KR102584415B1 - Polyurea waterproof agent manufacturing method and waterproof method using polyurea waterproof agend and CRC panel - Google Patents

Abstract

According to the present invention, provided is a method for producing a polyurea paint film waterproofing agent, the method comprising the steps of: preparing an A solution in which 100 parts by weight of an isocyanate complex is mixed and reacted with 70 to 90 parts by weight of polybutylene oxide glycol, 60 to 80 parts by weight of cyclohexanedimethanol, 50 to 70 parts by weight of ethyl 2-butyl acetoacetate, and 30-50 parts by weight of 2,4,6-tribromophenol, wherein in the isocyanate complex, tetramethylxylene diisocyanate, 4,4-dicyclohexylmethane diisocyanate, 1,4-cyclohexane diisocyanate, toluene 2,6-diisocyanate, and 4,4-methylenediphenyl diisocyanate are mixed at a volume ratio of 1 : 0.8 : 0.6 : 0.5 : 0.2; and preparing a B solution in which 100 parts by weight of an amine complex is mixed with 70 to 90 parts by weight of triethylphosphine, 60 to 80 parts by weight of dimethylamine, 50 to 70 parts by weight of cyclopentene, and 5 to 7 parts by weight of pigment, wherein in the amine complex, 2,4-diaminotoluene and 2,6-diaminotoluene are mixed at a volume ratio of 1 : 0.5. Accordingly, a polyuria paint film waterproofing agent with excellent durability is prepared, and waterproofing with reinforced insulation is achieved by applying the prepared polyuria paint film waterproofing agent to a CRC composite panel.

Description

Polyurea waterproof agent manufacturing method and insulation reinforcement waterproofing method using polyurea waterproof agent and CRC composite panel {Polyurea waterproof agent manufacturing method and waterproof method using polyurea waterproof agend and CRC panel}

The present invention relates to a method for manufacturing a polyurea coating waterproofing agent and a heat insulation reinforcement waterproofing method. More specifically, the present invention relates to tetramethylxylene diisocyanate, 4,4-dicyclohexylmethane diisocyanate, 1,4-cyclohexane diisocyanate, and toluene. Polybutylene oxide glycol, cyclohexanedimethanol, ethyl 2-butylacetoacetate, and 2,4,6-tribromophenol are added to an isocyanate complex of 2,6-diisocyanate and 4,4-methylenediphenyl diisocyanate. A highly durable polyurea made of liquid A mixed with liquid A and liquid B mixed with triethylphosphine, dimethylamine, cyclopentene, and pigment in an amine complex mixed with 2,4-diaminotoluene and 2,6-diaminotoluene. It relates to a method of manufacturing a polyurea coating waterproofing agent that can be applied to a CRC composite panel after manufacturing the coating waterproofing agent to enable waterproofing with reinforced insulation, and an insulation reinforced waterproofing method using a polyurea coating waterproofing agent and a CRC composite panel.

In general, concrete has been recognized as a semi-permanent structural material due to its excellent durability and compressive strength, but aging is accelerated over time due to various physical, chemical and environmental factors, so the surface of the concrete is not protected and is left intact. If left unattended, various deterioration phenomena such as aggregate exposure, surface peeling, cracking, reinforcing bar exposure and corrosion, decrease in strength, combustion ion penetration, increase in porosity, carbonation, salt damage, water leakage, etc. occur, which reduces the performance of the concrete structure and reduces its durability. This deterioration is causing serious problems in actual structures.

To solve these problems, waterproofing is being done on the roof, floor, and internal and external walls of buildings. Conventional general surface coating or waterproofing methods are used to improve mechanical and mechanical properties such as durability, acid resistance, alkali resistance, chemical resistance, elasticity, and waterproofing/corrosion resistance. A waterproofing method has been widely developed to apply polyurea resin coating films to concrete structures using ultra-fast hardening polyurea resin coatings, which have excellent physical and chemical properties, excellent adhesion, and enable seamless continuous coating construction, as well as easy construction even in complex structures and excellent applicability. It is being implemented.

Meanwhile, recently, not only is research actively underway on composite insulation and waterproofing methods that perform both insulation and waterproofing, but various construction methods for this are known. As a patent related to such known composite insulation construction, it is disclosed under Patent Publication No. These include Patent Publication No. 10-2012-0076904, Patent Publication No. 10-2013-0096935, and Patent No. 10-0683133.

Among the above known documents, Patent Publication No. 10-2012-0076904 relates to an insulating composite waterproof structure using solvent-free urethane foam and its construction method, which includes a solvent-free urethane foam layer with an insulating function formed from a solvent-free urethane foam and the solvent-free urethane. It is comprised of a waterproof layer formed on the outer surface of the foam layer.

Due to this technical feature, an insulating layer is formed by applying solvent-free urethane to the base surface in a direct adhesive foaming manner to a predetermined thickness, so that this insulating layer is continuous without any connection parts, and thus, it is similar to the existing type of connection between insulating sheets. Excellent waterproofing function can be maintained for a long period of time even after construction as there are no walkability problems or deformation of the sheet waterproofing layer that occurs in As a result, it prevents the deformation of the sheet waterproofing layer due to the flow, lifting, and thermal expansion of the insulation layer, improving the overall durability of the insulation composite waterproof structure and providing sustainability of the insulation and waterproofing functions. Solvent-free urethane is the base. Since it is applied to the surface in a foamed form with a certain thickness to form an insulating layer, the pre-grading of the base surface can be omitted or simplified, and as a result, the time and effort required for the entire process can be reduced.

However, this composite insulation waterproofing method using solvent-free urethane foam has a problem in that the durability of the waterproofing layer is low, so the waterproofing layer breaks after construction and water leaks into the urethane foam, reducing the insulation effect.

Accordingly, a waterproofing method that can improve insulation reinforcement by applying a new polyurea coating waterproofing agent with excellent durability on the CRC composite panel is emerging.

Therefore, the object of the present invention is tetramethylxylene diisocyanate, 4,4-dicyclohexylmethane diisocyanate, 1,4-cyclohexane diisocyanate, toluene 2,6-diisocyanate and 4,4-methylenediphenyl diisocyanate. Solution A, which is a mixture of polybutylene oxide glycol, cyclohexanedimethanol, ethyl 2-butylacetoacetate, and 2,4,6-tribromophenol, and 2,4-diaminotoluene and 2,6-tribromophenol in the mixed isocyanate complex. A highly durable polyurea coating waterproofing agent consisting of liquid B mixed with triethylphosphine, dimethylamine, cyclopentene, and pigment mixed with an amine complex mixed with diaminotoluene is manufactured and then applied to the CRC composite panel to provide waterproofing with reinforced insulation. To provide a method of manufacturing a polyurea coating waterproofing agent that can make it possible, and an insulation reinforcement waterproofing method using a polyurea coating waterproofing agent and a CRC composite panel.

Meanwhile, the object of the present invention is not limited to the object mentioned above, and other objects not mentioned can be clearly understood by those skilled in the art from the description below.

For this purpose, according to the present invention, tetramethylxylene diisocyanate, 4,4-dicyclohexylmethane diisocyanate, 1,4-cyclohexane diisocyanate, toluene 2,6-diisocyanate and 4,4-methylenediphenyl diisocyanate. 100 parts by weight of isocyanate complex mixed with isocyanate in a volume ratio of 1:0.8:0.6:0.5:0.2, 70 to 90 parts by weight of polybutylene oxide glycol, 60 to 80 parts by weight of cyclohexanedimethanol, and 50 parts by weight of ethyl 2-butylacetoacetate. A step of preparing solution A by mixing ~70 parts by weight and 30 to 50 parts by weight of 2,4,6-tribromophenol; 70 to 90 parts by weight of triethylphosphine, 60 to 80 parts by weight of dimethylamine, and cyclopentene per 100 parts by weight of an amine complex in which 2,4-diaminotoluene and 2,6-diaminotoluene are mixed at a volume ratio of 1:0.5. A method for producing a polyurea coating waterproofing agent is provided, including the step of mixing 50 to 70 parts by weight and 5 to 7 parts by weight of pigment to prepare solution B.

In addition, according to the present invention, the steps of preparing the liquid A and liquid B; A step of preparing the concrete surface; A CRC composite panel composed of isopink and CRC board is installed on the concrete surface, the joint area is reinforced, and then a primer is applied; Insulation reinforcement using a polyurea coating waterproofing agent and CRC composite panel, which includes the step of forming a coating layer by spraying and applying liquid A and liquid B on the upper surface of the primer layer at a volume ratio of 1:0.8 to 1:1 and curing. Waterproofing method is provided.

Therefore, according to the present invention, tetramethylxylene diisocyanate, 4,4-dicyclohexylmethane diisocyanate, 1,4-cyclohexane diisocyanate, toluene 2,6-diisocyanate and 4,4-methylenediphenyl diisocyanate Solution A, which is a mixture of polybutylene oxide glycol, cyclohexanedimethanol, ethyl 2-butylacetoacetate, and 2,4,6-tribromophenol, and 2,4-diaminotoluene and 2,6-tribromophenol in the mixed isocyanate complex. A highly durable polyurea coating waterproofing agent consisting of liquid B mixed with triethylphosphine, dimethylamine, cyclopentene, and pigment mixed with an amine complex mixed with diaminotoluene is manufactured and then applied to the CRC composite panel to provide waterproofing with reinforced insulation. can make it possible.

Meanwhile, the effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

Hereinafter, preferred embodiments of the present invention will be described in detail.

The polyurea coating film waterproofing agent according to a preferred embodiment of the present invention is basically tetramethylxylene diisocyanate, 4,4-dicyclohexylmethane diisocyanate, 1,4-cyclohexane diisocyanate, and toluene 2,6-diisocyanate. and Liquid A, which is a mixture of polybutylene oxide glycol, cyclohexanedimethanol, ethyl 2-butylacetoacetate, and 2,4,6-tribromophenol in an isocyanate complex mixed with 4,4-methylenediphenyl diisocyanate, It contains solution B, which is a mixture of triethylphosphine, dimethylamine, cyclopentene, and pigment in an amine complex mixed with 2,4-diaminotoluene and 2,6-diaminotoluene. As solution A and solution B are mixed, It is applied to a predetermined thickness and cured on a CRC composite panel composed of isopink and CRC board.

More specifically, the method for producing a polyurea coating waterproofing agent according to a preferred embodiment of the present invention includes tetramethylxylene diisocyanate, 4,4-dicyclohexylmethane diisocyanate, 1,4-cyclohexane diisocyanate, and toluene 2,6. -70 to 90 parts by weight of polybutylene oxide glycol and 60 parts by weight of cyclohexanedimethanol per 100 parts by weight of an isocyanate complex in which diisocyanate and 4,4-methylenediphenyl diisocyanate are mixed in a volume ratio of 1:0.8:0.6:0.5:0.2. A step of preparing solution A by mixing ~80 parts by weight, 50 to 70 parts by weight of ethyl 2-butylacetoacetate, and 30 to 50 parts by weight of 2,4,6-tribromophenol, and 2,4-diaminotoluene 70 to 90 parts by weight of triethylphosphine, 60 to 80 parts by weight of dimethylamine, 50 to 70 parts by weight of cyclopentene, and pigment for 100 parts by weight of an amine complex mixed with and 2,6-diaminotoluene in a volume ratio of 1:0.5. It includes the step of preparing liquid B by mixing 5 to 7 parts by weight, and liquid A and liquid B are mixed at a volume ratio of 1:0.8 to 1:1 and sprayed to form a highly durable polyurea coating waterproof layer.

In addition, the insulation reinforcement waterproofing method using a polyurea coating waterproofing agent and a CRC composite panel according to a preferred embodiment of the present invention includes a step of preparing the concrete surface, and after the CRC composite panel is installed on the concrete surface and the joint area is reinforced. A step of applying a primer, and a step of forming a coating layer by mixing liquid A and liquid B of the polyurea coating waterproofing agent prepared as above on the upper surface of the primer layer at a volume ratio of 1:0.8 to 1:1, spraying and curing. Includes etc.

Here, the CRC composite panel is an eco-friendly material and may be of a known composition having fire resistance, high strength, low thermal conductivity, water resistance, lightness, durability, and rootless replacement, and has a thickness of 60 mm to 350 mm to ensure insulation properties. , can be composed of isopink and CRC board.

The isocyanate complex is a material that provides adsorption and adhesion functions to the surface of the structure. It speeds up the reaction rate of the compositions of liquid A, the main substance, and liquid B, the hardener, so that the sprayed compositions are converted into prepolymers in a short period of time, and the reaction occurs. It performs a terminating function.

Tetramethylxylene diisocyanate is used as an accelerator in the production of isocyanate complexes and is a substance that improves the processability of the compositions and determines the durability of the coating layer through high stability. If the volume ratio exceeds 1, it may cause skin irritation or allergic reactions, etc. Due to safety issues, the health of workers is threatened, and if the volume ratio is less than 1, stability is reduced and the bond of the compositions that make up the coating layer becomes weak.

4,4-Dicyclohexylmethane diisocyanate is a substance that prevents the decay of isocyanate complexes and suppresses deterioration. If the volume ratio exceeds 0.8, the sterilizing function is too strong, causing a coating layer to form in swimming pools or water tanks. In this case, biodiversity is harmed, and if the volume ratio is less than 0.8, the isocyanate complex deteriorates and the function of the isocyanate complex cannot be exercised.

1,4-Cyclohexane diisocyanate is a substance that reacts with isocyanate complex compositions to form a urethane bond. If the volume ratio exceeds 0.6, the viscosity becomes too large, making mixing with liquid A compositions inconvenient. If the volume ratio is less than 0.6, there is a problem in that the storage stability of the liquid A mixtures is poor and the adhesive strength of the coating layer is reduced.

Toluene 2,6-diisocyanate is a substance that provides the strength and elasticity of the isocyanate complex. If the volume ratio exceeds 0.5, the strength and elasticity of the coating layer become too large, and the adhesive strength of the coating layer decreases. If the volume ratio is less than 0.5, the strength and elasticity of the coating layer become too small, which causes a problem in that the durability and shock absorbency of the coating layer deteriorate.

4,4-Methylene diphenyl diisocyanate is a material that provides insulation and heat resistance of the isocyanate complex. If the volume ratio of 0.2 is exceeded, the reaction rate of the isocyanate complex becomes too fast, causing a decrease in agitation and constructability, and the volume ratio of 0.2 is reduced. If it is less than the volume ratio, there is a problem that the heat resistance and insulation properties of the isocyanate complex are reduced.

Accordingly, the isocyanate complex includes tetramethylxylene diisocyanate, 4,4-dicyclohexylmethane diisocyanate, 1,4-cyclohexane diisocyanate, toluene 2,6-diisocyanate, and 4,4-methylenediphenyl diisocyanate. It is desirable to mix at a volume ratio of 1:0.8:0.6:0.5:0.2 to provide effects such as improved insulation, durability, agitation, stability, constructability, and workability.

Polybutylene oxide glycol has excellent viscosity and lubricity, improves the durability of the coating layer when spraying a coating waterproofing agent, and suppresses peeling of the coating layer even at high temperatures through its high flash point. It contains 70 to 90 parts by weight based on 100 parts by weight of the isocyanate complex. Parts by weight are mixed, and if it exceeds the above weight part, the viscosity of liquid A increases and the spraying workability decreases, and if it exceeds the above weight part, there is a problem in that the lubricity decreases and the agitation of the compositions decreases. It is good to have the same limited weight.

Cyclohexanedimethanol has high thermal stability and provides thermal insulation of the coating layer, and is mixed in an amount of 60 to 80 parts by weight based on 100 parts by weight of the isocyanate complex. If the above weight parts are exceeded, the flash point of the coating layer is lowered. It is vulnerable to fire, and if it is less than the above weight part, there is a problem that the insulation of the coating layer deteriorates, so it is better to have the weight part limited as above.

Ethyl 2-butylacetoacetate is mixed with the above compositions to provide a coating function by providing mechanical, physical, and chemical stability of the coating layer when applied, and is mixed in an amount of 50 to 70 parts by weight based on 100 parts by weight of the isocyanate complex. , if it exceeds the above weight part, the strength and elasticity of the coating layer decreases due to high durability and aging resistance, and if it is less than the above weight part, there is a problem in that the coating function is not secured and waterproofness is reduced. It is good to have the same limited weight.

2,4,6-tribromophenol provides the function of improving the lifespan of CRC composite panels composed of isopink and CRC board through preservative properties, and is mixed in 30 to 50 parts by weight based on 100 parts by weight of isocyanate composite. , if it exceeds the above weight parts, the sterilization function will be too strong and biodiversity will be harmed if the coating layer is formed in a swimming pool or water tank, etc., and if it is less than the above weight parts, the waterproofing of the coating layer will be impaired due to corrosion of the CRC composite panel. Since there is a problem that the thermal insulation property is also reduced, it is better to have a limited weight portion as described above.

The amine complex is a material that provides waterproofing by increasing the adhesion of the coating layer during construction and preventing layer separation during storage. It speeds up the bonding strength of the compositions of liquid A, the main agent, and liquid B, the hardener, so that the spray can be carried out in a short time. It performs the function of hardening the composition into a coating layer.

2,4-Diaminotoluene is a substance to increase the compressive strength of the coating layer. If the volume ratio is greater than 1, the adhesion to the surface of the structure decreases, and if the volume ratio is less than 1, the water repellency of the coating layer decreases. There is a problem of deterioration.

2,6-Diaminotoluene is a substance that improves the adhesion of the coating layer. If the volume ratio exceeds 0.5, the adhesion of the coating layer increases excessively when sprayed on the surface of the structure and is applied locally and intensively, resulting in flattening. There is a problem in that the adhesion of the coating layer decreases and planarization becomes impossible when the volume ratio is less than 0.5.

Accordingly, the amine complex is a mixture of 2,4-diaminotoluene and 2,6-diaminotoluene at a volume ratio of 1:0.5 to provide improved durability, agitation, stability, constructability, and workability. It is desirable to do so.

Triethylphosphine is used to control the gelation of the coating layer when reacted with the mixture of solution A after being sprayed on the surface of the structure, and is mixed in 70 to 90 parts by weight based on 100 parts by weight of the amine complex. In this case, the hardness of the coating layer becomes excessive and the elongation rate decreases, and if it is less than the above weight part, there is a problem in that the chain extension effect is insufficient and the mechanical strength of the coating layer decreases. Therefore, it is better to have a limited weight portion as described above. .

Dimethylamine is used to prevent the mixture of Liquid A, which has polymer properties, from settling and reducing stability before gelation of the coating layer. 60 to 80 parts by weight are mixed based on 100 parts by weight of the amine complex. In this case, the floatability of the high molecular weight mixture increases, and the agitation and adhesion decreases, thereby weakening durability. If the weight is less than the above weight part, the floatability of the high molecular weight mixture decreases, causing the coating layer to settle as the mixture settles after spraying. Since the surface is uneven and there is a problem in that waterproofness is reduced, it is better to have a limited weight portion as described above.

Cyclopentene is a surface active material that ensures that the bonding strength is appropriately maintained during the mixing and stirring of the compositions when spraying Liquid A and Liquid B. 50 to 70 parts by weight are mixed based on 100 parts by weight of the amine complex, and the weight parts are If it exceeds this weight, the bonding force of the high molecular weight mixtures becomes smaller and the floatability rather increases, and if it is less than the above weight part, the bonding force of the high molecular weight mixtures increases and there is a problem in that the floatability decreases. It is good to have a limited weight portion.

The pigment is a material that provides the color of the coating layer, and is mixed in an amount of 5 to 7 parts by weight based on 100 parts by weight of the amine complex. If the above weight part is exceeded, the viscosity of the coating layer is lowered and the physical properties are deteriorated. If it is less than , the color of the coating film becomes transparent or translucent, causing the surface of the structure to be transparent, which reduces aesthetics. Therefore, it is better to have a limited weight portion as described above.

Meanwhile, Liquid A, the main agent, and Liquid B, the hardener, are each injected into the spraying equipment and then mixed at a volume ratio of 1:0.8 to 1:1 just before spraying through different nozzles and simultaneously sprayed on the surface of the structure. If the volume ratio when spraying liquid A and liquid B is outside the above range, it will be difficult to control the curing time and the weight average molecular weight, resulting in poor curing, lifting, and deterioration of physical properties, resulting in many cracks and reduced flame retardant performance. Since there is a problem that workability is reduced, it is preferable to spray at a weight ratio within the limited range as described above.

Hereinafter, the effect of the insulation reinforcement waterproofing method using a polyurea coating waterproofing agent and a CRC composite panel according to a preferred embodiment of the present invention will be explained through specific examples.

Tetramethylxylene diisocyanate, 4,4-dicyclohexylmethane diisocyanate, 1,4-cyclohexane diisocyanate, toluene 2,6-diisocyanate and 4,4-methylenediphenyl diisocyanate in 1:0.7:0.5: 100 parts by weight of isocyanate complex mixed at a volume ratio of 0.3:0.1, 95 parts by weight of polybutylene oxide glycol, 85 parts by weight of cyclohexanedimethanol, 75 parts by weight of ethyl 2-butylacetoacetate, and 2,4,6-tribromo Solution A is prepared by mixing 55 parts by weight of phenol, and 65 parts by weight of triethylphosphine is added to 100 parts by weight of an amine complex in which 2,4-diaminotoluene and 2,6-diaminotoluene are mixed in a volume ratio of 1:0.3. Liquid B is prepared by mixing 55 parts by weight of dimethylamine, 45 parts by weight of cyclopentene, and 3 parts by weight of pigment.

Afterwards, the concrete surface is prepared, a CRC composite panel composed of isopink and CRC board is installed on the concrete surface, the joint area is reinforced, and a primer is applied, and the above liquid A and liquid B are mixed in 1:1 on the upper surface of the primer layer. It is mixed at a volume ratio of 0.75, sprayed, applied, and cured to form a coating layer.

Tetramethylxylene diisocyanate, 4,4-dicyclohexylmethane diisocyanate, 1,4-cyclohexane diisocyanate, toluene 2,6-diisocyanate and 4,4-methylenediphenyl diisocyanate in 1:0.8:0.6: 100 parts by weight of isocyanate complex mixed in a volume ratio of 0.5:0.2, 80 parts by weight of polybutylene oxide glycol, 70 parts by weight of cyclohexanedimethanol, 60 parts by weight of ethyl 2-butylacetoacetate, and 2,4,6-tribromo Solution A is prepared by mixing 40 parts by weight of phenol, and 80 parts by weight of triethylphosphine is added to 100 parts by weight of an amine complex in which 2,4-diaminotoluene and 2,6-diaminotoluene are mixed in a volume ratio of 1:0.5. Liquid B is prepared by mixing 70 parts by weight of dimethylamine, 60 parts by weight of cyclopentene, and 6 parts by weight of pigment.

Afterwards, the concrete surface is prepared, a CRC composite panel composed of isopink and CRC board is installed on the concrete surface, the joint area is reinforced, and a primer is applied, and the above liquid A and liquid B are mixed in 1:1 on the upper surface of the primer layer. It is mixed at a volume ratio of 1, sprayed, applied, and cured to form a coating layer.

Tetramethylxylene diisocyanate, 4,4-dicyclohexylmethane diisocyanate, 1,4-cyclohexane diisocyanate, toluene 2,6-diisocyanate and 4,4-methylenediphenyl diisocyanate are 1:1:0.8: 100 parts by weight of isocyanate complex mixed in a volume ratio of 0.6:0.5, 65 parts by weight of polybutylene oxide glycol, 55 parts by weight of cyclohexanedimethanol, 45 parts by weight of ethyl 2-butylacetoacetate, and 2,4,6-tribromo Solution A is prepared by mixing 25 parts by weight of phenol, and 95 parts by weight of triethylphosphine in 100 parts by weight of an amine complex in which 2,4-diaminotoluene and 2,6-diaminotoluene are mixed in a volume ratio of 1:0.8. Liquid B is prepared by mixing 85 parts by weight of dimethylamine, 75 parts by weight of cyclopentene, and 10 parts by weight of pigment.

Afterwards, the concrete surface is prepared, a CRC composite panel composed of isopink and CRC board is installed on the concrete surface, the joint area is reinforced, and a primer is applied, and the above liquid A and liquid B are mixed in 1:1 on the upper surface of the primer layer. It is mixed at a volume ratio of 1.5, sprayed, applied, and cured to form a coating layer.

Meanwhile, in order to evaluate the performance of the insulation reinforced waterproofing method using the polyurea coating waterproofing agent and CRC composite panel of each of the above examples, test specimens were manufactured as above in accordance with KSF 4922, etc. and then compared with the prototypes of Company A and Company B. Physical properties were measured, and the results are shown in Table 1 below.

Therefore, the insulation reinforced waterproofing method using a polyurea coating waterproofing agent and a polyurea coating waterproofing agent and a CRC composite panel according to a preferred embodiment of the present invention has heat transfer coefficient, tensile strength, elongation, adhesion strength, etc., as shown in Table 1 above. It was confirmed that it had superior properties to those of Company A or Company B in various physical properties, and through this, it was confirmed that it provides improved insulation and durability.

Although preferred embodiments of the present invention have been described above with reference to the attached drawings, those skilled in the art may make various substitutions and modifications without departing from the technical spirit or essential features of the present invention. and changes are possible, so it can be understood that it can be implemented in other specific forms. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive.

Claims (2)

Tetramethylxylene diisocyanate, 4,4-dicyclohexylmethane diisocyanate, 1,4-cyclohexane diisocyanate, toluene 2,6-diisocyanate and 4,4-methylenediphenyl diisocyanate in 1:0.8:0.6: For 100 parts by weight of the isocyanate complex mixed at a volume ratio of 0.5:0.2, 70 to 90 parts by weight of polybutylene oxide glycol, 60 to 80 parts by weight of cyclohexanedimethanol, 50 to 70 parts by weight of ethyl 2-butylacetoacetate, and 2,4 , 30 to 50 parts by weight of 6-tribromophenol are mixed and reacted to prepare solution A;
70 to 90 parts by weight of triethylphosphine, 60 to 80 parts by weight of dimethylamine, and cyclopentene per 100 parts by weight of an amine complex in which 2,4-diaminotoluene and 2,6-diaminotoluene are mixed at a volume ratio of 1:0.5. A method for producing a polyurea coating waterproofing agent, comprising the step of preparing liquid B by mixing 50 to 70 parts by weight and 5 to 7 parts by weight of pigment. A step of preparing solution A and solution B according to paragraph 1;
A step of preparing the concrete surface;
A CRC composite panel composed of isopink and CRC board is installed on the concrete surface, the joint area is reinforced, and then a primer is applied;
A polyurea coating waterproofing agent and CRC composite panel comprising the step of forming a coating layer by spraying and applying liquid A and liquid B on the upper surface of the primer layer at a volume ratio of 1:0.8 to 1:1 and curing. Insulation reinforcement waterproofing method using.