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Halogen-free flame-retardant electric wire and cable sheath polymer material and uses thereof

A polymer material, wire and cable technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problem of unsatisfactory flame resistance, and achieve the effect of simple structure and improved efficiency

Active Publication Date: 2008-06-25
HANGZHOU JLS FLAME RETARDANTS CHEM
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  • Abstract
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Problems solved by technology

[0010] The present invention cites the flame retardant mechanism of the halogen-free expandable steel structure refractory coating (that is, the expansion carbon layer structure is formed under fire and high temperature, which produces heat insulation and flame retardant effect, so that the temperature of the protected steel structure does not exceed 500°C and Collapse), which solves the problem that the flame resistance of existing flame-resistant wires and cables is not ideal

Method used

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  • Halogen-free flame-retardant electric wire and cable sheath polymer material and uses thereof

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Embodiment 1-8

[0037] 1. Preparation of halogen-free intumescent flame retardant

[0038] Phosphorus pentoxide (P 2 o 5 Content ≥ 98%) 43.47kg, add diammonium hydrogen phosphate (ammonium dihydrogen phosphate content ≥ 95%) 36.32kg simultaneously, stir and heat, and pass 20 minutes of 1 liter / min of ammonia, and keep the ammonia pressure at 0.2Mpa. When it rises to 250°C, it becomes a viscous syrupy liquid, and when kept at 250°C for 1 hour, it becomes a white solid powder. Pass 2 liters / min of nitrogen gas under stirring, cool to 50° C., pulverize and sieve to obtain compound (III). At -5°C, add 1000kg (III) to 3m 3 In 85% ethanol, stir for 30 minutes, add 0.2 kg of benzyltriphenylphosphine hydroxide activated by pyridine, add 230 kg of nitrogen-containing triazine polymer evenly under stirring, react for 3 hours, filter, dry, and pulverize to obtain JLS- PNP11217kg. The particle diameter is about 10 μm.

[0039] 2. Configure according to the proportions in Table 1, and the order of i...

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Abstract

The invention relates to a high molecular material of the halogen-free fire retardant sheath for wire cable and the application thereof. The invention solves the problem of bad fire retardant performance of the existing flame-retardant wire cable. The high molecular material of the invention is characterized in that the material comprises the following components by weight: a) 8-50 per cent of halogen-free expansive flame retardant pretreated by coupling agent occupying 0.1-3 wt per cent of the halogen-free expansive flame retardant; b) 0.5-10 per cent of graft polymer of the polar compound; c) 5-30 per cent of inorganic padding pretreated by coupling agent occupying 0.1-3 wt per cent of the inorganic padding; and d) at least one organic polymer for the rest.

Description

Technical field [0001] The invention relates to a wire and cable protection material, specifically a halogen-free flame-resistant wire and cable sheath polymer material and its application. Background technique [0002] Flame-resistant wires and cables are currently mainly used in signal transmission cables, power and data transmission cables and control cables. It ensures that in the event of a fire, key facilities can work normally under high temperature conditions within a specified period of time, providing opportunities for personnel to escape. It also helps firefighters control the scope of the fire and extinguish the fire. [0003] Especially in places and buildings with relatively closed spaces and densely populated areas such as high-rise buildings, public venues and subway tunnels, it is necessary to ensure that some key circuits can work normally in varying times according to different requirements in a fire, generally from 30 minutes to It takes 3 hours to ensur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/04C08L23/10C08L77/00C08K9/06C08K3/00C08K3/32C08K5/17H01B7/295C08L51/00
Inventor 裘雪阳朱峰吴燕戚巧红刘金锭
Owner HANGZHOU JLS FLAME RETARDANTS CHEM
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