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Anti-125 DEG C-level low smoke halogen free-flame retardant single-core cable insulation rubber for railway locomotive

A technology for insulating rubber and railway locomotives, which is applied in the field of cable insulating rubber to achieve excellent weather resistance, good adhesion, and good acid and alkali resistance.

Active Publication Date: 2010-10-06
JIANGSU JUYE CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no cable insulation rubber that meets market requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A 125°C-resistant low-smoke halogen-free flame-retardant railway locomotive single-core cable insulating rubber according to the present invention. The insulating rubber formula contains the following ingredients in parts by weight:

[0025] 100 parts of cross-linked polyolefin, 100 kg of ethylene-vinyl acetate copolymer EVA-40L-03 produced by DuPont; 2 parts of organic peroxide vulcanizing agent, 2 kg of dicumyl peroxide DCP; 1 part of sulfur assistant , is 1 kg of triallyl isocyanurate TAIC; 1 part of stabilizer is 1 kg of lead dibasic phosphite; 1 kg of anti-aging agent NR, 40 kg of talcum powder, 40 kg of nano clay, 1 kg of oxidation Zinc, 2 kg of paraffin, 2 kg of paraffin oil, 2 kg of carbon black, 15 kg of white carbon black, 1 kg of stearic acid, 1 kg of coupling agent KH550.

[0026] The specific performance indicators of the obtained cable insulating rubber are as follows:

[0027] Before aging: elongation at break 250%; tensile strength 13.1N / mm 2 ;

[002...

Embodiment 2

[0032] Another 125°C-resistant low-smoke, halogen-free, flame-retardant railway locomotive single-core cable insulating rubber, the insulating rubber formula contains the following components by weight:

[0033] 100 parts of cross-linked polyolefin, 100 kg of ethylene-vinyl acetate copolymer EVA-40L-03 produced by DuPont; 5 parts of organic peroxide vulcanizing agent, 5 kg of dicumyl peroxide DCP; 4 parts of auxiliary vulcanization agent , is 4 kg of triallyl isocyanurate TAIC; 4 parts of stabilizer is 4 kg of lead dibasic phosphite.

Embodiment 3

[0035] Another 125°C-resistant low-smoke, halogen-free, flame-retardant railway locomotive single-core cable insulating rubber, the insulating rubber formula contains the following components by weight:

[0036] 100 parts of cross-linked polyolefin, 100 kg of ethylene-vinyl acetate copolymer EVA-40L-03 produced by DuPont; 3 parts of organic peroxide vulcanizing agent, 3 kg of dicumyl peroxide DCP; 2 parts of auxiliary vulcanization agent , is 2 kg of triallyl isocyanurate TAIC; 2 parts of stabilizer is 2 kg of lead dibasic phosphite. 3 kg of anti-aging agent NR, 80 kg of talcum powder, 80 kg of nano clay, 5 kg of zinc oxide, 5 kg of paraffin, 5 kg of paraffin oil, 4 kg of carbon black, 20 kg of white carbon black, 4 kg of stearic acid, 4 kg of even Joint agent KH550.

[0037] The invention has comprehensive comprehensive performance, not only excellent insulation performance, but also excellent weather resistance, ozone resistance, heat aging resistance, acid and alkali resis...

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Abstract

The invention discloses anti-125 DEG C-level low smoke halogen free-flame retardant single-core cable insulation rubber for a railway locomotive. The insulation rubber formulation comprises the following ingredients in parts by weight: 100 parts of cross-linked polyolefin, 2-5 parts of organic peroxide vulcanizer, 1 to 4 parts of sulfur-acid agent and 1 to 4 parts of stabilizer, wherein the cross-linked polyolefin is preferably selected from ethylene-vinyl acetate copolymer EVA-40L-03 produced by DuPont, the organic peroxide vulcanizer is preferably selected from dicumyl peroxide (DCP), the sulfur-acid agent is triallyl isocyanurate (TAIC), and the stabilizer is preferably selected from dibasic lead phosphate. The invention not only has excellent insulation property, but also has excellent weather resistance, ozone resistance, heat-proof aging, acid-base resistance, fuel oil resistance, low smoke zero halogen flame retardant, environment protection, safety and long service life.

Description

technical field [0001] The invention relates to a cable insulating rubber, in particular to a 125°C-resistant low-smoke, halogen-free, flame-retardant railway locomotive single-core cable insulating rubber. Background technique [0002] Now with the development of the localization of railway locomotives, the requirements for railway cable products are increasing day by day, and the main safety performance of cables is reflected in the outer layer insulation. The performance of the rubber specified in GB7594 can no longer meet the requirements of the localization of locomotives for the temperature resistance of cables. , environmental protection and environmental protection requirements. The railway market puts forward new requirements for locomotive cables, such as higher temperature resistance, excellent aging performance, mineral fuel oil resistance, acid and alkali corrosion resistance, and long service life. At present, there is no cable insulating rubber that meets mar...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L31/04C08K13/02C08K5/14C08K3/32C08K3/34C08K3/36C08K5/3492H01B3/44
Inventor 郑标
Owner JIANGSU JUYE CABLE
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