WO2022071901A1 - Cnt-metal (al, cu, vd) ultra-conductive composite wires and a method and system for ultra-conductive wire production - Google Patents

Cnt-metal (al, cu, vd) ultra-conductive composite wires and a method and system for ultra-conductive wire production Download PDF

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Publication number
WO2022071901A1
WO2022071901A1 PCT/TR2021/050820 TR2021050820W WO2022071901A1 WO 2022071901 A1 WO2022071901 A1 WO 2022071901A1 TR 2021050820 W TR2021050820 W TR 2021050820W WO 2022071901 A1 WO2022071901 A1 WO 2022071901A1
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cnt
conductive
coating
sample
composite embodiment
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PCT/TR2021/050820
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French (fr)
Inventor
Mehmet Ertuğrul
Yusuf KOÇAK
Emre GÜR
Ahmet ÖZMEN
Mohd Nizar HAMİDON
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Atatürk Üni̇versi̇tesi̇ Bi̇li̇msel Araştirma Projeleri̇ Bi̇ri̇mi̇
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Publication of WO2022071901A1 publication Critical patent/WO2022071901A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • 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
    • H01B1/023—Alloys based on aluminium
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/04—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of carbon-silicon compounds, carbon or silicon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y40/00—Manufacture or treatment of nanostructures

Definitions

  • the invention relates to a system and method for manufacturing a composite embodiment of ultra-conductive feature developed for use in electric transmission lines, electric engine and transformers, wireless electric transmission for electric vehicles.
  • the invention particularly relates to a composite embodiment comprising metal/carbon nano-tube (CNT) content displaying ultra conductivity for electric cables having less heating but high current carrying capacity, and a production system for it.
  • CNT metal/carbon nano-tube
  • TR2016/00907 relates to particulate agents, composites comprising them and preparation and use of them.
  • Said application discloses methods for processing particulate carbon materials such as graphitic particles or carbon nano-particles, for instances CNTs’ agglomerates.
  • Initial material is mixed in a processing container in presence of low pressured plasma formed between a central electrode and an outer rotating conductive drum containing processing material.
  • Preferred material is mixed in presence of conductive contact objects such as metal balls or other contact assemblies having specific surface area relatively higher where material to be processed moves and having plasma shining on surface.
  • conductive contact objects such as metal balls or other contact assemblies having specific surface area relatively higher where material to be processed moves and having plasma shining on surface. It is discovered that the method agglomerated nanoparticle effectively and exfoliate graphitic material, and formed very thin graphitic plates displaying graphene type features.
  • the obtained disaggregate or exfoliate carbon nanomaterials is a characteristic of the invention and are composite materials used as distributed inside conductive polymeric composites for
  • Patent numbered TR2017/20128 relates to composite materials with features of electrically conductive and delamination resistant.
  • Said invention relates to improvable composite material that can be used in applications wherein high mechanic performance and high electrical conductivity is needed.
  • Improvable composite material comprises two or more layers of reinforced fibres infused or impregnated with improvable matrix resin and carbon nano materials, for instance, nano tubes and area of inter-layers comprising dissolved polymeric hardening particles.
  • Carbon nano materials are considerably smaller in terms of size when compared to polymeric hardening particles.
  • Polymeric hardening particles is dissolved considerably in matrix resin upon curing of composite material and inter-layer area has separate particulates after curing.
  • Application numbered TR2017/15655 relates to carbon nano-tube poly-oxymethylen composition of perfect electrical conductivity and developed processable features and formed product of the composition.
  • Said invention discloses a carbon nano-tube polyoxymethylene resin composition comprising polyoxymethylene of 91 % to 98,7 % by weight; and 6 carbon nano tubes of 1 % to 6 scales by weight and regulatory agent being a polymer having nucleic shield structure of 0,3 % by weight to 3 scales.
  • a formed product made from said resin composition is obtained.
  • EP2788542B1 relates to carbon fiber for composite materials having enhanced conductivity.
  • Said invention relates to conductivity finished carbon fiber made up of carbon-fiber filaments with a metal coating characterized that- the carbon-fiber filaments comprise a preparation disposed on the metal coating, the preparation being based on at least one polymeric binder and comprising conductive nanoparticles, and that the concentration of the metal coating is 8 to 25 wt % and the concentration of the conductive nanoparticles is 0.1 to 1 wt %, relative to the weight of the carbon fibers which are provided with the metal coating and the preparation.
  • carbon fibers for fiber-reinforced composite material comprising carbon fibers made up of carbon-fiber filaments, wherein the carbon-fiber filaments are coated with a metal, and a polymer-based matrix, wherein the volume fraction of carbon fibers in the composite material is 30 to 70 vol.-%, wherein the composite material further comprises conductive nanoparticles which are at least partially dispersed in the matrix.
  • the present invention relates to a production system and method for an ultra conductive CNT - Metal composite embodiment meeting the needs mentioned above, eliminating all disadvantages and providing some additional advantages.
  • Primary purpose of the invention is to disclose a CNT-Metal composite embodiment with both increased currents carrying capacities and improved conductivity, and a production system and method related thereto.
  • Another purpose of the invention is to disclose a CNT-Metal composite embodiment not having increase in resistance in electron transfer conducted during power transmission.
  • a further purpose of the invention is to disclose a more than one carbon nano-tube layered CNT-Metal composite embodiment.
  • Another purpose of the invention is to disclose a CNT-Metal composite embodiment eliminating oxidizing causing increase of conductivity resistance.
  • the invention relates to a CNT-Metal composite embodiment production system
  • a CNT-Metal composite embodiment production system comprising a conductive coating assembly used in combination with a CNT coating device consisting of a distributor providing conductive sample and a solvent container, a vacuum system connected to said sample inlet part and gas tubes.
  • said production system comprises a conductor magnet to provide conductor closing of said conductive coating assembly onto CNT coated conductive sample and a reverse cylindrical magnetron connected to an arm provided on continuation of said conductive magnet.
  • said solvent container comprises an insulating base part and a conductive outer cylinder.
  • said solvent container comprises two power connection points connecting power from an AC power supply or a DC power supply to conductive sample, one providing contact with said outer cylinder and other contact with conductive sample.
  • gases supplied from said gas tubes to vacuum system are preferably Ar and H 2 .
  • the invention relates to a production method for CNT - Metal composite embodiment defined by a layer obtained by means of coating of a conductive sample provided from a distributor by a CNT solution inside solvent container by use of DC voltage and AC voltage. Accordingly, said production method comprises following process steps.
  • conductive coating in said step (c) and CNT coating process step in said (d) step of production method are repeated successively based on number of layer intended to be obtained in composite embodiment.
  • the invention also relates to a CNT - metal composite embodiment defined by a layer formed by a conductive part and a CNT part coated onto said conductive part.
  • said composite embodiment comprises layers defined with a second conductive part coated onto said CNT part and a second CNT part coated onto said second conductive part.
  • Figure 1 is a general schematic view of CNT coating device of ultra conductive CNT-Metal composite embodiment production system.
  • Figure 2 is a detailed view of CNT coating device of ultra conductive CNT-Metal composite embodiment production system.
  • Figure 3 is a general schematic view of conductive coating assembly of ultra conductive CNT-Metal composite embodiment production system.
  • Figure 4 is a microscopic view of CNT-Metal composite embodiment.
  • ultra conductive composite embodiment (50) and production method for composite embodiment (50) of the invention is described only for better understanding thereof without not restrictive effects.
  • conductive composite embodiment (50) of the invention is shown in figure 4 and comprises a conductive part (51) provided to form preferably at least one layer and a CNT (carbon nano-tube) part (52).
  • Production of ultra conductive composite embodiment (50) is provided by means of CNT coating device (10) shown in Figure 1 and Figure 2 and conductive coating assembly (20) shown in figure 3 through a production system formed by combined use thereof.
  • CNT (carbon nano-tube) coating device 10 comprises an immersing part (11) to provide supply of conductive sample (wire)(30) and solution container (12) containing CNT solution (40) therein.
  • Said conductive sample (30) is selected preferably from a metallic group of copper, aluminium, silver, gold etc.
  • Said CNT solution (40) is a solution wherein MWCNT and isopropanol are used together.
  • CNT coating device (10) also comprises an oscilloscope (13), a function generator (14), an AC power supply (15), a DC power source (16) and connection cables (17) to transfer power from said DC power supply (16) and said AC power supply (15) and said DC power supply into solution container (12).
  • Immersing part (11) basically provides immersion of conductive sample (30) into solvent container (12) and removal thereof by help of engine provided thereon.
  • Solvent container (12) of seal-proof feature provides protection of CNT solution (40) as well functions as a chamber where process of applying CNT onto conductive sample (30) is performed.
  • Solvent container (12) comprises a isolating base part (121) used to isolate solvent container (12) electrically from ground, a conductive outer cylinder (122) provided on said isolating base part (121) and where power from AC power supply (15) or from DC power supply (16) is connected, and two power connection points (123), connecting power from AC power supply (15) or DC power supply (16) to conductive sample (30), one providing contact with conductive outer cylinder (122) and other providing contact with conductive sample (30).
  • Said function generator (14) generates signal to be applied to conductive sample (30) immersed into solvent container (12). Generated signal is transmitted to said oscilloscope (13) and AC power supply (15). Oscilloscope (13) is used for displaying signal transmitted from function generator (14). AC power supply (15) is used to amplify signal transmitted from function generator (14) and direct to solvent container (12). DC power supply (16) provides generation of DC signal to be applied to conductive sample (30) immersed into solvent container (12).
  • Conductive coating assembly (20) shown in figure 3 comprises a sample inlet part (21) having vacuum sealing, a vacuum system (22), gas tubes (23) and reverse cylinder magnetrons (24). Entering conductive sample (30) into coating assembly (20) after CNT coating in CNT coating device (10) is performed from said sample inlet part (21).
  • Said vacuum system (22) comprises a vacuum chamber (221 ), a vacuum meter (222) to measure vacuum value in said vacuum chamber (221), a vacuum indicator (223) where vacuum value measured by said vacuum meter (222) is displayed, a mechanical vacuum pump (224) providing initial vacuum of vacuum system (22), a turbo molecular pump (226) vacuuming vacuum chamber (221), a vacuum hose (225) providing connection between said mechanical vacuum pump (224) and said turbo molecular pump (226) and a pump driver (227) providing drive of turbo molecular pump (226).
  • Ar and H 2 gases are used in vacuum system (22) and the gases are supplied through said gas tubes (23).
  • Gas supply to vacuum chamber (221) through gas tubes (23) is provided by gas valves (231 ). Amount of gas to be supplied to vacuum chamber (221 ) and supply time period are adjusted from gas adjustment unit (232) associated with gas tubes (23).
  • Said reverse cylinder magnetron (24) is associated with an arm (241) extending in continuation thereof. End of said arm (241) contains a conductive magnet (242). Reverse cylindrical magnetron (24) basically is used for coating conductive onto CNT coated conductive samples. Said conductive magnet (242) provides motion of conductive. Said arm (241 ) creates required manoeuvre area required for conductive wire motion. Electric power of reverse cylindrical magnetron (24) is supplied from a source supply (243).
  • CNTs should be functionalize and CNT solution (40) should be prepared.
  • DC power supply (16) is used in coating process, either functionalized or not functionalized CNT solution (40) solvent can be used.
  • conductive sample (30) is pulled up during amplifying by help of immersing part (11 ) and directing CNTs onto conductive sample (30) is contributed.
  • welding of CNTs onto one another on the conductive sample (30) is provided.
  • CNT coating conductive sample is connected to sample inlet part (21 ) in order to provide entrance of single layer CNT coated structure into vacuum chamber (221).
  • vacuum system (22) is taken into pre-vacuuming by mechanical vacuum pump (224) and then turbo molecular pump (226) is started. Vacuum level in vacuum chamber (221 ) is tracked by use of vacuum meter (222) and vacuum display (223). When vacuum value decreases to 8/10 Torr, H2 and Ar gases are supplied to vacuum system (22).
  • conductive wire is pulled into reverse cylindrical magnetron by help of arm (241) and conductive magnet (242).
  • Power supply (243) is started, and coating is performed onto CNT coated structure as per conductive type (copper, silver, aluminium etc.).
  • Type of conductor is the same as type of conductive sample (30) used in CNT coated structure.
  • a second layer is produced by a second conductive part (51 ) coated onto CNT part (52) and second CNT part (52) coated onto said the second conductive part (51).
  • a thermal process is applied, and CNT-metal composite embodiment (50) is produced.
  • Cu-CNT, AI-CNT, Ag-CNT composite embodiments (50) can be produced.
  • CNT-metal composite embodiment (50) of the invention allows welding of CNTS to one another in CNT part (52) and flow of electric current without CNT-metal transition and thus higher current carrying capacity in comparison to metals.
  • Vacuum system (22) used for obtaining composite embodiment (50) provides elimination of oxidization causing increase of resistance of composite embodiment (50) and thus conductivity of obtained structure is increased.

Abstract

The invention relates to a CNT - metal composite embodiment defined by a layer formed by a conductive part and a CNT part coated onto said conductive part and layers defined with a second conductive part coated onto said CNT part and a second CNT part coated onto said second conductive part.

Description

CNT-METAL (Al, Cu, VD) ULTRA-CONDUCTIVE COMPOSITE WIRES AND A METHOD AND SYSTEM FOR ULTRA-CONDUCTIVE WIRE PRODUCTION
The Field of the Invention
The invention relates to a system and method for manufacturing a composite embodiment of ultra-conductive feature developed for use in electric transmission lines, electric engine and transformers, wireless electric transmission for electric vehicles.
The invention particularly relates to a composite embodiment comprising metal/carbon nano-tube (CNT) content displaying ultra conductivity for electric cables having less heating but high current carrying capacity, and a production system for it.
Background of the Invention
Today the most preferred power is electric power because of its economic and useful features. Advantages related to electric power provides expansion of energy use network. Therefore, it has become necessary to develop need for carrying electric energy. Transmission of power, transmission of electric energy generated in controlled and planned way at electric power plants are provided by power transfer and transmission lines providing transmission thereof to distribution lines.
Transportation of energy in energy transmission and transmission lines is provided by conductors . Continuously increasing need for energy results in inadequacy of conductive materials presently in use in terms of current carrying capacities. Today this is tried to be met by use of big conductive materials having higher current carrying capacity when compared to present conductive materials. This causes time loss and cost increase. In addition, as it will increase weight due to increase in dimension of conductive material, it may cause problems such as breaking of conductive materials. In addition to all of them, carrying more by conductive materials causes heating due to overload and may result in fusion of wires and for that reason, conductors may get damaged. For that reason, it is needed to develop and use alternatives for present transmission lines. Recently, composites made by use of carbon nano structures together with metals are produced and it is attempted to increase current carrying capacities of conductive materials. Some of patent applications encountered in the literatures are given below.
Application numbered TR2016/00907 relates to particulate agents, composites comprising them and preparation and use of them. Said application discloses methods for processing particulate carbon materials such as graphitic particles or carbon nano-particles, for instances CNTs’ agglomerates. Initial material is mixed in a processing container in presence of low pressured plasma formed between a central electrode and an outer rotating conductive drum containing processing material. Preferred material is mixed in presence of conductive contact objects such as metal balls or other contact assemblies having specific surface area relatively higher where material to be processed moves and having plasma shining on surface. It is discovered that the method agglomerated nanoparticle effectively and exfoliate graphitic material, and formed very thin graphitic plates displaying graphene type features. The obtained disaggregate or exfoliate carbon nanomaterials is a characteristic of the invention and are composite materials used as distributed inside conductive polymeric composites for electric or electronic objects and devices.
Patent numbered TR2017/20128 relates to composite materials with features of electrically conductive and delamination resistant. Said invention relates to improvable composite material that can be used in applications wherein high mechanic performance and high electrical conductivity is needed. Improvable composite material comprises two or more layers of reinforced fibres infused or impregnated with improvable matrix resin and carbon nano materials, for instance, nano tubes and area of inter-layers comprising dissolved polymeric hardening particles. Carbon nano materials are considerably smaller in terms of size when compared to polymeric hardening particles. Polymeric hardening particles is dissolved considerably in matrix resin upon curing of composite material and inter-layer area has separate particulates after curing.
Application numbered TR2017/15655 relates to carbon nano-tube poly-oxymethylen composition of perfect electrical conductivity and developed processable features and formed product of the composition. Said invention discloses a carbon nano-tube polyoxymethylene resin composition comprising polyoxymethylene of 91 % to 98,7 % by weight; and 6 carbon nano tubes of 1 % to 6 scales by weight and regulatory agent being a polymer having nucleic shield structure of 0,3 % by weight to 3 scales. In addition, a formed product made from said resin composition is obtained.
Application numbered EP2788542B1 relates to carbon fiber for composite materials having enhanced conductivity. Said invention relates to conductivity finished carbon fiber made up of carbon-fiber filaments with a metal coating characterized that- the carbon-fiber filaments comprise a preparation disposed on the metal coating, the preparation being based on at least one polymeric binder and comprising conductive nanoparticles, and that the concentration of the metal coating is 8 to 25 wt % and the concentration of the conductive nanoparticles is 0.1 to 1 wt %, relative to the weight of the carbon fibers which are provided with the metal coating and the preparation. In addition, it relates to a method for producing carbon fibers for fiber-reinforced composite material comprising carbon fibers made up of carbon-fiber filaments, wherein the carbon-fiber filaments are coated with a metal, and a polymer-based matrix, wherein the volume fraction of carbon fibers in the composite material is 30 to 70 vol.-%, wherein the composite material further comprises conductive nanoparticles which are at least partially dispersed in the matrix.
In the composites mentioned above and produced today, hitting increases during transition of electrons from CNT to metal or from metal to CNT during electron transfer in the composite as carbon nano-structures do not contact each other electrically. And this case causes increase in electrical resistance of composites. Therefore, conductivity of obtained composites decreases.
As a result, due to above described disadvantages and inadequacy of existing solutions it has been necessary to make development in the related art.
Brief Description of the Invention
The present invention relates to a production system and method for an ultra conductive CNT - Metal composite embodiment meeting the needs mentioned above, eliminating all disadvantages and providing some additional advantages.
Primary purpose of the invention is to disclose a CNT-Metal composite embodiment with both increased currents carrying capacities and improved conductivity, and a production system and method related thereto. Another purpose of the invention is to disclose a CNT-Metal composite embodiment not having increase in resistance in electron transfer conducted during power transmission.
A further purpose of the invention is to disclose a more than one carbon nano-tube layered CNT-Metal composite embodiment.
Another purpose of the invention is to disclose a CNT-Metal composite embodiment eliminating oxidizing causing increase of conductivity resistance.
In order to achieve above described purposes, the invention relates to a CNT-Metal composite embodiment production system comprising a conductive coating assembly used in combination with a CNT coating device consisting of a distributor providing conductive sample and a solvent container, a vacuum system connected to said sample inlet part and gas tubes. Accordingly, said production system comprises a conductor magnet to provide conductor closing of said conductive coating assembly onto CNT coated conductive sample and a reverse cylindrical magnetron connected to an arm provided on continuation of said conductive magnet.
In order to achieve purposes of the invention, said solvent container comprises an insulating base part and a conductive outer cylinder.
In order to achieve purposes of the invention, said solvent container comprises two power connection points connecting power from an AC power supply or a DC power supply to conductive sample, one providing contact with said outer cylinder and other contact with conductive sample.
In order to achieve purposes of the invention, gases supplied from said gas tubes to vacuum system are preferably Ar and H2.
In order to achieve above mentioned purposes, the invention relates to a production method for CNT - Metal composite embodiment defined by a layer obtained by means of coating of a conductive sample provided from a distributor by a CNT solution inside solvent container by use of DC voltage and AC voltage. Accordingly, said production method comprises following process steps. a) Coating said CNT solution onto conductive sample by transmitting signal from a DC power supply, b) Welding CNTs onto one another on conductive sample by transmitting signal from an AC power supply, c) Coating CNT coated conductive sample layer by a conductive of equivalent structure of conductive sample in the content under a vacuum system, d) Coating CNT - metal layer coated with conductive sample with CNT and forming as second layer, e) Subjecting structure to thermal processing.
In order to achieve purposes of invention, conductive coating in said step (c) and CNT coating process step in said (d) step of production method are repeated successively based on number of layer intended to be obtained in composite embodiment.
The invention also relates to a CNT - metal composite embodiment defined by a layer formed by a conductive part and a CNT part coated onto said conductive part. According to it said composite embodiment comprises layers defined with a second conductive part coated onto said CNT part and a second CNT part coated onto said second conductive part.
The structural and characteristics features of the invention and all advantages will be understood better in detailed descriptions with the figures given below and with reference to the figures, and therefore, the assessment should be made taking into account the said figures and detailed explanations.
Brief Description of the Drawings
Figure 1 is a general schematic view of CNT coating device of ultra conductive CNT-Metal composite embodiment production system.
Figure 2 is a detailed view of CNT coating device of ultra conductive CNT-Metal composite embodiment production system.
Figure 3 is a general schematic view of conductive coating assembly of ultra conductive CNT-Metal composite embodiment production system.
Figure 4 is a microscopic view of CNT-Metal composite embodiment.
The drawings are not necessarily to be scaled and the details not necessary for understanding the present invention might have been neglected. In addition, the components which are equivalent to great extent at least or have equivalent functions at least have been assigned the same number.
Description of References
10 CNT Coating Device
11 Immersing part
12 Solvent Container
121 Insulating Base Part
122 Conductive Outer Cylinder
123 Power Connection Point
13 Oscilloscope
14 Function Generator
15 AC Power Supply
16 DC Power Supply
17 Connection Cable
20 Conductive Coating Assembly
21 Sample Inlet Part
22 Vacuum System
221 Vacuum Chamber
222 Vacuum Meter
223 Vacuum Display
224 Mechanical Vacuum Pump
225 Vacuum Hose
226 Turbo Molecular Pump
227 Pump Driver
23 Gas Tubes
231 Gas Valves
232 Gas Adjustment Unit
24 Reverse Cylindrical Magnetron
241 Arm
242 Conductive Magnet
243 Power Supply
30 Conductive Sample
40 CNT Solution
50 CNT-Metal Composite Embodiment 51 Conductive Part
52 CNT Part
Detailed Description of the Invention
In this detailed description, ultra conductive composite embodiment (50) and production method for composite embodiment (50) of the invention is described only for better understanding thereof without not restrictive effects.
Microscopic view of conductive composite embodiment (50) of the invention is shown in figure 4 and comprises a conductive part (51) provided to form preferably at least one layer and a CNT (carbon nano-tube) part (52). Production of ultra conductive composite embodiment (50) is provided by means of CNT coating device (10) shown in Figure 1 and Figure 2 and conductive coating assembly (20) shown in figure 3 through a production system formed by combined use thereof.
With reference to figure 1 , CNT (carbon nano-tube) coating device (10) comprises an immersing part (11) to provide supply of conductive sample (wire)(30) and solution container (12) containing CNT solution (40) therein. Said conductive sample (30) is selected preferably from a metallic group of copper, aluminium, silver, gold etc. Said CNT solution (40) is a solution wherein MWCNT and isopropanol are used together. CNT coating device (10) also comprises an oscilloscope (13), a function generator (14), an AC power supply (15), a DC power source (16) and connection cables (17) to transfer power from said DC power supply (16) and said AC power supply (15) and said DC power supply into solution container (12).
Immersing part (11) basically provides immersion of conductive sample (30) into solvent container (12) and removal thereof by help of engine provided thereon. Solvent container (12) of seal-proof feature provides protection of CNT solution (40) as well functions as a chamber where process of applying CNT onto conductive sample (30) is performed. Solvent container (12) comprises a isolating base part (121) used to isolate solvent container (12) electrically from ground, a conductive outer cylinder (122) provided on said isolating base part (121) and where power from AC power supply (15) or from DC power supply (16) is connected, and two power connection points (123), connecting power from AC power supply (15) or DC power supply (16) to conductive sample (30), one providing contact with conductive outer cylinder (122) and other providing contact with conductive sample (30). Said function generator (14) generates signal to be applied to conductive sample (30) immersed into solvent container (12). Generated signal is transmitted to said oscilloscope (13) and AC power supply (15). Oscilloscope (13) is used for displaying signal transmitted from function generator (14). AC power supply (15) is used to amplify signal transmitted from function generator (14) and direct to solvent container (12). DC power supply (16) provides generation of DC signal to be applied to conductive sample (30) immersed into solvent container (12).
Conductive coating assembly (20) shown in figure 3 comprises a sample inlet part (21) having vacuum sealing, a vacuum system (22), gas tubes (23) and reverse cylinder magnetrons (24). Entering conductive sample (30) into coating assembly (20) after CNT coating in CNT coating device (10) is performed from said sample inlet part (21). Said vacuum system (22) comprises a vacuum chamber (221 ), a vacuum meter (222) to measure vacuum value in said vacuum chamber (221), a vacuum indicator (223) where vacuum value measured by said vacuum meter (222) is displayed, a mechanical vacuum pump (224) providing initial vacuum of vacuum system (22), a turbo molecular pump (226) vacuuming vacuum chamber (221), a vacuum hose (225) providing connection between said mechanical vacuum pump (224) and said turbo molecular pump (226) and a pump driver (227) providing drive of turbo molecular pump (226). Ar and H2 gases are used in vacuum system (22) and the gases are supplied through said gas tubes (23). Gas supply to vacuum chamber (221) through gas tubes (23) is provided by gas valves (231 ). Amount of gas to be supplied to vacuum chamber (221 ) and supply time period are adjusted from gas adjustment unit (232) associated with gas tubes (23).
Said reverse cylinder magnetron (24) is associated with an arm (241) extending in continuation thereof. End of said arm (241) contains a conductive magnet (242). Reverse cylindrical magnetron (24) basically is used for coating conductive onto CNT coated conductive samples. Said conductive magnet (242) provides motion of conductive. Said arm (241 ) creates required manoeuvre area required for conductive wire motion. Electric power of reverse cylindrical magnetron (24) is supplied from a source supply (243).
Two different methods are applied to coat CNT onto conductive sample (30) inside CNT solution (40). In the first method, AC signal generated from function generator (14) is amplified by help of oscilloscope (13) and transmitted to solvent container (12) by help of connection cables (17). In the second method, signal generated from DC power supply (16) is transmitted to solvent container (12) by help of connection cables (17). Power connection point (123) providing contact with conductive sample (30) and power connection point (123) providing contact with conductive outer cylinder (122) provides potential difference by help of presence of isolation base part (121) between conductive outer cylinder (122) and conductive sample (20). The generated potential difference provides coating of CNT solution (40) in the solvent container (12) onto conductive sample (30) extending in centre of conductive outer cylinder (122). In case of use of AC power supply (15) in coating process, CNTs should be functionalize and CNT solution (40) should be prepared. When DC power supply (16) is used in coating process, either functionalized or not functionalized CNT solution (40) solvent can be used. While using AC power supply (15), conductive sample (30) is pulled up during amplifying by help of immersing part (11 ) and directing CNTs onto conductive sample (30) is contributed. In addition, upon applying DC voltage and AC voltage successively, welding of CNTs onto one another on the conductive sample (30) is provided.
After coating one layer CNT onto conductive sample (30) coating of conductive sample (30) is in base should be made for generating second layer. In such case, composite embodiment of single layer obtained from CNT coating device (10) is sent to conductive coating assembly (20). CNT coating conductive sample is connected to sample inlet part (21 ) in order to provide entrance of single layer CNT coated structure into vacuum chamber (221). Firstly, vacuum system (22) is taken into pre-vacuuming by mechanical vacuum pump (224) and then turbo molecular pump (226) is started. Vacuum level in vacuum chamber (221 ) is tracked by use of vacuum meter (222) and vacuum display (223). When vacuum value decreases to 8/10 Torr, H2 and Ar gases are supplied to vacuum system (22). During that time conductive wire is pulled into reverse cylindrical magnetron by help of arm (241) and conductive magnet (242). Power supply (243) is started, and coating is performed onto CNT coated structure as per conductive type (copper, silver, aluminium etc.). Type of conductor is the same as type of conductive sample (30) used in CNT coated structure. In addition to a layer generated by CNT part (52) and conductive part (51), a second layer is produced by a second conductive part (51 ) coated onto CNT part (52) and second CNT part (52) coated onto said the second conductive part (51). Thus, preferably up to 13 layered CNT part (52) can be placed into metal. For obtaining layered structure, finally a thermal process is applied, and CNT-metal composite embodiment (50) is produced.
In the application of the invention, Cu-CNT, AI-CNT, Ag-CNT composite embodiments (50) can be produced. By use of same principle, production for different metals is made and so it is possible to obtain ultra conductive structures. CNT-metal composite embodiment (50) of the invention allows welding of CNTS to one another in CNT part (52) and flow of electric current without CNT-metal transition and thus higher current carrying capacity in comparison to metals. Vacuum system (22) used for obtaining composite embodiment (50) provides elimination of oxidization causing increase of resistance of composite embodiment (50) and thus conductivity of obtained structure is increased.

Claims

CLAIMS A CNT-Metal composite embodiment (50) production system used in combination with a CNT coating device (10) consisting of a distributor (11) providing conductive sample (30) and a solvent container (12), comprising a conductive coating assembly (20) comprising , a sample inlet part (21 ), a vacuum system (22) and gas tubes (23) and characterized by said conductive coating assembly (20) comprising a conductor magnet (242) to provide coating of conductor onto CNT coated conductive sample obtained in said CNT coating device (10) and a reverse cylindrical magnetron (24) connected to an arm (241 ) provided in continuation of said conductor magnet (242). A CNT-Metal composite embodiment (50) production system according to claim 1 and characterized by said solvent container (12) comprising an isolating base part (121 ) and a conductive outer cylinder (122). A CNT-Metal composite embodiment (50) production system according to claim 1 or claim 2 and characterized by said solvent container (12) comprising two power connection points (123), connecting power from AC power supply (15) or DC power supply (16) to conductive sample (30), one providing contact with conductive outer cylinder (122) and other providing contact with conductive sample (30). A CNT-Metal composite embodiment (50) production system according to claim 1 and characterized by gases supplied from said gas tubes (23) to vacuum system (22) being preferably Ar and H2. A production method for CNT - Metal composite embodiment defined by a layer obtained by means of coating of a conductive sample (30) provided from a distributor (11 ) by a CNT solution (40) inside solvent container (12) by use of DC voltage and AC voltage characterized by comprising process steps of; a) Coating said CNT solution (40) onto conductive sample (30) by transmitting signal from a DC power supply (16), b) Providing welding CNTs onto one another on conductive sample (30) by transmitting signal from an AC power supply (15), c) Coating CNT coated conductive sample layer by a conductive of equivalent structure of conductive sample (30) in the content under a vacuum system (22), d) Re-coating CNT - metal layer coated with conductive sample with CNT and forming as second layer, e) Subjecting structure to thermal processing.
6. A production method according to claim 5 characterized by conductive coating in said step (c) and CNT coating process step in said (d) step being repeated successively based on number of layers intended to be obtained in composite embodiment (50). 7. A CNT - metal composite embodiment (50) defined by a layer formed by a conductive part (51) and a CNT part (52) coated onto said conductive part (51 ) characterized by layers defined with a second conductive part (51) coated onto said CNT part (52) and a second CNT part (52) coated onto said second conductive part (51).
PCT/TR2021/050820 2020-09-30 2021-08-17 Cnt-metal (al, cu, vd) ultra-conductive composite wires and a method and system for ultra-conductive wire production WO2022071901A1 (en)

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Citations (2)

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US20100047568A1 (en) * 2008-08-20 2010-02-25 Snu R&Db Foundation Enhanced carbon nanotube wire
WO2019083038A1 (en) * 2017-10-26 2019-05-02 古河電気工業株式会社 Carbon nanotube composite wire, carbon nanotube-coated electric wire, and wire harness

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US20100047568A1 (en) * 2008-08-20 2010-02-25 Snu R&Db Foundation Enhanced carbon nanotube wire
WO2019083038A1 (en) * 2017-10-26 2019-05-02 古河電気工業株式会社 Carbon nanotube composite wire, carbon nanotube-coated electric wire, and wire harness

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