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Carbon-nanotube covered electric wire

A technology of carbon nanotubes and coated wires, applied in the direction of carbon nanotubes, nanocarbons, circuits, etc., can solve problems such as difficulty

Inactive Publication Date: 2020-06-12
FURUKAWA ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is not easy to make CNTs into wires, and there are fewer technologies using CNTs as wires

Method used

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  • Carbon-nanotube covered electric wire
  • Carbon-nanotube covered electric wire
  • Carbon-nanotube covered electric wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～32、 comparative example 1～8

[0082] About the manufacturing method of CNT wire rod

[0083] First, the dry spinning method (Japanese Patent No. 5819888) or the method of wet spinning (Japanese Patent No. 5135620, Japanese Patent No. 5131571, Japanese Patent No. 5131571, Japanese Patent No. No. 5288359), so as to obtain a stranded wire composed of a plurality of CNT wires with an equivalent circle diameter of 5 mm.

[0084] About the method of coating the outer surface of the CNT wire with an insulating coating layer

[0085] Extrusion coating was carried out using the resins in Table 1 below to form a coating layer with an average thickness of 2.3 mm along the length direction on the outer surface of the CNT wire, thereby producing the following Table 1 used in Examples and Comparative Examples CNT-coated wires.

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PUM

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Abstract

Provided is a carbon-nanotube covered electric wire having exceptional weight reduction and heat dissipation characteristics while also having exceptional electrical conductivity comparable to a wirecomprising copper, aluminum, etc., and furthermore having exceptional adhesion between an insulating coating and a core wire. The carbon-nanotube covered electric wire comprises a carbon nanotube wirecomprising a single or a plurality of carbon nanotube assemblies configured from a plurality of carbon nanotubes, and an insulating coating layer covering the carbon nanotube wire, the arithmetic mean roughness (Ra1) in the circumferential direction of the outer surface of the carbon nanotube wire being greater than the arithmetic mean roughness (Ra2) in the circumferential direction of the outersurface of the insulating coating layer.

Description

technical field [0001] The present invention relates to a carbon nanotube-coated electric wire in which a carbon nanotube wire composed of a plurality of carbon nanotubes is coated with an insulating material. Background technique [0002] Carbon nanotubes (hereinafter, sometimes referred to as "CNT") are raw materials having various properties and are expected to be used in many fields. [0003] For example, CNT is a cylindrical body having a hexagonal lattice structure in a single layer, or a three-dimensional network structure formed by arranging multiple layers of the cylindrical body approximately coaxially. Various properties such as strength are excellent. However, it is not easy to make CNTs into wires, and there are fewer technologies using CNTs as wires. [0004] As an example of a technique using a small number of CNT wires, research is underway to use CNTs instead of metals that are embedded materials of via holes formed in multilayer wiring structures. Specif...

Claims

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Application Information

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IPC IPC(8): H01B7/00C01B32/158H01B1/04H01B7/42
CPCC01B32/158H01B1/04H01B7/421H01B7/0009
Inventor 会泽英树山崎悟志山下智畑本宪志
Owner FURUKAWA ELECTRIC CO LTD
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