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Insulation material for medium voltage rubber insulation cable

A technology for insulating cables and insulating materials, which can be applied to insulators, circuits, electrical components, etc., and can solve problems such as inability to prepare high-flexible medium-voltage cables.

Active Publication Date: 2009-07-15
SHANGHAI KAIBO SPECIAL CABLE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the technical problem that the existing technology cannot prepare high-flexible medium-voltage cables, especially to solve the technical problem of preparing a cable whose bending diameter is 6 times the outer diameter of the cable, the present invention proposes an insulating material for high-flexible medium-voltage rubber insulated cables

Method used

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  • Insulation material for medium voltage rubber insulation cable
  • Insulation material for medium voltage rubber insulation cable
  • Insulation material for medium voltage rubber insulation cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1: The raw material components of insulating material and shielding material are as follows:

[0014]

[0015] Among them, EPDM is a product of the Dutch National Mining Company (DSM), and the brand name is Keltan 2470. The conductive carbon black is VXC-72 produced by Cabot Corporation (CABOT). The calcined clay is Translink 37, a calcined and surface-treated clay produced by ENGELHARD. Antiaging agent is 2,2,4-trimethyl-1,2-dihydroquinoline (RD). The organic peroxide is dicumyl peroxide (DCP) and the coupling agent is vinyl tris(methoxyethoxy)silane (A-172). The wax is paraffin. The processing oil was SUNPAR 2280 produced by Sunoco.

[0016] The preparation method is as follows: first put EPDM rubber and anti-aging agent into the banbury mixer, after banburying for 3 minutes, add calcined clay (insulating material) or conductive carbon black (shielding material), then add wax and processing oil, continue banburying for 2 minutes, then add Coupling a...

Embodiment 2

[0019] Embodiment 2: insulating material and shielding material raw material components are as follows:

[0020]

[0021]

[0022] Among them, EPDM is the product of JSR Company, and the grade is EP21. The conductive carbon black is BP2000 produced by Cabot Corporation (CABOT). The calcined clay is Translink 77, a calcined and surface-treated clay produced by ENGELHARD. Antiaging agent is 1,2-mercaptobenzimidazole (MB). The organic peroxide is dicumyl peroxide (DCP). The coupling agent is vinyltrimethoxysilane (A-171). The wax is polyethylene wax. The processing oil was SUNPAR 2280 produced by Sunoco.

[0023] The preparation method is as follows: first put EPDM rubber and anti-aging agent into the two-roller open mill, add calcined clay (insulation material) or conductive carbon black (shielding material) after wrapping the rolls, then add wax and processing oil, after the powder is finished, Add coupling agent, then add organic peroxide, thin pass 8 times, then r...

Embodiment 3

[0026] Embodiment 3: insulating material and shielding material raw material components are as follows:

[0027]

[0028]

[0029] Among them, EPDM is the product of ExxonMobil Company, and the brand name is Vistalon 1703P. Conductive carbon black is N220 from Tianjin Carbon Black Factory. Calcined clay is domestic calcined and surface treated clay Glc. Antiaging agent is 1,2-mercaptobenzimidazole (MB). The organic peroxide is dicumyl peroxide (DCP) and the coupling agent is vinyl tris(methoxyethoxy)silane (A-172). The wax is paraffin. The processing oil was SUNPAR 2280 produced by Sunoco.

[0030] The preparation method is as follows: the formula components are assembled in corresponding hoppers, and the continuous mixing twin-screw granulator is used for dispersing and granulating.

[0031] After pressing the processed insulating material and shielding material into a test piece, after heat vulcanization at 160℃×40min, the performance is measured as follows:

[0...

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Abstract

The invention relates to the technical field of insulating and conducting composite materials, in particular to an insulating material for high-flexibility and medium-voltage rubber insulated cables. Calculated by the mass of the components, the components are: 100 parts of EPDM rubber, 50-100 parts of calcined clay, 1-3 parts of anti-aging agent, 2-4 parts of organic peroxide, and 1-2 parts of coupling agent , 2 to 8 parts of wax, and 5 to 20 parts of processing oil. The invention overcomes the technical problem that the prior art cannot prepare high-flexible medium-voltage cables, especially solves the technical problem that the bending diameter of the cable is 6 times the outer diameter of the cable.

Description

technical field [0001] The invention relates to the technical field of insulating and conducting composite materials, in particular to an insulating material for high-flexibility and medium-voltage rubber insulated cables. Background technique [0002] Medium voltage rubber insulated cables are a commonly used product, such as IEC60502 and IEC92-354, etc. have relevant regulations on medium voltage rubber insulated cables. It has a wide range of uses, including land, water, civilian and military uses. Ethylene-propylene rubber has a wide service temperature, which can maintain its performance at 150°C, and is still flexible at -40°C. The temperature resistance level is usually 105°C, and the emergency is 140°C, which means that the carrying capacity can be increased by 7 to 8%. . Ethylene-propylene rubber has excellent electrical properties, its dielectric constant and dielectric loss tangent are very small, it has outstanding water resistance and corona resistance, and st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B3/00
Inventor 曾纪刚刘旌平陈佶民
Owner SHANGHAI KAIBO SPECIAL CABLE FACTORY
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