CN108305707B - Low-smoke halogen-free flame-retardant power cable - Google Patents

Low-smoke halogen-free flame-retardant power cable Download PDF

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CN108305707B
CN108305707B CN201711495549.2A CN201711495549A CN108305707B CN 108305707 B CN108305707 B CN 108305707B CN 201711495549 A CN201711495549 A CN 201711495549A CN 108305707 B CN108305707 B CN 108305707B
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power cable
ethylene
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CN108305707A (en
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孙中奇
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Shanghai Changshun Elevator Cable Co ltd
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Shanghai Changshun Elevator Cable Co ltd
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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
    • H01B7/02—Disposition of insulation
    • H01B7/0275—Disposition of insulation comprising one or more extruded layers of insulation
    • 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
    • C08L23/04—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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • 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
    • H01B7/0045—Cable-harnesses
    • 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
    • H01B7/041—Flexible cables, conductors, or cords, e.g. trailing cables attached to mobile objects, e.g. portable tools, elevators, mining equipment, hoisting cables
    • 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
    • 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
    • H01B7/1875—Multi-layer sheaths
    • 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
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/2806—Protection against damage caused by corrosion
    • 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
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
    • H01B7/285—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable
    • 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
    • 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
    • H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
    • H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
    • H01B7/423—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/006—Constructional features relating to the conductors
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2217—Oxides; Hydroxides of metals of magnesium
    • C08K2003/2224—Magnesium hydroxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/02—Flame or fire retardant/resistant
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/22—Halogen free composition
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • 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
    • 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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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Organic Insulating Materials (AREA)
  • Insulated Conductors (AREA)

Abstract

The invention discloses a low-smoke halogen-free flame-retardant power cable which comprises a core wire, a filling layer, a wrapping layer and a sheath layer, wherein the core wire comprises a conductor and an insulating layer extruded outside the conductor, the insulating layer is made of a cross-linked polyethylene material, and the sheath layer is a safe, environment-friendly, granular, low-smoke halogen-free flame-retardant and environment-friendly sheath material; an oxygen isolating layer and a glass fiber belting layer are arranged between the wrapping layer and the sheath layer from inside to outside. The insulating layer is made of cross-linked polyethylene material, the sheath layer is made of low-smoke halogen-free flame-retardant ring protective sleeve material, and the cable sheath is excellent in flexibility, tensile property, low-temperature performance, halogen-free low-smoke performance compatibility and good in flame retardance.

Description

Low-smoke halogen-free flame-retardant power cable
Technical Field
The invention relates to the technical field of elevator cables, and mainly relates to a low-smoke halogen-free flame-retardant power cable.
Background
Along with the maturity of elevator technique in our country, the use of elevator is also more and more, can need install the cable conductor in the elevator installation for provide the power for the elevator, along with the lift operation of elevator, damage the distribution cable easily or cause signal interference easily, the suitability and the practicality of cable receive the restriction. The elevator is essential equipment of riding instead of walk in high-rise building, along with the development of science and technology and the needs of people's work life, needs some activities such as communication and control in the elevator, for this reason, still need hang relevant signal line in the elevator, with the lift of elevator together relapse, in the use, the cable is frequently receive and is drawn, influences life, probably breaks away, damages, brings the consequence of other relevant function interruptions.
Disclosure of Invention
The invention aims to solve the technical problem of providing a low-smoke halogen-free flame-retardant power cable which has the advantages of excellent flexibility, tensile property, low-temperature performance, halogen-free low-smoke performance and compatibility, good flame retardance, an armor layer, mouse bite prevention and cable service life prolonging.
The technical problem to be solved by the invention can be realized by adopting the following technical scheme:
a low-smoke halogen-free flame-retardant power cable comprises core wires, a filling layer arranged on the inner side of a plurality of core wires, a polyester tape winding layer covering the periphery of the core wires, and a sheath layer arranged on the outer side of the winding layer, wherein the core wires comprise conductors and insulating layers extruded on the outer sides of the conductors; the low-smoke halogen-free flame-retardant ring protective sleeve material comprises the following components in parts by weight:
100 parts of polyolefin elastomer resin, 120-160 parts of graphene composite flame retardant, 0.5-1.5 parts of antioxidant and 1-3 parts of lubricant;
an oxygen isolating layer and a glass fiber belting layer are arranged between the wrapping layer and the sheath layer from inside to outside, a plurality of convex blocks are concentrically embedded in the outer wall of the glass fiber belting layer at equal intervals, and the other ends of the convex blocks are embedded in the inner wall of the sheath layer; the glass fiber belting layer and the sheath layer are separated by the bumps to form a plurality of containing cavities, and an anti-corrosion grease layer and cooling liquid are filled in every two adjacent containing cavities at intervals.
In a preferred embodiment of the present invention, the polyolefin elastomer resin is a mixture of three resins, i.e., an infusi (tm) Olefin Block Copolymer (OBCs), an ethylene- α olefin copolymer elastomer (POE), and an ethylene-vinyl acetate copolymer (EVA).
In a preferred embodiment of the present invention, the polyolefin elastomer resin is a mixture of, by weight, 20 to 50 parts of INFUSETM Olefin Block Copolymers (OBCs), 20 to 50 parts of ethylene- α olefin copolymer elastomer (POE), and 20 to 50 parts of ethylene-vinyl acetate copolymer (EVA).
In a preferred embodiment of the present invention, the INFUSETM Olefin Block Copolymers (OBCs) have a density of from 0.870 to 0.885g/cm3And the melt index is 0.5-5g/10 min.
In a preferred embodiment of the present invention, the ethylene- α olefin copolymer elastomer (POE) is an ethylene-butene or ethylene-octene copolymer having a melt index of 18 to 30g/10 min.
In a preferred embodiment of the present invention, the ethylene-vinyl acetate copolymer (EVA) is an ethylene-vinyl acetate copolymer resin having a vinyl acetate content of 28 to 40% in the molecule;
in a preferred embodiment of the invention, the graphene compound flame retardant is prepared by compounding the following components in parts by weight: 100 parts of aluminum hydroxide, 20-50 parts of magnesium hydroxide and 2-10 parts of graphene powder particles.
In a preferred embodiment of the invention, the thickness of the graphene powder particles is 10nm, and the D50 particle size is less than or equal to 1.5/um.
In a preferred embodiment of the present invention, the antioxidant is one or a mixture of any two or more of pentaerythritol tetrakis [ β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ], dilauryl thiodipropionate, 4' -thiobis (6-tert-butyl-3-methylphenol), tris [2, 4-di-tert-butylphenyl ] phosphite or n-octadecyl β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate.
In a preferred embodiment of the present invention, the lubricant is one or a mixture of any two or more of silicone oil, silicone master batch, PE wax, fatty acid or fatty acid salt (such as zinc stearate).
The invention has the beneficial effects that: the utility model provides a low smoke and zero halogen fire-retardant power cable, the insulating layer adopts cross-linked polyethylene material to make, and the restrictive coating adopts low smoke and zero halogen fire-retardant ring protective sheath material to constitute, and compliance, pull resistance, low temperature performance, halogen-free low smoke compatible performance are good, have good fire resistance, and the inside packing has anticorrosive grease layer, coolant liquid, has the anticorrosion function.
Drawings
Fig. 1 is a schematic structural diagram of a low-smoke halogen-free flame-retardant power cable according to the invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Referring to fig. 1, a low-smoke halogen-free flame-retardant power cable is shown, which includes core wires 100, a filling layer 200 disposed inside the core wires 100, a polyester tape wrapping layer 300 wrapping around the core wires 100, and a sheath layer 400 disposed outside the wrapping layer 300, wherein the core wires 100 include conductors 110 and insulating layers 120 extruded outside the conductors 110, the core wires 100 are brown, blue, black, gray, and yellow-green, and an aluminum alloy cable core 130 is disposed between two core wires 100; the conductor 110 is formed by stranding and compound stranding of a plurality of strands of soft copper wires with a fifth type structure by using a wire and cable stranding machine, and the diameter of a single wire is 0.26 mm; the filling layer 200 is made of teflon rubber material.
The insulating layer 120 is made of cross-linked polyethylene material, and the average thickness is 1.0 mm; the sheath layer 400 is a safe, environment-friendly, granular, low-smoke, halogen-free, flame-retardant and environment-friendly sheath material, and the average thickness is 1.8 mm; a waterproof mineral mud layer 500 is filled between the insulating layer 120 and the wrapping layer 300. The insulating layer 120 is made of cross-linked polyethylene material, the sheath layer 400 is made of low-smoke halogen-free flame-retardant ring protective sheath material, and the sheath layer has excellent flexibility, tensile property, low-temperature performance, halogen-free low-smoke performance compatibility and good flame retardance; the tensile strength of the cable before aging is 17-18N/mm2The elongation at break is 300-350%; in a hot extension test (200 ℃, 15min 20N/mm)2) Wherein the elongation under load is 50-73% and the permanent elongation after cooling is 0-3%.
Be provided with first armor 610 in the insulating layer 120 outside, be provided with second armor 620 around covering 300 inboard, be provided with the first thorn 611 of colluding, the second of colluding that a plurality of embedding waterproof mineral mud layer 500 in the surface of first armor 610, second armor 620 respectively and collude thorn 621, it can also prevent the mouse to sting to have the armor, extension cable life.
An oxygen isolating layer 700 and a glass fiber wrapping layer 800 are arranged between the wrapping layer 300 and the sheath layer 400 from inside to outside, a plurality of convex blocks 910 are concentrically embedded in the outer wall of the wrapping layer 800 at equal intervals, and the other ends of the convex blocks 910 are embedded in the inner wall of the sheath layer 400; the glass fiber belting layer 800 and the sheath layer 400 are separated by the bumps 910 to form a plurality of accommodating cavities 920, and an anti-corrosion grease layer 930 and a cooling liquid 940 are respectively filled in every two adjacent accommodating cavities 920 at intervals, so that the glass fiber belting layer has an anti-corrosion function.
The low-smoke halogen-free flame-retardant environment-friendly sheath material is prepared from the following raw materials of examples 1-5, and the formula is shown in table 1.
Table 1:
composition of Example 1 Example 2 Example 3 Example 4 Example 5 Comparative example
OBCs 30 40 30 40 50 /
POE 30 30 20 20 20 20
EVA 40 30 50 40 30 80
Aluminum hydroxide 100 100 100 100 100 100
Magnesium hydroxide 20 30 30 40 60 60
Graphene 8 5 5 2 1 /
Polyethylene wax 0.6 0.6 0.6 0.6 0.6 0.6
Silicone oil 0.5 0.5 0.5 0.5 0.5 0.5
DLTP 0.5 0.5 0.5 0.5 0.5 0.5
1010 0.5 0.5 0.5 0.5 0.5 0.5
Zinc stearate 0.3 0.3 0.3 0.3 0.3 0.3
The preparation method of the low-smoke halogen-free flame-retardant environment-friendly sheath material comprises the following steps:
preparation of the compound flame retardant: proportionally mixing the components of aluminum hydroxide, magnesium hydroxide and graphene at a high speed for 5-10 min at a high-speed mixing speed of 500-800 rpm, proportionally injecting an antioxidant, a lubricant and other auxiliaries, and continuously mixing at a high speed for 5 min.
The invention relates to plasticizing, mixing and granulating of a graphene synergistic flame-retardant polyolefin cable sheath material for an elevator cable, which comprises the following steps:
mixing, plasticizing and granulating by using an SDJ75-180 type (double screw/single screw) unit, wherein a main unit comprises a double screw mixing area for main feeding and lateral feeding, a single screw homogenizing and granulating area, an auxiliary unit comprises a centrifugal dehydrator and a fluidized bed, and the whole mixing, plasticizing, extruding, granulating, dehydrating and drying are completed on the unit.
The components of the polyolefin elastomer resin and the graphene compound flame retardant enter a double-screw extruder through different feeding ports according to a formula, the polyolefin elastomer resin and 40-70% of the graphene compound flame retardant are fed at a main feeding port of the double-screw extruder, the rest 60-30% of the graphene compound flame retardant is fed at a side feeding port of the double-screw extruder and injected into the double screws, and the graphene synergistic flame retardant polyolefin cable sheath material for the elevator trailing cable is prepared through mixing, extrusion plasticizing, granulation, drying and cooling of a double-screw extruder set.
The temperature of the twin-screw mixer was set as follows: the compression section is 85-95 ℃, the homogenization section is 105-125 ℃, and the temperature of the single screw is 100-125 ℃.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents.

Claims (10)

1. A low-smoke halogen-free flame-retardant power cable comprises a core wire, a filling layer arranged on the inner side of a plurality of core wires, a polyester tape winding layer covering the periphery of the core wires, and a sheath layer arranged on the outer side of the winding layer, wherein the core wire comprises a conductor and an insulating layer extruded on the outer side of the conductor; the low-smoke halogen-free flame-retardant ring protective sleeve material comprises the following components in parts by weight:
100 parts of polyolefin elastomer resin, 120-160 parts of graphene composite flame retardant, 0.5-1.5 parts of antioxidant and 1-3 parts of lubricant;
an oxygen isolating layer and a glass fiber belting layer are arranged between the wrapping layer and the sheath layer from inside to outside, a plurality of convex blocks are concentrically embedded in the outer wall of the glass fiber belting layer at equal intervals, and the other ends of the convex blocks are embedded in the inner wall of the sheath layer; the glass fiber belting layer and the sheath layer are separated by the bumps to form a plurality of containing cavities, and an anticorrosive grease layer and cooling liquid are respectively filled in every two adjacent containing cavities at intervals;
the waterproof mineral mud layer is filled between the insulating layer and the wrapping layer, the first armor layer is arranged on the outer side of the insulating layer, the second armor layer is arranged on the inner side of the wrapping layer, and the first hook thorn and the second hook thorn which are embedded into the waterproof mineral mud layer are respectively arranged on the outer surfaces of the first armor layer and the second armor layer.
2. The low smoke, zero halogen and flame retardant power cable as claimed in claim 1, wherein said polyolefin elastomer resin is a mixture of three resins of INFUSETM Olefin Block Copolymers (OBCs), ethylene- α olefin copolymer elastomer (POE) and ethylene-vinyl acetate copolymer (EVA).
3. The low smoke zero halogen flame retardant power cable of claim 1 wherein the polyolefin elastomer resin is a mixture of, by weight, 20-50 parts of INFUSETM Olefin Block Copolymers (OBCs), 20-50 parts of ethylene- α olefin copolymer elastomer (POE) and 20-50 parts of ethylene-vinyl acetate copolymer (EVA).
4. The low smoke, zero halogen, flame retardant power cable of claim 2 wherein said infusi (tm) Olefin Block Copolymers (OBCs) have a density of 0.870 to 0.885g/cm3And the melt index is 0.5-5g/10 min.
5. The low smoke zero halogen flame retardant power cable of claim 2, wherein the ethylene- α olefin copolymer elastomer (POE) is ethylene-butene or ethylene-octene copolymer with a melt index of 18-30g/10 min.
6. The low smoke zero halogen flame retardant power cable of claim 2, wherein the ethylene-vinyl acetate copolymer (EVA) is an ethylene-vinyl acetate copolymer resin having a vinyl acetate content of 28-40% in the molecule.
7. The low-smoke halogen-free flame-retardant power cable as claimed in claim 1, wherein the graphene composite flame retardant is compounded from the following components in parts by weight: 100 parts of aluminum hydroxide, 20-50 parts of magnesium hydroxide and 2-10 parts of graphene powder particles.
8. The low smoke zero halogen flame retardant power cable of claim 7, wherein the thickness of said graphene powder particles is 10nm, and the D50 particle size is less than or equal to 1.5/um.
9. A low smoke zero halogen flame retardant power cable as claimed in claim 1, characterized in that said antioxidant is one or a mixture of any two or more of pentaerythrityl tetrakis [ β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ], dilauryl thiodipropionate, 4' -thiobis (6-tert-butyl-3-methylphenol), tris [2, 4-di-tert-butylphenyl ] phosphite or n-octadecyl β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate.
10. The low-smoke zero-halogen flame-retardant power cable according to claim 1, wherein the lubricant is one or a mixture of any two or more of silicone oil, silicone master batch, PE wax, fatty acid or fatty acid salt.
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CN104893080B (en) * 2015-03-31 2017-07-28 中广核三角洲（苏州）高聚物有限公司 Nuclear power 1 E-level K 3-type cable Halogen-free flame retardant sheath material
CN106633341B (en) * 2016-11-15 2019-09-13 上海新上化高分子材料有限公司 Elevator cable crosslinked with silicane low smoke halogen-free flame-retardant polyolefin elastomers material and preparation method
CN206497770U (en) * 2017-03-07 2017-09-15 深圳市顺电工业电缆有限公司 A kind of special acid/alkali-resistant cable of laser welding apparatus

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