Low-smoke, halogen-free and flame-retardant cable material used for coal mine, and preparation method thereof

A flame-retardant cable material and coal mine technology, applied in the direction of plastic/resin/wax insulators, organic insulators, etc., can solve the problems of uneven particle size of samples, increase processing costs, and dyeing of materials, so as to reduce the amount of smoke generated, Improve the effect of flame retardancy and excellent mechanical properties

Inactive Publication Date: 2014-10-08
HUAIBEI TIANXIANG CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the wide particle size distribution of molybdenum trioxide and zinc borate, the particle size of the sample is not uniform, so it is necessary to improve the compatibility with other material components through mechanical treatment, which not only increases the processing cost to a certain extent, but also because the trioxide Molybdenum and zinc borate have a staining effect on the material and also increase the cost of raw materials

Method used

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  • Low-smoke, halogen-free and flame-retardant cable material used for coal mine, and preparation method thereof
  • Low-smoke, halogen-free and flame-retardant cable material used for coal mine, and preparation method thereof
  • Low-smoke, halogen-free and flame-retardant cable material used for coal mine, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A low-smoke halogen-free flame-retardant cable material used in coal mines, the formula is as follows:

[0049]

[0050] Weigh 400 grams of EVA, 300 grams of HDPE and other ingredients according to the formula in the above table, and make a 1mm test piece according to the steps of drying, surface treatment, banburying, discharging, opening, discharging, and tableting.

Embodiment 2

[0052] A low-smoke halogen-free flame-retardant cable material used in coal mines, the formula is as follows:

[0053]

[0054] Weigh 400 grams of EVA, 300 grams of HDPE and other ingredients according to the formula in the above table, and make a 1mm test piece according to the steps of drying, surface treatment, banburying, discharging, opening, discharging, and tableting.

Embodiment 3

[0056] A low-smoke halogen-free flame-retardant cable material used in coal mines, the formula is as follows:

[0057]

[0058] Weigh 25kg of EVA, 18.75kg of HDPE and other additives of appropriate weight according to the formula in the above table, and make a 1mm test piece according to the steps of drying, surface treatment, banburying, discharging, kneading, discharging, and tableting.

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Abstract

The invention discloses a low-smoke, halogen-free and flame-retardant cable material used for a coal mine. The low-smoke, halogen-free and flame-retardant cable material is prepared from the following raw materials by weight: 100 parts of a ethylene-vinyl acetate copolymer, 75 parts of high density polyethylene, 10-20 parts of a smoke-suppressing agent, 20-40 parts of a compatilizer, 250-300 parts of a flame retardant, 5-15 parts of flame-retardant aid, 7-10 parts of a processing aid, 3-6 parts of an oxidant and 3-6 parts of a surfactant. The invention also discloses a preparation method of the cable material. Ammonium octamolybdate is used as the smoke-suppressing agent, is relatively uniform in particle size and has relatively good compatibility. Magnesium hydroxide, aluminium hydroxide and red phosphorus are co-used as the flame retardant, thereby greatly increasing a flame-retardant effect of a system and reducing smoke production of the system.

Description

technical field [0001] The invention relates to the field of cables, in particular to a cable material used in coal mines, and also relates to a preparation method of the cable material. Background technique [0002] At present, cables for coal mines at home and abroad have been widely produced, and the materials used are mainly polyvinyl chloride and other high molecular polymer materials that generate a large amount of smoke during combustion and produce harmful gases to the human body. In addition to natural disasters, the strength of the cable insulation sheath material is low, and it is repeatedly bent and broken during use, causing a short circuit and causing a fire. Due to the burning of the cable material, a large amount of smoke is generated, which greatly reduces the visibility of personnel, causing the on-site personnel to have no time to escape. Statistics have shown that most of the casualties caused by fires are caused by inhalation of smoke, and the resulting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06H01B3/44C08K13/06C08K9/00C08K3/22C08K3/24C08K3/02B29C35/02
CPCC08L23/0853B29C35/02C08L2201/02C08L2201/22C08L2203/202C08L2205/03C08L2207/062H01B3/441
Inventor 郑志刚牛飞
Owner HUAIBEI TIANXIANG CABLE
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