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Low-smoke, zero-halogen and flame-retardant multi-core controlled cable sheath rubber for railway vehicles

A technology for rail vehicles and control cables, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of easy expansion of wire core insulating rubber, easy thinning of wire cores, affecting production quality, etc. Excellent performance, anti-aging ability and anti-fatigue ability

Active Publication Date: 2011-12-21
JIANGSU JUYE CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Generally, it is used as the outer sheath layer of the core of the multi-core cable to protect the insulating core. The mechanical and physical properties, environmental resistance, aging resistance, flame retardant and fire resistance have high performance requirements. Traditional sheaths mostly use chlorosulfonated polyolefin mixtures. However, with the localization of locomotives and the requirements for low-smoke, halogen-free and flame-retardant environmental protection, traditional materials are no longer suitable. According to the requirements of railway products, multi-core cable insulation sheaths must use halogen-free flame-retardant cross-linked polyolefin mixture. However, after the insulated wire core is vulcanized and formed, it needs to be vulcanized again when it is extruded from the sheath, that is, it needs to go through secondary vulcanization. Thin or even sticky, seriously affecting product quality

Method used

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  • Low-smoke, zero-halogen and flame-retardant multi-core controlled cable sheath rubber for railway vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A multi-core control cable sheath rubber for low-smoke, halogen-free, flame-retardant rail vehicles according to the present invention, the sheath rubber mainly includes the following components by weight:

[0035] Cross-linked polyolefin 100 parts

[0036] 3 parts of organic peroxide vulcanizing agent

[0037] 2 parts of auxiliary sulfur agent

[0038] Anti-aging agent 3 parts

[0039] Flame retardant 15 parts

[0040] Reinforcing agent 8 parts

[0041] Talcum powder 50 parts

[0042] Nano clay 60 parts

[0043] 3 parts zinc oxide

[0044] 3 parts paraffin

[0045] 8 parts paraffin oil

[0046] White carbon black 20 parts

[0047] 3 parts zinc stearate

[0048] 3 parts of coupling agent KH550.

[0049] Among them, the cross-linked polyolefin is preferably ethylene ethyl acetate EVM700 produced by DuPont Company, the organic peroxide curing agent is preferably dicumyl peroxide DCP, the sulfur assistant is triallyl isocyanuric acid ester TAIC, and the anti-agi...

Embodiment 2

[0056] Yet another low-smoke, halogen-free, flame-retardant rail vehicle sheath rubber for multi-core control cables according to the present invention, the sheath rubber mainly includes the following components by weight:

[0057] Cross-linked polyolefin 100 parts

[0058] Organic peroxide vulcanizing agent 5 parts

[0059] 4 parts of auxiliary sulfur agent

[0060] Anti-aging agent 5 parts

[0061] Flame retardant 20 parts

[0062] Strengthening agent 10 parts

[0063] Among them, the cross-linked polyolefin is preferably ethylene ethyl acetate EVM700 produced by DuPont Company, the organic peroxide curing agent is preferably dicumyl peroxide DCP, the sulfur assistant is triallyl isocyanuric acid ester TAIC, and the anti-aging agent is preferably anti-aging Agent XH-3, the flame retardant is preferably zinc borate, and the reinforcing agent is preferably N550 carbon black.

Embodiment 3

[0065] Yet another low-smoke, halogen-free, flame-retardant rail vehicle sheath rubber for multi-core control cables according to the present invention, the sheath rubber mainly includes the following components by weight:

[0066] Cross-linked polyolefin 100 parts

[0067] Organic peroxide vulcanizing agent 2 parts

[0068] 1 part of auxiliary sulfur agent

[0069] Anti-aging agent 1 part

[0070] Flame retardant 10 parts

[0071] Reinforcing agent 3 parts

[0072] Talcum powder 60 parts

[0073] Nano clay 40 parts

[0074] Zinc oxide 5 parts

[0075] 2 parts paraffin

[0076] 10 parts paraffin oil

[0077] White carbon black 15 parts

[0078] Zinc stearate 4 parts

[0079] 4 parts of coupling agent KH550.

[0080] Among them, the cross-linked polyolefin is preferably ethylene ethyl acetate EVM700 produced by DuPont Company, the organic peroxide curing agent is preferably dicumyl peroxide DCP, the sulfur assistant is triallyl isocyanuric acid ester TAIC, and the an...

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Abstract

The invention discloses a low-smoke, zero-halogen and flame-retardant multi-core controlled cable sheath rubber for railway vehicles, comprising the following components by weight: 100 parts of crosslinked polyolefin, 2-5 parts of peroxide vulcanizing agent, 1-4 parts of auxiliary vulcanizing agent, 1-5 parts of age resister, 10-20 parts of flame retardant and 3-10 parts of reinforcing agent, wherein the ethylene-vinyl acetate EVM700 produced by the DuPont Company is preferably selected as the crosslinked polyolefin. The cable sheath rubber is fast in sulfuring, short in vulcanizing time and low vulcanizing temperature, has good mechanical and physical performances and is environment-resistant, age-resistant, flame retardant and fireproof.

Description

technical field [0001] The invention relates to a cable sheath rubber, in particular to a multi-core control cable sheath rubber for low-smoke, halogen-free, flame-retardant rail vehicles. Background technique [0002] Generally, it is used as the outer sheath layer of the core of the multi-core cable to protect the insulating core. The mechanical and physical properties, environmental resistance, aging resistance, flame retardant and fire resistance have high performance requirements. Traditional sheaths mostly use chlorosulfonated polyolefin mixtures. However, with the localization of locomotives and the requirements for low-smoke, halogen-free and flame-retardant environmental protection, traditional materials are no longer suitable. According to the requirements of railway products, multi-core cable insulation sheaths must use halogen-free flame-retardant cross-linked polyolefin mixture. However, after the insulated wire core is vulcanized and formed, it needs to be vulc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L31/04C08L23/08C08K13/02C08K5/14C08K3/38C08K3/04C08K3/34C08K3/36H01B7/295H01B3/44
Inventor 郑标
Owner JIANGSU JUYE CABLE
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