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Crosslinked halogen-free flame-retardant cable material

A technology of flame retardant cable material and inorganic flame retardant, used in plastic/resin/wax insulators, organic insulators, etc. Properties and flame retardant properties, improved dispersibility, high oxygen index effect

Inactive Publication Date: 2014-12-03
朱忠良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current halogen-free flame-retardant cable materials often use hydrates of inorganic oxides such as aluminum hydroxide and magnesium hydroxide as flame retardants. Deterioration of physical properties and deterioration of processability

Method used

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  • Crosslinked halogen-free flame-retardant cable material
  • Crosslinked halogen-free flame-retardant cable material
  • Crosslinked halogen-free flame-retardant cable material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] All ingredients were melt blended according to the following recipe:

[0025]

[0026] Specifically, the matrix resin, inorganic flame retardant, flame retardant synergist, compatibilizer and crosslinking agent are weighed in proportion, after mixing, they are added to a two-roll mill for melting and mixing, and the mixing temperature is controlled at Below 125°C, the mixing time is 5 minutes, and the tablets are ready for use.

[0027] The above-mentioned blend was molded into a tablet and vulcanized at 180°C for 15 minutes to prepare a sample; finally, the mechanical properties and oxygen index of the finished product were tested according to the national standard, and the results are shown in Table 1:

[0028] The performance data of the cable material made by table 1, embodiment 1

[0029] performance

Embodiment 2

[0031] All ingredients were melt blended according to the following recipe:

[0032]

[0033] Specifically, the matrix resin, inorganic flame retardant, flame retardant synergist, compatibilizer and crosslinking agent are weighed in proportion, after mixing, they are added to a two-roll mill for melting and mixing, and the mixing temperature is controlled at Below 125°C, the mixing time is 5 minutes, and the tablets are ready for use.

[0034] Take the above-mentioned blend and mold it into a tablet and vulcanize it at 180°C for 15 minutes to prepare a sample; finally, test the mechanical properties and oxygen index of the finished product according to the national standard, and the results are shown in Table 2:

[0035] The performance data of the cable material made by table 2, embodiment 2

[0036] performance

Embodiment 3

[0038] All ingredients were melt blended according to the following recipe:

[0039]

[0040]

[0041] Specifically, the matrix resin, inorganic flame retardant, flame retardant synergist, compatibilizer and crosslinking agent are weighed in proportion, after mixing, they are added to a two-roll mill for melting and mixing, and the mixing temperature is controlled at Below 125°C, the mixing time is 5 minutes, and the tablets are ready for use.

[0042] The above-mentioned blend was molded into a tablet and vulcanized at 180°C for 15 minutes to prepare a sample; finally, the mechanical properties and oxygen index of the finished product were tested according to the national standard, and the results are shown in Table 3:

[0043] The performance data of the cable material made by table 3, embodiment 3

[0044] performance

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PUM

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Abstract

The invention discloses a crosslinked halogen-free flame-retardant cable material which comprises linear low density polyethylene, ethylene-vinyl acetate copolymer, an inorganic flame retardant, a flame-retardant synergist, maleic anhydride grafted ethylene-vinyl acetate copolymer and a crosslinking agent. The crosslinked halogen-free flame-retardant cable material has the advantages of higher oxygen index during combustion, excellent workability, excellent mechanical properties and excellent flame retardancy.

Description

technical field [0001] The invention relates to a cable material, in particular to a cross-linked halogen-free flame-retardant cable material. Background technique [0002] Wires and cables often burn due to self-heating or external fires during the transmission of electrical energy. In order to improve the flame retardancy of wires and cables, halogen-containing flame retardants are initially added. Such wires and cables release a large amount of smoke and hydrogen halide gas during combustion, which is easy to suffocate people and cause corrosion to instruments and equipment. larger. Therefore, the development and use of low-smoke, low-halogen and halogen-free flame-retardant materials have become the development direction of cables and other fields at home and abroad. [0003] The cross-linked halogen-free flame-retardant cable material can greatly improve its environmental stress resistance and heat resistance, prolong the service life of wires and cables and improve t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L51/00C08K13/02C08K3/22C08K5/12H01B3/44
CPCC08L23/0853C08L2201/02C08L2201/22C08L2203/202C08L2205/03C08L2205/08C08L2312/00H01B3/441
Inventor 朱忠良
Owner 朱忠良
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