KR20000047801A - Functional paints - Google Patents

Abstract

PURPOSE: A functional pigments is provided which has a far-infrared radioactivity, an anion discharging property and an electronic wave absorptivity and controls the humidity. CONSTITUTION: A functional pigments comprises: (i) 30-70 wt.% charcoal; (ii) 30-70 wt.% liquid phase binder; and (iii) 0-40 wt.% spice and pigment. By hanging the lining paper prepared by coating the functional pigments on the one surface of the lining paper in an amount of 100-300 grams/square meters and hot-air drying it at a temperature of 50-70°C on the surface of the wall of a building constructed by cement, it is possible to easily eliminate an offensive smell generated from cement and harmful components and make the external appearances of the various structures beautiful and improve the durability by preventing the damage such as corrosion and the like.

Description

Functional paints {FUNCTIONAL PAINTS}

The present invention relates to a functional paint having far-infrared radiation function and anion emission function, controlling humidity and absorbing electromagnetic waves, and more specifically, 30 to 70% by weight of a charcoal, 30 to 70% by weight of a liquid binder, and a functional material. It relates to a functional paint, characterized in that it consists of a fragrance and 0 to 40% by weight of pigment.

As the industry develops, various functional products are manufactured and sold, and many products having functionalities such as far-infrared radiation are being researched and developed, and are being applied to many fields in practice.

In general, a variety of paints are used to enhance the durability of the appearance to various structures, such as buildings, and to prevent damage such as corrosion.

On the other hand, if there is not enough drying at the time of construction of various buildings, bad odors from the cement and emissions of harmful components occur severely, the above problems occur more severely if not enough drying at the time of construction, Even if the drying is perfect, there is a problem that the peculiar smell of cement occurs and the cement powder is buried.

In recent years, in order to minimize the damage caused by cement and express beneficial properties to the human body, a mixture containing components such as ocher, elvan, bioceramic, etc. is applied or mixed into cement on walls, floors, and ceilings formed with cement. Thus, the walls of buildings are formed.

However, the method used to apply a mixture containing functional materials such as ocher, elvan, bioceramic and the like to a wall surface or mix it with cement to form a wall surface in a building not only reduces the durability of the building but also is expensive. There was also an unsatisfactory disadvantage that the economical and unsolvable effects of problems arising from cement were also unsatisfactory. In addition, bioceramic, germanium, elvan, ocher, etc. are not actually applied much because other functionalities other than far-infrared radiation are not expressed.

In addition, various paints have a beautiful appearance on various structures such as buildings, and prevent damage such as corrosion, thereby improving durability, and paints having different effects have hardly been developed.

Accordingly, an object of the present invention is to not only remove the odor generated from the cement easily by controlling the humidity and absorbing the electromagnetic wave and having the ability to emit far infrared radiation and anion, and also have excellent removal efficiency of harmful components and various structures. The present invention provides a functional paint having an effect of enhancing the durability by enhancing the appearance and preventing damage such as corrosion.

In order to achieve the above object as well as another object that can be easily expressed in the present invention, the functional material is composed of 30 to 70% by weight of charcoal, 30 to 70% by weight of a liquid binder and 0 to 40% by weight of aroma and pigments. The functional paint is applied to the surface of various structures as well as general structures in an amount of 100 to 500 g / ㎡, which enables far-infrared radiation and anion-releasing ability, controls humidity, and easily absorbs odors generated from cement due to charcoal having the ability to absorb electromagnetic waves. Not only could it be removed, but also the removal efficiency of harmful components was excellent, and it was possible to obtain the effect of improving the durability by beautifully appearance on various structures and preventing damage such as corrosion.

1 is a gas concentration curve over time using ammonia.

2 is a graph showing the results of measuring the temperature and humidity of functional paints (25 ° C., 65% → 30 ° C., 65%).

Figure 3 is a graph showing the results of measuring the temperature and humidity of the functional paint (30 ℃, 65% → 30 ℃, 50%).

4 is a graph showing carbon dioxide gas measurement results of functional paints.

5 is a graph showing the measurement results of volatile organic compounds in functional paints.

The present invention is described in more detail as follows.

Functional paints according to the invention is characterized in that consisting of 30 to 70% by weight of the charcoal, 30 to 70% by weight of the liquid binder and 0 to 40% by weight of the flavor and pigment.

Charcoal, which is a functional material used in the present invention, has a far-infrared radiation function, emits negative ions, has excellent control of temperature and humidity, absorbs harmful magnetic waves such as electromagnetic waves and water waves, and has a deodorizing effect. It is known to have excellent effects such as preventing the occurrence of mold and harmful bacteria. Far infrared rays act deep inside the body to warm the body, promote blood circulation and help to recover from fatigue and waste discharge.

The main components of the above-mentioned charcoal are carbon (C ¹⁴ ) and minerals. When the wood absorbs Ca, K, Na, Mg, etc. from the soil and burns the char with wood, organic acids and moisture are evaporated and only carbon and minerals remain. Among the components, far infrared rays are estimated to be emitted by trace minerals such as germanium (Ge) component absorbed from the soil, and the emissivity reaches 93%. Negative ions function to smooth and metabolize the body by absorbing and neutralizing rapidly increasing cations due to various pollutions. A large amount of anions are generated from carbon, which is more than 85% of the components of charcoal. As it is an active electron, it supplies electrons (anions), which are easily lost by surrounding materials, to prevent rot, corrosion and oxidation due to the action of cations.

In addition, charcoal has a pore size of about 300㎡ per 1g, so it absorbs moisture when it is humid and emits moisture when it is dry, creating a pleasant indoor environment. It not only helps the health rhythm, but also helps maintain the health, and it also absorbs various microorganisms and odors that are harmful to the pores to prevent decay, deodorization, and antiseptic effect. When applied to the effect that can maintain a room temperature for a certain period of time.

On the other hand, charcoal has a weak alkalinity of pH 8-9, so that growth conditions such as mold and harmful bacteria are not suitable, and humidity control functions in parallel to prevent mold and harmful bacteria, as well as cockroaches. Charcoal absorbs water waves that are known to be generated from decayed water by blocking the electromagnetic waves harmful to the human body from the electronic products and underground vein flow, thereby protecting the human body from harmful electromagnetic waves.

It is effective to use 30 to 70% by weight of charcoal, and when the amount is less than 30% by weight, there is a weak point that the effect of charcoal such as far-infrared radiation efficiency is manifested, and when it exceeds 70% by weight. There is a high possibility that the charcoal is detached from the coating layer coated with the paint to be produced, and there is a problem that adhesion with the surfaces of various structures is not easily performed.

As the liquid binder used in the present invention, any liquid binder conventionally used in the technical field to which the present invention pertains may be used, and may have a fluidity to solidify the solid surface, and when the solidify, the volume shrinkage is small, and the temperature and humidity It is particularly effective that the stability of the adhesion due to internal stress caused by the stress is not impaired, and that the impact resistance that does not creep under long-term load is excellent is excellent. The liquid binder prevents the dispersion of charcoal and detachment of the charcoal from the coating layer. In order to facilitate adhesion to the surface of the structure, it is effective to use a solution and an emulsion-type synthetic resin liquid binder such as chloroprene, polyvinyl acetate, polyacrylic acid ester, polyvinyl alcohol, carboxymethyl cellulose and the like.

It is effective to use the amount of the liquid binder 30 to 70% by weight, the mixing ratio with the char can be determined through repeated experiments according to the surface characteristics of the structure to be applied, the type and characteristics of the liquid binder, the amount of the liquid binder If it is small, the charcoal is not uniformly dispersed, so even after a light impact, the charcoal may contain a large amount of charcoal, resulting in damage to the coated part. There is a disadvantage, such as is generated, if the amount is large, the amount of use of the charcoal is relatively reduced, there is a weakness in the functionality expressed from the charcoal.

Pigments and fragrances can be selected and used appropriately according to the taste of the consumer.When the amount of use exceeds 40% by weight, the amount of charcoal, which is a relatively functional substance, is reduced, or the amount of liquid binder is reduced, so that the functional expression is weak or applied. The problem of layer formation is not available.

First, 30 to 70% by weight of charcoal, 30 to 70% by weight of the liquid binder and 0 to 40% by weight of the flavor and pigment uniformly to prepare a functional paint of the present invention. At this time, it is effective to grind and add charcoal to fine powder as much as possible, and it is preferable to use what has a particle size of 320 mesh or less as much as possible.

In addition, the functional paint of the present invention can be prepared both in water or oil, can be prepared by mixing the charcoal powder 30 to 70% by weight in the production of conventional paint, aqueous can be used for indoor Meteor can be used both indoor and outdoor.

The coating method may be used all the methods commonly used in the technical field to which the present invention belongs, the coating amount is effective to 100 ~ 500g per 1㎡ of various structures surface, if the coating amount is less than 100g / ㎡ is applied to the surface of the structure The amount of charcoal is low, and the degree of expression of the effect from the charcoal, such as far infrared radiation efficiency, has a weak disadvantage, and when it exceeds 500g / ㎡ it is not easy to apply the functional paint of the present invention to the surface of the structure However, even after a light impact after the coating layer is formed, there is a risk that the coated portion is damaged due to the particularly high amount of charcoal, the desorption of the char is made easily, there is a problem such as cracks on the surface of the coating layer.

The functional paint of the present invention has far-infrared radiation and anion-emitting ability by controlling the humidity and absorbing the electromagnetic wave by first applying it to the surface of various structures such as cement wall or the like and then applying it with a known paint after the first application. Due to the charcoal, it can not only easily remove the odor generated from the cement, but also has high efficiency of removing harmful components, enhances durability by beautifully appearance on various structures, and prevents damage such as corrosion. Could get

The following examples and comparative examples illustrate the invention in more detail, but do not limit the scope of the invention.

The following examples and experimental examples do not explain the invention in more detail, but do not limit the scope of the invention.

<Example 1>

45 wt% of charcoal, 45 wt% of polyvinyl acetate, and 10 wt% of known fragrances and pigments were uniformly mixed to prepare a functional paint of the present invention. It was then applied to the walls, ceilings and floors of cement-built houses in an amount of 300 g per square meter.

The functional paints were commissioned by the Korea Institute of Construction Materials and Materials, using the method of KICM-FIR-1042, that is, the charge particle measuring device, to generate anions at room temperature of 22 ° C, humidity of 55% and anion water 80 / cc. Was measured and the number of ions released from the measured object was expressed as the number of ions per unit volume, which was 178 / cc. Deodorization effect was tested by the method of KICM-FIR-1004. Data for is shown graphically in FIG. 1.

Elapsed time (minutes) Blank concentration (ppm) Sample concentration (ppm) Deodorization rate (%) Early 500 500 - 30 480 170 65 60 470 140 70 90 450 120 73 120 440 110 75

1) Blank: Measured without sample

2) Test gas name: Ammonia

3) Gas concentration measurement: gas detector

Experimental Example 1

The temperature and humidity control ability, the CO ₂ gas adsorption performance, and the adsorption performance of volatile organic compounds (VOCs) on the functional paint prepared in Example 1 were evaluated.

That is, the functional paint prepared in Example 1 is applied inside a test chamber (where temperature (10-40 ° C.) and relative humidity (45-75%) can be adjusted) and the same chamber is not coated with the functional paint. The experiment was performed using.

First, the temperature and humidity were initially set at 25 ° C. and 65%, and then the temperature was increased to 30 ° C. and 65%. Then, the relative humidity was lowered to 30 ° C. and 50% again while changing the conditions of the indoor air environment laboratory. Temperature and humidity were measured, but the temperature and humidity sensor (thermo-hygrometer manufactured by SATO; model name SK_L200TH) was placed in each chamber, and data were continuously obtained at 5 minute intervals, and the results are shown in the graphs of FIGS. 2 and 3.

In addition, 5 l of CO ₂ gas with 11.1% concentration was injected into each chamber, and the change of carbon dioxide concentration in the chamber at about 2 minute intervals was measured using a multi-gas monitor (B & K-Type 1302) and a sampler and book (Sampler & Doser: B & K-Type 1303), measured and analyzed (B &K's 7620 program), and the results are shown and described in FIG. 4 and Table 2.

Initial concentration (ppm) Concentration after 4 hours (ppm) Reduction (ppm) Decay rate (%) Functional Coating Chamber 2876 2289 587 20.41 Functional Unpainted Chamber 3100 2584 516 16.64

In addition, 500 μl of toluene, ethylbenzene, and ortho-xylene were each taken into a vial, mixed with reagents into each chamber, and adsorbed onto a sampling tube (AMETEK-ALPHA-2) for each elapsed time. The adsorption performance of volatile organic compounds was evaluated by analysis (Chemstation program) using equipment and gas chromatography (GC / MSD: HP 5973), and the results are shown in FIG. 5.

As a result of confirming the wet air, the relative humidity drops to 48% when heating 25 ℃ and 65% air to 30 ℃, but the relative humidity of the chamber coated with the functional paint is about relative humidity compared to the chamber without the functional paint applied. It was found that the result was about 7% higher than the humidity control, and even when the relative humidity was changed, there was a difference in the relative humidity between the chamber coated with the functional paint and the chamber uncoated.

In addition, when comparing the initial carbon dioxide concentration value of the functional paint with the value after 4 hours, the attenuation rate in the chamber to which the functional paint was applied was 20.41%, which was higher than that of the chamber to which the functional paint was not applied. When the amount of volatile organic compounds in the chamber was the same, the concentration of volatile organic compounds in the chamber coated with the functional paint was measured to be low, which is considered to be due to the property of adsorbing volatile organic compounds on the functional paint.

As described above, in the present invention, the functional paint composed of 30 to 70% by weight of the charcoal, 30 to 70% by weight of the liquid binder, and 0 to 40% by weight of the fragrance and pigments is 100 to 500 g / m 2 on the surface of the general structure as well as various buildings. Charcoal with far infrared radiation and anion emitting ability, humidity control, and electromagnetic wave absorbing ability can be easily removed to remove odors from cement. Beautiful appearance to the structure, it was possible to obtain the effect of improving the durability by preventing damage such as corrosion.

Claims (1)

Functional paint, characterized in that consisting of 30 to 70% by weight of charcoal, 30 to 70% by weight of liquid binder and 0 to 40% by weight of flavor and pigment.