Semiconductive low-smoke zero-halogen flame-retardant polyolefin sheath material and preparation method thereof

A polyolefin sheath, semi-conductive technology, applied in the direction of conductive materials, conductors, circuits, etc. dispersed in non-conductive inorganic materials, can solve the problems of influence, high cost of sheath material raw materials, difficult processing, etc., and achieve excellent processing performance, production cost reduction, excellent electrical conductivity and flame retardancy
CN102863686AActive Publication Date: 2013-01-09JIANGSU DEWEI ADVANCED MATERIALS
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
JIANGSU DEWEI ADVANCED MATERIALS
Publication Date
2013-01-09

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Abstract

The invention relates to a semiconductive low-smoke zero-halogen flame-retardant polyolefin sheath material and a preparation method thereof. The semiconductive low-smoke zero-halogen flame-retardant polyolefin sheath material is made of, by weight, 60-100 parts of polyolefin resin, 40-80 parts of conductive carbon black, 20-40 parts of flame retardant, 1-5 parts of dispersing agent, 0.1-3 parts of stearate, 0.1-3 parts of silane coupling agent, 5-20 parts of lubricant, 2-8 parts of wetting agent, 3-10 parts of antioxidant and 0-3 parts of uvioresistant agent, wherein the dispersing agent is composed of oleamide, erucyl amide or mixture of the oleamide and the erucyl amide. The improved semiconductive low-smoke zero-halogen flame-retardant polyolefin sheath material special for ultrahigh-voltage cables is advantageous in comprehensive performances, especially in electricity conductivity, flame retardation performance, low cost and the like.
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Description

Technical field

[0001] The invention relates to a cable sheath material and a preparation method thereof, in particular to a semi-conductive low-smoke halogen-free flame-retardant polyolefin sheath material and a preparation method thereof. Background technique

[0002] With the rapid development of the domestic wire and cable industry, the demand for polyolefin semi-conductive sheath materials is also increasing. However, the current manufacturing technology of polyolefin semi-conductive sheath materials is not mature, and there are only a few domestic companies that can produce them. Most products rely on imports. In the manufacture of 110KV and above ultra-high voltage cables, semi-conductive polymer materials are replacing the graphite layer as the semi-conductive sheath of the cable. The outer sheath of the UHV cable is made of materials with large insulation resistance. When it is not possible to ground at multiple points continuously, the sheath will form dangerous voltag...

Claims

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