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Seawater-resistant semiconductive water stopping strapping tape and preparation method thereof

A semi-conductive and seawater-resistant technology, which is applied in the manufacture of conductive/semiconductive layer equipment, submarine cables, cable/conductor manufacturing, etc. It can solve the problem that binding tapes do not have seawater resistance, water molecules spread, and fibers are easy to age And other issues

Pending Publication Date: 2018-10-16
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

However, due to the use of non-woven fabrics as the base material, the fibers used are easy to age, and the electrical properties are easy to attenuate, and insulation points will be generated during the operation of the cable hanging net.
At the same time, due to the physical properties of the product material, the fiber is absorbent, and water molecules can easily spread on the substrate, causing the cable to continue to produce water trees.
In addition, the lashing ties currently used are not resistant to seawater, thus limiting the application of power cables in the sea

Method used

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  • Seawater-resistant semiconductive water stopping strapping tape and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] figure 1 A schematic structural diagram of the seawater-resistant semi-conductive water-stop binding tape 100 provided in this embodiment. see figure 1, This embodiment provides a seawater-resistant semiconductive water-stop binding tape 100 , including: a base material layer 101 , a first semiconductive adhesive layer 107 , a second semiconductive adhesive layer 109 and a semiconductive seawater-resistant adhesive layer 111 . Wherein, the substrate layer 101 has a first surface 103 and a second surface 105 oppositely arranged; the first semiconductive adhesive layer 107 is arranged on the first surface 103 of the substrate layer 101; the second semiconductive adhesive layer 109 is arranged on the substrate The second side 105 of the layer 101 . The semiconductive seawater resistant adhesive layer 111 is disposed above the first semiconductive adhesive layer 107 . The seawater-resistant semi-conductive water-stop binding tape 100 has good electric field shielding and...

Embodiment 2

[0055] This embodiment provides a method for preparing a seawater-resistant semi-conductive water-stop binding tape 100, which differs from the preparation method of the sea-water-resistant semi-conductive water-stop binding tape 100 provided in Example 1 in that in this embodiment:

[0056] The first semiconductive adhesive layer 107 and the second semiconductive adhesive layer 109 are mainly made from the following raw materials in parts by weight: 50 parts of textile emulsion, 12 parts of carbon black, 8 parts of dispersant, 0.8 part of wetting agent and 450 parts of water.

[0057] And, in this embodiment, in the process of disposing the first semiconductive adhesive layer 107 on the first surface 103 of the substrate layer 101, and disposing the second semiconductive adhesive layer 109 on the second surface 105 of the substrate layer 101 Among them, the linear speed of glue processing is 30m / min; and the semiconductive seawater resistant adhesive layer 111 is arranged on ...

Embodiment 3

[0060] This embodiment provides a method for preparing a seawater-resistant semi-conductive water-stop binding tape 100, which differs from the preparation method of the sea-water-resistant semi-conductive water-stop binding tape 100 provided in Example 1 in that in this embodiment:

[0061] The first semiconductive adhesive layer 107 and the second semiconductive adhesive layer 109 are mainly made from the following raw materials in parts by weight: 80 parts of textile emulsion, 15 parts of carbon black, 10 parts of dispersant, 1 part of wetting agent and 500 parts of water.

[0062] And, in this embodiment, in the process of disposing the first semiconductive adhesive layer 107 on the first surface 103 of the substrate layer 101, and disposing the second semiconductive adhesive layer 109 on the second surface 105 of the substrate layer 101 Among them, the linear speed of glue processing is 50m / min; and the semiconductive seawater resistant adhesive layer 111 is arranged on t...

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Abstract

The invention provides a seawater-resistant semiconductive water stopping strapping tape and a preparation method thereof, and relates to the technical field of power cables. The seawater-resistant semiconductive water stopping strapping tape comprises a base material layer, a first semiconductive adhesive layer, a second semiconductive adhesive layer and a semiconductive seawater-resistant adhesive layer. The base material layer is provided with a first face and a second face which are arranged oppositely; the first semiconductive adhesive layer is arranged on the first face of the base material layer, and the second semiconductive adhesive layer is arranged on the second face of the base material layer. The semiconductive seawater-resistant adhesive layer is arranged on the upper portionof the first semiconductive adhesive layer. The seawater-resistant semiconductive water stopping strapping tape and the preparation method thereof have the advantages of good performance of shieldingelectric fields and blocking water and excellent seawater-resistant performance.

Description

technical field [0001] The invention relates to the technical field of power cables, in particular to a seawater-resistant semi-conductive water-stop binding tape and a preparation method thereof. Background technique [0002] During the operation of the cable, due to the strong current of the cable core, impurities, pores in the insulating layer, thorns and damaged parts of the inner and outer shielding layers will cause water trees due to the infiltration of water, causing discharge inside the insulating layer and even breakdown of the cable. This requires a semiconducting material with water-blocking properties to buffer the electric field. Since the load change of the cable core will produce a temperature difference that causes the metal sheath to expand with heat and contract with cold, therefore, a gap must be left inside the metal sheath, but if the gap is not filled, water will seep in, resulting in a breakdown accident. This requires an elastic water-blocking mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B5/14H01B7/14H01B7/28H01B7/282H01B9/02H01B13/00H01B13/22H01B13/30
CPCH01B5/14H01B7/14H01B7/28H01B7/282H01B9/021H01B13/0026H01B13/22H01B13/30Y02A30/14
Inventor 杨宏艳俞飞
Owner 沈阳天荣电缆材料有限公司
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