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Low-smoke halogen-free flame-retardant insulating rubber with rated voltage of 750V for single-core cable for railway vehicles

An insulating rubber, rated voltage technology, applied in the direction of insulated conductors, insulated cables, organic insulators, etc., can solve the problems of difficulty in improving temperature resistance, unable to fully meet market requirements, and reduced safety performance, to control the cost of rubber materials, Good adhesion and improved mechanical properties

Inactive Publication Date: 2010-12-29
JURONG GUANGDA INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of localization of locomotives, the railway market has put forward many new requirements for locomotive cables, that is, cables for rail transit vehicles, such as temperature resistance, aging performance, oil resistance, insect and ant resistance, etc. It is difficult to improve the temperature resistance. The temperature resistance level of cables used in traditional rail transit vehicles is generally below 125°C. At present, there are very few products in the market that can achieve a temperature resistance level of 150°C, or some products can meet the temperature resistance requirements of 150°C, but the aging performance and safety performance are reduced. , cannot fully meet market requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A rated voltage of 750V, 150°C grade low-smoke, halogen-free and flame-retardant railway locomotive single-core cable insulating rubber according to the present invention, 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; 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; 3 parts of anti-aging agent, 3 parts of anti-aging agent DP, 2 parts of coupling agent, 2 parts of vinyl three (β-methoxyethoxy) Silane, 15 parts of reinforcing agent is 15 kg of N550 carbon black; 40 kg of talcum powder, 40 kg of nano clay, 1 kg of zinc oxide, 2 kg of paraffin wax, 2 kg of paraffin oil, 2 kg of carbon black, and 1 kg of stearic acid.

[0037] The specific performance indicators of the obtained cable insulating rubber are as follows:

[0038] Before...

Embodiment 2

[0043] Yet another insulating rubber for single-core cables of railway locomotives with a rated voltage of 750V and a resistance to 150°C grade for low-smoke, halogen-free, and flame-retardant railway locomotives. The insulating rubber formula contains the following ingredients in parts by weight:

[0044] 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 kilograms of triallyl isocyanuric acid ester TAIC; 8 parts of anti-aging agent are 8 parts of anti-aging agent DP, 5 parts of coupling agent are 5 parts of vinyl three (beta-methoxyethoxy) Silane, 20 parts of reinforcing agent is 20 kilograms of N550 type carbon black. The properties of the obtained cable insulating rubber meet the requirements.

[0045] The comprehensive performance of the present invention is relatively comprehensive, not ...

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Abstract

The invention discloses a low-smoke halogen-free flame-retardant insulating rubber with a rated voltage of 750V for a single-core cable for railway vehicles. The insulating rubber comprises the following components by weight parts: 100 parts of cross-linked polyolefin, 1-5 parts of organic peroxide vulcanizing agents, 1-4 parts of assistant curing agents, 1-4 parts of stabilizing agents, 2-5 parts of coupling agents, 3-8 parts of age resistor and 5-20 parts of reinforcing agents, wherein the cross-linked polyolefin is preferably ethylene-vinyl acetate copolymer EVA-40L-03 produced by the Dupont Company; the organic peroxide vulcanizing agents are preferably dicumyl peroxide (DCP); the assistant curing agents are triallyl isotricaynate (TAIC); the coupling agents are preferably vinyl tri-(beta-methoxy / ethoxy) silane; the age resister is preferably age resister DP; and the reinforcing agents are preferably carbon black Type N550. A cable with a rated voltage of 750V and resistance to 150 DEG C, prepared by the insulating rubber, has favorable insulating property, excellent temperature resistance, good weatherability, ozone resistance, thermal aging resistance, acid and alkalis resistance, fuel oil resistance, low smoke, no halogen, flame retardance, environmental friendliness, safety and long service life.

Description

technical field [0001] The invention relates to a cable insulating rubber, in particular to a low-smoke, halogen-free, flame-retardant single-core cable insulating rubber for rail transit vehicles with a rated voltage of 750V and a resistance to 150°C. Background technique [0002] With the development of localization of locomotives, the railway market has put forward many new requirements for locomotive cables, that is, cables for rail transit vehicles, such as temperature resistance, aging performance, oil resistance, insect and ant resistance, etc. It is difficult to improve the temperature resistance. The temperature resistance level of cables used in traditional rail transit vehicles is generally below 125°C. At present, there are very few products in the market that can achieve a temperature resistance level of 150°C, or some products can meet the temperature resistance requirements of 150°C, but the aging performance and safety performance are reduced. , cannot fully ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08K13/02C08K5/14C08K5/5425C08K3/04C08K3/34C08K3/36H01B7/295H01B3/44
Inventor 郑标
Owner JURONG GUANGDA INDAL
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