KR101894453B1 - Volatile organic compound elimination coatings containing graphin, platinum, and titanium dioxide and methods for producing the same - Google Patents

Abstract

The present invention relates to a volatile organic compound removing coating agent which contains graphene, platinum, and titanium dioxide, and a method for producing the same. Specifically, volatile organic compounds on indoor spaces can be easily removed by coating glass using the volatile organic compound removing coating agent, and the volatile organic compound removing coating agent has excellent coating adhesion properties, durability, and antifouling properties with respect to glass. The volatile organic compound removing coating agent also has high transparency, and has excellent adhesive properties to pollen, which is the cause of pollen allergies and atopic dermatitis, and house dust, which is the cause of asthma.

Description

TECHNICAL FIELD [0001] The present invention relates to a coating agent for removing volatile organic compounds including graphene, platinum, titanium dioxide, and a method for producing the coating agent. BACKGROUND ART [0002]

TECHNICAL FIELD The present invention relates to a coating composition for removing volatile organic compounds including graphene, platinum and titanium dioxide, and a process for producing the same. More particularly, the present invention relates to a coating composition for glass, which can effectively remove volatile organic compounds in a room, Which is excellent in durability and antifouling property, is excellent in transparency, is excellent in adhesion to pollen, atopic dermatitis and asthma, which is a cause of pollen allergy, and a method for producing the above coating agent.

The following description merely provides background information related to the present invention and does not constitute the prior art.

We live on earth and we live near the air and we drink a lot each day. The daily intake of food is 2-2.5 kg, but the amount of air we ingest is about 20 kg, and the intake of air is about 10 times that of food. Generally, you can get several bottles while drinking contaminated air.

Particularly, volatile organic compounds which are the cause of sick house syndrome, pollen which is the cause of pollen allergy, atopic dermatitis and house dust, which are the cause of asthma are among the causes that make the normal life of the residents difficult.

Korean Patent Application No. 10-2009-0049140 discloses a coating composition comprising alkaline ionized water, methanol, hydrogen peroxide, sodium chloride (NaCl), isopropyl methylphenol, and an extract of Siberiania as a countermeasure against the double volatile organic compound Respectively.

However, to date, there has been little research on the use of glass windows in most buildings to improve indoor air quality.

The present invention can effectively remove volatile organic compounds in a room, and is excellent in coating adhesiveness, durability, and antifouling property to glass, has excellent transparency, and can be used as a cause of pollen, atopic dermatitis and asthma, And an object of the present invention is to provide a method for producing the above coating agent.

The present invention also relates to a cosmetic composition which is capable of effectively removing volatile organic compounds by coating with the above-mentioned coating agent, has excellent durability and antifouling property, is excellent in transparency, is excellent in pollen and atopic dermatitis which is a cause of pollen allergy, And is capable of easily removing pollen and house dust.

In order to solve the above problem,

(a) 0.01-1% by weight of graphene solution;

(b) 0.1-5% by weight of titanium dioxide;

(c) 0.01-0.9 wt% of platinum;

(d) 1-30% by weight of silica;

(e) 30 to 50% by weight of Carnauba wax;

(f) 1-30% by weight of ethanol; And

(g) 1-10% by weight of water;

And a volatile organic compound removal coating agent.

Also,

(a) 0.01-1% by weight of graphene solution;

(b) 0.1-5% by weight of titanium dioxide;

(c) 0.01-0.9 wt% of platinum;

(d) silica 1-30 wt%

(e) 5-30% by weight of a ladder-type silsesquioxane polymer resin represented by the following formula (1);

(f) 1-40% by weight of ethanol; And

(g) water 1-20%

A volatile organic compound removal coating comprising:

[Chemical Formula 1]

Wherein R1 is independently selected from the group consisting of hydrogen; halogen; An amine group; (Meth) acrylic group; A phenyl group; A C1 to C10 alkyl group; A C2-C10 alkenyl group; An aryl group of C6 to C40; A C3 to C40 heteroaryl group,

R11 each independently represents an epoxy group; (Meth) acrylic group; A diazo group; Isocyanate group; A phenyl group; A C1 to C10 alkyl group; A C2-C20 alkenyl group; A C1 to C10 alkoxy group; An aryl group of C6 to C40; A C3 to C40 heteroaryl group,

n is an integer of 2 to 200;

Preferably, the graphene solution is an oxide solution obtained by oxidizing graphene in a state where impurities are removed by pretreatment.

More preferably, the graphene solution is prepared by heating 50 ml of sulfuric acid (H2SO4) to 90 占 폚 using a hot water heater, adding 10 g of potassium persulfate (K2S2O8) and 10 g of phosphorus pentoxide, The stirred mixture was cooled to 80 DEG C, 12 g of graphite was added thereto, and the mixture was reacted for 4 to 5 hours. After heating was stopped, the mixture was diluted with 2 L of distilled water for 12 hours while stirring. The graphite was sieved using a nylon filter to extract the solution. The extracted solution was put in a 2 ° C beaker in a 0 ° C thermostat, 460 ml of sulfuric acid was put in a beaker, and the pretreated graphene was placed in a beaker and stirred. 60 g of potassium permanganate (KMnO 4) was added to the beaker and stirred until the mixture was completely dissolved. The beaker was taken out from the beaker, placed in a 35 ° C. thermostatic chamber and stirred for 2 hours. The mixture was further stirred at 40 ° C. to 50 ° C. distillation The mixture was stirred for 2 hours while 920 mL was divided into 20 to 30 mL. 2.8 L of water was added thereto and diluted with stirring for 3 hours. 20 to 30% by weight of hydrogen peroxide (H2O2) was added to 100% And a mixture of hydrogen chloride (HCl) and distilled water at a weight ratio of 1: 2 was added so as to correspond to PH 5 to 7.

The volatile organic compound removal coating agent may further include 1 to 10% by weight of bar-shaped zinc oxide having a length of 20 to 200 nm and an aspect ratio of 2 to 8.

The volatile organic compound removal coating agent may further contain 0.1 to 5% by weight of an initiator or a curing agent.

The volatile organic compound removal coating agent may further include at least one additive selected from the group consisting of a curing accelerator, an antioxidant, a defoaming agent, a leveling agent, a water repellent agent, a flame retardant agent, or an adhesion improver.

Preferably, the volatile organic compound removal coating agent is coated on the surface of the glass.

The present invention also provides a glass comprising a coating layer capable of removing volatile organic compounds.

Preferably, the thickness of the coating layer is 1 to 100 mu m.

Also,

(a) 0.01-1% by weight of graphene solution; (b) 0.1-5% by weight of titanium dioxide; (c) 0.01-0.9 wt% of platinum; (d) 30 to 50% by weight of (e) Carnauba wax after mixing 1 to 30% by weight of silica in a Z-Mill and mixing for 10 to 30 minutes; (f) 1-30% by weight of ethanol; And (g) 1-10 weight% of water, and stirring the mixture for about 30 to 50 minutes after being placed in a stirrer.

Also,

(a) 0.01-1% by weight of graphene solution; (b) 0.1-5% by weight of titanium dioxide; (c) 0.01-0.9 wt% of platinum; (d) 1-30% by weight of silica are mixed in a Z-Mill and mixed for about 10 to 30 minutes, (e) 5-30% by weight of a ladder-type silsesquioxane polymer resin represented by the following formula (1); (f) 1-40% by weight of ethanol; And (g) 1 to 20% by weight of water and stirring the mixture for about 30 to 50 minutes after being placed in a stirrer.

[Chemical Formula 1]

Wherein R1 is independently selected from the group consisting of hydrogen; halogen; An amine group; (Meth) acrylic group; A phenyl group; A C1 to C10 alkyl group; A C2-C10 alkenyl group; An aryl group of C6 to C40; A C3 to C40 heteroaryl group,

R11 each independently represents an epoxy group; (Meth) acrylic group; A diazo group; Isocyanate group; A phenyl group; A C1 to C10 alkyl group; A C2-C20 alkenyl group; A C1 to C10 alkoxy group; An aryl group of C6 to C40; A C3 to C40 heteroaryl group,

n is an integer of 2 to 200;

The volatile organic compound removal coating agent according to the present invention can effectively remove volatile organic compounds in a room, has excellent coating adhesion, durability and antifouling property to glass, has excellent transparency, and has a pollen and atopic dermatitis And the adherence to house dust, which is the cause of asthma, is excellent.

In addition, the glass according to the present invention can effectively remove volatile organic compounds by coating the volatile organic compound removal coating agent, and is excellent in durability and antifouling property, and has excellent transparency. The glass according to the present invention can prevent pollen, atopic dermatitis and asthma It is possible to easily remove the pollen and the house dust paper because of its excellent adhesion to the house dust as a causative substance.

1 is a schematic view of a glass according to an embodiment of the present invention.
2 illustrates a method of forming a coating layer on a glass using a volatile organic compound removal coating agent according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

The volatile organic compound removal coating agent of the present invention is a volatile organic compound removal coating agent particularly suitable for a window with a large amount of ultraviolet ray irradiation, and is coated with a coating material having a specific mixing ratio of graphene, titanium dioxide, platinum and silica in a Carnauba wax or a specific structure Ladder-type silsesquioxane polymer resin is used as a binder, and ethanol and water in a specific amount are used as a mixed solvent.

The volatile organic compound removal coating agent of the present invention comprises (a) 0.01-1% by weight of a graphene solution; (b) 0.1-5% by weight of titanium dioxide; (c) 0.01-0.9 wt% of platinum; (d) 1-30% by weight of silica; (e-1) 30 to 50% by weight of Carnauba wax; (f) 1-30% by weight of ethanol; And (g) 1-10% by weight of water.

When the volatile organic compound removal coating agent of the present invention comprises a ladder-type silsesquioxane polymer resin, (a) 0.01-1 wt% of graphene solution; (b) 0.1-5 wt% of titanium dioxide; (c) 0.01-0.9 wt% of platinum; (d) 1-30% by weight of silica; (e-2) 5 to 30% by weight of a ladder-type silsesquioxane polymer resin represented by Formula 1; (f) 1-40% by weight of ethanol; And (g) 1-20% by weight of water; . ≪ / RTI >

The graphene of the present invention is a material having two-dimensional planar structure of honeycomb connected with each other in the form of hexagonal carbon, and graphene is the material having the best characteristics among the existing materials, and the thickness is as thin as 0.2 nm It is high in transparency and can deliver 100 times more current than copper at room temperature, 100 times faster than silicon. In addition, the thermal conductivity is twice as high as the highest diamond. Also, the mechanical strength is more than 200 times stronger than steel, but it is stretchable so that it does not lose its electrical conductivity even when stretched or folded.

Preferably, in the present invention, (a) the graphene solution may be a graphene oxidizing solution obtained by oxidizing graphene. At this time, the graphene oxidizing solution can be produced by the following method. 10 g of potassium persulfide (K2S₂O ₈ ) and 10 g of phosphorus pentoxide were added to 50 ml of sulfuric acid (H2SO4) heated to 90 캜 using a hot water heater, and the mixture was stirred until the mixture was melted. After cooling, 12 g of graphite was added and allowed to react for 4 to 5 hours. The heating was stopped and the mixture was diluted with 2 L of distilled water for 12 hours while stirring. The diluted solution was filtered using a 0.2 μm nylon filter After extraction, extract only the solution. Thereafter, a 2-liter beaker was placed in a 0 ° C thermostatic chamber, 460 ml of sulfuric acid was put in a beaker, and the pre-treated graphene was placed in a beaker and stirred. To the beaker was added 60 g of potassium permanganate (KMnO₄) Then, the beaker was taken out of the beaker and placed in a 35 ° C thermostatic chamber. The mixture was stirred for 2 hours. While maintaining the temperature at 40-50 ° C in a 0 ° C thermostat bath, 920 ml of distilled water was divided into 20-30 ml, After stirring, 2.8 L of water was added and diluted with stirring for 3 hours. 20-30 parts by weight of hydrogen peroxide (H 2 O 2) was added to 100 parts by weight of the diluted material, and hydrogen chloride (HCl) and distilled water were mixed in a weight ratio of 1: To a pH of 5 to 7. In the coating agent of the present invention, the content of the graphene solution is preferably 0.01-1% by weight, and in this case, the removal efficiency, durability, antifouling property and transparency of the coating layer can be satisfied at the same time.

(B) titanium dioxide included in the coating agent of the present invention; (c) platinum; And (d) silica, may be used. Those materials preferably have a mean particle diameter of 20-99 nm. In this case, the removal efficiency, durability, antifouling property and transparency of the coating layer can be satisfied at the same time.

The coating agent of the present invention may be (e-1) canna wax or (e-2) a ladder-type silsesquioxane polymer resin represented by the above formula (1).

The ladder-type silsesquioxane polymer resin represented by Formula (1) or (e-2) the (e-1) canada wax or the (e-2) . (E-2) The ladder-type silsesquioxane polymer resin represented by Formula (1) is used in an amount of 30 to 50% by weight of the coating agent when the (e-1) % ≪ / RTI > by weight. In this case, the removal efficiency, durability, antifouling property and transparency of the coating layer can be satisfied at the same time.

Particularly, the coating agent of the present invention (e-2) is excellent in transparency of the coating layer and is suitable for use in a transparent glass because the coating layer containing the ladder-type silsesquioxane polymer resin represented by the above formula (1) In this case, the coating agent may further contain the polymer resin and the usable initiator or the curing agent in the range of 0.1 to 5 wt%.

The coating agent of the present invention also includes (f) ethanol and (g) water. The above (f) ethanol and (g) water may be prepared separately, but they may be mixed and commercially available ones may be used.

In the coating agent of the present invention, (f) ethanol and (g) water facilitate uniform mixing and coating of the coating components, and in particular, (e-1) canna wax or (e-2) It is excellent in compatibility with the ladder-type silsesquioxane polymer resin, thereby improving the human safety, storage stability and coating property of the coating agent.

Preferably, the coating of the present invention may further comprise 1 to 10% by weight of rod-shaped zinc oxide having a length of 20 to 200 nm and an aspect ratio of 2 to 8. The zinc oxide may be a commercially available zinc oxide. When the coating agent of the present invention contains the zinc oxide, it can exhibit more excellent removal efficiency of volatile organic compounds, improve adhesion performance of pollen and house dust, and further improve antifouling property and transparency of the coating layer.

Further, the coating agent of the present invention may further contain additives as required. Preferably 0.1 to 5 wt.%, Independently, of at least one additive selected from the group consisting of an antioxidant, a defoaming agent, a leveling agent, a water repellent agent, a curing accelerator, a flame retardant agent, or an adhesion promoter so that the usability of the volatile organic compound- Can be further improved.

The coating agent according to the present invention comprises (a) 0.01-1% by weight of a graphene solution; (b) 0.1-5% by weight of titanium dioxide; (c) 0.01-0.9 wt% of platinum; (d) 30 to 50% by weight of (e) Carnauba Wax after mixing 1 to 30% by weight of silica in a Z-Mill and mixing for 10 to 30 minutes; (f) 1-30% by weight of ethanol; (A) 0.1 to 5% by weight of titanium dioxide, 0.01 to 1% by weight of platinum, 0.1 to 5% by weight of platinum, and (b) 5.9% by weight of silica and 1 to 30% by weight of silica were mixed in a Z-Mill for 10 to 30 minutes and then mixed with 5-30% by weight of a ladder-type silsesquioxane polymer resin represented by Formula 1; (f) 1-40% by weight of ethanol; And (g) 1 to 20% by weight of water, stirring the mixture for about 30 to 50 minutes.

Preferably, 1 to 10% by weight of the rod-shaped zinc oxide having a length of 20 to 200 nm and an Aspcet ratio of 2 to 8 is mixed with the Z-Mill, and if necessary, an initiator or a curing agent and an additive May be further mixed with a stirrer to prepare a coating agent.

The present invention also provides a glass comprising a coating layer capable of removing volatile organic compounds. FIG. 1 is a schematic view of a glass according to an embodiment of the present invention, and FIG. 2 shows a method of manufacturing glass according to an embodiment of the present invention.

In the present invention, the glass 20 may be a window glass 20, and the coating layer 30 may be formed on one surface or both surfaces of the glass 20. Preferably, The above-described volatile organic compound removal coating agent of the present invention is preferable.

In the method of manufacturing the glass 20 having the coating layer 30 formed thereon, the graphene solution is first prepared (S10) as prepared in the method of manufacturing the coating material, and then (a) 0.01-1 weight% of the graphene solution; (b) 0.1-5% by weight of titanium dioxide; (c) 0.01-0.9 wt% of platinum; (d) 30 to 50% by weight of (e) Carnauba wax after mixing (S100) with 1 to 30% by weight of silica in a Z-Mill and mixing for 10 to 30 minutes; (f) 1-30% by weight of ethanol; (A) graphene in an amount of 0.01 to 1% by weight, titanium dioxide in an amount of 0.1 to 5% by weight, platinum (Pt) ) And 0.01 to 5.9% by weight of silica and 1 to 30% by weight of silica are mixed in a Z-Mill and mixed for about 10 to 30 minutes (S100). Thereafter, the ladder-type silsesquioxane polymer resin 5-30 %; (f) 1-40% by weight of ethanol; (G) 20 to 20% by weight of water and stirring the mixture in an agitator for about 30 to 50 minutes (S200). The coated layer is coated on the glass (20) with a coating layer (30) The final coating layer 30 may be formed by drying or curing the coating layer 30 (S400). As a specific example, the coating method may be dip coating, spin coating or spray coating, and drying or curing may be performed by applying heat to the coating layer 30 at 50 to 150 ° C to dry or cure the coating layer.

In the present invention, the thickness of the coating layer 30 can be arbitrarily adjusted by those skilled in the art, and preferably 1 to 100 mu m. In this case, the removal efficiency, durability, antifouling property and transparency of the coating layer can be satisfied at the same time.

In particular, in the case of the semi-transparent or non-transparent glass 20, it is preferable that the coating layer 30 is formed using a coating agent containing the (e-1) canna wax. In the case of (e-2) And a coating layer 30 comprising a ladder-type silsesquioxane polymer resin represented by the general formula (1).

According to the present invention, the coating layer 30 formed on the glass contains not only formaldehyde but also ammonia, methyl mercaptan, hydrogen sulfide, dimethyl sulfide, dimethal disulfide, trimethylamine, acetaldehyde, styrene, propionaldehyde, butylaldehyde, n -Valeric aldehyde, i-valeraldehyde, toluene, xylene, methyl ethyl ketone, methyl isobutyrate ketone, butyl acetate, propionic acid, n-butyric acid, n- valeric acid, i- valeric acid, It is possible to reduce the amount of the volatile organic compound by 70% or more, preferably 75% or more, and to adhere to the coating layer 30 easily without removing the pollen and house dust from the room, There is an effect of improving the surrounding environment.

Claims (15)

(a) 0.01-1% by weight of graphene solution;
(b) 0.1-5% by weight of titanium dioxide;
(c) 0.01-0.9 wt% of platinum;
(d) silica 1-30 wt%
(e) 30 to 50% by weight of Carnauba wax;
(f) 1-30% by weight of ethanol; And
(g) water 1-10 wt%
Or
(a) 0.01-1% by weight of graphene solution;
(b) 0.1-5% by weight of titanium dioxide;
(c) 0.01-0.9 wt% of platinum;
(d) silica 1-30 wt%
(e) 5-30% by weight of a ladder-type silsesquioxane polymer resin represented by the following formula (1);
(f) 1-40% by weight of ethanol; And
(g) water 1-20%
Lt; / RTI >
The graphene solution is an oxide solution obtained by oxidizing graphene in a state where impurities are removed by pretreatment,
The graphene solution,
10 ml of potassium persulfate (K2S2O8) and 10 g of phosphorus pentoxide were added to 50 ml of sulfuric acid (H2SO4) heated to 90 deg. C by using a hot water bath, stirred until the mixture was dissolved, and the mixed solution was cooled to 80 deg. Then, 12 g of graphite was added and reacted for 4 to 5 hours. After stopping the heating, the mixture was diluted with 2 L of distilled water for 12 hours while stirring, and the diluted solution was filtered using a 0.2 μm nylon filter to remove graphite And the extracted solution was put into a thermostatic chamber at 0 ° C in a 2 L beaker. 460 mL of sulfuric acid was placed in a beaker, and the pretreated graphene was placed in a beaker and stirred. 60 g of potassium permanganate (KMnO 4) was added to the beaker After the beaker was completely removed, the beaker was placed in a thermostatic chamber at 35 ° C. and stirred for 2 hours. The mixture was further divided into 20~30 mL of distilled water while keeping the temperature at 40 ° C. to 50 ° C. in a 0 ° C. thermostatic chamber 2'o clock (HCl) and distilled water were mixed at a ratio of 1: 2 by adding hydrogen peroxide (H2O2) in an amount of 20 to 30% by weight based on 100% by weight of the diluted product. By weight, based on the weight of the volatile organic compound, to a pH of 5 to 7.
[Chemical Formula 1]

Wherein R1 is independently selected from the group consisting of hydrogen; halogen; An amine group; (Meth) acrylic group; A phenyl group; A C1 to C10 alkyl group; A C2-C10 alkenyl group; An aryl group of C6 to C40; A C3 to C40 heteroaryl group,
R11 each independently represents an epoxy group; (Meth) acrylic group; A diazo group; Isocyanate group; A phenyl group; A C1 to C10 alkyl group; A C2-C20 alkenyl group; A C1 to C10 alkoxy group; An aryl group of C6 to C40; A C3 to C40 heteroaryl group,
n is an integer of 2 to 200; delete delete delete The method according to claim 1,
Characterized in that it further comprises 1 to 10% by weight of bar-shaped zinc oxide having a length of 20 to 200 nm and an aspect ratio (Aspcet ratio) of 2 to 8. The method according to claim 1,
Wherein the volatile organic compound removal coating agent further comprises 0.1 to 5 wt% of an initiator or a curing agent. The method according to claim 1,
A volatile organic compound removal coating agent further comprising at least one additive selected from the group consisting of an antioxidant, a defoaming agent, a leveling agent, a water repellent agent, a curing accelerator, a flame retardant or an adhesion improver. The method according to claim 1,
Wherein the coating agent is coated on the surface of the glass. delete delete delete delete delete delete delete

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