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Power cable sheathing compound with good thermal stability

A power cable and thermal stability technology, which is applied in the field of cables, can solve the problems of brittle fracture, sheath material toughness, and thermal stability that cannot meet the needs, so as to achieve good crystal form, improve thermal stability and mechanical properties, and increase toughness Effect

Inactive Publication Date: 2017-02-22
ANHUI LAND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Power cables are cables used to transmit and distribute high-power electric energy in the backbone lines of power systems. They are often used in urban underground power grids, outgoing lines of power stations, internal power supplies of industrial and mining enterprises, and underwater transmission lines across rivers and seas. With the rapid development of the power cable industry, the quantity of power cable sheathing materials continues to rise, and the overall technical level of the sheathing material industry is greatly improving. The toughness and thermal stability of the existing sheathing materials cannot meet the demand, and they are prone to brittleness Disruption needs to be resolved urgently

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A power cable sheath material with good thermal stability proposed by the present invention, its raw materials include by weight: 15 parts of EPDM rubber, 20 parts of low-density polyethylene, 20 parts of hydrogenated nitrile rubber, triethylenetetramine 0.8 parts, 1 part of dicumyl peroxide, 2 parts of maleic anhydride, 1 part of phenyltrichlorosilane, 30 parts of modified composite emulsion, 0.5 parts of epoxidized linseed oil, 3 parts of chlorinated paraffin, black oil 0.1 parts of paste, 1.1 parts of methyl orthosilicate, 15 parts of silk fiber, 40 parts of lignin, 5 parts of nano silicon dioxide, 40 parts of white carbon black, and 1 part of antimony trioxide.

Embodiment 2

[0017] A power cable sheath material with good thermal stability proposed by the present invention, its raw materials include by weight: 35 parts of EPDM rubber, 5 parts of low-density polyethylene, 60 parts of hydrogenated nitrile rubber, triethylenetetramine 0.2 parts, 2 parts of dicumyl peroxide, 1 part of maleic anhydride, 2 parts of phenyltrichlorosilane, 20 parts of modified composite emulsion, 1.2 parts of epoxidized linseed oil, 1 part of chlorinated paraffin, black oil 0.6 parts of paste, 0.5 parts of methyl orthosilicate, 25 parts of silk fiber, 20 parts of lignin, 15 parts of nano silicon dioxide, 20 parts of white carbon black, and 8 parts of antimony trioxide.

[0018] The modified composite emulsion is prepared by the following process: mix calcium hydroxide and water evenly, add sodium carboxymethyl cellulose and potassium chloride and mix evenly, heat up while stirring, and inject carbon dioxide gas in a closed state until the pH of the system is Neutral, stop ...

Embodiment 3

[0020] A power cable sheathing material with good thermal stability proposed by the present invention, its raw materials include by weight: 20 parts of EPDM rubber, 15 parts of low-density polyethylene, 30 parts of hydrogenated nitrile rubber, triethylenetetramine 0.6 parts, 1.2 parts of dicumyl peroxide, 1.7 parts of maleic anhydride, 1.4 parts of phenyltrichlorosilane, 28 parts of modified composite emulsion, 0.8 parts of epoxidized linseed oil, 2.5 parts of chlorinated paraffin, black oil 0.2 parts of cream, 1 part of methyl orthosilicate, 18 parts of silk fiber, 35 parts of lignin, 8 parts of nano silicon dioxide, 35 parts of white carbon black, and 3 parts of antimony trioxide.

[0021] The modified composite emulsion is prepared by the following process: mix 10 parts of calcium hydroxide and 30 parts of water in parts by weight, add 5 parts of sodium carboxymethylcellulose and 1 part of potassium chloride, mix and stir evenly, and heat up to 95 ℃, in a closed state, pass...

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PUM

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Abstract

The invention discloses a power cable sheathing compound with good thermal stability. The raw materials of the power cable sheathing compound comprises, by weight, 15-35 parts of Ethylene Propylene Diene Monomer, 5-20 parts of low density polyethylene , 20-60 parts of hydrogenated butadiene-acrylonitrie rubber, 0.2-0.8 part of 2,5-dimethyl-2,5-di(tert-butylperoxy) hexane, 1-2 parts of dicumyl peroxide, 1-2 parts of maleic anhydride, 1-2 parts of phenyl trichlorosilane, 20-30 parts of modified composite emulsion, 0.5-1.2 parts of Epoxidized linseed oil, 1-3 parts of chlorinated paraffin, 0.1-0.6 part of black factice, 0.5-1.1 part of tetramethyl orthosilicate, 15-25 parts of silk fiber, 20-40 parts of lignin, 5-15 parts of nanosilicon dioxide, 20-40 parts of white carbon black and 1-8 parts of antimonous oxide. The power cable sheathing compound has good tenacity, excellent thermal stability and good mechanical property, and can effectively avoid phenomenon of brittle failure.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a power cable sheathing material with good thermal stability. Background technique [0002] Power cables are cables used to transmit and distribute high-power electric energy in the backbone lines of power systems. They are often used in urban underground power grids, outgoing lines of power stations, internal power supplies of industrial and mining enterprises, and underwater transmission lines across rivers and seas. With the rapid development of the power cable industry, the quantity of power cable sheathing materials continues to rise, and the overall technical level of the sheathing material industry is greatly improving. The toughness and thermal stability of the existing sheathing materials cannot meet the demand, and they are prone to brittleness The disconnection phenomenon needs to be solved urgently. Contents of the invention [0003] Based on the technical problems ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/00C08L23/16C08L23/06C08L15/00C08L51/02C08L91/06C08L89/00C08K13/02C08K5/14C08K5/1539C08K3/36C08K3/22C08F251/02C08F220/14H01B3/30H01B3/28H01B7/29
CPCC08L97/005C08F251/02C08K2201/011C08K2201/014C08L15/005C08L2201/08C08L2203/202C08L2205/02C08L2205/035C08L2205/16C08L2207/066H01B3/28H01B3/307H01B7/292C08L23/16C08L23/06C08L51/02C08L91/06C08L89/00C08K13/02C08K5/14C08K5/1539C08K3/36C08K3/2279C08F220/14
Inventor 李正祥赵欣泰张玉湘张永刚吴月林
Owner ANHUI LAND GRP
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