Graphene anti-stretch cable

A graphene and cable technology, which is applied to insulated cables, cables, power cables with shielding layers/conductive layers, etc., can solve the problems of difficulty in uniform dispersion of graphene, easy aggregation of nano-graphenes, unfavorable electrical conductivity, etc. To achieve the effect of good tensile strength, improved breakdown strength and long service life

Inactive Publication Date: 2019-03-12
徐州利恒电气工程有限公司
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Problems solved by technology

[0004] Chinese utility model patent, authorized notification number CN205582608U discloses a nano-graphene low-voltage power cable, which uses a nano-graphene layer on the surface of the conductor to improve the electrical conductivity, but because the conductivity of the copper conductor is not as strong as that of graphene, the electrical conductivity There is still room for improvement, and nano-graphene is easy to agglomerate, which is not conducive to the improvement of electrical conductivity; Chinese patent literature, authorized notification number CN103739929B discloses a polyolefin high semi-conductive shielding material containing graphene for cables and a preparation method thereof, which uses graphene Evenly disperse into ethylene-vinyl acetate copolymer to improve the shielding effect, but the bonding force between the inorganic material and the polymer copolymer is low, it is difficult to uniformly disperse graphene, and it is prone to permeation during use

Method used

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Embodiment 1

[0029] A graphene stretch-resistant cable, including a conductor, and the conductor is sequentially sleeved with an insulating layer, a shielding layer, a middle layer, a waterproof layer, a fireproof and high temperature resistant layer and an outer sheath from the inside to the outside;

[0030] Wherein, the shielding layer is prepared by the following method:

[0031] 1) 18ml concentrated H2SO4 and 8ml concentrated H3PO4 of 9:4 were added to a three-necked flask equipped with 2g graphene;

[0032] 2) Then add 20ml of hydrogen peroxide, and magnetic stirring treatment at room temperature for 2h;

[0033] 3), then raise the temperature to 50°C, and magnetically stir for 3 hours under ultrasonic vibration treatment;

[0034] 4), then cooled to room temperature and added 0.7g of nano-alumina, and magnetically stirred for 2 hours in an ice-water bath;

[0035] 5) After the ice-water bath treatment, centrifuge again to remove the upper liquid, then wash repeatedly 5-6 times und...

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Abstract

The invention belongs to the field of cables, and specifically relates to a graphene anti-stretch cable. The graphene anti-stretch cable comprises a conductor, wherein the conductor is sleeved with aninsulating layer, a shielding layer, a middle layer, a waterproof layer, a fireproof high temperature-resisting layer, and an outer sheath in sequence from inside to outside, and the shielding layeris made of graphene, and the fireproof high temperature-resisting layer is made of organic-inorganic composite materials. The graphene anti-stretch cable is compounded by organic and inorganic substances; with good fireproof performance, the cable is insulated in case of spontaneous combustion and an external fire disaster; and due to add of the graphene, the anti-breakdown performance of the shielding layer is improved.

Description

technical field [0001] The invention belongs to the field of cables, in particular to a graphene stretch-resistant cable. Background technique [0002] With the advancement of science and the improvement of people's living standards, electricity is more and more closely related to our lives. Wire and cable are one of the necessary supporting products when using electrical products. They play the role of transmitting electricity, transmitting information and realizing electromagnetic energy conversion. It is mainly composed of four basic structures, which are conductor, shielding layer, insulating layer and sheathing layer. [0003] At present, copper is the most commonly used conductor for power cables, but it has high cost, relatively large resistive loss and poor corrosion resistance. The material of the power cable shielding layer is mainly made by uniformly dispersing and adding conductive carbon black in the polymer, but because the conductivity of carbon black is not ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B9/02H01B7/02H01B7/17H01B7/18H01B7/282H01B7/29C08L9/06C08L15/00C08L23/12C08L23/06C08K3/00C08K3/04C08K3/22C08K3/34C08K3/26
CPCH01B9/02C08K2003/2241C08K2003/265C08K2201/001C08L9/06C08L15/005C08L23/06C08L23/12C08L2203/202C08L2205/035C08L2207/066H01B7/02H01B7/17H01B7/18H01B7/2825H01B7/29C08K3/00C08K3/04C08K3/22C08K3/34C08K3/26
Inventor 马中芳
Owner 徐州利恒电气工程有限公司
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