KR100951918B1 - Method of manufacturing finishing paiting materials for constructure - Google Patents

Abstract

PURPOSE: Paint for a finishing material is provided to adsorb volatile organic compounds, formaldehyde, carbon dioxide, bacteria and heavy metal and to ensure excellent handling and storage stability. CONSTITUTION: A method for manufacturing paint for finishing materials comprises the steps of: mixing silica, alumina, and hydroxide ion in an aqueous phase and performing hydrothermal reaction of the mixture at 150-200 °C for 10-15 hours, and then preparing monodispersed zeolite colloid solution by ball milling with zirconia balls of 3-20 micron; injecting charcoal powder, surfactant and NaOH into the zeolite colloidal solution, mixing the materials at 130-150 °C for 1-2 hours, and drying the mixture to form porous charcoal powder; mixing 5-30 parts by weight of porous charcoal powder, 30-40 parts by weight of acrylic emulsion, 1-15 parts by weight of titanium dioxide, 20-30 parts by weight of limestone, 1-10 parts by weight of quartz, and the remaining portion of water at 500-1000 rpm for 1-3 hours to prepare paint for finishing materials.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a method for manufacturing a coating material for civil engineering construction,

The present invention relates to a method for producing a coating material for civil engineering construction, and more particularly, to a method for producing a coating material for civil engineering construction which is excellent in decomposition of harmful substances, emission of far-infrared rays and negative ions, and excellent handling and storage stability.

As a finishing material for indoor and outdoor civil engineering construction, cement generates hazardous substances such as leachate of strong alkali and volatile organic compounds that are fatal to the human body, causing harmful effects to health and hygiene. Also, it is used for wallpaper, (VOCs) and formaldehyde (HCHO) to cause various diseases such as atopic dermatitis, headache, inflammation, discomfort, eye, nose and throat nerve paralysis.

Generally, in the case of a finish material used for finishing an interior wall of a building, a non-volatile vehicle and a volatile vehicle, which are prepared by mixing synthetic resin as a binder with a coating film forming auxiliary such as plasticizer, dispersant, wetting agent, defoamer, Water and a pigment, it is not free from the above problems.

Accordingly, natural resins, dendrimers, and natural paints extracted from potato plants have been proposed as methods for solving such problems, but they are not generally used because of exposing problems in economic efficiency, raw material supply and painting workability.

In addition, functional paints designed to remove contamination of the indoor air and provide a beneficial effect to the human body by mixing a photocatalyst, a porous material, a far-infrared ray or an anion emission material with the above water-soluble paint have been proposed. However, And the durability is low due to poor compatibility with the binder. In addition, it is difficult to set a proper composition ratio between the additive components, thereby causing problems such as duplication and offset of the characteristics, and the emission of far-infrared rays and anions is not sufficient.

Accordingly, a technical problem to be solved by the present invention is to provide a method for producing a finish material coating material for civil engineering construction, which is excellent in decomposition of harmful substances, emission of far-infrared rays and anions, as well as handling and storage stability.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems,

(Al (NO ₃ ) ₃ ), aluminum sulfate (Al (SO ₄ ) ₃ ), aluminum sulfate (Al (SO ₃ ) ₃ ), at least one alumina selected from the group consisting of aluminum chloride (AlCl ₃ ), sodium aluminate (NaAlO ₂ ) and aluminum hydroxide (Al (OH) ₃ ), sodium hydroxide (NaOH), potassium hydroxide And lithium hydroxide (LiOH) are mixed in an aqueous liquid phase, hydrothermally reacted at 150 to 200 ° C for 10 to 15 hours, and ball milled with zirconia balls having a particle size of 3 to 20 μm to obtain monodispersed Preparing a zeolite colloid solution (step S1); and preparing at least one selected from the group consisting of charcoal, charcoal, bamboo charcoal and chaff charcoal as 50 A surfactant and sodium hydroxide are added to the mixture and the mixture is stirred at 130 to 150 ° C for 1 to 2 hours and then dried to form a porous charcoal powder (Step S2), and the whole of the coating material for civil engineering construction 5 to 30 parts by weight of the porous charcoal powder, 30 to 40 parts by weight of acrylic emulsion, 1 to 15 parts by weight of titanium dioxide, 20 to 30 parts by weight of limestone, 1 to 10 parts by weight of zirconium and the balance water at a rate of 500 to 1000 rpm And then agitating the mixture for 1 to 3 hours to produce a finish material coating material for civil engineering construction (step S3).

According to an embodiment of the present invention, the molar ratio of each of the silica, alumina and hydroxyl ion is 20 to 50 for SiO ₂ to water (H ₂ O) and 30 to 50 for aluminum (Al) 50, and hydroxyl ions relative to the SiO ₂ may be 2 to 10.

According to another embodiment of the present invention, the surfactant may be at least one selected from the group consisting of alcohols, alpha olefins, and amine oxides.

According to another embodiment of the present invention, the char powder may be in the range of 0.1 to 1 kg per 1 liter of the zeolite colloidal solution.

The method for producing a coating material for civil engineering architectural construction according to the present invention is characterized in that it absorbs volatile organic compounds, formaldehyde, carbonic acid gas and the like, bacteria and heavy metals, and emits far-infrared radiation and anions, The paint is prepared.

Hereinafter, the present invention will be described in more detail.

The method for producing a finishing coating material for civil engineering construction according to the present invention is characterized in that at least one of silica selected from the group consisting of tetraorthosilicate (TEOS), colloidal silica, fumed silica and sodium silicate and aluminum nitrate (Al (NO _{3 3) 3),} aluminum sulfate _{(Al (SO 4) 3)} , and aluminum chloride (AlCl _3), sodium aluminate (NaAlO ₂₎ and at least one of alumina selected from the group consisting of aluminum hydroxide (Al (OH) _3), And at least one hydroxyl ion selected from the group consisting of sodium hydroxide (NaOH), potassium hydroxide (KOH) and lithium hydroxide (LiOH) is mixed in an aqueous liquid phase, hydrothermally reacted at 150 to 200 ° C for 10 to 15 hours, (Step S1) of preparing a monodispersed zeolite colloid solution by ball milling with a zirconia ball having a diameter of 20 탆, and a step of mixing the zeolite colloid solution with charcoal, charcoal, bamboo charcoal At least one selected from the group consisting of rice bran charcoal and rice husk charcoal, is pulverized into a size of 50 to 100 mu m, and a surfactant and sodium hydroxide are added thereto. The mixture is stirred at 130 to 150 DEG C for 1 to 2 hours and then dried to form porous charcoal powder 5 to 30 parts by weight of the porous charcoal powder, 30 to 40 parts by weight of acrylic emulsion, 1 to 15 parts by weight of titanium dioxide, 20 to 30 parts by weight of limestone, 1 to 10 parts by weight of limestone, (Step S3) of producing a finish material coating material for civil engineering construction by stirring the water at a rate of 500 to 1000 rpm for 1 to 3 hours.

First, in step S1, at least one of silica selected from the group consisting of tetraorthosilicate (TEOS), colloidal silica, fumed silica and sodium silicate, aluminum nitrate (Al (NO ₃ ) ₃ ) _{(Al (SO 4) 3)} , aluminum chloride (AlCl _3), sodium aluminate (NaAlO ₂₎ and aluminum hydroxide (Al (OH) ₃₎ at least one of alumina, sodium hydroxide (NaOH) selected from the group consisting of hydroxide, Potassium hydroxide (KOH) and lithium hydroxide (LiOH) are mixed in an aqueous liquid phase, hydrothermally reacted at 150 to 200 ° C. for 10 to 15 hours, and then subjected to zirconia ball milling To prepare a monodisperse zeolite colloid solution.

The silica, alumina, and hydroxyl ions are precursors that form zeolite, wherein silica and alumina are formed from aluminosilicate, and the hydroxyl ion is involved in the hydrolysis and condensation of the aluminosilicate.

Also, the silica, alumina and hydroxyl ions are prepared in the form of water (H ₂ O) as an aqueous solution, wherein the molar ratio of SiO ₂ to H ₂ O is 20 to 50, The molar ratio of Al to Si is from 30 to 50, and the molar ratio of hydroxyl ion to SiO ₂ is in the range of from 2 to 20, If the content of the hydroxyl ion exceeds the upper limit value, the hydrothermal synthesis may not be performed properly. On the other hand, if the content of the hydroxyl ion is less than the lower limit, the hydroxyl ion may not act as the hydroxyl ion.

On the other hand, the silica, alumina and hydroxyl ions are prepared as an aqueous solution and mixed and hydrothermally reacted at 150 to 200 ° C for 10 to 15 hours. When the reaction temperature is low, the synthesis time becomes long. On the other hand, And the time is shortened. The zirconia ball is a ball made of zirconium oxide (ZrO ₂ ) having a particle diameter of 3 to 20 μm. If the particle diameter is less than 3 μm, the manufacturing cost is increased, The average particle size of the zeolite particles is more than 100 nm. If the average particle size of the zeolite particles exceeds 20 nm, the adsorption on the surface or pores of the charcoal powder in the post- Can be reduced.

Next, in step S2, at least one selected from the group consisting of charcoal, charcoal, bamboo charcoal and chaff charcoal is charged into the zeolite colloid solution, and the charcoal powder, surfactant and sodium hydroxide pulverized to a size of 50 to 100 mu m are introduced Mixing at 130 to 150 ° C for 1 to 2 hours, and then drying to form a porous charcoal powder.

In the zeolite colloid solution, the zeolite particles are present at a particle diameter of several tens of nanometers, and the zeolite particles are adsorbed on pores and surfaces of a char powder to be described later and have a role of deodorization, dehumidification and removal of harmful substances. The storage stability is improved.

In addition, the charcoal powder is not particularly limited in the method of pulverizing the char, and the size of the charcoal powder is prepared to be in the range of 50 to 100 mu m. If the charcoal powder is less than 50 mu m, On the other hand, when the coating material for civil engineering construction is actually applied according to the present invention, the roughness of the shape to be coated on the coated surface increases and the quality thereof deteriorates. On the other hand, It may be difficult to control the expression of black color.

If the amount of the zeolite particles is less than 0.1 kg, the zeolite particles adsorbed on the charcoal powder may be excessive and the inherent function of the char may be deteriorated. On the other hand, when the amount of the adsorbent exceeds 1 kg, the adsorption amount of the zeolite may become very small.

The surfactant may be at least one selected from the group consisting of alcohols, alpha olefins, and amine oxides. Ethyl alcohol, isopropylalcohol, and the like may be used as the alcohol. The alpha olefin system may be an alpha olefin sulfonic acid salt or the like, and the amine oxide may be an alkyl dimethyl amine oxide, an alkanolamide, or the like.

On the other hand, the charcoal powder processed with charcoal such as charcoal, charcoal, bamboo charcoal and chaff charcoal has a large porosity of several tens of micrometers or more, which is suitable for adsorbing the zeolite particles, Sodium hydroxide monohydrate forms in the component, and the amorphous or crystalline component of the zeolite particles is again polymerized and adsorbed.

In addition, the charcoal powder, the surfactant and the sodium hydroxide are mixed together with the zeolite colloid solution at a reaction temperature of 130 to 150 ° C for 1 to 2 hours, wherein the reaction time becomes shorter as the reaction temperature becomes higher, The sodium hydroxide hydrate is polymerized and adsorbed. At this point, the mixture is dried after the end of the mixing. The purity may be increased by adding a conventional filtration or washing process.

Next, in step S3, 5 to 30 parts by weight of the above-mentioned porous charcoal powder, 30 to 40 parts by weight of acrylic emulsion, 1 to 15 parts by weight of titanium dioxide, 20 to 30 parts by weight of limestone, To 10 parts by weight of water and the remaining water at 500 to 1000 rpm for 1 to 3 hours to prepare a coating material for civil engineering construction.

The porous charcoal powder may be used in an amount of 4 to 10 parts by weight, and if it is less than 4 parts by weight, it may be difficult to exhibit its functions such as adsorption and humidity. On the contrary, if the amount exceeds 10 parts by weight, So that it is difficult to develop various colors.

The acrylic emulsion is used in an amount of 30 to 40 parts by weight, but is not particularly limited as a binder of the finish coating material according to the present invention. If the amount is less than 30 parts by weight, the adhesion strength, If the amount is more than 40 parts by weight, the content of the other components may be insufficient and the function of the finish material may be weakened.

It is known that titanium dioxide (TiO ₂ ) has a function of removing formaldehyde and VOCs, has an antibacterial and sterilizing effect. If the content is less than 1 part by weight, its role may be difficult to manifest On the other hand, if it exceeds 15 parts by weight, the production cost may increase and the strength of the coating film after the application may be lowered.

In addition, 20 to 30 parts by weight of the limestone (Calcite, CaCO ₃ ) is used, and far-infrared radiation and anions are released in large quantity to help the human body. If the amount is less than 20 parts by weight, On the other hand, when the amount of the component (B) is more than 30 parts by weight, there may be a problem of deterioration of stain resistance after application and deterioration of workability due to a high oil absorption amount, resulting in deterioration of strength and adhesion of the coating film.

If the amount of the silica is less than 1 part by weight, the strength of the coating film after the application and the decrease of the amount of the far infrared ray radiation are decreased. A problem may occur. On the other hand, if the amount exceeds 10 parts by weight, the adhesion of the coating film may be deteriorated.

In addition to the titanium dioxide, limestone, and silica, additives such as a corrosion inhibitor, an anti-settling agent, an emulsifier, a dispersant, a thickener, a defoamer, an antiseptic, a surfactant and the like may be added depending on the season or the local climatic environment.

On the other hand, the porous charcoal powder, titanium dioxide, limestone, silica and the remainder of water are stirred at 500 to 1000 rpm for 1 to 3 hours. If less than 500 RPM, the porous charcoal powder is not uniformly dispersed , Excessive stirring time may be required. On the other hand, if the stirring speed is more than 1000 RPM, a large amount of bubbles may be generated at the time of agitation, and the agitation time is shortened as the agitation speed is increased, and longer as the agitation speed is increased.

The finishing coating material for civil engineering and construction according to the present invention contains a large amount of porous inorganic materials and thus has a strong attraction force to provide a beneficial effect such as deodorization and sterilization. In addition, it is preferable that the application area is 9.4 m 2 / ℓ, the drying time is 30 minutes in touch-dry, 1 hour in curing and drying, and the drying time is at least 2 hours in re-coating.

Hereinafter, the present invention will be described in more detail with reference to Examples and Test Examples. However, it should be understood that the present invention is not limited by the following examples, and various modifications and changes may be made without departing from the scope of the present invention.

Example 1

Sodium silicate, sodium aluminate (NaAlO ₂ ) and sodium hydroxide were added to 25 mol of silicon dioxide (SiO ₂ ), 40 mol of aluminum (Al) relative to silicon (Si) per 1 liter of distilled water, 5 mol, hydrothermal reaction was carried out at 160 DEG C for 13 hours, and ball milling was performed for 3 hours with zirconia balls having an average particle size of 10 mu m to obtain a zeolite colloid solution. Next, bamboo charcoal and rice husk charcoal were added to 1 liter of the zeolite colloid solution, 500 g of ground charcoal powder having an average particle size of 80 mu m, 10 ml of isopropyl alcohol and 10 g of sodium hydroxide as a surfactant were added and mixed at 135 DEG C for 2 hours The filtration and washing were repeated twice, and the temperature of the infrared drier was dried at 50 DEG C for 24 hours to obtain a porous charcoal powder. Next, 10 parts by weight of the porous charcoal powder, 35 parts by weight of acrylic emulsion, 3 parts by weight of titanium dioxide, 25 parts by weight of limestone, 5 parts by weight of zirconium and 22 parts by weight of water were stirred at 800 rpm for 2 hours, .

Test Example

The coating material for civil engineering construction, prepared in Example 1, was coated on a gypsum board having a size of 40 × 40 × 10 (mm) to a thickness of 35 μm and dried to prepare test pieces.

(1) Deodorization test

The deodorizing effect was measured using a test piece manufactured by the above-mentioned test specimens. The test method was KICM-FOR- 1004 test standard was used. The results are shown in Table 1 below.

Test Items Elapsed time (minutes) Blank Concentration (ppm) Sample concentration (ppm) Deodorization rate (%)   Deodorization test Early 500 500 - 30 490 150 70 60 480 110 77 90 450 80 79 120 440 75 80

(Blank: measured without sample)

As shown in the test results of Table 1, the gas concentration was measured every 30 minutes using a gas detection tube. The deodorization rate was 70% after the first 30 minutes and the deodorization rate was 80% after 120 minutes As the deodorization rate (%) gradually increased, most of the ammonia gas was adsorbed and removed and the deodorization efficiency was very high.

On the other hand, the container in which the sample is not injected showed no change in the deodorization rate (%) except for the amount of ammonia gas that is naturally extinguished as the sample is sampled by the gas detector tube.

(2) Far-infrared radiation test

And the far-infrared radiation effect of the test piece was measured. The results are shown in Table 2 below. The test results are the result of measurement of the black body using an FT-IR spectrometer at 40 ° C.

Emissivity (5 to 20 탆) Radiant energy (W / m2 占 퐉, 37 占 폚) 0.903 3.63 × 10 ²

(3) Anion emission test

The anion releasing effect of the test piece was measured with the aid of IM Chemical Co., Ltd. The results are shown in Table 3 below.

sample Anion (ION / cc) The test specimen coated with the aqueous coating composition 112

1) Test method: KFLA-FI-1042

2) The test was carried out at room temperature of 20 ° C, humidity of 34% and atmospheric anion number of 102 / cc using a charge particle measuring device. The result is the result of measuring the number of ION per unit volume by measuring the anion released from the object to be measured.

(4) Antibacterial test

The antimicrobial effect of the test pieces was measured according to the ASTM G-21 test standard, and the results are shown in Table 4 below.

<Fungus Strain>

Aspergillus niger ATCC  9642

Penicillum ATCC  11797

Chaetomium globosum ATCC  6205

Gliosiadium vires ATCC  9645

Aureobasidium pullulans ATCC  15233

Name of sample Test Items Period of culture test  Aqueous coating composition Antifungal test After 1 week after 2 weeks After 3 weeks After 4 weeks 0 0 0 0

In the above test, "0" indicates that the growth of bacteria in the sample can not be recognized.

Claims (4)

At least one silica selected from the group consisting of tetraorthosilicate (TEOS), colloidal silica, fumed silica and sodium silicate,
Aluminum nitrate _{(Al (NO 3) 3)} , aluminum sulfate _{(Al (SO 4) 3)} , aluminum chloride (AlCl _3), sodium aluminate (NaAlO ₂₎ and from the group consisting of aluminum hydroxide (Al (OH) ₃₎ At least one selected alumina,
And at least one hydroxyl ion selected from the group consisting of sodium hydroxide (NaOH), potassium hydroxide (KOH) and lithium hydroxide (LiOH) is mixed in an aqueous liquid phase, hydrothermally reacted at 150 to 200 ° C for 10 to 15 hours, Preparing a monodispersed zeolite colloid solution by ball milling with a zirconia ball of 20 m (step S1);
At least one selected from the group consisting of charcoal, charcoal, bamboo charcoal and rice husk charcoal is charged into the zeolite colloid solution, and the charcoal powder, surfactant and sodium hydroxide pulverized to a size of 50 to 100 mu m are introduced into the zeolite colloid solution, Mixing and drying the mixture to form porous charcoal powder (step S2); And
5 to 30 parts by weight of the above-mentioned porous charcoal powder, 30 to 40 parts by weight of acrylic emulsion, 1 to 15 parts by weight of titanium dioxide, 20 to 30 parts by weight of limestone, 1 to 10 parts by weight of zeolite, And stirring the mixture at a speed of 500 to 1000 rpm for 1 to 3 hours to produce a finish material coating material for civil engineering construction (step S3).
The method according to claim 1,
The silica, alumina and hydroxyl ions respective molar ratio of the water and with respect to the (H ₂ O) SiO ₂ 20 to 50, an aluminum (Al) is 30 to 50 with respect to silicon (Si), hydroxy respect to SiO ₂ hydroxyl Lt; RTI ID = 0.0 &gt; 1-10, &lt; / RTI &gt; wherein the ion is 2-10.
The method according to claim 1,
Wherein the surfactant is at least one selected from the group consisting of alcohols, alpha olefins, and amine oxides.
The method according to claim 1,
Wherein the char powder is in the range of 0.1 to 1 kg per liter of the zeolite colloid solution.