KR100522267B1 - Composition of a water-soluble acryl additives for anti static, and manufacture method thereof - Google Patents

Abstract

The present invention relates to an antistatic water soluble acrylic adhesive composition and an application using the same,

It is an object of the present invention to improve the electrostatic environment generated by the electric field present in the space, and to provide a composition having an antibacterial function and an application using the same.

The present invention for realizing this is made by including a conductive material in the water-soluble acrylic resin,

The composition thus prepared accumulates electric fields scattered in the space by self-resistance, thereby self-extinguishing the electric field as low heat by self-resistance heat, and at the same time neutralizes fine dust with charge through the removal of the electric field present in the space. It is possible to obtain the effect of preventing various bacteria.

Description

Composition of a water-soluble acryl additives for anti static, and manufacture method

The present invention relates to an antistatic water-soluble acrylic adhesive composition using sodium chloride and an application product using the same, and more particularly, to a composition and an application using the same to have an antistatic and antibacterial function in an acrylic adhesive, present in the space The present invention relates to a water-soluble acrylic adhesive composition having an antistatic function and antibacterial function by various bacteria, which is unnecessary by electromagnetic resistance by integrating an electric field, and an antistatic function, and an application product which can be manufactured using the same.

The static electricity accumulated in the whole electric field is generated from the electromagnetic waves emitted from electrical appliances or telecommunications and broadcasting antennas, as well as the shock of the human body, and the static electricity caused by instantaneous discharge is caused by friction and contact between materials. It is difficult to prevent itself. Therefore, in order to prevent such electrostatic interference, it is necessary to remove, neutralize and leak the generated electric charges. The fundamental problem of generated static electricity is the rupture and deterioration of electronic components by electrostatic shock, dust pollution and electro-static discharge (ESD) discharge. Although the present invention has the effect of preventing the rupture and deterioration of the electronic components by the ESD discharge, the adhesive to prevent the problem caused by the charged dust which is the basic purpose of the patent and the electrostatic phenomenon mainly generated in the winter relatively less moisture It is an application product manufactured by utilizing this technology. It aims to secure consumers' trust by showing the effect of attenuating the electric field in the inevitable electromagnetic waves such as various electric / electronic products and communication means as well as eliminating static electricity. . Many countries around the world regulate the use of mobile phones at gas stations because they can ignite gasoline particles under the influence of electric fields and cause a fire. Research supports the hypothesis that electric fields from power lines cause cancer. Researchers from the Department of Oncology at the University of Bristol in the UK found a number of cancer patients, especially lung cancer patients, living under the power line. This proves the theory of the same university physicist Dennis Henssho, whose electric field combines with pollutants in the air, adversely affecting the human body. Dr. Henshou argued that airborne contaminants, which were charged by the effects of electric fields generated by power lines, would have an adverse effect on the human body because they are more likely to accumulate in the human body than contaminants that do not have charge. He experimented with the presence of airborne contaminants, such as radon, bacteria and viruses, in the presence of an electric field. The experiment demonstrated that exposure to carcinogens around electric fields increases the risk of cancer in people living near power lines. He showed the selective accumulation of aerosols on the surface of power line fields using radon decay aerosols. The conclusions from these experiments are that "the concentration of aerosols in the air can be explained on the basis of basic physics," and "if the soft materials contain carcinogens that we know or are potentially capable of, "We can relate the exposure to the risk of cancer." As can be seen from these experimental studies, it can be seen that the human body may be adversely affected by the electric field in the electromagnetic waves.

The technique and the problems that have been proposed in the prior art for the removal of the electric field will be described below.

As a method of blocking an electric field to a known adhesive and a product using an electromagnetic shielding agent;

(1) In Korean Patent Laid-Open No. 2001-0004216, the electromagnetic wave shielding paint can be prepared by mixing a conductive polymer material having self-resistance to electromagnetic waves with a pigment and a resin in a state mixed with a BTX holding solvent. Electromagnetic shielding paint that can be prepared by mixing a mixture of organic solvents such as MEK, BTX and MEK, BTX and MIBK, MEK and MIBK or BTX, MEK and MIBK in a mixture of pigments and resins. Is published;

In the case of organic solvents, caution should be taken during or after use as a volatile substance that is toxic to the human body. In addition, the material of the conductive polymer used to have self-resistance is known to be a material that is difficult to commercialize due to the problem of loss of conductivity during processing at a high temperature and low price due to its high cost.

(2) Korean Unexamined Patent Application Publication No. 2002-0068730 relates to a coating material for shielding electromagnetic waves, wherein conductive polymers for absorbing and extinguishing electromagnetic waves, impression graphite (usually graphite), and earth graphite (ordinary carbon) are selected from organic solvents and resins (Resin). It is dispersed in the paints included and is affected by electromagnetic waves such as electronic devices, electric power devices, transformers, electric wires, buildings, ships, aircrafts, etc., or it is included in facilities that generate electromagnetic waves to absorb and extinguish electromagnetic waves to prevent malfunction or damage caused by electromagnetic waves. Electromagnetic shielding paints have been disclosed that provide functionality that eliminates and protects the human body.

However, although graphite was used to compensate for the lack of conductivity of a product invented only by the conductive polymer in Patent No. 2001-0004216, the amount of graphite used was 11-25 parts by weight based on 100 parts by weight of the two kinds of graphite. The amount of the solvent used as the VOC material has increased as the amount of use, and in particular, the color of the developed product is black due to the use of graphite, and there is a problem that the coating should be applied as another paint after painting.

(3) Republic of Korea Patent Application Publication No. 2002-0051363 relates to wallpaper paints, and in particular, loess, wood powder, charcoal powder, adhesives, hard coal, methanol, etc. are mixed at a constant ratio and then coated on the wallpaper to emit far infrared rays of the loess. By circulating the body's blood circulation and metabolism smoothly, by absorbing moisture in the room by wood powder, you can get a comfortable room, and by using charcoal powder, electromagnetic wave blocking, water vein blocking and sterilization effect can be obtained. have.

However, as in the Republic of Korea Patent Publication No. 2002-0068730, the use of charcoal powder, or carbon black, has a drawback that is not suitable for wallpaper with two layers due to the derivation of black color. There is carbon black which is very weak in conductivity with carbon. Carbon black used in the special 2002-0051363 is graphite (carbon black) which is very conductive and has a low electromagnetic wave blocking effect.

(4) In Korean Patent Laid-Open No. 2000-0037039, at least one or more of ITO, silver, nickel, aluminum, and magnesium are mixed with paints of various colors, and when used in the exterior of an electronic product such as a mobile phone, a separate treatment process Electromagnetic shielding color paints are disclosed that can shield electromagnetic waves without the need.

Although ITO and silver used in the patent are excellent in conductivity, they are very expensive, for example, they are expensive to account for about 20% of the total manufacturing cost of the entire manufacturing process of the mobile phone case, and in recent years, mainly in Europe As a result, the VOC released from the manufacture of mobile phone cases has led the industry to come up with countermeasures in preparation for future movements to be regulated.

(5) Korean Patent Laid-Open No. 2001-0073355 relates to a wallpaper that can shield electromagnetic waves, and to improve the conductivity of the wallpaper to shield electromagnetic waves on the wallpaper in order to prevent human body from being exposed to electromagnetic waves from the outside in the room. As a method of increasing conductivity, a conductive material such as a conductive mesh or a mesh made of conductive paint or thin wire is applied to both or one surface of the wallpaper, or paper is coated on both sides of the conductive mesh and the conductivity of the paper itself. In order to increase the height, a method of mixing a metal powder, a thin conductor solid piece, or a small mica piece coated with a conductive paint was used. The electric field in the horizontal direction near the surface of the wallpaper was attenuated by more than 30 dB compared with the absence of an electromagnetic shielding wall. If one end of such an electromagnetic shielding wall is grounded, the shielding effect is improved by 6 to 7 dB. do.

However, when using a conductor network with a very low resistance value, such as Special 2001-0073355, the human body may be exposed to the risk of electric shock, and secondly, the wallpaper may be made of a metallic material, network, or thin wire. When manufacturing, there is a problem that the construction time takes at least 1.5 times more than the existing wallpaper when the construction due to the rigidity of the product.

(6) 1 to 69% by weight of at least one material selected from the group consisting of conductive polymer material, conductive carbon and graphite having a solid content of 1 to 100% by weight, the electromagnetic shielding wallpaper of the Republic of Korea Patent Publication No. 2001-0100836, The coating composition of 30 to 98% by weight of the matrix polymer having a solid content of 1 to 50% by weight, 0 to 59% by weight of the solvent and 1 to 40% by weight of the additives was mixed at a predetermined ratio. At least one of both surfaces is coated and dried and then manufactured.

However, as in the Republic of Korea Patent Application Publication No. 2002-0068730 and the Republic of Korea Patent Application Publication No. 2002-0051363, attention is required in the case of the solvent, and the problem of low economic efficiency due to the high cost of the conductive polymer material, and the color of the developed product due to the use of graphite. There is a noticeable problem.

In addition, a number of microwave shielding adhesives or wallpaper using super medium, charcoal or conductive carbon black, graphite, loess, etc., and mesh or sheet metal made of metal such as copper and aluminum are disclosed.

And electromagnetic shielding technology in a light-emitting device such as a luminaire;

(1) In Korean Patent Laid-Open No. 10-0315396, a transparent conductive film (tin oxide film) is coated on the inside or outside of the glass film forming the surface of a lamp such as an incandescent lamp to provide an external ground terminal, and the outside on the By providing a connection terminal for connecting the ground terminal to the earth ground potential, the external ground terminal of the lamp is connected to the earth ground potential, whereby electromagnetic waves induced in the conductive material layer are grounded through the external earth terminal and the connection terminal. It is a method of removing the electromagnetic waves emitted to the outside of the lamp by spraying the droplets to the material by spraying the fine droplets that have been heated and moved through the ultrasonic nozzle to produce a transparent conductive film (tin oxide film) of semiconductor properties. The optimum temperature for is from 500 ℃ to 700 ℃ depending on the properties of the material. After the thin film is formed, an annealing process of 250 ° C. to 300 ° C. is added in an inert atmosphere to increase the conductivity of the thin film and to prevent material property deterioration.

The technique is a transparent electrically conductive glass with a thin film of tin oxide attached to a glass surface, a glass ornament made in the Nevers region of France in the late 16th to early 19th centuries. However, incandescent lamps are also called light bulbs, and about 10% of the power is light, and the rest is heat. As a result, surface temperature may exceed 300 degreeC. In the case of coating with a conductive tin oxide inside or outside the glass bulb, the metal generally expands under heat and shrinks as the temperature decreases. Therefore, it can be said that the risk of breakage is very high due to the difference in thermal expansion coefficient between metallic tin oxide and insulating glass surface. In addition, the economical efficiency is low due to the expensive and complicated manufacturing process of the tin used in the above process.

(2) In Korean Patent Laid-Open No. 2002-0065955, in forming a window (Door, Window) of a product that generates electromagnetic waves as in various communication equipment or electronic products, the window is formed of a transparent resin system A transparent plate for shielding electromagnetic waves from the electromagnetic wave of the product while preventing the malfunction of the product from the electromagnetic wave of the product by incorporating a conductive net to block electromagnetic waves generated in the product in the formed window Disclosed is a manufacturing method.

However, the disclosed patent is a modified technology of Resin Transfer Molding (RTM), which is expected to be more productive than the RTM process, and also has a disadvantage in that transparency is poor when used as a window, especially a window by an opaque conductive net.

In addition, there are many examples of staining such as mold caused by moist air or moisture on the surface of the constructed wallpaper, which is another object of the present invention. This is the case when a humid atmosphere or moisture becomes a habitat and nutrient of various bacteria, and various bacteria are scattered. In particular, fungi are known to cause asthma and allergies. The prior art and the problems associated with the antibacterial that can protect the human body from various bacteria will be described below.

In the conventional antimicrobial technology, products commercialized by adding organic or inorganic antimicrobial agents to plastics (polyethylene, polypropylene, polyvinychloride, nylon, etc.), paints (epoxy, etc.), ceramics (tiles, tableware, glass) include water bottles, sheets, fibers, and It is commercialized in various fields such as paint. Organic antimicrobials can be expected to have antimicrobial effects in a short time, but they are expensive and require special care when in contact with the human body. Inorganic antimicrobials are less expensive than organics in the short term but can be expected to be human-friendly and long-term. And antimicrobial agents mainly for (-) bacteria are the mainstream. In addition, the wallpaper using the inorganic antimicrobial material has a problem that the construction time takes more than the existing wallpaper when the construction due to the hardness of the product.

The present invention has been made to solve the above problems,

Sodium chloride, a natural material, was used to prepare a water-soluble acrylic resin as a conductive water-soluble acrylic adhesive composition primarily, and secondly, to develop an application for shielding an electric field. In the present invention, the wallpaper was selected as an easily grafted application product, and developed and applied preferentially. Sodium chloride, a natural material used in the present development, is an environmentally friendly and harmless material to humans, and it is another object of the present invention to provide a composition and application product having bactericidal suppression and antifungal properties by the bactericidal power (antibacterial activity) of this material. .

The present invention relates to an antistatic water-soluble acrylic adhesive composition using sodium chloride, which is a natural material of the present invention, and an application thereof for achieving the above object, and have excellent electric field blocking effect in the near field electromagnetic wave, and in the case of far electromagnetic wave, In addition, the shielding effect in the magnetic field improves the electromagnetic environment due to the electromagnetic waves scattered in the space, prevents electrostatic phenomena caused by these electromagnetic waves, and creates dust particles that do not have a charge. It is an object to provide an adhesive composition and its application. The present invention for realizing this is made by including natural sodium chloride in the water-soluble acrylic resin. The antistatic water-soluble acrylic adhesive composition thus prepared and its application product have a high resistance to absorb electromagnetic waves existing in the space and extinguish them by self-resistance heat, so that they have a charge in the electromagnetic waves existing in the space, especially through the removal of the electric field. It acts to neutralize fine dust, and because of its excellent antibacterial activity, it is also effective in preventing asthma and allergic damage caused by fungi, thereby providing a beneficial environment for the human body.

The antistatic water-soluble acrylic adhesive composition using a natural material sodium chloride and a method for producing the application thereof,

First, sodium chloride was dissolved in 100 g of water up to 35.7 g at room temperature and 39.8 g at 100 ° C. to prepare an aqueous sodium chloride solution. 20 to 80% by weight of the aqueous sodium chloride solution thus prepared is mixed with 20 to 80% by weight of a water-soluble acrylic resin, characterized in that made of a conductive polymer.

delete

Below, it looks at a preferred embodiment of the present invention.

EXAMPLE 1 The wallpaper was manufactured with the antistatic water-soluble acrylic adhesive composition which contains 10 weight% of sodium chloride components. The wallpaper consists of two layers, and this product was used in the process of bonding between the two layers.

[Example 2] Since the adhesive composition and the application product prepared as in Example 1 had excellent white transparency, it was possible to produce various colors of products by mixing additives for implementing various colors in a manner of giving fashion sense thereto. Particularly, when the black color is required, the electromagnetic shielding effect is further improved when the conductive carbon black is used together. The pigment amount used at this time was 1-20 weight%.

delete

Looking at the working example of the present invention as described above;

[Example 1] The concept of electromagnetic shielding is

The present antistatic water-soluble acrylic adhesives and applications prepared through the composition and process as described above have high resistance conductivity because the added sodium chloride is present in an ionic state in aqueous solution. And even if water is evaporated and only exists as sodium chloride in the product, the application made with sodium chloride maintains its conductivity due to the nature of containing water. The composition prepared as described above was coated on a tetrahedral wooden box, and then the degree of electromagnetic shielding was measured through a low frequency band meter of TriField and a HOLADAY (USA) EMF / Power Frequency Survey Meter HI-3604 (hereinafter referred to as HI-3604). As a result, it can be seen that there is a significant amount of electromagnetic shielding effect. [Table 1], [Table 2], [Table 3] and [Table 4] are made of tetrahedral crates coated with antistatic water-soluble acrylic adhesive or wallpaper according to the present development on wooden plywood, and fluorescent lamps The result of measuring the electromagnetic wave was installed in the front, and the measurement distance means the distance between the electromagnetic wave source and the measuring device.

In the case of the sheet form manufactured in the form of the existing single-sided sheet, if the ground is not grounded, the product made of the conductive material is more generated due to the nature of integrating electromagnetic waves. However, in the case of coating or papering the tetrahedral wooden box with the adhesive and the application product of the present invention as in the present invention, the concept of the closed circuit, not the open circuit in electrical engineering, is different from the existing scope that the existing conductive material must be grounded unconditionally. It was found experimentally that 's own electromagnetic extinction system works. In addition, the charged, ie electromagnetic components inside the metal sphere physically discharged to the outside due to the nature of the discharge, more specifically in the electromagnetic wave has the property to become zero (Table 1), Table 2, Table 3, and Table 4 show the same.

As shown in [Table 1] and [Table 2], in the case of TriField, similar values were used as the measurement standard compared to the value measured with HI-3604 as the measured value of the electric field was different according to the measurement direction. It was confirmed that electromagnetic waves were removed even when measured in the non-grounded state. When the electric field radiated from the fluorescent lamp of [Table 2] is wallpapered with a normal wallpaper, 70V / m is delivered with a wallpaper made of the present adhesive, and 10V / m is removed, even when measured in the ungrounded state. I could confirm it. However, the floor or wall of the building serves as a means of grounding, so that better measurement results can be expected than observed measurements. [Table 3] is the coating of this development on fluorescent lampshade, the initial untreated lampshade generates a large amount of electromagnetic waves of 200V / m, but 100V / m is reduced even in the ungrounded state with this development, but in this case It was found that the case is reduced to less than 40V / m. Therefore, it may be better to ground, but as shown in the measurements, the result was different from the existing concept of electromagnetic waves even in the ungrounded state. And in the case of adhesive, it is possible to maximize the electromagnetic shielding effect by exerting the effect of grounding with the ground by the grounding property of the building surface when constructing it in the building. In order to do this, only five surfaces are applied, and in practice, better results are obtained when the six-sided surface is coated or coated to the bottom surface, and the larger the area, the better the electromagnetic shielding effect. Therefore, due to the composition of the electromagnetic environment, the charged dust in the space is changed to the non-charged dust has a beneficial effect to prevent the respiratory disorders of the human body.

In Table 4, the data show that it is effective not only in electric field but also in magnetic field. When the LCD window of the mobile phone is not lit or not, the difference between the electric field and the magnetic field is different. When placed in close contact with the wall and measured in a box, it was confirmed that not only the electric field but also the attenuation effect of the magnetic field was exerted.

Working Example 2 In terms of antibacterial properties,

The sodium chloride used exhibited antimicrobial activity against (+) ionic bacteria and (-) ionic bacteria like the previously filed "electromagnetic shielding, antibacterial and biodegradable functional compositions".

And the results of the antimicrobial and antifungal measurement of the added sodium chloride weight are shown in [Table 5] and [Table 6], respectively. In the composition of the present invention, even about 5% by weight of sodium chloride, a composition showing 99.98% of antibacterial activity against antibacterial Escherichia coli and anti-mildew was obtained. The bacterium Bacillus subtilis showed positive antibacterial activity.

Inorganic Antibiotic Addition 5 wt% 10% by weight 20 wt% Antifungal Can't recognize the growth of bacteria Can't recognize the growth of bacteria Can't recognize the growth of bacteria In this experiment, the antimicrobial test showed that the surface area of the specimen was 1 cm 2, and the bacterial solution was measured after shaking culture (150 cycles / min) at 25 ° C. for 24 hours, and the measurement method was Shake Flask method. For Escherichia coli, Escherichia Coli ATCC25922 was used. The antifungal test was ASTM G-21, Test strain Aspergillus niger, Penicillium citrinum, Aureobasidium pullulans, Gliocladium virens, Chaetomium globosum, Medium Potato-Dextrose Agar, Culture temperature 25 ± 2。C, and measurement period was 3 weeks.

delete

As an example of application of the invention, various applications are possible as well as wallpaper. The present invention is applicable to the electromagnetic shielding security device or window glass, lampshade of the computer monitor because of having excellent transparency, and the product containing the sodium chloride aqueous solution used in the present invention, such as decorative containers, in the electromagnetic shielding of several MHz ~ several GHz band By showing the excellent effect, there is an excellent effect on the unnecessary electromagnetic shielding radiated from the control means between various electronic products using wireless instead of wires expected in the future. In addition, when using the grounding terminal system when using as a single-sided sheet and a decorative container, the electromagnetic wave shielding effect of the low frequency band is excellent as well, so that it can be applied to various fields.

In addition, although specific embodiments of the present invention have been described and illustrated above, it is obvious that the present invention may be variously modified and implemented by those skilled in the art.

Such modified embodiments should not be individually understood from the technical spirit or the prospect of the present invention, and such modified embodiments should fall within the appended claims of the present invention.

As described above, the adhesive composition of the present invention and the applied product using the same are transparent and conductive, and make the charged dust component in the space uncharged by exhibiting the electromagnetic shielding effect, and the conventional chemically treated oil or inorganic antimicrobial agent. Unlike the natural material has an excellent antibacterial function and exhibits environmental friendliness and human benefits.

Claims (2)

In preparing a water-soluble acrylic adhesive by mixing an aqueous sodium chloride solution, the aqueous sodium chloride solution is prepared by dissolving sodium chloride in 100 g of water up to 35.7 g at room temperature and up to 39.8 g at 100 ° C. An antistatic water soluble acrylic adhesive composition prepared by mixing 20% by weight to 80% by weight of a water soluble acrylic resin. The method according to claim 1, Wallpaper produced by the adhesive composition.