CN114724757A - Wear-resistant high-temperature-resistant multilayer composite cable and preparation method thereof - Google Patents

Wear-resistant high-temperature-resistant multilayer composite cable and preparation method thereof Download PDF

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CN114724757A
CN114724757A CN202210427528.1A CN202210427528A CN114724757A CN 114724757 A CN114724757 A CN 114724757A CN 202210427528 A CN202210427528 A CN 202210427528A CN 114724757 A CN114724757 A CN 114724757A
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wear
resistant
parts
temperature
plastic film
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谈亮
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JIANGSU HONGXIANG CABLE CO Ltd
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JIANGSU HONGXIANG CABLE CO Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—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
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • 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
    • H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
    • 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
    • H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
    • H01B13/221—Sheathing; Armouring; Screening; Applying other protective layers filling-up interstices
    • 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
    • H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
    • H01B13/227—Pretreatment
    • 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
    • H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
    • H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/189—Radial force absorbing layers providing a cushioning effect
    • 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
    • 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
    • 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

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  • Manufacturing & Machinery (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention provides a wear-resistant and high-temperature-resistant multilayer composite cable and a preparation method thereof, and relates to the technical field of cable preparation, wherein the wear-resistant and high-temperature-resistant multilayer composite cable comprises an outer sleeve, an inner sleeve and a main cable core from outside to inside, and the outer sleeve is a high-wear-resistant flame-retardant modified polypropylene pipe; the preparation method comprises the following steps: s1, preparing an outer sleeve; s2, filling an internal structure; s3, installing an anti-abrasion part; and S4, mounting the buffer shielding assembly. The wear-resistant high-temperature-resistant multilayer composite cable provided by the invention can obviously improve the wear-resistant performance of the cable through the arranged wear-resistant part, reduce the friction on the cable body caused when the cable is buried or erected, and meanwhile, the outer sleeve of the cable is a high-wear-resistant flame-retardant modified polypropylene pipe, so that the cable is good in heat-resistant flame-retardant effect, meets the use requirements under extremely severe environments, and meets the actual production requirements and economic benefits.

Description

Wear-resistant high-temperature-resistant multilayer composite cable and preparation method thereof
Technical Field
The invention relates to the technical field of cable preparation, in particular to a wear-resistant high-temperature-resistant multilayer composite cable and a preparation method thereof.
Background
A cable is a power or signal transmission device, and is generally composed of several wires or groups of wires. The structural elements of wire and cable products can be generally divided into four main structural components of wires, insulation, shielding and sheath, as well as filler elements and tensile elements. Some products have extremely simple structures according to the use requirements and application occasions of the products. The wire and cable manufacturing industry is a material finishing and assembling industry. Firstly, the material consumption is huge, and the material cost in the cable product accounts for 80-90% of the total manufacturing cost; secondly, the types and varieties of the used materials are very many, the performance requirement is very high, for example, the purity of copper for conductors needs to be more than 99.95 percent, and some products need to adopt oxygen-free high-purity copper; thirdly, the selection of the material can have a decisive influence on the manufacturing process, the performance and the service life of the product.
Meanwhile, the benefits of wire and cable manufacturing enterprises are closely related to whether materials can be scientifically saved in the selection, processing and production management of the materials. Therefore, when designing the wire and cable products, the selection of the materials must be carried out simultaneously, and several materials are generally selected and determined through process and performance screening tests. The material for cable products can be classified into a conductive material, an insulating material, a filling material, a shielding material, a sheath material, and the like according to the use position and function thereof. Some of these materials are common to several structural members. Particularly thermoplastic materials such as polyvinyl chloride, polyethylene, etc., can be used on the insulation or jacket by changing a portion of the formulation.
However, the existing multilayer composite cable does not have good wear-resistant and high-temperature-resistant properties, and is easily interfered by environmental factors when the cable is applied to a high-strength severe environment. Patent CN110085364A discloses an anti corrosion type wear-resisting cable, relate to cable technical field, including the cable main part, cable main part outside-in includes the sheath, the armor, fire-retardant inner liner, insulating layer and wire sandwich layer, still be provided with anti corrosion between sheath and the armor, the surface of sheath still is provided with the wearing layer, four recesses have been seted up to the surface of wearing layer, the degree of depth of recess is less than the 1/2 of wearing layer thickness, the axial extension of recess along the cable, four recesses are evenly arranged along the axial of cable, equidistant a plurality of V-arrangement decorative pattern grooves that are equipped with between two adjacent recesses, a plurality of separation grooves have been seted up between two adjacent V-arrangement decorative pattern grooves, a plurality of separation groove form "imitative leaf vein" column structure. The wear-resisting cable of an anti corrosion type of this patent, the wearing layer through setting up can increase the wear resistance of cable, and compares to traditional wear-resisting cable relatively, can reduce the probability that tiny, sharp-pointed solid particle got into the recess to a certain extent. But the cable has not high heat resistance.
Disclosure of Invention
Aiming at the problems, the invention provides a wear-resistant high-temperature-resistant multilayer composite cable and a preparation method thereof.
The technical scheme of the invention is as follows:
a wear-resistant high-temperature-resistant multilayer composite cable comprises an outer sleeve, an inner sleeve and a main cable core from outside to inside, wherein the outer sleeve is a high-wear-resistant flame-retardant modified polypropylene pipe,
the outer sleeve is provided with a plurality of groups of anti-abrasion parts at equal intervals outside, each group of anti-abrasion part is provided with a plurality of anti-abrasion blocks around the circumferential direction of the outer sleeve outer wall, a groove is arranged inside the outer sleeve corresponding to each anti-abrasion block, a buffer shielding assembly is arranged inside the groove and comprises a plurality of copper plastic film tubes which are arranged at equal intervals, an aluminum plastic film shielding layer is arranged between every two adjacent copper plastic film tubes and comprises an aluminum plastic film elastic plate which is attached to the two adjacent copper plastic film tubes and an aluminum plastic film connecting plate which is connected with the two aluminum plastic film elastic plates,
the inner wall of the inner sleeve is closely provided with a plurality of tinned copper braided tubes in a surrounding manner, the interior of each tinned copper braided tube is provided with an insulating electromagnetic shielding tube, the outer wall of each insulating electromagnetic shielding tube is attached to the outer wall of each tinned copper braided tube, the inner wall of each insulating electromagnetic shielding tube is attached to the outer wall of each main cable core,
every two adjacent main cable cores are provided with a plurality of insulating single wires in the middle, the insulating single wires are attached to the outer walls of the main cable cores, fireproof cotton is arranged between the insulating single wires and the inner walls of the insulating electromagnetic shielding pipes, and buffering supporting pipes are arranged in gaps formed in the middle of all the main cable cores.
Furthermore, the number of the anti-abrasion blocks arranged on each anti-abrasion part is 5, 6 or 8, and the number of the main cable cores is 3. The wear-resisting effect of high strength is guaranteed.
Further, the inner sleeve is made of low-smoke halogen-free flame retardant material, and the sectional area of the tinned copper braided tube is 0.6-0.8mm2The thickness of the tinned copper braided tube is 0.08-0.09 mm. The elasticity of the cable is ensured to be good.
Further, the thickness of the copper plastic film tube is 0.02-0.03mm, the thickness of the aluminum plastic film elastic plate is 0.015-0.02mm, the thickness of the aluminum plastic film connecting plate is 0.04-0.05mm, and the sectional area of the insulating single line is 0.35-0.5mm2The sectional area of the buffer supporting tube is 0.2-0.3mm2The thickness of the buffer supporting tube is 0.02-0.03 mm. Make buffering shielding assembly can play good cushioning effect, prevent that abrasionproof portion from causing the injury to the cable body, can play good shielding effect simultaneously again.
Furthermore, the wear-resistant block is made of NBR-PVC rubber-plastic blended foaming material. The NBR-PVC rubber-plastic blending foaming material has higher dispersibility, low rubber Mooney viscosity and good physical and mechanical properties.
The preparation method of any one of the wear-resistant high-temperature-resistant multilayer composite cables comprises the following steps:
s1, preparing an outer sleeve: the raw material comprises, in parts by weight, Al having an average particle diameter of 250nm2O320-22 parts of powder, 75-80 parts of an absolute ethyl alcohol solution, 3-4 parts of a borate coupling agent, 0.5-1 part of coconut oil fatty acid diethanolamide surfactant, 45-50 parts of an acetone solution, 2-3 parts of a silane coupling agent, 24-27 parts of palm fiber, 25-28 parts of ethylenediamine, 36-38 parts of dichloroethane, 2-3 parts of dimethyldichlorosilane, 0.2-0.4 part of N, N-dimethylaniline, 4-6 parts of phenylthiophosphoryl dichloride, 80-88 parts of PP resin, 5-8 parts of a reinforcing agent, 10-12 parts of a lubricant and 5-6 parts of an antioxidant;
s1-1, preparation of an anti-wear agent: mixing Al in the proportion2O3Adding the powder into anhydrous ethanol solution, stirring at 25-28 deg.C for 2 hr, and addingHeating borate coupling agent and coconut oil fatty acid diethanolamide surfactant to 40-45 ℃, simultaneously performing ultrasonic dispersion treatment for 1-2h, then washing for 3 times by using deionized water, and performing vacuum filtration to obtain Al after surface treatment2O3Powder of Al treated by surface treatment2O3Adding the powder into an acetone solution, stirring for reaction for 1-2h, then adding a silane coupling agent and palm fiber, performing ultrasonic dispersion treatment for 0.5h, washing for 3 times by using deionized water, and performing vacuum filtration and drying to obtain a wear-resisting agent;
s1-2, preparing a flame retardant: dissolving ethylenediamine in dichloroethane according to the proportion, stirring for 10-15min to obtain an ethylenediamine solution, then adding dimethyldichlorosilane and N, N-dimethylaniline, heating to 70-75 ℃, adjusting the pH value to 5.5-7, then adding phenylthiophosphoryl dichloride, heating to 105-115 ℃, stirring for reaction for 8-12h, and performing vacuum filtration and drying to obtain the flame retardant;
s1-3, preparing a high-wear-resistance flame-retardant modified polypropylene pipe: adding PP resin, a reinforcing agent, a lubricant, an antioxidant, the wear-resistant agent obtained in the step S1-1 and the flame retardant obtained in the step S1-2 into a high-speed mixer according to the proportion, adjusting the rotating speed to be 150 plus 200r/min, stirring for 0.5-1h to obtain a mixture, introducing the mixture into an extruder, extruding and granulating at the temperature of 160 plus 220 ℃, and obtaining the high-wear-resistant flame-retardant modified polypropylene pipe at the extrusion molding speed of 0.5 m/min;
s1-4, slotting manufacture: putting the high-wear-resistance flame-retardant modified polypropylene pipe obtained in the step S1-3 into a die, and cutting a slot to obtain an outer sleeve;
s2, filling an internal structure: sequentially filling the inner sleeve, the tinned copper braided tube, the insulating electromagnetic shielding tube, the main cable core, the insulating single wire, the fireproof cotton and the buffer supporting tube into the outer sleeve;
s3, installing an anti-abrasion part: installing the wear-resistant part on the outer wall of the outer sleeve in a hot melting mode;
s4, installing a buffer shielding assembly: firstly, the copper-plastic film pipes are arranged in the grooves, and then the aluminum-plastic film shielding layer is arranged between two adjacent copper-plastic film pipes, so that the preparation of the wear-resistant and high-temperature-resistant multilayer composite cable is completed.
Furthermore, the tinned copper braided tube adopts a chemical vapor deposition method to load metal tin. The heat insulation effect is good, and meanwhile, the elastic toughness of the cable can be improved and the weight of the cable can be reduced through the tubular form.
Further, the preparation method of the wear-resistant block in the step S3 includes:
s3-1: according to the mass percentage, mixing 26-30% of acrylonitrile, 33-35% of polyvinyl chloride and the balance of anhydrous sodium chloride to obtain a blended emulsion at the temperature of 80-85 ℃, continuously dropwise adding the anhydrous sodium chloride, stirring and reacting for 20-30min, and washing for 3 times by using deionized water to obtain NBR-PVC coprecipitation glue;
s3-2: introducing the NBR-PVC coprecipitation glue obtained in the step S3-1 into a compression roller at the temperature of 155-160 ℃, plasticating for 20-30min to obtain a blank sheet;
s3-3: and (4) placing the blank sheet obtained in the step S3-2 into a mold, placing the mold on a hot-pressing flat vulcanizing machine at 165-170 ℃, preheating, maintaining the pressure for 10min, and then performing cold pressing and shaping to obtain the wear-resistant block. The wear-resistant block prepared by the method has the advantages of good wear resistance, uniform and compact particles, difficult wear and long service life.
Further, the frequency of the ultrasonic dispersion treatment in the step S1-1 is 75-80kHz, and the temperature of the hot melting in the step S3 is 260 +/-5 ℃. The connection between the wear-resistant block and the outer sleeve is strong.
The invention has the beneficial effects that:
(1) the wear-resistant high-temperature-resistant multilayer composite cable provided by the invention can obviously improve the wear-resistant performance of the cable through the arranged wear-resistant part, reduce the friction on the cable body caused when the cable is buried or erected, and meanwhile, the outer sleeve of the cable is a high-wear-resistant flame-retardant modified polypropylene pipe, so that the cable is good in heat-resistant flame-retardant effect, meets the use requirements of national defense or extremely severe environments, and meets the actual production requirements and economic benefits.
(2) The wear-resistant high-temperature-resistant multilayer composite cable can buffer the vibration generated by the wear-resistant block through the buffer shielding assembly, effectively improves the shock-proof and wear-resistant performance of the cable, prolongs the service life, simultaneously can play a good electromagnetic pulse shielding effect through the aluminum plastic film shielding layer in the buffer shielding assembly, has a good heat insulation effect through the arrangement of the tinned copper braided tube, and can improve the elastic toughness of the cable and reduce the weight of the cable through the tubular form.
(3) The preparation method of the wear-resistant high-temperature-resistant multilayer composite cable optimizes the wear-resistant agent and the flame retardant, so that the prepared outer sleeve has stronger wear resistance and flame retardance, optimizes the wear-resistant part to obtain the NBR-PVC rubber-plastic blended foaming material, and connects the outer sleeve with the wear-resistant part in a hot melting mode to strengthen the wear-resistant effect of the wear-resistant part.
Drawings
FIG. 1 is a schematic view of a composite cable construction of the present invention;
FIG. 2 is a schematic view of the construction of the internal buffer shield assembly of the composite cable of the present invention;
fig. 3 is a flow chart of a method of making a composite cable of the present invention.
The cable comprises a main cable core, an insulating single wire, an anti-abrasion part, an anti-abrasion block, a buffer shielding component, a copper plastic film pipe, an aluminum plastic film elastic plate, a 53 aluminum plastic film connecting plate, a 6-tinned copper braided pipe, a 7-insulating electromagnetic shielding resisting pipe, 8-fireproof cotton and a 9-buffer supporting pipe, wherein the main cable core is 3, the insulating single wire is 31, the anti-abrasion part is 4, the anti-abrasion block is 41, the buffer shielding component is 5, the copper plastic film pipe is 51, the aluminum plastic film elastic plate is 52, the aluminum plastic film connecting plate is 53, the tin-plated copper braided pipe is 6, the insulating electromagnetic shielding resisting pipe is 7, and the buffer supporting pipe is 8.
Detailed Description
Example 1
As shown in fig. 1 and 2, the wear-resistant high-temperature-resistant multilayer composite cable comprises an outer sleeve 1, an inner sleeve 2 and a main cable core 3 from outside to inside, wherein the outer sleeve 1 is a high-wear-resistant flame-retardant modified polypropylene pipe;
a plurality of groups of anti-abrasion parts 4 are arranged outside the outer sleeve 1 at equal intervals, 5, 6 or 8 anti-abrasion blocks 41 are arranged on each group of anti-abrasion parts 4 in the circumferential direction around the outer wall of the outer sleeve 1, each anti-abrasion block 41 is made of NBR-PVC rubber-plastic blended foaming material, a slot 11 is formed in the outer sleeve 1 corresponding to each anti-abrasion block 41, a buffer shielding assembly 5 is arranged in each slot 11, each buffer shielding assembly 5 comprises a plurality of copper-plastic film tubes 51 which are arranged at equal intervals, an aluminum-plastic film shielding layer is arranged between every two adjacent copper-plastic film tubes 51, each aluminum-plastic film shielding layer comprises an aluminum-plastic film elastic plate 52 which is attached to every two adjacent copper-plastic film tubes 51 and an aluminum-plastic film connecting plate 53 which is connected with the two aluminum-plastic film elastic plates 52, the thickness of each copper-plastic film tube 51 is 0.025mm, the thickness of each aluminum-plastic film elastic plate 52 is 0.018mm, and the thickness of each aluminum-plastic film connecting plate 53 is 0.045 mm;
interior sleeve pipe 2 is made for low smoke and zero halogen flame retardant material, and interior sleeve pipe 2 inner wall encircles closely to be arranged and is equipped with a plurality of tin-plated copper and compiles system pipe 6, and tin-plated copper is compiled 6 inside insulating electromagnetic shielding pipes 7 that are equipped with of system pipe, and insulating electromagnetic shielding pipe 7 outer wall is compiled 6 outer walls of system pipe with every tin-plated copper and is laminated, and insulating electromagnetic shielding pipe 7 inner wall and 3 outer wall laminating of every main cable core, and tin-plated copper is compiled the sectional area of managing 6 and is 0.7mm2The thickness of the tinned copper braided tube 6 is 0.085 mm;
the number of the main cable cores 3 is 3, a plurality of insulated single wires 31 are arranged between every two adjacent main cable cores 3, and the sectional area of each insulated single wire 31 is 0.35-0.5mm2The insulating single wire 31 is attached to the outer wall of the main cable core 3, the fireproof cotton 8 is arranged between the insulating single wire 31 and the inner wall of the insulating electromagnetic shielding pipe 7, the buffer support pipe 9 is arranged in a gap formed in the middle of the main cable core 3, and the sectional area of the buffer support pipe 9 is 0.25mm2The thickness of the buffer support tube 9 is 0.025 mm.
A preparation method of a wear-resistant high-temperature-resistant multilayer composite cable, as shown in fig. 3, comprises the following steps:
s1, preparing an outer sleeve 1: the raw material comprises, in parts by weight, Al having an average particle diameter of 250nm2O321 parts of powder, 76 parts of an absolute ethyl alcohol solution, 3 parts of a borate ester coupling agent, 0.8 part of coconut oil fatty acid diethanolamide surfactant, 47 parts of an acetone solution, 2 parts of a silane coupling agent, 25 parts of palm fiber, 26 parts of ethylenediamine, 37 parts of dichloroethane, 3 parts of dimethyldichlorosilane, 0.3 part of N, N-dimethylaniline, 5 parts of phenylthiophosphoryl dichloride, 85 parts of PP (polypropylene) resin, 6 parts of a reinforcing agent, 11 parts of a lubricant, 6 parts of an antioxidant, and the reinforcing agent, the lubricant and the antioxidant are all commercially available products;
s1-1, preparation of an anti-wear agent: mixing Al in the proportion2O3Adding the powder into anhydrous ethanol solution, stirring and reacting at 27 deg.C for 2 hr, and adding borate coupling agent and coconut oil fatty acid diethanolamide surfaceHeating the activating agent to 43 ℃, simultaneously performing ultrasonic dispersion treatment for 1.5h, then washing for 3 times by using deionized water, and performing vacuum filtration to obtain surface-treated Al2O3Powder of Al treated by surface treatment2O3Adding the powder into an acetone solution, stirring for reaction for 1.5h, then adding a silane coupling agent and palm fiber, performing ultrasonic dispersion treatment for 0.5h, washing for 3 times by using deionized water, performing vacuum filtration and drying to obtain a wear-resisting agent, wherein the frequency of the ultrasonic dispersion treatment is 78 kHz;
s1-2, preparing a flame retardant: dissolving ethylenediamine in dichloroethane according to the proportion, stirring for 12min to obtain an ethylenediamine solution, then adding dimethyldichlorosilane and N, N-dimethylaniline, heating to 72 ℃, adjusting the pH value to 6, then adding phenyl thiophosphoryl dichloride, heating to 110 ℃, stirring for reaction for 10h, and carrying out vacuum filtration and drying to obtain the flame retardant;
s1-3, preparing a high-wear-resistance flame-retardant modified polypropylene pipe: adding PP resin, a reinforcing agent, a lubricant, an antioxidant, the wear-resistant agent obtained in the step S1-1 and the flame retardant obtained in the step S1-2 into a high-speed mixer according to the proportion, adjusting the rotating speed to 180r/min, stirring for 0.8h to obtain a mixture, introducing the mixture into an extruder, extruding and granulating at 200 ℃, and extruding and molding at the speed of 0.5m/min to obtain a high-wear-resistant flame-retardant modified polypropylene pipe;
s1-4, manufacturing of the groove 11: putting the high-wear-resistance flame-retardant modified polypropylene pipe obtained in the step S1-3 into a die, and cutting a slot 11 to obtain an outer sleeve 1;
s2, filling an internal structure: sequentially filling the inner sleeve 2, the tinned copper braided tube 6, the insulating electromagnetic shielding tube 7, the main cable core 3, the insulating single wire 31, the fireproof cotton 8 and the buffer supporting tube 9 into the outer sleeve 1, wherein the tinned copper braided tube 6 is loaded with metallic tin by adopting a chemical vapor deposition method;
s3, installing the wear-proof part 4: the anti-abrasion part 4 is arranged on the outer wall of the outer sleeve 1 in a hot melting mode, and the hot melting temperature is 260 ℃;
the preparation method of the wear-resistant block 41 comprises the following steps:
s3-1: according to the mass percentage, taking 28% of acrylonitrile, 34% of polyvinyl chloride and the balance of anhydrous sodium chloride, mixing the acrylonitrile and the polyvinyl chloride to obtain a blended emulsion at 83 ℃, continuously dropwise adding the anhydrous sodium chloride, stirring and reacting for 25min, and washing for 3 times by using deionized water to obtain NBR-PVC coprecipitation glue;
s3-2: introducing the NBR-PVC co-precipitation glue obtained in the step S3-1 into a compression roller at 156 ℃, and plasticating for 25min to obtain a blank sheet;
s3-3: putting the blank sheet obtained in the step S3-2 into a mold, putting the mold on a hot-pressing plate vulcanizing machine at 168 ℃, preheating, maintaining the pressure for 10min, and then carrying out cold pressing and shaping to obtain an anti-abrasion block 41;
s4, installing the buffer shielding assembly 5: firstly, the copper plastic film pipes 51 are arranged in the slot 11, and then the aluminum plastic film shielding layer is arranged between two adjacent copper plastic film pipes 51, so that the preparation of the wear-resistant and high-temperature-resistant multilayer composite cable is completed.
Example 2
The present embodiment is different from embodiment 1 in that:
the thickness of the copper-plastic film pipe 51 is 0.02mm, the thickness of the aluminum-plastic film elastic plate 52 is 0.015mm, the thickness of the aluminum-plastic film connecting plate 53 is 0.04mm, and the sectional area of the tinned copper braided pipe 6 is 0.6mm2The thickness of the tinned copper braided tube 6 is 0.08mm, and the sectional area of the insulated single wire 31 is 0.35mm2The sectional area of the buffering supporting tube 9 is 0.2mm2The thickness of the buffer supporting tube 9 is 0.02 mm.
Example 3
The present embodiment is different from embodiment 1 in that:
the thickness of the copper plastic film pipe 51 is 0.03mm, the thickness of the aluminum plastic film elastic plate 52 is 0.02mm, the thickness of the aluminum plastic film connecting plate 53 is 0.05mm, and the sectional area of the tinned copper braided pipe 6 is 0.8mm2The thickness of the tinned copper braided tube 6 is 0.09mm, and the sectional area of the insulated single wire 31 is 0.5mm2The sectional area of the buffering supporting tube 9 is 0.3mm2The thickness of the buffer supporting tube 9 is 0.03 mm.
Example 4
The present embodiment is different from embodiment 1 in that: s1, the outer sleeve 1 has different preparation process parameters.
S1, preparing an outer sleeve 1:the raw material comprises, by weight, Al having an average particle diameter of 250nm2O320 parts of powder, 75 parts of an absolute ethyl alcohol solution, 3 parts of a borate coupling agent, 0.5 part of a coconut oil fatty acid diethanolamide surfactant, 45 parts of an acetone solution, 2 parts of a silane coupling agent, 24 parts of palm fiber, 25 parts of ethylenediamine, 36 parts of dichloroethane, 2 parts of dimethyldichlorosilane, 0.2 part of N, N-dimethylaniline, 4 parts of phenylthiophosphoryl dichloride, 80 parts of PP (polypropylene) resin, 5 parts of a reinforcing agent, 10 parts of a lubricant, 5 parts of an antioxidant, and the reinforcing agent, the lubricant and the antioxidant are all commercially available products.
Example 5
The present embodiment is different from embodiment 1 in that: s1, the raw material proportion of the outer sleeve 1 is different.
S1, preparing an outer sleeve 1: the raw material comprises, in parts by weight, Al having an average particle diameter of 250nm2O322 parts of powder, 80 parts of an absolute ethyl alcohol solution, 4 parts of a borate coupling agent, 1 part of coconut oil fatty acid diethanolamide surfactant, 50 parts of an acetone solution, 3 parts of a silane coupling agent, 27 parts of palm fiber, 28 parts of ethylenediamine, 38 parts of dichloroethane, 3 parts of dimethyldichlorosilane, 0.4 part of N, N-dimethylaniline, 6 parts of phenylthiophosphoryl dichloride, 88 parts of PP resin, 8 parts of a reinforcing agent, 12 parts of a lubricant, 6 parts of an antioxidant, the reinforcing agent, the lubricant and the antioxidant are all commercially available products.
Example 6
The present embodiment is different from embodiment 1 in that: s1-1, the preparation process parameters of the wear-resistant agent are different.
S1-1, preparation of an anti-wear agent: mixing Al in the proportion2O3Adding the powder into an absolute ethyl alcohol solution, stirring and reacting for 2 hours at 25 ℃, then adding a borate coupling agent and a coconut oil fatty acid diethanolamide surfactant, heating to 40 ℃, simultaneously performing ultrasonic dispersion treatment for 1 hour, then washing for 3 times by using deionized water, and performing vacuum filtration to obtain Al after surface treatment2O3Powder of Al and surface-treated Al2O3Adding the powder into acetone solution, stirring for reaction for 1 hr, adding silane coupling agent and palm fiber, ultrasonic dispersing for 0.5 hr, and usingWashing with deionized water for 3 times, vacuum filtering, and drying to obtain the wear-resisting agent, wherein the frequency of ultrasonic dispersion treatment is 75 kHz.
Example 7
The present embodiment is different from embodiment 1 in that: s1-1, the preparation process parameters of the wear-resistant agent are different.
S1-1, preparation of an anti-wear agent: mixing Al in the proportion2O3Adding the powder into an absolute ethyl alcohol solution, stirring and reacting for 2 hours at 28 ℃, then adding a boric acid ester coupling agent and a coconut oil fatty acid diethanolamide surfactant, heating to 45 ℃, simultaneously carrying out ultrasonic dispersion treatment for 2 hours, then washing for 3 times by using deionized water, and carrying out vacuum filtration to obtain Al subjected to surface treatment2O3Powder of Al treated by surface treatment2O3Adding the powder into an acetone solution, stirring for reaction for 2h, then adding a silane coupling agent and palm fiber, performing ultrasonic dispersion treatment for 0.5h, washing for 3 times by using deionized water, performing vacuum filtration and drying to obtain the wear-resisting agent, wherein the frequency of the ultrasonic dispersion treatment is 80 kHz.
Example 8
The present embodiment is different from embodiment 1 in that: s1-2, the flame retardant has different preparation process parameters.
S1-2, preparing a flame retardant: dissolving ethylenediamine in dichloroethane according to the proportion, stirring for 10min to obtain an ethylenediamine solution, then adding dimethyldichlorosilane and N, N-dimethylaniline, heating to 70 ℃, adjusting the pH value to 5.5, then adding phenylthiophosphoryl dichloride, heating to 105 ℃, stirring for reacting for 8h, and carrying out vacuum filtration and drying to obtain the flame retardant.
Example 9
The present embodiment is different from embodiment 1 in that: s1-2, the flame retardant has different preparation process parameters.
S1-2, preparing a flame retardant: dissolving ethylenediamine in dichloroethane according to the proportion, stirring for 15min to obtain an ethylenediamine solution, then adding dimethyldichlorosilane and N, N-dimethylaniline, heating to 75 ℃, adjusting the pH value to 7, then adding phenyl thiophosphoryl dichloride, heating to 115 ℃, stirring for reaction for 12h, and carrying out vacuum filtration and drying to obtain the flame retardant.
Example 10
The present embodiment is different from embodiment 1 in that: s1-3, the high wear-resistant flame-retardant modified polypropylene pipe has different preparation process parameters.
S1-3, preparing a high-wear-resistance flame-retardant modified polypropylene pipe: adding the PP resin, the reinforcing agent, the lubricant, the antioxidant, the wear-resistant agent obtained in the step S1-1 and the flame retardant obtained in the step S1-2 into a high-speed mixer according to the mixture ratio, adjusting the rotating speed to 150r/min, stirring for 0.5h to obtain a mixture, introducing the mixture into an extruder, extruding and granulating at 160 ℃, and extruding and molding at the speed of 0.5m/min to obtain the high-wear-resistant flame-retardant modified polypropylene pipe.
Example 11
The present embodiment is different from embodiment 1 in that: s1-3, the high wear-resistant flame-retardant modified polypropylene pipe has different preparation process parameters.
S1-3, preparing a high-wear-resistance flame-retardant modified polypropylene pipe: adding PP resin, a reinforcing agent, a lubricant, an antioxidant, the wear-resisting agent obtained in the step S1-1 and the flame retardant obtained in the step S1-2 into a high-speed mixer according to the mixture ratio, adjusting the rotating speed to 200r/min, stirring for 1h to obtain a mixture, introducing the mixture into an extruder, extruding and granulating at 220 ℃ and the extrusion molding speed to 0.5m/min to obtain the high-wear-resistance flame-retardant modified polypropylene pipe.
Example 12
The present embodiment is different from embodiment 1 in that: and S3, the wear-resistant part 4 has different installation process parameters.
S3, installing the wear-proof part 4: the anti-abrasion part 4 is arranged on the outer wall of the outer sleeve 1 in a hot melting mode, and the hot melting temperature is 255 ℃;
the preparation method of the wear-resistant block 41 comprises the following steps:
s3-1: according to the mass percentage, taking 26% of acrylonitrile, 33% of polyvinyl chloride and the balance of anhydrous sodium chloride, mixing the acrylonitrile and the polyvinyl chloride to obtain a blended emulsion at the temperature of 80 ℃, continuously dropwise adding the anhydrous sodium chloride, stirring and reacting for 20min, and washing for 3 times by using deionized water to obtain NBR-PVC coprecipitation glue;
s3-2: introducing the NBR-PVC coprecipitation glue obtained in the step S3-1 into a compression roller at 155 ℃, and plasticating for 20min to obtain a blank sheet;
s3-3: and (3) putting the blank sheet obtained in the step S3-2 into a mold, putting the mold on a hot-pressing flat vulcanizing machine at 165 ℃, preheating, keeping the pressure for 10min, and then carrying out cold pressing and shaping to obtain the wear-resisting block 41.
Example 13
The present embodiment is different from embodiment 1 in that: and S3, the wear-resistant part 4 has different installation process parameters.
S3, installing the wear-proof part 4: installing the wear-resistant part 4 on the outer wall of the outer sleeve 1 in a hot melting mode, wherein the hot melting temperature is 265 ℃;
the preparation method of the wear-resistant block 41 comprises the following steps:
s3-1: according to the mass percentage, 30% of acrylonitrile, 35% of polyvinyl chloride and the balance of anhydrous sodium chloride are taken, the acrylonitrile and the polyvinyl chloride are mixed to obtain a blended emulsion under the condition of 85 ℃, the anhydrous sodium chloride is continuously dripped, stirred and reacted for 30min, and the NBR-PVC co-precipitation glue is obtained after washing for 3 times by using deionized water;
s3-2: introducing the NBR-PVC co-precipitation glue obtained in the step S3-1 into a press roll at 160 ℃, and plasticating for 30min to obtain a blank sheet;
s3-3: and (4) putting the blank sheet obtained in the step (S3-2) into a mold, putting the mold on a hot-pressing plate vulcanizing machine at 170 ℃, preheating, maintaining the pressure for 10min, and then performing cold pressing and shaping to obtain the wear-resisting block 41.
Examples of the experiments
The comprehensive performance of the composite cable prepared in example 1 is tested by combining with a specific experiment, and meanwhile, the composite cable is compared with other groups of cables, wherein the comparative example 1 is a common composite cable sold in the conventional market;
comparative example 2 is substantially the same as example 1 except that a commercially available anti-wear agent was used;
comparative example 3 is substantially the same as example 1 except that a commercially available flame retardant was used as the flame retardant;
comparative example 4 is substantially the same as example 1, except that the wear block 41 is a commercially available plastic;
the results of the experiment are shown in table 1.
Figure BDA0003608960580000121
As can be seen from the data in Table 1, compared with the general composite cable sold in the market, the composite cable prepared by the preparation method provided by the invention has the advantages that the abrasion rate and the high-temperature indentation depth at 100 ℃ are obviously improved, and the magnetic attenuation is also improved to a certain extent, so that the composite cable provided by the invention can effectively improve the wear resistance and the high-temperature resistance;
compared with the comparative example 2, the wear-resisting agent provided by the invention can improve the wear rate of a test piece by 3%;
comparing example 1 with comparative example 3, after the flame retardant provided by the invention is used, the indentation depth at high temperature of 100 ℃ is improved by 0.09mm, which shows that the flame retardant can improve the high temperature resistance and the wear resistance after being matched with the composite cable;
comparing example 1 with comparative example 4, after the wear-resistant block 41 provided by the invention is used, the wear rate and the indentation depth at high temperature of 100 ℃ are both remarkably improved, which shows that the performance of the wear-resistant block 41 provided by the invention is obviously superior to that of a common plastic wear-resistant block.

Claims (9)

1. A wear-resistant high-temperature-resistant multilayer composite cable is characterized by comprising an outer sleeve (1), an inner sleeve (2) and a main cable core (3) from outside to inside, wherein the outer sleeve (1) is a high-wear-resistant flame-retardant modified polypropylene pipe,
the outer sleeve (1) is provided with a plurality of groups of anti-abrasion parts (4) at equal intervals, each group of anti-abrasion parts (4) is provided with a plurality of anti-abrasion blocks (41) around the outer wall circumference of the outer sleeve (1), each anti-abrasion block (41) corresponds to one groove (11) in the outer sleeve (1), each groove (11) is internally provided with a buffer shielding assembly (5), each buffer shielding assembly (5) comprises a plurality of copper plastic film tubes (51) arranged at equal intervals, an aluminum plastic film shielding layer is arranged between every two adjacent copper plastic film tubes (51), each aluminum plastic film shielding layer comprises an aluminum plastic film elastic plate (52) attached to every two adjacent copper plastic film tubes (51) and an aluminum plastic film connecting plate (53) connecting the two aluminum plastic film elastic plates (52),
the inner wall of the inner sleeve (2) is provided with a plurality of tinned copper braided tubes (6) in a surrounding and tight arrangement manner, the insulating electromagnetic shielding tubes (7) are arranged inside the tinned copper braided tubes (6), the outer walls of the insulating electromagnetic shielding tubes (7) are attached to the outer walls of each tinned copper braided tube (6), the inner walls of the insulating electromagnetic shielding tubes (7) are attached to the outer walls of each main cable core (3),
adjacent two the portion is equipped with a plurality of insulation single line (31) between main cable core (3), insulation single line (31) and the laminating of main cable core (3) outer wall, insulation single line (31) with be equipped with fireproof cotton (8) between insulation electromagnetic shielding pipe (7) inner wall, be equipped with in the space that all main cable core (3) middle parts formed and cushion stay tube (9).
2. A wear-resistant high-temperature-resistant multilayer composite cable according to claim 1, wherein each group of wear-resistant parts (4) is provided with 5, 6 or 8 wear-resistant blocks (41), and the number of the main cable cores (3) is 3.
3. The wear-resistant high-temperature-resistant multilayer composite cable according to claim 1, wherein the inner sleeve (2) is made of a low-smoke halogen-free flame-retardant material, and the cross-sectional area of the tinned copper braided tube (6) is 0.6-0.8mm2The thickness of the tinned copper braided tube (6) is 0.08-0.09 mm.
4. A wear-resistant high-temperature-resistant multilayer composite cable according to claim 1, wherein the thickness of the copper-plastic film tube (51) is 0.02-0.03mm, the thickness of the aluminum-plastic film elastic plate (52) is 0.015-0.02mm, the thickness of the aluminum-plastic film connecting plate (53) is 0.04-0.05mm, and the cross-sectional area of the insulating single wire (31) is 0.35-0.5mm2The sectional area of the buffer supporting tube (9) is 0.2-0.3mm2The thickness of the buffer supporting tube (9) is 0.02-0.03 mm.
5. The wear-resistant high-temperature-resistant multilayer composite cable as claimed in claim 1, wherein the wear-resistant block (41) is NBR-PVC rubber-plastic blended foam material.
6. A method for preparing a wear and high temperature resistant multilayer composite cable according to any one of claims 1 to 5, characterized in that it comprises the following steps:
s1, preparing an outer sleeve (1): the raw material comprises, in parts by weight, Al having an average particle diameter of 250nm2O320-22 parts of powder, 75-80 parts of an absolute ethyl alcohol solution, 3-4 parts of a borate coupling agent, 0.5-1 part of coconut oil fatty acid diethanolamide surfactant, 45-50 parts of an acetone solution, 2-3 parts of a silane coupling agent, 24-27 parts of palm fiber, 25-28 parts of ethylenediamine, 36-38 parts of dichloroethane, 2-3 parts of dimethyldichlorosilane, 0.2-0.4 part of N, N-dimethylaniline, 4-6 parts of phenylthiophosphoryl dichloride, 80-88 parts of PP resin, 5-8 parts of a reinforcing agent, 10-12 parts of a lubricant and 5-6 parts of an antioxidant;
s1-1, preparation of an anti-wear agent: mixing Al in the proportion2O3Adding the powder into an absolute ethyl alcohol solution, stirring and reacting for 2h at 25-28 ℃, then adding a borate coupling agent and a coconut oil fatty acid diethanolamide surfactant, heating to 40-45 ℃, simultaneously performing ultrasonic dispersion treatment for 1-2h, then washing for 3 times by using deionized water, and performing vacuum filtration to obtain Al after surface treatment2O3Powder of Al treated by surface treatment2O3Adding the powder into an acetone solution, stirring for reaction for 1-2h, then adding a silane coupling agent and palm fiber, performing ultrasonic dispersion treatment for 0.5h, washing for 3 times by using deionized water, and performing vacuum filtration and drying to obtain a wear-resisting agent;
s1-2, preparing a flame retardant: dissolving ethylenediamine in dichloroethane according to the proportion, stirring for 10-15min to obtain ethylenediamine solution, then adding dimethyldichlorosilane and N, N-dimethylaniline, heating to 70-75 ℃, adjusting the pH to 5.5-7, then adding phenylthiophosphoryl dichloride, heating to 105-;
s1-3, preparing a high-wear-resistance flame-retardant modified polypropylene pipe: adding PP resin, a reinforcing agent, a lubricant, an antioxidant, the wear-resistant agent obtained in the step S1-1 and the flame retardant obtained in the step S1-2 into a high-speed mixer according to the proportion, adjusting the rotating speed to be 150 plus 200r/min, stirring for 0.5-1h to obtain a mixture, introducing the mixture into an extruder, extruding and granulating at the temperature of 160 plus 220 ℃, and obtaining the high-wear-resistant flame-retardant modified polypropylene pipe at the extrusion molding speed of 0.5 m/min;
s1-4, manufacturing of a groove (11): putting the high-wear-resistance flame-retardant modified polypropylene pipe obtained in the step S1-3 into a die, and cutting a slot (11) to obtain an outer sleeve (1);
s2, filling an internal structure: sequentially filling the inner sleeve (2), the tinned copper braided tube (6), the insulating electromagnetic shielding tube (7), the main cable core (3), the insulating single wire (31), the fireproof cotton (8) and the buffer supporting tube (9) in the outer sleeve (1);
s3, installing the anti-abrasion part (4): the anti-abrasion part (4) is arranged on the outer wall of the outer sleeve (1) in a hot melting mode;
s4, installing the buffer shielding assembly (5): firstly, the copper plastic film pipes (51) are arranged in the slots (11), and then the aluminum plastic film shielding layer is arranged between two adjacent copper plastic film pipes (51), so that the preparation of the wear-resistant and high-temperature-resistant multilayer composite cable is completed.
7. The method for preparing a wear-resistant and high-temperature-resistant multilayer composite cable according to claim 6, wherein the tinned copper braided tube (6) is loaded with metallic tin by chemical vapor deposition.
8. The method for preparing a wear-resistant and high-temperature-resistant multilayer composite cable according to claim 6, wherein the wear-resistant block (41) in step S3 is prepared by:
s3-1: according to the mass percentage, mixing 26-30% of acrylonitrile, 33-35% of polyvinyl chloride and the balance of anhydrous sodium chloride to obtain a blended emulsion at the temperature of 80-85 ℃, continuously dropwise adding the anhydrous sodium chloride, stirring and reacting for 20-30min, and washing for 3 times by using deionized water to obtain NBR-PVC coprecipitation glue;
s3-2: introducing the NBR-PVC coprecipitation glue obtained in the step S3-1 into a compression roller at the temperature of 155-160 ℃, plasticating for 20-30min to obtain a blank sheet;
s3-3: and (4) placing the blank sheet obtained in the step S3-2 into a mold, placing the mold on a hot-pressing flat vulcanizing machine at 165-170 ℃, preheating, maintaining the pressure for 10min, and then performing cold pressing and shaping to obtain the wear-resisting block (41).
9. The method for preparing a wear-resistant and high-temperature-resistant multilayer composite cable according to claim 6, wherein the ultrasonic dispersion treatment frequency in the step S1-1 is 75-80kHz, and the temperature of the hot melting in the step S3 is 260 +/-5 ℃.
CN202210427528.1A 2022-04-21 2022-04-21 Wear-resistant high-temperature-resistant multilayer composite cable and preparation method thereof Pending CN114724757A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116462922A (en) * 2023-05-06 2023-07-21 广东澳通特种电缆有限公司 Fireproof flame-retardant cable and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116462922A (en) * 2023-05-06 2023-07-21 广东澳通特种电缆有限公司 Fireproof flame-retardant cable and preparation method thereof
CN116462922B (en) * 2023-05-06 2023-09-29 广东澳通特种电缆有限公司 Fireproof flame-retardant cable and preparation method thereof

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