CN109637703A - A kind of new-energy automobile high temperature resistant crack resistence insulated cable - Google Patents
A kind of new-energy automobile high temperature resistant crack resistence insulated cable Download PDFInfo
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- CN109637703A CN109637703A CN201811300974.6A CN201811300974A CN109637703A CN 109637703 A CN109637703 A CN 109637703A CN 201811300974 A CN201811300974 A CN 201811300974A CN 109637703 A CN109637703 A CN 109637703A
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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
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
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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
- 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
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- 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
- H01B7/0009—Details relating to the conductive cores
-
- 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
- H01B7/02—Disposition of insulation
- H01B7/0275—Disposition of insulation comprising one or more extruded layers of insulation
-
- 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
-
- 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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/187—Sheaths comprising extruded non-metallic layers
-
- 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
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
-
- 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
- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/04—Thermoplastic elastomer
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
A kind of new-energy automobile high temperature resistant crack resistence insulated cable, including center conductor, Particular thermoplastic's vulcanized rubber insulating layer, shielded layer and the Particular thermoplastic's vulcanized rubber restrictive coating being arranged from inside to outside.Particular thermoplastic's vulcanized rubber insulating layer and Particular thermoplastic's vulcanized rubber restrictive coating are made of Particular thermoplastic's vulcanized rubber, and raw material comprises the following components in parts by weight: 40 ~ 50 parts of EPDM；30 ~ 40 parts of PP；5 ~ 10 parts of POE；5 ~ 8 parts of PE；20 ~ 40 parts of alkane oil；1 ~ 4 part of anti-aging agent；1 ~ 4 part of antioxidant；2 ~ 5 parts of lubricant；2 ~ 3 parts of crosslinking agent；4 ~ 8 parts of zinc oxide；20 ~ 40 parts of phosphorus-nitrogen containing flame retardant.The flexibility and installability of cable entirety can be improved in the present invention, and has excellent tensile strength, elongation at break, tearing strength and high mechanical strength；Long-time service is not in cracking, and temperature resistant grade meets the heatproof requirement of new-energy automobile up to 150 DEG C.
Description
Technical field
The present invention relates to the technical fields of automobile cable structure, and in particular to a kind of new-energy automobile high temperature resistant crack resistence
Insulated cable.
Background technique
In the high-tension cable of new-energy automobile, the insulating layer and jacket layer material that early period selects are mainly TPE material
(thermoplastic elastic material), this material are not necessarily to cross-linking radiation, and with the advantage in production efficiency, but such material is mainly deposited
In the problem of Cracking of long-time service, this problem is the inherent characteristic of material itself, is not easy to improve, and the heatproof of the material can only
Reach 125 DEG C, is unable to satisfy higher heatproof requirement, so new energy cable primarily now all uses cross-linking radiation material,
Cross-linked material can solve the problem of Cracking of insulating layer and restrictive coating and improve the temperature resistant grade of material, but due to irradiation
The production efficiency of cable will be will affect by increasing.
Therefore, above-mentioned the shortcomings of the prior art how is solved, is become as the project of the invention to be researched and solved.
Summary of the invention
It is an object of the present invention to provide a kind of new-energy automobile high temperature resistant crack resistence insulated cables.
In order to achieve the above objectives, the technical solution adopted by the present invention is that:
A kind of new-energy automobile high temperature resistant crack resistence insulated cable, including the insulation of center conductor, Particular thermoplastic's vulcanized rubber
Layer, shielded layer and Particular thermoplastic's vulcanized rubber restrictive coating；
The center conductor is to be formed by annealing naked copper or tin plating stranded conductor by intersecting regular be twisted；
The periphery of the center conductor is closely coated with Particular thermoplastic's vulcanized rubber insulating layer, Particular thermoplastic vulcanization
The periphery of rubber insulation is closely coated with the shielded layer, and the periphery of the shielded layer is closely coated with Particular thermoplastic's sulphur
Change rubber sheath layer；
Particular thermoplastic's vulcanized rubber insulating layer and Particular thermoplastic's vulcanized rubber restrictive coating are by extraordinary thermoplastic
Property vulcanized rubber is made；
The raw material of Particular thermoplastic's vulcanized rubber comprises the following components in parts by weight:
40 ~ 50 parts of EPDM；
30 ~ 40 parts of PP；
5 ~ 10 parts of POE；
5 ~ 8 parts of PE；
20 ~ 40 parts of alkane oil；
1 ~ 4 part of anti-aging agent；
1 ~ 4 part of antioxidant；
2 ~ 5 parts of lubricant；
2 ~ 3 parts of crosslinking agent；
4 ~ 8 parts of zinc oxide；
20 ~ 40 parts of phosphorus-nitrogen containing flame retardant.
Related content in above-mentioned technical proposal is explained as follows:
1, in above scheme, Particular thermoplastic's vulcanized rubber is a kind of high fluidity TPV material, meets and squeezes out processing；EPDM refers to
Be ethylene propylene diene rubber, be the copolymer of ethylene, propylene and a small amount of non-conjugated diene hydrocarbon, be one kind of EP rubbers；PP
Refer to polypropylene；POE refers to polyolefin elastomer, is to have narrow molecular weight distribution using metallocene as catalyst
With the thermoplastic elastomer (TPE) of uniform short-chain branch distribution；PE refers to polyethylene, is a kind of aggregated thermoplasticity obtained of ethylene
Resin；Lubricant uses the mixture of silicone powder and silicone oil.
2, in above scheme, the melt index of the PP material is 4 ~ 15g/10min；Octene in the POE material contains
Amount is 25wt%, and the melt index of POE material is 0.2 ~ 3g/10min.
3, in above scheme, the Third monomer in the EPDM material is 5- ethylidene norbornene (ENB), and content is
8.1wt%；Ethylene contents in EPDM material are 52wt%.This formula rubber mobility is preferable, after the material matings such as polypropylene
It can satisfy high speed extrusion requirement.
4, in above scheme, the antioxidant use pentaerythritol ester and dilauryl thiodipropionate mixture, two
The ratio of person is 1:2；
The anti-aging agent is diacetayl amide thiophosphite, meets thermoplastic vulcanizate material by the cooperation of antioxidant
150 DEG C of chronic anti-aging performance.
5, in above scheme, the crosslinking agent uses peroxide cross-linking agent, which is peroxidating two
Isopropylbenzene, and esters of acrylic acid assistant crosslinking agent is added, the weight ratio of the two is 1:4.
6, in above scheme, the preparation of Particular thermoplastic's vulcanized rubber material uses Technology of Dynamic Vulcanized；
The first step first carries out EPDM, PP, POE and PE to be stirred 2 ~ 4min, until material granule is evenly distributed；
Second step sequentially adds lubricant, alkane oil, anti-aging agent, fire retardant, zinc oxide and carries out 4 ~ 7min of mixing, makes in raw material
Powder and liquid are sufficiently adsorbed on particle surface；
Third step is added mixer and plasticates, and temperature is set as 200 ~ 250 DEG C, and mixing time is 10 ~ 30min；
4th step is added crosslinking agent and assistant crosslinking agent, and continues 5 ~ 10min of mixing；
It is added after crosslinking agent, to prevent vulcanization of rubber excess after high temperature and shearing, influences the subsequent extrusion of material；Pass through crosslinking agent
Addition, the rubber phase in material can be made to be crosslinked under the action of high temperature and high shear, blending bullet can be greatly improved
The performance of property body.
5th step carries out material granulation using double screw extruder, screw rod steering be it is in the same direction, screw speed for 200 ~
400r/min, high shear are conducive to reduce dispersed partial size；Extrusion temperature control is 220 ~ 250 DEG C, and die orifice adds 2 ~ 4 layer 80 ~ 100
Purpose strainer, to improve material extrusion pressure and plasticizing effect；The step is the extrusion of material preparation.
6th step, material carry out cable extrusion process in processing temperature be 240 ~ 260 DEG C, screw speed be 10- ~
60rpm selects extrusion pressing type mold to facilitate material molding；The step is the extrusion of cable.
It is immediately entered in water after material extrusion mould-outlet, to reduce the volatilization of flue gas, while the first segment of sink uses warm water,
Temperature is 50 ~ 70 DEG C, and gradually reduces by 10 ~ 15 DEG C of water temperature backward up to normal-temperature water, to reduce since the first segment of sink
The stress of material is concentrated.
7, in above scheme, the shielded layer is double-layer shielding structure, and internal layer is tin-plating round copper wire braiding layer, and outer layer is aluminium
Layers of foil；The shielded layer is closely coated in the peripheral surface of the thermoplastic vulcanizates insulating layer.Double-layer shielding structure
It is greatly improved shield effectiveness, eliminates the interference of low frequency signal.
The aluminium foil layer restrictive coating can be isolated with braiding layer, keep the inner surface rounding of restrictive coating, improve restrictive coating
Compressive resistance.
8, in above scheme, the aluminium foil layer with a thickness of 0.035 ~ 0.045mm, using special high temperature resistant aluminium foil, the spy
High temperature resistant aluminium foil processed is suppressed using aluminium and Kapton；Aluminium foil layer closes the braiding layer with aluminium face paste.Compared to PE
Film heatproof significantly improves, and the material under high temperature not with restrictive coating reacts.
9, in above scheme, the component of the preferably following parts by weight of the raw material of Particular thermoplastic's vulcanized rubber:
42 ~ 49 parts of EPDM；
31 ~ 38 parts of PP；
5.5 ~ 9.8 parts of POE；
5.2 ~ 7.6 parts of PE；
23 ~ 37 parts of alkane oil；
1.2 ~ 3.4 parts of anti-aging agent；
1.1 ~ 3.6 parts of antioxidant；
2.3 ~ 4.5 parts of lubricant；
2.2 ~ 2.8 parts of crosslinking agent；
4.3 ~ 7.8 parts of zinc oxide；
22 ~ 38.5 parts of phosphorus-nitrogen containing flame retardant.
The working principle of the invention and advantage are as follows:
Compared to existing technologies, Particular thermoplastic's vulcanized rubber insulating layer of the invention and center conductor cladding are close, extraordinary
Thermoplastic vulcanizates restrictive coating and shielded layer cladding are close, and the flexibility and installability of cable entirety can be improved.Insulating layer
Particular thermoplastic's vulcanized rubber material is used with the material of restrictive coating, has excellent tensile strength, elongation at break, tearing strong
Degree and high mechanical strength；Between material molecule be uniformly mixed, intermolecular force is strong, long-time service be not in cracking, in addition its
Temperature resistant grade can achieve 150 DEG C, meet the heatproof requirement of most new-energy automobiles.
Detailed description of the invention
Attached drawing 1 is the schematic diagram of the section structure of the embodiment of the present invention.
In the figures above: 1, center conductor；2, Particular thermoplastic's vulcanized rubber insulating layer；3, Particular thermoplastic's vulcanized rubber
Restrictive coating；4, braiding layer；5, aluminium foil layer.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and embodiments:
Embodiment: as shown in Figure 1, a kind of new-energy automobile high temperature resistant crack resistence insulated cable, including center conductor 1, special type
Thermoplastic vulcanizates insulating layer 2, shielded layer and Particular thermoplastic's vulcanized rubber restrictive coating 3.
The center conductor 1 is to be formed by annealing naked copper or tin plating stranded conductor by intersecting regular be twisted.
The periphery of the center conductor 1 is closely coated with Particular thermoplastic's vulcanized rubber insulating layer 2, the special type thermoplastic
The periphery of property vulcanized rubber insulating layer 2 is closely coated with the shielded layer, and the periphery of the shielded layer is closely coated with the special type
Thermoplastic vulcanizates restrictive coating 3.
The shielded layer is double-layer shielding structure, and internal layer is tin-plating round copper wire braiding layer 4, and outer layer is aluminium foil layer 5；The screen
Layer is covered closely to be coated in the peripheral surface of the thermoplastic vulcanizates insulating layer 2.Double-layer shielding structure is greatly improved
Shield effectiveness eliminates the interference of low frequency signal.
The aluminium foil layer 5 Particular thermoplastic's vulcanized rubber restrictive coating 3 can be isolated with braiding layer 4, keep extraordinary thermoplastic
Property vulcanized rubber restrictive coating 3 inner surface rounding, improve the compressive resistance of Particular thermoplastic's vulcanized rubber restrictive coating 3.The aluminium
Layers of foil 5 with a thickness of 0.035 ~ 0.045mm, using special high temperature resistant aluminium foil, the special high temperature resistant aluminium foil is sub- using aluminium and polyamides
Amine film is suppressed；Aluminium foil layer 5 closes the braiding layer 4 with aluminium face paste, significantly improves compared to PE film temperature tolerance, and under high temperature
It will not react with the material of Particular thermoplastic's vulcanized rubber restrictive coating 3.
Particular thermoplastic's vulcanized rubber insulating layer 2 and Particular thermoplastic's vulcanized rubber restrictive coating 3 are by spy
Kind thermoplastic vulcanizates is made；
The raw material of Particular thermoplastic's vulcanized rubber comprises the following components in parts by weight:
40 ~ 50 parts of EPDM；
30 ~ 40 parts of PP；
5 ~ 10 parts of POE；
5 ~ 8 parts of PE；
20 ~ 40 parts of alkane oil；
1 ~ 4 part of anti-aging agent；
1 ~ 4 part of antioxidant；
2 ~ 5 parts of lubricant；
2 ~ 3 parts of crosslinking agent；
4 ~ 8 parts of zinc oxide；
20 ~ 40 parts of phosphorus-nitrogen containing flame retardant.
Wherein, Particular thermoplastic's vulcanized rubber is a kind of high fluidity TPV material, meets and squeezes out processing；EPDM is referred to
Ethylene propylene diene rubber is the copolymer of ethylene, propylene and a small amount of non-conjugated diene hydrocarbon, is one kind of EP rubbers；What PP referred to
It is polypropylene；POE refers to polyolefin elastomer, be using metallocene as catalyst have narrow molecular weight distribution and
The thermoplastic elastomer (TPE) of even short-chain branch distribution；PE refers to polyethylene, is a kind of aggregated thermoplastic resin obtained of ethylene；
Lubricant uses the mixture of silicone powder and silicone oil.
The melt index of the PP material is 4 ~ 15g/10min；Octene content in the POE material is 25wt%, POE
The melt index of material is 0.2 ~ 3g/10min.
Third monomer in the EPDM material is 5- ethylidene norbornene (ENB), content 8.1wt%；In EPDM material
Ethylene contents be 52wt%.This formula rubber mobility is preferable, wants with can satisfy high speed extrusion after the material matings such as polypropylene
It asks.
The antioxidant uses the mixture of pentaerythritol ester and dilauryl thiodipropionate, and the ratio of the two is 1:2；
The anti-aging agent is diacetayl amide thiophosphite, meets thermoplastic vulcanizate material by the cooperation of antioxidant
150 DEG C of chronic anti-aging performance.
The crosslinking agent uses peroxide cross-linking agent, which is cumyl peroxide, and is added
Esters of acrylic acid assistant crosslinking agent, the weight ratio of the two are 1:4.
Wherein, the preparation of Particular thermoplastic's vulcanized rubber material uses Technology of Dynamic Vulcanized；
The first step first carries out EPDM, PP, POE and PE to be stirred 2 ~ 4min, until material granule is evenly distributed；
Second step sequentially adds lubricant, alkane oil, anti-aging agent, fire retardant, zinc oxide and carries out 4 ~ 7min of mixing, makes in raw material
Powder and liquid are sufficiently adsorbed on particle surface；
Third step is added mixer and plasticates, and temperature is set as 200 ~ 250 DEG C, and mixing time is 10 ~ 30min；
4th step is added crosslinking agent and assistant crosslinking agent, and continues 5 ~ 10min of mixing；
It is added after crosslinking agent, to prevent vulcanization of rubber excess after high temperature and shearing, influences the subsequent extrusion of material；Pass through crosslinking agent
Addition, the rubber phase in material can be made to be crosslinked under the action of high temperature and high shear, blending bullet can be greatly improved
The performance of property body.
5th step carries out material granulation using double screw extruder, screw rod steering be it is in the same direction, screw speed for 200 ~
400r/min, high shear are conducive to reduce dispersed partial size；Extrusion temperature control is 220 ~ 250 DEG C, and die orifice adds 2 ~ 4 layer 80 ~ 100
Purpose strainer, to improve material extrusion pressure and plasticizing effect；The step is the extrusion of material preparation.
6th step, material carry out cable extrusion process in processing temperature be 240 ~ 260 DEG C, screw speed be 10- ~
60rpm selects extrusion pressing type mold to facilitate material molding；The step is the extrusion of cable.
It is immediately entered in water after material extrusion mould-outlet, to reduce the volatilization of flue gas, while the first segment of sink uses warm water,
Temperature is 50 ~ 70 DEG C, and gradually reduces by 10 ~ 15 DEG C of water temperature backward up to normal-temperature water, to reduce since the first segment of sink
The stress of material is concentrated.
Wherein, the component of the preferably following parts by weight of the raw material of Particular thermoplastic's vulcanized rubber:
42 ~ 49 parts of EPDM；
31 ~ 38 parts of PP；
5.5 ~ 9.8 parts of POE；
5.2 ~ 7.6 parts of PE；
23 ~ 37 parts of alkane oil；
1.2 ~ 3.4 parts of anti-aging agent；
1.1 ~ 3.6 parts of antioxidant；
2.3 ~ 4.5 parts of lubricant；
2.2 ~ 2.8 parts of crosslinking agent；
4.3 ~ 7.8 parts of zinc oxide；
22 ~ 38.5 parts of phosphorus-nitrogen containing flame retardant.
More preferably, the raw material of Particular thermoplastic's vulcanized rubber comprises the following components in parts by weight:
45 parts of EPDM；
34 parts of PP；
78 parts of POE；
66 parts of PE；
27 parts of alkane oil；
14 parts of anti-aging agent；
16 parts of antioxidant；
3.5 parts of lubricant；
3.8 parts of crosslinking agent；
5.8 parts of zinc oxide；
28 parts of phosphorus-nitrogen containing flame retardant.
Particular thermoplastic's vulcanized rubber insulating layer of the invention and center conductor cladding are close, Particular thermoplastic's vulcanized rubber
Restrictive coating and shielded layer cladding are close, and the flexibility and installability of cable entirety can be improved.The material of insulating layer and restrictive coating
Using Particular thermoplastic's vulcanized rubber material, there is excellent tensile strength, elongation at break, tearing strength and mechanical strength
It is high；It is uniformly mixed between material molecule, intermolecular force is strong, and long-time service is not in cracking, and in addition its temperature resistant grade can be with
Reach 150 DEG C, meets the heatproof requirement of most new-energy automobiles.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of new-energy automobile high temperature resistant crack resistence insulated cable, it is characterised in that:
Including center conductor, Particular thermoplastic's vulcanized rubber insulating layer, shielded layer and Particular thermoplastic's vulcanized rubber restrictive coating；
The center conductor is to be formed by annealing naked copper or tin plating stranded conductor by intersecting regular be twisted；
The periphery of the center conductor is closely coated with Particular thermoplastic's vulcanized rubber insulating layer, Particular thermoplastic vulcanization
The periphery of rubber insulation is closely coated with the shielded layer, and the periphery of the shielded layer is closely coated with Particular thermoplastic's sulphur
Change rubber sheath layer；
Particular thermoplastic's vulcanized rubber insulating layer and Particular thermoplastic's vulcanized rubber restrictive coating are by extraordinary thermoplastic
Property vulcanized rubber is made；
The raw material of Particular thermoplastic's vulcanized rubber comprises the following components in parts by weight:
40 ~ 50 parts of EPDM；
30 ~ 40 parts of PP；
5 ~ 10 parts of POE；
5 ~ 8 parts of PE；
20 ~ 40 parts of alkane oil；
1 ~ 4 part of anti-aging agent；
1 ~ 4 part of antioxidant；
2 ~ 5 parts of lubricant；
2 ~ 3 parts of crosslinking agent；
4 ~ 8 parts of zinc oxide；
20 ~ 40 parts of phosphorus-nitrogen containing flame retardant.
2. cable according to claim 1, it is characterised in that: the melt index of the PP material is 4 ~ 15g/10min.
3. cable according to claim 1, it is characterised in that: the octene content in the POE material is 25wt%, POE material
The melt index of material is 0.2 ~ 3g/10min.
4. cable according to claim 1, it is characterised in that: the Third monomer in the EPDM material is that ice drops in 5- ethylidene
Piece alkene, content 8.1wt%；Ethylene contents in EPDM material are 52wt%.
5. cable according to claim 1, it is characterised in that: the antioxidant uses pentaerythritol ester and thio-2 acid
The mixture of dilauryl, the ratio of the two are 1:2；
The anti-aging agent is diacetayl amide thiophosphite, meets thermoplastic vulcanizate material by the cooperation of antioxidant
150 DEG C of chronic anti-aging performance.
6. cable according to claim 1, it is characterised in that: the crosslinking agent uses peroxide cross-linking agent, the peroxide
Compound crosslinking agent is cumyl peroxide, and adds esters of acrylic acid assistant crosslinking agent, and the weight ratio of the two is 1:4.
7. cable according to claim 1, it is characterised in that: the preparation of Particular thermoplastic's vulcanized rubber material uses
Technology of Dynamic Vulcanized；
The first step first carries out EPDM, PP, POE and PE to be stirred 2 ~ 4min, until material granule is evenly distributed；
Second step sequentially adds lubricant, alkane oil, anti-aging agent, fire retardant, zinc oxide and carries out 4 ~ 7min of mixing, makes in raw material
Powder and liquid are sufficiently adsorbed on particle surface；
Third step is added mixer and plasticates, and temperature is set as 200 ~ 250 DEG C, and mixing time is 10 ~ 30min；
4th step is added crosslinking agent and assistant crosslinking agent, and continues 5 ~ 10min of mixing；
5th step, using double screw extruder carry out material granulation, screw rod steering be it is in the same direction, screw speed be 200 ~ 400r/
Min, extrusion temperature control are 220 ~ 250 DEG C, and die orifice adds the strainer of 2 ~ 4 layer of 80 ~ 100 mesh；
6th step, it is 240 ~ 260 DEG C that material, which carries out the processing temperature in cable extrusion process, and screw speed is 10- ~ 60rpm, choosing
Facilitate material molding with extrusion pressing type mold；
It is immediately entered in water after material extrusion mould-outlet, to reduce the volatilization of flue gas, while the first segment of sink uses warm water, temperature
It is 50 ~ 70 DEG C, and gradually reduces by 10 ~ 15 DEG C of water temperature backward up to normal-temperature water, to reduce material since the first segment of sink
Stress concentrate.
8. cable according to claim 1, it is characterised in that: the shielded layer is double-layer shielding structure, and internal layer is tin plating
Circular copper wire braiding layer, outer layer are aluminium foil layer；The shielded layer is closely coated in the outer of the thermoplastic vulcanizates insulating layer
In perimeter surface.
9. cable according to claim 8, it is characterised in that: the aluminium foil layer with a thickness of 0.035 ~ 0.045mm, use
Special high temperature resistant aluminium foil, the special high temperature resistant aluminium foil are suppressed using aluminium and Kapton；Aluminium foil layer is with the conjunction of aluminium face paste
The braiding layer.
10. cable according to claim 1, it is characterised in that:
The component of the preferably following parts by weight of the raw material of Particular thermoplastic's vulcanized rubber:
42 ~ 49 parts of EPDM；
31 ~ 38 parts of PP；
5.5 ~ 9.8 parts of POE；
5.2 ~ 7.6 parts of PE；
23 ~ 37 parts of alkane oil；
1.2 ~ 3.4 parts of anti-aging agent；
1.1 ~ 3.6 parts of antioxidant；
2.3 ~ 4.5 parts of lubricant；
2.2 ~ 2.8 parts of crosslinking agent；
4.3 ~ 7.8 parts of zinc oxide；
22 ~ 38.5 parts of phosphorus-nitrogen containing flame retardant.
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| CN201811300974.6A CN109637703A (en) | 2018-11-02 | 2018-11-02 | A kind of new-energy automobile high temperature resistant crack resistence insulated cable |
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| CN201811300974.6A CN109637703A (en) | 2018-11-02 | 2018-11-02 | A kind of new-energy automobile high temperature resistant crack resistence insulated cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111785415A (en) * | 2020-07-02 | 2020-10-16 | 江苏亨通电子线缆科技有限公司 | Scratch-resistant and bending-resistant motor connecting cable for new energy automobile |
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Application publication date: 20190416 |