150DEG C irradiation crosslinking low-smoke halogen-free flame retardant polyolefin material for locomotive wires and its preparation

A polyolefin, wire technology, applied in the direction of organic insulators, plastic/resin/wax insulators, etc., can solve the problems of high mechanical properties, high temperature resistance, no industrialized production, unfavorable promotion and application, etc., to achieve good oil resistance, The effect of high temperature resistance and low smoke emission

Active Publication Date: 2015-04-08
SHANGHAI KAIBO SPECIAL CABLE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the temperature resistance grade of the cable materials that can be used for rolling stock in the market is generally 125°C, and the cable materials for 150°C locomotive wires have high requirements on mechanical properties and temperature resistance. At present, there is no industrial production in China, and imported raw materials are mainly used in the market. , the high cost is not conducive to popularization and application

Method used

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  • 150DEG C irradiation crosslinking low-smoke halogen-free flame retardant polyolefin material for locomotive wires and its preparation
  • 150DEG C irradiation crosslinking low-smoke halogen-free flame retardant polyolefin material for locomotive wires and its preparation
  • 150DEG C irradiation crosslinking low-smoke halogen-free flame retardant polyolefin material for locomotive wires and its preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Irradiation cross-linked low-smoke halogen-free flame-retardant polyolefin material for 150℃ locomotive line, its raw material components and proportions are as follows:

[0042]

[0043] Wherein, based on the total weight of the base resin, the ethylene-vinyl acetate copolymer accounts for 50%, the ethylene-butyl acrylate copolymer accounts for 20%, and the ethylene-methacrylate copolymer accounts for 30%. The functional polyolefin resin is maleic anhydride grafted ethylene-vinyl acetate copolymer, maleic anhydride grafted polyolefin elastomer and maleic anhydride grafted low density polyethylene. The surface modifier is a silane coupling agent. The inorganic flame retardant is magnesium hydroxide and aluminum hydroxide surface-treated with a silane coupling agent (the silane coupling agent accounts for 1.6% of the mass fraction of the inorganic flame retardant). The main antioxidant is antioxidant 1010. The auxiliary antioxidants are antioxidant DLTP and antioxid...

Embodiment 2

[0051] Irradiation cross-linked low-smoke halogen-free flame-retardant polyolefin material for 150℃ locomotive line, its raw material components and proportions are as follows:

[0052]

[0053] Among them, based on the total weight of the base resin, the ethylene-vinyl acetate copolymer accounts for 75%, the ethylene-butyl acrylate copolymer accounts for 10%, and the ethylene-methacrylate copolymer accounts for 15%. The functionalized polyolefin resin is maleic anhydride grafted ethylene-vinyl acetate copolymer and maleic anhydride grafted polyolefin elastomer. The surface modifier is a silane coupling agent. The inorganic flame retardant is magnesium hydroxide and aluminum hydroxide (silane coupling agent accounts for 2.2% of the mass fraction of the inorganic flame retardant) through silane coupling agent surface treatment. The main antioxidant is antioxidant 1010 . The auxiliary antioxidants are antioxidant DLTP and antioxidant 168. The anti-copper agent is MD1024. ...

Embodiment 3

[0057] Irradiation cross-linked low-smoke halogen-free flame-retardant polyolefin material for 150℃ locomotive line, its raw material components and proportions are as follows:

[0058]

[0059] Among them, based on the total weight of the base resin, the ethylene-vinyl acetate copolymer accounts for 60%, the ethylene-butyl acrylate copolymer accounts for 20%, and the ethylene-methacrylate copolymer accounts for 20%. The functionalized polyolefin resin is maleic anhydride grafted low density polyethylene. The surface modifier is a silane coupling agent. The inorganic flame retardant is magnesium hydroxide and aluminum hydroxide treated with a silane coupling agent (the silane coupling agent accounts for 2% of the mass fraction of the inorganic flame retardant). The main antioxidant is Antioxidant 300. The auxiliary antioxidants are antioxidant DLTP and antioxidant 168. The anti-copper agent is MD1024. Described lubricant is calcium stearate, polyethylene wax and silicon...

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Abstract

Belonging to high polymer materials for electric wires and cables, the invention relates to a 150DEG C irradiation crosslinking low-smoke halogen-free flame retardant polyolefin material for locomotive wires and its preparation. The 150DEG C irradiation crosslinking low-smoke halogen-free flame retardant polyolefin material for locomotive wires provided in the invention comprises base resin, functionalized polyolefin resin, a halogen-free flame retardant, a surface modifier, a main antioxidant, auxiliary antioxidants, an anti-copper agent, a lubricating agent and a crosslinked sensitizer. The 150DEG C irradiation crosslinking low-smoke halogen-free flame retardant polyolefin material for locomotive wires has the advantages of high temperature resistance grade, good oil-proofness, relatively low cost, no halogen in the whole system, low smoke during combustion and the like, it also has excellent extrusion process performance. Cables extruded from the low-smoke halogen-free flame retardant polyolefin material can completely meet the requirements of 150DEG C cables for locomotive wires.

Description

technical field [0001] The invention relates to a polymer material for wires and cables, in particular to a radiation cross-linked low-smoke, halogen-free, flame-retardant polyolefin material for 150°C locomotive wire and its preparation. Background technique [0002] Locomotive lines are mainly used in relatively closed environments such as subway vehicles and rolling stock, where people are concentrated and have strict requirements for low-smoke and halogen-free performance. In addition to high-efficiency flame retardancy, it must also have good high and low temperature performance and oil resistance. In addition, in order to prevent wires and cables from producing a large amount of toxic hydrogen halide gas and smoke in case of accidental fire and prevent secondary disasters, wires and cables for locomotive lines should also have excellent low-smoke and halogen-free performance. [0003] At present, the temperature resistance grade of the cable materials that can be used...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L51/06C08K13/06C08K9/06C08K3/22H01B3/44B29B9/06B29C47/92B29C48/92
CPCB29C47/92B29C48/40B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 徐敏明李振强
Owner SHANGHAI KAIBO SPECIAL CABLE FACTORY
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