CN106057346A - High-flexibility long-distance communication flexible cable - Google Patents

High-flexibility long-distance communication flexible cable Download PDF

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Publication number
CN106057346A
CN106057346A CN201610541205.XA CN201610541205A CN106057346A CN 106057346 A CN106057346 A CN 106057346A CN 201610541205 A CN201610541205 A CN 201610541205A CN 106057346 A CN106057346 A CN 106057346A
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China
Prior art keywords
parts
polyethylene
polyvinyl chloride
layer
flexible cable
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CN201610541205.XA
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CN106057346B (en
Inventor
王存良
杨迪
曹小娟
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Jiangsu Hengtong Wire and Cable Technology Co Ltd
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Jiangsu Hengtong Wire and Cable Technology 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
    • H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/005—Quad constructions
    • 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
    • C08L23/06—Polyethene
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • 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
    • H01B7/0208—Cables with several layers of insulating material
    • H01B7/0216—Two 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
    • 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
    • H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
    • H01B7/1825—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of a high tensile strength core
    • 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
    • H01B7/184—Sheaths comprising grooves, ribs or other projections
    • 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
    • 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
    • H01B7/29—Protection against damage caused by extremes of temperature or by 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
    • H01B7/17—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
    • 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
    • C08K2201/00—Specific properties of additives
    • C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
    • 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
    • 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
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • 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
    • C08L2205/02—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
    • 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
    • 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
    • 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
    • C08L2207/06—Properties of polyethylene
    • C08L2207/062—HDPE
    • 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
    • C08L2207/06—Properties of polyethylene
    • C08L2207/066—LDPE (radical process)
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation

Abstract

The invention discloses a high-flexibility long-distance communication flexible cable. A first sheath layer wraps the outer surfaces of two copper conductors, and a second sheath layer wraps the outer surface of a steel wire; a bar-shaped connecting portion is disposed between the first sheath layer and the second sheath layer, and the left side and the right side of the bar-shaped connecting portion are each provided with a V-shaped groove; the first sheath layer is composed of a polyvinyl chloride layer disposed at an inner side and a thermoplastic polyurethane layer disposed at an outer side; and the polyvinyl chloride layer is composed of the following components: 55 parts of low-density polyethylene, 45 parts of high-density polyethylene, 26 parts of diethyl phthalate, 25 parts of trioctyl trimellitate, 20 parts of calcium carbonate, 5 parts of calcium ricinoleate, 4.8 parts of di(3,5-tert-butyl-4-hydroxyphenyl)thioether, 1.2 parts of stearinic acid and 0.9 part of Tissuemat E. The high-flexibility long-distance communication flexible cable improves the heat stability effect and radiation resistance of the first sheath layer, at the same time, improves the insulation performance, surface wear resistance and surface hardness, is excellent in surface mist-surface matt effect and reduces the shrinkage of a material.

Description

High-flexibility telecommunication flexible cable
Technical field
The present invention relates to a kind of communication cable, particularly relate to a kind of high-flexibility telecommunication flexible cable.
Background technology
The core insulating outer layer of the general multicore cable of data cable has restrictive coating to protect, so resistance to environmental requirement is relatively low, but by Extruding sheath secondary sulfurizing course in pass through, plastic material is extruded by low temperature extruding machine, the most assorted to secondary sulfurizing course Special Influence, but plastic insulation poor performance, the most aging, mechanical performance environmental resistance is poor.It is primarily present techniques below to ask Topic: (1) is when requiring to improve the many indexes such as insulating properties, against weather and fire resistance simultaneously, it is difficult to take into account simultaneously, past Toward causing wherein part index number to decline or difficult raising；(2) cable is when under tension is torn, and stress point all can be concentrated, and cable is very Easily just separated, the cable core of destructible cable；(3) heat stability and radiotolerant characteristic are poor, insulating properties, surface abrasion resistance Property and case hardness, the most to be improved.How to solve above-mentioned technical problem and become the direction that those skilled in the art make great efforts.
Summary of the invention
The present invention provides a kind of high-flexibility telecommunication flexible cable, and this high-flexibility telecommunication flexible cable improves Insulating properties, against weather and fire resistance, it also avoid owing to materials variances is relatively big simultaneously, the lamination that causes, Improve polyvinyl chloride layer, the thermoplastic urethane layers contact surface compatibility and firmness, improve the reliability of properties of product And service life.
For reaching above-mentioned purpose, the technical solution used in the present invention is: a kind of high-flexibility telecommunication flexible cable, bag Including steel wire and 4 heart yearns being coated with polyethylene layer, this heart yearn is by being positioned at the polyethylene strip at center and stranded outside polyethylene strip 6 copper conductor compositions on surface；
First restrictive coating is coated on 2 described copper conductor outer surfaces, and the second restrictive coating is coated on steel wire outer surface；One bar shaped connects Portion is positioned between the first restrictive coating and the second restrictive coating, and this bar shaped connecting portion arranged on left and right sides is equipped with v-depression；Described first Restrictive coating by being positioned at the polyvinyl chloride layer of inner side and being positioned at the thermoplastic urethane layers in outside and form, the first polyethylene rope, second Polyethylene rope is positioned at bar shaped connecting portion inside and lays respectively at v-depression both sides；Have if circumferentially distributed in described polyethylene layer Dry pore；
Described polyvinyl chloride layer is composed of the following components: melt index is the Low Density Polyethylene 55 parts of 1 ~ 8g/10min, melts Index is the high density polyethylene (HDPE) 45 parts of 1 ~ 8g/10min, diethyl phthalate 26 parts, trioctyl trimellitate (TOTM) 25 parts, carbon Acid calcium 20 parts, calcium ricinoleate 5 parts, double (3,5-tri-grades of butyl-4-hydroxy phenyls) thioether 4.8 parts, stearic acid 1.2 parts, polyethylene 0.9 part of wax；
Described thermoplastic urethane layers is composed of the following components: 100 parts of thermoplastic poly ammonia phenol elastomer, melt index are 1 ~ 8g/ The Low Density Polyethylene of 10min 11 parts, ethylene ethyl acrylate 15 parts, ethylene-butylene copolymer 6 parts, silicon dioxide 4.2 parts, fourth Nitrile complex 18 parts, chlorinated polyethylene 5 parts, zinc 6 parts, 12 parts of magnesium hydroxide, compound molybdenum smoke suppressant 2 parts, montmorillonite 4.5 Part, calcium-zinc composite stabilizing agent 1 part, double (3,5-tri-grades of butyl-4-hydroxy phenyls) thioether 3 parts, zinc stearate 4 parts.
Technique scheme is further improved technical scheme as follows:
1. in such scheme, if the surface that described polyvinyl chloride layer contacts with thermoplastic urethane layers has been uniformly distributed circumferentially Dry projection.
2., in such scheme, the surface that described polyvinyl chloride layer contacts with thermoplastic urethane layers is uniformly distributed circumferentially There are several projections.
Owing to technique scheme is used, the present invention compared with prior art has the advantage that
High-flexibility telecommunication flexible cable the most of the present invention, described first restrictive coating by be positioned at inner side polyvinyl chloride layer and Being positioned at the thermoplastic urethane layers composition in outside, described polyvinyl chloride layer includes that the low-density that melt index is 1 ~ 8g/10min is gathered Ethylene 50 ~ 70 parts, melt index is the high density polyethylene (HDPE) 35 ~ 45 parts of 1 ~ 8g/10min, diethyl phthalate 25 ~ 35 Part, thermoplastic urethane layers includes 80 ~ 100 parts of thermoplastic poly ammonia phenol elastomer, and the melt index of collocation is 1 ~ 8g/10min's Low Density Polyethylene 10 ~ 20 parts, ethylene ethyl acrylate 8 ~ 15 parts, calcium-zinc composite stabilizing agent 1 ~ 3 part, double (3,5-tri-grades of butyl- 4-hydroxy phenyl) thioether 1 ~ 3 part, zinc stearate 2 ~ 4 parts so that the first restrictive coating combines respective advantage, improves insulating properties Energy, against weather and fire resistance, it also avoid owing to materials variances is relatively big simultaneously, and the lamination caused improves poly- Pvdc layer, the thermoplastic urethane layers contact surface compatibility and firmness, improve the reliability of properties of product and use the longevity Life.
High-flexibility telecommunication flexible cable the most of the present invention, its polyvinyl chloride layer uses tri trimellitate pungent further Ester 18 ~ 25 parts, calcium carbonate 20 ~ 30 parts, calcium ricinoleate 1 ~ 5 part, double (3,5-tri-grades of butyl-4-hydroxy phenyls) thioether 2 ~ 5 parts, firmly Fat acid 1 ~ 5 part, Tissuemat E 0.5 ~ 1 part；Thermoplastic urethane layers uses ethylene-butylene copolymer 5 ~ 10 parts, titanium dioxide further Silicon 4 ~ 8 parts, butyronitrile complex 8 ~ 20 parts, chlorinated polyethylene 5 ~ 10 parts, improve the first restrictive coating thermal stability result, resistance to irradiation Characteristic, improve insulating properties, surface abrasion resistance and case hardness simultaneously, surface cloudy surface matte effect is excellent and reduces material Shrinkage factor.
High-flexibility telecommunication flexible cable the most of the present invention, is positioned at polyvinyl chloride layer outer surface in its first restrictive coating Thermoplastic urethane layers contain zinc 5 ~ 15 parts further, 5 ~ 12 parts of magnesium hydroxide, compound molybdenum smoke suppressant 2 ~ 8 parts, cover de- Soil 1 ~ 5 part and with other component synergism, improve greatly Flame Retardancy energy, the oxygen index (OI) representing anti-flammability is high, and Make material have good one-tenth charcoal effect when burning, define stable hollow activated carbon composite structure, prevent the two of material Secondary burning and flame are propagated.
High-flexibility telecommunication flexible cable the most of the present invention, its heart yearn by be positioned at center polyethylene strip and stranded in 6 copper conductor compositions of polyethylene strip outer surface are on the basis of ensureing self-supporting cable tensile strength, by using in neck Between both sides respectively increase by one V-type groove, the first polyethylene rope, the second polyethylene rope are positioned at that bar shaped connecting portion is internal and position respectively In v-depression both sides, cable is when under tension is torn, and stress point all can concentrate on V-type groove part, cable be easy for by Separate, and the cable core of cable will not be destroyed；Secondly, outside described first restrictive coating is by being positioned at the polyvinyl chloride layer of inner side and being positioned at The thermoplastic urethane layers composition of side, the surface that described polyvinyl chloride layer contacts with thermoplastic urethane layers is uniformly distributed circumferentially There are several projections, all have containing several cavities in external sheath layer, under a stretching force, both achieved high insulation, and also realized Corrosion-resistant, and restrictive coating do not separates or is layered, and improves reliability and the life-span of product, also improves the transporting of cable Can, improve again pliability, prevent from being frequently bended and cause polyvinyl chloride layer, thermoplastic urethane layers cracking or layering.
Accompanying drawing explanation
Accompanying drawing 1 is high-flexibility telecommunication soft cable structure schematic diagram of the present invention；
Accompanying drawing 2 is the partial structurtes schematic diagram of accompanying drawing 1.
In the figures above: 1, steel wire；2, heart yearn；21, polyethylene layer；3, the first restrictive coating；31, polyvinyl chloride layer；32, heat Plastic polyurethane layer；4, the second restrictive coating；5, bar shaped connecting portion；6, v-depression；7, projection；81, the first polyethylene rope；82, Dimerized vinyl rope；9, pore；10, polyethylene strip；11, copper conductor.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment the invention will be further described:
Embodiment: a kind of high-flexibility telecommunication flexible cable, including steel wire 1 and 4 heart yearns being coated with polyethylene layer 21 2, this heart yearn 2 is made up of the polyethylene strip 10 and stranded 6 copper conductors 11 in polyethylene strip 10 outer surface being positioned at center；
First restrictive coating 3 is coated on 2 described copper conductor 2 outer surfaces, and the second restrictive coating 4 is coated on steel wire 1 outer surface；One bar shaped Connecting portion 5 is between the first restrictive coating 3 and the second restrictive coating 4, and this bar shaped connecting portion 5 arranged on left and right sides is equipped with v-depression 6； Described first restrictive coating 3 is made up of with the thermoplastic urethane layers 32 being positioned at outside the polyvinyl chloride layer 31 being positioned at inner side, and first Polyethylene rope the 81, second polyethylene rope 82 is positioned at bar shaped connecting portion 5 inside and lays respectively at v-depression 6 both sides；Described polyethylene Circumferentially distributed in layer 21 have several pores 9.
It is convex that the surface that above-mentioned polyvinyl chloride layer 31 contacts with thermoplastic urethane layers 32 has been uniformly distributed circumferentially several Block 7；Projection 7 quantity on above-mentioned polyvinyl chloride layer 31 surface is 8
Above-mentioned polyvinyl chloride layer 31 is composed of the following components: melt index is the Low Density Polyethylene 55 parts of 1 ~ 8g/10min, melts Melt high density polyethylene (HDPE) 45 parts that index is 1 ~ 8g/10min, diethyl phthalate 26 parts, trioctyl trimellitate (TOTM) 25 parts, Calcium carbonate 20 parts, calcium ricinoleate 5 parts, double (3,5-tri-grades of butyl-4-hydroxy phenyls) thioether 4.8 parts, stearic acid 1.2 parts, poly-second 0.9 part of alkene wax；
Above-mentioned thermoplastic urethane layers 32 is composed of the following components: 100 parts of thermoplastic poly ammonia phenol elastomer, melt index be 1 ~ The Low Density Polyethylene of 8g/10min 11 parts, ethylene ethyl acrylate 15 parts, ethylene-butylene copolymer 6 parts, silicon dioxide 4.2 Part, butyronitrile complex 18 parts, chlorinated polyethylene 5 parts, zinc 6 parts, 12 parts of magnesium hydroxide, compound molybdenum smoke suppressant 2 parts, montmorillonite 4.5 parts, calcium-zinc composite stabilizing agent 1 part, double (3,5-tri-grades of butyl-4-hydroxy phenyls) thioether 3 parts, zinc stearate 4 parts.
In embodiment high-flexibility telecommunication flexible cable, the first restrictive coating performance is shown in Table 1:
Table 1
Above-described embodiment, only for technology design and the feature of the explanation present invention, its object is to allow person skilled in the art's energy Solution present disclosure much of that is also implemented according to this, can not limit the scope of the invention with this.All according to present invention spirit The equivalence that essence is made changes or modifies, and all should contain within protection scope of the present invention.

Claims (3)

1. a high-flexibility telecommunication flexible cable, it is characterised in that: include steel wire (1) and 4 be coated with polyethylene layer (21) heart yearn (2), this heart yearn (2) is by being positioned at the polyethylene strip (10) at center and stranded in the 6 of polyethylene strip (10) outer surface Root copper conductor (11) forms；
First restrictive coating (3) is coated on 2 described copper conductor (2) outer surfaces, and the second restrictive coating (4) is coated on steel wire (1) appearance Face；One bar shaped connecting portion (5) is positioned between the first restrictive coating (3) and the second restrictive coating (4), this bar shaped connecting portion (5) left and right two Side is equipped with v-depression (6)；Described first restrictive coating (3) is by being positioned at the polyvinyl chloride layer (31) of inner side and being positioned at the heat in outside Plastic polyurethane layer (32) forms, the first polyethylene rope (81), the second polyethylene rope (82) be positioned at bar shaped connecting portion (5) internal and Lay respectively at v-depression (6) both sides；Circumferentially distributed in described polyethylene layer (21) have several pores (9)；
Described polyvinyl chloride layer (31) is composed of the following components: melt index be 1 ~ 8g/10min Low Density Polyethylene 55 parts, Melt index is the high density polyethylene (HDPE) 45 parts of 1 ~ 8g/10min, diethyl phthalate 26 parts, trioctyl trimellitate (TOTM) 25 Part, calcium carbonate 20 parts, calcium ricinoleate 5 parts, double (3,5-tri-grades of butyl-4-hydroxy phenyls) thioether 4.8 parts, stearic acid 1.2 parts, poly- Ethylene waxes 0.9 part；
Described thermoplastic urethane layers (32) is composed of the following components: 100 parts of thermoplastic poly ammonia phenol elastomer, melt index be 1 ~ The Low Density Polyethylene of 8g/10min 11 parts, ethylene ethyl acrylate 15 parts, ethylene-butylene copolymer 6 parts, silicon dioxide 4.2 Part, butyronitrile complex 18 parts, chlorinated polyethylene 5 parts, zinc 6 parts, 12 parts of magnesium hydroxide, compound molybdenum smoke suppressant 2 parts, montmorillonite 4.5 parts, calcium-zinc composite stabilizing agent 1 part, double (3,5-tri-grades of butyl-4-hydroxy phenyls) thioether 3 parts, zinc stearate 4 parts.
High-flexibility telecommunication flexible cable the most according to claim 1, it is characterised in that: described polyvinyl chloride layer (31) surface contacted with thermoplastic urethane layers (32) has been uniformly distributed circumferentially several projections (7).
High-flexibility telecommunication flexible cable the most according to claim 1, it is characterised in that: described polyvinyl chloride layer (31) projection (7) quantity on surface is 8.
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CN201610541205.XA CN106057346B (en) 2014-10-28 2014-10-28 High-flexibility telecommunication flexible cable
CN201410588918.2A CN104319005B (en) 2014-10-28 2014-10-28 Remote multi-core flexible communication cable

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CN106057346B CN106057346B (en) 2017-12-01

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CN106409392A (en) 2017-02-15
CN104319005B (en) 2017-01-11
CN106057346B (en) 2017-12-01
CN106409392B (en) 2018-01-09
CN106098185A (en) 2016-11-09

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