Low-smoke halogen-free coal mine electric cable material and preparation method thereof

A technology of cable materials and coal mines, which is applied in the field of low-smoke and halogen-free coal mine cable materials and its preparation, can solve the problems of cables without environmental protection and safety, no elasticity and flexibility, secondary hazards to the environment and life, etc., and achieve good resistance Combustibility, low smoke generation, and improved molecular structure

Inactive Publication Date: 2015-02-25
TEBIAN ELECTRIC APP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing coal mine cable sheaths are made of a mixture of chlorinated polyethylene and neoprene. When the sheath burns, it will not only release a large amount of toxic gas, but also produce a large amount of smoke, which will harm the environment and human life. cause secondary harm
Therefore, there are still certain problems in the safety and environmental protection of the cable sheath at present.
In addition, the cable materials used in coal mines in the prior art are usually made of thermoplastic materials or materials containing halogen components. The cable materials are relatively hard and have no elasticity and flexibility.
The cable is not environmentally friendly and safe, so it cannot be used in special occasions

Method used

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  • Low-smoke halogen-free coal mine electric cable material and preparation method thereof
  • Low-smoke halogen-free coal mine electric cable material and preparation method thereof
  • Low-smoke halogen-free coal mine electric cable material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] This embodiment provides a cable material for low-smoke and halogen-free coal mines. The raw material formula of the cable material includes:

[0067] EPDM rubber,

[0068] Ethylene-vinyl acetate rubber,

[0069] flame retardant,

[0070] Reinforcing agent,

[0071] Anti-hydrolysis agent,

[0072] peroxide crosslinker.

[0073] This embodiment also provides a method for preparing a cable material for low-smoke and halogen-free coal mines, which includes the following steps:

[0074] (1) Put the EPDM rubber into the rubber mixing equipment for mastication, and its temperature is controlled at 140°C.

[0075] (2) After blending EPDM rubber and ethylene-vinyl acetate rubber according to the formula ratio for 10 minutes, add flame retardant, reinforcing agent and anti-hydrolysis agent; the temperature is controlled at 140°C.

[0076](3) After cooling to 80-100°C, add a peroxide cross-linking agent and react for a period of time to obtain a low-smoke and halogen-free c...

Embodiment 2

[0082] This embodiment provides a cable material for low-smoke and halogen-free coal mines. The raw material formula of the cable material includes:

[0083] EPDM rubber,

[0084] Ethylene-vinyl acetate rubber,

[0085] Phosphorus nitrogen flame retardants,

[0086] Reinforcing agent carbon black,

[0087] Anti-hydrolysis agent polycarbodiimide SPKC8550-I,

[0088] Peroxide crosslinking agent bis-tert-butylperoxide dicumylbenzene F-40.

[0089] The third monomer of the EPDM rubber in the cable material is ENB type ethylene norbornene, and the ethylene content in the EPDM rubber is 50wt%. The content of vinyl acetate in the ethylene-vinyl acetate rubber in the cable material is 70wt%.

[0090] This embodiment also provides a method for preparing a cable material for low-smoke and halogen-free coal mines, which includes the following steps:

[0091] (1) Put the EPDM rubber into the rubber mixing equipment for mastication, and its temperature is controlled at 135°C.

[009...

Embodiment 3

[0097] This embodiment provides a cable material for low-smoke and halogen-free coal mines. The raw material formula of the cable material includes:

[0098] EPDM rubber,

[0099] Ethylene-vinyl acetate rubber,

[0100] Flame retardant aluminum hydroxide,

[0101] Reinforcing agent magnesium carbonate,

[0102] Anti-hydrolysis agent polycarbodiimide SPKC8550-III,

[0103] Peroxide crosslinking agent bis-tert-butyl peroxide dicumyl peroxide F40P-SP2.

[0104] The ethylene content in the EPDM rubber in the cable material is 60wt%. The vinyl acetate content in the ethylene-vinyl acetate rubber in the cable material is 80 wt%.

[0105] This embodiment also provides a method for preparing a cable material for low-smoke and halogen-free coal mines, which includes the following steps:

[0106] (1) Put the EPDM rubber into the rubber mixing equipment for mastication, and its temperature is controlled at 155°C.

[0107] (2) After blending EPDM rubber and ethylene-vinyl acetate r...

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Abstract

The present invention discloses a low-smoke halogen-free coal mine electric cable material and a preparation method thereof. The raw materials of the low-smoke halogen-free coal mine electric cable material comprise an ethylene propylene diene monomer, an ethylene-vinyl acetate rubber, a fire retardation agent, a reinforcing agent, an anti-hydrolysis agent and a peroxide cross-linking agent. The low-smoke halogen-free coal mine electric cable material of the present invention is a thermosetting electric cable material, has low smoke during burning, has advantages of high temperature-low temperature (-40-120 DEG C) resistance, cracking resistance, corrosion resistance, ozone resistance and the like, meets environmental protection requirements, and does not contain any halogen-containing components. According to the present invention, with the combination of the ethylene propylene diene monomer and the ethylene-vinyl acetate rubber, the dispersion uniformity of other materials in the electric cable material is increased, and the molecular structure is improved, such that the softness of the electric cable material is good, the conditions such as the laying under the -40 DEG C low temperature environment and the like can be met for a long time, and the oxygen index and the good fire retardation are provided; and the low-smoke halogen-free coal mine electric cable material is suitable for the underground mine or the occasion of the special work environment having high security.

Description

technical field [0001] The invention belongs to the technical field of cable materials, and in particular relates to a cable material for low-smoke and halogen-free coal mines and a preparation method thereof. Background technique [0002] The environment of cables used in coal mines is mostly in deep coal mines or open-pit coal mines, and the safety of coal mines is related to the safety of life and property. The sheaths of existing coal mine cables are mostly made of a mixture of chlorinated polyethylene and neoprene. When the sheath is burned, it will not only release a large amount of toxic gas, but also produce a large amount of smoke, which will damage the environment and human life. cause secondary hazards. Therefore, there are still certain problems in the safety and environmental protection of the cable sheath at present. In addition, the cable materials used in coal mines in the prior art are usually made of thermoplastic materials or materials containing halogen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L23/08C08K13/02C08K3/22C08K3/32C08K3/38C08K5/14C08K5/521H01B3/44H01B7/17
CPCC08L23/16C08L23/0853C08L31/04C08L2201/02C08L2201/08C08L2201/22C08L2203/202C08L2205/03H01B3/28H01B7/295C08K3/04C08K5/14C08K2003/2227C08K2003/267C08K2003/2224C08K3/346C08K5/521C08K3/36
Inventor 姚章清
Owner TEBIAN ELECTRIC APP CO LTD
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