KR100984235B1 - The rock-pattern panel - Google Patents

Abstract

PURPOSE: A rock pattern board is provided to express the feeling of a natural granite pattern and reduce weight and manufacturing costs. CONSTITUTION: A cement board(10) is made by mixing cement and water. A reinforcement layer is made by coating the mixture of water, fluoride, surfactant, butyl acrylate, styrene monomer, acrylic acid, hydroxy ethyl acrylate, and acrylonitrile. A barrier layer(20) is made of primer materials. A heat shielding layer(40) is made by coating the mixture of additive, mica pellet, water, and acryl emulsion. A rock pattern layer(50) is coated with composition. An anti-stain layer(60) prevent the contamination due to foreign materials.

Description

Rock-pattern panel {The rock-pattern panel}

The present invention relates to a rock-patterned sheet of the present invention, and more particularly, to a rock-patterned sheet having a low manufacturing cost and a light weight, showing the texture of natural granite, and having excellent chemical resistance, adhesion, weather resistance, and stain resistance.

Granite or marble, which is commonly used for exterior wall finishing materials, is often difficult to supply due to the lack of raw materials in Korea and its total dependence on imports from China and other countries. The design and color are also monotonous. there was.

In addition, the use of heat insulators is not easy compared to expensive construction costs, which is a significant burden for construction companies, such as a decrease in heat insulation efficiency.

In general, heat insulation materials are installed on the walls that divide the interior of the building into various spaces to reduce heat loss and heat inflow to the outside. In this case, it is preferable to use a material having a low thermal conductivity of the material itself. In order to reduce the thermal conductivity, it is commonly used to have a porosity and obtain a thermal insulation effect by using the thermal insulation of air in the micropores. This is because the thermal conductivity of air is small, so that the ideal thermal insulation effect can be obtained in a certain space so as not to cause convection.

The insulation is widely used because it is not only cheap but easy to purchase, and expanded polystyrene (Styrofoam) may be a representative example.

However, the above expanded styrene simply exerts a thermal insulation effect depending only on the thermal insulation of air present in a plurality of micropores, and thus has a limitation in its effect, thus failing to meet the general psychology of residents expecting a high thermal insulation effect.

In addition, the foamed styrene does not sufficiently absorb vibrations or noise generated from the wall and does not effectively block moisture, and thus it is not able to provide satisfactory dust, soundproofing, and moisture-proof effects. There was a problem.

On the other hand, the foamed styrene is as vulnerable to fire as it is widely known, there is a problem that not only is burned in a short time when a fire occurs, but also generates toxic gases harmful to the human body.

Insulation also refers to the transfer of heat between objects and the transfer of heat, that is, to prevent the transfer of heat.The heat that we feel in the skin consists of conduction heat, convection heat, and radiant heat. This heat transfers to 20% and 75% of radiant heat.

In other words, bulk insulation materials such as urethane and styrofoam block conduction heat (5%) and convective heat (20%) on the principle of delaying heat transfer, but do not block the radiation heat (75%) that moves to the long wavelength (infrared) state. have.

Therefore, there is an urgent need for the development of a heat insulating material having a small volume and excellent heat insulation efficiency. Also, there is an urgent need for the development of a composite wall finishing plate that can reduce dependence on imports, have excellent heat insulation efficiency, and replace granite or marble.

In addition, the granite has a considerable weight and has always had the potential to act as a cause of deadly human resources in natural disasters such as earthquakes.

Earthquakes are the most terrible phenomena of natural disasters and the most devastating phenomena that cause human and property damage. Currently, earthquakes of magnitude 8 or more occur twice a year and 20 times more than 7 magnitudes worldwide. These earthquakes occur mainly in earthquake zones, but there are differences in magnitude and frequency, but anywhere on the earth's surface. It can be undeniable.

In the Korean peninsula, which is often mistaken for the fact that earthquakes do not occur, there has been a lot of seismic activity in history and we cannot rule out the possibility of earthquakes.

Based on this recognition, earthquake-resistant design techniques were introduced in buildings from 1988, and from 1992, the standard specification for road bridges was revised to provide for seismic design of bridges.

These regulations have been increasingly recognized for the importance of earthquake-proof design for buildings after the Kobe earthquake in 1994, and since 1996, more seismic standards have been strengthened for buildings with more than five stories. All apartments require mandatory seismic regulations.

In this situation, it is also urgently required to develop a composite panel finish plate having a light weight and a seismic structure that can replace granite or marble.

The technical problem to be solved by the present invention is to provide a rock-patterned plate material having a low manufacturing cost and light weight, yet exhibits the texture of natural granite pattern, and has excellent chemical resistance, adhesion, weather resistance, and stain resistance.

The present invention to solve the above technical problem,

Cement board dried by mixing cement and water, water, silofluoride, surfactant, butyl acrylate, styrene monomer, acrylic acid, hydroxyethyl acrylate, acrylonitrile, zinc stearate, talc, A barrier layer made of a reinforcement layer coated with a mixture of methyl cellulose and dried, a primer material formed on top of the reinforcement layer to prevent an increase in adhesive strength and corrosion, and provided on an upper portion of the barrier layer to be transferred from the outside. A heat shielding layer for blocking heat, and a multivalent metal on top of the heat shielding layer Rock pattern layer coated with at least one selected from the group consisting of silicates and polyvalent metal carbonates and finely pulverized granite powder, water, a surfactant and an acrylic emulsion, and to prevent contamination by foreign matter on the upper part of the rock pattern layer It provides a rock-patterned plate, characterized in that it comprises an antifouling layer.

According to one embodiment of the invention, the cement board may further comprise an organic fiber at the time of mixing thereof.

According to another embodiment of the present invention, the organic fibers may be nylon fibers and polypropylene fibers.

According to another embodiment of the present invention, the silicide salts may be zinc silicate and magnesium silicate.

According to another embodiment of the present invention, the mixture is 100 to 200 parts by weight of water, 1 to 3 parts by weight of a silicide salt, 0.1 to 1 parts by weight of surfactant, 100 to 250 parts by weight of butyl acrylate, 100 to 300 parts by weight of styrene monomer, 1 to 2.5 parts by weight of acrylic acid, 1 to 2.5 parts by weight of hydroxyethyl acrylate, 1 to 4 parts by weight of acrylonitrile, 3 to 15 parts by weight of zinc stearate, 10 to 40 parts by weight of talc, and It may contain 2 to 10 parts by weight of methyl cellulose.

According to another embodiment of the present invention, the primer material may be at least one selected from the group consisting of acrylic resin, polyacrylate, polyurethane, polyolefin and silicone resin.

According to another embodiment of the present invention, the heat shield layer may be applied by mixing mica particles, water, acrylic emulsion and additives.

According to another embodiment of the present invention, the mica particles may have a particle size of 10 to 100㎛.

According to another embodiment of the present invention, the additive may be at least one selected from the group consisting of sedimentation inhibitors, dispersants, wetting agents, antifoaming agents, preservatives, texanol and flow control agent.

According to another embodiment of the present invention, the composition is selected from the group consisting of carboxylic acid, sulfonic acid salts, sulfates and phosphates It may further include at least one.

According to another embodiment of the present invention, the polyvalent metal silicate is sodium montmorillonite, magnesium aluminum silicate, talc, hydrated aluminum silicate, calcium bentonite, saponite, sepiolite, sodium aluminosilicate, hectorite and amorphous magnesium silicate It may be at least one selected from the group consisting of.

According to another embodiment of the present invention, the polyvalent metal carbonate may be at least one selected from the group consisting of calcium carbonate, magnesium carbonate, iron carbonate, manganese carbonate, dolomite and zinc carbonate.

According to another embodiment of the present invention, the granite powder may have an average diameter of 20 to 30 μm and a powder degree of 1500 to 2500 cm 2 / g as a specific surface area.

According to another embodiment of the invention, the composition is a polyvalent metal with respect to the whole composition Finely ground with at least one to three parts by weight selected from the group consisting of silicates and polyvalent metal carbonates 2 to 5 parts by weight of granite stone powder, 65 to 80 parts by weight of water, 0.1 to 0.5 parts by weight of antifoam, 0.1 to 0.3 parts by weight of preservative, 1 to 5 parts by weight of thickener, 0.5 to 1.5 parts by weight of surfactant and 15 to 25 of acrylic emulsion It may be part by weight.

According to another embodiment of the present invention, the composition may further include at least one selected from the group consisting of antifoaming, preservatives, thickeners, dispersants, wetting agents and anti-flow control material.

According to another embodiment of the present invention, the antifouling layer may be formed of a polyurethane paint.

According to another embodiment of the present invention, the polyurethane paint is 30 to 60 parts by weight of hydroxy acrylate resin, 5 to 30 parts by weight of xylene, 0.1 to 2 parts by weight of silicone-based dispersant, dioxide 10 to 40 parts by weight of titanium (TiO ₂ ), 1 to 10 parts by weight of methyl isobutyl ketone, 1 to 10 parts by weight of butyl acetate, 0.1 to 2 parts by weight of antifoaming agent, 0.1 to 2 parts of curing accelerator It can be prepared by mixing a main component in parts by weight with 10 to 50 parts by weight of an aliphatic polyisocyanate resin, 5 to 40 parts by weight of silicate, and 10 to 60 parts by weight of butyl acetate. .

According to another embodiment of the present invention, the particle size of the titanium dioxide may be 5 to 12㎛.

The rock pattern plate according to the present invention is inexpensive in manufacturing cost and lightweight but exhibits the texture of natural granite pattern, and has excellent effects of chemical resistance, adhesion, weather resistance and pollution resistance.

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

As described below, the present invention will be described by way of example, but only for illustrative purposes, and those skilled in the art to which the present invention pertains various modifications and equivalent implementation therefrom. It will be appreciated that examples are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

The rock pattern board according to the present invention is a cement board dried by mixing cement and water, water, silofluoride, surfactant, butyl acrylate, styrene monomer, acrylic acid, hydroxyethyl acrylate, acryl on top of the cement board. A barrier layer made of a reinforcement layer coated with a mixture of loritril, zinc stearate, talc, and methyl cellulose and dried, and a primer material formed on top of the reinforcement layer to prevent an increase in adhesive strength and corrosion; A heat shielding layer provided at an upper portion to block heat transferred from the outside, and a multivalent metal on the upper portion of the heat shielding layer Rock pattern layer coated with at least one selected from the group consisting of silicates and polyvalent metal carbonates and finely pulverized granite powder, water, a surfactant and an acrylic emulsion, and to prevent contamination by foreign matter on the upper part of the rock pattern layer It is characterized by including an antifouling layer.

1 is a diagram conceptually showing a cross section of a rock pattern plate according to the present invention. Referring to Figure 1, the cement board 10 refers to a plate that is dried with cement (cement), the cement may be not only pure cement, but also high-strength cement depending on the environment used, for example, In case of occurrence, it may be a refractory cement in order to prevent the explosion. In this case, the cement may further include sand, gravel, water or organic fibers.

The organic fibers may use nylon fibers and polypropylene fibers, which are high in melting point and low in melting point. In case of fire in a building, the temperature of the cement board is increased so that the low melting point fibers are first used. As it melts, voids are generated, through which water vapor is released to the outside.

In addition, as the fire progresses, the temperature inside the cement board is continuously raised, so that the fibers having a high melting point are also sequentially melted to form a passage through which water vapor can be released to the microstructure.

Here, the fiber is a low melting point polypropylene fiber with a density of 0.91 g / cm 3, a melting point of 160 ° C. and a tensile strength of 560 MPa, while a fiber with a high melting point is nylon fiber with a density of 1.15 g / cm 3 and a melting point of It has a characteristic of 220 degreeC and tensile strength 918 Mpa.

In addition, the polypropylene fibers may have a diameter of 20 to 60 μm and a length of 10 to 20 mm, and the nylon fiber may have a diameter of 5 to 20 μm and a length of 5 to 20 mm. If the diameter or length of the polypropylene fiber or the diameter or length of the nylon fiber is less than the lower limit, when the fire occurs, the low melting point of the fiber melts as the temperature inside the building rises, so that the space occupied by the water vapor is smooth. There may be a problem that can not provide a space that can be ventilated, on the contrary, if the upper limit is exceeded, cement board molding may be difficult due to the fluidity decrease.

In addition, the amount of the organic fiber used may be 0.01 to 0.1% by volume with respect to the entire cement board, if the organic fiber is used in less than 0.01% by volume, the effect may be insignificant, on the contrary exceed 0.1% by volume As described above, it may be difficult to manufacture a cement board.

In order to increase the watertightness of the cement on the top of the cement board 10 to secure strength and waterproofing performance, water, silofluoride, surfactant, butyl acrylate, styrene monomer, acrylic acid, hydroxyethyl acrylate, acrylolitrile, stearic acid It is applied with a mixture containing zinc, talc and methyl cellulose to form a dry reinforcement layer 20.

The silicide salts may be zinc silicate and magnesium silicate, which are dissociated into metal ions such as zinc and magnesium and silicate ions (SiF ₆ ^{2 −} ) by hydrolysis in aqueous solution.

The silicic fluoride is hydrolyzed again to form amorphous silica and fluorine ion (F ⁻ ), and the amorphous silica promotes the pozzolanic reaction of cement containing a large amount of calcium hydroxide (Ca (OH) ₂ ). .

In addition, the fluorine ions dissociated from the silicide ions react with alkali metals such as Ca, Al, and Na to form metal fluorides such as CaF ₂ , NaF, AlF _3, and the like.

Due to these properties, the silicides improve the coagulation of cement, control of curing rate, and strength.

In addition, the silica fluoride salt is used in an amount of 1 to 3 parts by weight based on the total mixture. If it is less than 1 part by weight, the effect is insignificant.

In addition, the water is used to 100 to 200 parts by weight, if out of this range it is difficult to control the viscosity may cause inconvenience during construction.

Meanwhile, the surfactant refers to an anionic surfactant or a nonionic surfactant, and the surfactant is not particularly limited as long as it functions as a surfactant, but the anionic surfactant is sodium dodecyl benzenesulfate or sodium lauryl. Sulfate may be used, and the nonionic surfactant may also use octylphenol-10,30 or nonylphenol-10,20 and the like, and if it is less than 0.1 part by weight, it may not be able to fulfill its function and may cause aggregation. On the contrary, if it exceeds 1 part by weight, unnecessary use may be excessive.

In addition, the butyl acrylate is used from 100 to 250 parts by weight, if less than 100 parts by weight, the product may have a problem of high hardness and cracking phenomenon, and if it exceeds 250 parts by weight, the ductility is increased to become sticky Problems can arise.

The styrene monomer is used in the 100 to 300 parts by weight, if less than 100 parts by weight of the butyl acrylate in the opposite phenomenon can be increased due to the ductility may occur, if the excess exceeds 300 parts by weight of the product has a high hardness Splitting can occur.

The acrylic acid is used in 1 to 2.5 parts by weight, if less than 1 part by weight, the reaction is not well made, there may be a problem that the adhesive force is lowered, on the contrary, if the content exceeds 2.5 parts by weight may cause a problem that the viscosity is not controlled.

The hydroxyethyl acrylate is used in 1 to 2.5 parts by weight, if less than 1 part by weight may cause a problem that the adhesive strength is lowered, on the contrary, if it exceeds 2.5 parts by weight there is no problem of physical properties but low cost economical problems Can be.

The acrylonitrile is used in 1 to 4 parts by weight, if less than 1 part by weight, there may be a problem that may cause a problem that the ductility is increased due to the tackiness, on the contrary, if more than 4 parts by weight the product is high hardness cracking Problems may occur.

In addition, the zinc stearate is used in 3 to 15 parts by weight, if less than 3 parts by weight may be difficult to disperse, on the contrary, if it exceeds 15 parts by weight it may be separated from other mixtures when mixing / blending.

The talc is used in 10 to 40 parts by weight, if less than 10 parts by weight, the crack resistance, the rust preventive effect can be reduced, on the contrary, when exceeding 40 parts by weight may result in blending with other mixtures when mixed.

The methyl cellulose is used in the 2 to 10 parts by weight, if less than 2 parts by weight, the viscosity may be reduced workability and adhesion may be reduced, on the contrary, if it exceeds 10 parts by weight, the viscosity increases to increase the sliding Can be generated.

On the other hand, formed on top of the reinforcing layer 20 to form a barrier layer 30 made of a primer material to increase the adhesive strength and to prevent corrosion, the primer material is acrylic resin, polyacrylate, polyurethane, polyolefin And at least one selected from the group consisting of silicone resins.

If the thickness of the primer layer is less than 0.5 mm, it may be difficult to form the coating film is difficult to exhibit the adhesive force, on the contrary, if the primer layer exceeds 1 mm, the curing may be delayed and the coating film may crack after actual construction.

In addition, the barrier layer 30 is provided on top of the barrier layer 30 is made of a heat shield pigment to block the heat transmitted from the outside, the heat shield layer is mixed with mica particles, water, acrylic emulsion and additives Can be applied.

It is preferable that the mica particles have a particle size of 10 to 100 μm. If the particle size is less than 10 μm, processing of the particles may be very difficult and dispersion may be inefficient in the liquid phase. clusters or sedimentation may occur.

In addition, the acrylic emulsion is for imparting adhesion and is not particularly limited to use.

In addition, the additive may be used according to the needs of the working environment by selecting at least one selected from the group consisting of anti-settling agent, dispersing agent, wetting agent, antifoaming agent, preservative, texanol and flow control agent.

The mica particles are mixed with water, an acrylic emulsion, and an additive, and coated on the barrier layer 20 to be dried.

Meanwhile, a multivalent metal is formed on the heat shield layer 40. At least one selected from the group consisting of a silicate and a polyvalent metal carbonate and a finely ground granite powder, water, an antifoaming agent, a preservative, a thickener, a surfactant, and a rock pattern layer 50 coated with a composition consisting of an acrylic emulsion.

The composition is selected from the group consisting of carboxylic acid, sulfonate, sulfate and phosphate It may further include at least one, thereby imparting polarity to the composition to prevent agglomeration or the formation of scale, the amount of use is 0.1 to 0.5 parts by weight based on the total composition, Out of range may have little effect or wasted resources.

In addition, the polyvalent metal silicate is at least one selected from the group consisting of sodium montmorillonite, magnesium aluminum silicate, talc, hydrated magnesium aluminum silicate, calcium bentonite, saponite, sepiolite, sodium aluminosilicate, hectorite and amorphous magnesium silicate The polyvalent metal carbonate may be at least one selected from the group consisting of calcium carbonate, magnesium carbonate, iron carbonate, manganese carbonate, dolomite, and zinc carbonate. The granite powder may be used by chemical and physical properties of such a material. This liquid phase prevents clustering and distributes uniformly.

The granite powder has an average diameter of 20 to 30 µm and a powder degree of 1500 to 2500 cm 2 / g as a specific surface area. If the granite powder is out of the above range, it may be accompanied by an increase in manufacturing cost and technical difficulties in powdering granite. The nozzle may be clogged if it is sprayed at the time of coating in actual operation.

In addition, the composition is a polyvalent metal with respect to the whole composition Finely ground with at least one to three parts by weight selected from the group consisting of silicates and polyvalent metal carbonates 2 to 5 parts by weight of granite stone powder, 65 to 80 parts by weight of water, 0.5 to 1.5 parts by weight of surfactant, and 15 to 25 parts by weight of acrylic emulsion.

The polyvalent metal At least one selected from the group consisting of silicates and polyvalent metal carbonates is used in an amount of 1 to 3 parts by weight. If it is out of this range, the effect may be insignificant or excessive use may result in an increase in manufacturing cost.

In addition, the granite stone powder may be used 2 to 5 parts by weight based on the entire composition, if out of this range to form the rock pattern layer 50, the pattern forming effect is insignificant and repeatedly applied repeatedly repeatedly workability This may result in degradation or badness such as nozzle clogging.

The water may be used 65 to 80 parts by weight, if out of this range it is difficult to control the viscosity may cause inconvenience during construction.

In addition, the surfactant is not particularly limited and used, and may be selected or used in combination with a cationic, anionic or nonionic surfactant according to the working environment, the amount of use is 0.5 to 1.5 parts by weight, if outside of this range This can lead to coagulation or unnecessary resources.

In addition, the acrylic emulsion is not particularly limited to use, the amount of the use is 15 to 25 parts by weight, if less than 15 parts by weight, if less than, the adhesive force can be reduced workability during construction, on the contrary 25 weight When the portion is exceeded, the appearance of the pattern by the granite stone powder may be insignificant.

On the other hand, the top of the rock pattern layer 50 may form an antifouling layer 60 to prevent contamination by foreign matter, the antifouling layer 60 is to prevent the contamination of the present invention by the external environment poly It may be formed of a urethane paint.

The polyurethane coating is 30 to 60 parts by weight of hydroxy acrylate resin, 5 to 30 parts by weight of xylene, 0.1 to 2 parts by weight of silicone-based dispersant, titanium dioxide (TiO ₂ ) 10 To 40 parts by weight, 1 to 10 parts by weight of methyl isobutyl ketone, 1 to 10 parts by weight of butyl acetate, 0.1 to 2 parts by weight of an antifoaming agent, and 0.1 to 2 parts by weight of a curing accelerator. The curing agent may be prepared by mixing 10 to 50 parts by weight of an aliphatic polyisocyanate resin, 5 to 40 parts by weight of silicate, and 10 to 60 parts by weight of butyl acetate.

 The amount of the hydroxy acrylate resin (Hydroxy actacrylate resin) is 30 to 60 parts by weight, out of this range may not uniformly disperse titanium dioxide or layer separation may occur over time.

The xylene (Xylene) is used as a solvent, the amount is 5 to 30 parts by weight. If out of this range, the titanium dioxide may not be uniformly sprayed or layer separation may occur over time.

In addition, the silicone-based dispersant is used to uniformly disperse the titanium dioxide in the hydroxy acrylate and xylene, the amount is 0.1 to 2 parts by weight. If outside this range, the titanium dioxide may not be uniformly dispersed or may adversely affect the storage stability.

In addition, the amount of titanium dioxide (TiO ₂ ) is 10 to 40 parts by weight. If it is less than 10 parts by weight may not have the effect of color development, on the contrary, if it exceeds 40 parts by weight may adversely affect the storage stability, the particle size of the titanium dioxide is preferably 5 to 12㎛, which forms a coating film in the future In this case, the roughness of the surface is uniform to prevent the hydrophilic or lipophilic contaminants from adhering to the external environment.

The methyl isobutyl ketone is used to dissolve the urethane resin as a solvent, it can provide sufficient dissolving power with the xylene described above. The above-mentioned xylene serves to disperse the urethane resin, the amount of which is used is 1 to 10 parts by weight, if less than 1 part by weight may not sufficiently dissolve the urethane resin, on the contrary, if more than 10 parts by weight It may not react with the urethane resin and may remain.

In addition, the butyl acetate (Butyl Acetate) is used as a solvent and the amount is 1 to 10 parts by weight. If less than 1 part by weight is used, the dissolving power may be reduced. On the contrary, if it is more than 10 parts by weight, the dissolving power increases but the viscosity decreases, so that the painting operation may be repeated several times during actual construction. It may be a factor.

In addition, the antifoaming agent serves to suppress the generation of bubbles during stirring, if less than 0.1 parts by weight is less effective in suppressing the generation of bubbles, on the contrary, more than 2 parts by weight may cause unnecessary waste.

In addition, the curing accelerator may use a tin compound and the like, the amount of the used may be 0.1 to 2 parts by weight, if less than 0.1 parts by weight, the curing may not occur, on the contrary 2 parts by weight if the coating film is cured The smoothness can be reduced because it is difficult to secure time for itself to cure.

The aliphatic polyisocyanate resin is used to form a urethane resin, the amount of which is 10 to 50 parts by weight. If it is less than 10 parts by weight, the urethane bond may not be sufficient to adversely affect the physical properties of the coating film, such as poor curing, poor drying, etc. On the contrary, if the content exceeds 50 parts by weight, curing may occur within the actual construction time after mixing, resulting in deterioration of product value. have.

In addition, the silicate is used to prevent contamination by hydrophilic or lipophilic contaminants in the rock pattern plate according to the present invention. Therefore, it is necessary to adjust the amount of use, 5 to 40 parts by weight is used. If it is less than 5 parts by weight, and there is little effect on the interaction between the surface of the coating film and the contaminants, the anti-pollution effect is reduced. May adversely affect fouling resistance.

In addition, the butyl acetate (Butyl Acetate) is used as a solvent, the use amount is 10 to 60 parts by weight. If less than 10 parts by weight is used, the dissolving power may be reduced. On the contrary, if it exceeds 60 parts by weight, the dissolving power increases but the viscosity decreases, so that the painting operation may be repeated several times during actual construction. It may be a factor.

Example 1

400 kg / m ^{3 of} cement and 50 kg / m ³ of sand are mixed with sufficient water, and 30 μm in diameter and 10 mm in length of polypropylene fiber and 20 μm in diameter and 10 mm in length of nylon fiber are mixed with the cement and sand. It was added at a volume of 0.05% by volume to form a cement board 5mm thick and dried. Next, 2 parts by weight of zinc silicate and magnesium silicate, 200 parts by weight of water, 1 part by weight of sodium lauryl sulfate as surfactant, 100 parts by weight of butyl acrylate, 100 parts by weight of styrene monomer, 2 parts by weight of acrylic acid, A mixture of 2 parts by weight of hydroxyethyl acrylate, 2 parts by weight of acrylonitrile, 5 parts by weight of zinc stearate, 10 parts by weight of talc, and 5 parts by weight of methyl cellulose was stirred at 800 rpm for 2 hours, and then 0.5 mm thick on the top of the cement board. It was applied and dried to form a reinforcing layer. Next, a barrier layer was laminated on the reinforcement layer by using a silicone resin. Next, the mica having an average particle diameter of 30 μm was formed at the top of the barrier layer by stirring at 1000 rpm for 30 minutes with an acrylic emulsion, an antisettling agent, a dispersant, a wetting agent, an antifoaming agent, an antiseptic agent, a flow preventing agent, and then dried. Next, the particle size distribution and the specific surface area 1500 of the magnesium aluminum silicate and sodium montmorillonite, each having an average diameter of 20 to 30 µm and a 24 µm sieve passage of 45.0% or more, and a bladder air permeation device on the top of the heat shield layer. 5 parts by weight of granite powder finely pulverized to a powder of ˜2500 cm 2 / g, 0.5 parts by weight of phosphate, 80 parts by weight of water, 1 part by weight of sodium lauryl sludge as a surfactant and an acrylic emulsion (solid content of 45% by weight) 20 The composition stirred at 800 parts by weight for 2 hours at a spray pressure of 3 kgf / cm 2 was formed to form a rock pattern layer and dried. Next, 50 parts by weight of hydroxy acrylate resin, 20 parts by weight of xylene (xylene) on the top of the rock pattern layer, silicone-modified polyacrylate (BYK-160, manufactured by BYK) as a silicone dispersant 2 Parts by weight, 10 parts by weight of titanium dioxide (TiO ₂ ) having an average particle size of 10 μm, 5 parts by weight of methyl isobutyl ketone, 5 parts by weight of butyl acetate, and polydimethylsiloxane as an antifoaming agent. ) 0.5 parts by weight, 0.5 parts by weight of butyl-Tin-Dilaurate as a curing accelerator, 20 parts by weight of aliphatic polyisocyanate resin, 10 parts by weight of silicate, butyl acetate ( Butyl Acetate) 20 parts by weight was stirred at 800 rpm for 30 minutes and then applied to form / dry an antifouling layer to prepare a rock pattern plate according to the present invention.

Experimental Example 1 Rock Pattern

The rock pattern plate manufactured by Example 1 described above is shown in FIGS. 2 and 3. FIG. 2 is a photograph showing the formation of a rock pattern layer once at an injection pressure of 3 kgf / cm 2 in Example 1, and FIG. 3 is a rock pattern layer twice at an injection pressure of 3 kgf / cm 2 in Example 1 It is the photograph which took the shape formed repeatedly. 2 and 3, the rock pattern plate according to the present invention can be seen that the texture of the pattern is very excellent, like granite ore.

Experimental Example 2 Chemical Resistance

The rock pattern plate prepared according to Example 1 was applied with 168 hours of hydrochloric acid (HCl, 5% by volume) for acidity measurement based on KSM 5000-95 standard, and KSM 5000-1121 standard for alkali resistance measurement. Based on 168 hours of calcium hydroxide (saturated solution of Ca (OH) ₂ ), both standards were evaluated as no abnormality.

Experimental Example 3 Adhesion

As a result of the experiment according to the KSF 3211 standard for the antifouling layer in Example 1, it can be seen that it has an adhesive force of 20 kgf / ㎠. Therefore, it was found that there is no fear of leaving the building according to the change of the season.

Experimental Example 4 Promoting Weather Resistance

The accelerated weather resistance test was performed on the rock-patterned plate produced in Example 1 based on the KSM-5000: 3231 standard, and was excellent in appearance without cracking, swelling, wrinkles or peeling.

Experimental Example 5 Pollution Resistance

The rock pattern plate produced in Example 1 was tested on the basis of KSM-5000: 3211 standard, and measured as 0.1. Through this, it could be seen that no yellowing defect occurred, and in the experiment of cleaning after polluting with carbon black, mud, colored pencil, and red ink, all were easily washed without using a separate cleaning agent.

1 is a view conceptually showing a cross section of a rock pattern plate according to the present invention.

Claims (8)

A cement board dried by mixing cement and water; Reinforcing layer coated and dried on the top of the cement board with a mixture consisting of water, silicides, surfactants, butyl acrylate, styrene monomer, acrylic acid, hydroxyethyl acrylate, acrylonitrile, zinc stearate, talc and methylcellulose ; A barrier layer formed on top of the reinforcing layer and formed of at least one primer material selected from the group consisting of acrylic resins, polyacrylates, polyurethanes, polyolefins, and silicone resins to increase adhesion strength and prevent corrosion; It is provided on top of the barrier layer to block the heat transferred from the outside to at least one additive selected from the group consisting of anti-settling agent, dispersant, wetting agent, antifoaming agent, preservative, texanol and flow control agent, mica particles, water And a heat shield layer applied by mixing an acrylic emulsion. On top of the heat shield layer is a polyvalent metal with respect to the whole composition 1 to 3 parts by weight of finely divided with at least one selected from the group consisting of silicates and polyvalent metal carbonates, granite powder 2 to 5 having an average diameter of 20 to 30 µm and a powder degree of 1500 to 2500 cm 2 / g. A rock pattern layer coated with a composition consisting of parts by weight, 65 to 80 parts by weight of water, 0.5 to 1.5 parts by weight of surfactant, and 15 to 25 parts by weight of an acrylic emulsion; And The rock pattern plate comprising a; an antifouling layer on the upper portion of the rock pattern layer to prevent contamination by foreign matter. The method of claim 1, The cement board is a rock pattern plate, characterized in that it further comprises nylon fibers and polypropylene fibers when mixed. The method of claim 1, The siliceous salt is a rock pattern plate, characterized in that the zinc silicate and magnesium silicate. The method of claim 1, The mixture is 100 to 200 parts by weight of water, 1 to 3 parts by weight of silicate salt, 0.1 to 1 parts by weight of surfactant, 100 to 250 parts by weight of butyl acrylate, 100 to 300 parts by weight of styrene monomer, acrylic acid 1 To 2.5 parts by weight, hydroxyethyl acrylate 1 to 2.5 parts by weight, acrylonitrile 1 to 4 parts by weight, zinc stearate 3 to 15 parts by weight, talc 10 to 40 parts by weight and methyl cellulose 2 to 10 parts by weight The rock pattern board characterized by the above. The method of claim 1, The composition is selected from the group consisting of carboxylic acid, sulfonate, sulfate and phosphate A rock pattern plate, characterized in that it further comprises at least one. The method of claim 1, The polyvalent metal silicate is at least one selected from the group consisting of sodium montmorillonite, magnesium aluminum silicate, talc, hydrated magnesium aluminum silicate, calcium bentonite, saponite, sepiolite, sodium aluminosilicate, hectorite and amorphous magnesium silicate The rock pattern board characterized by the above. The method of claim 1, The polyvalent metal carbonate is a rock pattern board, characterized in that at least one selected from the group consisting of calcium carbonate, magnesium carbonate, iron carbonate, manganese carbonate, dolomite and zinc carbonate. The method of claim 1, The antifouling layer may be formed of a polyurethane paint, wherein the polyurethane paint is 30 to 60 parts by weight of hydroxy acrylate resin, 5 to 30 parts by weight of xylene, and 0.1 to 2 parts by weight of a silicone-based dispersant. 10 to 40 parts by weight of titanium dioxide (TiO ₂ ) having a particle size of 5 to 12 μm, 1 to 10 parts by weight of methyl isobutyl ketone, 1 to 10 parts by weight of butyl acetate, and antifoaming agent 0.1 To 2 parts by weight, 10 to 50 parts by weight of the main body and aliphatic polyisocyanate resin, 0.1 to 2 parts by weight of the curing accelerator, 5 to 40 parts by weight of the silicate, and 10 to 60 parts by weight of the butyl acetate A rock-patterned sheet material, which is prepared by mixing a hardening agent with a negative portion.

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