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Modified high-flame-retardation weather-resistant polyurethane cable material and preparing method thereof

A technology of polyurethane and high weather resistance, applied in the direction of plastic/resin/wax insulators, organic insulators, etc., can solve the problems of cable material flame retardancy, weather resistance and thermal stability, poor thermal stability of polyurethane elastomers, etc.

Active Publication Date: 2013-12-25
GUANGDONG ZHONGDE CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the thermal stability of polyurethane elastomers used in cable materials in the prior art is relatively poor, resulting in unsatisfactory flame retardancy, weather resistance and thermal stability of the prepared cable materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0090] A modified polyurethane cable compound with high flame resistance and high weather resistance, which includes the following components by weight:

[0091] 60 kg of modified polyurethane elastomer, 10 kg of ethylene-vinyl acetate copolymer, 10 kg of nitrile rubber, 10 kg of chlorinated polyethylene, 1.5 kg of antimony trioxide, 1.5 kg of calcium chloride, and 1.5 kg of diethyl ethyl phosphate kg, lubricant 1 kg, dispersant 2 kg, antioxidant 2 kg, rodent-proof masterbatch 0.2 kg, termite-proof masterbatch 0.1 kg, ultraviolet absorber 0.2 kg. The ultraviolet absorber used in this embodiment is ultraviolet absorber UV327.

[0092] The above-mentioned modified polyurethane elastomer is made of the following components by weight: 28 kg of anionic polyurethane with sulfonic acid groups and carboxylic acid groups in the side chain, 3 kg of tetra-n-butyl titanate, 63 kg of organic solvent, 5.5 kg of deionized water kg, catalyst 0.5 kg. In this embodiment, the organic solvent u...

Embodiment 2

[0101] A modified polyurethane cable compound with high flame resistance and high weather resistance, which includes the following components by weight:

[0102] 65 kg of modified polyurethane elastomer, 6 kg of ethylene-vinyl acetate copolymer, 12.5 kg of nitrile rubber, 7 kg of chlorinated polyethylene, 1 kg of antimony trioxide, 1 kg of calcium chloride, 1 kg of diethyl ethyl phosphate, 0.5 kg of lubricant, 3 kg of dispersant, 2.6 kg of antioxidant, 0.1 kg of anti-rat masterbatch, 0.2 kg of anti-termite masterbatch, 0.1 kg of ultraviolet absorber. The ultraviolet absorber used in this embodiment is ultraviolet absorber UV783.

[0103] The above-mentioned modified polyurethane elastomer is made of the following components by weight: 25 kg of anionic polyurethane with sulfonic acid groups in the side chain, 2.7 kg of tetra-n-butyl titanate, 68 kg of organic solvent, 4 kg of deionized water, and 0.3 kg of catalyst kg. In this embodiment, the organic solvent used is toluene, ...

Embodiment 3

[0112] A modified polyurethane cable compound with high flame resistance and high weather resistance, which includes the following components by weight:

[0113] Modified polyurethane elastomer 64 kg, ethylene-vinyl acetate copolymer 7.4 kg, nitrile rubber 11 kg, chlorinated polyethylene 8 kg, antimony trioxide 1.2 kg, calcium chloride 1.2 kg, ethyl diethyl phosphate 1.2 kg , 0.8 kg of lubricant, 2.5 kg of dispersant, 2.2 kg of antioxidant, 0.15 kg of anti-rat masterbatch, 0.15 kg of anti-termite masterbatch, 0.2 kg of ultraviolet absorber. The ultraviolet absorber used in this embodiment is the mixture of ultraviolet absorber UV327 and ultraviolet absorber UV783.

[0114] The above-mentioned modified polyurethane elastomer is made of the following components by weight: 29 kg of anionic polyurethane with carboxylic acid groups in the side chain, 2.4 kg of tetra-n-butyl titanate, 62 kg of organic solvent, 6 kg of deionized water, and 0.6 kg of catalyst kg. In this embodiment, t...

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Abstract

The invention relates to the technical field of cable materials, in particular to a modified high-flame-retardation weather-resistant polyurethane cable material and a preparing method thereof. The modified high-flame-retardation weather-resistant polyurethane cable material comprises modified polyurethane elastomer, ethylene-vinyl ethylene copolymer, nitrile rubber, chlorinated polyethylene, antimony trioxide, calcium chloride, ethyl phosphoric acid diethyl ester, a lubricating agent, a dispersing agent, an antioxidant, a rat-proof master batch, a termite-proof master batch and an ultraviolet light absorber. The modified polyurethane elastomer is formed by anionic polyurethane of lateral chain band sulfonic group or / and carboxylic group, tetra-n-butyl titanate, organic solvent, deionized water and a catalyst. According to the preparing method of the modified high-flame-retardation weather-resistant polyurethane cable material, as the modified polyurethane elastomer is used as the main raw material, the modified polyurethane cable material prepared by the method has high flame retardation and weather resistance.

Description

technical field [0001] The invention relates to the technical field of cable materials, in particular to a modified polyurethane cable material with high flame resistance and high weather resistance and a preparation method thereof. Background technique [0002] With the rapid development of economy, cables are widely used in communication, electric power and other fields. However, since cables are combustible substances, with the frequent occurrence of electrical fire accidents, the flame retardant problem of cables has attracted the attention of countries all over the world. When the cable burns, it releases a large amount of smoke and toxic and corrosive gas, which is a dangerous factor in a fire. It hinders people's safe evacuation and fire fighting work during a fire, causing serious loss of life and property. [0003] In recent years, there are more and more fires caused by the aging of cables. Therefore, the improvement of the weather resistance of cables has become ...

Claims

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Application Information

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IPC IPC(8): C08L75/04C08L23/08C08L9/02C08L23/28H01B3/30C08K13/02C08K3/22C08K3/16C08K5/521C08K5/098C08G18/83B29B9/06B29C47/92B29C48/40B29C48/92
CPCB29C48/92B29C2948/92704B29C48/04B29C48/40B29C2948/92895
Inventor 李志能钱科明安晓明马雄伟
Owner GUANGDONG ZHONGDE CABLE
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