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Improved low-smoke halogen-free flame-retardant cable

A technology of flame-retardant cables and inorganic flame retardants, applied in the direction of plastic/resin/wax insulators, organic insulators, etc., can solve the problems of lower tensile strength and tear resistance, and lower cable quality, so as to improve tensile strength and tear resistance, the effect of ensuring low-smoke, halogen-free flame retardant performance

Inactive Publication Date: 2017-09-08
成都新三电线厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that a large amount of inorganic metal flame retardant is added to the insulating layer of the existing halogen-free flame-retardant cable, which greatly reduces the tensile strength and tear resistance of the cable, resulting in a decrease in the overall quality of the cable. The purpose is to Provide improved low-smoke, halogen-free, and flame-retardant cables. Through the improvement of the preparation formula, the addition of inorganic metal flame retardants is reduced, and the tensile strength and tear resistance of the cables are improved while ensuring the low-smoke, halogen-free, and flame-retardant properties of the cables. performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The invention provides an improved low-smoke halogen-free flame-retardant cable, which includes an insulating layer, and the insulating layer is made of the following components by weight:

[0032] Resin base material: 100 parts,

[0033] Maleic anhydride copolymer modified ethylene-acrylate copolymer: 3 parts,

[0034] Aluminum hydroxide: 60 parts,

[0035] Ligand type titanate coupling agent: 0.5 parts,

[0036] Antioxidant: 0.1 part,

[0037] Lubricant: 5 parts;

[0038] The resin base material is a mixed material of linear low-density polyethylene and ethylene-ethyl acrylate copolymer, and the component distribution ratio of ethylene-ethyl acrylate copolymer and linear low-density polyethylene is 1:8.

[0039] The mixture of the antioxidant tetrakis [β-(3,5-tertiary butyl-4-hydroxyphenyl) propionate] pentaerythritol ester and dodecyl alcohol ester, and the ratio of the mixture is in order is 10:1.

[0040] Described lubricant is the mixture of magnesium steara...

Embodiment 2

[0042] The invention provides an improved low-smoke halogen-free flame-retardant cable, which includes an insulating layer, and the insulating layer is made of the following components by weight:

[0043] Resin base material: 100 parts,

[0044] Maleic anhydride copolymer modified ethylene-acrylate copolymer: 8 parts,

[0045] Aluminum hydroxide: 70 parts,

[0046] Ligand type titanate coupling agent: 3 parts,

[0047] Antioxidant: 1.5 parts,

[0048] Lubricant: 10 parts;

[0049] The resin base material is a mixed material of linear low-density polyethylene and ethylene-ethyl acrylate copolymer, and the component distribution ratio of ethylene-ethyl acrylate copolymer and linear low-density polyethylene is 1:8.

[0050] The mixture of the antioxidant tetrakis [β-(3,5-tertiary butyl-4-hydroxyphenyl) propionate] pentaerythritol ester and dodecyl alcohol ester, and the ratio of the mixture is in order is 10:1.

[0051] Described lubricant is the mixture of magnesium steara...

Embodiment 3

[0053] The invention provides an improved low-smoke halogen-free flame-retardant cable, which includes an insulating layer, and the insulating layer is made of the following components by weight:

[0054] Resin base material: 100 parts,

[0055] Maleic anhydride copolymer modified ethylene-acrylate copolymer: 5 parts,

[0056] Aluminum hydroxide: 65 parts,

[0057] Ligand type titanate coupling agent: 2 parts,

[0058] Antioxidant: 0.9 parts,

[0059] Lubricant: 8 parts;

[0060] The resin base material is a mixed material of linear low-density polyethylene and ethylene-ethyl acrylate copolymer, and the component distribution ratio of ethylene-ethyl acrylate copolymer and linear low-density polyethylene is 1:8.

[0061] The mixture of the antioxidant tetrakis [β-(3,5-tertiary butyl-4-hydroxyphenyl) propionate] pentaerythritol ester and dodecyl alcohol ester, and the ratio of the mixture is in order is 10:1.

[0062] Described lubricant is the mixture of magnesium stearat...

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PUM

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Abstract

The invention discloses an improved low-smoke halogen-free flame-retardant cable which comprises an insulating layer, wherein the insulating layer comprises the following components in parts by weight: 100 parts of a resin base material, 3-8 parts of a compatilizer, 60-70 parts of an inorganic flame retardant, 0.5-3 parts of a coupling agent, 0.1-1.5 parts of an antioxidant and 5-10 parts of a lubricant. By adopting the improved low-smoke halogen-free flame-retardant cable disclosed by the invention, due to the improvement of a preparation formula, the addition amount of an inorganic metal flame retardant is reduced, and the tensile strength and the tearing resistance of the cable are improved while the low-smoke halogen-free flame-retardant properties of the cable are ensured.

Description

technical field [0001] The invention relates to a halogen-free cable, in particular to an improved low-smoke halogen-free flame-retardant cable. Background technique [0002] In recent years, it has been found that more than 80% of the causes of death in fire accidents are related to the dense smoke and toxic gases produced by materials. With the rapid development of my country's modern industry, safety and prevention measures should be more and more perfect. In many large public places, in order to avoid the secondary disaster caused by cable fire (a large amount of smoke and acid gas are produced when the cable burns), special The wires and cables used to transmit electric energy and communication signals are not only required to have flame retardant properties such as preventing flame spread when the cable and the surrounding environment catch fire, and can maintain the cable to continue to transmit electric energy and communication signals. Low smoke generation, low corro...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L83/04C08K13/02C08K3/22C08K5/134C08K5/098H01B3/44
CPCC08L23/0815C08K2003/2224C08K2003/2227C08L2201/02C08L2201/22C08L2203/202C08L2205/02C08L2205/035H01B3/441C08L23/0869C08L83/04C08K13/02C08K3/22C08K5/1345C08K5/098
Inventor 吴善同
Owner 成都新三电线厂
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