WO2015194850A1 - 은 코팅 구리 나노 와이어 및 이의 제조 방법 - Google Patents
은 코팅 구리 나노 와이어 및 이의 제조 방법 Download PDFInfo
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- WO2015194850A1 WO2015194850A1 PCT/KR2015/006133 KR2015006133W WO2015194850A1 WO 2015194850 A1 WO2015194850 A1 WO 2015194850A1 KR 2015006133 W KR2015006133 W KR 2015006133W WO 2015194850 A1 WO2015194850 A1 WO 2015194850A1
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- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/026—Alloys based on copper
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- B22F1/05—Metallic powder characterised by the size or surface area of the particles
- B22F1/054—Nanosized particles
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- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
- B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
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- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
- B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
- B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/32—Radiation-absorbing paints
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/61—Additives non-macromolecular inorganic
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- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/102—Metallic powder coated with organic material
Definitions
- the present invention relates to silver coated copper nanowires and a method for preparing the same, and more particularly, piperazine (C 4 H 10 N 2 ) and / or hexamethylenediamine (C 6 H 16 ), which is a new copper capping agent.
- piperazine C 4 H 10 N 2
- C 6 H 16 hexamethylenediamine
- the method of manufacturing silver-coated copper nanowires comprising the step of coating with silver through a chemical plating method to prevent oxidation of the copper nanowires (N 2 ) And silver coated copper nanowires produced by such a method.
- Nanowires are nanometers with diameters of several hundred nanometers and have lengths of hundreds of nanometers to hundreds of micrometers. They are easy to artificially manipulate and are attracting much attention as core materials for the manufacture of next-generation nanodevices. Recently, due to the characteristics of conductivity and transparency, metal nanowires such as copper, silver, and nickel are useful as a substitute for indium tin oxide (ITO), conductive polymer, carbon nanotube, and graphene, which are conventional conductive materials. It is used.
- ITO indium tin oxide
- copper nanowires have high conductivity, flexibility, transparency, and low cost, and are emerging as a substitute material for indium tin oxide (ITO).
- ITO indium tin oxide
- copper nanowires can be used for a wide variety of applications, including low emissivity windows, touch-sensitive control panels, solar cells, and electromagnetic shielding materials because of their ability to be transparent conductors.
- Korean Patent Publication No. 1346061 discloses a method for producing copper nanowires by a polyol process using ethylene glycol (EG, Ethylene Glycol) and polyvinyl pyrrolidone (PVP).
- EG ethylene glycol
- PVP polyvinyl pyrrolidone
- the present inventors have made diligent efforts to solve the above problems, and as a result, by chemically synthesizing copper nanowires using a new copper capping agent, and coating the surface with silver through chemical plating to prevent oxidation, Compared to the copper nanowires, it was confirmed that the copper nanowires having high resistance to oxidation can be manufactured to have high economic efficiency and productivity, and thus, the present invention has been completed.
- An object of the present invention is to provide a new method capable of producing silver coated copper nanowires having high resistance to oxidation and having high economy and productivity, and a silver coated copper nanowire produced by such a method.
- Figure 1 shows a scanning electron microscope (SEM) photograph of the copper nanowires prepared in Example 1.
- FIG. 2 shows a scanning electron microscope-energy dispersive spectrometer (SEM-EDS) photograph and content analysis of the copper nanowires prepared in Example 1.
- SEM-EDS scanning electron microscope-energy dispersive spectrometer
- FIG. 3 shows a scanning electron microscope (SEM) photograph of the silver-coated copper nanowires prepared in Example 2.
- FIG. 4 shows a scanning electron microscope-energy dispersion spectroscopy (SEM-EDS) photograph and content analysis of silver-coated copper nanowires prepared through Example 2.
- SEM-EDS scanning electron microscope-energy dispersion spectroscopy
- FIG. 5 shows a scanning electron microscope (SEM) photograph of the copper nanowires prepared in Example 3.
- FIG. 6 shows a scanning electron microscope-energy dispersion spectrometer (SEM-EDS) photograph and content analysis of copper nanowires prepared through Example 3.
- SEM-EDS scanning electron microscope-energy dispersion spectrometer
- FIG. 7 shows an X-ray diffraction (XRD) pattern of copper nanowires prepared through Example 3.
- XRD X-ray diffraction
- FIG. 8 shows a scanning electron microscope (SEM) photograph of the silver-coated copper nanowires prepared in Example 4.
- FIG. 9 shows a scanning electron microscope-energy dispersive spectroscopy (SEM-EDS) photograph and content analysis of silver coated copper nanowires prepared through Example 4.
- SEM-EDS scanning electron microscope-energy dispersive spectroscopy
- FIG. 10 shows an X-ray diffraction (XRD) pattern of silver coated copper nanowires prepared through Example 4.
- XRD X-ray diffraction
- FIG. 11 illustrates a change in sheet resistance when the silver-coated copper nanowires prepared in Example 2 and the copper nanowires prepared in Example 1 were left in air for two days. (a) shows Example 2 and (b) shows sheet resistance of Example 1. FIG.
- FIG. 12 shows thermogravimetric analysis of silver coated copper nanowires prepared in Example 2 and copper nanowires prepared in Example 1.
- FIG. 13 shows a scanning electron microscope (SEM) photograph of a copper nanowire manufactured through Comparative Example 1.
- FIG. 14 shows a scanning electron microscope (SEM) photograph of the copper nanowires prepared through Comparative Example 2.
- copper nanowires were prepared using piperazine and / or hexamethylenediamine as a capping agent, and then silver was coated by a chemical method to prepare silver coated copper nanowires having excellent physical properties.
- step (d) forming a silver coating on the copper nanowires dried in step (c).
- the sodium hydroxide in the step (a) is preferably added to have a concentration of 2.5 to 25M (mole / L).
- the sodium hydroxide serves to maintain the alkaline solution of the copper ions reduced to copper.
- concentration of sodium hydroxide is 2.5M or less, the solution does not maintain alkalinity, and thus the reduction reaction of copper ions does not occur properly.
- sodium hydroxide and copper react to form nanowires as desired.
- the copper compound is at least one compound selected from copper nitrate, copper sulfate, copper sulfite, copper acetate, copper chloride, copper bromide, copper iodide, copper phosphate or copper carbonate, preferably copper knit It may be characterized by the rate, but is not limited thereto.
- the copper compound supplies copper ions to provide the copper needed for the copper nanowires to grow.
- the copper compound is preferably added to have a concentration of 0.004 to 0.5M on a copper ion basis. If the copper ion concentration is less than 0.004M, the copper nanowires may not be properly formed, but rather, the copper nanoparticles may be formed. At 0.5M or more, the copper ion is excessively present in the solution, so that the reaction with the reducing agent does not occur completely.
- the 3 piperazine (C 4 H 10 N 2 ) and / or hexamethylenediamine (C 6 H 16 N 2 ) performs the function of a copper capping agent (capping agent).
- a copper capping agent capping agent
- the copper capping agent binds to the copper nanostructures, allowing the copper to grow in the longitudinal direction and take the form of nanowires. It is preferable to use piperazine (C 4 H 10 N 2 ) and / or hexamethylenediamine (C 6 H 16 N 2 ) as the copper capping agent in the present invention.
- the structures of piperazine (C 4 H 10 N 2 ) [Formula 1] and hexamethylenediamine (C 6 H 16 N 2 ) [Formula 2] are as follows.
- the (3) piperazine and / or hexamethylenediamine preferably has a concentration of 0.008 to 2.0M by adding the molar concentration of the two materials.
- concentration of copper capping agent piperazine or hexamethylenediamine is 0.008M or less, not only copper nanowires but also copper disk-shaped structures may be formed, and in the case of 2.0M or more, copper may be formed in a disk-shaped form. have.
- the stirring in the step (a) is carried out so that all of the substances added to the aqueous solution can be dissolved well, it can be carried out using a conventional stirrer.
- the stirring speed is 200 to 400 rpm, the stirring time is preferably 5 to 30 minutes, but is not limited thereto.
- the reducing agent of step (b) is hydrazine, ascorbic acid, L (+)-ascorbic acid, iso ascorbic acid, ascorbic acid derivatives, oxalic acid, formic acid, phosphite, phosphoric acid, sulfite or sodium borohydride
- hydrazine ascorbic acid
- L (+)-ascorbic acid iso ascorbic acid
- ascorbic acid derivatives oxalic acid
- formic acid phosphite
- phosphoric acid sulfite or sodium borohydride
- the reducing agent of step (b) has a concentration of 0.01 to 1.0M, the addition rate is preferably 0.1 to 5ml / min. If the reducing agent concentration is 0.01M or less or 1.0M or more, or if the addition rate of the reducing agent is 0.1ml / min or less or 5ml / min or more, there is a risk of forming copper nanoparticles in the form of copper nanowires.
- Step (b) is to reduce the copper ions by stirring for 30 minutes to 2 hours, preferably 1 hour after the addition of the reducing agent.
- step (b) is preferably carried out at 40 to 100 °C. If the reaction temperature at the time of reduction is 40 degrees C or less or 100 degrees C or more, copper reduction reaction will generate
- step (c) is a previous step for the silver coating after removing impurities on the surface of the copper nanowires prepared in step (b),
- the concentration of the aqueous solution of hydrazine is preferably 0.5 to 2 vol%.
- step (d) is a step of forming a silver coating (layer) to improve the physical properties of the manufactured copper nanowires
- the copper copper nanowires washed and dried in the step (c) are dispersed in an aqueous solution, and the ammonia-silver complex solution including the silver capping agent is mixed and stirred under certain conditions.
- the ammonia-silver complex solution may be prepared by adding ammonia water to a silver nitrate solution to form an ammonia-silver complex solution, and adding and mixing one or more selected one or more silver capping agents thereto.
- the silver capping agent in order for the silver capping agent to be uniformly coated with silver on the copper nanowires, it is preferable to add a silver capping agent having an amine group.
- Silver capping agents that may be used in the present invention include piperazine, hexamethylenediamine, ethylenediamine, triethylenediamine, propane-1,3-diamine, butane-1,4-diamine, pentane-1,5-diamine, N, N, N ', N'-tetramethylethylenediamine, N, N-diethylethylenediamine, N, N, N'-trimethyl-1,3-propanediamine, N, N-dimethyl-N'-ethylethylenediamine , N-propyl-1,3-propanediamine, N2, N2-dimethyl-1,2-butanediamine, N-butylethylenediamine, N-isopropyl-1,3-propanediamine, polyethylglycol diamine, 1,3-cyclohexanediamine, N-methyl-N'-cyclopropyl ethylenediamine, N, N'-dimethylethylenediamine, N, -
- the copper nanowires In order to disperse the copper nanowires in an aqueous solution, it is preferable to disperse the copper nanowires by adding 0.1 parts by weight to 0.3 parts by weight with respect to 100 parts by weight of an aqueous solution, followed by sonication.
- the ultrasonic treatment may use a method commonly applied in the art, it is preferable to process for 5 to 30 minutes at a wavelength of 20 to 60KHz, but is not limited thereto.
- Copper nano wire silver coating layer is formed, the principle of the silver coating is based on the chemical plating method (Chemical Plating Method).
- ammonia-silver complex solution is produced by adding ammonia water to the silver nitrate solution.
- the chemical formula of this reaction can be expressed as [Formula 2], as in [3] of [Formula 2], where [Ag (NH 3) 2] +, which is an ammonia-silver complex, is formed.
- Silver atoms are coated on the copper nanowires by the chemical plating principle in which the [Ag (NH 3 ) 2 ] + complex formed in 3) of [Formula 2] is reduced by Ag ions by electrons from the copper of the copper nanowires.
- This chemical reaction formula is shown in [Equation 3].
- the concentration of silver nitrate in the ammonia-silver complex solution may be characterized in that the concentration of 0.006 to 0.06M, the concentration of ammonia water is 0.01 to 0.3M. Complexes are less likely to form when the concentration of silver nitrate is less than or equal to 0.006 M or greater than or equal to 0.06 M, or when the concentration of ammonia water is less than or equal to 0.01 M or greater than or equal to 0.3 M.
- the addition concentration of the silver capping agent is preferably 0.01 to 1M.
- silver capping agent is added below 0.01M or above 1M, silver is not uniformly coated on the copper nanowires.
- the present invention in another aspect relates to silver coated copper nanowires produced by the process of the invention.
- Silver-coated copper nanowires prepared by the manufacturing method according to the present invention is preferably 5 to 10 parts in length, 200 to 300 nm in diameter, silver is 5 to 90 parts by weight based on 100 parts by weight of the total nanowires, but is not limited thereto. It doesn't work.
- the silver-coated copper nanowires according to the present invention have characteristics of superior oxidation stability and thermal stability, as compared with conventional copper nanowires, for example, copper nanowires not coated with silver.
- the silver-coated copper nanowires the content of silver may be characterized in that 2 to 60 parts by weight based on 100 parts by weight of the entire wire. If the content of silver is less than 2 parts by weight of the total content, the silver coating is not entirely coated on the copper nanowires, and when it is 60 parts by weight or more, there is silver which is not coated on the copper nanowires, thereby producing silver particles separate from the copper nanowires. There is a possibility.
- the present invention in another aspect, relates to an electromagnetic shielding paste or highly conductive paste comprising silver coated copper nanowires produced by the method according to the invention. Since the silver-coated copper nanowires according to the present invention can maintain high electrical conductivity, they can be manufactured in the form of electromagnetic shielding paste and high conductivity paste requiring high electrical conductivity. In the case of preparing the paste, the silver-coated copper nanowires of the present invention, an organic binder, and an adhesive may be further included.
- Form and structure measurement The form and structure of the copper nanowires were measured using a scanning electron microscope (SEM; FEI, SIRION).
- the component measurement of copper nanowires is performed by an energy dispersive spectrometer (SEM-EDS; FEI, SIRION) mounted on a scanning electron microscope (SEM; FEI, SIRION), and an X-ray diffractometer (XRD; RIGAKU, D / MAX-2500).
- SEM-EDS energy dispersive spectrometer
- FEI scanning electron microscope
- XRD X-ray diffractometer
- thermogravimetric analyzer TGA; NETZSCH, TG 209 F3
- the sheet resistance was measured by a four-point sheet resistance measuring instrument (Loresta-GP, MCP-T610, MITSUBISHI CHEMICAL ANALYTECH).
- the reactor was kept at 70 ° C., and when the reaction was completed, the temperature was slowly cooled to room temperature, washed with 2 L of hydrazine 1 vol% washing solution, and then dried at 25 ° C. in a vacuum oven (JEIO Tech, OV-12) for 24 hours. I was.
- SEM scanning electron microscope
- the components and contents of the copper nanowires were analyzed by a scanning electron microscope-energy dispersion spectrometer (SEM-EDS).
- hexamethylenediamine C 6 H 16 N 2 , Sigma Aldrich
- 62.25 ml 0.268 M
- hexamethylenediamine C 6 H 16 N 2 , Sigma Aldrich
- a syringe pump syringe pump
- Example 4 silver coating of copper nanowires with hexamethylenediamine (C 6 H 16 N 2 )
- Example 3 The copper nanowires prepared in Example 3 were used for silver coating, except that 2.07 ml (0.075 M) of hexamethylenediamine (Sigma Aldrich) and 0.3 g of silver nitrate (AgNO 3 , Juntec) were used as silver capping agents. Silver-coated copper nanowires were prepared in the same manner as in Example 2.
- FIG. 8 it was confirmed that a silver coating was formed on the surface of the copper nanowires using a scanning electron microscope (SEM).
- SEM scanning electron microscope
- FIG. 9 the analysis results of the scanning electron microscope-energy dispersion spectrometer (SEM-EDS) of the prepared silver-coated copper nanowires were confirmed.
- Example 2 200 ml of water (ultra pure water) and 0.5 g of the silver-coated copper nanowires prepared in Example 2 were added to a 500 ml Erlenmeyer flask, which was placed in an ultrasonic cleaner (Youngjin corporation Bath sonicator, SK7210HP) and treated at 53 kPa for 10 minutes.
- a membrane filter (ANODISCTM membrane filter, WHATMAN) having a pore size of 0.2 ⁇ m and a diameter of 47 mm was mounted on a vacuum filtering device (WHEATON, Vacuum Filtering Aparatus), and then passed through a vacuum filtering device to prepare a film.
- thermogravimetric analysis graph is shown in FIG. 11 (a).
- Example 1 Except for using the copper nanowires prepared in Example 1 to prepare a film in the same manner as in Example 5 to measure the sheet resistance.
- the sheet resistance with time when it is left in air is shown to FIG. 11 (b), and the weight change when temperature increases is shown to FIG. 12 (b).
- FIG. 11 compares sheet resistance (a) of the silver-coated copper nanowires prepared in Example 2 with sheet resistance (b) of the uncoated copper nanowires prepared in Example 1.
- the copper nanowires of Example 1 which were not coated, started to increase in weight at 180 ° C. and increased to 24.4% when they reached 400 ° C. (b). This indicates that copper combines with oxygen to form copper oxide.
- the coated copper nanowires of Example 2 were prevented from oxidation by the silver coating, so that the weight increase was 0% with respect to the total temperature change (a).
- Example 3 the concentration of the hydrazine as a reducing agent was 0.33M, but in Comparative Example 2 illustrated here, the concentration was higher than 1.33M. As shown in the scanning microscope photograph of FIG. 13, it may be confirmed that the copper is manufactured in the form of particles without being formed of nanowires.
- Example 3 Except that the temperature inside the reactor was maintained at 35 °C in the reduction reaction with the addition of hydrazine was tested under the same conditions as in Example 3. As shown in the scanning microscope photograph of FIG. 14, it may be confirmed that the copper nanowires are not formed but are formed in a particle form.
- the silver-coated copper nanowires according to the present invention are useful for the production of electromagnetic shielding pastes or high-conductivity pastes in which electrical conductivity is not reduced as oxidation is prevented even in air or at high temperatures, and thus high electrical conductivity is required.
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Abstract
Description
Claims (19)
- (a) 물에 ①수산화나트륨, ②구리 화합물, ③피페라진(C4H10N2)과 헥사메틸렌디아민(C6H16N2)에서 선택된 하나 이상의 물질이 첨가된 수용액을 교반하는 단계;(b) 상기 수용액에 환원제를 첨가하여 구리 이온을 환원시켜 구리 나노 와이어를 제조하는 단계;(c) (b) 단계에서 제조된 구리 나노 와이어를 세척 및 건조하는 단계; 및(d) (c) 단계에서 건조된 구리 나노 와이어에 은 코팅을 형성하는 단계;를 포함하는 은 코팅 구리 나노 와이어의 제조방법.
- 제1항에 있어서, 상기 (a) 단계의 ①수산화나트륨은 2.5 내지 25M의 농도를 가지도록 첨가되는 것을 특징으로 하는 은 코팅 구리 나노 와이어의 제조방법.
- 제1항에 있어서, 상기 (a) 단계의 ②구리 화합물은 구리 니트레이트, 구리 설페이트, 구리 설파이트, 구리 아세테이트, 구리 클로라이드, 구리 브로마이드, 구리 요오디드, 구리 포스페이트 또는 구리 카보네이트에서 선택되는 하나 이상인 것을 특징으로 하는 은 코팅 구리 나노 와이어의 제조방법.
- 제1항에 있어서, 상기 (a) 단계의 구리 화합물은 구리 이온 기준으로 0.004 내지 0.5M의 농도를 가지도록 첨가되는 것을 특징으로 하는 은 코팅 구리 나노 와이어의 제조방법
- 제1항에 있어서, 상기 피페라진(C4H10N2) 또는 헥사메틸렌디아민(C6H16N2)은 0.008 내지 2.0M의 농도를 가지도록 첨가되는 것을 특징으로 하는 은 코팅 구리 나노 와이어의 제조방법.
- 제1항에 있어서, 상기 (b) 단계의 환원제는 하이드라진, 아스코르브산, L(+)-아스코르브산, 이소아스코르브산, 아스코르브산 유도체, 옥살산, 포름산, 포스파이트, 인산, 설파이트 또는 나트륨 보로하이드라이드에서 선택되는 하나 이상인 것을 특징으로 하는 은 코팅 구리 나노 와이어의 제조방법.
- 제 1항에 있어서, 상기 (b) 단계의 환원제는 0.01 내지 1.0M의 농도를 가지도록 첨가되는 것을 특징으로 하는 은 코팅 구리 나노 와이어의 제조방법.
- 제1항에 있어서, 상기 (b) 단계는 40 내지 100℃에서 수행되는 것을 특징으로 하는 은 코팅 구리 나노 와이어의 제조방법.
- 제1항에 있어서, 상기 (c) 단계의 구리 나노 와이어의 세척은 하이드라진 용액을 이용하여 수행되는 것을 특징으로 하는 은 코팅 구리 나노 와이어의 제조방법.
- 제1항에 있어서, 상기 (d) 단계는 (c) 단계에서 세척 및 건조된 구리 나노 와이어를 수용액에 분산하고, 하나 이상의 은 캡핑제를 포함하는 암모니아-은 착물 용액을 혼합하여 일정 조건 하에서 교반하는 것을 특징으로 하는 은 코팅 구리 나노 와이어의 제조방법.
- 제10항에 있어서, 상기 은 캡핑제는 피페라진, 헥사메틸렌디아민, 에틸렌디아민, 트라이에틸렌디아민, 프로판-1,3-디아민, 부탄-1,4-디아민, 펜탄-1,5-디아민, N,N,N′,N′-테트라메틸에틸렌디아민, N,N-디에틸에틸렌디아민, N,N,N′-트리메틸-1,3-프로판디아민, N,N-디메틸-N′-에틸에틸렌디아민, N-프로필-1,3-프로판디아민, N2,N2-디메틸-1,2-부탄디아민, N-부틸에틸렌디아민, N-아이소프로필-1,3-프로판디아민, 폴리에틸글라이콜 디아민, 1,3-사이클로헥산디아민, N-메틸-N′-사이클로프로필 에틸렌디아민, N,N′-디메틸에틸렌디아민, N,-에틸에틸렌디아민, N-메틸에틸렌디아민, N,N′-디메틸-1,6-헥센디아민, N,N,N′,N′-테트라메틸-1,4-부탄디아민, N-메틸-N′-사이크로헥실 에틸렌디아민에서 선택되는 하나 이상인 것을 특징으로 하는 은 코팅 구리 나노 와이어의 제조방법.
- 제10항에 있어서, 상기 은 캡핑제는 암모니아-은 착물 용액 내에 0.01 내지 1M의 농도가 되도록 첨가되는 것을 특징으로 하는 은 코팅 구리 나노 와이어 제조방법.
- 제10항에 있어서, 상기 암모니아-은 착물 용액은 질산은 용액에 암모니아수를 첨가하여 제조되는 것을 특징으로 하는 은 코팅 구리 나노 와이어 제조방법.
- 제13항에 있어서, 상기 암모니아-은 착물 용액 내의 질산은 농도는 0.006 내지 0.06M인 것을 특징으로 하는 은 코팅 구리 나노 와이어 제조 방법.
- 제 13항에 있어서, 상기 암모니아-은 착물 용액 내의 암모니아 수 농도는 0.01 내지 0.3M인 것을 특징으로 하는 은 코팅 구리 나노 와이어 제조 방법.
- 제1항 내지 제15항 중 어느 한 항의 방법에 의해 제조된 은 코팅 구리 나노 와이어.
- 제16항에 있어서, 상기 은 코팅 구리 나노 와이어에서 은의 함량은 전체 나노 와이어 100중량부에 대해서 2 내지 60 중량부인 것을 특징하는 은 코팅 구리 나노 와이어.
- 제16항에 따른 은 코팅 구리 나노 와이어를 포함하는 전자파 차폐 페이스트.
- 제16항에 따른 은 코팅 구리 나노 와이어를 포함하는 고전도성 페이스트.
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EP3159078A1 (en) | 2017-04-26 |
JP6379228B2 (ja) | 2018-08-22 |
US20170140846A1 (en) | 2017-05-18 |
KR20150145892A (ko) | 2015-12-31 |
EP3159078B1 (en) | 2019-10-16 |
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