KR20220079215A - Method for manufacturing elastic coating penetration waterproofing agent - Google Patents

Abstract

Disclosed are an eco-friendly elastic coating waterproofing water-based paint composition for interior and exterior finishing materials of constructions and a method for manufacturing the same. The present invention is styrene butadiene rubber, propylene glycol, butyl acryl-2 ethylhexyl acrylate methyl methacrylic acid-acrylsilane copolymer, sodium polyacrylate-2 sodium carboxymethyl cellulose, titanium dioxide, clay powder, shellfish powder, carbonic acid It is made by mixing calcium powder, inorganic powder, inorganic pigment, neutral water, and colloidal silica.
According to this, water leakage and cracks occurring in the interior and exterior of the building due to various functionalities such as waterproof, heat resistance, corrosion resistance, anti-mildness, elasticity (stretchability), electrical insulation, chemical resistance, durability, weather resistance, abrasion resistance, adhesion, and aging resistance. , parts, breakage, wind pressure, puncture, contamination, discoloration, electric current, mold and bacteria propagation, radioactive radon emission, heat energy loss, noise, corrosion, and decay are prevented to semi-permanently preserve the lifespan of the structure It has the advantage of improving and protecting the elapsed water quality environment and urban environment.

Description

Method for manufacturing elastic coating penetration waterproofing agent

The present invention relates to a fast-diameter inorganic elastic coating waterproofing material composition comprising a redispersible polymer dispersing agent, an inorganic binder, natural fibers and waste tires, and a waterproofing method using the same, and is a technology for use as a waterproofing material for a building structure or civil engineering structure.

Recently, as the construction technology of concrete structures has been developed, difficult and complex problems have been considerably solved in the past during the construction of civil engineering and building structures, so that the construction is progressively.

If a defect due to water leakage occurs during waterproofing of a concrete structure, it will cause corrosion and damage to the finished concrete structure, thereby shortening the durability life of the concrete structure. Therefore, there is an urgent need for the development of waterproofing materials and waterproofing methods that can have a durable lifespan with concrete structures and exhibit a perfect waterproofing function.

A conventional penetrating waterproofing material corresponding to this. Materials such as rubber asphalt coating waterproofing material, urethane coating waterproofing material, asphalt sheet and coating composite waterproofing material, synthetic polymer sheet waterproofing material, stainless sheet waterproofing material, and cement mixed polymer coating film waterproofing material are manufactured and used.

However, penetration waterproofing materials are not widely used due to the uncertainty of waterproofing performance of penetration waterproofing materials as high-strength concrete (400kgf/cm2 ~ 1500kgf/cm2) structures have been constructed in consideration of the recent development and durability of concrete manufacturing technology.

The rubberized asphalt coating waterproofing material is manufactured in a liquid state by mixing an asphalt emulsifier and emulsifying it with water, adding latex, so it is easy to install. However, since asphalt is the main material for rubberized asphalt coating waterproofing materials, and there is no air permeability, defects such as floatation and volume change due to air pocket hardening caused by air bubbles are causing water leakage and flooding.

There are one-component and two-component types of urethane rubber-based waterproofing materials, and in general, a two-component type in which a liquid main agent (prepolymer) and curing agent (compound) are mixed on site at room temperature is mainly used. It forms a waterproof layer with Urethane coating waterproofing materials are classified according to the use of fillers. Tar urethane waterproofing materials use tar as a filler and are manufactured by mixing aromatic amines as crosslinking agents and adding stabilizers. It refers to a product manufactured by blending an improving agent such as carbon black, a filler, and a stabilizer for the purpose of improving the physical properties by using it. The color urethane waterproofing material uses polyols or amines, which are mixed with colorless fillers and improvers other than carbon black, and pigments, and the color tone is gray, green, brown, etc.

The urethane waterproofing material has good self-leveling properties, but for the waterproofing of the raised surface, use the one manufactured by giving the urethane waterproofing material thixotropy.

Urethane waterproofing material has good elasticity and resistance to micro-cracks. It has excellent water resistance, weather resistance, and chemical resistance, and can make a seamless waterproof layer through continuous construction, and is easy to install on structures with complex shapes. In addition, exposure waterproofing is possible and maintenance is easy.

However, the problem is that, due to the nature of urethane, the curing time is long, so the construction period is long. It is difficult to form a uniform coating film, and adhesion failure occurs when the moisture content of the substrate is 8% or more. In addition, since the coating film is formed by a chemical reaction, it is difficult to secure a predetermined quality if the correct mixing ratio is not observed. And, since it is weak to UV rays, the elongation decreases with age, and there are many accidents of breakage of the waterproofing layer, and there are many accidents of swelling due to lack of air permeability.

Composite waterproofing, which is a combination of asphalt sheet and coating, is a method developed in Japan since the 1970s. It was developed with the thermal method asphalt waterproofing layer, which is similar to the method of alternately stacking sheet-like asphalt roofing/felt and coating-like hot-melted asphalt.

In the composite waterproofing method of asphalt sheet and coating material, the composite waterproofing method (room temperature curing asphalt cold air method) is used in combination with a waterproofing sheet impregnated and coated with a polyester nonwoven fabric with the same material as the asphalt coating material, and the adhesive material is attached to only one side. Composite waterproofing method with improved asphalt sheet, asphalt and synthetic rubber as main components (improved asphalt room temperature method) There is a complex waterproofing method (laminated medium-thick chemical asphalt room temperature method). The problem is that the molten asphalt has an odor, and the performance degradation due to the heat of the insulation exposed waterproofing layer is fast and the cost of re-construction is large when pressing concrete is installed. In addition, there is a risk of burns due to high-temperature molten asphalt, and since there are many types of materials and tools to be used, there is a lot of preparation work. There is a possibility that the waterproof performance is influenced by the handling method of the shape roofing, and the end treatment of the waterproofing layer is difficult. The problems in construction are the lifting of the recessed corners, the weak adhesion of the expansion and contraction joints of the pressing layer, the easy damage by the roots of plants in the exposed waterproofing layer, and the occurrence of swelling in the exposed waterproofing layer.

Synthetic polymer sheet waterproofing material is evaluated to have good followability and conformability to the base material because of its high elongation ability. Synthetic polymer sheet waterproofing material is produced in the form of a sheet at the factory, and the quality and dimensions (thickness, width, length) of the material are properly managed. Moreover, it has sufficient durability such as weather resistance (light resistance, ozone resistance, etc.), water resistance, and heat resistance, so it is less affected by temperature change and has a variety of colors, making it a suitable waterproofing material for the roof exposed waterproofing layer. Synthetic polymer sheet waterproofing uses rubber sheets produced as standard products in factories as the main material, so the material properties are homogeneous and followability to cracks in the ground. It is suitable for the exposure method because there is little change in physical properties according to temperature, and it does not soften at high temperature or harden at low temperature.

However, the problem is that sand, gravel, dust, etc. are easy to adhere to the surface while waiting for drying after applying the adhesive, and since there are many materials including organic solvents, there is a high risk in a closed area or in a poorly ventilated place, and the housekeeping of the adhesive It is difficult to adjust as time is influenced by climate, weather, etc., and finishing around circular appendages (pipes, etc.) is difficult. In addition, it is difficult to process the edge of the synthetic rubber sheet waterproofing. After construction, the edge of the sheet shrinks and it is easy to float, and it is difficult to secure the watertightness of the joint. During construction, it is common to forget the sealing treatment of the overlapping three sheets, and the sheet is easily damaged.

Metal plate waterproofing construction is a method of forming a waterproof layer by welding thin metal plates to each other while processing a metal plate of a certain width in the field and fixing it to the base. As materials, stainless steel sheet and titanium sheet are used for front waterproofing, copper sheet and lead sheet are used for partial waterproofing, and stainless steel sheet is mainly used. Stainless steel sheet waterproofing refers to making a waterproofing layer by bending both sides of a thin stainless steel plate with a width of 275 to 495 mm in the field, and then welding the stainless steel plate while fixing it to the ground with a special fixing hardware. The metal plate waterproofing method is an insulation method without attachment to the base, so it is not affected by the behavior of the sphere, and the base surface treatment is simple. However, if the material is selected incorrectly, there is a possibility that rust may occur, and the material cost is high, which is uneconomical. The preparatory work for construction is complicated, sheet metal is required, and the construction must be precise, so skilled workers are required for the work. Pinholes may occur during the joint welding process, and it is difficult to check after work because there are many welding places, and the use of the roof is difficult because the joint is in the shape of an upper protrusion.

Cement mixed polymer waterproofing material is also called inorganic elastic coating waterproofing material. It is a component of a water-dispersible synthetic resin emulsion (polymer dispersant) that hardens by drying or condensation reaction with a cement-based inorganic binder that hardens by reacting with water. It is a waterproofing material made up of

This waterproofing material is a material richer in polymer component than polymer cement mortar or cement liquid waterproofing agent, and is a coating-type waterproofing material that is not significantly affected by the wetness of the waterproofing substrate and has elasticity to respond to the behavior of the waterproofing substrate. It has been called an inorganic elastic waterproofing material.

Therefore, the inorganic elastic coating waterproofing material effectively manages the ratio of moisture including the redispersible polymer dispersant, inorganic binder component, and water added to the environment, so it can be installed in a wide range of humidity from high-humidity surfaces to low-humidity surfaces. has

Mainly concrete structures contain 10 to 25% moisture even if they are well dried, and most of the concrete structures containing 65% to 100% moisture in underground concrete structures that are not above the ground are mostly.

Regardless of the material, if the moisture content of the waterproofing material is high, it is quite difficult to attach and apply the waterproofing material to the concrete. It is a way to reduce defects by doing construction.

In addition, water vapor is generated when concrete is dried, and the waterproof layer with many waterproofing materials is not breathable, so it is known to be the cause of leaks and flooding defects due to floating, long-term adhesion deterioration, and air pockets.

Considering the characteristics of these concrete structures, the general performance required for an inorganic elastic coating waterproofing material is good workability, not to pass water or chlorine, moisture permeability, carbon dioxide permeability resistance, and elasticity to hold microcracks in particular. There is a significant problem in that the adhesive strength to the substrate, weather resistance, as well as elasticity in the winter season, are minimized and alkali resistance is also minimized.

In order to solve the problem of the inorganic elastic coating waterproofing method, a technology related to a water-dispersible elastic coating waterproofing material containing waste tire powders in a wet base surface construction and a breathable organic-inorganic mixed type was recently developed and presented (Related patents - Patent No. 0357367, Patent No. 0452120, No. 0573381, etc.), however, there are a number of problems that need to be improved in the production, distribution and construction of waterproofing materials.

Liquid resin and powder 2K products have some difficulties due to the efficiency of the production process and quality control, and difficulties in inventory management due to the winter storm, and even in distribution, packaging costs, logistics costs, and waste disposal costs due to 2K packaging are significantly incurred. .

In addition, the construction process is often 5 to 6 times, such as one primer, three to four intermediate coats, and one top coat. Therefore, the labor cost is also generated more than necessary. In addition, since it takes 4 to 10 hours for the waterproofing material to harden and dry between each process, there is a problem with labor management.

In addition, the post-hydraulic reaction of cement continues even after construction, thereby reducing the flexibility of the coating film and lowering crack resistance and durability, resulting in excessive maintenance costs.

Among these problems, problems related to durability, excessive repetitive construction process and construction efficiency are related to Samyang Genex's Patent Registration No. 0792015 (December 28, 2007) [Self-filling mortar composition with improved strength and durability] or Kangwon University The same can be pointed out in Patent Registration No. 0824374 (April 16, 2008) [Absorptive Polymer Cement Concrete Composition] of Industry-University Cooperation Foundation.

Therefore, the present invention is difficult to waterproof the wet concrete surface with waterproof construction methods such as asphalt-based, urethane-based, and epoxy-based organic/inorganic complex systems, which are widely applied so far, and permeability to water vapor generated from the concrete base surface (breathability). Since there is no such thing, a lot of air pockets with the base surface occur, and it was pointed out as the cause of the defect in not reacting with water due to the characteristics of the material.

Of course, in order to solve this problem, a technology related to a water-dispersible elastic coating waterproofing material using waste tire powder as a wet base surface construction and a breathable organic-inorganic mixed type was recently proposed, and the quality of waterproofing has been significantly improved. There are difficulties in inventory management due to the inefficiency of product quality, quality control, and freezing damage in winter, and excessive packaging costs, logistics costs and waste treatment costs due to 2K packaging even during distribution, excessive construction process, hardening and drying As it takes 4 to 10 hours to complete, the need for improvement is also pointed out in situations that are not directly related to the quality of waterproofing, such as delay in construction and excessive cost.

Therefore, the present invention mixes a standard mixture using a redispersible polymer dispersant, an inorganic binder, natural fibers, and waste tires in a high-performance zero-gravity powder mixer, and then mixes a standard amount of water at the site of a powder-type 1K waterproofing material and constructs it manually or by machine By improving the waterproofing material to a quick-drying and quick-drying type and constructing it, it reduces costs such as shortening construction period and labor costs, and improves the durability of the waterproofing material by continuously maintaining the elasticity of the coating film by minimizing the post-hydraulic reaction. By developing the As a technology for recycling waste tires), we provide a water-repellent composition for an inorganic elastic coating film using a redispersible polymer dispersant and waste tires that can realize technological advancement for the development of environmentally friendly building materials and improvement of construction technology using the same, and a waterproofing method using the same. aim to

In addition, the present invention uses ethylene vinyl acetate copolymer or styrene acrylic copolymer as the redispersible polymer dispersant, and an inorganic mixture (High Aluminate Cement, a combination of ordinary Portland cement and anhydrite) as the main binder, and waste tire powder And it aims to provide a fast-diameter, quick-drying elastic coating waterproofing material using fine silica powder as a filler, and a waterproofing method using the same, and an inorganic elastic coating waterproofing composition that can be used as a waterproofing material for buildings and civil engineering structures.

Furthermore, the present invention is an organic-inorganic composite elastic coating waterproofing material that supplements the brittle fracture phenomenon, which is a disadvantage of the inorganic binder, and reinforces the strength of the polymer by combining the rigidity of the inorganic binder and the ductility of the polymer. It shortens construction period and improves chemical durability with quick-drying properties. Using natural fibers, it extends pot life, suppresses surface cracks, and improves adhesion, and shortens the construction process by increasing the thickness of one-time construction and improves workability. made it In addition, it aims to provide an inorganic elastic coating waterproofing material composition that improves productivity by developing 1K powder form of existing 2K products, improves economic feasibility by reducing packaging and logistics costs, and improves construction efficiency.

In addition, the present invention uses a redispersible polymer dispersant, inorganic binder, filler, natural fiber, waste tire, and additives for performance improvement, pigments, mixed in a high-performance powder mixer for 3-5 minutes, and then packaged in each packaging unit This is a manual or automated mechanical waterproofing construction method after mixing an appropriate amount of water in the It is a technology that can reduce maintenance costs by continuously maintaining the elasticity of the coating film by minimizing chemical and post-hydraulic reactions, and also reduces production costs, distribution costs and waste treatment costs by developing in powder form, and topcoat coating materials An object of the present invention is to provide a construction method using an inorganic elastic coating waterproofing material composition that can shorten the construction process and increase the thickness of the intermediate construction process from 3 to 4 times to 2 times.

In order to achieve the above object, the inorganic elastic coating waterproofing material according to the present invention contains 75 to 84 parts by weight of an inorganic binder, 45 to 51 parts by weight of a filler, 14 to 16 parts by weight of natural fiber, and waste based on 100 parts by weight of the redispersible polymer dispersant. 41 to 45 parts by weight of the tire, 14 to 17 parts by weight of additives for performance improvement, and 0.5 to 1% by weight of natural fibers based on the total content of the inorganic elastic coating waterproofing material composition.

In the inorganic elastic coating waterproofing material according to the present invention, the redispersible polymer dispersant is composed of ethylene vinyl acetate copolymer or styrene acrylic copolymer, or a combination thereof, and the inorganic binder is 22 to 24 parts by weight of ordinary Portland cement, alumina cement 31 to 36 parts by weight, and a mixture consisting of 22 to 24 parts by weight of gypsum, and the medium is preferably silica sand,

Further, the additive consists of a fluidizing agent, a thickener, an antifoaming agent, a retarder and a curing accelerator, and the length of the natural fiber is preferably 100 to 2000 μm, and 11 to 12 parts by weight of the pigment is included.

The inorganic elastic coating waterproofing material composition and the waterproofing method using the same according to the present invention are powder-type waterproofing materials, and are excellent in quick-hardening, quick-drying, acid resistance, durability and environmental friendliness, as well as shortening of air and processes, maximizing production efficiency, As a waterproofing material that can reduce logistics costs and install equipment on site, it can be said that it has a very high application value as a waterproofing material for construction and civil engineering.

In particular, due to the characteristics of the material, it is easy to install even in the wet side, and it can be produced in the winter season, so it is a waterproof material that is very advantageous in terms of production management through securing sufficient stock. can be minimized, and cans, which are containers for liquid products, can be packaged in paper bags or big bags, and silo transportation can be made possible to significantly reduce logistics costs. can save In addition, it is possible to reduce the construction cost required for the waterproofing process by shortening the process and reducing the labor cost due to mechanized construction.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments to be described below are intended to describe in detail enough to be easily implemented by a person of ordinary skill in the art to which the present invention pertains, thereby limiting the technical spirit and scope of the present invention. doesn't mean

In addition, the size or shape of the components shown in the drawings may be exaggerated for clarity and convenience of explanation, and terms specifically defined in consideration of the configuration and operation of the present invention may vary depending on the intention or custom of the user or operator. It should be noted that definitions of these terms should be made based on the content throughout this specification.

The present invention provides an eco-friendly elastic coating waterproofing water-based paint composition for interior and exterior finishing materials of constructions. Since the present invention relates to an eco-friendly elastic film waterproofing water-based paint composition different from oil-based paint, the composition itself does not require an organic solvent, and does not contain air pollution, water environment pollution, and volatile harmful substances harmful to the human body. not.

The eco-friendly elastic film waterproofing water-based paint composition for interior and exterior finishing of constructions according to the present invention is environmentally friendly, water-soluble, non-toxic, odorless, and harmless to each component in order to be able to perform multi-purpose and various functions at the same time Polymer synthetic rubber materials, natural inorganic materials, and neutral water with a hydrogen ion concentration of about 7 ph were carefully selected and selected.

[First embodiment]

As shown in FIG. 1, the method for producing a water-based paint composition according to the first embodiment of the present invention is,

12 to 16 wt% of propylene glycol;

butylacryl-2ethylhexylacrylate methylmethacrylic acid-acrylsilane copolymer 18-25 wt%;

12 to 15 wt% of sodium polyacrylate-2 sodium carboxymethylcellulose;

13 to 17% by weight of colloidal silica;

28 to 35% by weight of neutral water;

A transparent matte water-based paint composition is prepared by mixing.

Propylene glycol maintains stable mixing and viscosity of materials despite temperature changes, and enhances emulsification and dispersibility, light resistance, antiseptic properties, and anti-mold properties (sterilization of air, prevention of fungal growth).

The reason for using propylene glycol is that it is a hydrophilic emulsifier that maintains the viscosity stably due to the emulsion stability of the composition even when temperature changes, prevents decay and freezing, and prevents the propagation of mold bacteria by sterilization and aging by light resistance. This is because it is a hydrophilic hydroxide ion non-electrolyte product.

In addition, when the amount of propylene glycol is less than 12% by weight based on the total weight, emulsion stability, viscosity and functionality are reduced, and when it exceeds 16% by weight, adhesion is reduced and peeling may occur.

Butylacryl-2ethylhexylacrylate methylmethacrylic acid-acrylsilane copolymer (butylacryl-2ethylhexylacrylatemethylmethacryl acid-acrylsilanecopolymer) can stably maintain the mixing bond and viscosity of materials despite temperature changes, Weather resistance, heat resistance, electrical insulation, extensibility, and uniform curing and adhesion are strengthened.

The reason for using the butyl acryl-2 ethylhexyl acrylate methyl methacrylic acid-acrylsilane copolymer is that it is a hydrophobic emulsifier and cross-links with a hydrophilic material to stably maintain the mixed bond of the material components even when the temperature changes, anti-fouling, anti-corrosion properties This is because it forms a non-electrolyte elastic rubber film with functional properties such as resistance, weather resistance, heat resistance, and adhesion.

In addition, when the butyl acryl-2 ethylhexyl acrylate methyl methacrylic acid-acrylsilane copolymer is less than 18% by weight based on the total weight, the elasticity and viscosity adjusting function of the coating film are reduced, and when it exceeds 25% by weight, As the viscosity increases and the curing time of the coating increases due to uneven mixing and bonding, uneven marks may occur after drying.

Sodium polyacrylate-2 sodium carboxymethylcellulose maintains stable mixing bonding and viscosity despite temperature changes, high temperature resistance, salt resistance, acid resistance, alkali resistance, dispersion stability, foam stability, It enhances abrasion resistance, uniform hardening and adhesion.

The reason for using the sodium polyacrylate-2 carboxymethyl cellulose sodium is as a hydrophilic emulsifier, which stably maintains the viscosity and mixed bonding of the material components even when temperature changes, and the high temperature, salt resistance, acid resistance, alkali resistance, and dispersion of the coating film It is because of the stability, foam stability, abrasion resistance, uniform curing and adhesion, as well as the formation of a hard film as a non-electrolyte material, and quick curing with quick drying time to the touch and complete drying time.

In addition, when sodium polyacrylate-2 sodium carboxymethyl cellulose is less than 12% by weight based on the total weight, curability may be reduced, and if it exceeds 15% by weight, the viscosity increases due to rapid curing, and Delamination and cracks may occur.

As a hydrophilic material, colloidal silica maintains stable mixing and viscosity even when temperature changes, and strengthens the waterproofness, heat resistance, abrasion resistance, impact resistance, aging resistance, antistatic properties, and uniform hardness of the coating film.

The reason for using colloidal silica is that it is a hydrophilic colloidal silica without harmful substances. It maintains stable mixing of materials and viscosity even when temperature changes, dispersibility, water resistance, heat resistance, abrasion resistance, impact resistance, antistatic properties, and homogeneous coating film. This is because the hardness is continuously maintained.

In addition, when the amount of the colloidal silica is less than 13% by weight based on the total weight, the hardness of the coating film may be reduced. can be

The reason for using neutral water is that it is water with a hydrogen ion concentration of about 7PH, and it is used as a solvent and a diluent to adjust the viscosity, drying time, and color clarity of the composition.

In addition, when the amount of neutral water is less than 28% by weight based on the total weight, it is difficult to mix the composition, the bonding of material components may be reduced, and if it exceeds 35% by weight, an irregular coating film may be formed.

Styrene butadiene rubber (sbr: styrene butadiene rubber) is an eco-friendly elastic coating waterproofing water-based paint composition for interior and exterior finishing materials of constructions. It is intended to enhance resistance, antiseptic, electrical insulation, chemical resistance, oil resistance, weather resistance, extensibility, and adhesion and elasticity.

The reason for using Styrene Butadiene Rubber (Styrene Butadiene Rubber suspension polymerization) is that it is a hydrophilic emulsifier, and by suspension polymerization of an emulsified material and an inorganic material according to the hydrophilic polymerization method, the viscosity is stably maintained with emulsion stability despite temperature changes, and the coating film is waterproof. It is a non-electrolyte protective colloidal synthetic rubber liquid with enhanced functions of resistance, anti-mildness, corrosion resistance, antiseptic property, electrical insulation, chemical resistance, oil resistance, weather resistance, extensibility, adhesion and elasticity. because it is formed.

When the amount of styrene butadiene rubber is less than 15% by weight based on the total weight, the viscosity of the composition may be diluted and adhesion may be reduced. After drying, parts and cracks may occur.

When the amount of propylene glycol is less than 12% by weight based on the total weight, emulsion stability, viscosity and functionality are reduced, and when it exceeds 16% by weight, adhesion is reduced and peeling may occur.

When the amount of butyl acryl-2 ethylhexyl acrylate methyl methacrylic acid-acrylsilane copolymer is less than 12% by weight based on the total weight, the elasticity and viscosity adjusting function of the coating film are reduced, and when it exceeds 25% by weight, the viscosity increases. As the curing time of the coating increases due to the high and uneven mixing and bonding, uneven marks may occur after drying.

If sodium polyacrylate-2 sodium carboxymethylcellulose is less than 12% by weight based on the total weight, curability may be reduced, and if it exceeds 15% by weight, the viscosity increases due to rapid curing, and peeling off the coating film and cracks may occur.

When the amount of colloidal silica is less than 13% by weight based on the total weight, the hardness of the coating film may be reduced. have.

On the other hand, in the present invention, 25 to 35 wt% of neutral water is included to stably maintain the mixing bonding and viscosity of materials even when temperature changes, and to adjust the viscosity, drying time, and color clarity.

The reason for using neutral water is that it is water with a hydrogen ion concentration of about 7PH, and it is used as a solvent and a diluent to adjust the viscosity, drying time, and color clarity of the composition.

In addition, when the amount of neutral water is less than 25% by weight based on the total weight, it is difficult to mix the composition, the bonding of material components may be reduced, and if it exceeds 35% by weight, an irregular coating film may be formed.

[Third embodiment]

As shown in FIG. 3, the manufacturing method of the water-based paint composition according to the third embodiment of the present invention is,

5 to 13 wt% of styrene butadiene rubber (sbr: styrene butadiene rubber);

propylene glycol (propyleneglycol) 2 to 6% by weight;

butylacryl-2ethylhexylacrylate methylmethacrylic acid-acrylsilane copolymer (butylacryl-2ethylhexylacrylatemethylmethacryl acid-acrylsilan ecopolymer) 8 to 15% by weight;

2 to 5 wt% of sodium polyacrylate-2 sodium carboxymethylcellulose;

0.1 to 0.6 wt% of titanium dioxide (TiO2);

White clay powder 12 to 15% by weight;

2 to 4% by weight of shellfish powder;

10 to 15% by weight of calcium carbonate powder;

5 to 8% by weight of inorganic powder;

15 to 20% by weight of inorganic pigments;

15 to 25% by weight of neutral water;

A monochromatic aqueous paint composition is prepared by mixing 3 to 7 wt% of colloidal silica.

When the amount of the styrene butadiene rubber is less than 5% by weight based on the total weight, the viscosity of the composition may be diluted and adhesion may be reduced. After drying, parts and cracks may occur.

When the amount of propylene glycol is less than 2% by weight based on the total weight, emulsion stability, viscosity, and functionality are reduced, and when it exceeds 6% by weight, adhesion is reduced and peeling may occur.

When the amount of butyl acryl-2 ethylhexyl acrylate methyl methacrylic acid-acrylsilane copolymer is less than 8% by weight based on the total weight, the elasticity and viscosity adjustment function of the coating film are reduced, and when it exceeds 15% by weight, the viscosity increases. As the curing time of the coating increases due to the high and uneven mixing and bonding, uneven marks may occur after drying.

Titanium dioxide stably maintains the mixed bonding and viscosity of materials even when temperature changes, and strengthens the corrosion resistance, durability, flame resistance, acid resistance, alkali resistance, abrasion resistance, flame retardancy and color retention of the coating film.

The reason for using titanium dioxide (TiO2) is that it is a natural inorganic powder without harmful substances, and the viscosity and mixing bond of material components are stably maintained even when temperature changes. This is because the flame retardant functionality and color durability are maintained. In addition, when the amount of titanium dioxide (TiO 2 ) is less than 0.1 wt % based on the total weight, the color lasting power of the coating film may be reduced, and when it exceeds 0.6 wt %, bubbles may be generated.

White clay powder maintains stable mixing and bonding of substances and viscosity even when temperature changes It is intended to prevent emission, emit far-infrared rays, reduce thermal energy, and enhance hiding power and hardness.

The reason for using white clay powder is that it is a natural inorganic powder with a size of 300 mesh to 400 mesh, also called kaolin, which is free from harmful substances. This is because the function of adsorption of and harmful substances, prevention of radon emission, far-infrared emission, thermal energy saving, and the longer the drying time, the stronger and more stable the hiding power and hardness.

In addition, when the amount of the clay powder is less than 12% by weight based on the total weight, the hiding power and hardness of the coating film may decrease, and when it exceeds 15% by weight, it is difficult to mix the composition, and a lot of neutral water is added The coating film may be formed irregularly.

Shell powder is intended to stably maintain the mixing and bonding of substances and viscosity despite temperature changes, and to enhance the corrosion resistance, aging resistance, antiseptic properties, flame retardancy and adsorption of harmful substances, prevention of radon emission, and color clarity.

Shell powder is a natural mineral powder free of harmful substances, also called aloe, obtained by pulverizing shells. It maintains the viscosity and mixing bond of substances stably even when temperature changes. This is because functionality and color clarity are continuously maintained.

In addition, when the amount of the shellfish powder is less than 2% by weight based on the total weight, the durability of functionality and color clarity may be reduced, and if it exceeds 4% by weight, a cost increase may occur.

Calcium carbonate powder is intended to stably maintain the mixing bonding and viscosity of materials even when temperature changes, and to strengthen the flame resistance, hiding properties, heat resistance, curability, flame retardancy, aging resistance, hardness, and light reflection and diffusion power of the coating film.

The reason for using calcium carbonate powder is that it is a natural inorganic powder without harmful substances. It maintains the viscosity and mixing bond of the material stably even when the temperature changes. Or, it is because the object and surroundings become brighter due to the light reflection and diffusion power by the light of the electric lamp.

In addition, when the amount of the calcium carbonate powder is less than 10% by weight based on the total weight, the light reflection and diffusion power of the coating film may be reduced. .

Inorganic powder is intended to stably maintain the mixing bonding and viscosity of materials even when temperature changes, and to strengthen the heat resistance, hardening, flame retardancy, hiding power and thermal energy saving of the coating film.

Inorganic powder is an inorganic powder free of harmful substances such as lime and silica sand, and it maintains the mixing bond and viscosity of substances stably even when temperature changes, and improves the functionality and hardness of the coating film's hiding properties, heat resistance, hardenability, and flame retardancy. .

In addition, when the inorganic powder is less than 5% by weight based on the total weight, the hardness of the coating film may be reduced, and when it exceeds 8% by weight, peeling and cracks may occur in the coating film.

Inorganic pigments are intended to stably maintain the mixing bonding and viscosity of substances even when temperature changes, and to enhance hiding, anti-mildew, moisture-proof, anti-corrosion, dispersibility, flame retardancy, durability, and semi-permanent color clarity.

The reason for using the inorganic pigment is that it is an inorganic colorant material that does not contain harmful substances used as monochromatic materials. It maintains the viscosity and mixing bond of the material stably even when the temperature changes, hides, anti-mildew, moisture-proof, anti-corrosion, dispersibility, This is because it has high flame retardancy, durability and semi-permanent color clarity.

If the inorganic pigment is less than 15% by weight based on the total weight, the hiding power and color clarity of the coating film may be reduced, and if it exceeds 20% by weight, irregular color clarity and cost increase of the coating film may occur.

When the amount of neutral water is less than 15% by weight based on the total weight, it is difficult to mix the composition, the bonding of material components may be reduced, and if it exceeds 25% by weight, an irregular coating film may be formed.

When the amount of colloidal silica is less than 3% by weight based on the total weight, the hardness of the coating film may decrease. have.

Hereinafter, specific examples prepared by the process steps of the eco-friendly elastic coating waterproofing water-based paint composition for interior and exterior finishing materials of constructions according to the present invention and experimental results thereof will be described.

[Production Example 1]

1) With respect to 14.2 kg of styrene butadiene rubber, 5.7 kg of propylene glycol and 22.8 kg of butyl acryl-2 ethylhexyl acrylate methyl methacrylic acid-acrylsilane copolymer are sequentially put into the tank and stirred slowly at room temperature.

2) Add 5.7 kg of sodium polyacrylate-2 sodium carboxymethylcellulose and slowly stir at room temperature.

3) Add 8.5 kg of colloidal silica and stir slowly at room temperature.

4) 42.8 kg of neutral water was added and stirred slowly at room temperature to prepare 99.7 kg of a uniform elastic film waterproofing water-based paint composition.

The elastic coating waterproofing water-based paint composition was a viscous, clear and transparent white liquid, and after coating the white liquid on the surface of concrete, metal, steel, wood, plastic, stone, etc., it dries quickly and dried. After that, an elastic rubber coating film of smooth and hard elasticity was formed and had a matte, transparent color.

[Production Example 2]

1) With respect to 18.3 kg of styrene butadiene rubber, 21.1 kg of butyl acryl-2 ethylhexyl acrylate methyl methacrylic acid-acrylsilane copolymer is sequentially put into a tank and stirred slowly at room temperature.

2) Sodium polyacrylate-2 Sodium carboxymethylcellulose 7 kg of sodium is added and stirred slowly at room temperature.

3) Add 9.8 kg of colloidal silica and stir slowly at room temperature.

4) 35.2 kg of neutral water was put into a stirrer and stirred slowly at room temperature to obtain 99.8 kg of a uniform elastic coating film waterproofing water-based paint composition,

The elastic coating waterproofing water-based paint composition was a viscous, clear and transparent white liquid, and after coating the white liquid on the surface of concrete, metal, steel, wood, plastic, stone, etc., it dries quickly and dried. After that, a rubber elastic coating film of soft and hard elasticity was formed, and it had a glossy, transparent color.

[Production Example 3]

1) 13 kg of the mixture prepared in Preparation Example 2 was added to 10 kg of the mixture prepared in Preparation Example 1, and stirred slowly

2) Add 0.5 kg of titanium dioxide and stir slowly.

3) Add 15 kg of white clay powder and stir slowly.

4) Add 3.5 kg of shellfish powder and stir slowly.

5) Add 15 kg of calcium carbonate powder and stir slowly.

6) Add 8 kg of inorganic powder and stir slowly.

7) Add 20 kg of white inorganic pigment selected from various color inorganic pigments and stir slowly.

8) 15 kg of neutral water was added, stirred slowly at room temperature for a certain period of time, and then rapidly stirred again to obtain 100 kg of a uniform elastic film waterproofing water-based paint composition.

The elastic coating waterproofing water-based paint composition was a viscous thick white liquid, and after coating the white liquid on the surface of concrete, metal steel, wood, plastic material, stone, etc., it dries quickly and after drying was more shiny, and a rubber elastic film with high hardness and elasticity was formed, and had a glossy white color.

In order to confirm the electrical insulation resistance performance evaluation of the eco-friendly elastic coating waterproofing water-based paint composition for interior and exterior finishing materials of constructions according to Examples 1, 2, and 3, a test was performed with a 1000V insulation resistance meter.

The final result regarding the electrical insulation resistance performance evaluation test result (test completion date, 2014.08.21) for the eco-friendly elastic film waterproofing water-based paint composition for interior and exterior finishing materials of the present invention in the form of a test report is shown as follows will be.

In the above, the eco-friendly elastic coating waterproofing water-based paint composition for interior and exterior finishing materials for constructions according to the present invention and the effects of its use have been described in detail above, but this is only a description of the most preferred embodiment of the present invention. It is not limited, and the scope is determined and limited by the appended claims.

It was directly heated with a flame for 20 to 40 minutes, and after heating, the flame retardant performance was confirmed as shown in the picture.

Although the present invention has been described with reference to the above-mentioned preferred embodiments, it will be readily recognized by those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the invention, and all such changes and modifications are attached to the appended claims. It is obvious that it falls within the scope of the claims.

Claims (2)

12 to 16 wt% of propylene glycol;
butylacryl-2ethylhexylacrylate methylmethacrylic acid-acrylsilane copolymer 18-25 wt%;
12 to 15% by weight of sodium polyacrylate-2 sodium carboxymethylcellulose;
13 to 17% by weight of colloidal silica;
28 to 35% by weight of neutral water;
A method of manufacturing an eco-friendly elastic coating waterproofing water-based paint composition for interior and exterior finishing materials of constructions, characterized in that it is made by mixing. 5 to 13 wt% of styrene butadiene rubber (sbr: styrene butadiene rubber);
Propylene glycol (propyleneglycol) 2 to 6% by weight;
8 to 15 wt% of butylacryl-2ethylhexylacrylate methylmethacrylic acid-acrylsilane copolymer (butylacryl-2ethylhexylacrylatemethylmethacryl acid-acrylsilan ecopolymer);
Sodium polyacrylate-2 sodium carboxymethylcellulose sodium (Sodiumpolyacrylate-2Sodiumcarboxymethylcellulose) 2 ~ 5% by weight;
0.1 to 0.6 wt% of titanium dioxide (TiO2);
White clay powder 12 to 15% by weight;
2 to 4 wt% of shellfish powder;
10 to 15% by weight of calcium carbonate powder;
5 to 8% by weight of inorganic powder;
15 to 20% by weight of inorganic pigments;
15 to 25% by weight of neutral water;
3 to 7 wt% colloidal silica
A method of manufacturing an eco-friendly elastic coating waterproofing water-based paint composition for interior and exterior finishing materials of constructions, characterized in that it is made by mixing.