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Seawater-resistant semi-conductive copper wire shielding tape and preparation method thereof

A copper wire shielding and semi-conductive technology, which is applied in the direction of cable/conductor manufacturing, power cables with shielding layer/conductive layer, circuits, etc. There are problems such as whether the belt has seawater resistance

Pending Publication Date: 2018-11-16
沈阳天荣电缆材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve the above problems, the previous practice is to use semi-conductive resistance water tape to buffer the electric field and prevent the infiltration of water, and use semi-conductive tape or semi-conductive shielding layer to shield the electric field, but in the past these materials can only solve the electric field buffer, water resistance and Shielding problems, and the shielding electric field and water blocking effect are poor, which cannot meet the requirements of efficient electric field shielding and water blocking
In addition, existing shielding tapes do not have seawater resistance, thus limiting the application of power cables in the sea

Method used

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  • Seawater-resistant semi-conductive copper wire shielding tape and preparation method thereof

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Effect test

Embodiment 1

[0038] figure 1 The structural schematic diagram of the seawater-resistant semiconductive copper wire shielding tape 100 provided for the embodiment of the present invention, the present embodiment provides a structural schematic diagram of a seawater resistant semiconductive copper wire shielding tape 100, including: fiber 101, metal wire 105 and Water blocking glue 109.

[0039] see again figure 1 , in this embodiment, the fiber 101 includes a plurality of fiber strips 103 arranged at intervals. The number and length of the fiber strips 103 can be selected according to requirements, which are not limited in this embodiment of the present invention.

[0040] see again figure 1, in this embodiment, the metal wire 105 includes a plurality of intersecting metal strips 107 arranged in a grid, and the plurality of intersecting metal strips 107 arranged in a grid are intersected in the fiber 101 to form a shielding tape base material. Wherein, the number of metal strips 107 can...

Embodiment 2

[0055] This embodiment provides a method for preparing a seawater-resistant semi-conductive copper wire shielding tape 100, which differs from the method provided in Embodiment 1 in that in this implementation, the water-blocking glue 109 is mainly composed of the following parts by weight: Made of raw materials: 30 parts of rubber, 12 parts of plasticizer, 15 parts of superconducting carbon black, 1.5 parts of dispersant, 15 parts of polymer water-absorbing material and 5 parts of additives.

[0056] Moreover, during the process of applying the water-blocking glue 109 on the surface of the shielding tape base material by any means of rolling, dipping, coating and spraying to obtain the product, the processing line speed is 20 m / min. Of course, in other embodiments of the present invention, the processing line speed can also be selected according to requirements, which is not limited in this embodiment of the present invention.

Embodiment 3

[0058] This embodiment provides a method for preparing a seawater-resistant semi-conductive copper wire shielding tape 100, which differs from the method provided in Embodiment 1 in that in this implementation, the water-blocking glue 109 is mainly composed of the following parts by weight: Raw materials: 50 parts of rubber, 15 parts of plasticizer, 20 parts of superconducting carbon black, 3 parts of dispersant, 50 parts of polymer water-absorbing material and 10 parts of additives.

[0059] Moreover, during the process of applying the water-blocking glue 109 on the surface of the shielding tape base material by any means of rolling, dipping, coating and spraying to obtain the product, the processing line speed is 50 m / min. Of course, in other embodiments of the present invention, the processing line speed can also be selected according to requirements, which is not limited in this embodiment of the present invention.

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Abstract

The invention provides a seawater-resistant semi-conductive copper wire shielding tape and a preparation method thereof, which relate to the technical field of power cables. The seawater-resistant semi-conductive copper wire shielding tape comprises a fiber, a metal wire and a water-blocking adhesive, wherein the fibers comprise a plurality of spaced fiber strips. The metal wire comprises a plurality of metal strips crossing and arranged in a grid mode, and a plurality of metal strips crossing and arranged in a grid mode are crossed and arranged in the fiber to form a shielding tape base material; a water-stop adhesive is compounded on the base material of the shielding tape, and is used for bonding metal wires and fibers, intersections of the metal wires arranged crosswise, and filling gaps between the metal wires and the metal wires and between the metal wires and the fibers. The seawater-resistant semi-conductive copper wire shielding tape has good shielding electric field and waterblocking performance and excellent seawater-resistant performance by coating a seawater-resistant semi-conductive resistor hydrogel layer on a substrate woven by metal wires and fibers and improvingthe composition of the seawater-resistant semi-conductive resistor hydrogel.

Description

technical field [0001] The invention relates to the technical field of power cables, in particular to a seawater-resistant semiconductive copper wire shielding tape and a preparation method thereof. Background technique [0002] When the power cable is in operation, the cable core current will generate a strong electric field. If moisture seeps into the insulation layer to form water branches, it will generate discharge inside the insulation layer and even break down the cable. This requires a semiconductive material with water-blocking properties to buffer the electric field and prevent water from seeping in. And because there may also be a gap at the contact between the insulating surface and the sheath, causing partial discharge. Therefore, a shielding layer of semi-conductive material is added on the surface of the insulating layer to ensure the uniform distribution of the electric field in the radial direction and play the role of shielding the electric field to preven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B9/02H01B7/282H01B7/28H01B13/26H01B13/22C09J153/02C09J123/22C09J109/02C09J111/00C09J123/16C09J183/04C09J11/04C09J11/06C09J11/08
CPCH01B7/2806H01B7/2825H01B9/021H01B9/024H01B13/22H01B13/2606C09J11/04C09J11/06C09J11/08C09J109/02C09J111/00C09J123/16C09J123/22C09J153/02C09J153/025C09J183/04C08L2205/03C08L2205/035C08L53/025C08L23/22C08L9/02C08L11/00C08L23/16C08L83/04C08K13/02C08K3/04
Inventor 杨宏艳俞飞
Owner 沈阳天荣电缆材料有限公司
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