KR20140068420A - Waterproof and anticorrosion painting membrane for water treatment system and method for painting the same - Google Patents

Abstract

An embodiment of the present invention relates to a waterproof and anti-corrosion film of a water treatment system in which the waterproof properties and anti-corrosion properties are excellent and which is easily constructed and can obtain enough safety, and to a method for coating the film. The waterproof and anti-corrosion film of a water treatment system forms a one-pack type waterproof and anticorrosion material by combining a water-soluble silicon acryl copolymerization emulsion resin with an acryl urethane copolymerization emulsion resin, and forms at least three layered waterproof and anti-corrosion layer at the bottom of the water treatment system by the water proof and anti-corrosion material.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a waterproof coating film for a water treatment system,

The present invention relates to a waterproof coating film of a water treatment system and a coating method of the coating film, and more particularly, to a waterproof coating film and coating of the coating film of a water treatment system having excellent waterproofness and anticorrosion property, ≪ / RTI >

In recent years, water pollution has been intensified due to various environmental factors. Therefore, research and development are being carried out in various ways by recognizing the necessity of advanced water treatment technology with improvement of water treatment method. Particularly, the regulations for water used for edible, agricultural or industrial use are on the increase, and consumers are demanding cleaner water.

The water treatment system has a plurality of treatment tanks formed of a concrete structure. That is, in the water treatment system, a treatment tank for treating water by water treatment is required, and the treatment tank is usually made of a concrete structure.

However, in terms of design, construction, new materials, and new methods for ensuring the durability of the concrete structure, research and development and practical application techniques are not sufficient, and the preservation and maintenance techniques of concrete structures are still insufficient. This is because the national / social needs and perceptions of improving the durability and usability of water treatment systems were poor.

The concrete structures of the water treatment system are layered and combined into various structures according to the treatment groups, and various chemical environments and physical environments have long-term effects as well as treatment groups. Such environments may act on concrete structures in a variety of ways to cause corrosion and deterioration, which may result in degradation of water treatment system performance. That is, waterproofing and corrosion prevention techniques are generally applied to concrete structures. In order to maintain the durability and water quality stability of concrete structures from various external factors, proper waterproofing structure should be applied and maintained for treatment group of water treatment system.

Particularly, ozone having a strong oxidizing power is used as a water treatment material in an ozone treatment tank, which is a specific facility of an advanced water treatment system. Therefore, the above-mentioned ozone has a long-term effect on the treated water and the waterproof structure in the closed space.

However, in Korea, there is no study on the performance maintenance and stability of the waterproof structure in the high water treatment environment using ozone, and the waterproof structure used prior to the introduction of the advanced water treatment technology is still being used. Current waterproofing technologies for concrete structures include technologies using epoxy resin coating materials, technologies using synthetic polymer based sheet materials, and techniques using metal and ceramic tiles. In the case of the advanced water treatment system in which the above conventional waterproofing technique is applied, corrosion and deterioration are caused by ozone in the operation of the system, and the durability and water quality stability of the advanced water treatment system are lowered. Is generated.

Therefore, it is necessary to develop a waterproof structure and construction method to prevent the deterioration of the performance of the advanced water treatment system, and it is very urgent to apply the maintenance and repair method. In addition, recent water treatment systems require a waterproof structure that is environmentally friendly and durable.

The embodiment of the present invention provides a waterproof coating film of a water treatment system which is excellent in water resistance and anticorrosion properties and also has high elasticity and environment friendly characteristics, and a coating method of the coating film.

In addition, embodiments of the present invention provide a waterproof coating film of a water treatment system which can be easily applied in one-pack type and a coating method of the coating film.

In addition, the embodiment of the present invention provides a waterproof coating film of a water treatment system which is made of a water-soluble emulsion material and can be safely operated in a closed space, and a coating method of the coating film.

In addition, embodiments of the present invention provide a waterproof coating film of a water treatment system which is excellent in ozone resistance and can be applied to an advanced water treatment system, and a coating method of the coating film.

The present invention relates to a waterproof coating film applied to a base surface of a water treatment system.

According to an embodiment of the present invention, in order to improve the surface of the water treatment system, the surface of the primer layer may be coated with a primer layer applied to the surface of the water treatment system, A water-based acrylic-urethane copolymer emulsion resin and a waterborne silicone acrylic copolymer (hereinafter referred to as " waterborne < RTI ID = 0.0 & and a waterproof layer formed by applying a waterproof material including an emulsion resin to the waterproof coating film.

That is, the waterproof primer according to one embodiment of the present invention can impart a high strength of adhesion and elasticity by bonding a water-soluble silicone acryl copolymer emulsion resin to a water-soluble acrylic urethane copolymer emulsion resin having excellent water-repellent properties. In addition, the waterproof dressing material is formed of a water-soluble emulsion resin system, so that toxic gas is not generated during the coating operation, and it is formed into a one-part type so that the coating operation can be performed easily.

According to one embodiment, the water treatment system may be formed of a concrete structure, and the primer layer is coated on the surface of the concrete structure with a primer containing a styrene-acrylic acid ester copolymer .

According to one embodiment, the background adjustment layer may be formed by applying a background adjusting material including a polymer cement mortar. The polymer cement mortar may be formed by mixing a cement based powder and a waterproof emulsion at a weight ratio of 4: 1 can do.

The cement based powder may contain portland cement having a weight ratio of 20 to 40%, quartz having a weight ratio of 30 to 60%, slag having a weight ratio of 5 to 10%, and silica having a weight ratio of 5 to 10% .

The waterproof emulsion may contain 30 to 70% by weight of a carboxylated styrene-butadiene copolymer emulsion resin and 70 to 30% by weight of water.

According to one embodiment, the waterproof layer comprises a first waterproof layer applied to the surface of the background adjustment layer to serve as a primer between the ground control layer and the waterproof layer, A second waterproof layer applied to the surface of the second waterproof layer; And a third waterproof layer that is depicted on the surface of the second waterproof layer to complement the uneven application area of the second waterproof layer.

According to one embodiment, the waterproof primer may be formed by mixing the water-soluble acrylic-urethane copolymer emulsion resin having a weight ratio of 5 to 50% with the water-soluble silicone acrylic copolymer emulsion resin having a weight ratio of 50 to 90%.

According to one embodiment, the waterproof primer may be formed in one-component type and may be applied by spraying or painting.

According to another aspect of the present invention, there is provided a method for preparing a water treatment system, comprising the steps of: pretreating a base surface of the water treatment system; forming a primer layer by applying a primer on a base surface of the water treatment system; Forming a first waterproof layer on the surface of the ground adjusting layer by first coating a waterproof material on the surface of the ground adjusting layer; Forming a second waterproof layer on the surface of the second waterproof layer, and forming a third waterproof layer by applying a third waterproof material on the surface of the second waterproof layer.

The pretreatment step may include the steps of removing foreign substances existing on the surface of the water treatment system, and repairing the cracked portion or the leaked portion of the water treatment system.

The step of forming the background adjusting layer comprises the steps of: preparing a base adjusting material by blending a cement based powder and a waterproof emulsion at a blending ratio of 4: 1; applying the base adjusting material to the surface of the primer layer; And drying the applied background adjustment material to complete the background adjustment layer.

In at least one of the step of forming the first waterproof layer, the step of forming the second waterproof layer or the step of forming the third waterproof layer, the waterproof primer is sprayed or painted And can be applied in at least one manner.

The step of forming the first waterproof layer may be performed after 24 hours from the completion of the step of forming the background adjusting layer when the time of touch-drying of the base adjusting layer is 2 hours .

However, the tactile drying time of the background adjusting layer and the time for forming the first waterproof layer may be changed according to the surrounding environment. That is, the 2-hour touch-drying time and the 24-hour standing time are designed on the basis of the temperature of 20 ° C. However, the time may be lengthened or shortened according to the temperature change or the humidity change of the surrounding environment. For example, lower ambient temperatures or higher ambient humidities can lead to longer tack-free drying times and longer running times, and shorter tack-free drying times and running times may occur if the ambient temperature is higher or the ambient humidity is lower .

The step of forming the second waterproof layer may be performed after 2 hours from the completion of the step of forming the first waterproof layer if the touching time of the waterproof material is 30 minutes. The forming of the third waterproof layer may be performed after 2 hours from the completion of the step of forming the second waterproof layer if the touching time of the waterproofing material is 30 minutes.

Also in this case, the touch-dry time of the waterproofing material and the time for forming the second waterproof layer or the third waterproof layer may be changed depending on the surrounding environment. That is, the toughening time of 30 minutes and the running time of the 2 hours are designed on the basis of the temperature of 20 degrees, but the time can be lengthened or shortened according to the temperature change of the surrounding environment or the humidity change.

The waterproof coating film and the coating method of the coating film of the water treatment system according to an embodiment of the present invention are characterized in that a water-soluble silicone acrylic copolymer emulsion resin is bonded to an acrylic urethane copolymer emulsion resin excellent in water resistance and anticorrosion property, The waterproof layer can be formed by the earthenware material. Therefore, it is possible to sufficiently secure the waterproofness and anticorrosion of the concrete structure of the water treatment system, to stably adhere the waterproof layer to the surface of the concrete structure, and to secure adequate resistance against the rapid structural change of the concrete structure .

The waterproof coating film and the coating method of the coating film of the water treatment system according to an embodiment of the present invention can prevent the toxic gas and odor generated from the waterproof antifouling material by forming the waterproof antifouling material into a water- The waterproof material can be formed into a one-pack type so that the waterproof material can be easily applied.

When the waterproofing material does not generate toxic gases and odors as described above, it is possible to prevent the worker's health and the surrounding environment from being deteriorated. In particular, when the waterproofing material is applied in an airtight space such as a treatment tank of a water treatment system, It is possible to sufficiently secure the safety of the vehicle.

When the waterproof material is formed into a one-pack type as described above, the coating operation can be easily performed through the spraying method or the painting method of the brush and the roller, and the workability of the operator can be improved to shorten the application time of the waterproofing material .

The waterproof coating film and the coating method of the coating film of the water treatment system according to an embodiment of the present invention are environmentally friendly by forming a waterproof material from an inorganic material and have excellent chemical resistance against acid and alkali chlorine, It is possible to prevent corrosion and deterioration of the high-temperature water treatment system.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing the construction of a waterproof coating film of a water treatment system according to an embodiment of the present invention; FIG.
FIG. 2 is a block diagram schematically showing a coating method of the waterproof coating film shown in FIG. 1. FIG.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to or limited by the embodiments. Like reference symbols in the drawings denote like elements.

FIG. 1 is a schematic view showing the construction of a waterproof coating film 100 of a water treatment system according to an embodiment of the present invention.

Referring to FIG. 1, a waterproof coating 100 of a water treatment system according to an embodiment of the present invention includes a primer layer 110, a ground adjusting layer 120, and a waterproof layer 130.

The primer layer 110 is a coating layer for improving the surface of the water treatment system, and may be formed to have a predetermined thickness on the surface of the water treatment system. The water treatment system may be formed of a concrete structure 102, and a primer layer may be formed on the surface of the concrete structure 102.

Here, the primer layer 110 may be formed by applying a primer to the surface of the concrete structure 102 to a predetermined thickness. Here, the primer may include a styrene-acrylic acid ester copolymer. The styrene-acrylic acid ester-based copolymer has a high water resistance and a high permeability.

The primer layer 110 may be applied to the surface of the concrete structure 102 in a state where the foreign matter existing on the surface of the concrete structure 102 is removed. The primer layer 110 serves to adhere the ground adjusting layer 120 to the concrete structure 102 with a stronger adhesive force.

The background adjusting layer 120 may be formed to have a predetermined thickness on the surface of the primer layer 110 as a coating layer for adjusting the condition of the base surface of the concrete structure 102 to which the primer layer 110 is applied. The background adjustment layer 120 may be formed by applying a primer layer 110 to the primer layer 110 to a predetermined thickness.

The base adjusting material includes a polymer cement mortar, and the polymer cement mortar can be formed by blending a cement based powder and a waterproof emulsion at a weight ratio of 4: 1. Such a desk adjustment material has high durability and can sufficiently secure waterproofness.

Here, the cementitious powder may include Portland cement having a weight ratio of 20 to 40%, quartz having a weight ratio of 30 to 60%, slug having a weight ratio of 5 to 10%, and silica having a weight ratio of 5 to 10%. The waterproof emulsion may contain 30 to 70% by weight of a carboxylated styrene-butadiene copolymer emulsion resin and 70 to 30% by weight of water.

The waterproof layer 130 may be a coating layer for waterproofing and coating the concrete structure 102, and may be formed on at least two or more layers on the surface of the ground adjusting layer. Hereinafter, in the present embodiment, it is assumed that the waterproof layer 130 is composed of three layers. The waterproof layer 130 may be formed by coating a waterproof material on the surface of the ground control layer 120 to a predetermined thickness.

The waterproof primer can be formed by mixing a waterborne silicone acrylic copolymer emulsion resin with a waterborne acryl-urethane copolymer emulsion resin. For example, the waterproof primer can be formed by mixing a water-soluble silicone acryl copolymer emulsion resin having a weight ratio of 50 to 90% with a water-soluble acrylic urethane copolymer emulsion resin having a weight ratio of 5 to 50%. The waterproof layer 130 may be provided with a high strength adhesive force and elasticity by bonding a water-soluble silicone acryl copolymer emulsion resin to a water-soluble acrylic urethane copolymer emulsion resin excellent in water resistance and anticorrosion property.

The waterproof layer 130 has both a damping property and a waterproof property, but is excellent in durability and can have high adhesion and elasticity. Therefore, the waterproof layer 130 can stably prevent water leakage, and can prevent corrosion and deterioration due to acid, alkali chlorine, ozone, and the like, and can cope with sudden structural changes of the concrete structure 102 sufficiently.

Further, the waterproof primer may be formed in a one-component form, and thus may be applied by at least one of a spraying method and a paint method. When the waterproof type ash is formed into a one-component type, it is possible to omit the operation of mixing the waterproof type material in the site when the waterproof type layer 130 is formed.

Further, since the waterproof primer is formed of a water-soluble acrylic urethane copolymer emulsion resin and a water-soluble silicone acrylic copolymer emulsion resin, it can be formed into a water-soluble emulsion resin series. Therefore, since the toxic gas or odor is not generated during the application of the waterproof type ash material, the safety of the operator can be secured.

The waterproof layer 130 may include a first waterproof layer 132, a second waterproof layer 134, and a third waterproof layer 136. The first waterproof layer 132 may be a coating layer first applied to the surface of the background adjusting layer 120 and may serve as a primer between the ground adjusting layer 120 and the waterproof layer 130. The second waterproof layer 134 is a coating layer applied to the surface of the first waterproof layer 132, and plays a leading role in the function of waterproof function and function. The third waterproof layer 136 may complement the abnormal portion of the second waterproof layer 134 as a coating layer that is depicted on the surface of the second waterproof layer 134. Here, an abnormal portion of the second waterproof layer 134 means a portion where the waterproof material is applied to a thickness less than the predetermined thickness.

The coating method of the waterproof coating 100 of the water treatment system according to the embodiment of the present invention will be described below. 2 is a block diagram schematically showing a method of applying the waterproof coating 100 shown in FIG.

Referring to FIG. 2, a method of applying a waterproof coating 100 according to an embodiment of the present invention includes a step 11 of pretreating a surface of a water treatment system, a step of applying a primer to a base surface of the water treatment system, (13) forming a base adjusting layer (120) by applying a base adjusting material on the surface of the primer layer (110); forming a waterproof base material A second waterproof layer 134 is formed by applying a waterproof material to the surface of the first waterproof layer 132 to form a second waterproof layer 134 And a step (16) of forming a third waterproof layer (136) by applying a third waterproof material to the surface of the second waterproof layer (134).

The pretreatment step (11) of the substrate surface may include the steps of removing foreign substances present on the surface of the water treatment system, and repairing cracks or leaking parts of the water treatment system. For example, in the step of removing foreign matters, the high-pressure washing water and the grinder may be used to remove foreign substances from the surface of the concrete structure 102 that may interfere with the mounting of the primer. In the repairing step, it is possible to repair the cracked portion, protruding portion or leaked portion which is difficult to mount the primer to have a flat structure.

The step 12 of forming the primer layer 110 may apply and cure the primer to the substrate surface of the concrete structure 102 using a brush or roller.

The step of forming the background adjusting layer 13 includes the steps of making a base adjusting material by mixing the cement based powder and the waterproof emulsion at a weight ratio of 4: 1, applying the base adjusting material to the surface of the primer layer 110, 110) may be dried to complete the background adjusting layer 120. [0031] Referring to FIG. That is, the cement-based powder and the waterproof emulsion can be sufficiently mixed with a hand mixer while being mixed at a weight ratio of 4: 1, and can be applied to the surface of the primer layer 110 using a trowel or the like.

At least one of step 14 of forming first waterproof layer 132, step 15 of forming second waterproof layer 134 or step of forming third waterproof layer 136 The waterproof primer can be applied in at least one of the spraying method and the painting method.

Here, the step 14 of forming the first waterproof layer 132 may be performed such that when the settable drying time of the ground adjusting layer 120 is 2 hours, May be carried out after 24 hours from the completion of the forming step.

The above-mentioned set to touch refers to the initial drying state after a certain period of time since the paint is applied, and when the finger is lightly touched on the film, the fingerprint is not adhered to the finger, Of the total.

However, in order to form the first waterproof layer of 2 hours and the 24 hours of toughening time, the waiting time is set on the basis of the ambient temperature of 20 degrees, and various changes are made as the surrounding environment is changed . For example, if the ambient temperature is low or the ambient humidity is high, the longer the toughening time and the longer time to form the first waterproof layer, the higher the ambient temperature or the lower the ambient humidity, The period of time required for formation of the waterproof layer is shortened.

The step 15 of forming the second waterproof layer may be performed after 2 hours from the completion of the step of forming the first waterproof layer 132 when the touching time of the waterproofing material is 30 minutes .

The step of forming the third waterproof layer 136 is performed after 2 hours from the completion of the step of forming the second waterproof layer 134 when the touching time of the waterproof material is 30 minutes .

However, in order to form the second waterproof type layer or the third waterproof type layer of the above-mentioned 30 minutes tacticity drying time and 2 hours, the waiting time is set based on the ambient temperature of 20 degrees, and the surrounding environment is changed And the like. For example, if the ambient temperature is low or the ambient humidity is high, the toughening time and the period of time required to form the second and third waterproof layers become longer, and when the ambient temperature becomes higher or the ambient humidity becomes lower, And the period of time for forming the second and third waterproof layers is shortened.

Although the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And various modifications and changes may be made thereto without departing from the scope of the present invention. Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

100: Waterproof coating film of water treatment system
102: Concrete structure
110: primer layer
120:
130: Waterproof layer
132: First waterproofing layer
134: Second waterproofing layer
136: Third waterproofing layer

Claims (14)

In the waterproof coating film applied on the base of the water treatment system,
A primer layer applied to a surface of the water treatment system to improve the surface of the water treatment system;
A primer layer applied on the surface of the primer layer to adjust a state of the primer layer; And
A waterproof layer formed of at least two layers on the surface of the background adjusting layer and formed by applying a waterproof material containing a water soluble acrylic urethane copolymer emulsion resin and a water soluble silicone acrylic copolymer emulsion resin;
A water-repellent coating film of the water treatment system.
The method according to claim 1,
The water treatment system is formed of a concrete structure,
Wherein the primer layer is formed by applying a primer containing a styrene-acrylate-based copolymer to the surface of the concrete structure.
The method according to claim 1,
Wherein the background adjustment layer is formed by applying a background adjusting material including polymer cement mortar,
Wherein the polymer cement mortar comprises a cement based powder and a waterproof emulsion in a weight ratio of 4: 1.
The method of claim 3,
Wherein the cement based powder comprises Portland cement having a weight ratio of 20 to 40%, quartz having a weight ratio of 30 to 60%, slug having a weight ratio of 5 to 10%, and silica having a weight ratio of 5 to 10%.
The method of claim 3,
Wherein the waterproof emulsion comprises 30 to 70% by weight of a carboxylated styrene-butadiene copolymer emulsion resin and 70 to 30% by weight of water.
The method according to claim 1,
Wherein the waterproof layer comprises:
A first waterproof layer applied to the surface of the background adjusting layer to serve as a primer between the background adjusting layer and the waterproof layer;
A second waterproof layer applied to a surface of the first waterproof layer; And
A third waterproof layer plotted on a surface of the second waterproof layer to compensate for an abnormal application part of the second waterproof layer;
A waterproof coating film of a water treatment system.
The method according to claim 1,
Wherein the waterproof primer is formed by mixing the water soluble acrylic urethane copolymer emulsion resin having a weight ratio of 5 to 50% with the water soluble silicone acryl copolymer emulsion resin having a weight ratio of 50 to 90%.
The method according to claim 1,
Wherein the waterproof primer is formed in one-component type and applied in at least one of a spray method and a paint method.
In a coating method of a waterproof coating film on a base surface of a water treatment system,
Pretreating the surface of the water treatment system;
Forming a primer layer by applying a primer to a surface of the water treatment system;
Coating a surface of the primer layer with a primer layer to form a primer layer;
Forming a first waterproof layer by first coating a waterproof material on the surface of the background adjusting layer;
Forming a second waterproof layer by applying a waterproof material to the surface of the first waterproof layer; And
Forming a third waterproof layer by applying a third waterproofing material to the surface of the second waterproof layer;
Wherein the water-repellent coating film is formed on the surface of the substrate.
The method according to claim 1,
The pretreatment may include removing foreign matters existing on a surface of the water treatment system; And repairing cracks or leakage areas of the water treatment system.
11. The method of claim 10,
The step of forming the background adjusting layer may include the steps of: mixing the cement based powder and the waterproof emulsion at a blending ratio of 4: 1 to form the base adjusting material; Applying the primer layer to the surface of the primer layer; And drying the primer layer applied to the primer layer to complete the primer layer.
11. The method of claim 10,
In the step of forming the first waterproof layer, the step of forming the second waterproof layer, and the step of forming the third waterproof layer, at least one of the spraying method and the painting method Coated water-repellent coating film.
The method according to claim 1,
Wherein the forming of the first waterproof layer is performed after 24 hours from the completion of the step of forming the background adjusting layer when the touch adjusting drying time of the base adjusting layer is 2 hours. Coating method of coating film.
The method according to claim 1,
Wherein the forming of the second waterproof layer is performed after 2 hours from the completion of the step of forming the first waterproof layer if the touching dry time of the waterproofing material is 30 minutes,
Wherein the forming of the third waterproof layer is performed after 2 hours from the completion of the step of forming the second waterproof layer when the touching time of the waterproofing material is 30 minutes.

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