CN104974412A - Vulcanized oil-resistant flame-retardant locomotive cable sheath material and preparation method thereof - Google Patents
Vulcanized oil-resistant flame-retardant locomotive cable sheath material and preparation method thereof Download PDFInfo
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
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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
- H01B3/28—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
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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
- H01B3/44—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 vinyl resins; acrylic resins
- H01B3/441—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 vinyl resins; acrylic resins from alkenes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C08L2203/00—Applications
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- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention belongs to the field of high-polymer materials, and particularly relates to a vulcanized oil-resistant flame-retardant locomotive cable sheath material and a preparation method thereof. The locomotive cable sheath material comprises the following raw materials in parts by mass: 40-75 parts of EVA (ethylene-vinyl acetate) resin, 15-40 parts of carboxylated butadiene-acrylonitrile rubber, 1-20 parts of compatilizer, 100-170 parts of flame retardant, 10-40 parts of reinforcing agent, 0.5-5 parts of vulcanizing agent, 0-5 parts of assistant crosslinking agent, 0.5-2 parts of antioxidant, 0.5-2 parts of zinc stearate and 3-15 parts of zinc oxide. The weight ratio of the carboxylated nitrile-butadiene rubber to the EVA resin is 1:(1-3.5). The vulcanized oil-resistant flame-retardant locomotive cable sheath material has obvious oil resistance, effectively prolongs the service life of the cable, ensures the use safety, and lowers the cost.
Description
Technical field
The invention belongs to polymeric material field, particularly fire-retardant Locomotive engine cable sheath material of a kind of sulfide type oil resistant and preparation method thereof.
Background technology
Along with China's urban rail transit construction portfolio in worldwide is surged, rail locomotive updates gradually, and its safe class also improves gradually.Modernization compartment is premised on degree of safety and human oriented design, these conditions and facility, essentially relevant with electric power, control and signal cable, all kinds of electric wire except should ensure safe and reliable to operation except, avoid personal injury under also should be taken into account accident conditions as far as possible and reduce impact on facility.
Current industry inner orbit Locomotive engine cable in use inevitably will touch various oils, if electric wire does not possess oil resistant characteristic, after immersion oil tensile strength and elongation at break fall huge, make the work-ing life of cable short, have larger threat to the life security of people and the normal use of equipment, the oil resistance therefore how improving cable sheath becomes current technical issues that need to address.And the insufficient strength of cable of the prior art, wear resistance and tear strength have much room for improvement.
Chinese patent CN 103265742 A discloses Oil-Resistant Cable Sheath in, using polyvinyl chloride as resin body, can not meet the requirement of Halogen; With the addition of paracril simultaneously, but do not have graft modification, oil resistance is general.
Patent CN 104672743 A discloses the Oil-Resistant Cable Sheath that a kind of marine field uses, and it improves emphatically the curved characteristic of cable, does not further investigate cable machinery property retention rate after contact oil.
Summary of the invention
The object of this invention is to provide the fire-retardant Locomotive engine cable sheath material of a kind of sulfide type oil resistant, the oil resistance highly significant of this Locomotive engine cable sheath material, improves the work-ing life of cable effectively, ensures its safety in utilization, reduces cost.
Another object of the present invention is to provide the preparation method of the fire-retardant Locomotive engine cable sheath material of a kind of above-mentioned sulfide type oil resistant.
Object of the present invention can be achieved through the following technical solutions:
The fire-retardant Locomotive engine cable sheath material of a kind of sulfide type oil resistant, is characterized in that: this Locomotive engine cable sheath material comprises the raw material of following mass fraction meter:
Preferably, the weight ratio of described carboxylated nitrile rubber and EVA resin is 1:1-3.5.
Described EVA resin is selected from VA content at 10%-30%, and melting index is 2.0-3.5g/10min, and tensile strength is 25-30MPa, and elongation is one or more the mixture of 500-1000%.Preferably, described EVA resin to be VA content be 14% or VA content be the mixture of one or both the EVA resin of 28%.Further preferred, to be VA content be described EVA resin 14% is the mixture of two kinds of EVA resin of 28% with VA content, and its weight ratio is 1:1-5.VA content suitable in EVA resin, keeps certain tensile strength while being conducive to increasing resin polarity.
Vinyl cyanide mass percentage in described carboxylated nitrile rubber is 30%-40%.Such selection, ensures that rubber has certain molecular binding events power and certain heat-resistant stability.
Described compatilizer is the mixture of a kind of in Research of Grafting Malaic Anhydride Onto Polyethylene (PE-g-MAH), EVA grafted maleic anhydride (EVA-g-MAH) or two kinds.
Described oxidation inhibitor is one or more the mixture with the photostabilizer of benzophenone functional group, hindered phenol stabilizer, phosphite ester stabilizer or hindered amine stabilizer.Preferably, described hindered phenol stabilizer is four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, and described phosphite ester stabilizer is three (2,4-di-t-butyl) phenyl-phosphite.Preferred further, described oxidation inhibitor is four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester and three (2,4-di-t-butyl) phenyl-phosphite mixes according to the ratio of weight ratio 1:1-2, adopt two kinds of composite antioxidants, play synergistic effect, be conducive to the stability of product.
Described fire retardant is one or both mixture of aluminium hydroxide or magnesium hydroxide.Preferably, described fire retardant is aluminium hydroxide and magnesium hydroxide is the mixture of 1:0.5-3 according to weight ratio.Adopt compound flame retardant, the flame retardant resistance of product strengthens greatly.
Described strengthening agent is one or both the mixture in calcining white carbon black, calcinated argil;
Described additional crosslinker is triallyl cyanurate (TAC), one or more the mixture in iso-cyanuric acid triallyl ester (TAIC) or trimethylolpropane trimethacrylate (TMPTMA).Preferably, described additional crosslinker is 0.5-1.5 mass parts.
Described vulcanizing agent is dicumyl peroxide (DCP), α, α '-bis-(tert-butyl peroxy base) diisopropylbenzene(DIPB) (two BP) in a kind of or mixture of two kinds;
The preparation method of the fire-retardant Locomotive engine cable sheath material of above-mentioned sulfide type oil resistant, its step comprises:
(1), good various raw material is weighed according to formula;
(2), by EVA resin, carboxylated nitrile rubber, compatilizer premix, the adding pressure type kneader being warmed up to 70-90 DEG C is dropped into, banburying mixing 3-6 minute;
(3) add fire retardant, oxidation inhibitor, Zinic stearas, zinc oxide, additional crosslinker, continue to mediate 5-10 minute;
(4), add vulcanizing agent, mediate and obtain banburying product in 3-5 minute;
(5), banburying product extruding pelletization, wind cold drying, reciprocating sieve are sieved, weigh, pack.Preferably, extrusion temperature is 70-100 DEG C.
Compared with prior art, beneficial effect of the present invention is:
1, the present invention is by the fire-retardant Locomotive engine cable sheath material of sulfide type oil resistant of preparation, carboxyl introducing in its formula in carboxylated nitrile rubber makes to define special tiny densification between NBR and EVA interface and is cross-linked crystal structure, give high strength, there is good cementability and ageing resistance, improve wear resistance and tear strength, fine and close structure substantially increases cable oil-proofness, effectively improves the work-ing life of cable, ensure its safety in utilization, reduce cost.
2, the preparation technology of the fire-retardant Locomotive engine cable sheath material of sulfide type oil resistant provided by the invention controllability that is simple, technique is strong, easy and simple to handle.
Embodiment
Below in conjunction with embodiment, the invention will be further described:
Raw material: EVA resin, Japanese eastern Cao; Carboxylated nitrile rubber, Japanese auspicious father-in-law.
Embodiment 1
(1), by formula following each component is taken: EVA resin 70 parts (VA14% is 22 parts, and VA28% is 48 parts), carboxylated nitrile rubber 20 parts, PE-g-MAH are 10 parts, magnesium hydroxide 40 parts, 90 parts, aluminium hydroxide, calcinated argil 12 parts, DCP are 1 part, TMPTMA is 0.5 part, antioxidant 1010 is 1 part, irgasfos 168 is 0.5 part, Zinic stearas 0.2 part, 5 parts, zinc oxide.
(2), by EVA resin, carboxylated nitrile rubber, compatilizer PE-g-MAH premix, drop into the adding pressure type kneader being warmed up to 70 DEG C, banburying mixes 3 minutes; Add magnesium hydroxide, aluminium hydroxide, antioxidant 1010 again, irgasfos 168, Zinic stearas, zinc oxide, TMPTMA, continue kneading 5 minutes; Add vulcanizing agent DCP, mediate and can obtain banburying product after 3 minutes; Banburying product is sent into extruding pelletization in single screw extrusion machine, and extrusion temperature is 70-100 DEG C, last wind cold drying, and reciprocating sieve sieves, and weighs, packs.
Embodiment 2
(1), by formula following each component is taken: EVA resin 70 parts (VA14% is 30 parts, and VA28% is 40 parts), carboxylated nitrile rubber 20 parts, EVA-g-MAH are 8 parts, magnesium hydroxide 60 parts, 80 parts, aluminium hydroxide, calcinated argil 12 parts, two BP are 1 part, TMPTMA is 0.5 part, antioxidant 1010 is 1 part, irgasfos 168 is 0.5 part, Zinic stearas 0.2 part, 5 parts, zinc oxide.
(2), by EVA resin, carboxylated nitrile rubber, compatilizer EVA-g-MAH premix, drop into the adding pressure type kneader being warmed up to 80 DEG C, banburying mixes 5 minutes; Add magnesium hydroxide, aluminium hydroxide, antioxidant 1010 again, irgasfos 168, Zinic stearas, zinc oxide, TMPTMA, continue kneading 8 minutes; Add the two BP of vulcanizing agent, mediate and can obtain banburying product after 5 minutes; Banburying product is sent into extruding pelletization in single screw extrusion machine, and extrusion temperature is 70-100 DEG C, last wind cold drying, and reciprocating sieve sieves, and weighs, packs.
Embodiment 3
(1), by formula following each component is taken: EVA resin 50 parts (VA14% is 20 parts, and VA28% is 30 parts), carboxylated nitrile rubber 42 parts, EVA-g-MAH are 8 parts, magnesium hydroxide 80 parts, 70 parts, aluminium hydroxide, calcinated argil 30 parts, two DCP are 2.2 parts, TMPTMA is 1 part, antioxidant 1010 is 1.6 parts, irgasfos 168 is 0.8 part, Zinic stearas 0.4 part, 12 parts, zinc oxide.
(2), by EVA resin, carboxylated nitrile rubber, compatilizer EVA-g-MAH premix, drop into the adding pressure type kneader being warmed up to 90 DEG C, banburying mixes 6 minutes; Add magnesium hydroxide, aluminium hydroxide, antioxidant 1010 again, irgasfos 168, Zinic stearas, zinc oxide, TMPTMA, continue kneading 10 minutes; Add vulcanizing agent DCP, mediate and can obtain banburying product after 5 minutes; Banburying product is sent into extruding pelletization in single screw extrusion machine, and extrusion temperature is 70-100 DEG C, last wind cold drying, and reciprocating sieve sieves, and weighs, packs.
Embodiment 4
(1), by formula following each component is taken: EVA resin 43 parts (VA14% is 20 parts, and VA28% is 23 parts), carboxylated nitrile rubber 43 parts, PE-g-MAH are 8 parts, magnesium hydroxide 90 parts, 65 parts, aluminium hydroxide, calcinated argil 38 parts, two BP are 2 parts, TMPTMA is 1.2 parts, antioxidant 1010 is 1.8 parts, irgasfos 168 is 1 part, Zinic stearas 0.4 part, 15 parts, zinc oxide.
(2), by EVA resin, carboxylated nitrile rubber, compatilizer PE-g-MAH premix, drop into the adding pressure type kneader being warmed up to 90 DEG C, banburying mixes 6 minutes; Add magnesium hydroxide, aluminium hydroxide, antioxidant 1010 again, irgasfos 168, Zinic stearas, zinc oxide, TMPTMA, continue kneading 10 minutes; Add the two BP of vulcanizing agent, mediate and can obtain banburying product after 5 minutes; Banburying product is sent into extruding pelletization in single screw extrusion machine, and extrusion temperature is 70-100 DEG C, last wind cold drying, and reciprocating sieve sieves, and weighs, packs.
Embodiment 5
(1), by formula following each component is taken: EVA resin 45 parts (VA14% is 20 parts, and VA28% is 25 parts), carboxylated nitrile rubber 40 parts, EVA-g-MAH are 15 parts, magnesium hydroxide 85 parts, 80 parts, aluminium hydroxide, calcinated argil 30 parts, DCP are 2 parts, TMPTMA is 1.2 parts, antioxidant 1010 is 1.6 parts, irgasfos 168 is 0.8 part, Zinic stearas 0.4 part, 10 parts, zinc oxide.
(2), by EVA resin, carboxylated nitrile rubber, compatilizer EVA-g-MAH premix, drop into the adding pressure type kneader being warmed up to 85 DEG C, banburying mixes 7 minutes; Add magnesium hydroxide, aluminium hydroxide, antioxidant 1010 again, irgasfos 168, Zinic stearas, zinc oxide, TMPTMA, continue kneading 10 minutes; Add vulcanizing agent DCP, mediate and can obtain banburying product after 5 minutes; Banburying product is sent into extruding pelletization in single screw extrusion machine, and extrusion temperature is 70-100 DEG C, last wind cold drying, and reciprocating sieve sieves, and weighs, packs.
Comparative example
(1), following each component is taken by formula: EVA resin 70 parts, nitrile rubber 20 parts, PE-g-MAH are 10 parts, magnesium hydroxide 60 parts, 90 parts, aluminium hydroxide, calcinated argil 12 parts, DCP are 1 part, TMPTMA is 0.5 part, antioxidant 1010 is 1 part, irgasfos 168 is 0.5 part, Zinic stearas 0.2 part, 5 parts, zinc oxide.
(2), by EVA resin, paracril, compatilizer PE-g-MAH premix, drop into the adding pressure type kneader being warmed up to 70 DEG C, banburying mixes 3 minutes; Add magnesium hydroxide, aluminium hydroxide, antioxidant 1010 again, irgasfos 168, Zinic stearas, zinc oxide, TMPTMA, continue kneading 5 minutes; Add vulcanizing agent DCP, mediate and can obtain banburying product after 3 minutes; Banburying product is sent into extruding pelletization in single screw extrusion machine, and extrusion temperature is 70-100 DEG C, last wind cold drying, and reciprocating sieve sieves, and weighs, packs.
Test result:
Tested by car cable sheath material in fire-retardant for sulfide type oil resistant in embodiment 1-5 Locomotive engine cable sheath material and comparative example, its result is as shown in table 1 below:
Table 1 performance test
As can be seen from the table, the fire-retardant Locomotive engine cable sheath material of sulfide type oil resistant provided by the invention has oil resistant characteristic, it is through (100 DEG C, mineral oil, 72 hours) and oil fuel (70 DEG C, 100 hours) velocity of variation of aging later its intensity and elongation is less than ± and 30%, there is high application prospect, and the carboxyl in formula of the present invention in carboxylated nitrile rubber is introduced, make car cable sheath material of the present invention compared with comparative example, be through (100 DEG C, mineral oil equally, 72 hours) and oil fuel (70 DEG C, 100 hours) aging, the velocity of variation of its intensity and elongation reduces.
The above is preferred embodiment of the present invention, but the present invention should not be confined to the content disclosed in this embodiment.The equivalence completed under not departing from spirit disclosed in this invention so every or amendment, all fall into the scope of protection of the invention.
Claims (10)
1. the fire-retardant Locomotive engine cable sheath material of sulfide type oil resistant, is characterized in that: this Locomotive engine cable sheath material comprises the raw material of following mass fraction meter:
2. the fire-retardant Locomotive engine cable sheath material of sulfide type oil resistant according to claim 1, is characterized in that: the weight ratio of described carboxylated nitrile rubber and EVA resin is 1:1-3.5.
3. the fire-retardant Locomotive engine cable sheath material of sulfide type oil resistant according to claim 1, it is characterized in that: EVA resin is selected from VA content at 10%-30%, melting index is 2.0-3.5g/10min, and tensile strength is 25-30MPa, and elongation is one or more the mixture of 500-1000%.
4. the fire-retardant Locomotive engine cable sheath material of sulfide type oil resistant according to claim 1, is characterized in that: the vinyl cyanide mass percentage in described carboxylated nitrile rubber is 30%-40%.
5. the fire-retardant Locomotive engine cable sheath material of sulfide type oil resistant according to claim 1, is characterized in that: described compatilizer is the mixture of a kind of in Research of Grafting Malaic Anhydride Onto Polyethylene, EVA grafted maleic anhydride or two kinds.
6. the fire-retardant Locomotive engine cable sheath material of sulfide type oil resistant according to claim 1, is characterized in that: described oxidation inhibitor is one or more the mixture with the photostabilizer of benzophenone functional group, hindered phenol stabilizer, phosphite ester stabilizer or hindered amine stabilizer.
7. the fire-retardant Locomotive engine cable sheath material of sulfide type oil resistant according to claim 1, is characterized in that: described fire retardant is one or both mixture of aluminium hydroxide or magnesium hydroxide.
8. the fire-retardant Locomotive engine cable sheath material of sulfide type oil resistant according to claim 1, is characterized in that: described strengthening agent is one or both the mixture in calcining white carbon black, calcinated argil; Described additional crosslinker is triallyl cyanurate, one or more the mixture in iso-cyanuric acid triallyl ester or trimethylolpropane trimethacrylate;
9. the fire-retardant Locomotive engine cable sheath material of sulfide type oil resistant according to claim 1, is characterized in that: described vulcanizing agent is dicumyl peroxide, α, α ' mixture of a kind of in-bis-(tert-butyl peroxy base) diisopropylbenzene(DIPB) or two kinds;
10. the preparation method of the fire-retardant Locomotive engine cable sheath material of sulfide type oil resistant as claimed in claim 1, its step comprises:
(1), good various raw material is weighed according to formula;
(2), by EVA resin, carboxylated nitrile rubber, compatilizer premix, the adding pressure type kneader being warmed up to 70-90 DEG C is dropped into, banburying mixing 3-6 minute;
(3), add fire retardant, oxidation inhibitor, Zinic stearas, zinc oxide, additional crosslinker, continue to mediate 5-10 minute;
(4), add vulcanizing agent, mediate and obtain banburying product in 3-5 minute;
(5), banburying product extruding pelletization, wind cold drying, reciprocating sieve are sieved, weigh, pack.
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| CN106009212A (en) * | 2016-05-18 | 2016-10-12 | 魏倩 | Power cable material for oil platform and preparation method of power cable material |
| CN106065125A (en) * | 2016-06-13 | 2016-11-02 | 芜湖卓越线束系统有限公司 | Abrasion resistant fire blocking wire harness sheath material and preparation method thereof |
| US11034825B2 (en) * | 2018-09-04 | 2021-06-15 | Therm-O-Link, Inc. | Flame retardant and thermally stable compositions for wire and cable |
| CN116435022A (en) * | 2023-05-12 | 2023-07-14 | 广东澳通特种电缆有限公司 | Low-smoke flame-retardant cable and preparation method thereof |
| KR102587325B1 (en) * | 2023-04-11 | 2023-10-13 | (주)지엔티 | A fireproof cover composition of cable tray and fabricating method thereof |
| CN118146598A (en) * | 2024-04-07 | 2024-06-07 | 扬州市红旗电缆制造有限公司 | Oil-resistant polyvinyl chloride cable |
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| KR102587325B1 (en) * | 2023-04-11 | 2023-10-13 | (주)지엔티 | A fireproof cover composition of cable tray and fabricating method thereof |
| CN116435022A (en) * | 2023-05-12 | 2023-07-14 | 广东澳通特种电缆有限公司 | Low-smoke flame-retardant cable and preparation method thereof |
| CN116435022B (en) * | 2023-05-12 | 2023-11-17 | 广东澳通特种电缆有限公司 | Low-smoke flame-retardant cable and preparation method thereof |
| CN118146598A (en) * | 2024-04-07 | 2024-06-07 | 扬州市红旗电缆制造有限公司 | Oil-resistant polyvinyl chloride cable |
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Application publication date: 20151014 |