KR20070035329A - Nano silver metal pipe - Google Patents

Abstract

The present invention relates to a pipe made of a metal material, and more particularly, it occurs in a metal pipe used for transporting liquid products such as chemicals, food, beverages, liquors processed into liquid sieves, or for transferring boilers, heating intakes, water and sewage and air. It is about metal tubing mixed or coated with silver nanoparticles to prevent the growth of microorganisms and viruses present and to remove the biofilm (bacterial membrane) to obtain clean liquid water.

Silver, silver nano, silver, germ, metal, plumbing.

Description

Silver nano metal pipes

1 is a perspective view of a pipe containing silver nano of the present invention.

2 is a mixed block diagram of a pipe containing silver nano of the present invention.

Figure 3 is a block diagram of the wet coating of the pipe containing the silver nano of the present invention.

Figure 4 is a block diagram of the dry coating of the pipe containing the silver nano of the present invention.

Figure 5 is a photograph taken in 60,000 times magnification of the cross section of the pipe containing the silver nano of the present invention.

FIG. 6 is a photograph taken at 80,000 times magnification of a side surface of a pipe containing silver nanoparticles of the present invention.

7 is an enlarged photograph of 50,000 times the surface of the pipe containing the silver nano of the present invention by an electron microscope.

8 is a three-dimensional structural diagram of silver nano for explaining the silver nano of the present invention.

Figure 9 is a photograph of the antimicrobial activity of the strain into which the silver nano of the present invention.

10 is Staphylococcus aureus, pneumococci, bacteria in which the silver nano of the present invention is added.

MRSA (Methicillin-Resistant Staphylococcus Aureus) Bacteria Antimicrobial Test Picture.

* Explanation of symbols for main parts of drawings *

20: pipe body 40: pipe inner diameter

50: piping connection groove 60: piping outer diameter

70: pipe connection member 80: extrusion

100: extruder 120: silver nano

160: Mix 180: Coating

200: deposition, lamination, deposition, thin film, plating, spraying

220: melting 240: melting

260: drying 280: stirring

300: barrel 320: mixed

340: molding 360: softening

380: molding module 400: chamber

420: washing step 440: rinsing step

460: polishing step 480: plating tank

500: initial plating 520: nickel plating

540: gas injection process 560: sterilization process

580: silver nanoplate 600: 1st surface finish

620: secondary surface finish 640: finished

The present invention relates to a pipe having a sterilization and antimicrobial effect as described above in more detail in the body 20 of the metal pipe for transporting the liquid sieve in the production process of the liquid product such as drugs, food and beverage, liquor processed into liquid sieve It is about compounding and mixing silver nano.

Generally, piping is used for heating, water supply, hot water supply, water purification, food and beverage, chemicals, alcoholic beverages, and air transport piping. The piping is divided into metal piping materials, such as copper and stainless steel, and synthetic resin piping. Good hygiene, good curing resistance, resistant to high temperature and high pressure, high resistance to abrasion, and strong strength, so it is suitable for manufacturing hot water heating pipe, water supply, hot water supply pipe, medicine, food and beverage delivery pipe, etc. It is used.

However, metal pipes, which are conventionally used for transporting water such as heating, water supply, hot water, purified water, and various food and beverages, are in contact with liquids and various valves and liquids in the process of transporting water, food, and medicine. Contamination may occur through the deposition of a sieve, and microorganisms harmful to the human body, such as viruses, bacteria, and fungi, may be gradually activated, causing serious hygiene problems.

In addition, in the case of heating piping, a microbial coating is formed inside the piping and the heating water distributor, and the deposition of inorganic substances contained in the heating water occurs around the pipes to form scale and corrosion inside the pipe. The disadvantage is that it inhibits the heat transfer of the pipe, hinders the flow of water and damages the body 20 of the pipe or reduces the efficiency and life of the heating system.

Therefore, there is a strong demand for a method that can reinforce antibacterial or antiseptic power for such pipes, and has been studied for a long time. However, it has strong sterilization or antimicrobial power and is harmless to the human body. It was not easy to find a material with antiseptic or antimicrobial properties that could be applied to pipes for transporting alcoholic beverages, etc.

Silver has long been used in tableware for anti-corruption and sterilization in many parts of the world. Recently, due to the breakthrough in nanotechnology, silver has expanded its applicability, and silver has been attracting attention as a material with strong sterilization and antibacterial properties. With the development of technology, silver can be mixed or coated in nano size to be widely used for the purpose of antibacterial, deodorization, ultraviolet ray and electromagnetic wave blocking, and related research and technology development has been made in recent years. Techniques for compounding and coating on smooth surfaces such as locks, glass, titanium, Teflon and stainless steel are being developed one after another.

For example, when looking at the prior art of sterilizing water using silver coated particles (Patent Publication No. 10-2001-0069645), using a silver nano, characterized in that the filling filter ball coated with nano silver Water supply chamber for washing machines (Patent No. 10-2004-0093958), laundry storage equipment made of fibers containing fine silver powder (Patent No. 10-2004-0093955), for washing machines coated with nano silver Coating the inside and outside of the storage tank of a water supply pipe (Publication No. 10-2004-0093959), a washing machine with a sterile water supply device having a silver plate (Publication Publication No. 10-2004-0009526), a water purifier or a mineral water dispenser Water storage tank of mineral water and water purifier containing nano silver (Public Patent Publication No. 10-2004-0085107 20-2004-0035657 Antibacterial piping using polybutylene silver nanocomposite resin and the inventors patent Patent Application No. 10-2005-0002592 Filed January 11, 2005 Nano silver tubing and insertion devices and the like are disclosed in the prior art.

The conventional prior arts are mostly nano silver technology applied to household goods such as washing machines, water purifiers, etc., and sterilize water supplied using silver electrolysis, coating some parts with silver, or using silver-containing parts. It adds antimicrobial effect, and it is disclosed to mix or coat silver nano to polybutylene or plastic pipe.

In the prior art, while satisfying the functions required in the facility piping system, that is, heat resistance, pressure resistance, durability, hygiene, curing resistance, corrosion resistance and strength, it is difficult to expect a sterilization or antimicrobial effect at the same time, for example, for a washing machine using nano silver. In the case of the water supply chamber, if the water supplied to the washing machine itself can be sterilized while passing through the water supply pipe, a separate sterilization chamber as described above is unnecessary, but the pipe which has been trying to reinforce antibacterial and sterilizing power for a long time The introduction of silver nanotechnology has not been made in earnest in the field.

This is because there are various problems in the application method even in the case of reinforcing antibacterial and bactericidal power by using silver nanotechnology in the piping field. First, coating or blending silver nanotubes in pipes has problems in coating technology and manufacturing cost. In addition, there is a limit in durability for plumbing equipment that requires the same durability as the lifespan of buildings, which makes it unsuitable, and metal pipes such as copper pipe or stainless steel, cast iron pipe, and steel pipe are steadily increasing even in difficult environment. This is because it is superior to the conventional synthetic resin tube in terms of durability, strength and service life.

Accordingly, the inventors of the present invention pay attention to the sterilization and antimicrobial activity of silver and the recent silver nanotechnology, satisfying the hygiene, durability, wear resistance, workability, and the like required for existing pipe materials, and without impairing the physicochemical properties of raw materials. In order to reinforce the sterilization and antimicrobial activity of the pipes, which have been technical problems in the meantime, the present inventors have searched for an efficient method of directly introducing silver nanomaterials into metal pipe materials, thereby leading to the completion of the present invention.

In the manufacture of the metal pipe, the silver nano 120 material is mixed (160) to 0.1 to 20% by weight based on the total weight of the pipe material or the silver nano 120 solution or powder is coated on the surface of the pipe (180). The particle size of the silver nano 120 particles coated and coated by any one of deposition, lamination, deposition, thin film, and plating spraying 200 to a thickness of 0.1 to 50 μm (micro) is 0.1 to 50 nm. Its purpose is to make pipes with antiseptic power,

The present invention propagates and implants scales of microorganisms generated in metal pipes used for transporting liquid products such as chemicals, food and beverages, liquors processed into liquid sieves, and boilers and heating water intake and sewage. In order to impart antibacterial and wear resistance and lubricity to the body 20, the advantages are as follows.

1: Compared to the conventional metal pipes, the silver nano 120 mixed 160 or coated 180 pipe is excellent in antibacterial, sterilization, deodorization, lubricating function and wear resistance, hardening resistance, chemical resistance When used, negative ions and far-infrared rays are beneficial to the human body, which stimulates blood circulation and endocrine activity, and blocks more than 90% of formaldehyde, an environmental hormone that has become a problem recently, and has anti-viral and anti-allergic effect and deodorizing effect. All.

  2: It reacts sensitively according to the pollution level of the surrounding environment

It binds strongly to bacterial cell membranes and destroys the bacterial cell membranes or disrupts the function of the cells, resulting in continuous antiseptic action.

 Recent research has shown that 650 bacteria and viruses can be sterilized, and the reproductive and anti-bacterial functions are excellent for harmful bacteria, fungi, athlete's foot, and allergic bacteria. The nano 120 catalyzes the conversion of oxygen into free radicals, which blocks the sterilization and bacterial growth.

  3: There is an antistatic function. The silver nano 120 has excellent electrical conductivity and plays a big role in preventing static electricity and blocking harmful electromagnetic waves.

  4: The silver nano 120 is very easy to inject the coating 180 and mixing 160 with the material and is fused well with the metal.

  In order to solve this problem, in order to solve this problem, silver nano 120 (NA NO SILVER) powder or silver (Ag) solution may be added to the total weight of a pipe made of a metal material as a raw material of the pipe. 0.1 to 20% by weight of the silver nano (120) to the mixed (160) or extruded through the extruder 100 (80) the molded body 20 of the pipe 20 to the silver nano (120) solution or powder Particle diameters of the silver nano 120 particles injected and coated by the preferred method of any one of deposition, lamination, deposition, thin film, and plating spraying 200 to a thickness of 0.1 to 50 μm (micro) on the surface of the pipe are 0.1 to It is about piping with antibacterial power with 50nm.

The present invention is a silver nano (120) (Nano silver) material having a strong anti-bacterial power (Nano silver) material with a metallic material mixed or coated on the body 20 of the pipe by transporting the liquid body to the nano nano 120 (Nano silver) ) Sterilizes liquid water continuously by keeping in direct contact with materials at all times to sterilize microorganisms or biofilm viruses, and prevents corruption due to debris of liquids. There is this.

Accordingly, the present invention has been drawn to solve the above problems,

Silver nano 120 (NANO SILVER) powder or silver (Ag) solution in the manufacture of the pipe body 20 of the silver nano (120) (NANO SILVER) powder or silver (Ag) solution with excellent sterilization advantages as described above To the total weight of the pipe made of a metal material, which is the raw material of the pipe, the silver nano 120 may be mixed (160) with 0.1 to 20% by weight, or the body 20 of the molded pipe may be made of the silver nano 120 solution or powder. The particle size of the silver nano 120 particles deposited and deposited on the surface of the pipe by a known method of any one of deposition, lamination, deposition, thin film, plating, and spraying 200 to a thickness of 0.1 to 50 μm (micro). The purpose is to manufacture metal pipes with anti-bacterial power, lubricating power, scale anti-frosting, and anion and far-infrared radiation with 0.1 to 50nm.

In order to help the understanding of the present invention will be described in detail the silver and silver nano 120 of the material of the present invention.

  Silver, the main component of silver nano 120, has been recognized as a precious metal of high value from ancient times, and has been the object of extraction. It is not only valued as a currency but also gained attention as an important industrial material in modern industry. Production and proportion in many ways. Silver was mined early in Europe's Mediterranean coast, where silver was produced from the Incas and Aztecs before the discovery of the Americas, and then silver from Peru and Bolivia was introduced into Europe, and the flow of silver was from 1520 to 1800.

It has grown steadily, but has declined since the discovery of large amounts of silver in the early 19th century. Currently, the world's major silver producers are Russia (13.8%), Canada (13.5%), Mexico (13%), Peru (13%), United States (11%), Australia (8%), Poland (6%). The country's silver reserves are 17 million tons, and its reserves are about 9.2 million tons. As of 2002, the amount of silver produced in our country is about 5,000 kg, which is 1.2% of the total domestic demand. It's a very small amount.

Characteristics of silver: The color of silver is gray in the case of elegant gray-white metal or powder, specific gravity is 10-12, Mohs hardness is 2.5-3, and melting (80) point is 960.5 ℃.

In particular, the melting point of silver (80) is very important for temperature compensation of high thermometers, which is the standard of scientific and industrial temperature, and silver is the best conductor of metal, and is used comprehensively for contacts and other electronics. Optically, the reflectance of visible light is 90%, which is one of the most excellent metals such as platinum, and pure silver does not form rust even when left in the air or heated, but it reacts with sulfur and hydrogen to make black emulsified silver. Therefore, the film of the camera, etc. should be particularly careful.

     In addition, the mechanical properties change according to the amount of impurities (O₂) contained in the silver, and the hardness of the high-purity silver obtained by thermal annealing is Brinell hardness HBS (10/500) 25-27, tensile strength 12-16kgf / mm2. The cast material had a tensile strength of up to about 29 kgf / mm 2, a burn rate of 48 to 54%, and a recrystallization temperature of 150 ° C.

    In particular, in the case of pure silver, the processed hardened material is softened by recrystallization at normal room temperature and softened softly. The malleability and flexibility are rich after gold.

     The effect of silver has been used as a tool to check the imbalance of the body that one cannot feel because the gloss or color changes depending on the condition of the body when worn on the body from ancient times. Fatigue or low rhythm) and Dongbobom said that it is effective in the prevention and treatment of mental disorders and gynecological diseases such as epilepsy and game, and it also acted as a herbal medicine powdered silver. The five chapters are comfortable, the mind and body are stable, and the main body writes that it prolongs morale by lightening the body and lengthening the body.

      Also, when the Black Plague prevailed in the Middle Ages, nobility of the black aristocrats and royals, who had many silverware and silver utensils, did not have black plague, which released silver to the extent that it was able to sterilize the Black Plague bacteria, making it relatively safe from infectious diseases. In the place where the royal family and the state guests were served, silver products were used habitually.

In order to help the understanding of the silver nano 120, a brief description of the silver nano 120 (Nano silver) extraction method and features of the present invention are as follows.

The atomic weight of silver is 107.87 amu and the fact that silver (Ag) is bactericidal has been known for a long time. Silver nano 120 was first developed by a biotechnology company, a government-affiliated organization in our country, and was named silver nano 120 as a compound of the brand name Na no-technology and silver. ;

  Silver nano 120 is a field of Na no-technology, which is an advanced antimicrobial agent that uses silver's strong antibacterial and bactericidal function and excellent electrical conductivity mechanism. Silver nano (120) is unlike the traditional antibiotics, bacteria are not resistant to the silver nano 120 has been confirmed to sterilize almost all single cell germs on the ground in a short time.

 Currently, a variety of products based on silver nano120 consisting of powder and solution have been invented and commercialized and produced in real life. This technology, called silver nano120, converts silver to nanometers (1 billion won). It is a small particle size of 1m / min), that is, 0,000000001m. If one gram of silver is aged, ten particles can be produced.

Therefore, silver (Age) in the form of ultra-fine particles aging silver nano (120) is a new concept produced by utilizing the excellent efficacy, such as antibacterial deodorization zone, extending the preservation time of food among the many characteristics of silver.

 Since ancient times, silver has been recognized as a material that not only prevents germs but also disinfects both East and West. Currently, the extraction method of silver nano 120 is used to inject silver (Age 99.9%) into distilled water and generate low current at low temperature. Electrolysis of silver-containing compounds and electrophoresis using the + and-poles of each molecule to collect silver (Age 99.9%) and other physical methods such as liquid reduction, grinding, etc. In order to obtain a stable silver nano (Nano silver) it is often used a lot of the conventional electrolysis method as follows. Looking at the known well-known manufacturing method of the various forms of the silver nano (120) as follows.

The manufacturing method of silver nano 120 is currently being released in a wide variety of ways, and good methods are being developed and developed one after another. Conventional nano powder manufacturing methods can be divided into gas phase manufacturing method, liquid phase manufacturing method and mechanical manufacturing method. Gas condensation condensation and gas phase reduction, and mechanical grinding using mechanical force.

The uniformity of the particle size of the prepared powder is good and can produce particles of high purity, and the advantages and disadvantages of preventing the agglomeration of the particles have the disadvantage that the experimental equipment is expensive.

In addition, the manufacturing method using the liquid phase is capable of producing a uniform powder than the manufacturing method using the gas phase, and also has the advantage of manufacturing the powder at a low device cost, but the tendency of aggregation of the individual particles is very strong and the shape of the particles is somewhat irregular The disadvantage is that.

Next, there is a systematic, manufacturing method, there is a problem in the mixing of impurities generated in the manufacturing process and the disadvantages of aggregating phenomenon is severe, while there is an advantage that can easily mix (160) several components,

In the present invention, the silver nano 120 is not produced according to the manufacturing method of the silver nano 120, and the conventional silver nano 120 produced through the various types of silver nano 120 manufacturing methods described above is applied to the present invention. It is a feature of the present invention to make.

Silver ions are also used in general sterilization concept machines and disinfectants, and all silver products currently used are silver obtained by decomposition, and the addition amount is very small. The sterilization power of silver varies depending on the product, but a maximum of 99% can be obtained.

 The silver nano 120 of the present invention is ultrafine particles of silver having a particle diameter of 0.1 to 50 nm, which directly acts on harmful bacteria, directly dissolves the cell membranes of harmful bacteria, and interferes with the electron transfer system of the harmful bacteria, thereby making it safe. It has an excellent antibacterial and fungicidal range (99.9%). (The virus size is about 10 nm.)

     The main antimicrobial mechanism of silver nano 120 is to dissolve harmful bacteria cell membranes and work with enzymes in the cells to block the metabolic function of nutrients, that is, the influx and discharge of nutrients, and to stop the respiratory function and production of harmful bacteria, thus stopping the growth of harmful bacteria. And destroys regenerating ability to kill harmful bacteria.

     In addition, since the silver nano 120 continuously controls the harmful bacteria by releasing antimicrobial power from the fine particles, the antimicrobial / bacterial function has excellent sustainability.

Therefore, silver nano 120 does not produce resistance and silver nano 120 has a surface reaction to have an effect, and kills 99% of all bacteria, and is particularly effective for food poisoning acting on E. coli or food.

   The smaller the nanoparticles, the better the bactericidal and antimicrobial activity. Based on the experimental data so far, E. coli, Staphylococcus aureus, Salmonella, Vibrio bacillus, Heterogeneous bacteria, Pneumococcus, Typhoid bacillus and the strongest resistant MRSA (methicillin resistant yellow) Up to 99.9% antibacterial and antiseptic.

     In addition, unlike the general chemical antimicrobial agent or chlorine disinfectant, silver nano 120 is an ultrafine particle of pure silver. It is reported that the bacteria can not live in contact with the silver nano 120 for more than 5 minutes.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in describing each of the drawings, the same reference numerals are used to refer to the same components even though they are shown in different drawings.

Brief description of the drawings of the antibacterial pipe of the present invention for achieving the above object as follows.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be briefly described.

1 is a pipe inner diameter 40 of a pipe 20 made of a raw material of a conventional metal generally used in a perspective view showing a silver nano 120 pipe of the present invention.

As shown in a perspective view of a pipe for transferring the liquid and the air consisting of the pipe connection groove 50, the pipe outer diameter 60 and the pipe connection member 70,

Figure 2 is a block diagram of the process of the mixing 160 of the pipe containing the silver nano 120 of the present invention by injecting a metal raw material of the pipe material into the container 300 to heat the melting (240) or melting (220) ) And silver nano 120 (Nano silver) powder or silver nano (120) solution of diluting the powder was added to the stirring 280, and then added to the molding module 380 after the molding (340) after the cooling process It is completed through the polishing process 460 through (640) to the total weight of the body 20 of the pipe made of a metal material of silver nano 120 (Nano silver) powder or silver nano diluted powder (120) The size of the silver nano 120 particles introduced into the pipe at 0.1 to 20% by weight of the solution relates to a pipe having a particle diameter of 0.1 to 50 nm, and the manufacturing method of the pipe of the present invention is a known conventional pipe. Will follow the manufacturing process.

3 is a block diagram of the wet coating of the pipe containing the silver nano of the present invention, the silver nano 120 powder of the present invention or the silver nano 120 solution diluted with the powder is A block diagram of the coating 180 process by any one of deposition, deposition, lamination, thin film, plating, and spraying 200 in a thickness of 0.1 to 50 μm (micro) on the surface of the pipe will be described as follows.

The present invention follows the conventional coating 180 method and the electric coating 180 will be described as an exemplary embodiment because there are many types and methods of the coating 180 and cannot list them all.

 The coating 180 is generally divided into a deposition thin film coating 180, which is an electrical coating 180, and a lamination and deposition coating 180, which is an electroless coating 180, and silver plating requires a solution containing silver ions. And gold plating requires a solution containing gold nano ions. In order to coat 180 the exterior of the completed pipe (640), a wet plating method of electroplating silver nano120 or a dry plating method using plasma Are all available,

 Since there are many types and methods of the coating 180, and all of them may not be listed, a description will be given of wet electroplating as an exemplary embodiment.

 When an electrode is placed in a solution containing metal ions and a current is passed through it, metal ions are discharged from the cathode and precipitated. A thin film of metal is formed on the surface of the article placed on the cathode.

The purpose of the coating 180 is to beautifully finish the appearance of the article, to increase corrosion resistance, to resist wear and corrosion, and to obtain other necessary surface properties. To reduce the pain of the patient during sterilization and insertion of the pipe.

 The general sequence of the electroplating of the present invention is the plating of nickel, which is a pre-plating process so that the metal plating of the pipe made of metal is first coated with copper (500) and the second silver nano120 (180) coating is well coated (520). This process can be omitted if necessary, and the last step is to coat the silver nano120 (180).

 The silver nano 120 is used as a cathode, and the metal to be electrodeposited is used as an anode, and the silver nano 120 is immersed in an electrolyte solution containing nano silver ions to be electrodeposited. Will stick to the surface of the.

Looking at the process of coating the 180 to the pipe 160 (160), after the washing process 420 and rinsing process (440) to shake off the impurities in the body 20 of the completed pipe 640 abrasion (麻布) After the furnace polishing process (460) and washed again with clean water (洗滌) to immerse in the plating solution.

In the plating tank 480, the pipes are housed in a container that houses the pipes to be coated with silver nano 120 (Nano silver) and connected with the pipes on the positive side and silver nano on the pole side.

Connect the plate 580 and inject a silver nano 120 solution containing silver nano 120 ions and apply DC electricity to the + and-poles. The coating 180 becomes a coating 180 and the coated nano silver (120) (Nano silver) pipe is passed through a washing process (420) and drying (260) process (260) and then completed by drying (260) ( 640).

As described above, the object to be coated 180 is attached to the negative electrode of the electrode (the pipe is attached, and the positive electrode and the negative ion of the silver are dropped by attaching the silver nano (1 plate 580) to the positive electrode, where the electron goes to the positive pole of the pipe) The aqueous solution contains silver nano (120) ions-When electrons come to the poles, the silver nano (120) (Nano silver) ions in the aqueous solution will stick around the pipe. (Nano silver) will be the wet coating (180).

 The thickness of the coating 180 of the silver nano 120 (Nano silver) wet coating 180 is coated with a thickness of 0.1 μm to 50 μm (micrometer) and the total weight of the pipe is 0.1 to 20. The particle size of the silver nano 120 is added in a weight% to allow the coating 180 to have a particle diameter of 0.1 to 50 nm.

In addition, the embodiment of the silver nano 120 coating 180 is a feature of the present invention because it follows the conventional coating 180 method and used the coating 180 material as the aged silver nano (120) material It is.

4 is a block diagram of the dry coating of the pipe containing the silver nano of the present invention,

Looking at the sputtering, deposition, thin film of the plasma coating method 180 of the pipe of the present invention dry plating are as follows.

Plasma is a gaseous state that is separated into electrons with positive charges and positively charged ions at high temperatures, and has a high degree of charge separation but is neutral because of the same number of positive and positive charges.

 Since the long-acting Coulomb force acts between charges, it is characterized by the collective action of the whole moving under the influence of the distant state rather than the local state of the short distance. In 1928, I. Langmuer, USA, first applied the concept of plasma to ionized gases produced during electrical discharges.

  Plasma is derived from the Greek words πλσμα, -ατos, τ, and its original meaning is that it is built and assembled, and as the characteristics of group behavior suggest, it actually deals with plasma. There is a view that Plasma itself is usually behaving arbitrarily rather than easily controlled from the outside, and that the original name is wrong.So, Plasma is the fourth to be followed by solid, liquid, and gas (three states of matter). It is called material state.

As the temperature gradually increases, almost all objects change from solid to liquid and gaseous state, and at tens of thousands of degrees Celsius, the gas is separated into electrons and nuclei and becomes plasma.

Each object that makes up the plasma is electric, so it is very different from the neutral gas, has a high electrical conductivity, and the current is limited to the surface like a metal conductor. When applied, it is easily affected by the force as a charge, but as the charge density increases, the group movement differs from the individual movement, and the self-closing required by nuclear fusion means that the charge follows the magnetic field line. It is used to confine the Plasma to it by properly deforming the magnetic force line and confining it to a place in space.

 In the past, plasma research has been conducted in geophysics and astrophysics related to plasma around the earth and celestial bodies, but recently, the development of electromagnetic fluid dynamics (MHD) using the electrical properties of plasma, ion engines of space travel rockets, Research is underway for nuclear fusion research, and it has been a long time since the Department of Plasma was established in the science and engineering fields of Korean universities.

 As such, the high temperature and active chemical properties of plasma provide extreme environments that are difficult to obtain by conventional methods, and thus are used to give new physical and chemical properties different from the body 20 by changing the properties of the synthesis of new materials and the surface of metals or polymers. Can be

Diamond, for example, is an important material not only for jewelry but also for industry because of its high hardness, thermal conductivity, refractive index, and large band gap. Artificial synthesis of diamond was developed by GE company in USA in the 1950s. A high temperature, high pressure method has been used, but in the early 80's it was found in the Soviet Union that diamonds could be obtained in a thin film form from methane gas plasma at low pressures, and thus applied to semiconductor devices, tool coatings, optical component coatings and medical device coatings. The field is actively developing.

In addition, it can be made by a dry method through a wear-resistant coating of a tool, a decorative coating, a reactive ion plating or a sputtering method used as a diffusion barrier at a contact point in the manufacture of a semiconductor device.

In addition, if the surface of the polymer is treated with nitrogen or oxygen plasma, it can give hydrophilicity or hydrophobicity to the surface of the polymer, or it can improve antistatic, dichroic, deep color, etc. When contacted with a plasma and biased, a nitride or carburized layer is formed on the surface to improve the hardness, wear resistance, and corrosion resistance of the metal.

Some of the effects that can be obtained by the surface coating 180 and the reforming technique using plasma can be obtained by the conventional wet plating or coating 180 method. However, in consideration of environmental pollution, dryness using plasma can be achieved. The method has many advantages, and the application of thermal plasma enables plasma welding, cutting, processing of plasma materials and thermal spraying, and melting high-melting powder into plasma to solid surface. Coating 180 on (coating) is to significantly increase the heat resistance, corrosion resistance, wear resistance and the like.

 In addition, ultra-fine particles can be manufactured and the particles synthesized using high temperature and high activity of thermal plasma are quenched and synthesized into ultra-fine particles to deposit plasma chemically or physically and to produce a functional film using plasma. The high temperature, high activity of the thermal plasma allows the waste to be decomposed and vitrified.

As such, the plasma coating 180 turns the vacuum chamber 400 into a vacuum, injects argon and other inert gas, and then causes electrical discharge, thereby ionizing the gases introduced into the chamber 400. ) The process of colliding with the target (silver nano plate (target)) and the silver nano 120 atoms stick out in the gaseous state and coating 180 on the plated body (piping). It can be controlled.

Next, a brief description of the coating (180) process of the pipe using the plasma of the present invention (Plasma) as follows.

 In order to wash the foreign substances on the surface of the completed pipe 640, the pipe is put into the washing tub, the cleaning liquid is injected, and the washing process is used to wash the impurities in the manufacturing process inside or outside the metal ash pipe using the washer (420). After passing through the rinsing process (460) and passing through the drying (260) in the drying (260) to evaporate the water, the pipe is attached to the holder (not shown) in the state 400 is put into the chamber 400 under vacuum After the sterilization process 560 on the outside of the pipe with a plasma, the silver nano 120 surface processing is performed.

Next, after the plasma sterilization process (580) and the silver nano (120) primary surface processing (600), the surface adhesion of the pipe coated with silver nano (120) (180) and the strength of the pipe were improved. Plasma secondary surface finish (620) and reinforcement treatments are performed to increase.

Next, in the plasma coating 180 of the silver nano120 finally by the vacuum macnetron stuffing plasma coating 180 method, the plasma plating coating 180 having a thickness of 0.1 μm to 50 μm (micrometer) is preferable. Finished by coating (180) with plasma to the thickness (640) or mixing the silver nano120 (120) to the metal material of the pipe at 0.1 to 20% by weight relative to the total weight of the pipe (160) or the coating 180 may be deposited on the surface of the pipe by a known method of any one of the deposition, lamination, deposition, thin film, plating, spraying (200) to a thickness of 0.1 to 50㎛ (micro) thickness I will.

As a result, the mixture 160 or 180 coated with silver nano 120 was completed (640) and can be used hygienically and effectively.

The following is a picture taken by the electron microscope of the cross-section, side and surface of the silver nano 120 of the present invention, respectively for the purpose of understanding of the present invention shown in the drawings in the drawings, Figure 5 contains the silver nano of the present invention The cross section of the pipe was taken 60,000 times magnified with an electron microscope.

FIG. 6 is a photograph taken at 80,000 times magnification of a side surface of a pipe containing silver nanoparticles of the present invention.

7 is an enlarged photograph of 50,000 times the surface of the pipe containing the silver nano of the present invention by an electron microscope.

8 is a three-dimensional structural diagram of silver nano for explaining the silver nano of the present invention.

Figure 9 is a photograph of the antimicrobial activity of the strain into which the silver nano of the present invention.

10 is Staphylococcus aureus, pneumococci, bacteria in which the silver nano of the present invention is added.

MRSA (Methicillin-Resistant Staphylococcus Aureus) Bacteria Antimicrobial Test Picture.

The above has been described in detail with respect to the overall manufacturing process and configuration of the pipe of the present invention. For the sterilization of the pipe of the present invention, silver nano 120 is extremely preferred, and the amount of the mixture 160 is in the pipe 20 made of metal. 0.1 to 20% by weight, respectively, is preferred.

 It is because the antibacterial effect is not sufficiently exhibited at 0.1 wt% or less, and at 20 wt% or more, the price increase and viscosity are too large, the unit price is increased, and the strength is lowered, making it difficult to manufacture the pipe of the present invention.

As described above, the silver nano 120 material having strong antimicrobial sterilization and lubricating action may be mixed (160) and coated (180) with any one of the preferred weight percentages from 0.1 to 20% by weight of the raw material of the pipe 20. When coating thickness is coated with a thickness of 0.1 to 50㎛ on the surface of the body 20 of the pipe to prevent the growth of mold or virus bacteria breeding in the pipe more fundamentally can be transferred to a clean liquid body.

Example 1

In order to test this, the nano silver manufacturer which produces silver ions stably with high purity is a pure nano silver colloidal solution (20PPM) obtained by purchasing a product of Coco Silver and decomposing the silver bar with D / C current. Solution) and put 30L of nano silver solution into sterilized tank and used for heating for 10 years with high standard of bacteria. Purchase 5 pipes of stainless steel material 12mm long and 10cm long and impregnate the silver nano silver solution for 60 minutes to deposit silver ions, and then dry (260) for 60 minutes in the drying machine (260), before and after the silver solution treatment. The average values obtained by measuring the number of bacteria, pneumococci, bacteria, and methicillin-resistant Staphylococcus aureus (MRSA) bacteria are shown in the table below. The present invention has been briefly shown, and the present invention has been completed (640), confirming that it is sufficiently applicable to the applicant's expected results and industrially.

The present invention is a mixture of the silver nano 120 (Nano silver) 160 in the pipe 20 or deposited, deposited, laminated, thin film, plating, to the outside of the pipe body 20 to a thickness of 0.1 to 50㎛ (micro) Injection 200 is a feature of the present invention.

The terms or words used in this specification and claims are not to be construed as limiting in their usual or dictionary meanings, and the inventors may appropriately define the concept of terms in order to best explain their invention in the best way possible. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiments of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

As described above, according to the present invention, it is possible to obtain a silver nano piping material composition reinforced with antibacterial and bactericidal properties that are harmless to the human body, without impairing the physicochemical properties required as the metal piping material. Pipes of metal materials, in particular, hot water heating, water supply, hot water supply, purified water pipes, food and beverage, antibacterial pipes, antibacterial pipe fittings, or antimicrobial distributors used for air or liquid transfer such as alcohol can be obtained.

According to a preferred embodiment of the present invention, the silver nano of the present invention is more excellent antibacterial and bactericidal power and high process efficiency to obtain economic added value, from this hygiene, durability, hardening resistance, wear resistance, hygiene, corrosion resistance and lifetime It is possible to obtain a good antibacterial metal pipe with excellent antibacterial properties.

As described above, the present invention relates to a pipe in which a silver nano120 is mixed or coated in which a body 20 of a pipe made of a metal material has an antiseptic effect;

Molded extrusion (80) by mixing or coating the silver nano 120 (Nano silver) powder or solution having a number of advantages preferably between 0.01 to 20% by weight of the silver nano 120 material relative to the total weight of the pipe material. Will be done.

As a result, liquid and air are always in direct contact with the silver nano 120 in a water pipe or an air pipe to continuously sterilize water, food, beverage, alcohol, drinking water, laboratory water, industrial water, etc. It is an object of the present invention to supply clean liquid and air by sterilizing and preventing odor removal and decay of air in the pipe to prevent secondary contamination of water and air.

Those skilled in the art to which the present invention pertains have the spirit of the present invention described in the utility model claims below.

Various changes and modifications of the invention can be made without departing from the scope and scope of the invention.

It will be appreciated that modifications are possible.

The table below shows Staphylococcus aureus, Pneumococcal, Bacteria, MRSA (Methicillin-Resistant Staphylococcus aureus)

Cocci) The silver nano (120) at 30% in the bacterium 60 minutes after the bacterium is shown as an example showing the killing of the silver nano (120) was found to have excellent sterilizing power.

test subject unit Number of strains  20% nano addition (after 60 minutes) Staphylococcus aureus CFU / mL 3.4 X 10 ³ 0 Pneumonia group CFU / mL 3.1 X 10 ³ 0 MRSA (Methicillin Resistant Staphylococcus Aureus) CFU / mL 1.3 X 10 ² 0 bacteria CFU / mL 3.4 X 10 ² 0

  (This test report is the analysis data of Korea Testing Institute)

Claims (3)

  In the piping for conveying the liquid body and air which consist of the piping inner diameter 40 which consists of a metal raw material raw material, the piping connection groove 50, the piping outer diameter 60, and the piping connection member 70, the conventional silver nano manufacturing method Silver nano 120 powder or solution consisting of 0.1 to 20% by weight relative to the total weight of the pipe 20 is mixed 160 to the body 20 of the pipe 20 through the extruder 100 Pipes containing silver nanos, characterized by having an extruded (80) or shaped (340) configuration. The method of claim 1, The silver nano 120 powder or silver nano solution diluted therefrom is dry to a surface of the pipe outer diameter 40 and the pipe inner diameter 60 of the metal pipe 20 body 20 to a thickness of 0.1 to 50 μm (micro). Or silver nano-coated by the method of any one of deposition, lamination, thin film, deposition, plating, and spraying (200) including a wet coating. The method according to claim 1 or 2, The size of the fine particles of the silver nano 120 injected into the body 20 of the pipe 20 is a pipe containing silver nano, characterized in that having a particle size of 0.1 to 50nm.

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