Flexible mineral insulating fireproof cable

A mineral insulated and fireproof cable technology, applied in the direction of insulated cables, insulators, insulated conductors, etc., can solve the problems of tear resistance, wear resistance and compression performance that cannot meet the needs, and achieve significant smoke suppression effect and thermal stability Good, high safety performance

Inactive Publication Date: 2017-09-12
安徽省无为县经纬电缆附件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the defects in reliability, production and laying of rigid mineral insulated cables, rigid mineral insulated cables are gradually withdrawn from the market in developed countries in Europe and the United States. Flexible mineral insulated fireproof cables have become mainstream cable products in the field of fire protection, but flexible mineral insulated fireproof cables The tear resistance, wear resistance and compression resistance of the cable can not meet the demand, and it needs to be solved urgently

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A flexible mineral insulated fireproof cable proposed by the present invention includes: a cable core and a sheath layer coated on the outside of the cable core. The raw materials of the sheath layer include: 90 parts of base material, 2.2 parts of vulcanization system, vinyl end 2 parts of base polydimethylsiloxane, 40 parts of composite filler, 1.5 parts of dibutyltin dilaurate, 1 part of epoxy butyl oleate, 2 parts of petroleum phenyl sulfonate, 1 part of dipentaerythritol ester, 0.9 parts of magnesium stearate, 0.15 parts of zinc stearate, 1 part of antioxidant 1076, 2,2'-thiobis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid ester] 0.15 parts, 2 parts of diester of thiodipropionate.

Embodiment 2

[0018] A flexible mineral insulated fireproof cable proposed by the present invention includes: a cable core and a sheath layer coated on the outside of the cable core, and the raw materials of the sheath layer include: 80 parts of base material, 2.9 parts of vulcanization system, vinyl end 1 part of base polydimethylsiloxane, 70 parts of composite filler, 0.5 part of dibutyltin dilaurate, 3 parts of epoxy butyl oleate, 1 part of petroleum phenyl sulfonate, 2 parts of dipentaerythritol ester, 0.4 parts of magnesium stearate, 0.78 parts of zinc stearate, 0.4 parts of antioxidant 1076, 2,2'-thiobis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid ester] 0.75 parts, 1 part of diester of thiodipropionate.

[0019] The base material includes by weight: 25 parts of polyethylene, 50 parts of ethylene vinyl acetate, and 10 parts of polypropylene; the weight part of the vulcanization system includes: 2 parts of benzoyl peroxide, 0.4 parts of triallyl cyanurate, two 0.8 parts of eth...

Embodiment 3

[0022] A flexible mineral insulated fireproof cable proposed by the present invention includes: a cable core and a sheath layer coated on the outside of the cable core. The raw materials of the sheath layer include: 88 parts by weight of base material, 2.4 parts of vulcanization system, vinyl end 1.8 parts of base polydimethylsiloxane, 50 parts of composite filler, 1.2 parts of dibutyltin dilaurate, 1.5 parts of epoxy butyl cottonseed oleate, 1.8 parts of petroleum phenyl sulfonate, 1.3 parts of dipentaerythritol ester, 0.7 parts of magnesium stearate, 0.22 parts of zinc stearate, 0.9 parts of antioxidant 1076, 2,2'-thiobis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid ester] 0.45 parts, 1.8 parts of thiodipropionate diester.

[0023] The base material includes by weight: 45 parts of polyethylene, 30 parts of ethylene vinyl acetate, and 18 parts of polypropylene; the weight part of the vulcanization system includes: 1 part of benzoyl peroxide, 0.8 parts of triallyl cyanu...

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PUM

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Abstract

The invention discloses a flexible mineral insulating fireproof cable. The flexible mineral insulating fireproof cable comprises a cable core and a sheath layer which wraps the outer side of the cable core. The sheath layer comprises the following raw materials in parts by weight: a base material 80-90 parts, a vulcanization system 2.2-2.9 parts, vinyl-terminated polydimethylsiloxane 1-2 parts, a composite filling material 40-70 parts, dibutyl tin dilaurate 0.5-1.5 parts, epoxy cotton seed butyl oleate 1-3 parts, phenyl petroleum sulfonate 1-2 parts, bis(pentaerythritolester) 1-2 parts, magnesium stearate 0.4-0.9 part, zinc stearate 0.15-0.78 part, an antioxidant 1076 0.4-1 part, 2,2'-thio bis[3-(3,5-di-t-butyl-4-hydroxy phenyl) propionate] 0.15-0.75 part, and diester thiodipropionate 1-2 parts. The flexible mineral insulating fireproof cable is good in thermal stability and excellent in tearing resistance, abrasion resistance and compression resistance, and is quite good in ageing resistance in an extreme environment, high in safety performance and long in shelf life.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a flexible mineral insulated fireproof cable. Background technique [0002] With the continuous development of society, while the social wealth is increasing, the risk of fire is also increasing, and the danger of fire is also increasing. According to statistics, the average annual fire loss in my country in the 1970s was less than 250 million yuan, and the average annual fire loss in the 1980s was less than 320 million yuan. In the 1990s, especially since 1993, the direct property losses caused by fires have risen to an average of more than one billion yuan per year. According to China's fire statistics, in 2016, 395,000 fires were reported across the country, 1,817 people were killed, 1,493 people were injured, and the direct property loss reached 4.39 billion yuan. From the statistical data, electrical fires accounted for 36.9% of the fires, resulting in 58.6% of economic los...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08L23/12C08L83/07C08K13/06C08K9/04C08K3/26C08K9/02C08K3/32C08K5/14C08K5/3492C08K5/17C08K5/098C08K5/134C08K5/372C08K5/375H01B3/44H01B7/04H01B7/17H01B7/18H01B7/28H01B7/29H01B7/295
CPCC08L23/0853C08K2003/265C08K2003/323C08K2201/014C08L23/06C08L2201/02C08L2201/08C08L2203/202C08L2205/02C08L2205/035H01B3/44H01B3/441H01B7/04H01B7/17H01B7/18H01B7/28H01B7/29H01B7/295C08L23/12C08L83/04C08K13/06C08K9/08C08K3/26C08K3/32C08K5/14C08K5/3492C08K5/17C08K5/098C08K5/1345C08K5/372C08K5/375C08K9/02
Inventor 夏泽坤夏江涛李莉
Owner 安徽省无为县经纬电缆附件有限公司
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