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Halogen-free flame-retardant polyolefin oxygen barrier material and preparation method thereof

A technology of olefin oxygen barrier layer and polyethylene resin, which is applied in the direction of plastic/resin/wax insulator, organic insulator, electrical components, etc., can solve the problem that the cable material cannot meet the market demand, achieve good mechanical properties, and improve the flame retardant effect , The effect of reducing the burning growth rate index

Pending Publication Date: 2021-12-03
SHANGHAI KAIBO SPECIAL CABLE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the above problems, the present invention provides in view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a halogen-free flame-retardant polyolefin oxygen barrier layer and its preparation method, which is used to solve the problem of low smoke in the prior art. Halogen-free polyolefin cable materials can not meet the market demand

Method used

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  • Halogen-free flame-retardant polyolefin oxygen barrier material and preparation method thereof
  • Halogen-free flame-retardant polyolefin oxygen barrier material and preparation method thereof
  • Halogen-free flame-retardant polyolefin oxygen barrier material and preparation method thereof

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Effect test

Embodiment 1

[0033] Parts by weight of a raw material component embodiment LSZH polyolefin material and an oxygen barrier layer of each raw material components according to the present embodiment is as follows:

[0034]

[0035]

[0036] Preparation Example in the present embodiment as follows: The components of the raw materials kneaded by the mixer, kneading temperature of 180-190 deg.] C; single screw extruder through extrusion granulation, extrusion temperature was 120-145 ℃.

Embodiment 2

[0038] Parts by weight of component and each raw material component in the halogen-free flame-retardant polyolefin embodiment an oxygen barrier material of the present embodiment is as follows:

[0039]

[0040] Preparation Example in the present embodiment as follows: The components of the raw materials kneaded by the mixer, kneading temperature of 180-190 deg.] C; single screw extruder through extrusion granulation, extrusion temperature was 120-145 ℃.

Embodiment 3

[0042] Parts by weight of component and each raw material component in the halogen-free flame-retardant polyolefin embodiment an oxygen barrier material of the present embodiment is as follows:

[0043]

[0044]

[0045] Preparation Example in the present embodiment as follows: The components of the raw materials kneaded by the mixer, kneading temperature of 180-190 deg.] C; single screw extruder through extrusion granulation, extrusion temperature was 120-145 ℃.

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Abstract

The invention provides a low-heat-release halogen-free low-smoke flame-retardant polyolefin oxygen barrier material and a preparation method thereof. The halogen-free flame-retardant polyolefin oxygen barrier layer material is prepared from the following raw material components in parts by weight: 5 to 10 parts of ethylene-vinyl acetate copolymer, 20 to 30 parts of ethylene-octylene copolymer, 5 to 10 parts of compatilizer, 2 to 3 parts of carbon black master batch, 90 to 100 parts of flame retardant, 3 to 8 parts of shell forming agent, 0.3 to 0.7 part of antioxidant, 2 to 3 parts of lubricant and 0.5 to 2 parts of organopolysiloxane coupling agent. Compared with an aluminum hydroxide flame-retardant system used by a conventional low-smoke halogen-free oxygen-barrier layer material, the flame-retardant effect of the halogen-free flame-retardant polyolefin oxygen-barrier layer material disclosed by the invention is remarkably improved; besides, the shell forming property, the heat release property, the smoke release property and the like are greatly improved, and good mechanical properties and processability can be maintained.

Description

Technical field [0001] The present invention relates to a cable, and more particularly relates to a flame retardant polyolefin material and the oxygen barrier layer halogen-free preparation. Background technique [0002] At present, my country's huge demand for rail transportation cable, while the state of rail transportation increasingly demanding retardant halogen-free cable, halogen-free flame retardant cable should meet GB18380-2008 or GB31247-2014, GB18380 in which to A beam type combustion to low voltage direct current, single and multicore double burner difficult, GB31247 control cables to the B1 level difficult. When the flame-retardant material is an oxygen barrier has improved, the cable may be difficult by a conventional structure becomes simpler. In addition to oxygen barrier materials to meet high flame retardancy requirements, its shell formation, smoke release and heat release properties, also have certain requirements. Low smoke zero halogen material on the market...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L83/04C08L23/06C08L51/06C08K3/04C08K3/22C08K3/32C08K3/34H01B3/44
CPCC08L23/0815H01B3/441C08L2201/02C08L2201/22C08L2203/202C08K2003/2224C08K2003/323C08L23/0853C08L83/04C08L23/06C08L51/06C08K3/04C08K3/22C08K3/32C08K3/346
Inventor 孙凯樊守瑞
Owner SHANGHAI KAIBO SPECIAL CABLE FACTORY