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Mine cable rubber sheath conductor shielding material

A conductor shielding and cable technology, used in conductors, insulated conductors, insulated cables, etc., can solve the problem of the large difference in polarity between nitrile rubber and ethylene propylene rubber, the interaction surface is not easy to bond, and the ozone resistance of nitrile rubber is poor. and other problems, to achieve the effects of good electrical conductivity, guaranteed electrical conductivity, and good thermal and oxygen aging resistance.

Inactive Publication Date: 2014-05-28
上海蓝昊电气江苏有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Some existing technologies use nitrile rubber as the base material in order to improve the conductivity of conductor shielding materials. However, nitrile rubber has poor ozone resistance, and it is easy to age and crack under the action of ozone and lose its shielding effect. The polarity difference of propylene rubber is large, and the interaction surfaces of the two are not easy to be tightly bonded together, so there may be an air gap, which may cause the partial discharge to fail to meet the standard

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0028] Choose 100 parts of EPDM rubber, 70 parts of imported conductive carbon black, 2 parts of dicumyl peroxide, 2 parts of TAIC, 10 parts of paraffin oil, 1 part of anti-aging agent, 1 part of flow dispersion aid, and 5 parts of colloidal graphite powder Put EPDM rubber, imported conductive carbon black, paraffin oil, anti-aging agent, flow dispersion aid, and colloidal graphite powder into the internal mixer and mix for 2~3min, lift the top bolt to sweep the material, repeat twice , and then continue mixing until the temperature shows 110°C, discharge the mixed rubber to the open mixer and turn over the bag for mixing, then do not open the strips, and put them back into the internal mixer after cooling, add dicumyl peroxide and TAIC, mix The refining time is 1~2min, and the strips are cut out on the three-roller laminator, and the finished product is put into the continuous sulfur workshop after being placed for 16 hours. During the continuous sulfur extrusion process, the ...

specific Embodiment 2

[0029] Choose 100 parts of EPDM rubber, 80 parts of imported conductive carbon black, 3 parts of dicumyl peroxide, 4 parts of TAIC, 25 parts of paraffin oil, 3 parts of anti-aging agent, 3 parts of flow dispersion aid, colloidal graphite powder 17 parts, put EPDM rubber, imported conductive carbon black, paraffin oil, anti-aging agent, flow dispersion aid, and colloidal graphite powder into the internal mixer and mix for 2~3min, lift the top bolt to sweep the material, repeat two times Then continue mixing until the temperature shows 110°C, discharge the mixed rubber to the open mixer and turn over the bag for mixing, then do not open the strips, and put them back into the internal mixer after cooling, add dicumyl peroxide and TAIC, The mixing time is 1~2min, and the strips are cut out on the three-roller laminator, and the finished products are put into the sulfur workshop after being placed for 16 hours. During the continuous sulfur extrusion process, the temperature of the ...

specific Embodiment 3

[0030] Select 100 parts of EPDM rubber, 90 parts of imported conductive carbon black, 5 parts of dicumyl peroxide, 6 parts of TAIC, 40 parts of paraffin oil, 5 parts of anti-aging agent, 5 parts of flow dispersion aid, colloidal graphite powder 30 parts, put EPDM rubber, imported conductive carbon black, paraffin oil, anti-aging agent, flow dispersion aid, colloidal graphite powder into the internal mixer and mix for 2~3min, lift the top bolt to sweep the material, repeat two times Then continue mixing until the temperature shows 110°C, discharge the mixed rubber to the open mixer and turn over the bag for mixing, then do not open the strips, and put them back into the internal mixer after cooling, add dicumyl peroxide and TAIC, The mixing time is 1~2min, and the strips are cut out on the three-roller laminator. After the finished product is placed for 16 hours, it is put into the continuous sulfur workshop. During the continuous sulfur extrusion process, the temperature of the...

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PUM

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Abstract

The invention discloses a mine cable rubber sheath conductor shielding material, which is prepared from the following raw materials in parts by weight: 100 parts of ethylene propylene diene monomer, 70 to 90 parts of imported conductive carbon black, 2 to 5 parts of cross-linking agent, 2 to 6 parts of assistant cross-linking agent, 10 to 40 parts of plasticizer, 1 to 5 parts of anti-aging agent, 1 to 5 parts of flowing dispersing aid and 5 to 30 parts of colloidal graphite powder. A high-voltage mine cable prepared from the mine cable rubber sheath conductor shielding material has the advantages of uniform conductor surface electric field, non-strippability of a conductor shielding layer and an insulating layer, high ozone resistance and high thermal aging resistance.

Description

technical field [0001] The invention relates to a mining cable rubber conductor shielding material with excellent electrical properties and good ozone resistance and thermal oxygen aging performance. Background technique [0002] With the development of the coal mine industry, more and more attention has been paid to the safety of coal mines. From the perspective of coal mine cables, it is required that high-voltage cables must have good electrical performance, and no accidents such as discharge and breakdown will occur during use. . Therefore, in addition to having safe and reliable insulating materials, cables must also have conductor shielding materials with excellent electrical properties and aging properties. [0003] The existing conductor shielding technology is generally in the form of wrapping a semi-conductive cloth tape outside the conductor, thus playing a certain uniform electric field effect, but there will always be some gaps between the insulating layer of t...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08L91/06C08K3/04C08K5/14H01B7/17
CPCC08L23/16C08K2201/001C08K2201/014C08L2201/08C08L2203/202H01B7/17C08L91/06C08K3/04C08K5/14
Inventor 钱章兴
Owner 上海蓝昊电气江苏有限公司
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