An irradiation-crosslinked oil-resistant type low-smoke halogen-free flame-retardant material used for cables of motor train units and a preparing method thereof

A technology for flame retardant materials and EMUs, applied in the field of flame retardant materials, can solve the problems of high price and inconvenient maintenance, and achieve the effects of good flame retardant effect, good extrusion processing performance and good oil resistance.

Inactive Publication Date: 2017-04-05
SHANGHAI KAIBO SPECIAL CABLE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

my country's high-speed EMU supporting power cables are almost all imported, and the outer insulation and sheath materials used are also produced abroad, which are very expensive and inconvenient to maintain

Method used

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  • An irradiation-crosslinked oil-resistant type low-smoke halogen-free flame-retardant material used for cables of motor train units and a preparing method thereof
  • An irradiation-crosslinked oil-resistant type low-smoke halogen-free flame-retardant material used for cables of motor train units and a preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Radiation cross-linked oil-resistant, low-smoke, halogen-free flame-retardant material for EMU cables. The raw material components and proportions are as follows: base resin 55 parts; compatibilizer 25 parts; flame retardant 80 parts; synergistic flame retardant 20 Parts; antioxidant 0.55 parts; lubricant 2.8 parts; sensitizer 1.6 parts; black masterbatch 4.5 parts.

[0041] Among them, based on the total weight of the base resin, the ethylene-vinyl acetate copolymer (melt index is 6.5g / 10min under a load of 2.16kg at 190℃, and the density is 0.945g / cm 3 , The content of vinyl acetate is 28%) accounts for 50%; ethylene-butyl acrylate copolymer (melt index is 5.5g / 10min under 190℃ load 2.16kg; density is 0.932g / cm 3 , Butyl acrylate content is 18wt.%) accounts for 25%; EPDM rubber (melt index is 15g / 10min under 190℃ load 2.16kg, density is 0.893g / cm 3 ) Accounted for 25%. The compatibilizer is a mixture of ethylene-vinyl acetate grafted maleic anhydride copolymer, polyethyle...

Embodiment 2

[0045] Irradiation cross-linked oil-resistant low-smoke halogen-free flame-retardant material for EMU cables. The raw material components and proportions are as follows: base resin 45; compatibilizer 8 parts; flame retardant 65 parts; synergistic flame retardant 5 Parts; antioxidant 0.3 parts; lubricant 1.2; sensitizer 0.8 parts; black masterbatch 2.5 parts.

[0046] Among them, based on the total weight of the base resin, the ethylene-vinyl acetate copolymer (melt index is 28.5g / 10min under a load of 2.16kg at 190℃, and the density is 0.967g / cm 3 , The content of vinyl acetate is 33wt.%) accounts for 40%; ethylene-butyl acrylate copolymer (melt index is 4.5g / 10min under 190℃ load 2.16kg; density is 0.936g / cm 3 , Butyl acrylate content is 16wt.%) accounts for 20%; EPDM rubber (melt index is 15g / 10min under 190℃ load 2.16kg, density is 0.893g / cm 3 ) Accounted for 40%. The compatibilizer is a mixture of ethylene-vinyl acetate grafted maleic anhydride copolymer, polyethylene grafted ...

Embodiment 3

[0050] Irradiation cross-linked oil-resistant low-smoke halogen-free flame-retardant materials for EMU cables. The raw material components and proportions are as follows: base resin 60 parts; compatibilizer 20 parts; flame retardant 85 parts; synergistic flame retardant 15 parts; anti-oxidant 0.65 parts; lubricant 3.5 parts; sensitizer 2 parts; black masterbatch 6 parts.

[0051] Among them, based on the total weight of the base resin, the ethylene-vinyl acetate copolymer (melt index is 6.5g / 10min under a load of 2.16kg at 190℃, and the density is 0.945g / cm 3 , Vinyl acetate content is 28wt.%) accounts for 60%; ethylene-butyl acrylate copolymer (melt index at 190℃ load 2.16kg is 5.5g / 10min; density is 0.932g / cm 3 , Butyl acrylate content is 18wt.%) accounts for 20%; EPDM rubber (melt index is 15g / 10min under 190℃ load 2.16kg, density is 0.893g / cm 3 ) Accounted for 20%. The compatibilizer is a mixture of ethylene-vinyl acetate grafted maleic anhydride copolymer, polyethylene grafte...

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Abstract

The invention relates to the field of flame retardant materials and particularly relates to an irradiation-crosslinked oil-resistant type low-smoke halogen-free flame-retardant material used for cables of motor train units and a preparing method thereof. Raw materials of the material include, by weight, 50-85 parts of substrate resin, 10-45 parts of a compatilizer, 70-125 parts of a flame retardant, 10-35 parts of a synergistic flame retardant, 0.35-1.45 parts of an antioxidant, 1.5-6 parts of a lubricant, 1-3 parts of a crosslinking sensitizing agent and 3-9 parts of black color master batch. The material has good flame retardant effects, good resistance to mineral oil, chemical resistance and high elongation at break, can meet torsion-resisting requirements of wire cables used for motor train units and has good production and extrusion processing properties.

Description

Technical field [0001] The invention relates to the field of flame-retardant materials, in particular to a radiation-crosslinked oil-resistant low-smoke halogen-free flame-retardant material for electric train unit cables and a preparation method thereof. Background technique [0002] With the rapid development of China's economy, the development of my country's high-speed railway industry has also made great progress. At the same time, the performance requirements for locomotives and electric accessories are also getting higher and higher. As a cable for power transmission on high-speed EMUs, higher requirements are put forward for its oil resistance and flame retardancy. In addition, high-speed EMUs have very high requirements on the mechanical properties of the cable, which imposes high requirements on the outer insulation of the cable. And the sheath poses a problem, not only to meet the flame retardant and oil resistance of the cable, but also to have a high elongation at br...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/16C08K13/06C08K9/06C08K9/04C08K3/22C08K3/38C08K5/134C08K5/526C08K5/372H01B3/44B29C47/92B29C48/92
CPCC08L23/0853B29C48/92B29C2948/92704C08K2201/003C08L23/16C08L2201/02C08L2201/22C08L2203/202C08L2205/025C08L2205/035C08L2312/06H01B3/441C08L23/0869C08L51/06C08L23/06C08L91/06C08K13/06C08K9/06C08K2003/2224C08K2003/2227C08K2003/387C08K3/2279C08K5/09C08K9/04C08L51/04
Inventor 王文君王美红
Owner SHANGHAI KAIBO SPECIAL CABLE FACTORY
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