KR102241079B1 - A method for manufacturing water soluble insulation multi paint - Google Patents

Abstract

The present invention relates to an eco-friendly water-based insulating coating composition and a method of manufacturing the same, which has high drying speed, heat insulation, thermal insulation, anti-condensation properties, abrasion resistance, fire resistance, adhesiveness, thermal stability, impact resistance and water resistance, and is furthermore Specifically, aluminum zinc oxide (AZO) aqueous solution; Cesium tungsten oxide (CTO) aqueous solution; Emulsion resin; Titanium dioxide; And talc; It relates to a water-based heat insulating coating composition and a method for producing the same.

Description

A method for manufacturing water soluble insulation multi paint

The present invention relates to an eco-friendly water-based insulating coating composition and a method of manufacturing the same, having high drying speed, heat insulation, thermal insulation, anti-condensation properties, abrasion resistance, fire resistance, adhesion, thermal stability, impact resistance and water resistance Specifically, aluminum zinc oxide (AZO) aqueous solution; Cesium tungsten oxide (CTO) aqueous solution; Emulsion resin; Titanium dioxide; And talc; It relates to a water-based heat insulating coating composition and a method for producing the same.

When a coating film made from a paint is exposed to ultraviolet rays or heat for a long period of time, polymer chains constituting the coating film are crushed to deteriorate the characteristics of the coating film, and various contaminants may be generated during pulverization, which may cause environmental problems.

Meanwhile, as regulations on the environment are strengthened, regulations on the release of volatile organic compounds are becoming stricter in the fields of paints, coatings, and adhesives.

Therefore, even when exposed to ultraviolet rays or heat for a long period of time, the demand for water-soluble paints having a low content of volatile organic compounds and maintaining the properties of the coating film is rapidly increasing.

However, water-soluble paints have a disadvantage in that the drying speed is slower than that of solvent-type paints, so it takes a long time to construct, and there is a fatal drawback in terms of reliability due to deterioration of water resistance and abrasion resistance.

In this regard, Korean Patent Registration No. 10-1558876 discloses a water-soluble road surface coating composition comprising an acrylate or methacrylate repeating unit and comprising an acrylic resin crosslinked by a curing agent, a colored pigment, and an extender pigment. have.

However, the coating composition disclosed in the above document has a slow drying speed, and is still poor in heat insulation, heat shielding, anti-condensation properties, abrasion resistance, adhesion, thermal stability, impact resistance, and water resistance.

Korean Patent Registration No. 10-1558876 (2015.10.02.)

The present invention is to solve the problems of the prior art, the drying speed is fast, heat insulation, heat shielding, condensation prevention properties, abrasion resistance, fire resistance, adhesion, thermal stability, impact resistance and water resistance are excellent, eco-friendly water-based insulation It is an object to provide a coating composition.

In addition, it is an object of the present invention to provide a method for producing a water-based insulating coating composition that can be applied to concrete, steel plate, wood, wallpaper, wall, asphalt, etc. to improve heat insulation, heat insulation, abrasion resistance, water resistance, and the like.

In order to achieve the above object, the present invention provides an aluminum zinc oxide (AZO) aqueous solution; Cesium tungsten oxide (CTO) aqueous solution; Emulsion resin; Titanium dioxide; It provides an aqueous coating composition comprising; and talc.

In one embodiment of the present invention, the composition comprises 5 to 30% by weight of an aluminum zinc oxide aqueous solution; 5 to 30% by weight of an aqueous solution of cesium tungsten oxide; 15 to 40% by weight of an emulsion resin; 15 to 40% by weight of titanium dioxide; And 5 to 20% by weight of talc.

In one embodiment of the present invention, the emulsion resin is characterized in that at least one selected from acrylic emulsion resin, polyurethane emulsion resin, polyvinyl acetate emulsion resin, silicone emulsion resin, polyamide emulsion resin, and polyester emulsion resin. .

In addition, the present invention comprises the steps of preparing an aqueous solution of aluminum zinc oxide; Preparing an aqueous solution of cesium tungsten oxide; And mixing the aluminum zinc oxide aqueous solution, the cesium tungsten oxide aqueous solution, the emulsion resin, titanium dioxide, and talc.

In addition, the present invention provides a product comprising the water-based paint composition, wherein the product is a paint, a coating agent, or an adhesive.

The present invention has a fast drying speed, heat insulation, heat insulation, anti-condensation properties, abrasion resistance, fire resistance, adhesion, thermal stability, impact resistance and water resistance, and can provide an eco-friendly water-based insulating coating composition.

In addition, the present invention can provide a method for producing a water-based insulating coating composition that can be applied to concrete, steel plate, wood, wallpaper, wall, asphalt, and the like to improve heat insulation, heat insulation, abrasion resistance, water resistance, and the like.

The present invention will be described in detail based on the following examples. The terms, examples, etc. used in the present invention are merely exemplified to explain the present invention in more detail and to aid the understanding of those skilled in the art, and the scope of the present invention should not be interpreted as being limited thereto.

Technical terms and scientific terms used in the present invention represent the meanings commonly understood by those of ordinary skill in the art, unless otherwise defined.

The present invention provides an aluminum zinc oxide (AZO) aqueous solution; Cesium tungsten oxide (CTO) aqueous solution; Emulsion resin; Titanium dioxide; And talc; relates to an aqueous coating composition comprising.

The aqueous coating composition may include 5 to 30% by weight of an aluminum zinc oxide aqueous solution; 5 to 30% by weight of an aqueous solution of cesium tungsten oxide; 15 to 40% by weight of an emulsion resin; 15 to 40% by weight of titanium dioxide; And 5 to 20% by weight of talc.

The aluminum zinc oxide (AZO) is used to improve thermal insulation, thermal insulation, anti-condensation properties, and durability.

The aluminum zinc oxide (AZO) aqueous solution is a form in which aluminum zinc oxide particles are dispersed in water, and an aqueous solution of 10 to 40% aluminum zinc oxide is preferably used.

When the concentration of aluminum zinc oxide in the aqueous solution is less than 10%, the thermal insulation property is deteriorated, and when it exceeds 40%, the dispersibility and processability are deteriorated.

The content of the aluminum zinc oxide aqueous solution is preferably 5 to 30% by weight, and if the content is less than 5% by weight, thermal insulation properties are deteriorated, and when it exceeds 30% by weight, dispersibility and processability are deteriorated.

The cesium tungsten oxide (CTO) is used to improve heat insulating properties, heat shielding properties, anti-condensation properties, and durability.

The cesium tungsten oxide (CTO) aqueous solution is a form in which cesium tungsten oxide particles are dispersed in water, and an aqueous solution of 10 to 40% cesium tungsten oxide is preferably used.

When the concentration of cesium tungsten oxide in the aqueous solution is less than 10%, heat insulating properties are deteriorated, and when it exceeds 40%, dispersibility and workability are deteriorated.

The content of the aqueous solution of cesium tungsten oxide is preferably 5 to 30% by weight, and if the content is less than 5% by weight, heat insulating properties are deteriorated, and when it exceeds 30% by weight, dispersibility and workability are deteriorated.

In addition, the weight ratio of aluminum zinc oxide and cesium tungsten oxide contained in the composition is preferably 40 to 70:30 to 60, and if the content is less than 40:60, thermal insulation is deteriorated, and if it exceeds 70:30, abrasion resistance and durability This is degraded.

The emulsion resin functions to increase the surface hardness of the coating film and to impart adhesion to the substrate, abrasion resistance, impact resistance, water resistance and weather resistance.

The emulsion resin may be used without limitation, at least one selected from acrylic emulsion resin, polyurethane emulsion resin, polyvinyl acetate emulsion resin, silicone emulsion resin, polyamide emulsion resin, and polyester emulsion resin.

For example, the acrylic emulsion resin is not particularly limited as long as it is a polymer having an acrylic group in the molecule, and may be prepared by polymerizing an acrylic monomer or copolymerizing an acrylic monomer with another monomer.

At this time, the content of the solid content contained in the acrylic emulsion resin is preferably 20 to 60% by weight.

The acrylic resin may be polymerized by emulsion polymerization, and it is preferable that it is an anionic acrylic resin to which anion is imparted. In order to prepare the anionic acrylic resin, an anionic surfactant or an anionic dispersant may be added during the emulsion polymerization of the acrylic resin, or an anionic surfactant or an anionic dispersant may be added after the emulsion polymerization of the acrylic resin.

As the anionic surfactant or anionic dispersant, a sulfate; Sulfonate; phosphate; Salts of fatty acids rosine and naphthenic acid; Concentrated product of naphthalene sulfonic acid and low molecular weight formaldehyde; Metal alkyl sulfates such as sodium lauryl sulfate; Salts such as dodecylbenzene sulfonic acid and isopropylbenzene sulfonic acid; Salts of alkyl aryl sulfonic acids such as isopropylnaphthalene sulfonic acid; Salts of alkyl sulfosuccinic acid such as dioctyl sulfosuccinic acid, sulfosuccinic acid, octyl sulfosuccinic acid, N-methyl-N-palmitoyl tauric acid, oleyl ethionic acid, and the like; Metal salts of alkylaryl polyethoxyethyl sulfuric acid, such as sodium t-octylphenoxy-polyethoxyethyl sulfate, and the like may be used.

Acrylic monomers used in the preparation of the acrylic resin are methyl acrylate, ethyl acrylate, propyl acrylate, isopropyl acrylate, n-butyl acrylate, isobutyl acrylate, n-amyl acrylate, isoamyl acrylate, n-hexyl acrylate, 2-ethylhexyl acrylate, hydroxymethyl acrylate, 2-hydroxyethyl acrylate, hydroxypropyl acrylate, lauryl acrylate, methyl methacrylate, ethyl methacrylate, propyl meth Acrylate, isopropyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, n-amyl methacrylate, isoamyl methacrylate, n-hexyl methacrylate, 2-ethylhexyl methacrylate, Hydroxymethyl methacrylate, hydroxypropyl methacrylate, lauryl methacrylate, acrylic acid, methacrylic acid, methyl acrylic acid, ethyl acrylic acid, butyl acrylic acid, 2-ethyl hexyl acrylic acid, decyl acrylic acid, methyl methacrylic acid, ethyl Methacrylic acid, butyl methacrylic acid, 2-ethyl hexyl methacrylic acid, decyl methacrylic acid, and the like.

The content of the emulsion resin is preferably 15 to 40% by weight, and when the content is less than 15% by weight, adhesiveness and abrasion resistance are deteriorated, and when it exceeds 40% by weight, dispersibility and processability are deteriorated.

The titanium dioxide is used to improve wear resistance and durability.

The content of titanium dioxide is preferably 15 to 40% by weight, and when the content is less than 15% by weight, durability and abrasion resistance are deteriorated, and when it exceeds 40% by weight, dispersibility and processability are deteriorated.

In addition, the titanium dioxide may be surface-treated with an acrylate group-containing silane coupling agent.

The acrylate group introduced on the surface of the titanium dioxide can improve the adhesive property with the emulsion resin to improve the heat insulation, water resistance, and abrasion resistance of the composition.

The content of the silane coupling agent is preferably 1 to 10 parts by weight based on 100 parts by weight of titanium dioxide, so that the thermal insulation properties of the composition can be maximized within the numerical range.

In addition, the titanium dioxide may be surface-treated with a copolymer of an acrylate group-containing silane coupling agent and an acrylic acid monomer.

The copolymer introduced on the surface of the titanium dioxide can improve the adhesive properties of the emulsion resin and water, thereby improving the heat insulation and dispersibility of the composition.

The content of the copolymer is preferably 1 to 10 parts by weight based on 100 parts by weight of titanium dioxide, and the thermal insulation and dispersibility of the composition may be maximized within the above numerical range.

The talc is used to improve wear resistance and weather resistance.

The content of the talc is preferably 5 to 20% by weight, and when the content is less than 5% by weight, weather resistance and abrasion resistance are deteriorated, and when it exceeds 20% by weight, dispersibility and impact resistance are deteriorated.

The coating composition may further include a copolymer of an acrylate group-containing silane coupling agent and an acrylic acid monomer in order to improve heat insulation and abrasion resistance.

The copolymer may improve adhesion of components in the composition and improve heat insulation, abrasion resistance, heat resistance, and water resistance.

As the acrylate group-containing silane coupling agent, 3-methacryloxypropylmethyldimethoxysilane, 3-methacryloxypropyltrimethoxysilane, 3-methacryloxypropylmethyldiethoxysilane, and 3-methacryloxypropyltri Ethoxysilane, 3-acryloxypropyltrimethoxysilane, methacryloxymethyltriethoxysilane, and methacryloxymethyltrimethoxysilane.

The acrylic acid monomer is acrylic acid, methacrylic acid, methyl acrylic acid, ethyl acrylic acid, butyl acrylic acid, 2-ethyl hexyl acrylic acid, decyl acrylic acid, methyl methacrylic acid, ethyl methacrylic acid, butyl methacrylic acid, 2-ethyl hexyl methacrylic acid , Decyl methacrylic acid, and the like.

The weight ratio of the acrylate group-containing silane coupling agent and the acrylic acid monomer is preferably 20 to 40:60 to 80, and in the above numerical range, the thermal insulation, abrasion resistance, and heat resistance of the composition may be maximized.

The copolymer of the acrylate group-containing silane coupling agent and acrylic acid monomer is used in 1 to 10% by weight, and when the content is less than 1% by weight, the effect of addition is insignificant, and when it exceeds 10% by weight, the drying speed of the coating film decreases. do.

The composition may further include an acrylate group-containing silane coupling agent.

The silane coupling agent may improve adhesion of components in the composition and improve wear resistance, heat insulation and water resistance. In particular, the silane coupling agent can improve adhesion properties with the emulsion resin.

As the acrylate group-containing silane coupling agent, 3-methacryloxypropylmethyldimethoxysilane, 3-methacryloxypropyltrimethoxysilane, 3-methacryloxypropylmethyldiethoxysilane, and 3-methacryloxypropyltri Ethoxysilane, 3-acryloxypropyltrimethoxysilane, methacryloxymethyltriethoxysilane, and methacryloxymethyltrimethoxysilane.

The acrylate group-containing silane coupling agent is used in an amount of 1 to 10% by weight, and when the content is less than 1% by weight, the effect of the addition is insignificant, and when it exceeds 10% by weight, adhesion is deteriorated.

The composition may further include an antiwear agent to improve wear resistance.

As the antiwear agent, fatty acid esters of sorbitan are used, and sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan monooleate, and the like may be used.

The anti-wear agent includes a polar portion and a non-polar portion, wherein the polar portion is adsorbed on the polymer surface, and the non-polar portion is composed of a long chain, thereby reducing friction of the composition and preventing abrasion.

The content of the antiwear agent is used in 1 to 10% by weight, and when the content is less than 1% by weight, the effect of the addition is insignificant, and when it exceeds 10% by weight, the thermal insulation property is deteriorated.

The antiwear agent may further include a fatty acid ester of polyoxyethylene sorbitan.

The fatty acid ester of polyoxyethylene sorbitan may be used without limitation, such as polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monostearate, and polyoxyethylene sorbitan monooleate. have.

When the fatty acid ester of sorbitan and the fatty acid ester of polyoxyethylene sorbitan are simultaneously used as the antiwear agent, the weight ratio of the fatty acid ester of sorbitan and the fatty acid ester of polyoxyethylene sorbitan is preferably 60 to 80:20 to 40 . When the above range is satisfied, the abrasion resistance and thermal insulation properties of the composition may be maximized.

In addition, the present invention comprises the steps of preparing an aqueous solution of aluminum zinc oxide; Preparing an aqueous solution of cesium tungsten oxide; And mixing the aluminum zinc oxide aqueous solution, the cesium tungsten oxide aqueous solution, the emulsion resin, titanium dioxide, and talc.

In addition, in the present invention, in a product comprising the water-based coating composition, the product is a paint, a coating agent, or an adhesive.

The aqueous coating composition of the present invention may be applied or coated on a substrate or road surface such as concrete, wall surface, building material, wallpaper, etc. by a known method, for example, brush, roll coating, spray coating, impregnation, or the like.

The thickness of the coating film is not particularly limited, and may be adjusted to a thickness of 0.1 μm to 20 mm depending on the application.

The coating film prepared from the water-based coating composition of the present invention has a fast drying speed, is eco-friendly, and has excellent heat insulation, thermal insulation, anti-condensation properties, abrasion resistance, fire resistance, adhesion, thermal stability, impact resistance, and water resistance.

The present invention will be described in detail through Examples and Comparative Examples below. The following examples are only exemplified for the practice of the present invention, and the contents of the present invention are not limited by the following examples.

(Example 1)

15% by weight of aluminum zinc oxide 20% aqueous solution; 15% by weight of a 20% aqueous solution of cesium tungsten oxide; 30% by weight of acrylic emulsion resin; 30% by weight titanium dioxide; And 10% by weight of talc were mixed to prepare an aqueous coating composition.

(Example 2)

2% by weight of aluminum zinc oxide 20% aqueous solution; 20% by weight of a 20% aqueous solution of cesium tungsten oxide; 38% by weight of acrylic emulsion resin; 30% by weight titanium dioxide; And 10% by weight of talc were mixed to prepare an aqueous coating composition.

(Example 3)

35% by weight of aluminum zinc oxide 20% aqueous solution; 10% by weight of a 20% aqueous solution of cesium tungsten oxide; 20% by weight of acrylic emulsion resin; 25% by weight titanium dioxide; And 10% by weight of talc were mixed to prepare an aqueous coating composition.

(Example 4)

15% by weight of 5% aqueous solution of aluminum zinc oxide; 15% by weight of a 20% aqueous solution of cesium tungsten oxide; 30% by weight of acrylic emulsion resin; 30% by weight titanium dioxide; And 10% by weight of talc were mixed to prepare an aqueous coating composition.

(Example 5)

15% by weight of 50% aqueous solution of aluminum zinc oxide; 15% by weight of a 20% aqueous solution of cesium tungsten oxide; 30% by weight of acrylic emulsion resin; 30% by weight titanium dioxide; And 10% by weight of talc were mixed to prepare an aqueous coating composition.

(Example 6)

15% by weight of aluminum zinc oxide 20% aqueous solution; 15% by weight of a 20% aqueous solution of cesium tungsten oxide; 27% by weight of acrylic emulsion resin; 30% by weight titanium dioxide and 10% by weight talc; And 3% by weight of a copolymer of 3-methacryloxypropyltrimethoxysilane and acrylic acid to prepare an aqueous coating composition.

(Comparative Example 1)

20% by weight of a 20% aqueous solution of cesium tungsten oxide; 35% by weight of acrylic emulsion resin; 35% by weight titanium dioxide; And 10% by weight of talc were mixed to prepare an aqueous coating composition.

(Comparative Example 2)

40% by weight of acrylic emulsion resin; 40% by weight titanium dioxide; And 20% by weight of talc were mixed to prepare an aqueous coating composition.

After forming a coating film from the coating composition prepared from the above Examples and Comparative Examples, heat insulation, heat resistance and water resistance were measured, and the results are shown in Table 1 below.

(Heat insulation)

After the coating composition prepared in Examples and Comparative Examples was applied to a glass substrate, the glass substrate on which the coating film was formed was installed at the entrance of the insulation box, and then heat was radiated from an infrared lamp disposed outside the insulation box.

After the lapse of 5 minutes and 10 minutes, the temperature inside and outside the insulation box was measured, and then the temperature change (external temperature-internal temperature) was measured.

(Heat resistance)

After the coating composition prepared in Examples and Comparative Examples was applied to a glass substrate, the formed coating film was dipped in a hot water heater at 80° C. for 1 hour to check the appearance and adhesion, and marked as excellent, excellent, moderate, and poor.

(Water resistance)

Water resistance was measured according to KS M ISO 1514. After drying for 72 hours, it was immersed in water, left for 24 hours, taken out, and dried at room temperature for 2 hours to observe the state of the coating film. At this time, the state of the coating film was marked as excellent, excellent, moderate, and poor.

division Example Comparative example One 2 3 4 5 6 One 2 Temperature change
(℃) 5 minutes elapsed 18.4 14.5 13.7 14.2 13.9 20.6 11.1 10.9 10 minutes elapsed 18.2 13.3 12.7 13.8 12.5 21.1 9.2 8.8 Heat resistance eminence usually Great Great usually eminence Bad Bad Water resistance eminence Great Great usually Great eminence Bad Bad

From the results of Table 1, it can be seen that Examples 1 to 6 are excellent in thermal insulation, heat resistance, and water resistance, and in particular, Examples 1 and 6 are the most excellent in the above properties.

On the other hand, it can be seen that the comparative example has poorer properties than the example.

Claims (5)

Aluminum zinc oxide aqueous solution;
Cesium tungsten oxide aqueous solution;
Emulsion resin;
A copolymer of an acrylate group-containing silane coupling agent and an acrylic acid monomer;
Titanium dioxide; And
In the aqueous coating composition comprising talc;
5 to 30% by weight of an aluminum zinc oxide aqueous solution; 5 to 30% by weight of an aqueous solution of cesium tungsten oxide; 15 to 40% by weight of an emulsion resin; 1 to 10% by weight of a copolymer of an acrylate group-containing silane coupling agent and an acrylic acid monomer; 15 to 40% by weight of titanium dioxide; And 5 to 20% by weight of talc,
The emulsion resin is at least one selected from acrylic emulsion resin, polyurethane emulsion resin, polyvinyl acetate emulsion resin, silicone emulsion resin, polyamide emulsion resin, and polyester emulsion resin,
The aluminum zinc oxide (AZO) aqueous solution has a concentration of aluminum zinc oxide of 10 to 40%,
The aqueous solution of cesium tungsten oxide (CTO) aqueous coating composition, characterized in that the concentration of cesium tungsten oxide is 10 to 40%.
delete delete delete In a product comprising the water-based coating composition of claim 1,
The product is a product, characterized in that the paint, coating or adhesive.