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High-tenacity power cable sheathing compound

A technology for power cables and sheathing materials, used in rubber insulators, organic insulators, etc., can solve the problems of sheathing material toughness, thermal stability can not meet the demand, brittle fracture, etc., to improve thermal stability and mechanical properties, crystallinity. Good shape, good emulsifying effect

Inactive Publication Date: 2017-02-01
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 toughness proposed by the present invention, its raw materials include by weight: 10 parts of natural rubber, 40 parts of isoprene rubber, 25 parts of hydrogenated nitrile rubber, 2 parts of talcum powder, 0.4 part of rapeseed oil, 5 parts of epoxidized soybean oil, 25 parts of modified composite emulsion, 2.5 parts of tetraethylenepentamine, 0.8 parts of dicumyl peroxide, 2.5 parts of phenyltrichlorosilane, 2 parts of maleic anhydride, orthosilicic acid 2 parts of methyl ester, 25 parts of titanium dioxide, 30 parts of clay, 25 parts of sepiolite powder, 20 parts of attapulgite, 3 parts of asbestos.

Embodiment 2

[0017] A power cable sheath material with good toughness proposed by the present invention, its raw materials include by weight: 25 parts of natural rubber, 20 parts of isoprene rubber, 65 parts of hydrogenated nitrile rubber, 1 part of talcum powder, 1 part of rapeseed oil, 2 parts of epoxidized soybean oil, 35 parts of modified composite emulsion, 1.5 parts of tetraethylenepentamine, 1.2 parts of dicumyl peroxide, 1.5 parts of phenyltrichlorosilane, 4 parts of maleic anhydride, orthosilicic acid 1 part of methyl ester, 45 parts of titanium dioxide, 20 parts of clay, 45 parts of sepiolite powder, 10 parts of attapulgite, and 9 parts of asbestos.

[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 the reaction, filter, wash,...

Embodiment 3

[0020] A kind of good toughness power cable sheathing material proposed by the present invention, its raw material comprises by weight: 15 parts of natural rubber, 35 parts of isoprene rubber, 30 parts of hydrogenated nitrile rubber, 1.8 parts of talcum powder, 0.6 part of rapeseed oil, 4 parts of epoxidized soybean oil, 28 parts of modified composite emulsion, 2.2 parts of tetraethylenepentamine, 0.9 parts of dicumyl peroxide, 2 parts of phenyltrichlorosilane, 2.5 parts of maleic anhydride, orthosilicic acid 1.7 parts of methyl ester, 30 parts of titanium dioxide, 28 parts of clay, 30 parts of sepiolite powder, 18 parts of attapulgite, and 5 parts of asbestos.

[0021] The modified composite emulsion is prepared by the following process: mix 15 parts of calcium hydroxide and 35 parts of water in parts by weight, add 9 parts of sodium carboxymethylcellulose and 2 parts of potassium chloride, mix and stir evenly, and heat up to 100 ℃, in a closed state, pass carbon dioxide gas ...

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PUM

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Abstract

The invention discloses a high-tenacity power cable sheathing compound. The high-tenacity power cable sheathing compound is prepared from the following raw materials in parts by weight: 10 to 25 parts of natural rubber, 20 to 40 parts of isoprene rubber, 25 to 65 parts of hydrogenated butadiene-acrylonitrile rubber, 1 to 2 parts of talcum powder, 0.4 to 1 part of colleseed oil, 2 to 5 parts of epoxidized soybean oil, 25 to 35 parts of modified composite emulsion, 1.5 to 2.5 parts of tetraethylenepentamine, 0.8 to 1.2 parts of dicumyl peroxide, 1.5 to 2.5 parts of phenyl trichlorosilane, 2 to 4 parts of maleic anhydride, 1 to 2 parts of tetramethyl orthosilicate, 25 to 45 parts of titanium dioxide, 20 to 30 parts of clay, 25 to 45 parts of sepiolite powder, 10 to 20 parts of attapulgite and 3 to 9 parts of asbestos. The power cable sheathing compound is high in tenacity, excellent in heat stability performance and good in mechanical property, and the brittle failure phenomenon of a product can be effectively avoided.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a power cable sheathing material with good toughness. 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 in the b...

Claims

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Application Information

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IPC IPC(8): C08L15/00C08L9/00C08L7/00C08L91/00C08K13/04C08K5/17C08K5/14C08K5/54C08K5/5415C08K3/22C08K3/34C08K7/12H01B3/28
CPCC08L15/005C08L9/00C08L2201/08C08L2203/202C08L2205/035H01B3/28C08L7/00C08L91/00C08K13/04C08K5/17C08K5/14C08K5/54C08K5/5415C08K2003/2241C08K3/346C08K7/12
Inventor 李正祥赵欣泰张玉湘张永刚吴月林
Owner ANHUI LAND GRP
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