Low-smoke bittern-free highly fire-proof elastic polyolefin electric cable material

A polyolefin cable material, high flame retardant technology, applied in the direction of insulating cables, cables, circuits, etc., can solve the problems of replacement, high material hardness, and non-compliance with environmental protection requirements, and achieve low hardness, good flame retardant performance, and increased strength Effect
CN100556947CInactive Publication Date: 2009-11-04CGN DELTA (ZHONGSHAN) POLYMER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CGN DELTA (ZHONGSHAN) POLYMER CO LTD
Publication Date
2009-11-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a low-smoke, halogen-free and highly flame-retardant elastic polyolefin plastic for electric wires and cables. Ethylene-octene copolymer), with a content of 20 to 50 parts by weight; EMA elastomer (ethylene-methyl acrylate copolymer), with a content of 5 to 15 parts by weight; magnesium hydroxide or aluminum hydroxide, with a content of 30 to 70 parts by weight; Nano magnesium hydroxide has a content of 20-40 parts by weight; DCP (dicumyl peroxide) has a content of 0.1-0.6 parts by weight. The hardness of the material is ≤85 Shore A; the strength is ≥9.0MPa; the elongation is ≥150%; the flame retardancy meets the requirements of UL1581 VW-1.
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Description

technical field

[0001] The invention relates to plastics for wires and cables, in particular to a low-smoke, halogen-free, highly flame-retardant elastic polyolefin plastic polymer mixture for wires and cables. Background technique

[0002] As we all know, the conductors of wires and cables are provided with a sheath. In addition to providing the most direct protection function, this sheath should also have basic requirements such as insulation and mechanical properties. It is understood that the main components of low-smoke halogen-free cable materials currently produced and used in China are: EVA (ethylene-vinyl acetate copolymer) 60-100 parts by weight; PE (polyethylene) 0-40 parts by weight; magnesium hydroxide or hydrogen 120-170 parts by weight of aluminum oxide. Although this kind of cable material has the characteristics of low smoke and halogen-free, the hardness of the material is very high, in the range of 90-98 Shore A, and it cannot be used on flexible wires, p...

Claims

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