Materials and methods for insulation of conducting fibres, and insulated products
AssigneeCambridge Enterprise Limited
InventorsKrzysztof K. K. Koziol, Agnieszka Ewa Lekawa-Raus, Lukasz Kurzepa, Xiaoyu Peng
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Abstract
An electrical conductor which has an electrically conducting fiber including carbon nanotubes and/or a graphene nanoribbon and a layer of insulating material coated around the electrically conducting fiber. The insulating material substantially does not penetrate the electrically conducting fiber, or penetrates the electrically conducting fiber only to a depth that leaves a continuous conductive path along a remaining part of the electrically conducting fiber.
Claims20
An electrical conductor comprising:
- an electrically conducting fibre comprising carbon nanotubes and/or graphene nanoribbon;
- and
- a layer of insulating material coated around the electrically conducting fibre, wherein the layer of insulating material is in direct contact with the carbon nanotubes and/or the graphene nanoribbon of the electrically conducting fibre, and wherein the insulating material substantially does not penetrate the electrically conducting fibre, or penetrates the electrically conducting fibre only to a depth that leaves a continuous conductive path along a remaining part of the electrically conducting fibre.
The electrical conductor according to claim lwherein the insulating material comprises a polymer, such as a rubber polymer or low density polyethylene.
An electrical or electronic device comprising one or more electrical conductors comprising:
- an electrically conducting fibre comprising carbon nanotubes and/or graphene nanoribbon;
- and
- a layer of insulating material coated around the electrically conducting fibre, wherein the layer of insulating material is in direct contact with the carbon nanotubes and/or the graphene nanoribbon of the electrically conducting fibre, and wherein the insulating material substantially does not penetrate the electrically conducting fibre, or penetrates the electrically conducting fibre only to a depth that leaves a continuous conductive path along a remaining part of the electrically conducting fibre.
A method of coating an electrically conducting fibre comprising carbon nanotubes and/or graphene nanoribbon, the method comprising
- (i) applying flowable insulating material to the electrically conducting fibre to be in direct contact with the carbon nanotubes and/or the graphene nanoribbon of the electrically conducting fibre;
- and
- (ii) solidifying said insulating material on the surface of the electrically conducting fibre to coat the fibre with a layer of insulating material, so that the layer of insulating material is in direct contact with carbon nanotubes and/or graphene nanoribbon of the electrically conducting fibre, wherein the insulating material substantially does not penetrate the electrically conducting fibre, or penetrates the electrically conducting fibre only to a depth that leaves a continuous conductive path along a remaining part of the electrically conducting fibre.
Dependencies are inferred from the claim text.