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Rail transit rubber cable sheath material, its preparation method and application

A rubber cable and rail transit technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems that cannot meet the development needs, and achieve the effects of green environmental protection operation, good thermal stability, and good oil resistance

Inactive Publication Date: 2012-02-01
浙江万马股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, a series of Chinese utility model patents with authorized announcement numbers CN201146076Y, CN201204074Y, CN2938335Y and CN201340753Y also provide some cables for rail transit. However, it can be seen that these existing technologies are all focused on changing the cable structure. It does not involve the improvement of the performance of cable materials, and cannot fundamentally solve the problems existing in existing rail transit cable materials, and cannot meet the development needs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Prepare raw material according to the proportioning of table 2 embodiment 1, and prepare rail transit rubber cable sheath material according to the following method:

[0063] First, ethylene-vinyl acetate rubber (EVM) is masticated on the open mill, and the mastication is produced in intervals, that is, after the completion of the first mastication, the empty car is cooled for 5 minutes and then masticated again. The temperature of the rollers of the open mill Not higher than 50°C, fully wrap the roll, then add silicone rubber, fully and uniformly mixed, and pack into rubber rolls as required.

[0064] First take the base rubber that has been rolled into a rubber roll, and knead it on an open mill. The kneading temperature is not higher than 100°C. After fully covering the rolls, add stabilizer zinc stearate, anti-aging agent RD, and plasticizer dioctyl sebacate Ester, flame retardant aluminum hydroxide and zinc borate, coupling agent γ-aminopropyltriethoxysilane, anti-...

Embodiment 2

[0067] Prepare raw materials according to the proportioning of table 2 embodiment 2, and prepare rail transit rubber cable sheath material according to the following method:

[0068] First, ethylene-vinyl acetate rubber (EVM) is masticated on the open mill, and the mastication is produced in intervals, that is, after the completion of the first mastication, the empty car is cooled for 5 minutes and then masticated again. The temperature of the rollers of the open mill Not higher than 50°C, fully wrap the roll, then add silicone rubber, fully and uniformly mixed, and pack into rubber rolls as required.

[0069] First take the base rubber that has been rolled into a rubber roll, and knead it on an internal mixer. The kneading temperature is not higher than 100°C. After 30 seconds, add stabilizer zinc stearate, anti-aging agent RD, plasticizer dioctyl sebacate , flame retardant aluminum hydroxide and zinc borate, coupling agent γ-aminopropyl triethoxysilane, anti-sticking agent A...

Embodiment 3

[0072] Prepare raw material according to the proportioning of table 2 embodiment 3, and prepare rail transit rubber cable sheath material as follows:

[0073] First, ethylene-vinyl acetate rubber (EVM) is masticated on the open mill, and the mastication is produced in intervals, that is, after the completion of the first mastication, the empty car is cooled for 5 minutes and then masticated again. The temperature of the rollers of the open mill Not higher than 50°C, fully wrap the roll, then add silicone rubber, fully and uniformly mixed, and pack into rubber rolls as required.

[0074] First take the base rubber that has been rolled into a rubber roll, and knead it on an internal mixer. The kneading temperature is not higher than 100°C. After 60 seconds, add stabilizer zinc stearate, anti-aging agent RD, and plasticizer dioctyl sebacate , flame retardant aluminum hydroxide and zinc borate, coupling agent γ-aminopropyl triethoxysilane, anti-sticking agent A-16 mixing, after mixi...

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Abstract

The invention belongs to the cable manufacturing field and specifically provides a heatproof low smoke halogen free flame retardant rail transit rubber cable sheath material which can resist temperature from minus 55 DEG C to 125 DEG C. The rail transit rubber cable sheath material is prepared by the following steps of: mainly selecting polar ethene-vinyl acetate rubber and nonpolar high-molecular silicone rubber materials as basic rubber, adding its corresponding vulcanization system, adding a frame retardant aluminium hydroxide and a zinc borate flame retardant, a zinc stabilizing agent, an ultralow temperature resistant sebacic acid phthalate plasticizer, a silane coupling agent and the like, so as to prepare the low smoke halogen free flame retardant rail transit rubber cable sheath material. The material provided by the invention can resist ultralow temperature of minus 55 DEG C for a long time, can also resist high temperature of 125 DEG C, can resist mineral oil and fuel oil, and has good flame retardance. The material provided by the invention accords with the requirement of the ultralow temperature resistant rail transit controlling cable and can bring convenience for rail transit locomotive cable users.

Description

technical field [0001] The invention belongs to the field of cable manufacturing, and in particular relates to a rubber cable sheath material for a low-smoke, halogen-free, flame-retardant rail transit with a temperature resistance of -55°C to 125°C, a preparation method and application thereof. Background technique [0002] Low-smoke, halogen-free, flame-retardant rail traffic control cable insulation sheath cable materials, the prior art has used non-polar polymer materials such as polyethylene or polypropylene, and there are reports of cable materials using polar vinyl acetate as the base material. However, the existing cable materials are cable materials prepared from the above basic materials. The existing cable materials can withstand both low temperature -55°C and high temperature 125°C. The low temperature resistance of cable materials for fuel rail transit cannot meet the low temperature resistance requirements of customers, and the oil resistance of existing materi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L31/04C08L83/04C08K13/02C08K3/22C08K3/38C08K5/11C08K5/098C08K5/544C08K5/14C08K5/3492B29B7/28H01B3/02H01B7/17
Inventor 朱云春郑宏刘凤华丁金鑫高振军余德平
Owner 浙江万马股份有限公司
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