CN107254162A - A kind of cable material with high flame retardant - Google Patents
A kind of cable material with high flame retardant Download PDFInfo
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- CN107254162A CN107254162A CN201710650103.6A CN201710650103A CN107254162A CN 107254162 A CN107254162 A CN 107254162A CN 201710650103 A CN201710650103 A CN 201710650103A CN 107254162 A CN107254162 A CN 107254162A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/08—Polyurethanes from polyethers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4045—Mixtures of compounds of group C08G18/58 with other macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4833—Polyethers containing oxyethylene units
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/58—Epoxy resins
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/302—Polyurethanes or polythiourethanes; Polyurea or polythiourea
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- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention belongs to electric power field of material technology there is provided a kind of cable material with high flame retardant, the described cable material with high flame retardant includes the raw material of following parts by weight：Modified polyurethane elastomer, ethylene-vinyl acetate copolymer, terephthalic acid (TPA) dibutyl ester, carbon black, fire retardant, inorganic filler, calcium-zinc composite stabilizing agent, antioxidant, lubricant.The cable material, by modifies to elastic polyurethane, improves the anti-flammability and heat endurance of polyurethane elastomer, and then improve the fire resistance of cable material using modified polyurethane elastomer as major ingredient.Particularly the montmorillonite with resistance to elevated temperatures is carried out after organic-treating, again by its intercalation on polyglycol ether, and then modified polyurethane elastomer is prepared, so, substantially increase the anti-flammability and heat endurance of polyurethane body so that cable material anti-flammability is significantly improved.
Description
Technical field
The invention belongs to electric power field of material technology, in particular it relates to a kind of cable material with high flame retardant.
Background technology
At present, cable the fields such as communication, electric power application widely.But, because cable belongs to combustible, because
This, with the frequent generation of electrical fire accident.A large amount of smog and poisonous, corrosive gas are discharged during cable fire is
Dangerous factor in fire.
In recent years, fire caused by the aging of cable is more and more, therefore, and the weatherability of cable, which is improved, also becomes people
Research emphasis.Death rate during in order to reduce the incidence of fire and occur fire, low cigarette, fire-retardant, weather-proof, environmentally friendly turns into
The developing direction of wires and cables industry.
In the prior art, the main component of CABLE MATERIALS, the anti-flammability of polyurethane elastomer are used as more using polyurethane elastomer
The fire resistance and weather resistance of prepared CABLE MATERIALS can be largely affected with weather resistance.However, polyurethane bullet
Property body belongs to flammable object in itself, so as to cause the fire resistance of obtained CABLE MATERIALS, weather resistance and thermal stability not
It is preferable.
Therefore, preparing the CABLE MATERIALS that a kind of technique is simple, fire resisting effect is good has higher application value.
The content of the invention
For defect of the prior art, it is an object of the invention to provide a kind of cable material with high flame retardant.
A kind of cable material with high flame retardant provided according to the present invention, the described cable material with high flame retardant
Material includes the raw material of following parts by weight：50-74 parts of modified polyurethane elastomer, 16-28 parts of ethylene-vinyl acetate copolymer,
1-9 parts of terephthalic acid (TPA) dibutyl ester, 4-5 parts of carbon black, 1-3 parts of fire retardant, 3-8 parts of inorganic filler, calcium-zinc composite stabilizing agent 1-2
Part, 1.3-3.2 parts of antioxidant, 1-3 parts of lubricant；
The method of modifying of the modified polyurethane elastomer is specially：
（1）The organic-treating of montmorillonite：It is 12% 12 that excessive concentration is added in the montmorillonite aqueous solution for being 10% to concentration
The alkyl trimethyl ammonium bromide aqueous solution, the suction filtration after stirring reaction 3-4h under the conditions of 60-70 DEG C, be washed with deionized water to without bromine from
Son, is dried under vacuum to quality constant weight, grinding, crosses 200 mesh sieves and obtains organo montmorillonite；
（2）The preparation of polyethers intercalated montmorillonite：To（1）In organo montmorillonite in add polyglycol ether, at 50 DEG C stir
Scattered 2-3h, grinding obtains polyglycol ether intercalated montmorillonite powder after drying；
（3）The synthesis of elastic polyurethane performed polymer：In the reactor, nitrogen is filled with, TDI and polyglycol ether are added, in 80-85
Stirring reaction 3-4h at DEG C, obtains elastic polyurethane performed polymer；
（4）The synthesis of epoxy polyurethane modified elastic body：Take（3）The elastic polyurethane performed polymer of gained is mixed with epoxy resin,
Stirring reaction produces epoxy polyurethane modified elastic body, the elastic polyurethane performed polymer and epoxy resin at 120-125 DEG C
Mass ratio is 1 ︰ 1.8-2.8；
（5）Curing molding：Mass ratio is mixed for 30 ︰ 1.8-2.5 epoxy polyurethane modified elastic body with curing agent, stirring is equal
After even in injection mould, the modified polyurethane elastomer can be obtained after solidifying 30 days at normal temperatures.
Preferably, the described cable material with high flame retardant includes the raw material of following parts by weight：Modified polyurethane
It is 50-64 parts of elastomer, 16-25 parts of ethylene-vinyl acetate copolymer, 1-6 parts of terephthalic acid (TPA) dibutyl ester, 4-5 parts of carbon black, fire-retardant
2-3 parts of agent, 3-6 parts of inorganic filler, 1-2 parts of calcium-zinc composite stabilizing agent, 1.3-2.2 parts of antioxidant, 1-2 parts of lubricant.
Preferably, the described cable material with high flame retardant includes the raw material of following parts by weight：Modified polyurethane
It is 56 parts of elastomer, 19 parts of ethylene-vinyl acetate copolymer, 5 parts of terephthalic acid (TPA) dibutyl ester, 4 parts of carbon black, 2 parts of fire retardant, inorganic
4 parts of filler, 1 part of calcium-zinc composite stabilizing agent, 1.5 parts of antioxidant, 1 part of lubricant.
Preferably, the step（3）Middle nitrogen weight full of reactor to be defined.
Preferably, the fire retardant is phosphorus-nitrogenated flame retardant.
Preferably, the lubricant is paraffin oil.
Preferably, the inorganic filler includes carborundum, silica, inorfil, carbon dust, antimony oxide, length
Albarium end, zinc oxide, calcium carbonate.
Preferably, the carborundum, silica, inorfil, carbon dust, antimony oxide, changbaiite powder, oxidation
Zinc, the mass ratio of calcium carbonate are 4-5:1-6:2-7:1-3:2-3:1:1-2:3.
Compared with prior art, the present invention has following beneficial effect：
A kind of cable material with high flame retardant that the present invention is provided, the cable material is based on modified polyurethane elastomer
Material, by modifies to elastic polyurethane, improves the anti-flammability and heat endurance of polyurethane elastomer, and then improve cable material
Fire resistance.Particularly the montmorillonite with resistance to elevated temperatures is carried out after organic-treating, then by its intercalation in poly- second two
On alcohol ether, and then modified polyurethane elastomer is prepared, in this way, the anti-flammability and heat that substantially increase polyurethane body are steady
It is qualitative so that cable material anti-flammability is significantly improved.In addition, being additionally added fire retardant in cable material formula to improve its anti-flammability
Energy.Inorganic filler is by carborundum, silica, inorfil, carbon dust, antimony oxide, changbaiite powder, zinc oxide, carbon
Sour calcium composition, wherein carborundum have the performances such as stable chemical performance, thermal conductivity factor are high, thermal coefficient of expansion is small, anti-wear performance is good,
It is used for manufacturing cable material with other raw materials compounding, the anti-flammability of cable material is remarkably improved.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.
Embodiment 1
A kind of cable material with high flame retardant that the present embodiment is provided, the described cable material with high flame retardant includes
The raw material of following parts by weight：50-74 parts of modified polyurethane elastomer, 16-28 parts of ethylene-vinyl acetate copolymer, to benzene two
It is 1-9 parts of formic acid dibutyl ester, 4-5 parts of carbon black, 1-3 parts of fire retardant, 3-8 parts of inorganic filler, 1-2 parts of calcium-zinc composite stabilizing agent, anti-
1.3-3.2 parts of oxidant, 1-3 parts of lubricant；
The method of modifying of the modified polyurethane elastomer is specially：
（1）The organic-treating of montmorillonite：It is 12% 12 that excessive concentration is added in the montmorillonite aqueous solution for being 10% to concentration
The alkyl trimethyl ammonium bromide aqueous solution, the suction filtration after stirring reaction 3-4h under the conditions of 60-70 DEG C, be washed with deionized water to without bromine from
Son, is dried under vacuum to quality constant weight, grinding, crosses 200 mesh sieves and obtains organo montmorillonite；
（2）The preparation of polyethers intercalated montmorillonite：To（1）In organo montmorillonite in add polyglycol ether, at 50 DEG C stir
Scattered 2-3h, grinding obtains polyglycol ether intercalated montmorillonite powder after drying；
（3）The synthesis of elastic polyurethane performed polymer：In the reactor, nitrogen is filled with, TDI and polyglycol ether are added, in 80-85
Stirring reaction 3-4h at DEG C, obtains elastic polyurethane performed polymer；
（4）The synthesis of epoxy polyurethane modified elastic body：Take（3）The elastic polyurethane performed polymer of gained is mixed with epoxy resin,
Stirring reaction produces epoxy polyurethane modified elastic body, the elastic polyurethane performed polymer and epoxy resin at 120-125 DEG C
Mass ratio is 1 ︰ 1.8-2.8；
（5）Curing molding：Mass ratio is mixed for 30 ︰ 1.8-2.5 epoxy polyurethane modified elastic body with curing agent, stirring is equal
After even in injection mould, the modified polyurethane elastomer can be obtained after solidifying 30 days at normal temperatures.
Wherein, the step（3）Middle nitrogen weight full of reactor to be defined.
Wherein, the fire retardant is phosphorus-nitrogenated flame retardant.
Wherein, the lubricant is paraffin oil.
Wherein, the inorganic filler includes carborundum, silica, inorfil, carbon dust, antimony oxide, length in vain
Stone powder, zinc oxide, calcium carbonate.
Wherein, the carborundum, silica, inorfil, carbon dust, antimony oxide, changbaiite powder, zinc oxide,
The mass ratio of calcium carbonate is 4-5:1-6:2-7:1-3:2-3:1:1-2:3.
Embodiment 2
A kind of cable material with high flame retardant that the present embodiment is provided, the described cable material with high flame retardant includes
The raw material of following parts by weight：50-74 parts of modified polyurethane elastomer, 16-28 parts of ethylene-vinyl acetate copolymer, to benzene two
It is 1-9 parts of formic acid dibutyl ester, 4-5 parts of carbon black, 1-3 parts of fire retardant, 3-8 parts of inorganic filler, 1-2 parts of calcium-zinc composite stabilizing agent, anti-
1.3-3.2 parts of oxidant, 1-3 parts of lubricant；
The method of modifying of the modified polyurethane elastomer is specially：
（1）The organic-treating of montmorillonite：It is 12% 12 that excessive concentration is added in the montmorillonite aqueous solution for being 10% to concentration
The alkyl trimethyl ammonium bromide aqueous solution, the suction filtration after stirring reaction 3-4h under the conditions of 60-70 DEG C, be washed with deionized water to without bromine from
Son, is dried under vacuum to quality constant weight, grinding, crosses 200 mesh sieves and obtains organo montmorillonite；
（2）The preparation of polyethers intercalated montmorillonite：To（1）In organo montmorillonite in add polyglycol ether, at 50 DEG C stir
Scattered 2-3h, grinding obtains polyglycol ether intercalated montmorillonite powder after drying；
（3）The synthesis of elastic polyurethane performed polymer：In the reactor, nitrogen is filled with, TDI and polyglycol ether are added, in 80-85
Stirring reaction 3-4h at DEG C, obtains elastic polyurethane performed polymer；
（4）The synthesis of epoxy polyurethane modified elastic body：Take（3）The elastic polyurethane performed polymer of gained is mixed with epoxy resin,
Stirring reaction produces epoxy polyurethane modified elastic body, the elastic polyurethane performed polymer and epoxy resin at 120-125 DEG C
Mass ratio is 1 ︰ 1.8-2.8；
（5）Curing molding：Mass ratio is mixed for 30 ︰ 1.8-2.5 epoxy polyurethane modified elastic body with curing agent, stirring is equal
After even in injection mould, the modified polyurethane elastomer can be obtained after solidifying 30 days at normal temperatures.
Wherein, the step（3）Middle nitrogen weight full of reactor to be defined.
Wherein, the fire retardant is phosphorus-nitrogenated flame retardant.
Wherein, the lubricant is paraffin oil.
Wherein, the inorganic filler includes carborundum, silica, inorfil, carbon dust, antimony oxide, length in vain
Stone powder, zinc oxide, calcium carbonate.
Wherein, the carborundum, silica, inorfil, carbon dust, antimony oxide, changbaiite powder, zinc oxide,
The mass ratio of calcium carbonate is 4-5:1-6:2-7:1-3:2-3:1:1-2:3.
Embodiment 3
A kind of cable material with high flame retardant that the present embodiment is provided, the described cable material with high flame retardant includes
The raw material of following parts by weight：50-64 parts of modified polyurethane elastomer, 16-25 parts of ethylene-vinyl acetate copolymer, to benzene two
It is 1-6 parts of formic acid dibutyl ester, 4-5 parts of carbon black, 2-3 parts of fire retardant, 3-6 parts of inorganic filler, 1-2 parts of calcium-zinc composite stabilizing agent, anti-
1.3-2.2 parts of oxidant, 1-2 parts of lubricant；
The method of modifying of the modified polyurethane elastomer is specially：
（1）The organic-treating of montmorillonite：It is 12% 12 that excessive concentration is added in the montmorillonite aqueous solution for being 10% to concentration
The alkyl trimethyl ammonium bromide aqueous solution, the suction filtration after stirring reaction 3-4h under the conditions of 60-70 DEG C, be washed with deionized water to without bromine from
Son, is dried under vacuum to quality constant weight, grinding, crosses 200 mesh sieves and obtains organo montmorillonite；
（2）The preparation of polyethers intercalated montmorillonite：To（1）In organo montmorillonite in add polyglycol ether, at 50 DEG C stir
Scattered 2-3h, grinding obtains polyglycol ether intercalated montmorillonite powder after drying；
（3）The synthesis of elastic polyurethane performed polymer：In the reactor, nitrogen is filled with, TDI and polyglycol ether are added, in 80-85
Stirring reaction 3-4h at DEG C, obtains elastic polyurethane performed polymer；
（4）The synthesis of epoxy polyurethane modified elastic body：Take（3）The elastic polyurethane performed polymer of gained is mixed with epoxy resin,
Stirring reaction produces epoxy polyurethane modified elastic body, the elastic polyurethane performed polymer and epoxy resin at 120-125 DEG C
Mass ratio is 1 ︰ 1.8-2.8；
（5）Curing molding：Mass ratio is mixed for 30 ︰ 1.8-2.5 epoxy polyurethane modified elastic body with curing agent, stirring is equal
After even in injection mould, the modified polyurethane elastomer can be obtained after solidifying 30 days at normal temperatures.
Wherein, the step（3）Middle nitrogen weight full of reactor to be defined.
Wherein, the fire retardant is phosphorus-nitrogenated flame retardant.
Wherein, the lubricant is paraffin oil.
Wherein, the inorganic filler includes carborundum, silica, inorfil, carbon dust, antimony oxide, length in vain
Stone powder, zinc oxide, calcium carbonate.
Wherein, the carborundum, silica, inorfil, carbon dust, antimony oxide, changbaiite powder, zinc oxide,
The mass ratio of calcium carbonate is 4-5:1-6:2-7:1-3:2-3:1:1-2:3.
Embodiment 4
A kind of cable material with high flame retardant that the present embodiment is provided, the described cable material with high flame retardant includes
The raw material of following parts by weight：50-64 parts of modified polyurethane elastomer, 16-25 parts of ethylene-vinyl acetate copolymer, to benzene two
It is 1-6 parts of formic acid dibutyl ester, 4-5 parts of carbon black, 2-3 parts of fire retardant, 3-6 parts of inorganic filler, 1-2 parts of calcium-zinc composite stabilizing agent, anti-
1.3-2.2 parts of oxidant, 1-2 parts of lubricant；
The method of modifying of the modified polyurethane elastomer is specially：
（1）The organic-treating of montmorillonite：It is 12% 12 that excessive concentration is added in the montmorillonite aqueous solution for being 10% to concentration
The alkyl trimethyl ammonium bromide aqueous solution, the suction filtration after stirring reaction 3-4h under the conditions of 60-70 DEG C, be washed with deionized water to without bromine from
Son, is dried under vacuum to quality constant weight, grinding, crosses 200 mesh sieves and obtains organo montmorillonite；
（2）The preparation of polyethers intercalated montmorillonite：To（1）In organo montmorillonite in add polyglycol ether, at 50 DEG C stir
Scattered 2-3h, grinding obtains polyglycol ether intercalated montmorillonite powder after drying；
（3）The synthesis of elastic polyurethane performed polymer：In the reactor, nitrogen is filled with, TDI and polyglycol ether are added, in 80-85
Stirring reaction 3-4h at DEG C, obtains elastic polyurethane performed polymer；
（4）The synthesis of epoxy polyurethane modified elastic body：Take（3）The elastic polyurethane performed polymer of gained is mixed with epoxy resin,
Stirring reaction produces epoxy polyurethane modified elastic body, the elastic polyurethane performed polymer and epoxy resin at 120-125 DEG C
Mass ratio is 1 ︰ 1.8-2.8；
（5）Curing molding：Mass ratio is mixed for 30 ︰ 1.8-2.5 epoxy polyurethane modified elastic body with curing agent, stirring is equal
After even in injection mould, the modified polyurethane elastomer can be obtained after solidifying 30 days at normal temperatures.
Wherein, the step（3）Middle nitrogen weight full of reactor to be defined.
Wherein, the fire retardant is phosphorus-nitrogenated flame retardant.
Wherein, the lubricant is paraffin oil.
Wherein, the inorganic filler includes carborundum, silica, inorfil, carbon dust, antimony oxide, length in vain
Stone powder, zinc oxide, calcium carbonate.
Wherein, the carborundum, silica, inorfil, carbon dust, antimony oxide, changbaiite powder, zinc oxide,
The mass ratio of calcium carbonate is 4-5:1-6:2-7:1-3:2-3:1:1-2:3.
Embodiment 5
A kind of cable material with high flame retardant that the present embodiment is provided, the described cable material with high flame retardant includes
The raw material of following parts by weight：56 parts of modified polyurethane elastomer, 19 parts of ethylene-vinyl acetate copolymer, terephthalic acid (TPA) two
Pungent 5 parts of fat, 4 parts of carbon black, 2 parts of fire retardant, 4 parts of inorganic filler, 1 part of calcium-zinc composite stabilizing agent, 1.5 parts of antioxidant, lubrication
1 part of agent；
The method of modifying of the modified polyurethane elastomer is specially：
（1）The organic-treating of montmorillonite：It is 12% 12 that excessive concentration is added in the montmorillonite aqueous solution for being 10% to concentration
The alkyl trimethyl ammonium bromide aqueous solution, the suction filtration after stirring reaction 3-4h under the conditions of 60-70 DEG C, be washed with deionized water to without bromine from
Son, is dried under vacuum to quality constant weight, grinding, crosses 200 mesh sieves and obtains organo montmorillonite；
（2）The preparation of polyethers intercalated montmorillonite：To（1）In organo montmorillonite in add polyglycol ether, at 50 DEG C stir
Scattered 2-3h, grinding obtains polyglycol ether intercalated montmorillonite powder after drying；
（3）The synthesis of elastic polyurethane performed polymer：In the reactor, nitrogen is filled with, TDI and polyglycol ether are added, in 80-85
Stirring reaction 3-4h at DEG C, obtains elastic polyurethane performed polymer；
（4）The synthesis of epoxy polyurethane modified elastic body：Take（3）The elastic polyurethane performed polymer of gained is mixed with epoxy resin,
Stirring reaction produces epoxy polyurethane modified elastic body, the elastic polyurethane performed polymer and epoxy resin at 120-125 DEG C
Mass ratio is 1 ︰ 1.8-2.8；
（5）Curing molding：Mass ratio is mixed for 30 ︰ 1.8-2.5 epoxy polyurethane modified elastic body with curing agent, stirring is equal
After even in injection mould, the modified polyurethane elastomer can be obtained after solidifying 30 days at normal temperatures.
Wherein, the step（3）Middle nitrogen weight full of reactor to be defined.
Wherein, the fire retardant is phosphorus-nitrogenated flame retardant.
Wherein, the lubricant is paraffin oil.
Wherein, the inorganic filler includes carborundum, silica, inorfil, carbon dust, antimony oxide, length in vain
Stone powder, zinc oxide, calcium carbonate.
Wherein, the carborundum, silica, inorfil, carbon dust, antimony oxide, changbaiite powder, zinc oxide,
The mass ratio of calcium carbonate is 4-5:1-6:2-7:1-3:2-3:1:1-2:3.
Performance test：
Embodiment 1-5 cable material is prepared into after cable with conventional method and determines performance, while taking commercially available common cable
Make to ratio, test result is shown in Table 1.
The cable-flame retardant performance as made from the cable material of the present invention passes through VW-1 vertical burn tests.
The test result list of table 1
| Project | VW-1 vertical combustions |
| Embodiment 1 | It is qualified |
| Embodiment 2 | It is qualified |
| Embodiment 3 | It is qualified |
| Embodiment 4 | It is qualified |
| Embodiment 5 | It is qualified |
| Comparative example | It is unqualified |
As can be seen here, the cable material with high flame retardant that provides of the present invention, it is better than general cable material fire resistance, have
There is significant fire retardation, be worthy of popularization.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (8)
1. a kind of cable material with high flame retardant, it is characterised in that：The described cable material with high flame retardant includes
The raw material of following parts by weight：50-74 parts of modified polyurethane elastomer, 16-28 parts of ethylene-vinyl acetate copolymer, to benzene two
It is 1-9 parts of formic acid dibutyl ester, 4-5 parts of carbon black, 1-3 parts of fire retardant, 3-8 parts of inorganic filler, 1-2 parts of calcium-zinc composite stabilizing agent, anti-
1.3-3.2 parts of oxidant, 1-3 parts of lubricant；
The method of modifying of the modified polyurethane elastomer is specially：
（1）The organic-treating of montmorillonite：It is 12% 12 that excessive concentration is added in the montmorillonite aqueous solution for being 10% to concentration
The alkyl trimethyl ammonium bromide aqueous solution, the suction filtration after stirring reaction 3-4h under the conditions of 60-70 DEG C, be washed with deionized water to without bromine from
Son, is dried under vacuum to quality constant weight, grinding, crosses 200 mesh sieves and obtains organo montmorillonite；
（2）The preparation of polyethers intercalated montmorillonite：To（1）In organo montmorillonite in add polyglycol ether, at 50 DEG C stir
Scattered 2-3h, grinding obtains polyglycol ether intercalated montmorillonite powder after drying；
（3）The synthesis of elastic polyurethane performed polymer：In the reactor, nitrogen is filled with, TDI and polyglycol ether are added, in 80-85
Stirring reaction 3-4h at DEG C, obtains elastic polyurethane performed polymer；
（4）The synthesis of epoxy polyurethane modified elastic body：Take（3）The elastic polyurethane performed polymer of gained is mixed with epoxy resin,
Stirring reaction produces epoxy polyurethane modified elastic body, the elastic polyurethane performed polymer and epoxy resin at 120-125 DEG C
Mass ratio is 1 ︰ 1.8-2.8；
（5）Curing molding：Mass ratio is mixed for 30 ︰ 1.8-2.5 epoxy polyurethane modified elastic body with curing agent, stirring is equal
After even in injection mould, the modified polyurethane elastomer can be obtained after solidifying 30 days at normal temperatures.
2. a kind of cable material with high flame retardant according to claim 1, it is characterised in that：Described has high resistant
The cable material of combustion property includes the raw material of following parts by weight：50-64 parts of modified polyurethane elastomer, ethene-vinyl acetate are common
16-25 parts of polymers, 1-6 parts of terephthalic acid (TPA) dibutyl ester, 4-5 parts of carbon black, 2-3 parts of fire retardant, 3-6 parts of inorganic filler, calcium zinc
1-2 parts of compound stabilizer, 1.3-2.2 parts of antioxidant, 1-2 parts of lubricant.
3. a kind of cable material with high flame retardant according to claim 1, it is characterised in that：Described has high resistant
The cable material of combustion property includes the raw material of following parts by weight：56 parts of modified polyurethane elastomer, ethylene-vinyl acetate copolymer
19 parts, it is 5 parts of terephthalic acid (TPA) dibutyl ester, 4 parts of carbon black, 2 parts of fire retardant, 4 parts of inorganic filler, 1 part of calcium-zinc composite stabilizing agent, anti-
1.5 parts of oxidant, 1 part of lubricant.
4. a kind of cable material with high flame retardant according to claim 1, it is characterised in that：The step（3）In
Nitrogen weight full of reactor to be defined.
5. a kind of cable material with high flame retardant according to claim 1, it is characterised in that：The fire retardant is
Phosphorus-nitrogenated flame retardant.
6. a kind of cable material with high flame retardant according to claim 1, it is characterised in that：The lubricant is stone
Wax oil.
7. a kind of cable material with high flame retardant according to claim 1, it is characterised in that：The inorganic filler
Including carborundum, silica, inorfil, carbon dust, antimony oxide, changbaiite powder, zinc oxide, calcium carbonate.
8. a kind of cable material with high flame retardant according to claim 7, it is characterised in that：The carborundum, two
Silica, inorfil, carbon dust, antimony oxide, changbaiite powder, zinc oxide, the mass ratio of calcium carbonate are 4-5:1-6:2-
7:1-3:2-3:1:1-2:3。
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109929496A (en) * | 2019-03-01 | 2019-06-25 | 翟治国 | A kind of LED ultraviolet light solidifies the preparation method of encapsulating material |
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