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Heat-insulating fire-proof cable material and preparation method thereof

A technology of fireproof cables and raw materials, applied in the direction of circuits, electrical components, plastic/resin/wax insulators, etc., can solve problems such as life safety and property damage, failure to achieve heat insulation and fire prevention, and personnel health hazards, achieving high safety , excellent performance, uniform properties

Inactive Publication Date: 2018-10-23
ZHONGSHAN LVLANG ADDITIVES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the polymer insulation materials used in wires and cables are flammable materials, cables often burn due to various factors such as cable overheating, short circuit, and external fire during power transmission, causing damage to life safety and property
[0003] Traditional flame retardant cables mainly use polymers and flame retardants to obtain good flame retardant properties through mixing, but the cable materials prepared in the prior art still cannot meet the standards of heat insulation and fire prevention, and fires will still cause the cables to burn, and The flame retardant materials in the prior art mostly use halogen-containing fireproof materials. During the burning process of cables, a large amount of toxic smoke and corrosive gases will cause suffocation and poisoning, which will cause great harm to personnel health and seriously pollute the environment.

Method used

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  • Heat-insulating fire-proof cable material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Preparation of flame retardant polyether:

[0031] Add inorganic fluoride, polyether, catalyst, and polytetrafluoroethylene with a mass ratio of 1-2:0.5-0.8:1.4-2.3:1.5-3 in a closed reactor. In non-oxygen conditions, the temperature is 500-700 Under the reaction conditions of ℃, pressure 70-90Mpa, and voltage 1.5-23,000 volts, mixing and stirring for 1-3 hours, the flame-retardant polyether is obtained.

Embodiment 2

[0033] Heat insulation and fireproof cable material preparation:

[0034] Specifically include the following steps:

[0035] (1) Weigh 60Kg polyvinyl chloride, 10Kg hydroxide, 15Kg expandable graphite, 10Kg flame-retardant polyether, 2Kg plasticizer, 5Kg toughening agent, 3Kg antioxidant, and set aside;

[0036] (2) Weigh the hydroxide, expandable graphite, and flame-retardant polyether in step (1) and add them to a high-speed mixer in order to stir. The temperature is controlled at 60°C and the time is 5 minutes to obtain a uniform mixture;

[0037] (3) Add the polyvinyl chloride, plasticizer, toughening agent, and antioxidant weighed in step (1) to the homogeneous mixture prepared in step (2) and continue stirring at a high speed. The temperature is controlled at 100°C. Time 15min;

[0038] (4) Add the product in step (3) to a twin-screw extruder to plasticize, extrude and granulate, pass through a vibrating screen, and then cool and pack.

Embodiment 3

[0040] Heat insulation and fireproof cable material preparation:

[0041] Specifically include the following steps:

[0042] (1) Weigh 70Kg polyvinyl chloride, 15Kg hydroxide, 17Kg expandable graphite, 15Kg flame-retardant polyether, 3Kg plasticizer, 6Kg toughening agent, 5Kg antioxidant, and set aside;

[0043] (2) Weigh the hydroxide, expandable graphite, and flame-retardant polyether in step (1) and add them to a high-speed mixer in order to stir. The temperature is controlled at 70°C and the time is 4 minutes to obtain a uniform mixture;

[0044] (3) Add the polyvinyl chloride, plasticizer, toughening agent, and antioxidant weighed in step (1) to the homogeneous mixture prepared in step (2) in sequence and continue stirring at a high speed. The temperature is controlled at 120°C. Time 12min;

[0045] (4) Add the product in step (3) to a twin-screw extruder to plasticize, extrude and granulate, pass through a vibrating screen, and then cool and pack.

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Abstract

The invention discloses a heat-insulating fire-proof cable material and a preparation method thereof. The heat-insulating fire-proof cable material is prepared from the following raw materials in parts by mass: 60-80 parts of polyvinyl chloride, 10-20 parts of hydroxide, 15-20 parts of expansible graphite, 10-20 parts of flame retarding polyether, 2-5 parts of a plasticizer, 5-7 parts of a flexibilizer, and 3-6 parts of an antioxidant. The disclosed heat-insulating fire-proof cable material has excellent physical and mechanical properties, and has good flame retardant property; importantly, the preparation method is simple, industrial production is easy, and high industrial production value and good industry development prospect are achieved.

Description

technical field [0001] The invention relates to the technical field of wire and cable materials, in particular to a heat-insulating and fire-proof cable material and a preparation method thereof. Background technique [0002] Power supply has become an indispensable part of the rapid development of the world economy, and wires and cables, as the carrier of power supply, pervade all walks of life. Because the polymer insulation materials used in wires and cables are flammable materials, cables often burn due to various factors such as cable overheating, short circuit, and external fire during power transmission, causing damage to life safety and property. [0003] Traditional flame retardant cables mainly use polymers and flame retardants to obtain good flame retardant properties through mixing, but the cable materials prepared in the prior art still cannot meet the standards of heat insulation and fire prevention, and fires will still cause the cables to burn, and Most of t...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L71/00C08L91/00C08L23/16C08L53/02C08L51/04C08K7/24C08K3/22H01B3/44
CPCC08K2003/2224C08K2003/2227C08L27/06C08L2201/02C08L2203/202C08L2205/035H01B3/443C08L71/00C08L91/00C08L23/16C08L53/02C08L51/04C08K7/24C08K3/22
Inventor 孙公民李宗科魏胜利
Owner ZHONGSHAN LVLANG ADDITIVES CO LTD
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