KR101041123B1 - A composite of paint to adsorbent of vocs having multi-function and its manufacture method - Google Patents

Abstract

PURPOSE: A multifunctional volatile organic compound-adsorbable paint composition is provided to adsorb volatile organic compounds and to ensure excellent antibacterial activity and anti-mold performance. CONSTITUTION: A method for preparing an organic compound-adsorbable paint composition comprises the steps of: preparing a viscosity control agent; injecting R-TiO2 into the viscosity control agent and stirring them; injecting a water-soluble acrylic resin into the stirred solution, adding silane and ethanol, and hydrolyzing silane through the mixing to perform the bonding with acryl in a molecular unit; and injecting an isothiazolin-based antiseptic, diatomaceous earth, calcium carbonate, kaolin, inorganic antibacterial agent, and antifoaming agent, adding an antifoaming agent after mixing, and defoaming them through low speed stirring.

Description

A composite of paint to adsorbent of VOCs having multi-function and Its manufacture method

The present invention relates to a multifunctional volatile organic compound adsorption coating composition and a method for manufacturing the same, and more particularly, it can adsorb VOCs, and has excellent antibacterial activity and aviation palm performance. The present invention relates to a multifunctional volatile organic compound adsorbent coating composition and a method for preparing the same.

Interior finishing of houses in modern buildings is usually done with wallpaper.

However, in order to smoothly spread the wallpaper, a super medium must be applied to the wall. When the super medium is used, a variety of pollutants such as formaldehyde and volatile odorous ingredients are contained in the super medium or the adhesive for applying the super medium, and as they are released, the human body Will adversely affect.

Therefore, the present inventors use 3.5 to 30% by weight of emulsion (resin), 0.1 to 5% by weight of polymer fiber, and 30 to 80 water for use as a substitute for super medium without using adhesives for applying super medium or super medium containing a lot of harmful substances. % By weight, 0.01-2% by weight of the film forming temperature control agent, 0.01-2% by weight of preservative, 0.1-5% by weight of R-TiO ₂ , 0.5-10% by weight of far infrared ray emitting material (porous ceramic powder), 10-50% by weight of calcium carbonate %, Thickener 0.1-3% by weight, anion-releasing material 0.1-3% by weight, antimicrobial material 0.01-2% by weight, antifoaming agent 0.1-3% by weight, and a functional ceramic coating composition consisting of 0.1-3% by weight of the patent registration No. 496241 There is a bar.

Therefore, by using the functional ceramic coating composition in place of the super medium of the papering process, deodorant, anion-releasing material, antibacterial material, and antifungal material are dispersed in the polymer resin and the inorganic resin, and the pleasant indoor air can be maintained and constructed. Labor and material costs can be significantly reduced.

However, the conventional functional ceramic coating composition used as a water-soluble acrylic emulsion or inorganic resin such as poly methyl-metacylate (PMMA), SM (styrene monomer), water glass, silicone resin, paraffin resin, etc. as an emulsion (resin), The SM emulsion contains benzene rings, and water glass has problems of whitening and lack of water resistance after drying.Silicone resins are expensive and have high releasability characteristics, making them difficult to repaint after drying. Paraffin resins have VOCs. There is a problem of emitting.

In the case of polymer fiber, it causes frequent nozzle clogging during spray spraying. Texanol, which is used as a film-forming temperature control agent, is an environmental pollutant, and R-TiO ₂ is not sufficiently concealed even when 5% by weight is used. The substance has a problem that the human stability has not been verified due to the controversy over the harmfulness to the natural radiation of minerals.

As described above, the conventional functional ceramic coating composition was developed to substitute the super medium of the papering process, but it is used only as the super medium, and thus it is not used as a variety of uses for finishing walls of the building, that is, as a base material and a finishing material, and in the selection of the additive composition. There is a drawback that has many problems.

To this end, the present invention can be used in a variety of applications, such as undercoats and finishing materials on the building wall, easy to adsorb VOCs (volatile organic compounds), multifunctional VOCs adsorption coating composition that can block the bacteria and mold formatting and its It is an object to provide a manufacturing method.

As such, the present invention can adsorb VOCs and provide a multifunctional adsorption paint composition having excellent antibacterial activity and aviation palm performance, and can be used as a coating material and a finishing material, thereby making the interior of a building more beneficial to the human body. It is a very useful invention that can be maintained in a comfortable state.

1 is a photograph for showing the antimicrobial test in the present invention.
Figure 2 is a photographic view for showing the air palm test in the present invention.
Figure 3 is a graph for showing the VOCs adsorption performance test results in the present invention.

The multifunctional volatile organic compound adsorption coating composition of the present invention is a silane compound binder 3.5 to 30% by weight, 30 to 80% by weight, ethanol 0.01 to 2% by weight, isothiazolin 0.01 to 2% by weight of system member, 0.1 to 20% by weight of R-TiO ₂ , 5 to 30% by weight of calcined diatomaceous earth, 1 to 30% by weight of calcium carbonate, 0.1 to 3% by weight of thickener, 0.01 to 0.5% by weight of thick catalyst, inorganic It consists of 0.01-2 weight% of antibacterial agents, and 0.1-3 weight% of antifoamers.

In the present invention, the content of the binder is preferably from 3.5 to 30% by weight, but less than 3.5% by weight is not expected to improve the strength, when more than 30% by weight of the gel (gel) speed is fast and has the disadvantage of poor storage Because.

At this time, the preferred mixing amount of the water-soluble acrylic resin without the benzene ring constituting the binder by the reaction and the hydrolyzed silane compound is 3.4-20% by weight of the water-soluble acrylic resin, and 0.1 for the hydrolyzed silane compound. It is -10 weight.

The silane is RxSi (OR ') ₄ -x or Si (OR) ₄ (x: 0-3), R is an alkyl group, an aryl group or an organofunctional group, OR' corresponds to a methoxy or ethoxy or acetoxy group.

As such, the water-soluble acrylic resin and the silane react with each other to be hydrolyzed, thereby ultimately improving the adhesive strength and increasing the bonding strength with the pigment.

In the present invention, water is used as a viscosity control and a solvent of various additives, using DI water, 30% by weight or less of the powder is not dispersed and impossible to mix, more than 80% by weight is too thin to add an excess of viscosity regulator Since it should be, the most preferable addition amount is 30 to 80 weight%.

In the present invention, ethanol functions as a film forming temperature control agent, the film forming temperature control agent plays a role in helping to form a resin film even at low atmospheric temperature. At this time, the preferred amount of the film-forming temperature control agent is 0.01 to 2% by weight, but less than 0.01% by weight is hardly absorbed by the ceramic powder so that it does not work, and more than 2% by weight is due to the decrease in adhesive strength.

In the present invention, the isothiazoline-based antifouling agent is added in a small amount in order to prevent corruption in circulation, and it is added only to a minimum function, and the addition amount is difficult to expect the effect at 0.01 wt% or less and affects the overall pH at 2 wt% or more. The amount of addition is appropriate 0.01 ~ 2% by weight because it causes problems in storage.

R-TiO ₂ is also referred to as R-sugar, and in the present invention, R-TiO ₂ is dispersed in water to increase turbidity and serves to improve hiding power when used in a coating material. In addition, it is widely used as a white pigment because it is well dispersed in water, and the amount of addition is less than 0.1% by weight, there is no concealing power, and in the case of more than 20% by weight, the function of the resin decreases. Preference is given to adding.

In the present invention, the functional ceramics are made of calcined diatomaceous earth with highly developed pores, but less than 5% by weight of the deodorizing effect is less than 30% by weight of the ceramic powder adsorbs a lot of resin to reduce the adhesion, so the addition amount is 5 -30 weight% is preferable. Of course, other functional ceramics may be used instead of calcined diatomaceous earth, but it is preferable to use a porous and far-infrared emission of more than 90% at 40 ℃, ammonia gas deodorization rate of more than 80% after 120 minutes.

In the present invention, calcium carbonate is used to improve the hiding power and to control the thickness of the coating film, and serves as a extender pigment, and improves storage stability, saturation and plasticity. At this time, calcium carbonate can be used by replacing with kaolin or talc (talc), it is preferable to use a powder of 1 ~ 40㎛ size.

When the amount of the calcium carbonate or kaolin is added in an amount of 1 wt% or less, it is too dilute in the overall mixture, and there is no workability. The addition amount of 30 weight% is the most preferable. At this time, the calcium carbonate and kaolin or talc may be added together.

In the present invention, as the thickener, a cellulose thickener or an acrylic thickener is used, and the thickener is used to increase the viscosity to prevent precipitation of the ceramic, and a cellulose thickener is mainly used, and the amount of the thickener is 0.1 wt% or less. It hardly thickens in water (solvent). In addition, more than 3% by weight is excessively thickened to give a mixer during the mixing process and interfere with the dispersion of other additives, so the most preferred amount is 0.1 to 3% by weight.

In the present invention, it is preferable to use 2-Amino-2-methyl-1-propanol as a thick catalyst, and the chemical formula of the thick catalyst is CH ₃ C (CH ₃ ) (NH ₂ ) CH ₂ OH. In this case, the thickening effect and the neutralization effect of formaldehyde have a very excellent effect.

At this time, the addition amount of the most preferable thick catalyst is 0.01 to 0.5% by weight, but when it is 0.01% by weight or less, the thickening effect is not good, and when it is 0.5% by weight or more, it is meaningless to increase the addition amount.

In the present invention, as an antimicrobial material, an inorganic antimicrobial agent is used, and among these, zirconium phosphate (Zirconium Phosphate) is preferably used in combination with an inorganic antimicrobial agent Ag + ion. Zirconium phosphate (Formula Zr (HPO ₄ ) ₂ yH ₂ O, y = 0-8) is used as a carrier and is an inorganic antibacterial agent that is Ag + ion as an active ingredient.

Ag + ions supported on a porous carrier such as a conventional zeolite is gradually dissolved and disappears in frequent contact with water, so the antimicrobial activity is lowered, but the inorganic antimicrobial agent when the Ag + ions chemically bonded to zirconium phosphate as in the present invention is almost semi-permanent Has characteristics.

The most preferred amount of the inorganic antimicrobial agent is 0.01 to 2% by weight, in the case of 0.01% by weight or less, only local antibacterial action is possible.

In the present invention, the antifoaming agent uses a metallic soap-based or silicone-based antifoaming agent, and the antifoaming agent is used to remove bubbles generated in the liquid composition itself or during mixing. At this time, the amount of the antifoaming agent is less than 0.1% by weight of the bubble is almost removed, more than 3% by weight of the emulsion is sharply lowered and the drying is not good, the most preferred amount is 0.1 to 3% by weight.

In the present invention, it is preferable to use an organic or inorganic pigment as the pigment, wherein a pigment which does not contain lead (Pb), mercury (Hg), cadmium (Cd), and chromium ion (Cr ⁶⁺ ) in the inorganic pigment is used. Among organic pigments, pigments other than volatile organic compounds having 6 or more carbon atoms should be used.

Pigments may be used when they are intended to give a color and may not be used.

The multifunctional volatile organic compound adsorption coating composition production method of the present invention is as follows.

22.9% by weight of water and 0.3% by weight of a thickener were added to a stirring tank and stirred at 400-600 rpm for 10 minutes, and 0.1% by weight of 2-Amino-2-methyl-1-propanol was added as a thick catalyst and stirred for 15 minutes to prepare a viscous liquid. Step 10, 10% by weight of R-TiO ₂ to the gastric viscous solution and stirred at 300 ~ 900rpm for 10-20 minutes, and 20% by weight of the water-soluble acrylic resin to the stirred solution and continued stirring at 300rpm ~ 600rpm Then, 0.2% by weight of silane and 2% by weight of ethanol were stirred at 300 to 600rpm for 30 minutes, and the silane was hydrolyzed and combined with acryl and molecular units, and 0.1% by weight of isothiazolin-based preservatives in the solution. , 25% by weight calcined diatomaceous earth, 13% by weight calcium carbonate, 5.8% by weight kaolin, 0.3% by weight inorganic antimicrobial agent, 0.1% by weight antifoaming agent and stirred at 300-800rpm for 60 minutes and then 0.2% by weight of antifoaming agent again and 10 minutes By degassing by stirring at low speed Are manufactured.

In this case, when coloring is required, the pigment is administered together with the calcined diatomaceous earth in the step of adding calcined diatomaceous earth and then stirred together to make the coloring.

As a result of testing the multifunctional volatile organic compound adsorption coating composition prepared by the method as described above, the antibacterial test resulted from the test strains as Pseudomonas aeruginosa and Escherichia coli, and the result was 99.99% of the antibacterial activity, which is shown in FIG.

The strains used were mixed with Aspergillus niger ATCC 6275, Chaetomium globosum ATCC 6205, Penicillium pinophilus ATCC 11797, Gliocladium virens ATCC 9645, and Aureobasidium pullurans ATCC 15233. It can be seen that there is, it is shown in FIG.

VOCs adsorption performance was measured by injecting 100ppb of TVOCs standard gas into the chamber and measuring the VOCs Area value for each specimen. The size of the MDF plate in the chamber was 200 mm long × 250 mm long and 6 mm thick. Compared with the case where the wallpaper was applied after coating the VOCs adsorption paint on the specimen (B) and when the wallpaper was applied to the cement (C), the VOCs concentration showed a difference of up to 2.5 times after 120 minutes.

As described above, the present invention has been described by means of a limited embodiment, but the present invention is not limited thereto and is intended by the person skilled in the art to which the present invention pertains to the technical spirit of the present invention and the claims to be described below. Various modifications and variations are possible within the scope of equivalents.

Claims (2)

Silane compound binder 3.5 to 30% by weight, water 30 to 80% by weight, ethanol 0.01 to 2% by weight, isothiazolin 0.01 to 2% by weight, R-TiO ₂ 0.1-20 wt%, calcined diatomaceous earth 5-30 wt%, calcium carbonate 1-30 wt%, thickener 0.1-3 wt%, thickener 0.01-0.5 wt%, inorganic antibacterial 0.01-2 wt%, antifoam 0.1-3 Multifunctional volatile organic compound adsorption coating composition, characterized in that the weight percent.
30% by weight of water and 0.3% by weight of a thickener were added to a stirring tank and stirred at 400 to 600 rpm for 10 minutes, and 0.1% by weight of 2-Amino-2-methyl-1-propanol as a thick catalyst was stirred and stirred for 15 minutes to prepare a viscous liquid. Steps,
10 wt% of R-TiO ₂ to the gastric viscous solution and stirred at 300 to 900 rpm for 10 to 20 minutes,
20 wt% of the water-soluble acrylic resin was added to the stirred solution, and the mixture was continuously stirred at 300 rpm to 600 rpm, 0.2 wt% of silane and 2 wt% of ethanol were added thereto, and stirred at 300 to 600 rpm for 30 minutes to hydrolyze the silane and to form acrylic and molecular units. Combining with,
The solution was administered with 0.1% by weight of isothiazolin-based anti-corrosion agent, 20.9% by weight of diatomaceous earth, 10% by weight of calcium carbonate, 5.8% by weight of kaolin, 0.3% by weight of inorganic antibacterial agent, 0.1% by weight of antifoaming agent, and 60 to 300-800 rpm. Method for producing a multi-functional volatile organic compound adsorption coating composition, characterized in that it is prepared by stirring for a minute and then administering 0.2% by weight of a defoaming agent and degassing by slow stirring for 10 minutes.

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