KR101561639B1 - Cables having a coating layer of graphene - Google Patents

Cables having a coating layer of graphene Download PDF

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Publication number
KR101561639B1
KR101561639B1 KR1020140044322A KR20140044322A KR101561639B1 KR 101561639 B1 KR101561639 B1 KR 101561639B1 KR 1020140044322 A KR1020140044322 A KR 1020140044322A KR 20140044322 A KR20140044322 A KR 20140044322A KR 101561639 B1 KR101561639 B1 KR 101561639B1
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South Korea
Prior art keywords
oxide
graphene
layer
metal wire
coating layer
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KR1020140044322A
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Korean (ko)
Inventor
양우석
김형근
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전자부품연구원
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Priority to KR1020140044322A priority Critical patent/KR101561639B1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/32—Filling or coating with impervious material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/08—Flat or ribbon cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring

Abstract

The present invention relates to a cable having a graphene coating layer and a manufacturing method thereof, and more particularly, to a cable having a graphene coating layer and a method of manufacturing the same. More particularly, the present invention relates to a cable having a graphene coating layer, A cable having a graphene coating layer for providing an intermediate layer for preventing mechanical / thermal / chemical damage to the graphene coating layer in the process of preserving / enhancing stability, in particular, in the process of forming an insulating sheath outside the metal wire after the graphene coating; and And a method for producing the same.
According to an aspect of the present invention, A cable having a graphene coating layer for separately forming a layer made of graphene on a metal wire (110) which is a conductor of a coaxial or a flat cable, comprising: a metal wire (110) A composite plating layer (120) having a conductor property by plating a metal wire (110) on the outer surface of the metal wire (110) with a mixture of the metal wire (110) with a homogeneous or dissimilar metal and graphene; A graphene coating layer 130 having a conductor characteristic by coating graphene on the outer surface of the composite plating layer 120; And an insulating outer layer 140 which functions as an insulating layer by coating an outer surface of the graphene coating layer 130 with an insulator made of a fluororesin.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cable having a graphene coating layer,

The present invention relates to a cable having a graphene coating layer and a manufacturing method thereof, and more particularly, to a cable having a graphene coating layer and a method of manufacturing the same. More particularly, the present invention relates to a cable having a graphene coating layer, A cable having a graphene coating layer for providing an intermediate layer for preventing mechanical / thermal / chemical damage to the graphene coating layer in the process of preserving / enhancing stability, in particular, in the process of forming an insulating sheath outside the metal wire after the graphene coating; and And a method for producing the same.

Generally, a cable is a wire having an outer sheath formed outside a conductor (core) of a metal material and widely used in a wide variety of industrial fields such as power, communication, control, apparatus, and transportation.

Although such a cable is made of metal, which is a representative conductor, it is excellent in electrical conductivity, but in some cases, it is not easy to exhibit a sufficient function as a conductive material due to reduction in strength, effect of corrosion, increase in resistance due to reduction in cross- Methods have been explored to develop alloys to preserve or enhance the electrical and thermal properties of cables, or to perform surface treatments (such as coatings) of metal conductors used in cables.

On the other hand, Korean Patent Laid-Open Publication No. 10-2014-0024561 (2014.03.03) is disclosed as a background of the present invention, which is a graphene-coated metal conductor, a flexible flat cable including the same, A metal conductor; And a graphene layer formed on the surface of the metal conductor, wherein the metal conductor comprises a planar conductor or an annular conductor, the metal conductor comprising a metal catalyst layer for graphene growth formed on a surface thereof, Or a graphene-coated metal conductor including a multi-layered graphene layer, a flexible flat cable including the same, and a method of manufacturing the same.

Thus, conventionally, a graphene layer is formed on the surface of a flat or annular metal conductor to have a surface treatment structure of the metal conductor for preserving or improving the electrical and thermal properties of the cable.

However, in the related art, since a graphene layer is formed on the surface of a metal conductor and then a shell for insulation is formed directly on the surface, a mechanical, thermal, and chemical damage to the surface of the graphene There is a problem that electrical and thermal characteristics due to graphene are remarkably deteriorated.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a method for producing a polymer electrolyte membrane, And a graphene coating layer for preventing mechanical, thermal, and chemical damage to the surface of the graphene coating layer during the formation of the insulating sheath through the formation of the doped polymer layer, and a method for manufacturing the same The purpose is to provide.

According to an aspect of the present invention, A cable having a graphene coating layer for separately forming a layer made of graphene on a metal wire (110) which is a conductor of a coaxial or a flat cable, comprising: a metal wire (110) A composite plating layer (120) having a conductor characteristic by plating an outer surface of the metal wire (110) using an electrolytic plating solution in which the metal wire (110) is mixed with a homogeneous or dissimilar metal and a graphene; A graphene coating layer 130 having a conductor characteristic by coating graphene on the outer surface of the composite plating layer 120; And an insulating outer layer 140 formed on the outer surface of the graphene coating layer 130 and coated with an insulator made of a fluorine resin to serve as an insulating layer, Further comprising at least one compound selected from the group consisting of a graphite nanoplate, a graphene oxide, a reduced graphene oxide, a graphene nanoflurry, or a mixture thereof, as well as a metal consisting of aluminum, iron, The composite plated layer 120 is plated to a thickness of 100 nm to 100 μm on the surface of the metal wire 110 and a doping polymer is applied and dried between the graphene coating layer 130 and the insulating outer layer 140 Further comprising a doping polymer layer (150) protecting the graphene coating layer (130), the doping polymer comprising: Wherein the polymer matrix is a mixture of a polymer matrix, a metallic nanoparticle and an organic dopant, wherein the polymer matrix is selected from the group consisting of polyvinyl alcohol, polymethylmethacrylate (PMMA), polyethylene oxide, polyvinylidene fluoride fluoride, and a copolymer thereof, and the metallic nanoparticles may be at least one selected from the group consisting of one or more of zinc, cadmium, palladium, iridium, ruthenium, osmium, rhodium, platinum, A metal oxide such as aluminum, iron, nickel, cobalt, indium, silver oxide, copper oxide, gold oxide, zinc oxide, cadmium oxide, palladium oxide, iridium oxide, ruthenium oxide, osmium oxide, rhodium oxide, platinum oxide, Indium oxide, or a combination of at least one of these selected from the group consisting of an ionic liquid, an organic A solvent, and a mixture of an acid compound.

delete

According to the present invention, it is possible to prevent mechanical, thermal, and chemical damage to the surface of the graphene coating layer in the process of forming the insulating sheath.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view of a cable having a graphene coating layer according to an embodiment of the present invention.
2 is a flow chart of a process for manufacturing a cable having a graphene coating layer according to an embodiment of the present invention.

The cable having the graphene coating layer according to the present invention and the method of manufacturing the same will be described in detail with reference to the accompanying drawings.

In the following description of the exemplary embodiments of the present invention, a detailed description of components that are widely known and used in the art to which the present invention belongs is omitted, and unnecessary explanations thereof are omitted. It is to communicate the point more clearly.

1 is a view illustrating a cable having a graphene coating layer according to an embodiment of the present invention.

Accordingly, a cable having a graphene coating layer will be schematically described. In a cable having a graphene coating layer for separately forming a layer made of graphene on a metal wire material 110 which is a conductor of a coaxial or flat cable, A metal wire 110 positioned at a portion of the metal wire 110; A composite plating layer (120) having a conductor characteristic by plating an outer surface of the metal wire (110) using an electrolytic plating solution in which the metal wire (110) is mixed with a homogeneous or dissimilar metal and a graphene; A graphene coating layer 130 having a conductor characteristic by coating graphene on the outer surface of the composite plating layer 120; And an insulating outer layer 140 which functions as an insulating layer by coating an outer surface of the graphene coating layer 130 with an insulator made of a fluororesin.

Hereinafter, the constitution of each part of the present invention will be described in detail.

First, the metal wire 110 is placed in a core portion of the cable 1 to serve as a conductor.

Meanwhile, the metal wire 110 has flexibility, stretchability, or a combination thereof.

The metal wire 110 is made of copper, aluminum, iron, nickel, gold, silver, platinum or a combination of at least one selected from the foregoing and is manufactured into a centrifugal shape having an arbitrary thickness by extrusion molding, ) Is a conductor that basically makes current flow.

The composite plating layer 120 is formed by plating an outer surface of the metal wire 110 with an electrolytic plating solution in which the metal wire 110 is mixed with a homogeneous or dissimilar metal and graphene, 110). ≪ / RTI >

Meanwhile, the composite plating layer 120 is formed by electrolytic plating by passing the metal wire 110 through an electrolytic plating solution to form a composite plating layer 120.

In addition, the electrolytic solution may include a metal such as copper, aluminum, iron, nickel, gold, silver, platinum or a combination of at least one selected from the same or different metals as the metal wire 110, Graphite nanoplatelets, graphene oxide, reduced graphene oxide, graphene nanoplatelets, or a mixture of at least one thereof.

At this time, the graphite nanoplate is formed of natural graphite particles, and the graphene oxide and reduced graphene oxide are obtained by oxidizing graphite to synthesize graphite oxide, and one graphene oxide is peeled off, The fin nano plate is obtained by forming a thin natural graphite.

At this time, the composite plating layer 120 is electroplated. For example, the composite plating layer 120 may be plated with a thickness of 100 nm to 100 μm on the surface of the metal wire 110.

The graphene coating layer 130 has a conductive property by coating graphene on the outer surface of the composite plating layer 120.

Meanwhile, the graphene coating layer 130 is formed in a layer or a sheet form of graphene, in which a plurality of carbon atoms are covalently linked to form a polycyclic aromatic molecule.

In addition, the graphene coating layer 130 may be formed as a single layer, but the present invention is not limited thereto. The graphene coating layer 130 may have a plurality of layers, and the graphene coating layer 130 may have a large area.

The insulating outer layer 140 is coated with an insulator made of a fluorine resin on the outside of the graphene coating layer 130 to serve as an insulating layer.

On the other hand, the insulating shell layer 140 has the same shape and structure as those commonly used in conventional insulation coatings.

A doping polymer layer 150 is formed between the graphene coating layer 130 and the insulating sheathing layer 140 to protect the graphene coating layer 130 by coating and drying a doping polymer.

Meanwhile, the doped polymer layer 150 may protect the graphene coating layer 130 while controlling the conductivity of the graphene coating layer 130.

The doped polymer is a mixture of a polymer matrix, metallic nanoparticles, and an organic dopant.

The polymer matrix may be selected from the group consisting of polyvinyl alcohol, polymethyl methacrylate (PMMA), polyethylene oxide, polyvinylidene fluoride, and copolymers thereof And includes at least one or more.

The metallic nanoparticles may also include one or more of silver, copper, gold, zinc, cadmium, palladium, iridium, ruthenium, osmium, rhodium, platinum, aluminum, iron, nickel, cobalt, indium At least one selected from the group consisting of silver oxide, silver oxide, copper oxide, zinc oxide, cadmium oxide, palladium oxide, iridium oxide, ruthenium oxide, osmium oxide, rhodium oxide, platinum oxide, iron oxide, nickel oxide, cobalt oxide, And combinations thereof.

The organic dopant is a mixture of an ionic liquid, an organic solvent and an acid compound.

Here, the ionic liquid refers to a material having physical properties that are present in a liquid state even though they are composed of ions at room temperature. The ionic liquid is defined as a salt in a liquid state composed only of ions, and a combination of a cation and an anion And have various physical and chemical properties.

At this time, the ionic liquid is chemically and thermally stable, has high polarity and ionic conductivity, and can function as a dopant capable of controlling the electronic state of graphene through interaction with graphene.

At this time, the acid compounds include nitric acid, sulfuric acid, potassium dihydrogenphosphate, acetic acid, or a combination of at least one selected from these.

2 illustrates a method of manufacturing a cable having a graphene coating layer according to an embodiment of the present invention.

According to this, in a method of manufacturing a cable having a graphene coating layer for separately forming a layer made of graphene on a surface of a metal wire material 110 which is a conductor of a coaxial or a flat cable, And a first step (S210) of preparing the metal wire rod (110).

In the first step S210, the metal wire 110 located at the core portion of the cable 1 is made of a material made of copper, aluminum, iron, nickel, gold, silver, platinum or a combination of at least one of them And extrusion molding is carried out so as to have an arbitrary thickness and length.

After the first step S210, an electrolytic plating solution obtained by mixing the metal wire 110 with a homogeneous or dissimilar metal and graphene is plated on the surface of the metal wire 110 to form a composite plating layer 120, (Step S220).

At this time, the second step S220 is a step of connecting the metal wire material 110 manufactured through the first step S210 to the outer surface of the metal wire material 110 by using copper, aluminum, iron, nickel, Graphite nanoplatelets (GNPs), graphene oxide, reduced graphene oxide, graphene nanoplatelets, and the like, as well as metals made of at least one selected from the group consisting of gold, silver, And the metal wire rod 110 is passed through the electrolytic plating solution to form a composite plating layer 120.

The third step S230 includes coating the surface of the composite plating layer 120 with graphene to form a graphene coating layer 130 after the second step S220.

In the third step S230, when the composite plating layer 120 is formed on the surface of the metal wire 110 through the second step S220, a plurality of carbon atoms are formed on the surface of the composite plating layer 120 And a graphene coating layer 130 is formed in the form of a layer or sheet of graphene which is covalently bonded to form a polycyclic aromatic molecule.

Further, after the third step (S230), a fourth step (S240) of forming a doped polymer layer 150 by coating and drying the doped polymer is further included.

In the fourth step S240, a coating method such as spin coating, dip coating or spray coating is used to form the doped polymer layer 150. The polymer matrix or the metallic nanoparticles may be coated with an ionic liquid , An organic solvent and an acid, then applying the solution on the surface of the graphene coating layer 130 and drying the solution to form a doped polymer layer 150.

The method further includes a fifth step S250 of forming an insulating outer layer 140 by coating a fluororesin insulator on the surface of the doped polymer layer 150 after the fourth step S240.

The fifth step S250 is a step of coating the surface of the doped polymer layer 150 with a fluororesin insulator widely used in conventional insulation coating to complete the manufacture of the cable 1. [

As described above. While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It will be understood by those skilled in the art that various changes, modifications, and alterations can be made by those skilled in the art.

Cable; 1 metal wire; 110
Composite coating layer 120 graphene coating layer 130
Insulating sheath layer 140 dope polymer layer 150

Claims (5)

A cable having a graphene coating layer for separately forming a layer made of graphene on a metal wire (110) which is a conductor of a coaxial or a flat cable,
A metal wire 110 positioned at a core portion of the cable;
A composite plating layer (120) having a conductor characteristic by plating an outer surface of the metal wire (110) using an electrolytic plating solution in which the metal wire (110) is mixed with a homogeneous or dissimilar metal and a graphene;
A graphene coating layer 130 having a conductor characteristic by coating graphene on the outer surface of the composite plating layer 120;
And an insulating outer layer 140 formed on the outer surface of the graphene coating layer 130 and coated with an insulator made of a fluororesin,
The electrolytic plating solution may contain a metal such as a graphite nanoplate, a graphene oxide, a reduced graphene oxide, or a mixture of a metal such as aluminum, iron, platinum or a combination of at least one selected from the same or different metals, Graphene nanoflot, or graphene nanoflurry, or a mixture of at least one selected from the foregoing,
The composite plating layer 120 is plated on the surface of the metal wire 110 to a thickness of 100 nm to 100 탆,
A doping polymer layer 150 is formed between the graphene coating layer 130 and the insulating sheathing layer 140 to protect the graphene coating layer 130 by coating and drying a doping polymer.
The doping polymer comprising: A polymer matrix, a metallic nanoparticle, and an organic-based dopant,
The polymer matrix may be at least one selected from the group consisting of polyvinyl alcohol, polymethyl methacrylate (PMMA), polyethylene oxide, polyvinylidene fluoride, and copolymers thereof And more preferably,
The metallic nanoparticles may include one or more of zinc, cadmium, palladium, iridium, ruthenium, osmium, rhodium, platinum, aluminum, iron, nickel, cobalt, indium, silver oxide, copper oxide, Further comprising at least one selected from zinc, cadmium oxide, palladium oxide, iridium oxide, ruthenium oxide, osmium oxide, rhodium oxide, platinum oxide, iron oxide, nickel oxide, cobalt oxide, indium oxide,
Wherein the organic dopant is a mixture of an ionic liquid, an organic solvent, and an acid compound. delete delete A method of manufacturing a cable having a graphene coating layer for separately forming a layer of graphene on a metal wire (110) which is a conductor of a coaxial or flat cable,
A first step (S210) of preparing a metal wire rod 110 located at a core portion of the cable 1;
A second step S220 of plating the surface of the metal wire 110 with an electrolytic plating solution obtained by mixing the metal wire 110 with a homogeneous or dissimilar metal and graphene to form a composite plating layer 120;
And a third step (S230) of forming a graphene coating layer 130 by coating the surface of the composite plating layer 120 with graphene,
A fourth step (S240) of forming a doped polymer layer 150 by applying and drying a doped polymer after the third step (S230);
And a fifth step S250 of coating the surface of the doped polymer layer 150 with a fluororesin insulator to form an insulating outer layer 140,
The electrolytic plating solution may contain a metal such as a graphite nanoplate, a graphene oxide, a reduced graphene oxide, or a mixture of a metal such as aluminum, iron, platinum or a combination of at least one selected from the same or different metals, Graphene nanoflot, or graphene nanoflot, or mixtures thereof,
The composite plating layer 120 is plated on the surface of the metal wire 110 to a thickness of 100 nm to 100 μm,
The doping polymer comprising: A polymer matrix, a metallic nanoparticle, and an organic dopant,
The polymer matrix may be at least one selected from the group consisting of polyvinyl alcohol, polymethyl methacrylate (PMMA), polyethylene oxide, polyvinylidene fluoride, and copolymers thereof And more preferably,
The metallic nanoparticles may include one or more of zinc, cadmium, palladium, iridium, ruthenium, osmium, rhodium, platinum, aluminum, iron, nickel, cobalt, indium, silver oxide, copper oxide, Further comprising at least one selected from zinc, cadmium oxide, palladium oxide, iridium oxide, ruthenium oxide, osmium oxide, rhodium oxide, platinum oxide, iron oxide, nickel oxide, cobalt oxide, indium oxide,
Wherein the organic dopant is a mixture of an ionic liquid, an organic solvent, and an acid compound. delete
KR1020140044322A 2014-04-14 2014-04-14 Cables having a coating layer of graphene KR101561639B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180269660A1 (en) * 2017-03-15 2018-09-20 Federal-Mogul Llc Advanced ignition coil wires
CN113327706A (en) * 2021-06-10 2021-08-31 上海贝恩科电缆有限公司 Outdoor travelling cable with polar region weather resistance and preparation method
CN117050418A (en) * 2023-09-27 2023-11-14 广东远光特种导线有限公司 Preparation process of polymer material for photovoltaic cable

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006294528A (en) 2005-04-14 2006-10-26 Hitachi Cable Ltd Coaxial cable with very small diameter and manufacturing method of the same
KR100748228B1 (en) 2006-02-28 2007-08-09 한국과학기술원 Method of making metal/carbon nanotube composite materials by electroplating

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006294528A (en) 2005-04-14 2006-10-26 Hitachi Cable Ltd Coaxial cable with very small diameter and manufacturing method of the same
KR100748228B1 (en) 2006-02-28 2007-08-09 한국과학기술원 Method of making metal/carbon nanotube composite materials by electroplating

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180269660A1 (en) * 2017-03-15 2018-09-20 Federal-Mogul Llc Advanced ignition coil wires
US10923887B2 (en) * 2017-03-15 2021-02-16 Tenneco Inc. Wire for an ignition coil assembly, ignition coil assembly, and methods of manufacturing the wire and ignition coil assembly
CN113327706A (en) * 2021-06-10 2021-08-31 上海贝恩科电缆有限公司 Outdoor travelling cable with polar region weather resistance and preparation method
CN117050418A (en) * 2023-09-27 2023-11-14 广东远光特种导线有限公司 Preparation process of polymer material for photovoltaic cable
CN117050418B (en) * 2023-09-27 2024-04-05 广东远光特种导线有限公司 Preparation process of polymer material for photovoltaic cable

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