Robot spray paint composition and its painting method

Abstract

The present invention relates to an epoxy-specific paint composition using a construction robot and a coating method thereof, comprising a main component based on 30 to 40 parts by weight of calcium carbonate, comprising 20 to 30 parts by weight of bisphenol A diglycidyl ether, 15 to 25 parts by weight of xylene, 5 to 15 parts by weight of titanium dioxide, 1 to 5 parts by weight of ethylene glycol monoethyl ether, and 1 to 5 parts by weight of methyl ethyl ketone; The present invention provides a paint composition for construction robots comprising a curing agent comprising 40 to 50 parts by weight of poly(oxypropylene)diamine, 20 to 30 parts by weight of toluene, 15 to 25 parts by weight of xylene, 1 to 5 parts by weight of 2,4,6-tris[(N,N-dimethylamino)methyl]phenol, 1 to 5 parts by weight of 1-butanol, and 1 to 5 parts by weight of bisphenol A diglycidyl ether, and a painting method using the paint composition. The epoxy paint composition for construction robots according to the present invention is an oil-based paint that is room temperature curing type and has the advantages of excellent workability, water resistance, durability, and chemical resistance.

Description

Technology Field

[0001] The present invention relates to an epoxy paint composition dedicated to use with construction robots and a method for applying the same. More specifically, it relates to an epoxy paint composition dedicated to use with construction robots and a method for applying the same, which improves the paint composition used for construction robot spraying to provide excellent workability and excellent water resistance, durability, and chemical resistance. Background Technology

[0002] Recently, building exterior walls are moving away from standardized designs and colors, and are combining various colors and design elements. There is a demand for designs that reflect local uniqueness and history, such as the "Design Guidelines for Multi-Family Housing," which is part of the Housing Act.

[0003] Accordingly, in a market environment where increasingly complex painting forms and designs are required, roller painting methods rather than spray methods not only increase construction time and costs, but also, in this regard, various examples of paint compositions used for exterior wall painting of buildings have been proposed through Korean Registered Patent No. 10-1551746 (Reference 1), a method for manufacturing a fast-drying water-based aerosol spray composition, and Japanese Published Patent No. 2005-225927 (Reference 2), a water-based paint composition and a method for forming a film using it.

[0004] However, the above reference 1 describes a paint composition that has excellent sprayability and allows for thick film coating as a fast-drying type through a spraying medium by applying a urethane thickener, and the above reference 2 suggests a paint composition that secures viscosity with excellent workability and has excellent self-leveling through a combination of various types of thickeners. However, these have the problem of lacking preventive measures against airborne dust according to the spray coating method and being unsuitable for the domestic season with four distinct seasons.

[0005] Of course, to resolve the problems of the above references 1 and 2, a coating method using a robot-specific paint composition of registered patent No. 10-2205082 (Reference 3) has been proposed.

[0006] However, the dedicated epoxy paint composition for construction robots proposed in Reference 3 above is a water-based paint that is sensitive to moisture, so it lacks durability compared to oil-based paints when used in external environments. Furthermore, durability is reduced in high-temperature or high-humidity environments or on surfaces with high friction, leading to a high risk of physical or chemical scratches or damage. Consequently, when performing a coating using a water-based paint, an additional protective layer must be formed, which also has the disadvantage of reduced workability. Prior art literature

[0007] Reference 1: Republic of Korea Registered Patent No. 10-1551746 Reference 2: Japanese Published Patent No. 2005-225927 Reference 3: Republic of Korea Registered Patent No. 10-2205082 The problem to be solved

[0008] Therefore, in order to solve the problems of such conventional technology, the present invention aims to provide a paint composition for construction robots that is improved to have excellent workability, water resistance, durability, and chemical resistance, and a painting method using said paint composition for construction robots.

[0009] In particular, the present invention aims to provide an epoxy-specific paint composition for use with a construction robot and a painting method using said paint composition, which enables precise painting without restrictions on the shape of floors or exterior walls of structures requiring complex painting forms and designs, and ensures not only waterproofing but also high-quality painting. means of solving the problem

[0010] To solve such technical problems, the present invention;

[0011] The present invention provides a paint composition for construction robots comprising a mixture of a main component and a curing agent, wherein the main component comprises, based on 30 to 40 parts by weight of calcium carbonate, 20 to 30 parts by weight of bisphenol A diglycidyl ether, 15 to 25 parts by weight of xylene, 5 to 15 parts by weight of titanium dioxide, 1 to 5 parts by weight of ethylene glycol monoethyl ether, and 1 to 5 parts by weight of methyl ethyl ketone; and the curing agent comprises 40 to 50 parts by weight of poly(oxypropylene)diamine, 20 to 30 parts by weight of toluene, 15 to 25 parts by weight of xylene, 1 to 5 parts by weight of 2,4,6-tris[(N,N-dimethylamino)methyl]phenol, 1 to 5 parts by weight of 1-butanol, and 1 to 5 parts by weight of bisphenol A diglycidyl ether.

[0012] At this time, the above main component and the hardener are mixed in a weight ratio of 5 to 6:1.

[0013] In addition, the present invention;

[0014] A method for painting using a paint composition dedicated to a construction robot is also provided, characterized by comprising: a first step of preparing the paint composition dedicated to a construction robot; and a second step of forming a coating layer on a substrate surface of a structure by spraying the paint composition dedicated to a construction robot prepared through the first step using a painting device dedicated to a construction robot.

[0015] And, after the first step and before the second step, it is characterized by further including a third step of applying a primer to the substrate surface of the structure and applying epoxy putty.

[0016] In addition, the second step is characterized by forming a coating layer by spraying a paint composition dedicated to construction robots onto the substrate surface of a structure with a thickness of 50㎛ to form a first coating (31), and then forming a second coating with a thickness of 50㎛. Effects of the invention

[0017] The paint composition for construction robots according to the present invention is an epoxy paint of the two-component type and has the advantages of excellent workability, water resistance, durability, and chemical resistance.

[0018] In addition, when using the epoxy paint composition dedicated to construction robots according to the present invention, precise painting is possible without restrictions on the shape of floors or exterior walls of structures requiring complex painting forms and designs, and waterproofing and high-quality painting can be ensured, and desired color adjustment can also be freely performed. Brief explanation of the drawing

[0019] FIG. 1 is a table illustrating the properties of an epoxy paint composition dedicated to construction robots according to one embodiment of the present invention. FIG. 2 is a diagram illustrating an example of a general floor coating using an epoxy paint composition dedicated to construction robots according to the present invention. Specific details for implementing the invention

[0020] The features of the epoxy paint composition for construction robots and the coating method according to the present invention will be understood through the embodiments described in detail below with reference to the attached drawings.

[0021] The paint composition for construction robots according to the present invention is a paint used for coating the floors or exteriors of various structures, such as apartments, and is used in a coating process utilizing a paint composition method for construction robots.

[0022] At this time, the construction robot-specific coating device used in the above-mentioned epoxy paint composition method may use the construction robot-specific coating device proposed in Registered Patent No. 10-2205082, or various known construction robot coating devices having equivalent functions may be used.

[0023] First, the paint composition for construction robots according to the present invention is an oil-based paint composition, and uses a mixture of a paint main component and a curing agent in a set weight ratio.

[0024] At this time, the main ingredient comprises, based on 30 to 40 parts by weight of calcium carbonate, 20 to 30 parts by weight of bisphenol A diglycidyl ether, 15 to 25 parts by weight of xylene, 5 to 15 parts by weight of titanium dioxide, 1 to 5 parts by weight of ethylene glycol monoethyl ether, and 1 to 5 parts by weight of methyl ethyl ketone.

[0025] Preferably, when the total weight is 100%, the above main ingredient comprises 30 to 40% by weight of calcium carbonate, 20 to 30% by weight of bisphenol A diglycidyl ether, 15 to 25% by weight of xylene, 5 to 15% by weight of titanium dioxide, 1 to 5% by weight of ethylene glycol monoethyl ether, and 1 to 5% by weight of methyl ethyl ketone.

[0026] The above calcium carbonate is a component primarily used as a filler or additive, which helps reduce paint costs and improve physical properties, increases paint density and enhances durability, improves applicability, and contributes to color stability.

[0027] The above-mentioned bisphenol A diglycidyl ether is a major component of epoxy resin and provides strong bonding strength and chemical resistance, which imparts strength and durability to the paint, helps to enhance heat resistance and water resistance, and combines with a curing agent to cause a chemical reaction that causes the paint to cure.

[0028] The above xylene is an organic solvent and serves as a component that helps control the viscosity and dilute the paint, thereby improving the paint's applicability, appropriately controlling the drying speed, and enabling the paint to be applied evenly.

[0029] The aforementioned titanium dioxide is used as a pigment and is a component responsible for the color and opacity of the paint. It provides bright and vivid colors to the paint, plays a particularly important role in increasing whiteness, and contributes to improving the durability of the paint by possessing UV blocking properties.

[0030] The above ethylene glycol monomethyl ether is used as a solvent and is a component that contributes to appropriately lowering the viscosity of the paint and improving its applicability. It plays an important role in properly controlling the drying time of the paint and helps disperse pigments to maintain a uniform color.

[0031] The above-mentioned methyl ethyl ketone (MEK) is a powerful solvent used in combination with other solvents to control the volatility of the paint, increase the drying speed, and contribute to appropriately lowering the viscosity, while also helping the paint spread well and promoting rapid drying after application.

[0032] And the curing agent comprises 40 to 50 parts by weight of poly(oxypropylene)diamine, 20 to 30 parts by weight of toluene, 15 to 25 parts by weight of xylene, 1 to 5 parts by weight of 2,4,6-tris[(N,N-dimethylamino)methyl]phenol, 1 to 5 parts by weight of 1-butanol, and 1 to 5 parts by weight of bisphenol A diglycidyl ether.

[0033] Preferably, when the total amount of the curing agent is 100% by weight, it comprises 40 to 50% by weight of poly(oxypropylene)diamine, 20 to 30% by weight of toluene, 15 to 25% by weight of xylene, 1 to 5% by weight of 2,4,6-tris[(N,N-dimethylamino)methyl]phenol, 1 to 5% by weight of 1-butanol, and 1 to 5% by weight of bisphenol A diglycidyl ether.

[0034] The aforementioned poly(oxypropylene)diamine is a component used as a curing agent. It reacts with resins such as epoxy resin or polyurethane to form chemical bonds, playing a crucial role in enhancing the durability, heat resistance, and strength of the paint. This increases strength as the paint hardens into a solid, and strengthens its chemical resistance and abrasion resistance.

[0035] The above toluene is a powerful solvent used for controlling the viscosity and diluting paints. Toluene controls the volatility of the paint, improves applicability, and facilitates the dispersion of paint components, thereby enabling the realization of a uniform color and finish.

[0036] The aforementioned xylene is also a component used as a solvent to control volatility and adjust viscosity in paints; it helps the paint spread evenly and ensures a smooth and even finish after drying. In particular, xylene improves the paint's flowability, making application easier and contributing to the maintenance of durability and gloss.

[0037] The above 2,4,6-Tris[(N,N-dimethylamino)methyl]phenol is a compound used as an accelerator or curing accelerator, which reacts with an epoxy curing agent to accelerate the curing speed and efficiently promotes the curing process of the paint. In particular, when combined with epoxy, rapid curing occurs, allowing the durability of the paint to be quickly secured, thereby shortening the curing time of the paint and enhancing physical properties to improve chemical resistance and heat resistance.

[0038] The above 1-butanol is a solvent component that helps control the viscosity of the paint and improves its applicability. This butanol is used in combination with xylene to properly control the volatility of the paint and helps ensure a smooth finish after painting.

[0039] The above-mentioned bisphenol A diglycidyl ether is a major component of epoxy resin, and this compound forms an epoxy resin with excellent heat resistance and chemical resistance, and enhances the physical and chemical strength and durability of the paint.

[0040] The above main component and hardener are mixed in a weight ratio of 5 to 6:1. Of course, in addition to the above main component and hardener, various additional components such as solvents or pigments may be included as needed.

[0041] Preferably, the above main material and the curing agent are mixed in a weight ratio of 5.5 to 1.

[0042] The paint composition for construction robots according to the present invention exhibits properties as shown in FIG. 1 when the mixing weight ratio of the main component to the curing agent is 5.5:1. This can be used as a topcoat (or coating) for concrete, wood, general machinery, etc., which form the floors of structures, and has the characteristics of being room temperature curing type, having good workability, having a beautiful appearance because there are no seams, excellent water resistance, durability and chemical resistance, allowing for free adjustment of desired colors, excellent walking comfort, and easy partial repair.

[0043] Hereinafter, a coating process using a paint composition for construction robots according to the present invention will be described with reference to FIG. 2.

[0044] First, a paint composition for construction robots is prepared by mixing the main component and the hardener in a set weight ratio (the main component and the hardener are 5.5:1).

[0045] After removing contaminants from the substrate surface of the structure (e.g., concrete floor) (1), a primer (10) is applied. The main role of the primer (10) is to strengthen the bonding strength between the surface and the paint and to help the paint adhere well. For example, a urethane primer can be used and applied so that it is sufficiently absorbed into the substrate surface, and it is preferable that the amount used is 0.2 to 0.3 kg / ㎡.

[0046] Then, an epoxy putty (20) based on epoxy resin is applied to the top of the primer (10) to fill holes, cracks, and gaps in the substrate surface of the structure (1) and to make the surface smooth.

[0047] Then, a coating layer (30) is formed by spraying a paint composition dedicated to construction robots onto the primer (10) of the above structure (1) using a robot spray painting device proposed in Registered Patent No. 10-2205082, or by spraying the paint composition dedicated to construction robots using various known robot painting devices that have equivalent functions. In this case, the coating layer (30) is applied to a clean, dry surface that has been coated with a primer, etc., and it is preferable to perform this under conditions of a temperature of 10 to 35°C and a humidity of 0 to 85%. At this time, the pot life is 4 hours (25°C), and regarding the curing time, the walkable time is 24 hours (25°C) and the curing time is 7 days.

[0048] Meanwhile, the coating layer (30) can be formed by applying two or more coats, thereby forming a thicker overall coating layer (30) to further improve water resistance, durability, and chemical resistance as well as waterproofing function. In this case, a second coat (recoating) (32) can be applied after the first coat (31), and such first coat (31) and second coat (32) can each be formed with a thickness of, for example, 50 μm. In this case, it is preferable to apply the second coat (recoating) (32) after 12 to 24 hours (25°C) have passed after the first coat (31), and if necessary, three or more additional coats (Nth coat) may be applied.

[0049] The foregoing description is merely an illustrative explanation of the technical concept of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and variations within the scope of the essential characteristics of the present invention. The scope of protection of the present invention shall be interpreted by the claims below, and all technical concepts within an equivalent scope shall be interpreted as being included within the scope of rights of the present invention. Explanation of the symbols

[0050] 1: Structure 10: Primer 20: Epoxy putty 30: Coating layer 31: 1st coat 32: 2nd coat

Claims

Claim 1 A construction robot-specific epoxy paint composition comprising a mixture of a main component and a curing agent, wherein the main component comprises, based on 30 to 40 parts by weight of calcium carbonate, 20 to 30 parts by weight of bisphenol A diglycidyl ether, 15 to 25 parts by weight of xylene, 5 to 15 parts by weight of titanium dioxide, 1 to 5 parts by weight of ethylene glycol monoethyl ether, and 1 to 5 parts by weight of methyl ethyl ketone; and the curing agent comprises 40 to 50 parts by weight of poly(oxypropylene)diamine, 20 to 30 parts by weight of toluene, 15 to 25 parts by weight of xylene, 1 to 5 parts by weight of 2,4,6-tris[(N,N-dimethylamino)methyl]phenol, 1 to 5 parts by weight of 1-butanol, and 1 to 5 parts by weight of bisphenol A diglycidyl ether. Claim 2 A dedicated epoxy paint composition for use with a construction robot according to claim 1, characterized in that the main component and the hardener are mixed in a weight ratio of 5 to 6:

1. Claim 3 A method of coating using an epoxy paint composition for a construction robot, characterized by comprising: a first step of preparing an epoxy paint composition for a construction robot according to claim 1 or 2; and a second step of forming a coating layer (30) on a substrate surface of a structure (1) by spraying the epoxy paint composition for a construction robot prepared through the first step using a coating device for a construction robot. Claim 4 A method of coating using an epoxy paint composition for construction robots, characterized in that, in the third paragraph, a third step is further included after the first step and before the second step, in which a primer (10) is applied to the substrate surface of the structure (1) and an epoxy putty (20) is applied. Claim 5 A painting method using an epoxy paint composition for construction robots according to claim 3, wherein the second step is a step of forming a coating layer (30) by spraying a paint composition for construction robots onto a substrate surface of a structure (1) with a thickness of 50 μm using a painting device for construction robots, and then applying a second paint with a thickness of 50 μm.

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