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High-flame retardance polyolefin cable material and preparation method thereof

A polyolefin cable material, high flame retardant technology, used in insulated cables, cables, circuits, etc., can solve the problems of low flame retardant grade and poor flame retardant performance, achieve high flame retardant grade, improve flame retardant performance, and improve dispersion effect

Inactive Publication Date: 2013-12-18
WUXI JAKE PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the flame-retardant polyolefin cable materials currently on the market have poor flame-retardant properties and low flame-retardant grades. When the cables and wires made are used in buildings, only horizontal wiring can meet the flame-retardant requirements, and vertical wiring Can not meet the flame retardant requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] First select 30 parts by weight of linear low density polyethylene resin, 70 parts by weight of ethylene vinyl acetate copolymer resin, 45 parts by weight of halogen-containing flame retardant system, 1.5 parts by weight of flame retardant synergist, 0.3 parts by weight of antioxidant agent, the lubricant of 0.2 parts by weight.

[0027] Then, put linear low-density polyethylene resin, ethylene vinyl acetate copolymer resin, halogen-containing flame retardant system, flame retardant synergist, antioxidant, and lubricant into a closed mixer at a temperature of 155°C, and mix Refined for 10 minutes to obtain a lumpy material.

[0028] Finally, the lump material is put into a six-temperature section twin-screw extruder and extruded into pellets to obtain a high flame-retardant polyolefin cable compound. Among them, the temperatures of the six temperature sections of the six-temperature section twin-screw extruder are 140°C, 150°C, 155°C, 160°C, 160°C, and 155°C, respectiv...

Embodiment 2

[0037] First select 40 parts by weight of linear low density polyethylene resin, 60 parts by weight of ethylene vinyl acetate copolymer resin, 48 parts by weight of halogen-containing flame retardant system, 2.3 parts by weight of flame retardant synergist, 0.7 parts by weight of antioxidant agent, the lubricant of 0.3 parts by weight.

[0038] Then, put linear low-density polyethylene resin, ethylene vinyl acetate copolymer resin, halogen-containing flame retardant system, flame retardant synergist, antioxidant, and lubricant into a closed mixer at a temperature of 160°C, and mix After refining for 11 minutes, a dough-like material was obtained.

[0039] Finally, the lump material is put into a six-temperature section twin-screw extruder and extruded into pellets to obtain a high flame-retardant polyolefin cable compound. Among them, the temperatures of the six temperature sections of the six-temperature section twin-screw extruder are 140°C, 150°C, 155°C, 160°C, 160°C, and ...

Embodiment 3

[0048] First select 50 parts by weight of linear low density polyethylene resin, 50 parts by weight of ethylene vinyl acetate copolymer resin, 52 parts by weight of halogen-containing flame retardant system, 3 parts by weight of flame retardant synergist, 1 part by weight of antioxidant agent, the lubricant of 0.5 parts by weight.

[0049] Then, put linear low-density polyethylene resin, ethylene vinyl acetate copolymer resin, halogen-containing flame retardant system, flame retardant synergist, antioxidant, and lubricant into a closed mixer at a temperature of 165°C, and mix Refined for 12 minutes to obtain a lumpy material.

[0050] Finally, the lump material is put into a six-temperature section twin-screw extruder and extruded into pellets to obtain a high flame-retardant polyolefin cable compound. Among them, the temperatures of the six temperature sections of the six-temperature section twin-screw extruder are 140°C, 150°C, 155°C, 160°C, 160°C, and 155°C, respectively. ...

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Abstract

The invention relates to a high-flame retardance polyolefin cable material and a preparation method thereof, and particularly relates to polyolefin particles for manufacturing an insulating or jacket layer of a high-flame retardance electric wire and cable and a preparation method thereof. The high-flame retardance polyolefin cable material is prepared from the raw materials such as linear low-density polyethylene resin, ethylene-vinyl acetate copolymer resin, a halogen-containing flame retardant system, a flame retardant synergist, an antioxidant and a lubricant by mixing in a closed mixing mill and extruding in a six-temperature section twin-screw extruder. By adopting the high-flame retardant polyolefin cable material provided by the invention, the manufactured electric wire and cable have a high flame retardance level. When being applied to a building, the high-flame retardance polyolefin cable material can meet the flame retardance requirement no matter with horizontal wiring or vertical wiring.

Description

technical field [0001] The invention relates to a plastic particle and a preparation method thereof. Specifically, it is polyolefin particles for making high flame-retardant wire and cable insulation or sheath layer and its preparation method. Background technique [0002] In recent years, with the development of cable flame retardant technology and the strengthening of the understanding of wire and cable fire accidents, the requirements for cable flame retardant are also getting higher and higher. Traditional flame-retardant cable materials can be roughly divided into three categories: flame-retardant PVC cable materials, flame-retardant polyolefin cable materials, and flame-retardant rubber cable materials. Among them, PVC cable material has a low temperature resistance level, a large amount of smoke and a lot of acidic and toxic gases when burned, which restricts its use, especially many European countries have expressly prohibited the use of PVC wires in buildings. How...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08K13/02C08K5/3492C08K3/22C08K5/098C08K5/134C08K5/13H01B3/44H01B7/295B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/875B29C48/92B29C2948/92704B29C2948/92895
Inventor 游泳祁建强环征程
Owner WUXI JAKE PLASTIC
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