable to use a primer made of rubber latex as the primer, and it is preferable to use a primer that does not contain an organic solvent.

In the present invention, such a primer is not specifically limited, and may be used without limitation as long as no harmful organic solvent is used.

The floor reinforcement composition according to the present invention may be used when the object is a concrete structure, and may be applied for the purpose of floor reinforcement even in the case of other metal structures.

In particular, when applied to the floor reinforcement and protection of concrete structures, it is excellent in preventing neutralization of concrete structures, and excellent abrasion resistance, so it has excellent effects to extend the life of the structure, and also has excellent chemical performance such as neutralization prevention, salt damage prevention, and heavy anticorrosive functions. Have.

As described above, the floor reinforcing material composition according to the present invention has excellent mechanical properties and can meet the demands of industrial pollution-free and work cleanliness, and is easy to handle, safe in the working environment, no risk of fire, and contaminates the working environment. It is possible to maximize environmentally friendly characteristics such as not letting go.

Hereinafter, the present invention will be described in more detail by examples, but the scope of the present invention is not limited by the examples.

[Example]

In the present invention, by preparing a subject and a curing agent having the configuration shown in Tables 1 to 3 below, a floor reinforcing material composition was prepared.

Subject (A) Kinds ingredient Content (% by weight) Epoxy resin Bisphenol A epoxy resin (epoxy equivalent 160-300 g/eq 38.50 Latex mixture Starylenebutadiene latex and gallic acid mixture 15.5 Ceramic polymer nanocomposite Aluminum epoxy nanocomposite 2.0 additive Silicone-free polymer
(Butadiene copolymer solution) 2.09 Fluorine modified polysiloxane solution 0.31 Polyether modified polymethylalkyl siloxane solution 0.16 Cellulose and silane Carboxymethylcellulose and silane mixture 5.5 Filler Silica sol (colloidal silica) 20.0 diluent Formic acid and isopropanol mixture 15.94

Hardener (B) i ingredient Content (% by weight) Polyamine, isophorone diamine (IPDA), MXDA (meta-xylene diamine), and bisphenol A epoxy resin having an epoxy equivalent of 160 to 340 g/eq were adducted to react, cooled, and vacuum deodorized under reduced pressure to remove free amines. Resin mixture 85.00 2,4,6-tris(dimethylaminomethyl)phenol 10.00 Non-reactive diluent 5.00

Hardener (B) ii ingredient Content (% by weight) Polyoxyethylenediamine 25.00 Mannich-Base curing agent 15.70 IPDA (Isophorone diamine) mixture 24.00 2,4,6-tris(dimethylaminomethyl)phenol 13.50 Non-reactive diluent (Dodecyl phenol) 10.00 Non-reactive diluent (Benzyl Alcohol) 11.80

In this regard, the main material and the hardener were mixed in the following ratios, and a coating work was performed on the floor surface of the concrete structure.

Main hardener type and mixing ratio Example 1 A: B i = 4: 1 Example 2 A: B i = 5.5: 1 Example 3 A: B ii = 6: 1 Example 4 A: B ii = 6.5: 1

Performance evaluation

As a result of coating the concrete structure floor surface with a roller using a floor reinforcing material composition having the composition of Examples 1 to 4, it was confirmed that the thickness of the coating film was 1000 µm or less in Examples 2 to 4 except for Example 1. , It was confirmed that it has excellent physical properties and surface area quality. That is, it was confirmed that the required thickness can be satisfied with only one painting.

In addition, as a result of evaluating the corrosion resistance using the ASML B117 method, it was confirmed that there was no abnormality.

Therefore, it is expected that the required physical properties can be satisfied without a separate primer.

In addition, it was confirmed that there was no odor generated from organic solvents or the like during painting, and no odor peculiar to epoxy was generated.

In addition, when applied to a concrete structure, the floor reinforcing material composition according to the present invention is excellent in preventing neutralization of the concrete structure, has excellent abrasion resistance, so it has excellent effect of extending the life of the structure, and has chemical performance such as neutralization prevention, salt damage prevention, and heavy corrosion protection This is excellent, and it is expected to be able to see the effect of maintenance reduction through excellent flame retardancy and durability.

Claims (7)

(a) 30 to 60% by weight of bisphenol A epoxy resin or bisphenol F epoxy resin having an epoxy equivalent of 160 to 340 g/eq;
(b) 0.1 to 20% by weight of a mixture of gallic acid and styrene butadiene rubber latex;
(c) 0.1 to 1.2% by weight of ceramic polymer nanocomposite
(d) 1 to 5% by weight of an additive selected from the group consisting of an antifoaming agent, a dispersing agent, a leveling agent, a surface tension reducing agent, a surface fluidity regulator, an antibacterial agent, and a mixture thereof;
(e) 0.1-10% by weight of a mixture of carboxymethylcellulose and silane;
(f) 7 to 30% by weight of a filler selected from the group consisting of silicon dioxide (SiO2), barium sulfate (BaSO4), aluminum oxide (Al2O3), calcium carbonate (CaCO3), talc, silica sol, and mixtures thereof ;
(g) 10 to 20% by weight of a diluent selected from the group consisting of dodecylphenol, benzyl alcohol, formic acid, isopropanol, Styrenated Phenol, and mixtures thereof; and
A two-component solvent-free epoxy floor reinforcement composition comprising an amine-based curing agent (B), and a mixing weight ratio of the main material (A) and the curing agent (B) is 1 to 5: 1, respectively.
The method according to claim 1, wherein the curing agent (B) is
Polyamine, isophorone diamine (IPDA), MXDA (meta-xylene diamine), and bisphenol A epoxy resin with an epoxy equivalent of 160 to 340 g/eq were adducted to react, cooled, and vacuum deodorized under reduced pressure to remove free amines. 80 to 95% by weight of the resin mixture; 2 to 10% by weight of 2,4,6-tris(dimethylaminomethyl)phenol; And 2 to 10% by weight of a non-reactive diluent selected from the group consisting of benzyl alcohol, dodecyl phenol, and Styrenated Phenol;
15 to 40% by weight of polyoxypropylenediamine; 5-30% by weight of Mannich-Base curing agent; 17-30% by weight of IPDA (Isophorone diamine) mixture; 7-20% by weight of 2,4,6-tris(dimethylaminomethyl)phenol; And a curing agent (B) ii comprising 15 to 30% by weight of a non-reactive diluent selected from the group consisting of benzyl alcohol, dodecyl phenol, and Styrenated Phenol. Composition.
The method according to claim 2, wherein the composition is a two-component solvent-free epoxy floor reinforcement composition, characterized in that the thickness is 0.1 ~ 1.0mm when performing the coating.
The two-component solvent-free epoxy floor reinforcement composition according to claim 2, wherein the cooling is performed at 0 to 70°C after the epoxy resin adduct reaction at 70°C to 170°C.
The two-component solvent-free epoxy floor reinforcement composition according to claim 2, wherein the depressurization is performed at 40 Torr or less.
Arranging irregularities or latans on the concrete surface; And
Forming a finishing layer by applying the two-component solvent-free epoxy floor reinforcement composition according to claim 1 on the surface with a roller or spray; a floor reinforcement protection method of a concrete structure comprising.
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