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An aluminum alloy buffered environmentally friendly flame-retardant fire-resistant power cable

A flame-retardant and fire-resistant power cable technology, applied in the field of power cables, can solve the problems of unsatisfactory safety and reliability, high cost of flame-retardant and fire-resistant cables, loss of protective function of cables, etc. Dispersion and suspension, the effect of increasing the absolute value of the potential

Active Publication Date: 2022-05-27
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 filler material in deionized water to obtain a filling slurry, then immersing the aluminum-titanium alloy in the filling slurry, taking 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 a NaOH solution with a concentration of 0.3 mol / L, and stir at a constant temperature of 85°C for 4 hours , washed with deionized water and dried, then put 10 parts by mass of silica particles into 100 parts by mass of a toluene solution containing 10wt% silane coupling agent KH550, stirred at 85°C for 4 hours, filtered and dried to obtain modified silica particles.

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

Embodiment 1

[0026] The outer protective layer is a mixture of polyvinyl chloride and 3-[2-(3,5-dimethyl-2-oxocyclohexyl)-2-hydroxyethyl]glutarimide, wherein 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, and 10 parts of polyphenylsulfone terephthalamide parts, 5 parts of polyether ether ketone, 5 parts of vinyl tris (β-methoxyethoxy) silane, 4 parts of vinyl triethoxy silane, 5 parts of sodium metaaluminate, 8 parts of mica powder, 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 pa...

Embodiment 2

[0031] The outer protective layer is a mixture of polyvinyl chloride and 3-[2-(3,5-dimethyl-2-oxocyclohexyl)-2-hydroxyethyl]glutarimide, wherein 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, and 12 parts of polyphenylsulfone terephthalamide parts, 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 ...

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Abstract

The invention provides an aluminum alloy buffered environment-friendly flame-retardant and fire-resistant power cable. The cable sequentially includes 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 The layer includes a foamed aluminum alloy as a matrix and a filler material filled in the foamed aluminum alloy; the invention adopts a multi-layer composite structure and a modified protective layer composition, which improves the bending resistance, impact resistance and flame retardancy of the cable , the aluminum alloy buffered environment-friendly, flame-retardant and fire-resistant power cable of the present invention not only has good shock resistance and buffer performance, but also can improve the flexibility of the cable and the bending performance of the cable, and the aluminum alloy buffer layer can expand under heat, thereby It further isolates the external heat from being transmitted to the battery core, and has good heat insulation and flame retardant effects, and the aluminum alloy buffered environmentally friendly flame retardant fire-resistant power cable of the present invention has simple structure, good mechanical properties, bending resistance, and good flame retardant effect , low cost and other advantages.

Description

technical field [0001] The invention relates to the technical field of power cables, in particular to an environmental protection, flame-retardant and fire-resistant power cable with aluminum alloy buffer. Background technique [0002] A cable generally refers to a wire made of one or more mutually insulated conductors and an outer insulating protective layer that transmits electricity or information from one place to another. The most basic performance of the cable is that it can effectively transmit electricity, electromagnetic waves, light waves, etc., and has a certain adaptability to the use environment. In order to make the cable suitable for different occasions, it must have various properties, which are summed up as follows: the conductor in the cable should have good electrical conductivity, and the optical fiber conducts light waves well and does not have much loss; It is required to have better electrical insulation properties, such as insulation resistance, diel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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