Low-smoke halogen-free fireproof cable

A fire-resistant cable and cable core technology, applied in the direction of insulating cables, cables, circuits, etc., can solve the problems of environmental secondary pollution, improve fire resistance and corrosion resistance, improve elasticity and compression resistance, improve mechanical properties and The effect of antibacterial activity

Inactive Publication Date: 2020-04-17
湖南华菱线缆股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such flame retardants will release a large amount of hydrogen halide and smoke when they are burned or processed, causing secondary pollution to the environment, and are gradually banned.

Method used

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  • Low-smoke halogen-free fireproof cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as figure 1 As shown, it is a low-smoke, halogen-free, fire-resistant cable provided in this embodiment, which includes a low-smoke, halogen-free, flame-retardant polyolefin layer 1, a non-woven fabric tape 2, a glass fiber tape 3, and an insulating filling layer 4 from outside to inside. , five cable core units 5; each cable core unit 5 includes ceramic polyolefin insulation layer 5-1, mica tape insulation layer 5-2, phenylenediamine modified graphene oxide layer 5-3 and Conductor 5-4. Wherein, the mica tape insulating layer 5-2 is composed of a layer of 0.10mm mica tape 5-2, the overlap rate of the glass fiber tape 3 to the insulating filling layer 4 is 10%, and the insulating filling layer 4 is an inorganic rope.

[0043] Wherein, the preparation method of the low-smoke halogen-free flame-retardant polyolefin layer comprises the following steps:

[0044] 1) Stir and mix 5 parts by weight of BASF flame retardant, 30 parts of 1,3,5-triazine, 10 parts of pentaery...

Embodiment 2

[0054] Such as figure 2 As shown, it is a low-smoke, halogen-free, fire-resistant cable provided in this embodiment, which includes a low-smoke, halogen-free, flame-retardant polyolefin layer 1, a non-woven fabric tape 2, a glass fiber tape 3, and an insulating filling layer 4 from outside to inside. , four cable core units 5; each cable core unit 5 includes ceramic polyolefin insulation layer 5-1, mica tape insulation layer 5-2, phenylenediamine modified graphene oxide layer 5-3 and Conductor 5-4. Wherein, the mica tape insulation layer 5-2 is made of two layers of mica tape——mica tape 5-21 and mica tape 5-22, the thickness of the two layers of mica tape is 0.12mm and 0.15mm respectively, and the glass fiber tape has an effect on the insulating filling layer. The covering rate is 12%, and the insulating filling layer is glass fiber rope.

[0055] Wherein, the preparation method of the low-smoke halogen-free flame-retardant polyolefin layer comprises the following steps:

...

Embodiment 3

[0066] Such as image 3 As shown, it is a low-smoke, halogen-free, fire-resistant cable provided in this embodiment, which includes a low-smoke, halogen-free, flame-retardant polyolefin layer 1, a non-woven fabric tape 2, a glass fiber tape 3, and an insulating filling layer 4 from outside to inside. , five cable core units 5; each cable core unit 5 includes ceramic polyolefin insulation layer 5-1, mica tape insulation layer 5-2, phenylenediamine modified graphene oxide layer 5-3 and Conductor 5-4. Wherein, the mica tape insulating layer 5-2 is made of two layers of mica tape—mica tape 5-21 and mica tape 5-22, the thickness of the two layers of mica tape is 0.20mm respectively, and the glass fiber tape 3 pairs of insulating filling layer 4 The overlapping rate is 15%, and the insulating filling layer 4 is an inorganic rope.

[0067] Wherein, the preparation method of the low-smoke halogen-free flame-retardant polyolefin layer comprises the following steps:

[0068] 1) Stir ...

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Abstract

The invention provides a low-smoke halogen-free fireproof cable. The low-smoke halogen-free fireproof cable sequentially comprises a low-smoke halogen-free flame-retardant polyolefin layer, a non-woven fabric belt, a glass fiber belt, an insulating filling layer and a plurality of cable core units from outside to inside. The preparation method of the low-smoke halogen-free flame-retardant polyolefin layer comprises the following steps: stirring and mixing the BASF flame retardant, the 1, 3, 5-triazine, the pentaerythritol and the hindered phenol antioxidant in parts by weight; adding plant cellulose and magnetite nanoparticles into the obtained mixture, and fully stirring again; and adding polyolefin and a charring agent in parts by weight into the obtained mixture, and stirring and extruding by using a double-screw extruder to obtain the low-smoke halogen-free flame-retardant polyolefin layer. The low-smoke halogen-free fireproof cable has good flame retardant property, corrosion resistance and mechanical property, and reduces the release of toxic and harmful gases; and the plant cellulose and the magnetite nanoparticles are added to prepare the polyolefin layer so that the mechanical property, the antibacterial activity, the elasticity and the compression resistance of the cable can be improved.

Description

technical field [0001] The invention belongs to the technical field of cables, and in particular relates to a low-smoke, halogen-free fireproof cable. Background technique [0002] With the development of modern science and technology, energy and information are indispensable resources, and the transmission of electric energy and information is inseparable from cables, but unsafe cables are also one of the important ways to spread fire. According to incomplete statistics, accidents caused by cables in fires account for about 35%, and about one-third of the deaths are caused by asphyxiation due to inhalation of toxic gases released when cables burn. Therefore, it is a problem that the cable industry must face to prevent cables from burning and to prevent the release of toxic and harmful corrosive gases and dense smoke. [0003] The choice of protective layer materials for traditional flame-retardant cables is mainly to use halogen-containing materials such as flame-retardant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/02H01B7/18H01B7/28H01B7/29H01B7/295C08L23/00C08L1/02C08K13/02C08K5/053C08K5/134C08K3/22
CPCH01B7/29H01B7/295H01B7/2806H01B7/0225H01B7/18H01B7/28C08L23/00C08L2201/02C08L2201/22C08L1/02C08K13/02C08K5/053C08K5/1345C08K3/22
Inventor 聂磊李华斌谢刚陈彦唐幸
Owner 湖南华菱线缆股份有限公司
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