CN114822961A - Tensile high-flame-retardant cable - Google Patents
Tensile high-flame-retardant cable Download PDFInfo
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- CN114822961A CN114822961A CN202210590321.6A CN202210590321A CN114822961A CN 114822961 A CN114822961 A CN 114822961A CN 202210590321 A CN202210590321 A CN 202210590321A CN 114822961 A CN114822961 A CN 114822961A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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- 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
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
- C08L23/28—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with halogens or compounds containing halogen
- C08L23/286—Chlorinated polyethylene
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/39—Aldehyde resins; Ketone resins; Polyacetals
- D06M15/41—Phenol-aldehyde or phenol-ketone resins
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/693—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural or synthetic rubber, or derivatives thereof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/30—Drying; Impregnating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
- H01B3/04—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances mica
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/48—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials
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- 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
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- 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
- H01B7/22—Metal wires or tapes, e.g. made of steel
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- 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
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- 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
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/34—Polyamides
- D06M2101/36—Aromatic polyamides
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- 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
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Abstract
The invention relates to the technical field of wires and cables, in particular to a tensile high-flame-retardant cable which comprises an outer sheath, a steel wire armor layer, a crosslinked polyethylene insulating layer, a flame-retardant sheath layer, a tensile core and a cable core, wherein the outer sheath is made of a plastic material; the tensile core is a gum dipping aramid fiber bundle; the cable core and the gum dipping aramid fiber bundle are fixed by wrapping mica tapes, and the tensile high-flame-retardant cable has excellent tensile flame-retardant performance and can meet the use requirements of common scenes.
Description
Technical Field
The invention relates to the technical field of wires and cables, in particular to a tensile high-flame-retardant cable.
Background
The tensile cable is widely used for electric energy transmission of devices such as a winding drum machine, a conveyer, a lifting electromagnet, an electric flat car, various cranes, a large-scale material taking machine and the like. But because tensile cable need stand effects such as pulling force, torsion, frictional force, consequently traditional tensile cable refers to general rubber sleeve cable's structure, adds galvanized steel wire tensile core and satisfies the tensile requirement, and although galvanized steel wire tensile core can satisfy the tensile requirement of tensile cable to a certain extent, but also increased cable weight simultaneously, has reduced the pliability of cable moreover and has been unfavorable for the transportation.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the technical problem, the invention provides a tensile high-flame-retardant cable.
The adopted technical scheme is as follows:
a tensile high-flame-retardant cable comprises an outer sheath, a steel wire armor layer, a cross-linked polyethylene insulating layer, a flame-retardant sheath layer, a tensile core and a cable core;
the tensile core is a gum dipping aramid fiber bundle;
the cable core and the impregnated aramid fiber bundle are fixed by wrapping mica tapes;
the preparation method of the gum dipping aramid fiber bundle comprises the following steps:
uniformly mixing epoxy linseed oil, phenol and p-toluenesulfonic acid, heating to 110-130 ℃, reacting for 3-5h, cooling to room temperature to obtain a modifier, adding resorcinol and the modifier into water, stirring for 20-40min, dropwise adding a sodium hydroxide solution into the solution, adding a formaldehyde solution after stirring uniformly, fully mixing uniformly, reacting for 6-8h at 23-28 ℃, recovering to room temperature, adding butadiene-pyridine latex and butadiene-styrene latex, shearing at high speed and stirring for 30-50min to obtain a dipping solution, immersing aramid fibers for 5-10s, taking out, drying, and aggregating into bundles.
Further, the mass ratio of the epoxy linseed oil to the phenol to the p-methyl benzene sulfonic acid is 500: 300: 1.
further, the mass ratio of the resorcinol to the modifier is 10-20: 1.
further, the outer sheath comprises the following components in parts by weight:
60-80 parts of chlorinated polyethylene, 30-40 parts of chloroprene rubber, 10-20 parts of styrene-isoprene block copolymer rubber, 5-10 parts of C5 petroleum resin, 0.01-0.05 part of dicumyl peroxide, 1-2 parts of triallyl isocyanurate, 0.5-1 part of antioxidant RD, 5-10 parts of magnesium oxide, 5-10 parts of zinc oxide, 10-20 parts of white carbon black and 30-40 parts of carbon black.
Further, the flame-retardant sheath layer comprises the following components in parts by weight:
60-80 parts of chlorinated polyethylene, 30-40 parts of chloroprene rubber, 10-20 parts of styrene-isoprene block copolymer rubber, 5-10 parts of C5 petroleum resin, 0.01-0.05 part of dicumyl peroxide, 1-2 parts of triallyl isocyanurate, 0.5-1 part of antioxidant RD, 5-10 parts of magnesium oxide, 5-10 parts of zinc oxide, 10-20 parts of white carbon black, 30-40 parts of carbon black and 1-1.5 parts of flame retardant.
Further, the flame retardant comprises tris (2-chloropropyl) phosphate and long-chain alkyl acid salt modified zinc borate.
Further, the mass ratio of the tris (2-chloropropyl) phosphate to the long-chain alkyl acid salt modified zinc borate is 1-5: 1-5.
Further, the preparation method of the long-chain alkyl acid salt modified zinc borate comprises the following steps:
mixing zinc sulfate, borax and boric acid, adding into mortar, adding long-chain alkyl acid salt, grinding for 20-40min, performing microwave irradiation for 10-15min, cooling, washing with water until there is no sulfate ion, and oven drying.
Further, the long-chain alkyl acid salt is a sodium salt of alkyl acid with 10-16 carbon atoms, and at least one hydrogen atom in the sodium salt of alkyl acid with 10-16 carbon atoms is replaced or not replaced by fluorine.
Further, the long-chain alkyl acid salt is sodium perfluorododecanoate.
The invention has the beneficial effects that:
the invention provides a tensile high-flame-retardant cable, which adopts a steel wire armor layer and a tensile core to compound so as to improve the tensile property and the flexibility of the cable, takes a gummed aramid fiber bundle as the tensile core, on one hand, the overall weight of the cable is reduced, on the other hand, the flexibility is ensured, the aramid fiber can improve the bonding force between the aramid fiber and a cable core through gumming treatment, so that the fixation of a mica tape is convenient, and a colloid is coated on the surface of the aramid fiber to play a certain reinforcing role, so that the tensile property and the bending resistance of the cable under a special environment are improved, the composition of an outer sheath and a flame-retardant sheath layer is similar, the mechanical property is similar, the internal stress between the outer sheath and the flame-retardant sheath layer is small under the action of an external force, a composite flame-retardant system consisting of tris (2-chloropropyl) phosphate and long-chain alkyl acid salt modified zinc borate can promote the surface to be quickly dehydrated and carbonized through a thermal degradation product when being heated, the tensile high-flame-retardant cable has excellent tensile flame-retardant performance and can meet the use requirements of common scenes.
Drawings
FIG. 1 is a schematic structural diagram of a tensile high flame-retardant cable according to the present invention;
the reference numbers in the figures represent respectively:
1-outer sheath, 2-steel wire armor layer, 3-crosslinked polyethylene insulating layer, 4-flame-retardant sheath layer, 5-tensile core, 6-cable core and 7-mica tape.
Detailed Description
The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
Example 1:
referring to fig. 1, a tensile high-flame-retardant cable sequentially comprises, from outside to inside, an outer sheath (1), a steel wire armor layer (2), a cross-linked polyethylene insulating layer (3), a flame-retardant sheath layer (4), a plurality of tensile cores (5), and a plurality of cable cores (6);
the cable core (6) and the tensile core (5) are fixed in a wrapping mode through a mica tape, the tensile core (5) is a gumming aramid fiber bundle, and the preparation method is as follows:
adding 50g of epoxy linseed oil, 30g of phenol and 0.1g of p-toluenesulfonic acid into a high-pressure reaction kettle, uniformly mixing, heating to 120 ℃ in a closed manner, reacting for 5 hours, cooling to room temperature to obtain a modifier, adding 500g of resorcinol and 30g of the modifier into 5L of water, stirring for 30 minutes, dropwise adding 20mL of 10 wt% sodium hydroxide solution into the solution, uniformly stirring, adding 405mL of formaldehyde solution, fully mixing uniformly, reacting for 8 hours at 25 ℃, recovering to room temperature, adding 100g of butyl-p-xylene latex and 80g of styrene-butadiene latex, shearing at a high speed and stirring for 50 minutes to obtain a dipping solution, immersing aramid fibers into the dipping solution for 10 seconds, taking out, drying, and aggregating into bundles.
The outer sheath (1) comprises the following components in parts by weight:
70 parts of chlorinated polyethylene, 35 parts of chloroprene rubber, 10 parts of styrene-isoprene block copolymer rubber, 8 parts of C5 petroleum resin, 0.03 part of dicumyl peroxide, 1 part of triallyl isocyanurate, 0.8 part of antioxidant RD, 10 parts of magnesium oxide, 8 parts of zinc oxide, 15 parts of white carbon black and 30 parts of carbon black.
Wherein, the flame-retardant sheath layer (4) comprises the following components in parts by weight:
70 parts of chlorinated polyethylene, 35 parts of chloroprene rubber, 10 parts of styrene-isoprene block copolymer rubber, 8 parts of C5 petroleum resin, 0.03 part of dicumyl peroxide, 1 part of triallyl isocyanurate, 0.8 part of antioxidant RD, 10 parts of magnesium oxide, 8 parts of zinc oxide, 15 parts of white carbon black, 30 parts of carbon black and 1.5 parts of flame retardant, wherein the flame retardant comprises the following components in parts by mass: 1, phosphoric acid tri (2-chloropropyl) ester and perfluor sodium dodecaneate modified zinc borate.
The preparation method of the sodium perfluorododecaneate modified zinc borate comprises the following steps:
evenly mixing 161.45g of zinc sulfate, 205g of borax and 61.83g of boric acid, putting the mixture into a mortar, adding 10g of long-chain alkyl acid salt, grinding for 40min, performing 200W microwave irradiation for 12min, taking out, cooling, washing with water until sulfate ions do not exist, and drying at 80 ℃.
Example 2:
referring to fig. 1, a tensile high-flame-retardant cable sequentially comprises, from outside to inside, an outer sheath (1), a steel wire armor layer (2), a cross-linked polyethylene insulating layer (3), a flame-retardant sheath layer (4), a plurality of tensile cores (5), and a plurality of cable cores (6);
the cable core (6) and the tensile core (5) are fixed in a wrapping mode through a mica tape, the tensile core (5) is a gumming aramid fiber bundle, and the preparation method is as follows:
adding 50g of epoxy linseed oil, 30g of phenol and 0.1g of p-toluenesulfonic acid into a high-pressure reaction kettle, uniformly mixing, heating to 130 ℃ in a closed manner, reacting for 5 hours, cooling to room temperature to obtain a modifier, adding 500g of resorcinol and 30g of the modifier into 5L of water, stirring for 40 minutes, dropwise adding 20mL of 10 wt% sodium hydroxide solution into the solution, uniformly stirring, adding 405mL of formaldehyde solution, fully mixing uniformly, reacting for 8 hours at 28 ℃, recovering to room temperature, adding 100g of butyl-p-xylene latex and 80g of styrene-butadiene latex, shearing at a high speed and stirring for 50 minutes to obtain a dipping solution, immersing aramid fibers into the dipping solution for 10 seconds, taking out, drying, and aggregating into bundles.
Wherein, the outer sheath (1) comprises the following components in parts by weight:
80 parts of chlorinated polyethylene, 40 parts of chloroprene rubber, 20 parts of styrene-isoprene block copolymer rubber, 10 parts of C5 petroleum resin, 0.05 part of dicumyl peroxide, 2 parts of triallyl isocyanurate, 1 part of antioxidant RD, 10 parts of magnesium oxide, 10 parts of zinc oxide, 20 parts of white carbon black and 40 parts of carbon black.
Wherein, the flame-retardant sheath layer (4) comprises the following components in parts by weight:
80 parts of chlorinated polyethylene, 40 parts of chloroprene rubber, 20 parts of styrene-isoprene block copolymer rubber, 10 parts of C5 petroleum resin, 0.05 part of dicumyl peroxide, 2 parts of triallyl isocyanurate, 1 part of an anti-aging agent RD, 10 parts of magnesium oxide, 10 parts of zinc oxide, 20 parts of white carbon black, 40 parts of carbon black and 1.5 parts of a flame retardant, wherein the flame retardant comprises the following components in parts by mass: 1, phosphoric acid tri (2-chloropropyl) ester and perfluor sodium dodecaneate modified zinc borate.
The preparation method of the sodium perfluorododecaneate modified zinc borate comprises the following steps:
evenly mixing 161.45g of zinc sulfate, 205g of borax and 61.83g of boric acid, putting the mixture into a mortar, adding 10g of long-chain alkyl acid salt, grinding for 40min, performing 200W microwave irradiation for 15min, taking out, cooling, washing with water until sulfate ions do not exist, and drying at 80 ℃.
Example 3:
referring to fig. 1, a tensile high-flame-retardant cable sequentially comprises, from outside to inside, an outer sheath (1), a steel wire armor layer (2), a cross-linked polyethylene insulating layer (3), a flame-retardant sheath layer (4), a plurality of tensile cores (5), and a plurality of cable cores (6);
the cable core (6) and the tensile core (5) are fixed in a wrapping mode through a mica tape, the tensile core (5) is a gumming aramid fiber bundle, and the preparation method is as follows:
adding 50g of epoxy linseed oil, 30g of phenol and 0.1g of p-toluenesulfonic acid into a high-pressure reaction kettle, uniformly mixing, heating to 110 ℃ in a sealed manner, reacting for 3 hours, cooling to room temperature to obtain a modifier, adding 500g of resorcinol and 30g of the modifier into 5L of water, stirring for 20 minutes, dropwise adding 20mL of 10 wt% sodium hydroxide solution into the solution, uniformly stirring, adding 405mL of formaldehyde solution, fully mixing uniformly, reacting for 6 hours at 23 ℃, recovering to room temperature, adding 100g of butyl-p-xylene latex and 80g of styrene-butadiene latex, shearing at a high speed and stirring for 30 minutes to obtain a dipping solution, immersing aramid fibers for 5 seconds, taking out, drying, and aggregating into bundles.
Wherein, the outer sheath (1) comprises the following components in parts by weight:
60 parts of chlorinated polyethylene, 30 parts of chloroprene rubber, 10 parts of styrene-isoprene block copolymer rubber, 5 parts of C5 petroleum resin, 0.01 part of dicumyl peroxide, 1 part of triallyl isocyanurate, 0.5 part of antioxidant RD, 5 parts of magnesium oxide, 5 parts of zinc oxide, 10 parts of white carbon black and 30 parts of carbon black.
Wherein, the flame-retardant sheath layer (4) comprises the following components in parts by weight:
60 parts of chlorinated polyethylene, 30 parts of chloroprene rubber, 10 parts of styrene-isoprene block copolymer rubber, 5 parts of C5 petroleum resin, 0.01 part of dicumyl peroxide, 1 part of triallyl isocyanurate, 0.5 part of antioxidant RD, 5 parts of magnesium oxide, 5 parts of zinc oxide, 10 parts of white carbon black, 30 parts of carbon black and 1 part of flame retardant, wherein the flame retardant comprises the following components in parts by mass: 1, phosphoric acid tri (2-chloropropyl) ester and perfluor sodium dodecaneate modified zinc borate.
The preparation method of the sodium perfluorododecanoate modified zinc borate comprises the following steps:
evenly mixing 161.45g of zinc sulfate, 205g of borax and 61.83g of boric acid, putting the mixture into a mortar, adding 10g of long-chain alkyl acid salt, grinding for 20min, performing 200W microwave irradiation for 10min, taking out, cooling, washing with water until sulfate ions do not exist, and drying at 80 ℃.
Example 4:
referring to fig. 1, a tensile high-flame-retardant cable sequentially comprises, from outside to inside, an outer sheath (1), a steel wire armor layer (2), a cross-linked polyethylene insulating layer (3), a flame-retardant sheath layer (4), a plurality of tensile cores (5), and a plurality of cable cores (6);
the cable core (6) and the tensile core (5) are fixed in a wrapping mode through a mica tape, the tensile core (5) is a gumming aramid fiber bundle, and the preparation method is as follows:
adding 50g of epoxy linseed oil, 30g of phenol and 0.1g of p-toluenesulfonic acid into a high-pressure reaction kettle, uniformly mixing, heating to 110 ℃ in a sealed manner, reacting for 5 hours, cooling to room temperature to obtain a modifier, adding 500g of resorcinol and 30g of the modifier into 5L of water, stirring for 20 minutes, dropwise adding 20mL of 10 wt% sodium hydroxide solution into the solution, uniformly stirring, adding 405mL of formaldehyde solution, fully mixing uniformly, reacting for 6 hours at 28 ℃, recovering to room temperature, adding 100g of butyl-p-xylene latex and 80g of styrene-butadiene latex, shearing at a high speed and stirring for 50 minutes to obtain a dipping solution, immersing aramid fibers for 5 seconds, taking out, drying, and aggregating into bundles.
Wherein, the outer sheath (1) comprises the following components in parts by weight:
80 parts of chlorinated polyethylene, 30 parts of chloroprene rubber, 20 parts of styrene-isoprene block copolymer rubber, 5 parts of C5 petroleum resin, 0.05 part of dicumyl peroxide, 1 part of triallyl isocyanurate, 1 part of antioxidant RD, 5 parts of magnesium oxide, 10 parts of zinc oxide, 10 parts of white carbon black and 40 parts of carbon black.
The flame-retardant sheath layer (4) comprises the following components in parts by weight:
60 parts of chlorinated polyethylene, 40 parts of chloroprene rubber, 10 parts of styrene-isoprene block copolymer rubber, 10 parts of C5 petroleum resin, 0.01 part of dicumyl peroxide, 2 parts of triallyl isocyanurate, 0.5 part of antioxidant RD, 10 parts of magnesium oxide, 5 parts of zinc oxide, 20 parts of white carbon black, 30 parts of carbon black and 1.5 parts of flame retardant, wherein the flame retardant comprises the following components in parts by mass: 1, phosphoric acid tri (2-chloropropyl) ester and perfluor sodium dodecaneate modified zinc borate.
The preparation method of the sodium perfluorododecaneate modified zinc borate comprises the following steps:
evenly mixing 161.45g of zinc sulfate, 205g of borax and 61.83g of boric acid, putting the mixture into a mortar, adding 10g of long-chain alkyl acid salt, grinding for 20min, performing 200W microwave irradiation for 15min, taking out, cooling, washing with water until sulfate ions do not exist, and drying at 80 ℃.
Example 5:
referring to fig. 1, a tensile high-flame-retardant cable sequentially comprises, from outside to inside, an outer sheath (1), a steel wire armor layer (2), a cross-linked polyethylene insulating layer (3), a flame-retardant sheath layer (4), a plurality of tensile cores (5), and a plurality of cable cores (6);
the cable core (6) and the tensile core (5) are fixed in a wrapping mode through a mica tape, the tensile core (5) is a gumming aramid fiber bundle, and the preparation method is as follows:
adding 50g of epoxy linseed oil, 30g of phenol and 0.1g of p-toluenesulfonic acid into a high-pressure reaction kettle, uniformly mixing, heating to 130 ℃ in a closed manner, reacting for 3 hours, cooling to room temperature to obtain a modifier, adding 500g of resorcinol and 30g of the modifier into 5L of water, stirring for 40 minutes, dropwise adding 20mL of 10 wt% sodium hydroxide solution into the solution, uniformly stirring, adding 405mL of formaldehyde solution, fully mixing uniformly, reacting for 8 hours at 23 ℃, recovering to room temperature, adding 100g of butyl-p-xylene latex and 80g of styrene-butadiene latex, shearing at a high speed and stirring for 30 minutes to obtain a dipping solution, immersing aramid fibers into the dipping solution for 10 seconds, taking out, drying, and aggregating into bundles.
Wherein, the outer sheath (1) comprises the following components in parts by weight:
60 parts of chlorinated polyethylene, 40 parts of chloroprene rubber, 10 parts of styrene-isoprene block copolymer rubber, 10 parts of C5 petroleum resin, 0.01 part of dicumyl peroxide, 2 parts of triallyl isocyanurate, 0.5 part of antioxidant RD, 10 parts of magnesium oxide, 5 parts of zinc oxide, 20 parts of white carbon black and 30 parts of carbon black.
Wherein, the flame-retardant sheath layer (4) comprises the following components in parts by weight:
80 parts of chlorinated polyethylene, 30 parts of chloroprene rubber, 20 parts of styrene-isoprene block copolymer rubber, 5 parts of C5 petroleum resin, 0.05 part of dicumyl peroxide, 1 part of triallyl isocyanurate, 1 part of an anti-aging agent RD, 5 parts of magnesium oxide, 10 parts of zinc oxide, 10 parts of white carbon black, 40 parts of carbon black and 1 part of a flame retardant, wherein the flame retardant comprises the following components in parts by mass: 1, phosphoric acid tri (2-chloropropyl) ester and perfluor sodium dodecaneate modified zinc borate.
The preparation method of the sodium perfluorododecaneate modified zinc borate comprises the following steps:
evenly mixing 161.45g of zinc sulfate, 205g of borax and 61.83g of boric acid, putting the mixture into a mortar, adding 10g of long-chain alkyl acid salt, grinding for 40min, performing 200W microwave irradiation for 10min, taking out, cooling, washing with water until sulfate ions do not exist, and drying at 80 ℃.
Comparative example 1:
essentially the same as example 1, except that tensile core (5) was not included.
Comparative example 2:
basically the same as example 1 except that aramid fiber bundles were directly used as the tensile core (5).
Comparative example 3:
basically the same as the example 1, except that the tensile core (5) is a dipped aramid fiber bundle, and the preparation method is as follows:
adding 530g of resorcinol into 5L of water, stirring for 30min, dropwise adding 20mL of 10 wt% sodium hydroxide solution into the solution, uniformly stirring, adding 405mL of formaldehyde solution, fully mixing uniformly, reacting at 25 ℃ for 8h, recovering to room temperature, adding 100g of butyl-picolatex and 80g of butylbenzene latex, shearing at high speed and stirring for 50min to obtain a dipping solution, immersing aramid fibers for 10s, taking out, drying, and aggregating into a bundle.
Comparative example 4:
essentially the same as example 1 except that the flame retardant sheath layer (4) does not contain tris (2-chloropropyl) phosphate.
Comparative example 5:
essentially the same as example 1 except that the flame retardant jacket layer (4) did not contain sodium perfluorododecanoate modified zinc borate.
Comparative example 6:
essentially the same as in example 1, except that commercially available zinc borate was used in place of the prepared sodium perfluorododecanoate-modified zinc borate.
And (3) performance testing:
firstly, a torsion test is carried out on the tensile high-flame-retardant cable prepared in the embodiments 1-5 and the comparative examples 1-3 of the invention by referring to GB/T7424.2-2008, a test piece uniformly rotates 360 degrees around the axis of the test piece in one direction to serve as a torsion period, the unidirectional torsion speed is 60r/min, when the torsion frequency reaches a specified value (1000 periods), the cable does not crack, the conductor is not broken, power frequency voltage 1500V is applied, the conductor is not broken, the test is considered to be passed, when the torsion frequency does not reach the specified value, the cable cracks, the conductor is broken, the test is stopped, and the torsion frequency is recorded.
The test results are shown in table 1 below:
table 1:
② the performance test is carried out to the flame-retardant sheath layer (4) prepared by the invention in the examples 1-5 and the comparative examples 4-6, the test result is shown in the following table 2:
table 2:
as can be seen from tables 1 and 2, the tensile high-flame-retardant cable has excellent tensile flame-retardant performance and can meet the use requirements of common scenes.
The above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A tensile high-flame-retardant cable is characterized by comprising an outer sheath, a steel wire armor layer, a cross-linked polyethylene insulating layer, a flame-retardant sheath layer, a tensile core and a cable core;
the tensile core is a gum dipping aramid fiber bundle;
the cable core and the impregnated aramid fiber bundle are fixed by wrapping mica tapes;
the preparation method of the gum dipping aramid fiber bundle comprises the following steps:
uniformly mixing epoxy linseed oil, phenol and p-toluenesulfonic acid, heating to 110-130 ℃, reacting for 3-5h, cooling to room temperature to obtain a modifier, adding resorcinol and the modifier into water, stirring for 20-40min, dropwise adding a sodium hydroxide solution into the solution, adding a formaldehyde solution after stirring uniformly, fully mixing uniformly, reacting for 6-8h at 23-28 ℃, recovering to room temperature, adding butadiene-pyridine latex and butadiene-styrene latex, shearing at high speed and stirring for 30-50min to obtain a dipping solution, immersing aramid fibers for 5-10s, taking out, drying, and aggregating into bundles.
2. The tensile high flame retardant cable of claim 1, wherein the mass ratio of the epoxy linseed oil, the phenol and the p-methyl benzene sulfonic acid is 500: 300: 1.
3. the tensile-resistant and high-flame-retardant cable according to claim 1, wherein the mass ratio of the resorcinol to the modifier is 10-20: 1.
4. the tensile-resistant and high-flame-retardant cable according to claim 1, wherein the outer sheath comprises the following components in parts by weight:
60-80 parts of chlorinated polyethylene, 30-40 parts of chloroprene rubber, 10-20 parts of styrene-isoprene block copolymer rubber, 5-10 parts of C5 petroleum resin, 0.01-0.05 part of dicumyl peroxide, 1-2 parts of triallyl isocyanurate, 0.5-1 part of antioxidant RD, 5-10 parts of magnesium oxide, 5-10 parts of zinc oxide, 10-20 parts of white carbon black and 30-40 parts of carbon black.
5. The tensile-resistant high-flame-retardant cable according to claim 1, wherein the flame-retardant sheath layer comprises the following components in parts by weight:
60-80 parts of chlorinated polyethylene, 30-40 parts of chloroprene rubber, 10-20 parts of styrene-isoprene block copolymer rubber, 5-10 parts of C5 petroleum resin, 0.01-0.05 part of dicumyl peroxide, 1-2 parts of triallyl isocyanurate, 0.5-1 part of antioxidant RD, 5-10 parts of magnesium oxide, 5-10 parts of zinc oxide, 10-20 parts of white carbon black, 30-40 parts of carbon black and 1-1.5 parts of flame retardant.
6. The tensile high flame retardant cable of claim 5, wherein the flame retardant comprises tris (2-chloropropyl) phosphate, long chain alkyl acid salt modified zinc borate.
7. The tensile high-flame-retardant cable according to claim 6, wherein the mass ratio of the tris (2-chloropropyl) phosphate to the long-chain alkyl acid salt modified zinc borate is 1-5: 1-5.
8. The tensile high flame retardant cable of claim 7, wherein the long chain alkyl acid salt modified zinc borate is prepared by the following method:
mixing zinc sulfate, borax and boric acid, placing into mortar, adding long-chain alkyl acid salt, grinding for 20-40min, performing microwave irradiation for 10-15min, taking out, cooling, washing with water until no sulfate ion exists, and drying.
9. The tensile-resistant highly flame-retardant cable according to claim 8, wherein the long-chain alkyl acid salt is a sodium salt of an alkyl acid having 10 to 16 carbon atoms, and at least one hydrogen atom in the sodium salt of the alkyl acid having 10 to 16 carbon atoms is substituted or unsubstituted with fluorine.
10. The tensile-resistant, high-flame-retardant cable of claim 9, wherein the long-chain alkanoate is sodium perfluorododecanoate.
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| CN112853761A (en) * | 2020-12-30 | 2021-05-28 | 青岛天邦线业有限公司 | Pretreatment liquid for dipping aramid fiber flexible cord and aramid fiber flexible cord dipping method |
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| CN201421731Y (en) * | 2009-06-01 | 2010-03-10 | 宝胜科技创新股份有限公司 | Novel environment resistance environment-friendly power cable of shield machine |
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