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Halogen-free flame-retardant ceramic polyolefin cable material for fire-resistant cables and preparation method thereof

A ceramic polyolefin and fire-resistant cable technology, applied in the direction of plastic/resin/wax insulators, organic insulators, etc., can solve the problems of limited application range, unfavorable scale-up production, low production efficiency, etc., and achieve fast crusting and complete surface , the effect of low crust temperature

Active Publication Date: 2018-09-07
中广核三角洲(江苏)塑化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the disadvantages of the vitrified silicone rubber cable material are: when in use, it needs to be extruded by special extrusion equipment and needs to be vulcanized, the process is relatively complicated, and the scope of application is limited; if the cable material is made into a silicone rubber belt Wrapping it outside the wire and cable core will make the production efficiency low and the cost high, which is not conducive to industrial scale-up production

Method used

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  • Halogen-free flame-retardant ceramic polyolefin cable material for fire-resistant cables and preparation method thereof
  • Halogen-free flame-retardant ceramic polyolefin cable material for fire-resistant cables and preparation method thereof

Examples

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Effect test

Embodiment 1

[0045] Example 1: A halogen-free flame-retardant ceramic polyolefin cable material for fire-resistant cables, consisting of the following materials in parts by weight: 45 parts of ethylene-vinyl acetate copolymer, 40 parts of ethylene-α-propylene copolymer, ethylene - α-propylene copolymer is EPDM4725P produced by American Dow Company, 5 parts of high-density polyethylene resin, this high-density polyethylene resin is HDPE-553 produced by American NexusResin Group, 10 parts of maleic anhydride grafted amorphous polyolefin , the maleic anhydride grafted amorphous polyolefin is JY035 produced by Shanghai Jiuju Company, the maleic anhydride grafting rate is 1.0%, 50 parts of mica powder, 50 parts of ceramic powder, 50 parts of glass powder with a melting point of 500 ° C, nano hydrogen 50 parts of alumina, 5 parts of calcium oxide, 8 parts of zinc oxide, 10 parts of melamine cyanurate, 15 parts of microencapsulated red phosphorus, 50 parts of nano aluminum hydroxide, 2 parts of or...

Embodiment 2

[0048] Example 2: A halogen-free flame-retardant ceramic polyolefin cable material for fire-resistant cables, consisting of the following materials in parts by weight: 40 parts of ethylene-vinyl acetate copolymer, 40 parts of ethylene-α-octene copolymer, and Ethylene-α-octene copolymer is DF8200 produced by Mitsui Corporation of Japan, 10 parts of high-density polyethylene resin, this high-density polyethylene resin is HDPE-553 produced by Nexus Resin Group of the United States, maleic anhydride grafted amorphous polyolefin 10 parts, this maleic anhydride grafted amorphous polyolefin is JY035 produced by Shanghai Jiuju Company, the maleic anhydride grafting rate is 1.5%, 60 parts of mica powder, 40 parts of ceramic powder, 30 parts of glass powder with a melting point of 750°C, 40 parts of nano aluminum hydroxide, 10 parts of calcium oxide, 5 parts of zinc oxide, 9 parts of melamine cyanurate, 10 parts of microencapsulated red phosphorus, 60 parts of nano aluminum hydroxide, 5 ...

Embodiment 3

[0051] Example 3: A halogen-free flame-retardant ceramic polyolefin cable material for fire-resistant cables, consisting of the following materials in parts by weight: 40 parts of ethylene-vinyl acetate copolymer, 40 parts of ethylene-α-octene copolymer, and Ethylene-α-octene copolymer is DF8200 produced by Mitsui Corporation of Japan, 8 parts of high-density polyethylene resin, this high-density polyethylene resin is HDPE-1062 produced by Nexus Resin Group of the United States, maleic anhydride grafted amorphous polyolefin 10 parts, this maleic anhydride grafted amorphous polyolefin is JY035 produced by Shanghai Jiuju Company, the maleic anhydride grafting rate is 1.5%, 40 parts of mica powder, 60 parts of ceramic powder, 40 parts of glass powder with a melting point of 800 ° C, 60 parts of nano aluminum hydroxide, 12 parts of calcium oxide, 9 parts of zinc oxide, 12 parts of melamine cyanurate, 15 parts of microencapsulated red phosphorus, 45 parts of nano aluminum hydroxide,...

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Abstract

The invention relates to a halogen-free flame-retardant ceramic polyolefin cable material for fire-resisting cables and a preparation method for the halogen-free flame-retardant ceramic polyolefin cable material. The halogen-free flame-retardant ceramic polyolefin cable material is prepared from the following materials in parts by weight: an ethylene-vinyl acetate copolymer, an ethylene-alpha-olefin copolymer, high-density polyethylene resin, maleic anhydride grafted amorphous polyolefin, mica powder, ceramic powder, glass powder, calcium oxide, zinc oxide, melamine cyanurate, microencapsulated red phosphorus, nano aluminum hydroxide, organic montmorillonite, multi-walled carbon nanotubes, an antioxidant, a silane coupling agent and lubricant silicone master batch, wherein the melt flow rate is 3 to 5 grams per 10 minutes; the ethylene-alpha-olefin copolymer is either an ethylene-alpha-propylene copolymer or an ethylene-alpha-octylene copolymer or a mixture which is prepared through mixing the ethylene-alpha-propylene copolymer and the ethylene-alpha-octylene copolymer according to any weight ratio; and the glass powder is low-melting-point glass powder and has the melting point of 500 to 800 DEG C. The halogen-free flame-retardant ceramic polyolefin cable material is transformed into a hardy ceramic protective layer through ceramization after the halogen-free flame-retardant ceramic polyolefin cable material catches fire in case of high temperature, and the ceramic protective layer has certain mechanical strength, so that the normal operation of electric-line cable lines is guaranteed.

Description

technical field [0001] The invention relates to the field of low-smoke fire-resistant cable materials, in particular to a halogen-free flame-retardant ceramic polyolefin cable material for fire-resistant cables and a preparation method thereof. Background technique [0002] With the rapid growth of urban population, along with the continuous increase of high-rise buildings, subways, airports, stations, large hotels, supermarkets, hospitals, and large public sports, entertainment venues, and public transportation facilities, the importance of fire protection and fire safety issues has become prominent. . At present, when a fire breaks out in some large, high-rise buildings or public places, the fire will cause a circuit failure, which will cause the alarm, automatic doors, elevators, sprinkler systems, various signal transmission systems and other emergency rescue equipment to stop working, making it difficult for on-site personnel to escape. At the same time, if combustibl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L31/04C08L23/08C08L23/06C08L51/06C08K13/06C08K7/24C08K3/36C08K3/40C08K3/22C08K5/3492C08K3/02C08K3/34H01B3/44B29C47/92B29C48/92
Inventor 张家宏单永东高晓慧顾佳
Owner 中广核三角洲(江苏)塑化有限公司
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