KR20150115525A - Manufacturing method of color block - Google Patents

Abstract

The present invention relates to a color block and a manufacturing method thereof and, more specifically, to a method for manufacturing a color block and a color block produced therefrom by forming a coating layer on a surface of various blocks such as a concrete block, a concrete boundary stone block, a sidewalk block, a paving block, a clay block, a reinforced soil revetment block, a lawn block, a red clay block, a pottery block, a tile block, a light weight concrete block and a interlocking block or the like.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a color block,

The present invention relates to a color block and a method of manufacturing the same, and more particularly, to a color block and a method of manufacturing the same, and more particularly to a color block and a method of manufacturing the same. A method of manufacturing a color block by forming a coating layer on the surface of various blocks such as a locking block, and a color block manufactured therefrom.

Various prior art documents can be found as a method of manufacturing color blocks. Korean Unexamined Patent Publication No. 1993-7847 (1993.05.20) discloses a method of manufacturing a color concrete in which iron oxide is added at a certain ratio of the amount of unit cement during concrete mixing to express color on the entire concrete laid surface.

Korean Patent Laid-Open No. 1996-37611 (Nov. 19, 1996) discloses a method of mixing a white Portland cement and a pigment in an appropriate ratio so as to be colored in various colors while maintaining the original characteristics of concrete by mixing a coloring admixture in concrete, Thereafter, recycled stone and coarse and fine dolomite aggregate are injected to sufficiently dry the mixture, and the mixture water is added to the mixture to obtain a color concrete. The color concrete is placed on the mold, cured, and demolded. have.

Korean Patent Laid-Open No. 2002-85394 (November 16, 2002) discloses a curing and drying process of a concrete block forming product; Applying a water-soluble polymer resin to the surface of the concrete block forming product; A step of applying mortar mixed with cement, aggregate, pigment and water-soluble polymer resin to the surface of the block coated with the water-soluble polymer resin to form a color mix mixed mortar layer; A method of manufacturing a surface reinforced color concrete block manufactured through a process of applying an ultraviolet curing paint to the color mix mixed mortar layer is disclosed.

In addition, the Korean Registered Patent No. 295017 (Apr. 24, 2001) has excellent adhesion, abrasion resistance and color diversity such as coloring filler such as white cement, color silicon powder and color stone, antifoaming agent, emulsion and acrylic copolymer, A step of applying a colored cement mortar to the concrete surface to which the coloring cement mortar has been applied at a desired thickness once to dry and cure the colored concrete mortar; A method of finishing a concrete surface comprising a step of coating a transparent paint to provide durability by protecting the surface and preventing the surface from being produced is disclosed in Korean Patent No. 291623 (Mar. 13, 2001) , Calcium carbonate powder and an inorganic colorant were mixed and stirred to prepare a mixed mortar, and the prepared mixed mortar and A high strength artificial coloring flooring material produced by mixing and stirring water or a thinner with a synthetic resin of the Foxy type or polyester type with a stirrer and Korean Patent Publication No. 2004-87002 (Oct. 13, 2004) , A calcium carbonate, an ethylene vinyl acetate-vinyl acetate-based redispersible polymer, a polyacrylic redispersible polymer, or a mixture thereof, a silicone-based defoaming agent, a cellulose salt, and a naphthalene-formaldehyde sulfate condensate A polymeric cement mortar composition for repairing or finishing a building.

The conventional color polymer cement mortar composition as described above is generally mixed with an aqueous acrylic resin as a binder used to produce a color on a concrete surface using a mixed mortar, In addition, when mixed with an oil-based epoxy resin and polyester as a binder of mixed mortar, it is necessary to use a large amount of organic solvent and it is difficult to prevent environmental pollution due to its evaporation.

As a general method for manufacturing a conventional color block as described above, a color can be expressed on the entire surface of a block by a method in which a pigment is mixed with a concrete composition in a process of manufacturing a color concrete block, Is not realized close to the primary color of the pigment, and thus there is a limit in producing various colors close to the primary color of the pigment. In addition, there is a problem in that the material cost is increased due to the use of a large amount of relatively high amount of pigment, Provides functions such as soundproofing, waterproofing, condensation, corrosion, heat insulation, anti-slip, abrasion resistance, weather resistance, water resistance, durability, stain resistance and impact resistance which are caused by the presence of porosity on the surface of exposed concrete block. There is a limit.

In addition, when a color concrete block is manufactured by mixing a water-based acrylic resin as a binder used to produce a color on a concrete surface using a mixed mortar, it is a reality that construction can not be performed due to the problem of freezing in the winter season.

Korean Patent Publication No. 1993-7847 (May 05, 1993) Korean Patent Publication No. 1996-37611 (Nov. 19, 1996) Korean Patent Publication No. 2002-85394 (November 16, 2002) Korean Patent No. 295017 (Apr. 24, 2001) Korean Patent No. 291623 (Mar. 14, 2001) Korean Patent Publication No. 2004-87002 (Oct. 13, 2004)

In order to solve the above problems, it is an object of the present invention to provide a method of manufacturing a color block that can be applied even in the winter season, in principle, by solving the problem of freezing and whitening of a winter season and a problem of water resistance.

In addition, the present invention is to use a large amount of organic solvent when producing a color concrete block by mixing an oil-based epoxy resin and polyester as a binder of mixed mortar, and causing environmental pollution due to evaporation thereof. Therefore, mortar, water and organic solvent And a method for manufacturing a color block using the environmentally-friendly liquid-type reactive resin composition.

Further, the present invention provides a method of manufacturing a color block which can solve the problem that an expensive pigment is used excessively by coloring the concrete composition directly by mixing the pigment, and can produce sharp and various colors close to the primary color of the pigment .

The present invention also provides a method for producing a water-repellent, water-repellent, water-repellent, water-resistant, waterproof, Impact resistance and the like, and it solves the problems such as cracking, peeling and whitening of the coating film due to a problem of water resistance, abrasion resistance, durability after drying and delayed drying in the winter season It is an object of the present invention to provide a method of manufacturing a color block.

Further, the present invention can provide a waterproof resin composition which is excellent in soundproofing, waterproofing, condensation, corrosion, heat insulation, insulation, slip resistance, abrasion resistance, weather resistance, stain resistance and impact resistance by coating the concrete block with an environmentally- The present invention also provides a method for manufacturing a color block having excellent water resistance, abrasion resistance, durability, and excellent effect after being dried.

The present invention also relates to a color block which can be applied to a concrete block, a concrete block block, a lead block, a sidewalk block, a clay block, a reinforced earth retaining wall block, a grass block, an ocher block, a ceramic block, a tile block, a lightweight concrete block, And the like.

In order to accomplish the above object, the present invention provides a method of manufacturing a color block comprising a step of mixing and spraying an environmentally reactive two-component liquid type resin composition using a spray gun, coating the surface of the block one or more times, And a method for producing the same.

Further, the present invention is a method of manufacturing a color block, further comprising the step of spraying particles for imparting concavity and convexity to the surface after the application of the environmentally reactive two-component liquid type resin composition or during the application of the environmentally reactive two- .

Further, the present invention relates to a method of manufacturing a color block, further comprising the step of washing the block surface before application of the environmentally friendly reactive liquid type resin composition.

The present invention also relates to a color block manufactured by the above manufacturing method.

More specifically, the present invention relates to a block and a coating layer on the surface thereof,

The block is selected from a concrete block, a concrete block block, a lead block, a sidewalk block, a clay block, a reinforced earth retaining wall block, a grass block, an ocher block, a porcelain block, a tile block, a lightweight concrete block,

The coating layer may be made of an acrylic resin alone or a mixture of an acrylic resin and a binder resin obtained by mixing one or two or more resins selected from a urethane resin, an unsaturated ester resin, an acrylic urethane resin, an acrylic unsaturated ester resin and a urethane unsaturated ester resin, (A) comprising a catalyst, a pigment, a defoaming agent and a wax,

Acrylic resin alone or a binder resin obtained by mixing an acrylic resin with any one or two or more resins selected from a urethane resin, an unsaturated ester resin, an acrylic urethane resin, an acrylic unsaturated ester resin and a urethane unsaturated ester resin and a binder resin comprising a reactive monomer and a curing agent And a second solution is formed by applying an environmentally-responsive two-component resin composition.

The present invention relates to a reactive resin composition which does not use a solvent and forms a coating film uniformly on the surface of a block using a spray gun to provide soundproofing, waterproofing, dew condensation, It has an effect of imparting functions such as internal formula, heat shielding, heat insulation, visibility, abrasion resistance, weather resistance, water resistance, durability, stain resistance and impact resistance.

The present invention has the effect of producing a color close to the primary color of the pigment by mixing and dispersing the pigment in the environmentally-friendly liquid type reactive resin during the manufacturing process of the color block only on the upper part of the block.

In addition, since the environmentally-friendly liquid type reactive resin is sprayed with various particles before being cured, it can produce one or more colors, so that it is possible to reduce the construction cost by one time construction without using a separate finishing material have.

1 is a photograph showing an embodiment of a color block manufactured by the manufacturing method of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited thereto.

One aspect of the method for producing a color block of the present invention includes a step of mixing and spraying an environmentally-responsive two-component liquid resin composition using a spray gun, coating the surface of the block one or more times, and then drying .

The method may further include the step of spraying particles for imparting concavity and convexity to the surface after the application of the environmentally reactive two-component resin composition or during the application of the environmentally reactive two-component resin composition.

Further, the method may further comprise washing the block surface before application of the environmentally responsive two-pack type resin composition.

More specifically, a first aspect of the method of making a color block of the present invention comprises

a) applying the environmentally-responsive two-pack type resin composition to the surface of the block by a mixed spraying method using a spray gun;

b) drying;

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Also, a second aspect of the method of making a color block of the present invention

a) applying the environmentally-responsive two-pack type resin composition to the surface of the block by a mixed spraying method using a spray gun;

b) mixing and spraying the environmentally-responsive two-pack type resin composition using a spray gun to apply a second coating to the surface of the block;

c) drying;

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Also, a third aspect of the method of making a color block of the present invention

a) applying the environmentally-responsive two-pack type resin composition to the surface of the block by a mixed spraying method using a spray gun;

b) spraying particles to impart surface irregularity and color to the surface;

c) drying;

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Further, a fourth aspect of the method of manufacturing the color block of the present invention

a) applying the environmentally-responsive two-pack type resin composition to the surface of the block by a mixed spraying method using a spray gun;

b) spraying particles to impart surface irregularity and color to the surface;

c) mixing and spraying the environmentally-responsive two-component resin composition using a spray gun;

d) drying;

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In addition, in any one of the embodiments selected from the first to fourth aspects, if necessary, the step (a) may further include washing the block surface before application of the environmentally responsive two-component resin composition. At this time, a compressed air injection device may be used to clean the surface. Specifically, compressed air is generated from an air compressor and dry air is passed through the dryer at a pressure of 7 to 20 bar at a height of 20 to 30 cm from the block by using a spray nozzle formed on the column on both sides of the conveyor belt, But is not limited to, blowing off the foreign substances on the block surface.

Next, the environment-friendly reactive liquid type resin composition is mixed and sprayed on the surface of the block by using a spray gun, and the thickness of the hood can be adjusted by applying it once or twice or more. In this case, the spray gun is connected through a hose from the reservoir containing the first liquid and the second liquid, and is sprayed while mixing the first liquid and the second liquid, Specifically, spraying is performed by applying mixed injection by applying a pressure of 40 to 100 bar, so that it can be uniformly applied to the surface. More preferably, the first solution and the second solution are mixed at a temperature of 25 to 28 캜, thereby lowering the viscosity of the composition and controlling the reaction rate more quickly.

Next, the method includes a step of spraying particles for imparting concavity and convexity and color to the environment-responsive two-component resin composition after spraying the green-reactive resin composition as required, or in the middle of spraying. In addition to the color developed by the pigment, So that a beautiful block can be produced. The method of spraying the particles is not particularly limited as long as it is a method used in the field in general, and it is preferable to uniformly spray the particles without aggregation.

Next, the drying step may be performed in a heat chamber having an internal temperature of 30 to 80 DEG C when the liquid type resin composition is a thermosetting resin, and may be cured by drying using a hot air dryer or the like . Or when the environmentally reactive reactive liquid type resin composition is an ultraviolet ray hardening type resin, it may be irradiated with ultraviolet rays of 200 to 2000 mg / m ² to effect curing with drying.

The first to fourth aspects are only for illustrative purposes only and are not intended to limit the scope of the present invention. It is to be appreciated that those skilled in the art can change the application order and the number of times the environmentally- And a step of spraying particles for imparting concavity and convexity and color may be added a plurality of times.

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

The inventors of the present invention have found that the use of a small amount of pigment imparts a beautiful color, is eco-friendly because no solvent is used, has excellent adhesion strength to a block, and has mechanical properties such as tensile strength, elongation, waterproofness, As a result of studies to form this excellent coating layer, it has been found that the environmentally reactive reactive liquid type resin composition is applied to the surface of a block using a spray gun and then dried, thereby satisfying all desired physical properties and shortening the processing time The present inventors have completed the present invention.

Further, it has been found that various colors can be imparted by spraying particles for imparting concavity and convexity and color to the green reactive resin composition after or after application of the liquid-type resin composition.

The environmentally reactive two-component resin composition used herein is a resin composition comprising an acrylic resin alone or a binder obtained by mixing one or two or more resins selected from an acrylic resin and a urethane resin, an unsaturated ester resin, an acrylic urethane resin, an acrylic unsaturated ester resin, and a urethane unsaturated ester resin (A) comprising a resin, a reactive monomer, a reaction catalyst, a pigment, an antifoaming agent and a wax,

Acrylic resin alone or a binder resin obtained by mixing an acrylic resin with any one or two or more resins selected from a urethane resin, an unsaturated ester resin, an acrylic urethane resin, an acrylic unsaturated ester resin and a urethane unsaturated ester resin and a binder resin comprising a reactive monomer and a curing agent And the second solution may be used to satisfy the intended physical properties.

More specifically, the first liquid comprises 5 to 35 wt% of a binder resin, 25 to 80 wt% of a reactive monomer, 0.1 to 10 wt% of a reaction catalyst, 0.1 to 20 wt% of a pigment, 0.01 to 5 wt% of a defoamer, And the second liquid includes, but is not limited to, 5 to 45 wt% of the binder resin, 40 to 80 wt% of the reactive monomer, and 1 to 20 wt% of the curing agent.

Although the first solution and the second solution are not limited, they are preferably used in a ratio of 1: 0.1 to 10 by weight, because they can maintain the fast reactivity of the reactive monomer and obtain excellent mechanical properties of the dried coating film .

In addition, although the first solution and the second solution are not limited, use of a solvent having a viscosity of 20 to 3000 cps at 25 ° C, preferably 100 to 1500 cps, and more preferably 200 to 900 cps, The resin composition can be mixed well and the resin composition spreads well on the block surface so that a uniform film thickness can be obtained.

When the binder resin is used in an amount of less than 5% by weight in the first solution, the bonding density may be low and the drying speed may be slow, resulting in a decrease in productivity. In addition, However, when the amount exceeds 35% by weight, the viscosity of the resin composition may rise and it may be difficult to spray. Therefore, it is preferable to use the above range. The reactive monomer is used in place of a solvent to dissolve the binder resin and react with the binder resin to form a crosslinked material. When the binder resin is used in an amount less than 25% by weight, the binder resin is difficult to dissolve, And when it is used in an amount exceeding 80% by weight, it may be difficult to obtain a uniform coating film property due to a slow drying speed. Therefore, it is preferable to use the above range. When the reaction catalyst is used in an amount of less than 0.1% by weight, the curing rate may be low and the productivity may be lowered. When the amount of the catalyst is more than 10% by weight, the curing rate may become too high, desirable. When the pigment is used in an amount of less than 0.1% by weight, sharpness of color is not exhibited and visibility is deteriorated, so that it may be difficult to produce a primary color. When the pigment is used in an amount exceeding 20% by weight, viscosity of the resin composition is increased, It is preferable to use the above range. The antifoaming agent is used for increasing the dispersion stability. When the amount of the antifoaming agent is less than 0.01% by weight, it may be difficult to suppress the bubbles generated in the film formation process. When the antifoaming agent is used in an amount exceeding 5% by weight, It is preferable to use the above range. The wax is used for achieving uniform surface hardening in the process of forming a film, and it may be difficult to obtain a uniform surface hardening at less than 0.01 wt%, and when using more than 5 wt%, the physical properties of the coating Problems can arise.

If the content of the binder resin in the second solution is less than 5% by weight, the bonding density may be low, resulting in a slow drying rate, which may result in deterioration of the productivity, and may not impart physical properties such as abrasion resistance and weatherability. However, when the amount exceeds 45% by weight, the viscosity of the resin composition may increase and it may be difficult to spray. Therefore, it is preferable to use the above range. When the reactive monomer is used in an amount of less than 40% by weight, it is difficult to dissolve the binder resin, resulting in a problem that the viscosity of the resin composition is increased and it is difficult to spray. When the amount exceeds 80% by weight, It may be difficult to obtain a uniform physical property of the coating film. Therefore, it is preferable to use the above range. When the content of the curing agent is less than 1% by weight, the curing rate is low and the productivity is low. When the curing agent is used in an amount exceeding 20% by weight, the curing rate is too fast and workability and storage stability may be deteriorated.

More specifically, with respect to the binder resin, the binder resin used for the first solution and the second solution may be the same or different.

Firstly, the acrylic resin is preferably an acrylic resin which is selected from the group consisting of methyl (meth) acrylate, ethyl (meth) acrylate, isopropyl (meth) acrylate, butyl (meth) acrylate, (Meth) acrylate, glycidyl (meth) acrylate, vinyl acetate, styrene, (meth) acrylonitrile and alphamethylstyrene, which are homopolymers or copolymers obtained by polymerizing one or more monomers selected from the group consisting of .

The polymerization method can be produced by methods such as suspension polymerization, bulk polymerization, solution polymerization and the like. The acrylic resin thus prepared is not limited, but it is preferable that the acrylic resin having a weight average molecular weight of 50,000 to 450,000 g / mol and a glass transition temperature of 30 to 120 ° C is suitable for application using a spray gun after preparation of the composition The viscosity can be maintained. Further, it is preferable that it is soluble in a reactive monomer and does not undergo layer separation at room temperature.

Next, the urethane resin plays a role of forming a polymer network by reacting a reactive monomer having a hydroxyl group with a urethane bond. The urethane resin may be a polyester polyol, a polyether polyol or a mixture prepared by reacting a mixture of the polyester and the polyether polyol with isocyanate. As the isocyanate, modifications of organic isocyanate compounds such as aromatic isocyanates, aliphatic isocyanates, alicyclic isocyanates and mixtures thereof, or urethane prepolymers may be used.

Specific examples include 2,4-toluene diisocyanate, 2,6-toluene diisocyanate, 4,4-diphenylmethane diisocyanate, 2,4-diphenylmethane isocyanate, 1,5-naphthalene diisocyanate, Xylene diisocyanate, para-phenylene diisocyanate, 3,3-tolylene-4,4-diisocyanate, 3,3-dimethyl-diphenylmethane-4,4-diisocyanate, and an NCO content of 31 to 33% Polymeric methyl diisocyanate, modified methyl diisocyanate having an NCO content of 29 to 30% by weight, and diisocyanate prepolymer having an NCO content of 1 to 25% by weight, and examples of the aliphatic isocyanate include 1,6-hexamethylene diisocyanate Anisate, 1,6-hexamethylene diisocyanate trimer, 1,6-hexamethylene diisocyanate burette, 1,6-hexamethylene diisocyanate allophanate and diisocyanate prepolymer having an NCO content of 1 to 25% by weight Number Cyclohexane diisocyanate, bis (isocyanatomethyl) cyclohexane, tetramethyl xylene diisocyanate, and NCO (diisocyanate). Examples of the alicyclic isocyanate include 4,4-dicyclohexylmethane diisocyanate, isophorone diisocyanate, 1,4- A diisocyanate prepolymer having a content of 1 to 25% by weight, and the like, and one or two or more of them may be used in combination.

The urethane resin is not limited, but a weight average molecular weight of 50,000 to 450,000 g / mol is preferable because it can maintain a viscosity suitable for application using a spray gun after preparation of the composition.

Next, the unsaturated ester resin undergoes addition reaction with a vinyl-based reactive monomer to form a polymer network structure.

The unsaturated ester resin has one or more unsaturations in the molecular structure and is obtained by ester condensation between an unsaturated polybasic acid and a saturated polyhydric alcohol and ester condensation between a saturated polybasic acid and an unsaturated polyhydric alcohol. To 20,000 g / mol, and preferably from 5,000 to 10,000 g / mol, which is soluble in the reactive monomer and does not undergo layer separation at room temperature. If the weight average molecular weight is less than 2,000, the hardness is high and cracking of the coating film may occur at a low temperature. If the weight average molecular weight is 10,000 or more, the solubility in the reactive monomer may be lowered and the workability may be deteriorated.

Next, the acrylic urethane resin reacts with the reactive monomer to form a polymer network structure in a state where the acrylic resin and the urethane resin are combined or mixed.

Next, the acrylic unsaturated resin reacts with the reactive monomer to form a polymer network structure in a state where the acrylic resin and the unsaturated ester are combined or mixed.

Next, the hybrid urethane unsaturated resin functions to form a polymer network structure by condensation reaction with the reactive monomer in a state where the urethane resin and the unsaturated ester are bonded or mixed.

In an embodiment of the present invention, the binder resin may be used alone or in combination with an acrylic resin, and may be any one selected from urethane resins, unsaturated ester resins, acrylic urethane resins, acrylic unsaturated ester resins, and urethane unsaturated ester resins It can be a mixture of two or more. At this time, the mixing ratio of the binder resin is 50 to 99% by weight of the total amount of the binder resin, and one or more selected from urethane resin, unsaturated ester resin, acrylic urethane resin, acrylic unsaturated ester resin and urethane unsaturated ester resin, By weight and 50% by weight, respectively.

More preferably, the use of polymethyl methacrylate having a weight average molecular weight of 50,000 to 450,000 g / mol as an acrylic resin is preferable because of its excellent curing speed, tensile strength, elongation, excellent adhesive strength to concrete, excellent waterproofness, A coating layer can be formed.

The reactive monomers used in the first liquid and the second liquid may be the same or different. The reactive monomer may be an isocyanate-terminated prepolymer containing at least one of an acrylic monomer, an isocyanate compound, an isocyanate reactor in a molecular structure, an amine compound having 2 to 3 kinds of primary amine or secondary amine reactive groups in a molecular structure, One or a mixture of two or more selected from the compounds can be used.

(Meth) acrylate, ethyl (meth) acrylate, isopropyl (meth) acrylate, butyl (meth) acrylate, (Meth) acrylate, hexyl (meth) acrylate, glycidyl (meth) acrylate, vinyl acetate, styrene, (meth) acrylonitrile, alphamethylstyrene, (Meth) acrylate, 4-hydroxybutyl (meth) acrylate, 5-hydroxypentyl (meth) acrylate, 6-hydroxyhexyl Propyleneglycol di (meth) acrylate, 1,3-butylene glycol di (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 1,4-butanediol diacrylate, 1,6-hexanediol di (meta Acrylate, diethylene glycol di (meth) acrylate, dipropylene glycol di (meth) acrylate, triethylene glycol di (meth) acrylate, tetraethylene glycol di (meth) acrylate, polyethylene glycol di (Meth) acrylate, trimethylolpropane tri (meth) acrylate, triallylated propane tri (meth) acrylate, pentaerythritol dimethacrylate, pentaerythritol trimethacrylate, diallyl phthalate, divinylbenzene, 2,4-toluene diisocyanate, 2,6-toluene diisocyanate, 4,4-diphenylmethane diisocyanate, 2,4-diphenylmethane isocyanate, 1,5-naphthalene diisocyanate, , Para-phenylenediisocyanate, 3,3-tolylene-4,4-diisocyanate, 3,3-dimethyl-diphenylmethane-4,4-diisocyanate, (Isocyanatomethyl) cyclohexane, polymeric methyl diisocyanate, modified methyl diisocyanate, tetramethyl xylene diisocyanate, alicyclic amine, low molecular weight poly (isocyanatomethyl) isocyanate, 1,4-cyclohexane diisocyanate, Amide, isophorone diamine, polyoxyalkylene diamine, polyoxyalkylene triamine, polyaspartic ester, NCO-terminated polycarbonate diol modified or polyether polyol modified isophorone diisocyanate (IPDI) prepolymer , Ethylenediamine, 1,2-propanediamine, 1,3-propanediamine, 2-methyl-1,2-propanediamine, 2,2- , 4-butanediamine, 1,3-pentanediamine, 1,5-pentanediamine, 2-methyl-1,5-pentanediamine, 1,6- hexanediamine, 2,5- , 2,2,4-trimethyl-1,6-hexanediamine, 2,4,4-trimethyl-1,6-hexane Amine, 1,7-heptanediamine, 1,8-octanediamine, 1,9-nonanediamine, triammononane, 1,10-decanediamine, 1,11-undecanediamine, 1,12-dodecanediamine , 1-amino-3-aminomethyl-3,5,5-trimethylcyclohexane, 2,4-hexahydrotoluenediamine, 2,6-hexahydrotoluenediamine, 2,4'- Hexylmethane, 4,4'-diamino-dicyclohexylmethane, 3,3'-dimethyl-4,4'-diamino-dicyclohexylmethane, 3,3'-diethyl- Cyclohexane diamine, 1,3-bis (methylamino) -cyclohexane, 1,8-p-menthane diamine, hydrazine, semicarbazone Hydrazide, bis-hydrazide, bis-semi-carbazide, phenylenediamine, 2,4-toluylenediamine, 2,6-toluylenediamine, 2,3-toluylenediamine, 3 , 4-toluylenediamine, 2,4'-diaminodiphenylmethane, 4,4'-diaminodiphenylmethane, (2-amino-ethyl) -amine, guanidine, melamine, N- (2-aminoethyl) amine obtained by the condensation reaction of N, N, N, (4'-aminobenzyl) -aniline, tetramethoxysilane, tetraethoxysilane, tetraethoxysilane, tetraethoxysilane, tetraethoxysilane, But are not limited to, ethoxysilane, methyltrimethoxysilane, vinyltrimethoxysilane, acryloxypropyltrimethoxysilane, diphenyldimethoxysilane, butyltrimethoxysilane, N-octyltriethoxysilane, butyltriethoxysilane, Butoxymethylsilane, octyltriethoxysilane, isobutyltrimethoxysilane, phenyltrimethoxysilane, diphenyldimethoxysilane, isobutyltriethoxysilane, octyltrimethoxysilane, ditrimethoxysilane, butyltriethoxysilane compounds And may be a mixture of any one or two or more selected.

More preferably, the reactive monomer used in the first liquid is methyl methacrylate, butyl acrylate, 2-hydroxyethyl acrylate, trimethylolpropane tri (meth) acrylate, isophorone diisocyanate, NCO content of 1 to 25 A polyether polyol having a weight-average molecular weight of 400 to 10,000 g / mol is used as the polyisocyanate prepolymer, the polyisocyanate prepolymer, the diisocyanate prepolymer, A coating layer excellent in heat insulation and water resistance can be formed.

Particularly, by using a diisocyanate prepolymer having an NCO content of 1 to 25% by weight as a reactive monomer, an urethane bond is formed in the acrylic resin and the polymer chain to increase the elasticity and mechanical properties of the coating film and to form a coating film having excellent physical properties in winter By using a polyaspartic ester, a urethane bond can be introduced into the polymer chain to increase the tensile strength and mechanical strength of the coating film and to control the reaction rate to form a coating film having excellent physical properties even during the winter season. .

As the reaction catalyst in the first solution, any one or a mixture of two or more selected from a tertiary amine compound, an organic cobalt compound, and an organotin compound may be used. More specifically, examples thereof include amine compounds such as tri-n-butylamine, N-ethyl-N-hydroxyethylaniline and N, N-dimethylaniline, N, N-dimethyl-p- Di (2-hydroxypropyl), p-toluidine compounds, cobalt naphthalenate, cobalt octylate, cobalt acetacetate, dibutyl tin dilaurate, dioctyl tin an organic tin compound such as dibutyl tin oxide, an organic titanium compound such as tetrabutyl titanate, an organic compound such as lead naphthenate, lead octylate, etc. An organometallic catalyst such as a lead compound, an organic bismuth compound such as bismuth sincenoate and bismuth octylate, an organic metal catalyst such as triethylene diamine, triethylene amine, tetramethylene diamine diamine, N-methylmorpholine , Tertiary amines such as N, N-dimethyl ethanolamine and dimethyl imidazole may be used, and any one or a mixture of two or more of them may be used.

N, N-dimethyl-p-toluidine is preferably used as a reaction catalyst in order to control the reaction rate and apply the winter season.

The defoaming agent in the first solution may be any one of vegetable oil, animal oil, and silicone oil or a mixture of two or more thereof.

It is more preferable to use a silicone oil having a weight average molecular weight of 200 to 5000 g / mol to improve the dispersion stability of the entire composition and to control the viscosity.

The wax in the first solution may be a mixture of one or more of paraffin wax, silicone wax, polyethylene wax, and polyimide wax.

More preferably, by using a paraffin wax having a weight average molecular weight of 300 to 500 g / mol, the viscosity of the composition is easily controlled, a smooth and uniform coating film can be formed, and coating can be performed even during the winter season.

In the first solution, the pigment may be any one of an inorganic pigment, an organic pigment, and an organic or inorganic composite pigment or a mixture of two or more thereof. And more preferably an inorganic pigment containing iron oxide.

In the second solution, the reactive monomer may be the same as or different from the first solution. More specifically, in the second solution, the reactive monomer may include methyl methacrylate, butyl acrylate, 2-hydroxyethyl acrylate, It is preferable to use any one or a mixture of two or more selected from tri (meth) acrylate and polyether polyol to form a coating film excellent in mechanical properties.

In the second solution, the curing agent may be any one or a mixture of two or more selected from among organic peroxide type cobalt, nickel, manganese, copper, silver and platinum, more preferably an organic peroxide. Specific examples of the organic peroxide system include organic peroxides such as ketone peroxides, diacyl peroxides, hydroperoxides, dialkyl peroxides, peroxytarates, alkyl peresters, cumene hydroperoxides, diisopropyl Benzene hydroperoxide, dibenzoyl peroxide, or a mixture of two or more of them.

The environmentally reactive reactive liquid resin composition of the present invention may further contain plasticizers, ultraviolet absorbers, antistatic agents, scoring agents, thickeners, thixotropic agents, leveling agents, extender pigments, fluorescent pigments, phosphorescent pigments, antimicrobial agents, May be added as needed.

In one embodiment of the present invention, the coating thickness of the environmentally friendly reactive dipping resin composition is preferably 0.1 to 5 mm. When the coating thickness is less than 0.1 mm, it is difficult to conceal the porous uneven surface of the base, so that a uniform coating film surface can not be obtained. When the coating thickness exceeds 5 mm, excess resin composition on the surface of the base is overflowed I can get off.

In one embodiment of the present invention, the grains for imparting unevenness and hue are selected from the group consisting of silica sand, colored silica sand, glass beads, colored glass beads, urethane chips, colored urethane chips, rubber chips, colored rubber chips, acrylic beads, Colored plastic beads, ceramic aggregates, or a mixture of two or more thereof, but is not limited thereto. The average particle diameter of the particles is 0.1 to 5 mm, which is preferable because of its excellent adhesion with the coating layer, but is not limited thereto. The shape of the particles may be chips or beads, but is not limited thereto. The amount of the particles to be sprayed is preferably not more than 10 particles per cm < ^{2 &} gt ;, more specifically 5 to 9 particles per cm < ² >

In addition, one aspect of the present invention relates to a block, and a coating layer on the surface thereof,

The block is selected from a concrete block, a concrete block block, a lead block, a sidewalk block, a clay block, a reinforced earth retaining wall block, a grass block, an ocher block, a porcelain block, a tile block, a lightweight concrete block,

The coating layer may contain one or two or more binder resins selected from an acrylic resin, a urethane resin, an unsaturated ester resin, an acrylic urethane resin, an acrylic unsaturated ester resin and a urethane unsaturated ester resin and a reactive monomer, a reaction catalyst, a pigment, a defoamer and a wax And at least one binder resin selected from the group consisting of an acrylic resin, a urethane resin, an unsaturated ester resin, an acrylic urethane resin, an acrylic unsaturated ester resin and a urethane unsaturated ester resin, and a reactive monomer and a curing agent And a second liquid containing a green liquid resin composition is applied in a thickness of 0.1 to 5 mm to form a color block.

If necessary, the coating layer may be selected from among silica sand, colored silica sand, glass beads, colored glass beads, urethane chips, colored urethane chips, rubber chips, colored rubber chips, acrylic beads, colored acrylic beads, colored plastic beads, and ceramic aggregates And may further include any one or two or more particles.

The coating layer can satisfy physical properties having a tensile strength of 20 to 60 MPa, an elongation of 1 to 15%, a concrete adhesion strength of 1.5 Mpa or more, and a heat insulation property of 0.025 to 0.080 W / mK.

Hereinafter, the present invention will be described in more detail with reference to the following examples. However, the present invention is not limited to the following examples.

The physical properties were measured by the following method.

1. Tensile strength

KS M3006, specimen dumbbell no. 1, aged 7 days * -10 ℃.

2. Elongation

KS M3006, specimen dumbbell no. 1, aged 7 days * -10 ℃.

3. Bond strength of concrete

KS F2476.

Good: Concrete bond strength of 1.5 Mpa or more

Normal: Concrete bond strength less than 1.0 Mpa ~ 1.5 Mpa

Poor: Concrete bond strength less than 1.0 Mpa

4. Waterproof

4 inch concrete block Apply environmentally friendly reactive resin composition 2mm on the other hand and dry it at room temperature for 7 days to make a concrete square structure with width (2m) * length (2m) * height (1m) Seal the material and fill it with 90% water. Cover the top with a transparent acrylic plate and visually observe whether the water seeps out for 6 months.

Good: Internal water maintains 100% of the height of the water surface.

Normal: Internal water is maintained at more than 55% of the height of the water.

Poor: internal water is kept at 10% or more of the height of the water surface.

5. Insulation

The thermal conductivity test was carried out using the flat plate method, which has a relatively small error among the four methods defined by KSL 9016. It is dried with a dry film thickness of 2mm on a night light specimen of size 300mm × 300mm × 2mm, dried for one week under conditions of 25 ° C, and measured on the basis of W / mK measured by Unitherm Thermo Instruments of ANTER.

6. Water Resistance

The coating was formed on the slate plate at a thickness of 2 mm and immersed in water for 168 hours. Visually checking for any abnormalities such as peeling or discoloration.

Good: The degree of peeling of the total area of the applied coating film was 0%

Normal: The degree of peeling of the entire area of the coated film is not more than 10%

Bad: The degree of peeling of the entire area of the applied coating film is 50% or less

[Example 1]

1) Preparation of the first liquid

Aromatic diisocyanate prepolymer having 37% by weight of methyl methacrylate, 8% by weight of butyl acrylate, 13% by weight of 2-hydroxyethyl acrylate, 5% by weight of trimethylolpropane tri (meth) acrylate and 5% , 6 wt% of polyvinyl alcohol (HEPESCEM, VAROCOAT HUB-500F) and 3 wt% of polyaspartic ester (Bayer Material Science, Desmophen NH 1420) were mixed to prepare a reactive monomer mixture.

The prepared reactive monomer mixture was heated to 50 캜 and stirred at 500 rpm while 15% by weight of polymethyl methacrylate (weight average molecular weight 110,000 g / mol) was added and dissolved for 90 minutes. 4% by weight of N, N-dimethyl-p-toluidine, 1% by weight of paraffin wax having a weight average molecular weight of 400 g / mol as a reaction catalyst, 1% by weight of silicone oil type defoaming agent (Evonik Tego Chemie, Tego Foamex 840, a siloxane polyether polyol copolymer) was mixed and dispersed.

After the dispersion was cooled to room temperature, 7 weight% of iron oxide was added as a pigment, and the mixture was sufficiently dispersed by stirring at 1000 rpm for 1 hour with a high-speed stirrer to prepare a first liquid. The viscosity of the first liquid prepared was 250 cps (25 캜).

2) Preparation of the second solution

A reactive monomer mixture prepared by mixing 45 wt% of methyl methacrylate, 10 wt% of butyl acrylate, 13 wt% of 2-hydroxyethyl acrylate and 7 wt% of trimethylolpropane tri (meth) acrylate was heated to 50 캜 While stirring at 500 rpm, 15% by weight of polymethyl methacrylate (weight average molecular weight 110,000 g / mol) was added and dissolved for 90 minutes. After the dispersed mixture was cooled to room temperature, 10% by weight of benzoyl peroxide was added and stirred at 300 rpm for 10 minutes with a stirrer to prepare a second solution. The viscosity of the second liquid prepared was 350 cps (25 캜).

3) Manufacture of color block

The first and second liquids prepared in this liquid injector (Graco Inc. Reactor E-XP1) were put in the respective auxiliary tanks, and the temperature of the stock solution at 27 ° C was maintained. Then, the liquid was transferred to the main tank through the transfer pump, The resin composition of the first and second liquids was transferred to the conveyor through a Fusion MP gun (Graco Inc. Mechanical Purge Guns, GX-7) at a pressure of 80 bar at a weight ratio of 1: 1, To a dry film thickness of 0.8 mm. After 7 minutes of primary application, the resin composition was coated with a dry film thickness of 1.2 mm and dried at 60 ° C for 5 minutes.

[Example 2]

1) Preparation of the first liquid

A reactive monomer mixture prepared from 40% by weight of methyl methacrylate, 24% by weight of 2-hydroxyethyl acrylate and 4% by weight of isophorone diisocyanate was heated to 50 DEG C and stirred at 500 rpm to obtain polymethyl methacrylate Molecular weight: 103,000 g / mol) was added and dissolved for 90 minutes. 5% by weight of N, N-dimethyl-p-toluidine as a reaction catalyst, 1% by weight of a paraffin wax having a weight average molecular weight of 400 g / mol, a silicone oil type defoamer (Evonik Tego Chemie, Tego Foamex 840, a siloxane polyether polyol copolymer) was mixed and dispersed.

After the dispersion was cooled to room temperature, 10 weight% of iron oxide was added as a pigment, and the mixture was sufficiently dispersed by stirring at 1000 rpm for 1 hour with a high-speed stirrer to prepare a first liquid. The viscosity of the first liquid prepared was 300 cps (25 캜).

2) Preparation of the second solution

A reactive monomer mixture prepared from 45 weight% of methyl methacrylate, 13 weight% of 2-hydroxyethyl acrylate and 17 weight% of polyether polyol (weight average molecular weight 3000 g / mol, KPX, GP-3000) And 15 wt% of polymethyl methacrylate (weight average molecular weight: 103,000 g / mol) was added while stirring at 500 rpm, followed by dissolution for 90 minutes. After the molten mixture was cooled to room temperature, 10% by weight of benzoyl peroxide was added and stirred at 300 rpm for 10 minutes with a stirrer to prepare a second solution. The viscosity of the second solution prepared was 400 cps (25 캜).

3) Manufacture of color block

The first and second liquids prepared in this liquid injector (Graco Inc. Reactor E-XP1) were put in the respective auxiliary tanks, and the temperature of the stock solution at 27 ° C was maintained. Then, the liquid was transferred to the main tank through the transfer pump, The resin composition of the first and second liquids was transferred to the conveyor through a Fusion MP gun (Graco Inc. Mechanical Purge Guns, GX-7) at a pressure of 80 bar at a 1/1 weight ratio, To a dry film thickness of 2 mm. After drying for 5 minutes through a 60 ° C drying chamber, the product was evaluated.

[Example 3]

1) Preparation of the first liquid

A reactive monomer mixture prepared from 40% by weight of methyl methacrylate, 15% by weight of 2-hydroxyethyl acrylate, 4% by weight of isophorone diisocyanate and 9% by weight of polyaspartic ester (Bayer Material Science, Desmophen NH 1420) Was heated to 50 캜 and stirred at 500 rpm while 15% by weight of polymethyl methacrylate (weight average molecular weight 110,000 g / mol) was added and dissolved for 90 minutes. 5% by weight of N, N-dimethyl-p-toluidine as a reaction catalyst, 1% by weight of a paraffin wax having a weight average molecular weight of 400 g / mol, a silicone oil type defoamer (Evonik Tego Chemie, Tego Foamex 840, a siloxane polyether polyol copolymer) was mixed and dispersed.

After the dispersion was cooled to room temperature, 10 weight% of iron oxide was added as a pigment, and the mixture was sufficiently dispersed by stirring at 1000 rpm for 1 hour with a high-speed stirrer to prepare a first liquid. The viscosity of the first liquid prepared was 350 cps (25 캜).

2) Preparation of the second solution

A reactive monomer mixture prepared from 45 weight% of methyl methacrylate, 13 weight% of 2-hydroxyethyl acrylate and 17 weight% of polyether polyol (weight average molecular weight 3000 g / mol, KPX, GP-3000) And 15 wt% of polymethylmethacrylate (weight average molecular weight 110,000 g / mol) was added while stirring at 500 rpm, followed by dissolution for 90 minutes. After the molten mixture was cooled to room temperature, 10% by weight of benzoyl peroxide was added and stirred at 300 rpm for 10 minutes with a stirrer to prepare a second solution. The viscosity of the second liquid prepared was 500 cps (25 캜).

3) Manufacture of color block

The first and second liquids prepared in this liquid injector (Graco Inc. Reactor E-XP1) were put in the respective auxiliary tanks, and the temperature of the stock solution at 27 ° C was maintained. Then, the liquid was transferred to the main tank through the transfer pump, The resin composition of the first and second liquids was transferred to the conveyor through a Fusion MP gun (Graco Inc. Mechanical Purge Guns, GX-7) at a pressure of 80 bar at a 1/1 weight ratio, Lt; RTI ID = 0.0 > 1mm < / RTI > After the primary coating of the resin composition, color silica (average particle diameter 2.5 mm, Kyungin material, color silica) was uniformly sprayed on the upper surface of the tile block so that the number of particles per unit cm ² was 9 or less. The resin composition was secondarily coated with a dry film thickness of 1.5 mm and dried for 5 minutes through a drying chamber at 60 ° C, and the product was evaluated.

[Example 4]

1) Preparation of the first liquid

Aromatic diisocyanate prepolymer having 37% by weight of methyl methacrylate, 8% by weight of butyl acrylate, 13% by weight of 2-hydroxyethyl acrylate, 5% by weight of trimethylolpropane tri (meth) acrylate and 5% , 6 wt% of polyvinyl alcohol (HEPESCEM, VAROCOAT HUB-500F) and 3 wt% of polyaspartic ester (Bayer Material Science, Desmophen NH 1420) was heated to 50 캜 and stirred at 500 rpm, 10% by weight of methyl methacrylate (weight average molecular weight 110,000 g / mol) and 5% by weight of a urethane resin (weight average molecular weight 15,000 g / mol) were dissolved for 90 minutes. 4% by weight of N, N-dimethyl-p-toluidine as a reaction catalyst, 1% by weight of a paraffin wax having a weight average molecular weight of 400 g / mol, a silicone oil type defoaming agent (Evonik Tego Chemie, Tego Foamex 840, a siloxane polyether polyol copolymer) was mixed and dispersed.

After the dispersion was cooled to room temperature, 7 weight% of iron oxide was added as a pigment, and the mixture was sufficiently dispersed by stirring at 1000 rpm for 1 hour with a high-speed stirrer to prepare a first liquid. The viscosity of the first liquid prepared was 450 cps (25 캜).

2) Preparation of the second solution

A reactive monomer mixture prepared by mixing 45 wt% of methyl methacrylate, 10 wt% of butyl acrylate, 13 wt% of 2-hydroxyethyl acrylate and 7 wt% of trimethylolpropane tri (meth) acrylate was heated to 50 캜 10 wt% of polymethyl methacrylate (weight average molecular weight 110,000 g / mol) and 5 wt% of a urethane resin (weight average molecular weight 15,000 g / mol) were added while stirring at 500 rpm and dissolved for 90 minutes. After the molten mixture was cooled to room temperature, 10% by weight of benzoyl peroxide was added and stirred at 300 rpm for 10 minutes with a stirrer to prepare a second solution. The viscosity of the second liquid prepared was 550 cps (25 캜).

3) Manufacture of color block

The first and second liquids prepared in this liquid injector (Graco Inc. Reactor E-XP1) were put in the respective auxiliary tanks, and the temperature of the stock solution at 27 ° C was maintained. Then, the liquid was transferred to the main tank through the transfer pump, The resin composition of the first and second liquids was transferred to the conveyor through a Fusion MP gun (Graco Inc. Mechanical Purge Guns, GX-7) at a pressure of 80 bar at a 1/1 weight ratio, To a dry film thickness of 2 mm. After the primary coating of the resin composition, color silica (average particle diameter 2.5 mm, Kyungin material, colloidal silica) was uniformly sprayed on the upper surface of the clay block such that the number of particles per unit cm ² was 9 or less, After drying for a few minutes, the product was evaluated.

[Example 5]

1) Preparation of the first liquid

Aromatic diisocyanate prepolymer having 37% by weight of methyl methacrylate, 8% by weight of butyl acrylate, 13% by weight of 2-hydroxyethyl acrylate, 5% by weight of trimethylolpropane tri (meth) acrylate and 5% , 6 wt% of polyvinyl alcohol (HEPESCEM, VAROCOAT HUB-500F) and 3 wt% of polyaspartic ester (Bayer Material Science, Desmophen NH 1420) was heated to 50 캜 and stirred at 500 rpm, 10% by weight of methyl methacrylate (weight average molecular weight 110,000 g / mol) and 5% by weight of an unsaturated polyester resin (weight average molecular weight 7,000 g / mol) were added and dissolved for 90 minutes. 4% by weight of N, N-dimethyl-p-toluidine as a reaction catalyst, 1% by weight of a paraffin wax having a weight average molecular weight of 400 g / mol, a silicone oil type defoaming agent (Evonik Tego Chemie, Tego Foamex 840, a siloxane polyether polyol copolymer) was mixed and dispersed.

After the dispersion was cooled to room temperature, 7 weight% of iron oxide was added as a pigment, and the mixture was sufficiently dispersed by stirring at 1000 rpm for 1 hour with a high-speed stirrer to prepare a first liquid. The viscosity of the first liquid prepared was 550 cps (25 캜).

2) Preparation of the second solution

A reactive monomer mixture prepared by mixing 45 wt% of methyl methacrylate, 10 wt% of butyl acrylate, 13 wt% of 2-hydroxyethyl acrylate and 7 wt% of trimethylolpropane tri (meth) acrylate was heated to 50 캜 While stirring at 500 rpm, 10 wt% of polymethyl methacrylate (weight average molecular weight 110,000 g / mol) and 5 wt% of an unsaturated ester resin (weight average molecular weight 7,000 g / mol) were added and dissolved for 90 minutes. After the molten mixture was cooled to room temperature, 10% by weight of benzoyl peroxide was added and stirred at 300 rpm for 10 minutes with a stirrer to prepare a second solution. The viscosity of the second liquid prepared was 700 cps (25 캜).

3) Manufacture of color block

The first and second liquids prepared in this liquid injector (Graco Inc. Reactor E-XP1) were put in the respective auxiliary tanks, and the temperature of the stock solution at 27 ° C was maintained. Then, the liquid was transferred to the main tank through the transfer pump, The resin composition of the first and second liquids was transferred to the conveyor through a Fusion MP gun (Graco Inc. Mechanical Purge Guns, GX-7) at a pressure of 80 bar at a 1/1 weight ratio, To a dry film thickness of 2 mm. After the primary coating of the resin composition, color silica (average particle diameter 2.5 mm, Kyungin material, colloidal silica) was uniformly sprayed on the upper surface of the clay block such that the number of particles per unit cm ² was 9 or less, After drying for a few minutes, the product was evaluated.

[Comparative Example 1]

Was prepared in the same manner as in Example 4 except that the aromatic diisocyanate prepolymer, the polyaspartic ester and the acrylic resin were not included.

1) Preparation of the first liquid

A reactive monomer mixture prepared from 46 wt% methyl methacrylate, 8 wt% butyl acrylate, 13 wt% 2-hydroxyethyl acrylate and 5 wt% trimethylol propane tri (meth) acrylate was heated to 50 ° C While stirring at 500 rpm, 15% by weight of a urethane resin (weight average molecular weight: 15,000 g / mol) was added and dissolved for 90 minutes. 4% by weight of N, N-dimethyl-p-toluidine as a reaction catalyst, 1% by weight of a paraffin wax having a weight average molecular weight of 400 g / mol, a silicone oil type defoaming agent (Evonik Tego Chemie, Tego Foamex 840, a siloxane polyether polyol copolymer) was mixed and dispersed.

After the dispersion was cooled to room temperature, 7 weight% of iron oxide was added as a pigment, and the mixture was sufficiently dispersed by stirring at 1000 rpm for 1 hour with a high-speed stirrer to prepare a first liquid. The viscosity of the prepared first liquid was 3300 cps (25 캜).

2) Preparation of the second solution

A reactive monomer mixture prepared by mixing 45 wt% of methyl methacrylate, 10 wt% of butyl acrylate, 13 wt% of 2-hydroxyethyl acrylate and 7 wt% of trimethylolpropane tri (meth) acrylate was heated to 50 캜 10 wt% of polymethyl methacrylate (weight average molecular weight 110,000 g / mol) and 5 wt% of a urethane resin (weight average molecular weight 15,000 g / mol) were added while stirring at 500 rpm and dissolved for 90 minutes. After the molten mixture was cooled to room temperature, 10% by weight of benzoyl peroxide was added and stirred at 300 rpm for 10 minutes with a stirrer to prepare a second solution. The viscosity of the second liquid prepared was 550 cps (25 캜).

3) Manufacture of color block

The first and second liquids prepared in this liquid injector (Graco Inc. Reactor E-XP1) were put in the respective auxiliary tanks, and the temperature of the stock solution at 27 ° C was maintained. Then, the liquid was transferred to the main tank through the transfer pump, The resin composition of the first and second liquids was transferred to the conveyor through a Fusion MP gun (Graco Inc. Mechanical Purge Guns, GX-7) at a pressure of 80 bar at a 1/1 weight ratio, To a dry film thickness of 2 mm. After the primary coating of the resin composition, color silica (average particle diameter 2.5 mm, Kyungin material, colloidal silica) was uniformly sprayed on the upper surface of the clay block such that the number of particles per unit cm ² was 9 or less, After drying for a few minutes, the product was evaluated.

[Comparative Example 2]

Was prepared in the same manner as in Example 5, except that the acrylic resin and the wax were not included.

1) Preparation of the first liquid

Aromatic diisocyanate prepolymer having 37% by weight of methyl methacrylate, 8% by weight of butyl acrylate, 13% by weight of 2-hydroxyethyl acrylate, 5% by weight of trimethylolpropane tri (meth) acrylate and 5% , 6 wt% of polyvinyl alcohol (HEPESCEM, VAROCOAT HUB-500F) and 3 wt% of polyaspartic ester (Bayer Material Science, Desmophen NH 1420) was heated to 50 캜 and stirred at 500 rpm, 15% by weight of a polyester resin (weight average molecular weight 7,000 g / mol) was added and dissolved for 90 minutes. 4 wt% of N, N-dimethyl-p-toluidine as a reaction catalyst, 2 wt% of silicone oil type defoamer (Evonik Tego Chemie, Tego Foamex 840, siloxane polyether polyol copolymer) was added to the resin solution at the same temperature and under stirring conditions, Were mixed and dispersed.

After the dispersion was cooled to room temperature, 7 weight% of iron oxide was added as a pigment, and the mixture was sufficiently dispersed by stirring at 1000 rpm for 1 hour with a high-speed stirrer to prepare a first liquid. The viscosity of the first liquid prepared was 3100 cps (25 캜).

2) Preparation of the second solution

A reactive monomer mixture prepared by mixing 45 wt% of methyl methacrylate, 10 wt% of butyl acrylate, 13 wt% of 2-hydroxyethyl acrylate and 7 wt% of trimethylolpropane tri (meth) acrylate was heated to 50 캜 While stirring at 500 rpm, 15 wt% of an unsaturated ester resin (weight average molecular weight 7,000 g / mol) was added and dissolved for 90 minutes. After the molten mixture was cooled to room temperature, 10% by weight of benzoyl peroxide was added and stirred at 300 rpm for 10 minutes with a stirrer to prepare a second solution. The viscosity of the second liquid prepared was 3250 cps (25 캜).

3) Manufacture of color block

The first and second liquids prepared in this liquid injector (Graco Inc. Reactor E-XP1) were put in the respective auxiliary tanks, and the temperature of the stock solution at 27 ° C was maintained. Then, the liquid was transferred to the main tank through the transfer pump, The resin composition of the first and second liquids was transferred to the conveyor through a Fusion MP gun (Graco Inc. Mechanical Purge Guns, GX-7) at a pressure of 80 bar at a 1/1 weight ratio, To a dry film thickness of 2 mm. After the primary coating of the resin composition, color silica (average particle diameter 2.5 mm, Kyungin material, colloidal silica) was uniformly sprayed on the upper surface of the clay block such that the number of particles per unit cm ² was 9 or less, After drying for a few minutes, the product was evaluated.

[Comparative Example 3]

Was prepared in the same manner as in Example 5, except that the aromatic diisocyanate prepolymer and the acrylic resin were not included.

1) Preparation of the first liquid

Methyl methacrylate, 43 wt% of butyl acrylate, 8 wt% of butyl acrylate, 13 wt% of 2-hydroxyethyl acrylate, 5 wt% of trimethylolpropane tri (meth) acrylate, polyaspartic ester (Bayer Material Science, Desmophen NH 1420) was heated to 50 ° C and stirred at 500 rpm while 15 wt% of unsaturated polyester resin (weight average molecular weight 7,000 g / mol) was added and dissolved for 90 minutes. 4 wt% of N, N-dimethyl-p-toluidine as a reaction catalyst, 2 wt% of silicone oil type defoamer (Evonik Tego Chemie, Tego Foamex 840, siloxane polyether polyol copolymer) was added to the resin solution at the same temperature and under stirring conditions, Were mixed and dispersed.

After the dispersion was cooled to room temperature, 7 weight% of iron oxide was added as a pigment, and the mixture was sufficiently dispersed by stirring at 1000 rpm for 1 hour with a high-speed stirrer to prepare a first liquid. The viscosity of the first liquid prepared was 3050 cps (25 캜).

2) Preparation of the second solution

A reactive monomer mixture prepared by mixing 45 wt% of methyl methacrylate, 10 wt% of butyl acrylate, 13 wt% of 2-hydroxyethyl acrylate and 7 wt% of trimethylolpropane tri (meth) acrylate was heated to 50 캜 While stirring at 500 rpm, 15 wt% of an unsaturated ester resin (weight average molecular weight 7,000 g / mol) was added and dissolved for 90 minutes. After the molten mixture was cooled to room temperature, 10% by weight of benzoyl peroxide was added and stirred at 300 rpm for 10 minutes with a stirrer to prepare a second solution. The viscosity of the second liquid prepared was 3250 cps (25 캜).

3) Manufacture of color block

The first and second liquids prepared in this liquid injector (Graco Inc. Reactor E-XP1) were put in the respective auxiliary tanks, and the temperature of the stock solution at 27 ° C was maintained. Then, the liquid was transferred to the main tank through the transfer pump, The resin composition of the first and second liquids was transferred to the conveyor through a Fusion MP gun (Graco Inc. Mechanical Purge Guns, GX-7) at a pressure of 80 bar at a 1/1 weight ratio, To a dry film thickness of 2 mm. After the primary coating of the resin composition, color silica (average particle diameter 2.5 mm, Kyungin material, colloidal silica) was uniformly sprayed on the upper surface of the clay block such that the number of particles per unit cm ² was 9 or less, After drying for a few minutes, the product was evaluated.

Example 1 Example 2 Example 3 Example 4 Example 5 The tensile strength
(MPa) 50 38 40 55 53 Elongation (%) 8 3 2 10 10 Concrete bond strength
(MPa) Good Good Good Good Good Waterproof Good Good Good Good Good Adiabatic
(W / mK) 0.025 0.070 0.085 0.040 0.045 Water resistance Good Good Good Good Good

Comparative Example 1 Comparative Example 2 Comparative Example 3 The tensile strength
(MPa) 2 4 3 Elongation (%) 0.07 0.12 0.15 Concrete bond strength
(MPa) Bad Bad Bad Waterproof Bad Bad Bad Adiabatic
(W / mK) 0.850 1,000 0.650 Water resistance Bad Bad Bad

As shown in Table 1, the green reactive two-pack type resin composition according to the present invention has excellent mechanical strength such as tensile strength and elongation, and excellent adhesive strength to concrete.

Further, it was confirmed that the color block produced by the production method of the present invention is excellent in water resistance, heat insulation and water resistance.

In particular, as shown in Examples 1, 4 and 5, when the diisocyanate prepolymer and the polyaspartic ester were included as the reactive monomer, it was confirmed that the tensile strength and elongation of the coating layer were further improved. It affects the physical properties and it is confirmed that it is advantageous for construction in winter.

When the acrylic resin as the binder resin and the aromatic diisocyanate prepolymer and the polyaspartic ester and the wax are not contained as the binder resin as in Comparative Examples 1, 2 and 3, the dispersion stability of the composition is unstable and the long-term storage stability is poor. And the mechanical properties of the coating layer were deteriorated.

Claims (13)

A method for producing a color block, comprising the step of mixing and spraying an environmentally-responsive two-component resin composition using a spray gun, coating the surface of the block one or more times, and then drying. The method according to claim 1,
Further comprising the step of spraying particles for imparting concavity and convexity to the surface after the application of the environmentally reactive two-pack type resin composition or during the application of the environmentally friendly two pack type resin composition. The method according to claim 1,
The environmentally reactive two-pack type resin composition comprises an acrylic resin alone or a binder resin obtained by mixing one or two or more resins selected from an acrylic resin and a urethane resin, an unsaturated ester resin, an acrylic urethane resin, an acrylic unsaturated ester resin and a urethane unsaturated ester resin , A first liquid (A) containing a reactive monomer, a reaction catalyst, a pigment, an antifoaming agent and a wax,
Acrylic resin alone or a binder resin obtained by mixing an acrylic resin with any one or two or more resins selected from a urethane resin, an unsaturated ester resin, an acrylic urethane resin, an acrylic unsaturated ester resin and a urethane unsaturated ester resin and a binder resin comprising a reactive monomer and a curing agent And a second liquid. The method of claim 3,
Wherein the first liquid and the second liquid have a viscosity of 20 to 3000 cps at 25 캜. The method of claim 3,
Wherein the first solution and the second solution are mixed at a weight ratio of 1: 0.1-10. The method of claim 3,
The first liquid contains 5 to 35% by weight of a binder resin, 25 to 80% by weight of a reactive monomer, 0.1 to 10% by weight of a reaction catalyst, 0.1 to 20% by weight of a pigment, 0.01 to 5% by weight of an antifoam agent and 0.01 to 5% Including,
Wherein the second liquid comprises 5 to 45 wt% of a binder resin, 40 to 80 wt% of a reactive monomer, and 1 to 20 wt% of a curing agent. The method of claim 3,
In the first solution, the reactive monomer is at least one selected from the group consisting of methyl methacrylate, butyl acrylate, 2-hydroxyethyl acrylate, trimethylolpropane tri (meth) acrylate, isophorone diisocyanate, A diisocyanate prepolymer, a polyaspartic ester, and a polyether polyol having a weight average molecular weight of 400 to 10,000 g / mol,
The reaction catalyst is N, N-dimethyl-p-toluidine,
The antifoaming agent is a silicone oil,
The wax is a paraffin wax,
Wherein the pigment is an inorganic pigment. The method of claim 3,
In the second solution, the reactive monomer is any one or a mixture of two or more selected from methyl methacrylate, butyl acrylate, 2-hydroxyethyl acrylate, trimethylolpropane tri (meth) acrylate and polyether polyol,
Wherein the curing agent uses an organic peroxide. The method according to claim 1,
Wherein the coating thickness of the environmentally reactive two-component resin composition is 0.1 to 5 mm. 3. The method of claim 2,
The particles may be any one or more selected from among silica sand, colored silica sand, glass beads, colored glass beads, urethane chips, colored urethane chips, rubber chips, colored rubber chips, acrylic beads, colored acrylic beads, colored plastic beads, Wherein a mixture is used. 11. The method of claim 10,
Wherein the particles have an average particle diameter of 0.1 to 5 mm. A color block produced by the method of any one of claims 1 to 11, comprising a block and a coating layer on the surface of the block,
The block is selected from a concrete block, a concrete block block, a lead block, a sidewalk block, a clay block, a reinforced earth retaining wall block, a grass block, an ocher block, a porcelain block, a tile block, a lightweight concrete block,
The coating layer may be made of an acrylic resin alone or a mixture of an acrylic resin and a binder resin obtained by mixing one or two or more resins selected from a urethane resin, an unsaturated ester resin, an acrylic urethane resin, an acrylic unsaturated ester resin and a urethane unsaturated ester resin, (A) comprising a catalyst, a pigment, a defoaming agent and a wax,
Acrylic resin alone or a binder resin obtained by mixing an acrylic resin with any one or two or more resins selected from a urethane resin, an unsaturated ester resin, an acrylic urethane resin, an acrylic unsaturated ester resin and a urethane unsaturated ester resin and a binder resin comprising a reactive monomer and a curing agent And the second liquid is coated with an environment-friendly reactive liquid type resin composition. 13. The method of claim 12,
Wherein the coating layer has a tensile strength of 20 to 60 MPa, an elongation of 1 to 15%, a concrete adhesion strength of 1.5 MPa or more, and a heat insulating property of 0.025 to 0.080 W / mK.

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