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Low-smoke-amount non-halogen flame-retardant cable compound and preparation method thereof

A flame-retardant cable material and low-smoke technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of high smoke release and insufficient light transmittance, achieve low smoke release, increase temperature range, and good phase capacitive effect

Inactive Publication Date: 2017-01-25
OPTA POLYMER JIANGSU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Purpose of the invention: In view of the above problems, one purpose of the present invention is to provide a low-smoke halogen-free flame-retardant cable material to solve the problem of high smoke emission and low light transmittance when traditional flame-retardant materials are applied to cables with large cross-sections or complex structures. not enough problem

Method used

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  • Low-smoke-amount non-halogen flame-retardant cable compound and preparation method thereof

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Effect test

Embodiment 1

[0021] A low-smoke halogen-free flame-retardant cable material, the components of which are: ethylene-vinyl acetate copolymer 25%, polyethylene 4%, maleic anhydride grafted polyethylene 4%, inorganic resistance 60% of fuel, 1% of alkyl siloxane, 5% of smoke suppressant and 1% of antioxidant additive, the sum of the mass percentages of each component is 100%.

[0022] The vinyl acetate content of the ethylene-vinyl acetate copolymer is 40g / cm 3 , the melt index is 2g / 10min, and the density of polyethylene is 0.918g / cm 3 , the melt index is 2g / 10min, the graft rate of maleic anhydride grafted polyethylene is 0.8%, the melt index is 1.0g / 10min, the average particle size of the inorganic filler powder is 1-2μm; the inorganic filler is aluminum hydroxide , two mixtures of magnesium hydroxide, the mass ratio is 1:1, the alkyl siloxane is vinyl siloxane, the effective content is ≥99%, the smoke suppressant is zinc molybdate powder, and the average particle size is 1-2 μm , the anti...

Embodiment 2

[0030] A low-smoke halogen-free flame-retardant cable material, the components of which are: ethylene-vinyl acetate copolymer 27%, polyethylene 4%, maleic anhydride grafted polyethylene 2%, inorganic resistance 62% of fuel, 1% of alkyl siloxane, 3% of smoke suppressant and 1% of antioxidant additive, the sum of the mass percentages of each component is 100%.

[0031] The vinyl acetate content of the ethylene-vinyl acetate copolymer is 40g / cm 3 , the melt index is 2g / 10min, the density of polyethylene is 0.918, the melt index is 2g / 10min, the grafting rate of maleic anhydride grafted polyethylene is 0.8%, the melt index is 1.0g / 10min, the inorganic filler powder particles The average particle size is 1-2 μm; the inorganic filler is a mixture of aluminum hydroxide and magnesium hydroxide, the mass ratio is 1:1, the alkyl siloxane is vinyl siloxane, the effective content is ≥ 99%, and the smoke is suppressed The agent is zinc molybdate powder, the average particle size is 1-2 μm...

Embodiment 3

[0037] A low-smoke halogen-free flame-retardant cable material, the composition of which is: ethylene-vinyl acetate copolymer 25%, polyethylene 3%, maleic anhydride grafted polyethylene 2%, inorganic resistance 65% of fuel, 1% of alkyl siloxane, 3% of smoke suppressant and 1% of antioxidant additive, the sum of the mass percentages of each component is 100%.

[0038] The vinyl acetate content of the ethylene-vinyl acetate copolymer is 40g / cm 3 , the melt index is 2g / 10min, the density of polyethylene is 0.918, the melt index is 2g / 10min, the grafting rate of maleic anhydride grafted polyethylene is 0.8%, the melt index is 1.0g / 10min, the inorganic filler powder particles The average particle size is 1-2 μm; the inorganic filler is a mixture of aluminum hydroxide and magnesium hydroxide, the mass ratio is 1:1, the alkyl siloxane is vinyl siloxane, the effective content is ≥ 99%, and the smoke is suppressed The agent is zinc molybdate powder, the average particle size is 1-2 μm...

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Abstract

The invention discloses a low-smoke-amount non-halogen flame-retardant cable compound. The low-smoke-amount non-halogen flame-retardant cable compound comprises the following components in mass percent: 25 to 28 percent of ethylene-vinyl acetate copolymer, 3 to 5 percent of polyethylene, 2 to 4 percent of maleic anhydride grafted polyethylene, 60 to 65 percent of an inorganic flame retardant, 0.5 to 1 percent of alkylsiloxane, 3 to 5 percent of a smoke inhibitor, and 1 to 3 percent of an antioxidant assistant, and the sum of the mass percent of all the components is 100 percent. The invention further discloses a preparation method of the low-smoke-amount non-halogen flame-retardant cable compound. The low-smoke-amount non-halogen flame-retardant cable compound has excellent mechanical properties and electrical properties, greatly reduces the density of flame smoke and the density of flameless smoke during combustion, greatly improves the light transmittance of finished cables, and is particularly suitable for the preparation of cables with large sections or complex structures.

Description

technical field [0001] The invention relates to the field of wire and cable materials, in particular to a low-smoke, halogen-free, flame-retardant cable material and a preparation method thereof. Background technique [0002] With the development of cable technology and the advancement of social needs, low-smoke, halogen-free, flame-retardant cables are playing an increasingly important role in daily life, and more and more occasions require the use of low-smoke, halogen-free, and flame-retardant cables. However, although traditional low-smoke halogen-free flame-retardant cable materials have the characteristics of low smoke emission, when they are applied to cables with large cross-sections or complex structures, due to the large amount of plastic materials used, there is still a high amount of smoke during combustion, especially flameless combustion. This has brought adverse effects on personnel escape and on-site rescue at dangerous times. Therefore, the market needs a h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08L51/06C08K13/02C08K3/22C08K5/5425C08K3/24H01B3/44H01B7/295B29C47/92B29C48/92
CPCC08L23/0853B29C48/92B29C2948/92704C08K2201/003C08L2201/02C08L2201/22C08L2203/202C08L2205/02C08L2205/03C08L2207/062H01B3/441H01B7/295C08L23/06C08L51/06C08K13/02C08K2003/2227C08K2003/2224C08K5/5425C08K3/24
Inventor 刘家诚张成徐鑫森
Owner OPTA POLYMER JIANGSU
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