CN105741975A - Graphene-coated energy-saving metal lead preparation method - Google Patents
Graphene-coated energy-saving metal lead preparation method Download PDFInfo
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- CN105741975A CN105741975A CN201410746238.9A CN201410746238A CN105741975A CN 105741975 A CN105741975 A CN 105741975A CN 201410746238 A CN201410746238 A CN 201410746238A CN 105741975 A CN105741975 A CN 105741975A
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Abstract
The invention discloses a graphene-coated energy-saving metal lead preparation method, belonging to the technical field of reducing power transmission metal lead resistance. The method comprises: preparing a graphene material coating layer on the peripheral surface of a metal lead in a chemical vapor deposition (CVD) method; and placing a bare metal lead in a reactor, adding a carbon source, and performing graphene CVD in the growth temperature between 601 DEG C and 1200 DEG C under the protection of argon and hydrogen to obtain a graphene layer. The conductivity ratio of a metal lead of the invention is one order of magnitudes higher than a traditional metal core; besides, a largest current carrying capacity allowed by a graphene material of a same cross section is 3-6 orders of magnitudes higher than a traditional metal lead. The graphene-coated energy-saving metal lead can effectively improve a conductive capability and greatly reduce transmission loss, aim at substantially enhancing lead performance on the aspects of conductive performance, mechanical performance and durability, and solve the problems that a current transmission line mainly depends on metal, and is high in line loss, and poor in mechanical property.
Description
Technical field
The invention belongs to the resistive technologies field reducing transmission of electricity plain conductor, particularly to the preparation method of the energy-conservation plain conductor of a kind of graphene coated.
Background technology
Energy-conservation electrical network is one of important directions of power transmission network future development, to energy-saving and emission-reduction, improve efficiency of energy utilization significant.From current grid power transmission loss, the loss of long distance powedr transmission depends primarily on the resistance of wire, if the resistance of power transmission line is greatly reduced by process means, will be expected to significantly reduce transmission losses.All kinds of high connductivity wires of current industry development, mainly based on metal alloy class material, pass through metal composite, it is thus achieved that the material comparatively balanced in intensity, electric conductivity, but improve limited at resistance.
Graphene (Graphene) is the new material of a kind of monolayer laminated structure being made up of carbon atom.It is a kind of formed the flat film that hexangle type is honeycomb lattice, the two-dimensional material of only one of which carbon atom thickness by carbon atom with sp2 hybrid orbital.The nano material that world that it is known is thin, the hardest；Heat conductivity is up to 5300Wm-1K-1, higher than CNT and diamond；Under room temperature, its electron mobility is more than 15000cm2/ V s, higher than CNT or silicon crystal；Resistivity about 108Sm-1, lower than copper or silver, for the material that world resistivity is minimum.Because its resistivity is extremely low, the speed of electron transfer is exceedingly fast, and is therefore expected to can be used to develop high-performance electronic element or conductive interconnection material.In conjunction with conduction application, if will have superior electron mobility, superhigh intensity and modulus, and the hot Graphene of ultra-high conducting and existing wire set, will be expected to be greatly improved the conductive capability of wire.
The predominantly organic tool stripping method of the current preparation method of Graphene, epitaxial growth method, chemical oxidization method, chemical vapour deposition technique etc..Wherein mechanical stripping method and epitaxial growth method are difficult to batch preparation；The Graphene defect that chemical oxidization method produces is more, and electric conductivity is limited；Chemical vapour deposition technique can obtain large area quality preferably Graphene at metal carrier surface, and the graphene-structured of preparation is more complete, and electric conductivity is stronger.The principle of chemical vapour deposition technique is that carbon source enters in high temperature reaction stove with gas phase, and original position cracks on catalytic specie surface and deposits Graphene.The research of existing preparing graphene through chemical vapor deposition focuses primarily on after metal surface obtains grapheme material and removes carrier, obtain pure grapheme material, and there is not been reported directly as the research of energy-saving wire to utilize the Graphene at the outer growth in situ of plain conductor.
In conjunction with current industrial background, the present invention proposes at plain conductor outer cladding high-quality graphene, is expected to the electric conductivity from wire, mechanical performance, and useful life longevity aspect is greatly improved wire performance.If by the method for chemical vapour deposition (CVD), development grapheme material is coated with the efficient preparation means of energy-conservation plain conductor, it is thus achieved that substantial amounts of energy-saving wire material, the work efficiency of electrical network will be greatly improved, it is achieved energy-saving and emission-reduction.
Summary of the invention
The preparation method that the purpose of the present invention is to propose to the energy-conservation plain conductor of a kind of graphene coated; it is characterized in that; grapheme material clad is prepared at plain conductor outer surface by the method for chemical vapour deposition (CVD); naked plain conductor is put in reactor; add carbon source, under the protection of argon and hydrogen growth temperature at 601 DEG C-1200 DEG C when carry out the chemical vapour deposition (CVD) of Graphene, obtain the thickness of graphene layer between 1 nanometer to 1 millimeter between；Wherein plain conductor is made up of the monofilament of graphene coated metal inside, or is formed composite cable structure by the combination of monofilaments of graphene coated metal inside.
The material of described plain conductor is copper, aluminum, ferrum, steel, nickel or its two or more composite.
Described carbon source is methane, ethane, propane, ethylene, propylene, acetylene, hexamethylene, dimethylbenzene or its two or more mixture.
Present invention have the advantages that compared to existing technology, have the advantage that and salience effect:
1) transmission line of electricity electricity damages and reduces: adopting wire outer cladding graphene nano material as current-carrying part, conductivity is than conventional metals inner core more than high 1 order of magnitude；It addition, maximum carrying capacity 3-6 the order of magnitude higher than conventional metals wire that the grapheme material that same cross-sectional is amassed allows, the plain conductor of this type of novel graphite alkene cladding can be effectively improved conductive capability, and transmission losses is greatly reduced；Being expected to from electric conductivity, mechanical performance, useful life longevity aspect is greatly improved wire performance.It is in that to change the present situation that current power transmission line relies primarily on metal, line loss is higher, mechanical performance is poor,
2) mechanical performance of power transmission line is improved: utilize graphene coated plain conductor, the conductive capability of unit cross-sectional area wire can be effectively improved, thus wire weight being greatly reduced under certain transmission of electricity load, improve conducting wire sag performance, reduce shaft tower height, increase tower from, capital expenditure is greatly reduced.Grapheme material has stronger mechanical property simultaneously, can partly improve the tensile property of wire.
3) durability of transmission line of electricity is improved: the environment such as wire can be aoxidized in long service process, acid, the corrosion of cable is the potential threat of electrical network.Outside wire rope, the grapheme material of cladding has high chemical stability, acidproof, alkaline-resisting, resistance to oxidation, resistance to less than 300 degrees Celsius high temperature, and the chemical stability of cable can be greatly improved, and improves service life.
Detailed description of the invention
The preparation method that the present invention proposes the energy-conservation plain conductor of a kind of graphene coated, the method is to prepare grapheme material clad by the method for chemical vapour deposition (CVD) at plain conductor outer surface, growth temperature is between 601 DEG C-1200 DEG C, lifting along with growth temperature, the degree of crystallinity of graphene layer will get a promotion, thus reducing the resistivity of compound wire further.Wherein plain conductor is made up of the monofilament of graphene coated metal inside, or is formed composite cable structure by the combination of monofilaments of graphene coated metal inside.Metal inside material is copper, aluminum, ferrum, steel, nickel or its composite.In grapheme material, the thickness of graphene layer is between 1 nanometer to 1 millimeter, according to experimental result, the thickness of graphene layer is relevant to the resistivity of wire and current capacity, deposit thicker graphene layer material can the current capacity of lifting lead wire, reduce the resistivity of wire.Meanwhile, the energy-saving wire of graphene coated metal inside is remarkably improved wiring conductive performance, mechanical performance and useful life longevity.
Embodiment 1
Using the nickel wire line of diameter 1 millimeter as metallic conduction inner core; put it in CVD reactor; with acetylene for carbon source; under the protection of argon and hydrogen, carry out the chemical vapour deposition (CVD) of Graphene when 601 degrees Celsius, deposited, in conductive line surfaces, the grapheme material that thickness is 1 millimeter；10 these type of arrangements of conductors being formed multi-core cable and is used for conductive test, after graphene coated, the more original nickel wire cable of resistivity of this cable declines 20%, and unit cross-sectional area current capacity improves 20 times；
Embodiment 2
Using the nickel wire line of diameter 0.3 millimeter as metallic conduction inner core; put it in CVD reactor; with propylene for carbon source; under the protection of argon and hydrogen, carry out the chemical vapour deposition (CVD) of Graphene when 750 degrees Celsius, deposited, in conductive line surfaces, the grapheme material that thickness is 100 microns.As wire, the monofilament of this graphene coated nickel conductive core is used for conductive test, and after graphene coated, the more original nickel wire cable of resistivity of this cable declines 13%, and unit cross-sectional area current capacity improves 7 times；
Embodiment 3
Using the nickel wire line of diameter 0.1 millimeter as metallic conduction inner core; put it in CVD reactor; with methane for carbon source; under the protection of argon and hydrogen, carry out the chemical vapour deposition (CVD) of Graphene when 1200 degrees Celsius, deposited, in conductive line surfaces, the grapheme material that thickness is 1 micron.As wire, the monofilament of this graphene coated nickel conductive core is used for conductive test, and after graphene coated, the more original nickel wire cable of resistivity of this cable declines 7%, and unit cross-sectional area current capacity improves 3 times.
Embodiment 4
Using the copper conductor of diameter 3 millimeters as metallic conduction inner core; put it in CVD reactor; with propane for carbon source; the chemical vapour deposition (CVD) of Graphene is carried out when 1000 degrees Celsius, at the grapheme material that copper conductor superficial growth thickness is 10 nanometers under the protection of argon and hydrogen.This compound wire monofilament is directly used in conductive test, and the energy-saving wire resistivity of this graphene coated metal inside relatively original copper wire reduces by 15%.Unit cross-sectional area current capacity improves 9 times.
Embodiment 5
Using the metallic copper wire of diameter 0.1 millimeter as metallic conduction inner core; put it in CVD reactor; with methane for carbon source; under the protection of argon and hydrogen, carry out the chemical vapour deposition (CVD) of Graphene when 1150 degrees Celsius, deposited, in conductive line surfaces, the grapheme material that thickness is 5 nanometers.25 graphene coated metallic copper arrangements of conductors being formed composite cable and is used for conductive test, after graphene coated, the resistivity of this composite cable relatively original copper cable declines 8%, and unit cross-sectional area current capacity improves 3 times；
Embodiment 6
Using the metallic copper wire of diameter 2.5 millimeters as metallic conduction inner core; put it in CVD reactor; with methane, ethane equal-volume than mixing gas for carbon source; under the protection of argon and hydrogen, carry out the chemical vapour deposition (CVD) of Graphene when 900 degrees Celsius, deposited, in conductive line surfaces, the grapheme material that thickness is 2 nanometers.As wire, the monofilament of this graphene coated copper conductive core is used for conductive test, and after graphene coated, the resistivity of this cable relatively original copper cable declines 8%, and unit cross-sectional area current capacity improves 7 times；
Embodiment 7
Using the metallic copper wire of diameter 5 millimeters as metallic conduction inner core; put it in CVD reactor; with propylene for carbon source; under the protection of argon and hydrogen, carry out the chemical vapour deposition (CVD) of Graphene when 650 degrees Celsius, deposited, in conductive line surfaces, the grapheme material that thickness is 2 microns.As wire, the monofilament of this graphene coated copper conductive core is used for conductive test, and after graphene coated, the resistivity of this cable relatively original copper cable declines 12%, and unit cross-sectional area current capacity improves 2 times；
Embodiment 8
Using the metallic steel wire of diameter 1.5 millimeters as metallic conduction inner core; put it in CVD reactor; with ethylene for carbon source; carry out the chemical vapour deposition (CVD) of Graphene under the protection of argon and hydrogen when 700 degrees Celsius, deposited thickness in conductive line surfaces is 1 micron thick grapheme material.8 these type of arrangements of conductors being formed cable and is used for conductive test, after graphene coated, the more original steel wire cable of resistivity of this cable declines 25%, and unit cross-sectional area current capacity improves 15 times.
Embodiment 9
Using the metallic steel wire of diameter 3 millimeters as metallic conduction inner core; put it in CVD reactor; with hexamethylene for carbon source; under the protection of argon and hydrogen, carry out the chemical vapour deposition (CVD) of Graphene when 1000 degrees Celsius, deposited, in conductive line surfaces, the grapheme material that thickness is 1 nanometer.As wire, the monofilament of this graphene coated steel conductive core is used for conductive test, and after graphene coated, the more original steel wire cable of resistivity of this cable declines 7%, and unit cross-sectional area current capacity improves 3 times.
Embodiment 10
Using the metallic aluminium wire of diameter 0.5 millimeter as metallic conduction inner core; put it in CVD reactor; with the mixing gas of acetylene and propylene volume ratio 2:1 for carbon source; under the protection of argon and hydrogen, carry out the chemical vapour deposition (CVD) of Graphene when 660 degrees Celsius, deposited the grapheme material that thickness is 100 microns on aluminum conductor surface.15 these type of arrangements of conductors being formed cable and is used for conductive test, after graphene coated, the resistivity of this cable relatively original aluminum cable declines 18%, and unit cross-sectional area current capacity improves 23 times.
Embodiment 11
Using the metallic aluminium wire of diameter 1 millimeter as metallic conduction inner core; put it in CVD reactor; with hexamethylene and xylene mass than 1:1 mixture for carbon source; under the protection of argon and hydrogen, carry out the chemical vapour deposition (CVD) of Graphene when 601 degrees Celsius, deposited the grapheme material that thickness is 1 micron on aluminum conductor surface.This wire monofilament is used for conductive test, and after graphene coated, the resistivity of this cable relatively original aluminum cable declines 14%, and unit cross-sectional area current capacity improves 1.8 times.
Embodiment 12
Using the metallic iron wire of diameter 2 millimeters as metallic conduction inner core; put it in CVD reactor; with dimethylbenzene for carbon source; under the protection of argon and hydrogen, carry out the chemical vapour deposition (CVD) of Graphene when 800 degrees Celsius, deposited, in ferrum conductive line surfaces, the grapheme material that thickness is 100 nanometers.6 these type of arrangements of conductors being formed cable and is used for conductive test, after graphene coated, the more original iron wire cable of resistivity of this cable declines 12%, and unit cross-sectional area current capacity improves 10 times.
Embodiment 13
Using the metallic iron wire of diameter 2 millimeters as metallic conduction inner core; put it in CVD reactor; with methane for carbon source; under the protection of argon and hydrogen, carry out the chemical vapour deposition (CVD) of Graphene when 1100 degrees Celsius, deposited, in ferrum conductive line surfaces, the grapheme material that thickness is 10 nanometers.This wire monofilament is used for conductive test, and after graphene coated, the more original iron wire cable of resistivity of this cable declines 7%, and unit cross-sectional area current capacity improves 3.7 times.
Embodiment 14
Using the metallic steel core aluminum stranded wire of diameter 10 millimeters as metallic conduction inner core; put it in CVD reactor; with acetylene for carbon source; under the protection of argon and hydrogen, carry out the chemical vapour deposition (CVD) of Graphene when 630 degrees Celsius, deposited, on metallic steel core aluminum stranded wire surface, the grapheme material that thickness is 50 microns.After graphene coated, the more original steel-cored aluminium strand cable of resistivity of this cable declines 6%, and unit cross-sectional area current capacity improves 2 times.
Embodiment 15
Using the metal steel core coppered wire of diameter 1 millimeter as metallic conduction inner core; put it in CVD reactor; with ethylene for carbon source; under the protection of argon and hydrogen, carry out the chemical vapour deposition (CVD) of Graphene when 900 degrees Celsius, deposited, on metal steel core coppered wire surface, the grapheme material that thickness is 50 nanometers.After graphene coated, the more original steel core coppered wire cable of resistivity of this cable declines 9%, and unit cross-sectional area current capacity improves 1.4 times.
Embodiment 16
Using the metallic copper wire of diameter 0.1 millimeter as metallic conduction inner core; put it in CVD reactor; with methane for carbon source; under the protection of argon and hydrogen, carry out the chemical vapour deposition (CVD) of Graphene when 1100 degrees Celsius, deposited the grapheme material that thickness is 1 nanometer on copper conductor surface.Using the metallic iron wire of diameter 0.1 millimeter as metallic conduction inner core; put it in CVD reactor; with methane for carbon source; under the protection of argon and hydrogen, carry out the chemical vapour deposition (CVD) of Graphene when 1100 degrees Celsius, deposited, in ferrum conductive line surfaces, the grapheme material that thickness is 5 nanometers.25 graphene coated metallic copper wires and 25 graphene coated metallic iron wires being formed composite cable and be used for conductive test, after graphene coated, the resistivity of this cable relatively original copper cable declines 5%, and unit cross-sectional area current capacity improves 2 times.
Claims (3)
1. the preparation method of the energy-conservation plain conductor of a graphene coated; it is characterized in that; grapheme material clad is prepared at plain conductor outer surface by the method for chemical vapour deposition (CVD); naked plain conductor is put in reactor; add carbon source, under the protection of argon and hydrogen growth temperature at 601 DEG C-1200 DEG C when carry out the chemical vapour deposition (CVD) of Graphene, obtain the thickness of graphene layer between 1 nanometer to 1 millimeter between；Wherein plain conductor is made up of the monofilament of graphene coated metal inside, or is formed composite cable structure by the combination of monofilaments of graphene coated metal inside.
2. the preparation method of the energy-conservation plain conductor of a kind of graphene coated according to claim 1, it is characterised in that the material of described plain conductor is copper, aluminum, ferrum, steel, nickel or its two or more composite.
3. the preparation method of the energy-conservation plain conductor of a kind of graphene coated according to claim 1, it is characterised in that described carbon source is methane, ethane, propane, ethylene, propylene, acetylene, hexamethylene, dimethylbenzene or its two or more mixture.
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| CN106057288A (en) * | 2016-07-22 | 2016-10-26 | 汉舟四川铜铝复合科技有限公司 | Good conductive copper aluminum compound socket |
| CN106884154A (en) * | 2016-12-30 | 2017-06-23 | 常州碳星科技有限公司 | A kind of application of Graphene |
| CN106927705A (en) * | 2017-02-13 | 2017-07-07 | 东南大学 | A kind of method in copper facing steel fiber surface controllable growth graphene coated film |
| CN107873103A (en) * | 2016-07-26 | 2018-04-03 | 海成帝爱斯株式会社 | Graphene line, cable and its manufacture method using graphene line |
| CN109119191A (en) * | 2018-08-30 | 2019-01-01 | 姚恽 | A kind of energy-saving wire of high conductivity |
| CN109411145A (en) * | 2017-08-18 | 2019-03-01 | 河南烯碳合成材料有限公司 | The Combined cable of containing graphene |
| CN109659082A (en) * | 2019-01-16 | 2019-04-19 | 深圳天元羲王材料科技有限公司 | A kind of graphene composite cable and preparation method thereof |
| CN111218814A (en) * | 2018-11-26 | 2020-06-02 | 南开大学 | Graphene-metal wire composite fiber and preparation method thereof |
| CN112768139A (en) * | 2020-12-29 | 2021-05-07 | 国家高速列车青岛技术创新中心 | High-conductivity aluminum wire cable core and preparation method thereof |
| CN114898915A (en) * | 2022-05-31 | 2022-08-12 | 四川华丰科技股份有限公司 | Circuit wire, manufacturing method of circuit wire and connector |
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| CN105957629A (en) * | 2016-07-13 | 2016-09-21 | 山东科虹线缆科技股份有限公司 | Nano graphene medium voltage power cable and manufacturing method thereof |
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| CN107873103A (en) * | 2016-07-26 | 2018-04-03 | 海成帝爱斯株式会社 | Graphene line, cable and its manufacture method using graphene line |
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| CN112768139A (en) * | 2020-12-29 | 2021-05-07 | 国家高速列车青岛技术创新中心 | High-conductivity aluminum wire cable core and preparation method thereof |
| CN114898915A (en) * | 2022-05-31 | 2022-08-12 | 四川华丰科技股份有限公司 | Circuit wire, manufacturing method of circuit wire and connector |
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Application publication date: 20160706 |