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Semiconductive flame retardant belt for cables and manufacture method thereof

A semi-conductive and flame-retardant tape technology, applied in the direction of cable/conductor manufacturing, insulated cables, cables, etc., can solve the problems of reducing shielding and flame-retardant functions, high production costs, unsuitable for promotion and popularization, etc., and achieves ideal flame-retardant effects , Excellent electrical performance and strong practicability

Active Publication Date: 2011-01-19
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

[0004] At present, semi-conductive tape and flame-retardant tape are used in the cable structure to achieve the above purpose. Wound structure, the properties of the two materials affect each other, which reduces the shielding and flame retardant functions, and the production cost is high, so it is not suitable for promotion and popularization

Method used

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  • Semiconductive flame retardant belt for cables and manufacture method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Skeleton material: glass fiber cloth, unit weight: 100g / m 2 , thickness 0.08mm;

[0028] (2) Semiconducting flame-resistant adhesive: 100kg of acrylic adhesive, viscosity 4000mpa.s, commercially available; 20kg of ammonium polyphosphate, commercially available; Pentaerythritol 16kg, commercially available; Melamine 20kg; commercially available; Conductive carbon black 12kg, commercially available ; 1kg of barium sulfate, commercially available; a small amount of deionized water.

[0029] (3) Coating the above-mentioned glue solution on the glass fiber cloth in step 1 by compounding, one-sided or double-sided coating; line speed 15 m / min;

[0030] (4) drying the product material obtained in step 3 at 150°C;

[0031] (5) cutting the product material obtained in step 4;

[0032] (6) Packaging the product obtained in step 5.

Embodiment 2

[0034] (1) Skeleton material: glass fiber cloth, unit weight: 100g / m 2 , thickness 0.08mm;

[0035] (2) Semiconductive flame-resistant rubber: 100kg of acrylic adhesive, viscosity 4000mpa.s, commercially available; 50kg of magnesium hydroxide with a particle size of 1-15um, commercially available; 20kg of trichloroethyl phosphate, commercially available; conductive carbon Black 12kg, commercially available; 1kg barium sulfate, commercially available; a small amount of deionized water.

[0036] (3) Coating the above-mentioned glue solution on the glass fiber cloth in step 1 by compounding, one-sided or double-sided coating; line speed 15 m / min;

[0037] (4) drying the product material obtained in step 3 at 150°C;

[0038] (5) cutting the product material obtained in step 4;

[0039] (6) Packaging the product obtained in step 5.

[0040] Table 1: Embodiment 1, 2 performance test results

[0041]

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Abstract

The invention discloses a semiconductive flame retardant belt for cables and a manufacture method thereof. The semiconductive flame retardant belt for the cables comprises a framework and semiconductive flame retardant glue and is characterized in that the framework is fabric which has properties of strength, softness and non-hygroscopicity and is selected from one of glass fiber cloth, nylon fiber cloth and polyester fiber cloth. The manufacture method of the semiconductive flame retardant belt for cables is characterized by comprising the following process steps of: (1) manufacture of a framework material: manufacturing into the framework material according to specification requirements of a product; and (2) treatment of the semiconductive flame retardant glue outside the framework, wherein the semiconductive flame retardant glue is prepared by steps of mixing and stirring by taking a polyacrylic polymer as a main material, and the finished product is obtained by combining the semiconductive flame retardant glue with the framework through various modes of coating, impregnating, and the like, and then baking, parting off and packaging. The product of the invention has the advantages of favorable electric property, ideal flame retardant effect, simple production process, stable technical property and strong practicability.

Description

technical field [0001] The invention relates to a semiconductive flame retardant material and a manufacturing method thereof, in particular to a semiconductive flame retardant tape for cables and a manufacturing method thereof. Background technique [0002] In the production process of medium and high voltage power cables, due to the manufacturing process, there are inevitably sharp points or protrusions on the outer surface of the conductor. The electric field of these sharp points or protrusions is very high, and the high electric field will inevitably cause the sharp points or protrusions to inject space charge. The injected space charge will induce electrical or water dendration of the insulation. In order to alleviate the electric field concentration inside the cable, improve the distribution of electric field stress on the inner and outer surfaces of the insulating layer, and increase the electrical strength of the cable, it is required to add a layer of semi-conducti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/295H01B13/22
Inventor 俞飞张侠杨宏艳
Owner 沈阳天荣电缆材料有限公司