KR102183572B1 - Primer for flake lining, coating iron plate including the same and coating method by using primer maximizing adhesion of flake lining - Google Patents

Abstract

The present invention relates to a primer for flake lining. Particularly, according to an embodiment of the present invention, there is provided a primer for flake lining which can be applied to an iron plate having surface irregularities formed thereon in order to prevent corrosion of a system including the iron plate. The primer for flake lining includes: a liquid resin capable of preventing corrosion of the iron plate; and powder contained in the liquid resin for preventing the liquid resin applied to the iron plate from flowing down from the tip portions of the surface irregularities, wherein the powder includes talc powder.

Description

Primer for flaking lining, coating method using primer for flaking lining to maximize the adhesion of coated steel plate and flaking lining {PRIMER FOR FLAKE LINING, COATING IRON PLATE INCLUDING THE SAME AND COATING METHOD BY USING PRIMER MAXIMIZING ADHESION OF FLAKE LINING}

The present invention is an invention for a primer for flake lining, a coating method using a primer for flake lining to maximize the adhesion of the coated iron plate and flake lining including the same.

In general, since facilities such as tanks and ducts are made of steel plates, corrosion tends to occur when acidic or alkaline substances are stored or gas passes. Corrosion that occurs in such a steel plate degrades the performance of the facility and deteriorates the health of the facility. Accordingly, various methods for preventing corrosion occurring in facilities have been developed, and recently, a flake lining method has been widely used to prevent the occurrence of corrosion in facilities. This flaking lining construction method is a method of preventing moisture from penetrating the steel plate by being applied to a material that is prone to corrosion such as a steel plate. In addition, the flaking lining construction method requires excellent construction technology, and thorough quality control must be performed in the intermediate process.

Specifically, in the flaking lining construction method, after removing rust and foreign substances remaining on the surface of the steel plate through surface treatment, a primer is applied to the surface of the steel plate. Here, the primer has fluidity, but plays a role of protecting the steel plate from moisture by being adhered to the steel plate, and occupies a large portion of the adhesion of the flaking lining. Thereafter, the primer is applied to the iron plate, and when the curing of the primer is completed, the iron plate is coated through flaking lining.

On the other hand, in order to maximize the adhesion of the primer to the steel plate, not only the thorough management of the surface treatment work, but also the primer should be evenly applied to the steel plate and uniformly applied with a prescribed thickness. However, the primer is too ?貂? When an applied or uncoated part is formed, moisture in the air may penetrate and the steel plate of the uncoated part may be corroded. This may lead to fatal consequences for the adhesion of the flake lining.

In addition, the process of applying the primer to the iron plate may take as little as several hours to several weeks depending on the size of equipment such as tanks and ducts. At this time, in the case of the primer applied to the irregularities of the iron plate, it flows down when a predetermined time elapses, and less primer is applied to the ends of the irregularities, or in severe cases, the ends are exposed to the outside and contact with air. In particular, the ends of the irregularities can be corroded by air and moisture in a matter of hours in a fast case. As such, even if the corroded irregularities are protected by a primer, the performance and health of the facility may be deteriorated, and maintenance may be difficult after a considerable period of time.

Accordingly, there is a need for a primer containing a special additive that can prevent the iron plate from being corroded by preventing the primer applied to the iron plate from flowing down.

The embodiments of the present invention have been invented with the above background in mind, and an object of the present invention is to provide a primer for flake lining that can prevent the iron plate from being corroded by preventing the primer applied to the iron plate from flowing down.

According to an aspect of the present invention, there is provided a primer for flake lining that can be applied to the iron plate to prevent corrosion of a facility having an uneven steel plate, comprising: a liquid resin capable of preventing corrosion of the iron plate; And a powder contained in the liquid resin and for preventing the liquid resin applied to the iron plate from flowing down from the tip of the irregularities, and the powder comprises a talc powder, a primer for flake lining to be provided. I can.

In addition, a primer for flake lining may be provided, including the powder 20wt% or more and 25wt% or less and the balance of the liquid resin.

In addition, a curing agent capable of curing the liquid resin may be further included, and the curing agent may be provided with a primer for flake lining including methyl ethyl peroxide ketone.

In addition, a primer for flake lining may be provided, including the powder 20wt% or more and 25wt% or less, the curing agent 0.15wt% or more and 0.2wt% or less, and the balance of the liquid resin.

In addition, a primer for flake lining may be provided having a particle size of 2um or more and 5um or less of the talc powder.

In addition, an iron plate on which irregularities are formed; And a primer for flake lining that can be applied to the iron plate to prevent the iron plate from being corroded, and a tip portion is formed at the end of the irregularities, and the primer for flake lining can prevent corrosion of the iron plate. Liquid resin; And a powder contained in the liquid resin and for preventing the liquid resin applied to the iron plate from flowing down from the tip, wherein the powder includes talc powder, and a coated iron plate may be provided.

In addition, the primer for flake lining coated on the iron plate may be provided with a coated iron plate having a thickness of 50 μm or more and 80 μm or less.

In addition, a coated iron plate containing 20wt% or more and 25wt% or less of the powder and the balance of the liquid resin may be provided.

In addition, a curing agent capable of curing the liquid resin may be further included, and the curing agent may be provided with a coated iron plate containing methyl ethyl peroxide ketone.

In addition, a coated iron plate containing 20wt% or more and 25wt% or less of the powder, 0.15wt% or more and 0.2wt% or less of the curing agent, and the balance of the liquid resin may be provided.

In addition, a foreign material removing step of removing foreign matter remaining on the surface of the steel plate through a shot blasting process; In order to prevent the iron plate from being corroded, it includes a primer coating step of applying a primer for flake lining to the surface of the steel plate, and the primer for flake lining includes: a liquid resin capable of preventing corrosion of the steel plate; And a powder contained in the liquid resin to prevent the liquid resin applied to the iron plate from flowing down from the tip of the irregularities, wherein the powder includes talc powder, maximizing the adhesion of the flake lining A coating method using a primer for flake lining containing the following additives may be provided.

In addition, a coating method using a primer for flake lining containing an additive for maximizing adhesion of the flake lining, including the powder 20 wt% or more and 25 wt% or less, and the balance of the liquid resin may be provided.

In addition, there may be provided a coating method using a primer for flake lining that further includes a curing agent capable of curing the liquid resin and contains an additive for maximizing the adhesion of the flake lining.

In addition, the powder 20wt% or more and 25wt% or less, the curing agent 0.15wt% or more and 0.2wt% or less, and the balance using a primer for flake lining containing an additive for maximizing the adhesion of the flake lining, including the liquid resin A coating method may be provided.

According to the embodiments of the present invention, there is an effect of improving the adhesion of the primer.

In addition, there is an effect of preventing the iron plate from being corroded by preventing the primer applied to the iron plate from flowing down.

In addition, there is an effect of preventing the iron plate from being corroded to improve the performance and health of the facility.

1 is a cross-sectional view of a coated steel plate according to an embodiment of the present invention.
2 is a cross-sectional view of a primer for iron plate and flake lining.
3 is an enlarged view of part A of FIG. 2.
4 is a flow chart schematically showing a coating method using a primer for flake lining containing an additive for maximizing the adhesion of the flake lining according to an embodiment of the present invention.

Hereinafter, specific embodiments for implementing the technical idea of the present invention will be described in detail with reference to the drawings.

In addition, when it is determined that a detailed description of a known configuration or function related to the present invention may obscure the subject matter of the present invention, a detailed description thereof will be omitted.

In addition, when it is mentioned that a component is'adhered' to another component, it should be understood that although it may be directly adhered to the other component, another component may exist in the middle.

The terms used in the present specification are used only to describe specific embodiments and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

The meaning of "comprising" as used in the specification specifies a specific characteristic, region, integer, step, action, element and/or component, and other specific characteristic, region, integer, step, action, element, component and/or group It does not exclude the existence or addition of

In addition, it should be noted in advance that the expression of the upper side in the present specification is described based on the drawings in the drawings, and may be expressed differently if the direction of the object is changed. Meanwhile, in the present specification, the vertical direction may be the vertical direction of FIGS. 1 and 2.

Hereinafter, a specific configuration of the coated iron plate 1 according to an embodiment of the present invention will be described with reference to the drawings.

Hereinafter, referring to FIGS. 1 and 2, the coated steel plate 1 according to an embodiment of the present invention may be provided to configure the appearance of facilities (not shown) such as a tank and a duct. have. As a more detailed example, the coated steel plate 1 may be used in living facilities such as storage tanks, reaction tanks, and treatment facilities such as sedimentation tanks, water tanks, insulating plate tanks, and swimming pools. The coated iron plate 1 may be provided with a surface coated to prevent corrosion from occurring. In addition, the coated steel plate 1 may include a steel plate 100, a primer 200 for flake lining, a flake sheet layer 300, and a coat layer 400.

It may be provided to configure the appearance of the iron plate 100 facility. The steel plate 100 may include a material having a predetermined strength. For example, the iron plate 100 may include iron (Fe). In addition, a primer 200 for flaking lining may be applied to the surface of the iron plate 100 to prevent corrosion. Therefore, the surface of the iron plate 100 may be blocked from external moisture by the primer 200 for flake lining.

Meanwhile, the unevenness 110 may be formed on the surface of the iron plate 100. These irregularities 110 may protrude from the surface of the iron plate 100. For example, the irregularities 110 may have an equilateral triangle shape. However, this is only an example and it is possible to have other well-known shapes. In addition, a plurality of irregularities 110 may be provided, and a primer 200 for flake lining may be applied to the plurality of irregularities 110. The tip portion 111 and the concave portion 112 may be formed in the irregularities 110.

Referring to FIG. 3, the tip portion 111 may be an end facing the outside of the irregularities 110 among the ends of the irregularities 110. In other words, the tip portion 111 may be a portion of the irregularities 110 that protrudes toward the outside.

In addition, the concave-convex portion 112 may be an end of the concave-convex 110 toward the inside of the concave-convex portion 110. In other words, the concave and concave portion 112 may be a portion of the concave and convex 110 that protrudes toward the inside.

For example, a distance d between adjacent portions of the plurality of tip portions 111 may be 50 um or more and 70 um or less. In addition, a distance d between adjacent portions of the plurality of concave portions 112 may be 50um or more and 70um or less. In addition, the vertical distance h between the tip portion 111 and the concave portion 112 may be 50um or more and 70um or less.

Referring again to FIG. 2, the primer 200 for flake lining may be applied to the steel plate 100 to prevent the steel plate 100 from being corroded. The primer 200 for flake lining may have a predetermined fluidity. In addition, the flake lining primer 200 may have low fluidity after a predetermined period of time after being exposed to air. For example, the primer 200 for flake lining may be in a semi-solid state, and may be cured after a predetermined time after being exposed to air. The primer 200 for flake lining may have adhesive strength and may be adhered to the iron plate 100. For example, the thickness t of the primer 200 for flake lining applied to the iron plate 100 may be 50um or more and 80um or less. The primer 200 for flake lining may include a liquid resin 210 and a powder 220.

The liquid resin 210 may be applied to the steel plate 100 to prevent corrosion of the steel plate 100. The liquid resin 210 may include resin in a liquid state. In addition, the liquid resin 210 may be applied to the surface of the steel plate 100 to prevent corrosion of the steel plate 100. In addition, since the powder 220 is contained in the liquid resin 210, adhesion of the liquid resin 210 may be improved, and viscosity may be increased. The liquid resin 210 may be applied to the irregularities 110 and fixedly adhered to the surface of the irregularities 110. In addition, the liquid resin 210 may be evenly applied to the tip portion 111 and the concave portion 112 of the irregularities (110).

The powder 220 may increase the surface activity of the liquid resin 210. In other words, the powder 220 may increase the viscosity of the liquid resin 210 and may increase the adhesion of the liquid resin 210. In this way, since the powder 220 is contained in the liquid resin 210, the liquid resin 210 is adhered to the surface of the irregularities 110, and may not flow down along the surface of the irregularities 110. These powders 220 may include, for example, talc powder. In addition, the particle size of the powder 220 may be 2um or more and 5um or less. In addition, for example, the content of the powder 220 for the flake lining primer 200 may be 20wt% or more and 25wt% or less.

Before the powder 220 is contained in the liquid resin 210, the liquid resin 210 flows down from the tip part 111 to the concave inlet part 112 so that a part of the tip part 111 may be exposed to the air. Since the powder 220 is contained in the resin 210, there is an effect that moisture can be prevented from penetrating the tip 111.

Meanwhile, the primer 200 for flake lining may further include a curing agent (not shown). The curing agent may cure the liquid resin 210. For example, the liquid resin 210 containing the curing agent may have fluidity and may be cured after a predetermined time. As such, the cured liquid resin 210 may be fixed to the surface of the iron plate 100. For example, the curing agent may include at least one of a dibenzoyl peroxide-based curing agent, a di-butyl peroxide-based curing agent, a lauryl peroxide-based curing agent, and a methyl ethyl ketone peroxide curing agent. In addition, the content of the curing agent for the flake lining primer 200 may be 0.15 wt% or more and 0.2 wt% or less.

The flake sheet layer 300 may prevent the iron plate 100 from being corroded. In other words, the flake sheet layer 300 may prevent a fluid from penetrating into the iron plate 100. For example, the flake sheet layer 300 may prevent the iron plate 100 from being corroded by preventing liquid water, gaseous water vapor, or gas from penetrating into the iron plate 100. Since the flake sheet layer 300 is cured at room temperature, construction may be easy. In addition, the flake sheet layer 300 may be formed on the upper side of the flake lining primer 200. The flake sheet layer 300 may include a flake sheet 310 and a flake 320.

The flake sheet 310 may be impregnated with a corrosion-resistant resin. For example, the corrosion resistant resin of the flake sheet 310 may include a thermosetting resin. As a more detailed example, the corrosion resistant resin of the flake sheet 310 may include at least one of an unsaturated polyester resin, a vinyl ester resin, and an epoxy resin. In addition, a plurality of flakes 320 may be coupled to the flake sheet 310.

The flake 320 may be one or more of a glass flake, a mica flake, and a carbon flake. However, this is only an example, and other flakes having various particle diameters or materials may be used.

The coat layer 400 may prevent the iron plate 100 from being corroded. The coat layer 400 may be applied to the surface of the flake sheet layer 300. Accordingly, the coat layer 400 may be formed on the outermost side of the coated iron plate 1. For example, the coat layer 400 may include one or more of an unsaturated polyester resin, a vinyl ester resin, and an epoxy resin.

Hereinafter, the operation and effect of the coated iron plate 1 having the configuration as described above will be described.

In order to form the coated steel plate 1, the user may first remove rust and foreign matter remaining on the surface of the steel plate 100 through a shot blasting method. In addition, the powder 220 and the liquid resin 210 containing the curing agent may be applied to the surface of the iron plate 100. Thereafter, after a predetermined period of time, the flake sheet layer 300 is applied to the surface of the flake lining primer 200, and the coating layer 400 is applied on the flake sheet layer 300 to prepare the coated iron plate 1 I can.

As such, the primer 200 for flake lining according to an embodiment of the present invention may increase the activation force of only the liquid resin 210 by adding the powder 220 to the liquid resin 210 and increase adhesion. There is an effect.

In addition, the liquid resin 210 may be prevented from flowing from the surface of the iron plate 100 by increasing the adhesion of the liquid resin 210. At this time, since the primer 200 for flake lining does not flow down from the tip portion 111 of the iron plate 100, the surface of the iron plate 100 including the tip portion 111 is evenly coated.

Therefore, there is an effect of preventing a part of the iron plate 100 from being corroded.

Hereinafter, a coating method (S10) using a primer for flake lining containing an additive for maximizing adhesion of the flake lining according to an embodiment of the present invention will be described.

In the coating method (S10) using the flake lining primer, the flake lining may be applied to the iron plate 100 while preventing the flake lining primer 200 from flowing down from the irregularities 110 of the iron plate 100. Here, the flake lining may include a primer 200 for flake lining, a flake sheet layer 300 and a coat layer 400. The coating method (S10) using a primer for flake lining containing an additive for maximizing the adhesion of the flake lining includes a foreign material removal step (S100), a primer application step (S200), a sheet layer application step (S300), and a coat layer. It may include an application step (S400).

In the foreign matter removing step (S100), foreign matter remaining on the surface of the iron plate 100 may be removed. For example, in the foreign matter removing step S100, foreign matter remaining on the surface of the steel plate 100 may be removed through a shot blasting process. A plurality of irregularities 110 may be formed on the surface of the steel plate 100 that has undergone such a shot blasting process.

In the primer application step (S200), the primer 200 for flake lining may be applied to the surface of the iron plate 100. The primer 200 for flake lining may include a liquid resin that can prevent corrosion of the iron plate 100, and prevents the liquid resin 210 from flowing down from the tip 111 of the unevenness 110. It may include a powder 220 that can be. The primer 200 for flake lining applied to the iron plate 100 in the primer application step (S200) by the powder 220 does not flow down from the irregularities 110 and is coated to the tip 111 of the irregularities 110 Can be.

In the sheet layer application step (S300), the flake sheet layer 300 may be applied to the surface of the flake lining primer 200. The sheet layer application step (S300) may be performed after the primer application step (S200), and may be performed after the flake lining primer 200 is cured.

In the coating layer application step (S400), the coating layer 400 may be applied to the surface of the flake sheet layer 300. This coating layer application step (S400) may be performed after the sheet layer application step (S300), and may be performed after the flake sheet layer 300 is cured.

The embodiments of the present invention have been described above as specific embodiments, but these are only examples, and the present invention is not limited thereto, and should be construed as having the widest scope according to the technical idea disclosed in the present specification. A person skilled in the art may combine/substitute the disclosed embodiments to implement a pattern of a shape not indicated, but this also does not depart from the scope of the present invention. In addition, those skilled in the art can easily change or modify the disclosed embodiments based on the present specification, and it is clear that such changes or modifications also belong to the scope of the present invention.

1: coated iron plate 100: iron plate
110: irregularities 111: tip
112: concave portion 200: flake lining primer
210: liquid resin 220: powder
300: flake sheet layer 310: flake sheet
320: flake 400: coat layer

Claims (14)

In the primer for flake lining that can be applied to the iron plate to prevent corrosion of the iron plate having the unevenness having the tip portion and the concave portion,
A liquid resin capable of preventing corrosion of the iron plate;
A curing agent capable of curing the liquid resin; And
It is contained in the liquid resin, and includes a powder for preventing the liquid resin applied to the iron plate from flowing down from the tip of the irregularities,
The powder includes talc powder,
The curing agent includes a methyl ethyl ketone peroxide curing agent,
20wt% or more and 25wt% or less of the powder, 0.15wt% or more and 0.2wt% or less of the curing agent, and the balance of the liquid resin,
The particle size of the talc powder is 2um or more and 5um or less,
The flake lining primers applied to each of the tip and the concave portions have the same thickness as each other,
Flakes lining primer. delete delete delete delete An iron plate with irregularities formed; And
In order to prevent the iron plate from being corroded, it includes a primer for flake lining that can be applied to the iron plate,
A tip portion and a concave portion are formed at the ends of the irregularities,
The flake lining primer,
A liquid resin capable of preventing corrosion of the iron plate;
A curing agent capable of curing the liquid resin;
It is contained in the liquid resin, and includes a powder for preventing the liquid resin applied to the iron plate from flowing down from the tip,
The powder includes talc powder,
The curing agent includes a methyl ethyl ketone peroxide curing agent, 20 wt% or more and 25 wt% or less of the powder, 0.15 wt% or more and 0.2 wt% or less of the curing agent, and the balance of the liquid resin,
The particle size of the talc powder is 2um or more and 5um or less,
The flake lining primers applied to each of the tip and the concave portions have the same thickness as each other,
Coated iron plate. The method of claim 6,
The primer for flake lining coated on the iron plate has a thickness of 50um or more and 80um or less,
Coated iron plate. delete delete delete A foreign substance removing step of removing foreign substances remaining on the surface of the steel plate through a shot blasting process;
In order to prevent the iron plate from being corroded, a primer application step of applying a primer for flake lining to the surface of the iron plate,
The steel plate has an unevenness provided with a tip portion and a concave portion,
The flake lining primer,
A liquid resin capable of preventing corrosion of the iron plate;
A curing agent capable of curing the liquid resin; And
It is contained in the liquid resin, and includes a powder for preventing the liquid resin applied to the iron plate from flowing down from the tip of the irregularities,
The powder includes talc powder,
The curing agent includes a methyl ethyl ketone peroxide curing agent, 20 wt% or more and 25 wt% or less of the powder, 0.15 wt% or more and 0.2 wt% or less of the curing agent, and the balance of the liquid resin,
The particle size of the talc powder is 2um or more and 5um or less,
The flake lining primers applied to each of the tip and the concave portions have the same thickness as each other,
A coating method using a primer for flake lining to maximize the adhesion of flake lining.
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