Crust-type high-elongation low-smoke halogen-free flame-retardant polyolefin cable material and preparation method thereof

A technology of polyolefin cable material and high elongation, which is applied in the direction of circuits, electrical components, plastic/resin/wax insulators, etc. It can solve the problems of poor material flexibility and poor dispersion of inorganic powders, so as to prevent chimney effect, The effect of preventing the flame from penetrating into the cable

Inactive Publication Date: 2019-01-22
ANHUI HUALING CABLE GRP
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] "A low-smoke halogen-free flame-retardant polyolefin cable material and its preparation method" (patent application number CN 1445793A) prepared a cable material, but due to the high filling, the dispersion performance of the inorganic powder in the matrix is ​​poor, and the material's Less flexible
"A low-smoke halogen-free flame-retardant polyolefin cable material and its preparation method" (patent application number CN 1796450A) uses plastics such as ethylene vinyl acetate and high-density polyethylene compounded with inorganic powder, and solves the compatibility problem , improving the dispersion performance of inorganic powder, but neither of these two patents involves the toxicity of smoke generated during combustion and meets the requirements of bending-resistant cables for Chinese standard EMUs with speeds above 350KM per hour

Method used

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  • Crust-type high-elongation low-smoke halogen-free flame-retardant polyolefin cable material and preparation method thereof

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Embodiment Construction

[0015] Below in conjunction with embodiment the present invention is further described.

[0016] Raw material performance in the embodiment of the present invention:

[0017] Ethylene-vinyl acetate copolymer (EVA resin): MFR at temperature 190 o C, 1 g / 10min under the test condition of load weight 2.16 Kg;

[0018] Ethylene acrylate: the number of parts of methyl acrylate in the copolymer is 20 parts, and the MFR is at a temperature of 190 o C, 3 g / 10min under the test condition of load weight 2.16Kg;

[0019] Mg(OH) 2 : The particle size is 1.5 μm;

[0020] Al(OH) 3 : The particle size is 2.0 μm;

[0021] Zinc borate: particle size is 2.0 μm;

[0022] Microencapsulated red phosphorus: the particle size is 5-10 μm. Purple-red powder, relative density 2.1, bulk density 0.6g / cm3;

[0023] Ammonium polyphosphate: fineness (through 50μm sieve) / %≥ 90

[0024] SiO 2 : It is fumed white carbon black with a particle size of 0.5 μm;

[0025] Elastomer 1: an ethylene-butene ...

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Abstract

The invention provides a crust-type high-elongation low-smoke halogen-free flame-retardant polyolefin cable material, which is characterized in that raw materials of the cable material comprise the following ingredients (by weight): 40-70 parts of an ethylene-vinyl acetate copolymer, 2-10 parts of acrylate rubber, 5-20 parts of ethylene propylene rubber, 2-20 parts of an elastomer, 100-120 parts of a flame retardant, 10-30 parts of an anti-smoke flame retardant, 0.1-2 parts of an antioxidant, 0.1-2 parts of a lubricant, 0.5-2 parts of a vulcanizing agent, 5-20 parts of a reinforcing agent, and1-5 parts of a crust-forming agent. The invention also provides a preparation method of the cable material. The cable material can help reduce toxic fumes.

Description

technical field [0001] The invention belongs to the field of polymer material technology and science, and relates to a wire and cable material and a preparation method thereof, in particular to a low-smoke, halogen-free, flame-retardant, high-elongation and bending-resistant polyolefin cable material for Chinese standard motor vehicles and a preparation method thereof. Background technique [0002] The bending-resistant cable for 350km / h Chinese standard EMU is the carrier of electric energy transmission for the EMU. It is applied to the electrical equipment connection line for the electrified rail locomotive with a speed of 350km / h. It is the electrical control, power transmission, signal transmission and electrical connection components of the EMU. Its rated voltage is 600-3600V. The bending resistance of the bending-resistant cable used in the Chinese standard EMU at a speed of 350 kilometers per hour is extremely demanding. It needs to achieve the bending resistance of 5...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L33/04C08L23/16C08K13/06C08K3/22C08K3/38C08K9/10C08K3/02C08K3/32C08K3/36H01B3/44
CPCC08K2003/026C08K2003/2224C08K2003/2227C08K2003/323C08K2003/387C08K2201/011C08L23/0853C08L2201/02C08L2201/22C08L2203/202C08L2205/035H01B3/441C08L33/04C08L23/16C08L23/0815C08K13/06C08K3/22C08K3/38C08K9/10C08K3/02C08K3/32C08K3/36C08L23/0869
Inventor 陈龙叶斌聂祝婷
Owner ANHUI HUALING CABLE GRP
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