Irradiation crosslinked LSOH (low smoke halogen-free) high-flame-retardant polyolefin cable material and preparation method thereof

A polyolefin cable material, high flame retardant technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of difficulty in meeting the requirements of Class B flame retardant, poor electrical insulation performance, poor water resistance, etc., and achieve good electrical insulation. , high thermal stability, the effect of improving fluidity

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 low-smoke, halogen-free, flame-retardant polyolefin cable materials currently on the market have defects such as low flame retardancy, poor electrical insulation performance, and poor water resistance. Requirements for halogen-free flame-retardant building fabric wires

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] First select 20 parts by weight of linear low density polyethylene resin, 35 parts by weight of ethylene vinyl acetate copolymer, 45 parts by weight of ethylene ethyl acrylate copolymer, 80 parts by weight of aluminum hydroxide, 70 parts by weight of magnesium hydroxide , 3.5 parts by weight of zinc borate hydrate, 15 parts by weight of high-viscosity silicone mixture, 5 parts by weight of magnesium stearate, 15 parts by weight of phosphorus-containing halogen-free flame retardant, 0.5 parts by weight of polyethylene wax, 0.8 parts by weight The antioxidant of weight part, the crosslinking agent of 0.7 weight part.

[0040] Then, linear low density polyethylene resin, ethylene vinyl acetate copolymer, ethylene ethyl acrylate copolymer, aluminum hydroxide, magnesium hydroxide, zinc borate 3.5 hydrate, magnesium stearate, phosphorus-containing halogen-free flame retardant, The polyethylene wax, antioxidant and crosslinking agent were put together into a closed mixer at a ...

Embodiment 2

[0052] First select the linear low density polyethylene resin of 22 parts by weight, the ethylene vinyl acetate copolymer of 40 parts by weight, the ethylene ethyl acrylate copolymer of 38 parts by weight, the aluminum hydroxide of 85 parts by weight, the magnesium hydroxide of 65 parts by weight , 15 parts by weight of 3.5 zinc borate water, 17 parts by weight of high-viscosity silicone mixture, 7 parts by weight of magnesium stearate, 18 parts by weight of phosphorus-containing halogen-free flame retardant, 0.7 parts by weight of polyethylene wax, 1.0 parts by weight The antioxidant of weight part, the crosslinking agent of 0.8 weight part.

[0053] Then, linear low density polyethylene resin, ethylene vinyl acetate copolymer, ethylene ethyl acrylate copolymer, aluminum hydroxide, magnesium hydroxide, 3.5 hydrate zinc borate, magnesium stearate, phosphorus-containing halogen-free flame retardant, The polyethylene wax, antioxidant and crosslinking agent were put together into...

Embodiment 3

[0065] First select the linear low density polyethylene resin of 25 parts by weight, the ethylene vinyl acetate copolymer of 45 parts by weight, the ethylene ethyl acrylate copolymer of 30 parts by weight, the aluminum hydroxide of 90 parts by weight, the magnesium hydroxide of 60 parts by weight , 3.5 parts by weight of zinc borate hydrate, 20 parts by weight of high-viscosity silicone mixture, 8 parts by weight of magnesium stearate, 20 parts by weight of phosphorus-containing halogen-free flame retardant, 1.0 parts by weight of polyethylene wax, 1.2 parts by weight The antioxidant of weight part, the crosslinking agent of 1.0 weight part.

[0066] Then, linear low density polyethylene resin, ethylene vinyl acetate copolymer, ethylene ethyl acrylate copolymer, aluminum hydroxide, magnesium hydroxide, zinc borate 3.5 hydrate, magnesium stearate, phosphorus-containing halogen-free flame retardant, The polyethylene wax, antioxidant and crosslinking agent were put together into ...

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PUM

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Abstract

The invention relates to an irradiation crosslinked LSOH (low smoke halogen-free) high-flame-retardant polyolefin cable material and a preparation method thereof. The preparation method is characterized in that the irradiation crosslinked LSOH high-flame-retardant polyolefin cable material is prepared from linear low-density polyethylene resin, an ethylene-vinyl acetate copolymer, an ethylene-ethyl acrylate copolymer, aluminum hydroxide, magnesium hydroxide, 3.5 hydrated zinc borate, a high-viscosity organic silicon mixture, magnesium stearate, a phosphorus-containing halogen-free flame retardant, polyethylene wax, an antioxidant, a crosslinking agent, and the like through the steps of mixing the raw materials by using a closed mixing machine and then carrying out extrusion by using a six-temperature-period twin-screw extruder. An electric wire and a cable prepared by taking the irradiation crosslinked LSOH high-flame-retardant polyolefin cable material as an insulating layer not only have the advantages of good flame retardance, high light transmittance, good electrical insulation, good water resistance and the like, but also have the characteristics of high-temperature resistance level (can be used for a long time in a 105 DEG C environment), good mechanical and physical properties of insulating layers, and the like. The irradiation crosslinked LSOH high-flame-retardant polyolefin cable material can be used as a raw material of LSOH high-flame-retardant insulating layers of electric wires.

Description

technical field [0001] The invention relates to a plastic particle and a preparation method thereof. Specifically, it is a raw material and a preparation method for making a low-smoke, halogen-free, high-flame-retardant wire insulation layer. Background technique [0002] With the rapid development of my country's metallurgy, electric power, electronics, automation and information network industries, the consumption of flame-retardant wires and cables, power cables, control cables, signal cables, instrumentation cables, computer cables, etc. Dramatic increase. [0003] Most traditional flame-retardant cables use polyvinyl chloride as insulation or sheath. Although polyvinyl chloride has the characteristics of good flame retardancy, low price, and good extrusion process, because it contains halogen, it will release a large amount of hydrogen halide gas and dense smoke when it is burned in a fire, causing the "secondary hazard" of the fire, thus Increased fire damage. It ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08K13/02C08K3/22C08K3/38C08K5/54C08K5/098C08K5/375C08K5/134C08K5/3492B29B9/06B29C47/92H01B3/44H01B7/295B29C48/92
CPCB29C48/40B29C48/875
Inventor 游泳祁建强环征程
Owner WUXI JAKE PLASTIC
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