KR20160063471A

KR20160063471A - Paint composition for construction

Info

Publication number: KR20160063471A
Application number: KR1020140166337A
Authority: KR
Inventors: 이은관
Original assignee: 이은관
Priority date: 2014-11-26
Filing date: 2014-11-26
Publication date: 2016-06-07

Abstract

The present invention relates to an architectural paint composition which is used in outer walls of a building, landscape architecture works, and benches. More specifically, the architectural paint composition is composed of purified water, cement, a binding agent, stone flour, a pigment, and a waterproof agent. The architectural paint composition composed of the components exhibits excellent water proofness, acid resistance, and light resistance, while retaining material properties for a long period of time. In addition, the architectural paint composition has superior antibacterial properties as well as capability of creating a similar texture to a surface of wood when cured after application due to containing stone flour.

Description

{PAINT COMPOSITION FOR CONSTRUCTION}

More particularly, the present invention relates to a coating composition for architectural use, which is excellent in water resistance, acid resistance and light fastness, maintains physical properties for a long period of time, and has a texture similar to that of a wood surface The present invention relates to a coating composition for architectural use which exhibits antimicrobial activity.

In recent years, materials that minimize the emission of formaldehyde, volatile organic substances, and heavy metals have been used due to the enforcement of environmental regulations, and accordingly, various functional environmentally friendly paints Photocatalyst paint, anion-generating paint, far-infrared ray-emitting paint, and silver-nano-containing paint.

However, the above-mentioned eco-friendly paints are less effective when applied to real life than expensive ones, and since the surface is smooth after being applied, the aesthetic effect is limited and the application field is limited.

In order to overcome the above problems, various kinds of functional paints which are more environmentally friendly and excellent in function than commercial synthetic woods have been marketed, but most of them are developed for indoor interior and are poor in water resistance, acid resistance and light resistance. There is a problem that the coating layer is easily peeled off since the adhesion to the inorganic material such as the concrete structure is low.

In order to solve the above problems, there has also been introduced a multi-pattern paint in which a variety of color paints are mixed. However, this is produced by cutting and dispersing the oil-based paint in the water phase. When spraying, Therefore, there is a problem that the work is cumbersome and the painting equipment needs to be provided separately. In spray painting, there is a problem that the maintenance work must be separately performed due to the scattering of the paint.

Korean Patent Laid-Open No. 10-2009-0003901 (Jan. 12, 2009). Korean Patent Registration No. 10-0332974 (Apr.

An object of the present invention is to provide a coating composition for construction which is excellent in water resistance, acid resistance and light resistance, maintains physical properties for a long period of time, exhibits excellent adhesion with metal or concrete structures, and is suppressed in peeling.

It is another object of the present invention to provide a coating composition for architects which contains antimicrobial and antimicrobial substances, exhibits a texture similar to that of wood, and exhibits excellent antimicrobial properties, thereby inhibiting the growth of bacteria.

It is an object of the present invention to provide a coating composition for architectural use comprising purified water, cement, a binder, a salt, a pigment and a waterproofing agent, wherein the binder comprises 60 to 90% by weight of a liquid silicate and 10 to 40% Lt; / RTI >

According to a preferred feature of the present invention, the architectural coating composition comprises 10 to 20 wt% of purified water, 5 to 15 wt% of cement, 15 to 25 wt% of binder, 5 to 15 wt% of starch, 35 to 45 wt% of pigment, To 8% by weight.

According to a further preferred feature of the present invention, it is assumed that the aqueous solution of the acid salt exhibits a mass concentration of 10 to 80%.

According to a further preferred feature of the present invention, the above-mentioned abrasive is made of at least one selected from the group consisting of ilite, pozzolan, sericite, dolomite and feldspar.

According to a further preferred feature of the present invention, the pigment is made of iron oxide.

According to an even more preferred feature of the present invention, the paint composition showing the texture of the wood further comprises 5 to 10 parts by weight of an antimicrobial substance based on 100 parts by weight of the paint composition.

According to a further preferred feature of the present invention, the antimicrobial substance is at least one selected from the group consisting of silver, copper, nickel, zinc and germanium.

The architectural coating composition according to the present invention is excellent in water resistance, acid resistance and light fastness, and maintains its physical properties for a long period of time, exhibits excellent adhesion with metal or concrete structures, and exhibits an excellent effect of suppressing peeling.

In addition, it contains stones and antimicrobial substances, and exhibits an excellent effect of inhibiting the growth of bacteria because it exhibits a texture similar to wood and exhibits excellent antimicrobial properties.

Hereinafter, preferred embodiments of the present invention and physical properties of the respective components will be described in detail with reference to the accompanying drawings. However, the present invention is not limited thereto, And this does not mean that the technical idea and scope of the present invention are limited.

The composition for architectural use according to the present invention is composed of purified water, cement, binder, abrasive powder, pigment, and waterproofing agent, and comprises 10 to 20 wt% of purified water, 5 to 15 wt% of cement, 15 to 25 wt% of binder, 35 to 45% by weight of a pigment, and 3 to 8% by weight of a waterproofing agent.

The purified water is contained in an amount of 10 to 20% by weight. The cement, the binder, the salt, the pigment, and the waterproofing agent constituting the coating composition according to the present invention are evenly mixed to exhibit uniform physical properties.

If the content of the purified water is less than 10% by weight, the above components may not be uniformly mixed and can not exhibit uniform physical properties. If the content of the purified water exceeds 20% by weight, the content of water may be excessively increased, The viscosity is lowered, and the phenomenon of flowing down after being applied to the adherend occurs.

The cement is contained in an amount of 5 to 15% by weight and acts as a binder. The cement serves to bind the binder, the stone, the pigment and the waterproofing agent, and at the same time, the texture of the wood according to the present invention To thereby firmly adhere to the paint composition.

When the content of the cement is less than 5% by weight, the above-mentioned effect is insignificant. When the content of the cement exceeds 15% by weight, the flowability of the coating composition for building is lowered and the efficiency in the coating process is lowered. Cracks and the like may occur.

The binder is contained in an amount of 15 to 25% by weight, and the adhesiveness of the coating composition for building according to the present invention is increased, so that the peeling phenomenon occurs after the coating composition for construction is applied to the structure made of metal or synthetic resin as well as the concrete structure .

The binder preferably comprises 60 to 90% by weight of a liquid silicate and 10 to 40% by weight of an aqueous acidic solution, and the acidic aqueous solution preferably has a concentration of 10 to 80% by weight. Is environmentally friendly because it does not use harmful organic solvents, and also contributes to imparting flame retardancy to a coating composition for architectural use.

In addition, since the acidic salt is used as a method for stabilizing the liquid silicate in the binder, a desired effect can be obtained by dissolving an acidic salt of a kind similar to or having the same effect as the component of the adherend, (For example, zinc chloride, ferric sulfate) to be applied to iron in order to facilitate adhesion to the glass, and tin salts (e.g., Tin chloride) is preferably dissolved. However, as the binder for application to iron, it is preferable not to use chloride to prevent corrosion. In addition, acidic salts such as magnesium chloride, strontium chloride, lithium chloride, barium chloride, cobalt chloride, magnesium sulfate, barium chloride and manganese chloride show an ion fixing effect in the silicate, but the physical properties of the adherend to which the coating composition is applied are considered .

If the content of the binder is less than 15% by weight, the above-mentioned effect is insignificant. If the content of the binder exceeds 25% by weight, the content of other components may be reduced.

The above-mentioned abrasive contains 5 to 15% by weight. When the coating composition showing the texture of the wood according to the present invention is cured after being applied to the adherend, the cured surface plays a role of giving a texture similar to that of wood.

At this time, it is preferable to use one having at least one particle selected from the group consisting of ilite, pozzolan, sericite, dolomite and feldspar, and having a particle size of 0.5 to 3 millimeters, If the particle size of the above-mentioned abrasive exceeds 3 millimeters, the particle size is excessively large, which makes it difficult to form a film on the adherend.

If the content of the abrasive grains is less than 5% by weight, the above-mentioned effect is insignificant. If the content of the abrasive grains exceeds 15% by weight, the content of the cement and the binder may be decreased and the adhesion of the coating composition for construction may be deteriorated.

The pigment is contained in an amount of 35 to 45% by weight and is made of iron oxide. It not only plays a role of imparting hue to the coating composition according to the present invention, but also changes the physical properties of the coating composition according to the present invention when exposed to acid rain or ultraviolet rays And maintains its original color for a long period of time.

When the content of the pigment is less than 35% by weight, the color of the coating composition is reduced. When the content of the pigment exceeds 45% by weight, the content of the pigment is excessively high as compared with other components, .

It is preferable to use TEXACON-9000, which is commercially available as an acrylic copolymer mixture or a product, because the waterproofing agent contains 3 to 8% by weight. The waterproofing agent comprising the above components is excellent in stretchability, It is possible to provide a composition for a paint which not only exhibits excellent waterproofing effect but also exhibits excellent weatherability since the ratio of occurrence of cracks in the coating film is remarkably reduced when applied.

In addition, the architectural coating composition may further contain 5 to 10 parts by weight of an antimicrobial substance based on 100 parts by weight of the coating composition for architectural use. When the antimicrobial substance of the content range is contained, the bacterial growth is inhibited Resulting in excellent antimicrobial activity.

When the content of the antimicrobial substance is less than 5 parts by weight, the antibacterial property is lowered. When the content of the antimicrobial substance exceeds 10 parts by weight, the content of the cement, binder, abrasive, pigment and waterproofing agent is lowered, But also the effect of showing a texture similar to wood can be deteriorated.

The antimicrobial material preferably comprises at least one selected from the group consisting of silver, copper, nickel, zinc, and germanium, and more preferably has a particle size of 0.5 to 3 millimeters. The antimicrobial substance having improved antibacterial activity with the architectural coating composition and exhibiting uniform antimicrobial activity.

Accordingly, the architectural coating composition according to the present invention is excellent in water resistance, acid resistance and light fastness, maintains its physical properties for a long period of time, exhibits excellent adhesion with metal or concrete structures to suppress peeling, Not only shows a texture similar to that of wood, but also exhibits excellent antimicrobial properties, thereby inhibiting the growth of bacteria.

Claims

Purified water, cement, binder, stone, pigment and waterproofing agent,
Wherein the binder comprises 60 to 90% by weight of liquid silicate and 10 to 40% by weight of an acidic aqueous solution.

The method according to claim 1,
The architectural paint composition is characterized by comprising 10 to 20 wt% of purified water, 5 to 15 wt% of cement, 15 to 25 wt% of binder, 5 to 15 wt% of starch, 35 to 45 wt% of pigment and 3 to 8 wt% of waterproofing agent By weight.

The method according to claim 1,
Wherein the acidic aqueous solution exhibits a mass concentration of 10 to 80%.

The method according to claim 1 or 2,
Wherein the at least one selected from the group consisting of sunlight, pozzolan, sericite, dolomite and feldspar.

The method according to claim 1 or 2,
Wherein the pigment is made of iron oxide.

The method according to claim 1 or 2,
Characterized in that the paint composition showing the texture of the wood further comprises 5 to 10 parts by weight of an antimicrobial substance based on 100 parts by weight of the paint composition.

The method of claim 6,
Wherein the antimicrobial material is at least one selected from the group consisting of silver, copper, nickel, zinc and germanium.