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Aluminum alloy buffered environment-friendly flame-retardant fireproof power cable

A flame-retardant and fire-resistant power cable technology, applied in the field of power cables, can solve the problems of poor bonding, complexity, safety and reliability not meeting the requirements, etc., and achieve the effect of improving carbonization effect and fire resistance performance

Active Publication Date: 2021-10-29
JIANGSU HENGTONG WIRE & CABLE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after adding inorganic particles to the rubber of the cable sheath, the bonding force between the rubber and the inorganic particles is poor. When the cable is repeatedly bent, the sheath layer is prone to cracks, causing the cable to lose its protective effect prematurely.
[0005] Today, the manufacture of flame-retardant and fire-resistant environmentally friendly insulated cables in my country is still in its infancy. In addition, the technical level and processing level of various domestic cable manufacturers are uneven, and the requirements for environmentally friendly flame-retardant and fire-resistant insulated cables are relatively strict. With the continuous development of flame-retardant technology, the technical level of flame-retardant and fire-resistant cables is also gradually improving, but the cost of these flame-retardant and fire-resistant cables is relatively high, the laying and use are more complicated, and their safety and reliability are far below Require

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0022] The aluminum alloy buffer layer is prepared by the following method: dispersing the filling material in deionized water to obtain a filling slurry, then impregnating the aluminum-titanium alloy in the filling slurry, taking it out and drying to obtain the aluminum alloy buffer layer.

[0023] The modified silica particles are prepared by the following method: put 50 parts by mass of silica particles with a particle size of 300-400 microns into 100 parts by mass of NaOH solution with a concentration of 0.3mol / L, and stir at a constant temperature of 85°C for 4h , washed with deionized water and dried, then put 10 parts by mass of silica particles into 100 parts by mass of toluene solution containing 10 wt% silane coupling agent KH550, stirred at 85°C for 4h, filtered, and dried to obtain modified silica particles.

[0024] Modified expandable graphite is prepared by the following preparation method: 1), take 5 parts by mass of potassium permanganate and mix with 50 parts...

Embodiment 1

[0026] The outer protective layer is a mixture of polyvinyl chloride and 3-[2-(3,5-dimethyl-2-oxocyclohexyl)-2-hydroxyethyl] glutarimide, in which polyvinyl chloride and 3 The mass ratio of -[2-(3,5-dimethyl-2-oxocyclohexyl)-2-hydroxyethyl]glutarimide was 14:1.

[0027] The flame retardant layer is composed of the following components by mass: 60 parts of methyl vinyl silicone rubber with a number average molecular weight of 600,000, 12 parts of 2,4-dichlorobenzoyl peroxide, 10 parts of polyphenylsulfone terephthalamide 5 parts, polyether ether ketone 5 parts, vinyl tris (β-methoxyethoxy) silane 5 parts, vinyl triethoxy silane 4 parts, sodium metaaluminate 5 parts, mica powder 8 parts, montmorillonite 8 parts of soil;

[0028] The foamed aluminum alloy is an aluminum-titanium alloy with a porosity of 75%; the filling material is composed of the following components by mass: 24 parts of kaolin, 12 parts of diatomaceous earth, 18 parts of aluminum hydroxide, 6 parts of modified e...

Embodiment 2

[0031] The outer protective layer is a mixture of polyvinyl chloride and 3-[2-(3,5-dimethyl-2-oxocyclohexyl)-2-hydroxyethyl] glutarimide, in which polyvinyl chloride and 3 The mass ratio of -[2-(3,5-dimethyl-2-oxocyclohexyl)-2-hydroxyethyl]glutarimide was 15:1.

[0032] The flame retardant layer is composed of the following components by mass: 65 parts of methyl vinyl silicone rubber with a number average molecular weight of 800,000, 14 parts of 2,4-dichlorobenzoyl peroxide, 12 parts of polyphenylsulfone terephthalamide 8 parts of polyether ether ketone, 6 parts of vinyl tris (β-methoxyethoxy) silane, 5 parts of vinyl triethoxy silane, 8 parts of sodium metaaluminate, 10 parts of mica powder, montmorillonite 10 parts of soil;

[0033] The foamed aluminum alloy is an aluminum-titanium alloy with a porosity of 80%; the filling material is composed of the following components by mass: 32 parts of kaolin, 14 parts of diatomaceous earth, 20 parts of aluminum hydroxide, 8 parts of ...

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Abstract

The invention provides an aluminum alloy buffered environment-friendly flame-retardant fireproof power cable. The cable sequentially comprises an outer protective layer, a flame-retardant layer, an aluminum alloy buffer layer, an inner protective layer and a conductor cable core from outside to inside, wherein the aluminum alloy buffer layer comprises a foam aluminum alloy as a matrix and a filling material filled in the foam aluminum alloy. According to the invention, a multi-layer composite structure and modified protective layer components are adopted, the bending resistance, impact resistance and flame retardance of the cable are improved, the aluminum alloy buffered environment-friendly flame-retardant fire-resistant power cable has good impact resistance and buffering performance, the flexibility of the cable can be improved, and the bending performance of the cable is improved. The aluminum alloy buffer layer can be heated to expand in a high-temperature state, so that external heat is further isolated from being conducted to a battery cell, and good heat insulation and flame retardant effects are achieved. In addition, the aluminum alloy buffered environment-friendly flame retardant fireproof power cable has the advantages of being simple in structure, good in mechanical performance, resistant to bending, good in flame retardant effect, low in cost and the like.

Description

technical field [0001] The invention relates to the technical field of power cables, in particular to an aluminum alloy buffered environment-friendly flame-retardant and fire-resistant power cable. Background technique [0002] A cable generally refers to a wire that is made of one or more mutually insulated conductors and an outer insulating layer to transmit power or information from one place to another. The most basic performance of the cable is that it can effectively transmit power, electromagnetic waves, light waves, etc., and has certain adaptability to the use environment. In order to make the cable suitable for different occasions, it must have various performances, which can be summarized as follows: the conductor in the cable should have good electrical conductivity, the optical fiber should conduct light waves well without too much loss; and the cladding material should be made of It is required to have good electrical insulation properties, such as insulation ...

Claims

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Application Information

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IPC IPC(8): H01B7/04H01B7/18H01B7/29H01B7/295H01B7/20H01B7/02H01B7/42H01B9/00
CPCH01B7/04H01B7/1875H01B7/295H01B7/20H01B7/421H01B7/292H01B7/02H01B9/00
Inventor 陆春良王国权王惠兵冯成席娇娜
Owner JIANGSU HENGTONG WIRE & CABLE TECH
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