CN115631883A - Soft high-tearing-resistance low-temperature-resistance wear-resistance power cable for field military - Google Patents

Soft high-tearing-resistance low-temperature-resistance wear-resistance power cable for field military Download PDF

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Publication number
CN115631883A
CN115631883A CN202211406322.7A CN202211406322A CN115631883A CN 115631883 A CN115631883 A CN 115631883A CN 202211406322 A CN202211406322 A CN 202211406322A CN 115631883 A CN115631883 A CN 115631883A
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resistance
temperature
wear
layer
resistant
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程刚
王士全
吴本喜
王畏
汪旺翠
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Anhui Yuanzheng Cable Technology Co ltd
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Anhui Yuanzheng Cable Technology Co ltd
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Priority to CN202211406322.7A priority Critical patent/CN115631883A/en
Priority to PCT/CN2022/131868 priority patent/WO2024098442A1/en
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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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08L27/18—Homopolymers or copolymers or tetrafluoroethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • 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
    • 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
    • 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
    • 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
    • H01B7/184—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
    • H01B7/18—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
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1895—Internal space filling-up means
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    • 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
    • H01B7/22—Metal wires or tapes, e.g. made of steel
    • H01B7/228—Metal braid
    • 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
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    • 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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    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
    • H01B9/024—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients composed of braided metal wire
    • 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
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Abstract

The invention discloses a soft high-tearing-resistance low-temperature-resistance wear-resistance power cable for field military use, and relates to the technical field of special military cables. The anti-tearing and temperature-resistant elastomer layer is used for solving the technical problems that the wear resistance, temperature resistance and tear resistance of a field military power supply cable still need to be improved so as to improve the wear rate in a long-term low-temperature environment and winding operation, and the anti-tearing and temperature-resistant elastomer layer is used for wrapping and protecting the periphery of a tinned copper conductor so as to improve the temperature resistance, bending resistance and tear resistance of the conductor; the gaps between the non-woven fabric layer and the cable core are filled by the flame-retardant polypropylene filling ropes, so that the flame retardant property and the strength of the power cable are improved; the wear-resistant polyurethane outer sheath layer has excellent tensile strength while improving wear resistance and temperature resistance, and the power cable is suitable for being installed in a field military control device in a narrow space, is low in wear rate under a long-term low-temperature environment and winding dragging operation, and is not easy to deform and tear.

Description

Soft high-tearing-resistance low-temperature-resistance wear-resistance power cable for field military
Technical Field
The invention belongs to the technical field of special military cables, and particularly relates to a field military soft high-tearing-resistance low-temperature-resistance wear-resistance power cable.
Background
With the rapid development of the military industry and electronics industry in China, higher performance requirements are put forward on military special wires and cables. For military use, the power cable in the market at present can not meet the requirements of softness, high and low temperature resistance, hydrolysis resistance, wear resistance, salt mist resistance and mould resistance at the same time. The existing special power cable is wrapped with an insulating layer to form wire cores outside a conductor respectively, two wire cores after the insulating layer are wrapped are twisted into a bundle, a flame-retardant oxygen-isolating wrapping belt layer is arranged outside the bundled wire, a tinned copper wire shielding layer is arranged outside the wrapping belt layer to form a wire core group, the wrapping belt layer is wrapped after the three wire cores are combined, an inner sheath formed by high-temperature-resistant polyurethane extrusion is arranged outside the wrapping belt layer, an armor layer woven by tinned copper wires is arranged outside the inner sheath, a high-temperature-resistant polyurethane outer sheath layer is wrapped outside the armor layer, and the cable is soft, high and low temperature resistant, wear resistant, salt spray resistant and mold resistant.
However, research shows that the wear resistance, temperature resistance and tear resistance of the power cable applied to the field military control device still need to be improved so as to improve the wear rate under long-term low-temperature environment and winding operation.
Disclosure of Invention
The invention aims to provide a soft high-tearing-resistance low-temperature-resistance wear-resistance power cable for field military use, which is used for solving the technical problem that the wear resistance, temperature resistance and tearing resistance of the field military power cable in the prior art still need to be improved so as to improve the wear rate under long-term low-temperature environment and winding operation.
The purpose of the invention can be realized by the following technical scheme:
the invention provides a soft high-tearing-resistance low-temperature-resistance wear-resistance power supply cable for field military, which comprises a wear-resistance polyurethane outer sheath layer, a non-woven fabric layer and a plurality of cable cores, wherein the wear-resistance polyurethane outer sheath layer, the non-woven fabric layer and the plurality of cable cores are sequentially arranged from outside to inside, each cable core comprises a conductor formed by twisting a plurality of tinned copper wires and a tearing-resistance temperature-resistance elastic body layer formed by wrapping the outside of the conductor, the non-woven fabric layer is formed on the outside of the plurality of cable cores in a wrapping mode, the wear-resistance polyurethane outer sheath layer is formed on the outside of the non-woven fabric layer in an extruding mode, and a plurality of flame-retardant polypropylene filling ropes are filled between the inside of the non-woven fabric layer and the outside of the cable cores.
As a further preferable scheme of the invention, the conductor is formed by regularly twisting 4-20 strands of tin-plated thin soft copper wires, and the bending radius of the conductor is more than or equal to 3 times of the diameter of the power cable; the material of the non-woven fabric layer is prepared from polyester staple fibers and an adhesive, the thickness is 0.1 +/-0.03 mm, the tensile strength is 50N/cm, and the tensile rate is 12%; the tensile strength of the flame-retardant polypropylene filling rope is 65N/25mm, and the oxygen index is 34%.
As a further preferable scheme of the invention, a plurality of flame-retardant glass fiber ropes are arranged at the central position of an area formed by enclosing a plurality of cable cores, a wear-resistant polyurethane inner sheath layer is formed by extruding and wrapping the outside of the tear-resistant and temperature-resistant elastomer layer, a plurality of polyurethane reinforcing ribs staggered with the flame-retardant polypropylene filling ropes are arranged between the inside of the non-woven fabric layer and the outside of the cable cores in an annular array manner, and a tensile and compressive armor layer is formed by weaving between the non-woven fabric layer and the wear-resistant polyurethane outer sheath layer.
As a further preferable scheme of the invention, the diameter of the flame-retardant glass fiber rope is 1mm, the flame-retardant glass fiber rope can resist the high temperature of 550 ℃, the tensile strength is 120MPa, and the oxygen index is 40%; the tensile and compression resistant armor layer is formed by weaving double-layer tinned copper wires with the thickness of 0.15mm, and the weaving density is more than or equal to 95%.
As a further preferable scheme of the invention, the preparation method of the tearing-resistant temperature-resistant elastomer layer material comprises the following steps:
step one, mixing 3-8 parts of polytetrafluoroethylene superfine powder, 8-15 parts of glass fiber reinforced PBT and 3-6 parts of nano titanium dioxide powder according to parts by weight, adding 1.2-2 parts of gamma-glycidyl ether oxypropyl trimethoxysilane, and uniformly stirring at the rotating speed of 400-600 rpm to obtain mixed powder for later use;
adding 50-65 parts by weight of methyl vinyl silicone rubber and 25-43 parts by weight of temperature-resistant organic silicon resin into a vacuum kneader, kneading for 5-10 min, adding 32-45 parts by weight of fumed silica, heating to 90-100 ℃, and carrying out rubber mixing for 1 hour under the vacuum pressure of-0.09 to-0.08 MPa to obtain a rubber mixing mixture;
and step three, adding the mixed powder into the rubber mixture, refining for 20-30 min under the vacuum pressure of-0.09 to-0.08 MPa to obtain rubber compound, adding 2-4 parts by weight of vulcanizing agent tetramethyl thiuram dithio into the rubber compound, and uniformly scouring to obtain the tearing-resistant and temperature-resistant elastomer layer material.
In a further preferred embodiment of the present invention, the methyl vinyl silicone rubber has a molecular weight of 60 to 70 ten thousand and a vinyl content of 0.02 to 0.1%; the temperature-resistant organic silicon resin is aqueous dispersion of methyl phenyl silicone resin, the solid content of the temperature-resistant organic silicon resin is 52% at 105 ℃, and the viscosity of the temperature-resistant organic silicon resin is 800cp at 25 ℃.
As a further preferable scheme of the invention, the material of the wear-resistant polyurethane inner sheath layer is the same as that of the wear-resistant polyurethane outer sheath layer, and the preparation method of the material is as follows: uniformly mixing 1-3 parts of titanium dioxide, 2-6 parts of carbon fiber powder, 0.6-1.5 parts of gamma-aminopropyltriethoxysilane, 2-5 parts of silicone oil and 0.5-2 parts of expanded graphite according to parts by weight, crushing, and sieving with a 10-mesh sieve to obtain a mixture a; heating and melting 80-96 parts of thermoplastic polyurethane, adding the mixture a, uniformly stirring at the rotating speed of 200-300 rpm to obtain a mixed melt, injecting the mixed melt into a mold, cooling and molding, crushing, and sieving to obtain the wear-resistant polyurethane sheath material; wherein the hardness of the thermoplastic polyurethane is 70A-60D, and the light transmittance is 85-90%.
The invention has the following beneficial effects:
1. according to the power cable, the anti-tearing heat-resistant elastomer layer wraps and protects the periphery of the tinned copper conductor, so that the heat resistance, the bending resistance and the tearing resistance of the conductor are improved; the gaps between the non-woven fabric layer and the cable core are filled by the flame-retardant polypropylene filling ropes, so that the flame retardant property and the strength of the power cable are improved; the wear-resistant polyurethane outer sheath layer is protected at the outermost part of the cable core, the wear resistance and the temperature resistance are improved, meanwhile, the tensile strength is good, the power cable is suitable for being installed in a field military control device in a narrow space, the wear rate under long-term low-temperature environment and winding dragging operation is low, and the power cable is not prone to deformation and tearing.
2. According to the invention, the flame retardant property and tensile strength of the power cable are improved by the plurality of flame retardant glass fiber ropes at the central part, the flexibility and bending resistance of the power cable are improved by the plurality of polyurethane reinforcing ribs, the tensile resistance and compression resistance of the power cable are improved by the tensile and compression resistance armor layer, and the electromagnetic shielding resistance of the inner conductor is improved.
3. According to the tearing-resistant and temperature-resistant elastomer layer material, the methyl vinyl silicone rubber has high molecular weight, insulativity and thermal stability, and the crosslinking density can be increased after the temperature-resistant organic silicon resin is added, so that the mechanical strength and the high and low temperature resistance of the methyl vinyl silicone rubber are obviously improved; the anti-tearing heat-resistant elastomer is prepared from the elastomer layer material, and after the anti-tearing heat-resistant elastomer is wound and formed on the periphery of a conductor, good high and low temperature resistance and electrical insulation performance are exerted.
4. According to the wear-resistant polyurethane sheath material, thermoplastic polyurethane is used as a main component, two reinforcing wear-resistant fillers of titanium dioxide and carbon fiber powder are added, and a silane coupling agent gamma-aminopropyltriethoxysilane, lubricant silicone oil and a flame retardant expanded graphite are matched, so that the titanium dioxide and the expanded graphite can be coupled with the thermoplastic polyurethane through the silane coupling agent in a heating and melting process, the wear-resistant polyurethane sheath material of a macromolecular polymer is obtained, the wear-resistant polyurethane sheath material has good wear resistance and flame retardance, and the wear resistance and the flame retardance of a wear-resistant polyurethane outer sheath layer and a wear-resistant polyurethane inner sheath layer are further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a cross-sectional view of a power cable with high flexibility, high tear resistance, low temperature resistance and abrasion resistance for field military use in example 1 of the present invention;
fig. 2 is a cross-sectional view of a field military soft high-tear-resistance low-temperature-resistance abrasion-resistance power cable in embodiment 2 of the invention.
Reference numerals: 10. a wear-resistant polyurethane outer jacket layer; 11. a flame retardant fiberglass rope; 12. reinforcing ribs; 20. a non-woven fabric layer; 30. a cable core; 31. a conductor; 32. a tear resistant temperature resistant elastomer layer; 33. a wear-resistant polyurethane inner jacket layer; 40. a flame retardant polypropylene filled rope; 50. tensile resistance to compression armor.
Detailed Description
The technical solutions of the present invention will be described below clearly and completely in conjunction with the embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1, the soft high-tearing-resistance low-temperature-resistance abrasion-resistance power cable for field military use of the embodiment includes an abrasion-resistance polyurethane outer sheath layer 10, a non-woven fabric layer 20 and a plurality of cable cores 30 which are sequentially arranged from outside to inside, wherein each cable core 30 includes a conductor 31 formed by twisting a plurality of tinned copper wires and an anti-tearing temperature-resistance elastomer layer 32 formed by wrapping the outside of the conductor 31, the non-woven fabric layer 20 is formed on the outside of the plurality of cable cores 30 in a wrapping manner, the abrasion-resistance polyurethane outer sheath layer 10 is formed on the outside of the non-woven fabric layer 20 in a squeezing manner, and a plurality of flame-retardant polypropylene filling ropes 40 are filled between the inside of the non-woven fabric layer 20 and the outside of the cable cores 30.
Specifically, the conductor 31 is a sixth type conductor and is formed by regularly twisting 4-20 strands of tin-plated thin soft copper wires, and the bending radius of the conductor is more than or equal to 3 times of the diameter of the power cable; the non-woven fabric layer 20 is made of polyester staple fibers and an adhesive, the thickness is 0.1 +/-0.03 mm, the tensile strength is 50N/cm, and the tensile rate is 12%; the tensile strength of the flame-retardant polypropylene filling rope 40 is 65N/25mm, and the oxygen index is 34%; the number of cores 30 is preferably three and is distributed in an annular array with respect to the centre of the power cable.
In the field military soft high-tearing-resistance low-temperature-resistance wear-resistance power supply cable of the embodiment, the plurality of cable cores 30 are composed of the tinned copper conductors and the tearing-resistance temperature-resistance elastic body layers 32, the tinned copper conductors are soft and bending-resistance, and the tearing-resistance temperature-resistance elastic body layers 32 wrap and protect the peripheries of the tinned copper conductors, so that the temperature resistance, the bending resistance and the tearing resistance of the conductors 31 are improved; the gaps between the non-woven fabric layer 20 and the cable core 30 are filled by the flame-retardant polypropylene filling ropes 40, so that the flame retardant property and the strength of the power cable are improved; the wear-resistant polyurethane outer sheath layer 10 is protected at the outermost part of the cable core 30, the wear resistance and the temperature resistance are improved, meanwhile, the tensile strength is good, the power cable is suitable for being installed in a field military control device in a narrow space, the wear rate under long-term low-temperature environment and winding dragging operation is low, and the power cable is not prone to deformation and tearing.
Example 2
Referring to fig. 2, the soft high-tearing-resistance low-temperature-resistance wear-resistance power cable for field military use of the present embodiment is different from embodiment 1 in that a plurality of flame-retardant glass fiber ropes 11 are disposed at the central position of an area surrounded by a plurality of cable cores 30, a wear-resistance polyurethane inner sheath layer 33 is formed by extruding the outer portion of the tearing-resistance temperature-resistance elastomer layer 32, a plurality of polyurethane reinforcing ribs 12 interlaced with the flame-retardant polypropylene filling rope 40 are disposed in an annular array between the inside of the non-woven fabric layer 20 and the outside of the cable cores 30, and a tensile and compressive armor layer 50 is formed by weaving between the non-woven fabric layer 20 and the wear-resistance polyurethane outer sheath layer 10.
Specifically, the diameter of the flame-retardant glass fiber rope 11 is 1mm, the flame-retardant glass fiber rope can resist high temperature of 550 ℃, the tensile strength is 120MPa, and the oxygen index is 40%; the tensile and compressive armor layer 50 is formed by weaving double-layer tinned copper wires with the thickness of 0.15mm, the weaving density is more than or equal to 95%, and the material of the wear-resistant polyurethane inner sheath layer 33 is the same as that of the wear-resistant polyurethane outer sheath layer 10.
The field military soft high-tear-resistance low-temperature-resistant wear-resistant power cable is improved on the basis of the embodiment 1, and the flame retardant performance and the tensile strength of the power cable are improved at the central part by arranging the flame retardant glass fiber ropes 11 at the centers of the cable cores 30; the plurality of polyurethane reinforcing ribs 12 are arranged between the non-woven fabric layer 20 and the cable core 30, so that the flexibility and the bending resistance of the power cable are improved inside the cable; by weaving the tensile and compressive armor layer 50 between the non-woven fabric layer 20 and the wear-resistant polyurethane outer sheath layer 10, the tensile property and compressive property of the power cable are improved, and the electromagnetic shielding resistance of the inner conductor 31 is improved.
Example 3
Referring to fig. 1-2, this example provides a tear-resistant and temperature-resistant elastomer layer material suitable for processing to obtain the tear-resistant and temperature-resistant elastomer layer 32 of examples 1-2, and the preparation method thereof includes the following steps:
step one, mixing 65g of polytetrafluoroethylene superfine powder, 125g of glass fiber reinforced PBT and 46g of nano titanium dioxide powder, adding 16g of gamma-glycidyl ether oxypropyltrimethoxysilane, and uniformly stirring at the rotating speed of 550rpm to obtain mixed powder for later use; the grade of the glass fiber reinforced PBT is 1184GA-15;
adding 57g of methyl vinyl silicone rubber and 32g of temperature-resistant organic silicon resin into a vacuum kneader, kneading for 7min, adding 40g of fumed silica, heating to 96 ℃, and carrying out rubber mixing for 1 hour under the vacuum pressure of-0.085 MPa to obtain a rubber mixing mixture; wherein, the molecular weight of the methyl vinyl silicone rubber is 60-70 ten thousand, and the vinyl content is 0.02-0.1%; the temperature-resistant organic silicon resin is an aqueous dispersion of methyl phenyl silicone resin, the solid content of the temperature-resistant organic silicon resin is 52 percent at 105 ℃, and the viscosity of the temperature-resistant organic silicon resin is 800cp at 25 ℃;
and step three, adding the mixed powder into the rubber mixture, refining for 26min under the vacuum pressure of-0.085 MPa to obtain rubber mixture, adding 28g of vulcanizing agent tetramethyl thiuram dithionate into the rubber mixture, and uniformly milling to obtain the tear-resistant and temperature-resistant elastomer layer material.
Example 4
Referring to fig. 1-2, the present embodiment provides a wear-resistant polyurethane sheath material, which is suitable for processing to obtain the wear-resistant polyurethane outer sheath layer 10 and the wear-resistant polyurethane inner sheath layer 33 in embodiments 1 and 2, and the preparation method thereof is as follows: uniformly mixing 18g of titanium dioxide, 42g of carbon fiber powder, 10g of gamma-aminopropyltriethoxysilane, 35g of silicone oil and 12g of expanded graphite, crushing, and sieving by a 10-mesh sieve to obtain a mixture a; heating 880g of thermoplastic polyurethane for melting, adding the mixture a, uniformly stirring at the rotating speed of 260rpm to obtain a mixed melt, injecting the mixed melt into a mold, cooling, molding, crushing and sieving to obtain the wear-resistant polyurethane sheath material; wherein the hardness of the thermoplastic polyurethane is 70A-60D, and the light transmittance is 85-90%.
Example 5
Referring to fig. 1-2, this example provides a tear-resistant and temperature-resistant elastomer layer material suitable for processing to obtain the tear-resistant and temperature-resistant elastomer layer 32 of examples 1-2, and the preparation method thereof includes the following steps:
step one, mixing 76g of polytetrafluoroethylene superfine micropowder, 86g of glass fiber reinforced PBT and 35g of nano titanium dioxide powder, adding 19g of gamma-glycidyl ether oxypropyltrimethoxysilane, and uniformly stirring at the rotating speed of 580rpm to obtain mixed powder for later use; the grade of the glass fiber reinforced PBT is 1184GA-15;
adding 64g of methyl vinyl silicone rubber and 42g of temperature-resistant organic silicon resin into a vacuum kneader, kneading for 10min, adding 43g of fumed silica, heating to 100 ℃, and carrying out rubber mixing for 1 hour under the vacuum pressure of-0.087 MPa to obtain a rubber mixing mixture; wherein, the molecular weight of the methyl vinyl silicone rubber is 60-70 ten thousand, and the vinyl content is 0.02-0.1%; the temperature-resistant organic silicon resin is an aqueous dispersion of methyl phenyl silicone resin, the solid content of the temperature-resistant organic silicon resin is 52 percent at 105 ℃, and the viscosity of the temperature-resistant organic silicon resin is 800cp at 25 ℃;
and step three, adding the mixed powder into the rubber mixture, refining for 22min under the vacuum pressure of-0.082 MPa to obtain rubber mixture, adding 35g of vulcanizing agent tetramethyl thiuram dithionate into the rubber mixture, and uniformly milling to obtain the tearing-resistant and temperature-resistant elastomer layer material.
Example 6
Referring to fig. 1-2, the present embodiment provides a wear-resistant polyurethane sheath material, which is suitable for processing to obtain the wear-resistant polyurethane outer sheath layer 10 and the wear-resistant polyurethane inner sheath layer 33 in embodiments 1 and 2, and the preparation method thereof is as follows: uniformly mixing 26g of titanium dioxide, 55g of carbon fiber powder, 13g of gamma-aminopropyltriethoxysilane, 46g of silicone oil and 18g of expanded graphite, crushing, and sieving by a 10-mesh sieve to obtain a mixture a; heating and melting 950g of thermoplastic polyurethane, adding the mixture a, uniformly stirring at the rotating speed of 230rpm to obtain a mixed melt, injecting the mixed melt into a mold, cooling and molding, crushing, and sieving to obtain the wear-resistant polyurethane sheath material; wherein the hardness of the thermoplastic polyurethane is 70A-60D, and the light transmittance is 85-90%.
Performance testing
The soft high-tearing-resistance low-temperature-resistance wear-resistance power cable for field force in the embodiment 1 adopts the tearing-resistance temperature-resistance elastomer layer material in the embodiment 3 and the wear-resistance polyurethane sheath material in the embodiment 4; the tear-resistant temperature-resistant elastomer layer material of the example 5 and the wear-resistant polyurethane sheath material of the example 6 are adopted for the soft high-tear-resistant low-temperature-resistant wear-resistant power cable for field military prepared in the example 2; tests show that the tensile strength is greater than 40MPa, the tear strength is greater than 25N/mm, the cable is wound and dragged at the temperature of minus 30 ℃ or 80 ℃, and the wear rate within 30 days is less than 1 percent.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims (7)

1. The utility model provides a soft high resistance of open-air army is torn low temperature resistant stand wear and tear power cable, a serial communication port, include by outer wear-resisting polyurethane oversheath layer (10) that sets gradually to interior, non-woven fabrics layer (20) and many cable cores (30), cable core (30) include conductor (31) and conductor (31) outside package anti tearing temperature resistant elastomer layer (32) that form by the transposition of stranded tinned wire, non-woven fabrics layer (20) are around the outside of package shaping in many cable cores (30), wear-resisting polyurethane oversheath layer (10) are crowded package shaping in the outside of non-woven fabrics layer (20), it has many fire-retardant polypropylene filling rope (40) to fill between non-woven fabrics layer (20) inside and cable core (30) outside.
2. The soft high-tear-resistance low-temperature-resistant abrasion-resistant power cable for field military use according to claim 1, wherein the conductor (31) is formed by regularly twisting 4-20 strands of tin-plated thin soft copper wires, and the bending radius of the power cable is more than or equal to 3 times of the diameter of the power cable; the non-woven fabric layer (20) is made of polyester staple fibers and an adhesive, the thickness is 0.1 +/-0.03 mm, the tensile strength is 50N/cm, and the tensile rate is 12%; the tensile strength of the flame-retardant polypropylene filling rope (40) is 65N/25mm, and the oxygen index is 34%.
3. The soft high-tearing-resistance low-temperature-resistance wear-resistance power supply cable for field military use according to claim 1, wherein a plurality of flame-retardant glass fiber ropes (11) are arranged at the center of an area enclosed by the cable core (30), a wear-resistance polyurethane inner sheath layer (33) is formed by extruding and wrapping the outer part of the tearing-resistance heat-resistance elastomer layer (32), a plurality of polyurethane reinforcing ribs (12) staggered with the flame-retardant polypropylene filling ropes (40) are arranged between the inside of the non-woven fabric layer (20) and the outer part of the cable core (30) in an annular array mode, and a tensile and compression-resistance armor layer (50) is formed between the non-woven fabric layer (20) and the wear-resistance polyurethane outer sheath layer (10) in a weaving mode.
4. The power cable as claimed in claim 3, wherein the diameter of the flame-retardant glass fiber rope (11) is 1mm, the cable has a high temperature resistance of 550 ℃, a tensile strength of 120MPa and an oxygen index of 40%; the tensile and compressive armor layer (50) is formed by weaving double-layer 0.15mm tinned copper wires, and the weaving density is more than or equal to 95%.
5. The soft high-tear-resistance low-temperature-resistance wear-resistance power cable for field military use according to claim 1, wherein the preparation method of the tear-resistance temperature-resistance elastomer layer material comprises the following steps:
step one, mixing 3-8 parts of polytetrafluoroethylene superfine powder, 8-15 parts of glass fiber reinforced PBT and 3-6 parts of nano titanium dioxide powder according to parts by weight, adding 1.2-2 parts of gamma-glycidyl ether oxypropyl trimethoxysilane, and uniformly stirring at the rotating speed of 400-600 rpm to obtain mixed powder for later use;
adding 50-65 parts by weight of methyl vinyl silicone rubber and 25-43 parts by weight of temperature-resistant organic silicon resin into a vacuum kneader, kneading for 5-10 min, adding 32-45 parts by weight of fumed silica, heating to 90-100 ℃, and carrying out rubber mixing for 1 hour under the vacuum pressure of-0.09 to-0.08 MPa to obtain a rubber mixing mixture;
and step three, adding the mixed powder into the rubber mixture, refining for 20-30 min under the vacuum pressure of-0.09 MPa to-0.08 MPa to obtain rubber compound, adding 2-4 parts by weight of vulcanizing agent tetramethyl thiuram dithio into the rubber compound, and uniformly milling to obtain the anti-tear temperature-resistant elastomer layer material.
6. The soft high-tear-resistance low-temperature-resistance wear-resistance power cable for wild military use according to claim 5, wherein the molecular weight of the methyl vinyl silicone rubber is 60-70 ten thousand, and the vinyl content is 0.02-0.1%; the temperature-resistant organic silicon resin is aqueous dispersion of methyl phenyl silicone resin, the solid content of the temperature-resistant organic silicon resin is 52% at 105 ℃, and the viscosity of the temperature-resistant organic silicon resin is 800cp at 25 ℃.
7. The soft high-tear-resistance low-temperature-resistance abrasion-resistance power supply cable for field military use according to claim 3, wherein the material of the abrasion-resistance polyurethane inner sheath layer (33) is the same as that of the abrasion-resistance polyurethane outer sheath layer (10), and the preparation method of the material is as follows: uniformly mixing 1-3 parts of titanium dioxide, 2-6 parts of carbon fiber powder, 0.6-1.5 parts of gamma-aminopropyltriethoxysilane, 2-5 parts of silicone oil and 0.5-2 parts of expanded graphite according to parts by weight, crushing, and sieving with a 10-mesh sieve to obtain a mixture a; heating and melting 80-96 parts of thermoplastic polyurethane, adding the mixture a, uniformly stirring at the rotating speed of 200-300 rpm to obtain a mixed melt, injecting the mixed melt into a mold, cooling and molding, crushing, and sieving to obtain the wear-resistant polyurethane sheath material; wherein the hardness of the thermoplastic polyurethane is 70A-60D, and the light transmittance is 85-90%.
CN202211406322.7A 2022-11-10 2022-11-10 Soft high-tearing-resistance low-temperature-resistance wear-resistance power cable for field military Pending CN115631883A (en)

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Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
CN201956109U (en) * 2010-12-29 2011-08-31 江苏宏图高科技股份有限公司 Lightweight drag photoelectric composite cable
CN202454321U (en) * 2011-04-22 2012-09-26 北京上酉电缆有限公司 Cable and equipment for manufacturing cable
CN203787201U (en) * 2014-04-29 2014-08-20 安徽新亚特电缆集团有限公司 Outdoor cold-resistant mobile wear-resistant tensile shielding power cable
CN204666883U (en) * 2015-05-11 2015-09-23 西安西古光通信有限公司 A kind of Signal transmissions optical cable for track traffic communication system
CN205158934U (en) * 2015-12-07 2016-04-13 福建世纪电缆有限公司 Flexible cable for tow chain
CN108473760B (en) * 2016-03-14 2021-02-26 株式会社艾迪科 Flame-retardant thermoplastic polyurethane resin composition
US11600403B2 (en) * 2017-10-31 2023-03-07 Sumitomo Electric Industries, Ltd. Cable
CN112002462A (en) * 2020-07-28 2020-11-27 安徽华能电缆集团有限公司 High-low temperature-resistant anti-interference comprehensive flexible cable for unmanned aerial vehicle
CN112940512A (en) * 2021-02-05 2021-06-11 东莞市朗晟材料科技有限公司 Temperature-resistant insulating silicone rubber, preparation method thereof and temperature-resistant insulating adhesive tape

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