CN110591190B - Environment-friendly wear-resistant cable - Google Patents

Environment-friendly wear-resistant cable Download PDF

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CN110591190B
CN110591190B CN201910879085.8A CN201910879085A CN110591190B CN 110591190 B CN110591190 B CN 110591190B CN 201910879085 A CN201910879085 A CN 201910879085A CN 110591190 B CN110591190 B CN 110591190B
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wear
parts
resistant
cable
insulating layer
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CN110591190A (en
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周民主
陈锦升
徐通
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Yanggu Xinhui Cable Co.,Ltd.
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Yanggu Xinhui Cable Co ltd
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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
    • C08L15/00—Compositions of rubber derivatives
    • C08L15/005—Hydrogenated nitrile rubber
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/0045—Cable-harnesses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/24—Devices affording localised protection against mechanical force or pressure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29—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
    • 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
    • H01B7/36—Insulated conductors or cables characterised by their form with distinguishing or length marks
    • H01B7/361—Insulated conductors or cables characterised by their form with distinguishing or length marks being the colour of the insulation or conductor
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2315/00—Characterised by the use of rubber derivatives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2449/00—Characterised by the use of homopolymers or copolymers of compounds having one or more carbon-to-carbon triple bonds; Derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2217—Oxides; Hydroxides of metals of magnesium
    • C08K2003/222—Magnesia, i.e. magnesium oxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2296—Oxides; Hydroxides of metals of zinc
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/04—Antistatic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Abstract

The invention belongs to the technical field of cables, and particularly relates to an environment-friendly wear-resistant cable which comprises a main conductor and an auxiliary conductor, wherein the surface of the main conductor is wrapped with a first insulating layer, the surface of the auxiliary conductor is wrapped with a second insulating layer, and adjacent auxiliary conductors are arranged in parallel and are connected into a whole through the second insulating layer to form a flat conductor group; a concave part is arranged at one edge of the first insulating layer and is positioned at the inner side of the first insulating layer; the outer side surface of the second insulating layer on one side surface of the lead group is provided with a convex part, and the convex part is matched with the concave part of the first insulating layer; the lead group is annularly wound outside the main conductor and is fixed by glue; the outer side of the fixed lead group is wrapped with a plurality of layers of wear-resistant waterproof cloth and is fixed by gluing; the waterproof cloth is wrapped with a wear-resistant rubber layer; according to the invention, the cable with wear resistance and tear resistance can be produced by the production method of the environment-friendly wear-resistant cable, and meanwhile, the cable provided by the invention has the advantage that the problem that the cable cannot be distinguished when the number of the cable conductors is large is solved.

Description

Environment-friendly wear-resistant cable
Technical Field
The invention belongs to the technical field of cables, and particularly relates to an environment-friendly wear-resistant cable.
Background
With the development of society, environmental protection is more and more important, and in order to improve the environmental protection performance of cables, some inorganic flame retardant materials, such as aluminum hydroxide, magnesium hydroxide and other flame retardants, are generally added into the polymer materials used for manufacturing cable insulation and protective layers to improve the flame retardant performance of the materials, but the addition of the fillers is limited, the electrical performance and the mechanical performance of the cables can be reduced by adding the fillers, and if the fillers are added too much, the electrical performance and the mechanical performance of the cables cannot meet the use requirements. Although these inorganic fillers are added, the cable still burns and emits harmful substances under the condition of flame, therefore, the generation of pollutants caused by the burning of the cable should be avoided as much as possible, the cable sheath material and the fillers can be added with a little flame retardant, but for the cable outer insulation material, only a little flame retardant is added to ensure the electrical property, but even then, the wear resistance, the ageing resistance and the antistatic property of the cable outer insulation material still need to be improved, and the preparation process of the cable still needs to be improved.
Meanwhile, in the using process of the cable, because the number of required electric conductors is large, the required use can be realized only by arranging a plurality of cables in parallel, and the plurality of cables are arranged in parallel, and the colors of most of the cables are similar, so that people can hardly distinguish the connection relation between the corresponding cable and other lines, on the other hand, dozens of or twenty electric conductors are arranged in some cables and are difficult to distinguish only through the colors, so that the electric conductors in the cable are an important problem, in addition, most of the outermost sheaths of the cables have wear resistance, but the common wear resistance is poorer, especially when the cables are used in an area with broken stones or easy to scratch, the outermost sheaths of the cables are easily cut by sharp broken stones and the broken stones are cut deeper and enter the inner layers of the cables, therefore, the safety protection and the wear resistance of the cable need to be considered.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides the environment-friendly wear-resistant cable which can solve the problems of poor wear resistance, poor protection, easy aging and the like of the cable skin and the problem that different conductors are difficult to distinguish when the number of the conductors in the cable is large.
The technical scheme adopted by the invention for solving the technical problems is as follows: the environment-friendly wear-resistant cable comprises a wear-resistant rubber layer, wherein the wear-resistant rubber layer is made of the following materials in parts by weight:
40-50 parts of hydrogenated nitrile rubber, 20-30 parts of polyvinyl chloride resin, 10-18 parts of natural rubber, 12-20 parts of ethylene-octene copolymer, 5-13 parts of silane coupling agent, 5-10 parts of modified PP (polypropylene), 0.5-1 part of neoprene, 1-2 parts of sulfur, 2-5 parts of zinc oxide, 2-4 parts of magnesium oxide, 2.5-4 parts of magnesium hydroxide inorganic flame retardant, 1-2 parts of antimony trioxide, 10-20 parts of carbon microsphere, 5-10 parts of cast stone powder, 5-15 parts of nano carbon black, 15-20 parts of nano argil, 1-2 parts of CPE (chlorinated polyethylene) special stabilizer, 5-7 parts of trioctyl trimellitate, 0.5-1.5 parts of paraffin, 1.5-3 parts of stearic acid and 1-5 parts of pressure-sensitive microcapsule; 1-5 parts of nano silicon dioxide particles.
The surface of the wear-resistant rubber layer is coated with a reversible thermal change material, and the temperature sensing range of the reversible thermal change material is 60-130 ℃. When in work, various reversible thermal change materials with the temperature sensing range of 60-130 ℃ are infiltrated or coated on the surface of the wear-resistant rubber layer, so that the ring can be madeThe surface color of the wear-resistant rubber layer is changed when the temperature of the surface of the environment-friendly wear-resistant cable reaches the temperature sensing range, so that the temperature of the environment-friendly wear-resistant cable can be judged by naked eyes, the environment-friendly wear-resistant cable can be artificially cooled and protected, the ETCD polydiacetylene changes color at 115 ℃, and CoCl2·2C6H12·10H2The color of the environment-friendly wear-resistant cable is changed at 75 degrees, the real-time temperature of the environment-friendly wear-resistant cable can be judged according to the color change of the outer surface of the environment-friendly wear-resistant cable at different stages, and the environment-friendly wear-resistant cable can be artificially cooled and protected; wherein, CoCl2·2C6H12·10H2The reaction formula for O discoloring at 75 ° is:
Figure BDA0002205310670000021
the pressure-sensitive microcapsule contains a modified PP material with Izod notched impact strength of more than or equal to 120J/m. Through the modified PP material with the grade of KHPP-T223, the integral Izod notch impact strength and the fracture elongation of the wear-resistant rubber layer can be effectively improved.
The wear-resistant rubber layer also comprises 1-2 parts of calcium-zinc stabilizer and 2-3 parts of dodecyl dimethyl betaine according to parts by weight.
The material used for the wear-resistant rubber layer is produced by the following process steps:
the method comprises the following steps: blending and granulating hydrogenated nitrile rubber, polyvinyl chloride resin, natural rubber and ethylene-octene copolymer;
step two: adding silane coupling agent, zinc oxide, magnesium hydroxide inorganic flame retardant, antimony trioxide, carbon microspheres, cast stone powder, nano carbon black, nano argil, CPE special stabilizer, trioctyl trimellitate, paraffin, stearic acid, nano silicon dioxide particles, pressure-sensitive microcapsules, calcium zinc stabilizer and dodecyl dimethyl betaine for mixing, wherein the rotating speed of an internal mixer is 42-50 r/min, the temperature of the initial feeding internal mixer is 42-50 ℃, the melted modified PP material is added when the temperature is raised to 62-65 ℃ at the speed of 1 ℃/min, the rotating speed of the internal mixer is 60-70 r/min, the temperature is raised to 75-80 ℃ at the speed of 5 ℃/min, the mixture is continuously stirred for 1-2min, and the mixture is vacuumized, and is discharged after the negative pressure is maintained to be 0.5-1 MPa;
step three: placing the film in a film cooler to be cooled to below 40 ℃;
step four: putting the cooled rubber sheet into a vulcanizing machine, adding chloroprene rubber and sulfur, uniformly mixing, wherein the vulcanizing time is 5-6min, the vulcanizing temperature is 120-135 ℃, discharging the rubber sheet, cooling, and standing for 25-30h to obtain a high-strength wear-resistant rubber material;
step five: forming the obtained high-strength wear-resistant rubber material into a wear-resistant rubber layer, and coating a plurality of reversible thermal change materials on the surface, wherein the color change types of the materials are different, and the temperature sensing range of the reversible thermal change materials is 60-130 ℃; ETCD polydiacetylene discoloration at 115 ℃ CoCl2·2C6H12·10H2Changing color of O at 75 ℃;
the environment-friendly wear-resistant cable also comprises a main conductor, an auxiliary conductor and a lead group, wherein the surface of the main conductor is wrapped with a first insulating layer, the surface of the auxiliary conductor is wrapped with a second insulating layer, and the adjacent auxiliary conductors are arranged in parallel and are connected into a whole through the second insulating layer to form a flat lead group; the section of the first insulating layer is in a hollow circular ring shape, a concave part for press buckling connection is arranged on one edge of the first insulating layer, and the concave part is positioned on the inner side of the first insulating layer; the outer side surface of the second insulating layer on one side surface of the lead group is provided with a convex part for pressing, buckling and connecting, and the convex part is matched with the concave part of the first insulating layer; the lead group is annularly wound outside the main conductor and is fixed by glue; the outer side of the fixed lead group is wrapped with a plurality of layers of wear-resistant waterproof cloth and is fixed by gluing; the wear-resistant rubber layer is used for wrapping the solid waterproof cloth; the diameter of the main conductor wrapped with the first insulating layer is larger than the thickness of the conductor group; an isolation layer and a shielding layer are sequentially arranged between the main conductor and the first insulating layer and between the auxiliary conductor and the second insulating layer. When the cable winding machine works, the outermost wear-resistant rubber layer plays a wear-resistant protection role, requirements of electrification, communication, grounding wires and the like are met through the main conductor and the auxiliary conductor, the wear-resistant rubber layer can be integrally formed with the main conductor, the lead group and the wear-resistant waterproof cloth which are wrapped with the first insulating layer through a cable extruder, or the main conductor, the lead group, the wear-resistant waterproof cloth and other components which are wrapped with the first insulating layer through the planar wear-resistant rubber layer can be completely wrapped, and then the side face of the wear-resistant rubber layer is softened through a red metal sheet to form the wear-resistant rubber layer into a ring shape; wherein, the main conductor of parcel No. one insulating layer, the secondary conductor of surface parcel No. two insulating layers can be according to 1: n, the auxiliary conductors contained in the flat conductor set can be made into a conductor set with two groups of auxiliary conductors, a conductor set with three groups of auxiliary conductors, a conductor set with four groups of auxiliary conductors and a conductor set with more than four groups of auxiliary conductors according to actual requirements, and then the conductor sets are formed by winding and bonding, so that the width of the integral environment-friendly wear-resistant cable is favorably reduced, the integral wiring and installation of the environment-friendly wear-resistant cable are convenient, and meanwhile, when the environment-friendly wear-resistant cable containing more than ten auxiliary conductors is needed, the winding of the conductor sets is carried out, and disorder is not easy to generate; the glue related to the scheme can be water-proof and aging-resistant QIS-5708 silica gel-bonded metal plastic glue which is resistant to high temperature of 300 ℃; CL-24/26AB glue, modified epoxy structural glue with high temperature resistance of over 120 ℃ or other glue selected according to actual requirements can be selected; when the wear-resistant rubber layer of the environment-friendly wear-resistant cable is seriously worn, the wear-resistant rubber layer can be removed through melting the environment-friendly wear-resistant cable and glue, and a new wear-resistant rubber layer is replaced, when the environment-friendly wear-resistant cable needs to increase the number of auxiliary conductors, the winding can be realized through connecting and supplementing the second concave parts and the convex parts on the conductor group according to actual requirements, so that the environment-friendly wear-resistant cable can be conveniently replaced when the main conductors and the auxiliary conductors in the environment-friendly wear-resistant cable need to be replaced, the integral scrapping of the environment-friendly wear-resistant cable is avoided, the environment-friendly wear-resistant cable is protected, and meanwhile, the wear-resistant rubber layer has the effects of wear resistance and tear resistance, and the integral environmental protection and wear resistance of the environment-resistant cable are further improved; thirdly, if the lead group and the main conductor wrapped with the first insulating layer are convenient to disassemble, the lead group and the main conductor wrapped with the first insulating layer can be selected according to actual requirements without gluing during winding;
slip rings are sequentially arranged on the outer surface of the wear-resistant rubber layer at intervals; the slip ring comprises two semicircular blocks which can be mutually inserted, and the edges of two ends of each semicircular block are tangent to the outer surface of the wear-resistant rubber layer; and the inner surfaces of the two semicircular blocks are provided with elastic pieces; the elastic sheet is made of polyurethane rubber or polyethylene fiber material; the inner diameter of the slip ring with the elastic sheet is matched with the outer diameter of the wear-resistant rubber layer of the environment-friendly wear-resistant cable; when in use, the two semicircular blocks are clamped on the outer surfaces of the wear-resistant rubber layers of the environment-friendly wear-resistant cable and are mutually pressed and buckled, and the gluing is firm when necessary; the sliding ring that forms through two semicircle blocks can add the outer fixed firm of environment-friendly wear-resisting cable on the one hand, on the other hand can be to environment-friendly wear-resisting cable be by dragging and touch sharp thing and block when tearing, avoid environment-friendly wear-resisting cable to last to be torn, on the other hand, the external diameter because of the sliding ring is greater than wear-resisting rubber layer's external diameter, when dragging environment-friendly wear-resisting cable, the sliding ring can reduce the wearing and tearing situation on wear-resisting rubber layer and ground, be favorable to improving environment-friendly wear-resisting cable's life, and the both ends edge of semicircle block all is tangent with wear-resisting rubber layer surface, can make environment-friendly wear-resisting cable avoid the barrier, and then make things convenient for environment-friendly wear-resisting cable to be dragged by the winding.
And a second concave part for press buckling connection is arranged on the outer side surface of the second insulating layer on the other side surface of the wire group, and the convex part on one wire group can be connected with the second concave part of the wire group or the second concave part on the other wire group in a press buckling manner. The during operation, be used for pressing the second concave part that the lock is connected through setting up in a side of wire group, another side at wire group sets up the convex part that is used for pressing the lock and connects, can realize the combination of a plurality of wire groups, can replace when user demand changes, increase or reduce the quantity of wire group and the quantity of auxiliary conductor, be convenient for the roll-up of wire group and reduce the holistic width of environment-friendly wear-resisting cable, make things convenient for the holistic wiring installation of environment-friendly wear-resisting cable, especially, be fit for the cable use of more auxiliary conductor, especially, need the cable of five or more than ten auxiliary conductors, go on through the form that wire group convolutes, and apply different colours to a plurality of auxiliary conductor outer surfaces and distinguish, and then make a plurality of auxiliary conductors difficult production in disorder, the problem of knoing appears.
And at least two groups of auxiliary conductors are arranged in the lead group, and the auxiliary conductors in each group are separated by a second insulating layer. When the cable is in work, the main conductor and the auxiliary conductors can be single metal wire conductors such as a composite hinged conductor, a bundle hinged conductor, a common hinged conductor, a special-shaped conductor sector, a tile shape and the like, and each group of auxiliary conductors are separated by a second insulating layer to form a plurality of auxiliary conductors.
The lead group also comprises a rectangular rubber block with a right-angled triangle-shaped section; the length of the rubber block along the axial direction of the auxiliary conductor is the same as the length of the wire group, one of the right-angle sides of the rubber block is equal in thickness to the wire group, the second convex part which is the same as the upper structure of the wire group is arranged on the right-angle side of the rubber block, and the rubber block and the wire group are wrapped on the outer side of the main conductor together so that the cross section of the main conductor wrapped with the first insulating layer, the wire group and the rubber block after being wrapped tends to be circular.
The production preparation of the material used for the wear-resistant rubber layer uses hydrogenated nitrile rubber as a main material and uses polyvinyl chloride resin and natural rubber as auxiliary materials, so that the product has higher wear resistance and tear resistance, and has good adhesion and aging resistance, wherein the tensile strength of the hydrogenated nitrile rubber is more than 30MPa, the tensile strength of partially improved hydrogenated nitrile rubber is more than 60MPa, and the service life of the hydrogenated nitrile rubber at the temperature of below 120 ℃ is ten thousand hours, so that the wear-resistant rubber layer has basic strength on the whole; the polyvinyl chloride resin has the advantages that the heat resistance, the toughness and the ductility of the wear-resistant rubber layer are enhanced, so that the main characteristics of the wear-resistant rubber layer are determined; the ethylene-octene copolymer is used as a toughening agent, so that the toughness of the product is improved, and the wear resistance and tear strength of the product are improved; the neoprene is taken as a vulcanization accelerator, the zinc oxide is taken as an activator, and the sulfur is taken as a vulcanizing agent; the hydrogenated nitrile rubber, the polyvinyl chloride resin and the natural rubber are compounded and vulcanized, so that the generated vulcanized rubber has better scorch resistance and storage safety, can ensure higher vulcanization speed and flat vulcanization property, has better comprehensive physical and mechanical properties, and also improves the wear resistance, the aging resistance and the compression permanent deformation performance; magnesium oxide, zinc oxide, antimony trioxide, carbon microspheres, nano carbon black, nano argil, cast stone powder, modified kaolin and nano silicon dioxide particles are added as reinforcing agents, and stearic acid, trioctyl trimellitate and paraffin are added as auxiliary materials, so that the compatibility of the main material and the reinforcing agents is improved, the wear resistance and tear resistance of the product are improved, the strength and hardness of the product are also improved, and the cost of the product is reduced; the magnesium oxide, the antimony trioxide and the magnesium hydroxide inorganic flame retardant are matched to form a flame retardant system of the product, so that the heat-resistant flame retardant property of the product is greatly improved; self-restoring force is enhanced by adding the pressure-sensitive microcapsules;
a production method of an environment-friendly wear-resistant cable is used for producing the environment-friendly wear-resistant cable and comprises the following production steps:
s1: pressing and buckling the main conductor wrapped with the first insulating layer and the flat conductor group through the concave-convex part;
if the number of the auxiliary conductors in the lead group is not enough, the concave part on the lead group connected with the main conductor is connected with the convex part on the other lead group in a pressing and buckling way so as to achieve the required number of the auxiliary conductors, and whether the rubber block with the convex part is connected on the concave part of the lead group at the tail end in a pressing and buckling way is selected according to the actual requirement;
s2: after step S1, applying glue to the surface of the flat wire group that contacts the first insulation layer, and tightly wrapping the glued wire group on the outer surface of the main conductor wrapped with the first insulation layer and gluing to fix the wire group;
s3: after step S2 is completed, applying glue to the outer surface of the fixed lead group and the surface of the wear-resistant waterproof cloth to be attached to the outer surface of the lead group, and wrapping the wear-resistant waterproof cloth on the outer surface of the lead group, wherein the number of the wrapping layers is at least two;
s4: after step S3 is completed, wrapping a wear-resistant rubber layer outside the solid waterproof cloth or forming and wrapping a wear-resistant rubber layer;
the glue in the above steps can be QIS-5708 silica gel bonded metal plastic glue which is resistant to high temperature of 300 ℃; CL-24/26AB glue, modified epoxy structural glue with high temperature resistance higher than 120 ℃ or other glue selected according to actual requirements can also be selected.
The invention has the following beneficial effects:
1. according to the invention, the wear-resistant rubber layer with wear resistance and tear resistance can be produced by changing the component proportion and the production mode of the wear-resistant rubber layer material of the environment-friendly wear-resistant cable, the interior of the environment-friendly wear-resistant cable can be fully protected, meanwhile, a plurality of additives are added into the wear-resistant rubber layer, the structure of the wear-resistant rubber layer is more stable, and the heat resistance, the Izod notch impact strength, the combustion resistance, the antistatic capability and the antibacterial capability are all obviously improved.
2. The invention can enhance the fusion of various materials by mixing and granulating partial materials of the wear-resistant rubber layer and banburying the materials in the internal mixer, and simultaneously can reduce the oxidation of the mixed materials and the generation of bubbles by vacuumizing the internal mixer, wherein, the chloroprene rubber is used as a vulcanization accelerator, the zinc oxide is used as an activator, the sulfur is used as a vulcanizing agent, and the chloroprene rubber, the polyvinyl chloride resin and the natural rubber are compounded for vulcanization, so that the generated vulcanized rubber has better scorch resistance and storage safety, can ensure faster vulcanization speed and flat vulcanization, and also improves the overall wear resistance, aging resistance and compression permanent deformation performance of the wear-resistant rubber layer and the self-repairing capability of scratches on the surface of the wear-resistant rubber layer.
3. According to the environment-friendly wear-resistant cable, the reversible thermal-change material is coated on the surface of the wear-resistant rubber layer, so that the surface of the environment-friendly wear-resistant cable can be subjected to color change when the temperature rises to a high level, and the environment-friendly wear-resistant cable can be found by people in time to be cooled, so that the cable is effectively protected, and the service life of the cable is prolonged.
4. According to the environment-friendly wear-resistant cable, the slip ring formed by the two semicircular blocks is arranged, so that the outer surface of the environment-friendly wear-resistant cable can be fixed and strengthened, the environment-friendly wear-resistant cable can be blocked when being dragged to touch a sharp object and be torn, and the environment-friendly wear-resistant cable is prevented from being torn continuously; because of the external diameter of sliding ring is greater than the external diameter on wear-resisting rubber layer, when dragging environment-friendly wear-resisting cable, the sliding ring can reduce the wearing and tearing situation on wear-resisting rubber layer and ground, is favorable to improving environment-friendly wear-resisting cable's life.
5. According to the environment-friendly wear-resistant cable, the plurality of auxiliary conductors in the cable are wrapped by the second insulating layer to form the conductor group, and the conductor group is wound on the main conductor, so that the plurality of auxiliary conductors can be sequentially arranged without disorder, and the problem that the conductors are difficult to distinguish and connect when the number of the conductors in the cable is large is solved.
6. Through the research to various performances of cable, provide more convenience to the life cycle of cable, the upgrading of product, the later stage maintenance.
Drawings
FIG. 1 is a graph of an electrical heating accelerated aging test of a cable according to the present invention;
FIG. 2 is a schematic view of the general structure of the environment-friendly abrasion-resistant cable of the present invention;
FIG. 3 is one embodiment of a cross-sectional view taken about A-A of FIG. 2;
FIG. 4 is another embodiment of a cross-sectional view taken about A-A of FIG. 3;
FIG. 5 is a schematic view of the main conductor configuration of the present invention having a medial surface coated with insulation layer number one;
FIG. 6 is a schematic diagram of a secondary conductor structure of the present invention having a second insulating layer wrapped in the middle surface;
FIG. 7 is a schematic view of the slip ring structure of the present invention;
in the figure: the cable comprises a main conductor 1, a first insulating layer 11, a conductor group 2, a second insulating layer 22, an auxiliary conductor 21, a second insulating layer 22, a conductor group 2, waterproof cloth 3, a wear-resistant rubber layer 4, a slip ring 5, a semicircular block 51 and a rubber block 23.
Detailed Description
An environment-friendly abrasion-resistant cable according to the present invention will be described below with reference to fig. 1 to 7.
As shown in fig. 1 to 7, the environment-friendly wear-resistant cable of the present invention comprises a wear-resistant rubber layer 4, wherein the wear-resistant rubber layer 4 comprises the following materials by weight:
40-50 parts of hydrogenated nitrile rubber, 20-30 parts of polyvinyl chloride resin, 10-18 parts of natural rubber, 12-20 parts of ethylene-octene copolymer, 5-10 parts of modified PP (polypropylene), 5-13 parts of silane coupling agent, 0.5-1 part of neoprene, 1-2 parts of sulfur, 2-5 parts of zinc oxide, 2-4 parts of magnesium oxide, 2.5-4 parts of magnesium hydroxide inorganic flame retardant, 1-2 parts of antimony trioxide, 10-20 parts of carbon microsphere, 5-10 parts of cast stone powder, 5-15 parts of nano carbon black, 15-20 parts of nano argil, 1-2 parts of CPE (chlorinated polyethylene) special stabilizer, 5-7 parts of trioctyl trimellitate, 0.5-1.5 parts of paraffin, 1.5-3 parts of stearic acid and 1-5 parts of pressure-sensitive microcapsule; 1-5 parts of nano silicon dioxide particles.
The surface of the wear-resistant rubber layer 4 is coated with a reversible thermal change material, and the temperature sensing range of the reversible thermal change material is 60-130 ℃. When the environment-friendly wear-resistant cable cooling device works, the surface of the environment-friendly wear-resistant cable is permeated or coated with the reversible thermal-change material with the temperature sensing range of 60-130 ℃, so that the color of the surface of the environment-friendly wear-resistant cable is changed when the surface heating temperature of the environment-friendly wear-resistant cable reaches the temperature sensing range, people can judge the temperature of the environment-friendly wear-resistant cable through visual observation, the environment-friendly wear-resistant cable can be cooled and protected artificially, ETCD polydiacetylene changes color at 115 ℃, CoCl2·2C6H12·10H2The color of the environment-friendly wear-resistant cable is changed at 75 degrees, the real-time temperature of the environment-friendly wear-resistant cable can be judged according to the color change of the outer surface of the environment-friendly wear-resistant cable at different stages, and the environment-friendly wear-resistant cable can be artificially cooled and protected; wherein, CoCl2·2C6H12·10H2The reaction formula for O discoloring at 75 ° is:
Figure BDA0002205310670000071
the pressure-sensitive microcapsule contains a modified PP material with Izod notched impact strength of more than or equal to 120J/m. The integral Izod notch impact strength and the fracture elongation of the wear-resistant rubber layer 4 can be effectively improved by the modified PP material with the grade of KHPP-T223.
The wear-resistant rubber layer 4 also comprises 1-2 parts of calcium-zinc stabilizer and 2-3 parts of dodecyl dimethyl betaine according to parts by weight.
The concrete embodiment of the proportion and the production process steps of the wear-resistant rubber layer 4 is as follows:
in example 1, the wear-resistant rubber layer 4 comprises the following materials in parts by weight:
40 parts of hydrogenated nitrile rubber, 20 parts of polyvinyl chloride resin, 10 parts of natural rubber, 12 parts of ethylene-octene copolymer, 5 parts of silane coupling agent, 5 parts of modified PP (polypropylene), 0.5 part of neoprene, 1 part of sulfur, 2 parts of zinc oxide, 2 parts of magnesium oxide, 2.5 parts of magnesium hydroxide inorganic flame retardant, 1 part of antimony trioxide, 10 parts of carbon microsphere, 5 parts of cast stone powder, 5 parts of nano carbon black, 15 parts of nano argil, 1 part of CPE (chlorinated polyethylene) special stabilizer, 5 parts of trioctyl trimellitate, 0.5 part of paraffin, 1.5 parts of stearic acid, 1 part of pressure-sensitive microcapsule, 1 part of calcium-zinc stabilizer, 2 parts of dodecyl dimethyl betaine and 1 part of nano silicon dioxide particle.
The material used for the wear-resistant rubber layer 4 is produced by the following process steps:
the method comprises the following steps: blending and granulating hydrogenated nitrile rubber, polyvinyl chloride resin, natural rubber and ethylene-octene copolymer;
step two: adding a silane coupling agent, zinc oxide, magnesium oxide, a magnesium hydroxide inorganic flame retardant, antimony trioxide, carbon microspheres, cast stone powder, nano carbon black, nano argil, a CPE special stabilizer, trioctyl trimellitate, paraffin, stearic acid, nano silicon dioxide particles, pressure-sensitive microcapsules, a calcium-zinc stabilizer and dodecyl dimethyl betaine for mixing, wherein the rotating speed of an internal mixer is 42 revolutions per minute, the temperature of the initial feeding internal mixer is 42 ℃, the melted modified PP material is added when the temperature is raised to 62 ℃ at the speed of 1 ℃/min, the rotating speed of the internal mixer is 60 revolutions per minute, the temperature is raised to 75 ℃ at the speed of 5 ℃/min, the stirring is continued for 1min, the vacuum pumping is carried out, the negative pressure is maintained to be 0.5MPa, and then the sheet is taken out;
step three: placing the film in a film cooler to be cooled to below 40 ℃;
step four: putting the cooled rubber sheet into a vulcanizing machine, adding chloroprene rubber and sulfur, uniformly mixing, taking out the rubber sheet from the vulcanizing machine for 5min at the vulcanizing temperature of 120 ℃, cooling, and standing for 25h to obtain a high-strength wear-resistant rubber material;
step five: forming the obtained high-strength wear-resistant rubber material into a wear-resistant rubber layer 4, and coating a plurality of reversible thermal change materials on the surface, wherein the color change types of the materials are different, and the temperature sensing range of the reversible thermal change materials is 60-120 ℃; ETCD polydiacetylene discoloration at 115 ℃ CoCl2·2C6H12·10H2Changing color of O at 75 ℃;
example 2, the wear-resistant rubber layer 4 comprises the following materials in parts by weight:
45 parts of hydrogenated nitrile rubber, 25 parts of polyvinyl chloride resin, 14 parts of natural rubber, 16 parts of ethylene-octene copolymer, 9 parts of silane coupling agent, 8 parts of modified PP (polypropylene), 0.8 part of neoprene, 1.5 parts of sulfur, 3.5 parts of zinc oxide, 3 parts of magnesium hydroxide inorganic flame retardant, 1.5 parts of antimony trioxide, 15 parts of carbon microsphere, 7.5 parts of cast stone powder, 10 parts of nano carbon black, 17.5 parts of nano argil, 1.5 parts of CPE (chlorinated polyethylene) special stabilizer, 6 parts of trioctyl trimellitate, 1 part of paraffin, 2 parts of stearic acid, 2.5 parts of pressure-sensitive microcapsule, 1.5 parts of calcium-zinc stabilizer, 2.5 parts of dodecyl dimethyl betaine and 2.5 parts of nano silicon dioxide particle;
the material used for the wear-resistant rubber layer 4 is produced by the following process steps:
the method comprises the following steps: blending and granulating hydrogenated nitrile rubber, polyvinyl chloride resin, natural rubber and ethylene-octene copolymer;
step two: adding a silane coupling agent, zinc oxide, magnesium oxide, a magnesium hydroxide inorganic flame retardant, antimony trioxide, carbon microspheres, cast stone powder, nano carbon black, nano argil, a CPE special stabilizer, trioctyl trimellitate, paraffin, stearic acid, nano silicon dioxide particles, pressure-sensitive microcapsules, a calcium-zinc stabilizer and dodecyl dimethyl betaine for mixing, wherein the rotating speed of an internal mixer is 45 revolutions per minute, the temperature of the initial feeding internal mixer is 45 ℃, when the temperature is increased to 63 ℃ at the speed of 1 ℃/min, the melted modified PP material is added, the rotating speed of the internal mixer is 65 revolutions per minute, the temperature is increased to 78 ℃ at the speed of 5 ℃/min, the stirring is continued for 1.5min, the vacuum pumping is carried out, the negative pressure is maintained to be 0.8MPa, and then the sheet is taken out;
step three: placing the film in a film cooler to be cooled to below 40 ℃;
step four: putting the cooled rubber sheet into a vulcanizing machine, adding chloroprene rubber and sulfur, uniformly mixing, wherein the vulcanizing time is 5.5min, the vulcanizing temperature is 130 ℃, discharging the rubber sheet, cooling, and standing for 28h to obtain a high-strength wear-resistant rubber material;
step five: forming the obtained high-strength wear-resistant rubber material into a wear-resistant rubber layer 4, and coating a plurality of reversible thermal change materials on the surface, wherein the color change types of the materials are different, and the temperature sensing range of the reversible thermal change materials is 79-100 ℃;
example 3, the wear-resistant rubber layer 4 comprises the following materials in parts by weight:
50 parts of hydrogenated nitrile rubber, 30 parts of polyvinyl chloride resin, 18 parts of natural rubber, 20 parts of ethylene-octene copolymer, 13 parts of silane coupling agent, 10 parts of modified PP (polypropylene), 1 part of neoprene, 2 parts of sulfur, 5 parts of zinc oxide, 4 parts of magnesium hydroxide inorganic flame retardant, 2 parts of antimonous oxide, 20 parts of carbon microspheres, 10 parts of cast stone powder, 15 parts of nano carbon black, 20 parts of nano argil, 2 parts of CPE (chlorinated polyethylene) special stabilizer, 7 parts of trioctyl trimellitate, 1.5 parts of paraffin, 3 parts of stearic acid, 5 parts of pressure-sensitive microcapsules, 2 parts of calcium-zinc stabilizer, 3 parts of dodecyl dimethyl betaine and 5 parts of nano silicon dioxide particles;
the material used for the wear-resistant rubber layer 4 is produced by the following process steps:
the method comprises the following steps: blending and granulating hydrogenated nitrile rubber, polyvinyl chloride resin, natural rubber and ethylene-octene copolymer;
step two: adding a silane coupling agent, zinc oxide, magnesium oxide, a magnesium hydroxide inorganic flame retardant, antimony trioxide, carbon microspheres, cast stone powder, nano carbon black, nano argil, a CPE special stabilizer, trioctyl trimellitate, paraffin, stearic acid, nano silicon dioxide particles, pressure-sensitive microcapsules, a calcium-zinc stabilizer and dodecyl dimethyl betaine for mixing, wherein the rotating speed of an internal mixer is 50 revolutions per minute, the temperature of the initial feeding internal mixer is 50 ℃, the melted modified PP material is added when the temperature is raised to 65 ℃ at the speed of 1 ℃/min, the rotating speed of the internal mixer is 70 revolutions per minute, the temperature is raised to 80 ℃ at the speed of 5 ℃/min, the stirring is continued for 2min, the vacuum pumping is carried out, the negative pressure is maintained at 1MPa, and then the sheet is taken out;
step three: placing the film in a film cooler to be cooled to below 40 ℃;
step four: putting the cooled rubber sheet into a vulcanizing machine, adding chloroprene rubber and sulfur, uniformly mixing, taking out the rubber sheet from the vulcanizing machine for 6min at the vulcanizing temperature of 135 ℃, cooling, and standing for 30h to obtain a high-strength wear-resistant rubber material;
step five: forming the obtained high-strength wear-resistant rubber material into a wear-resistant rubber layer 4, and coating a plurality of reversible thermal change materials on the surface, wherein the color change types of the materials are different, and the temperature sensing range of the reversible thermal change materials is 99-130 ℃;
step six: after the wear-resistant rubber material is coated with the reversible thermal change material, the wear-resistant rubber material is put into 5210 matte environment-friendly lotion for soaking, and is heated to 45-50 ℃ and then is kept for 10 minutes, so that the stain resistance of the wear-resistant rubber material is improved;
the production and preparation of the material used for the wear-resistant rubber layer 4 are carried out by taking hydrogenated nitrile rubber as a main material and taking polyvinyl chloride resin and natural rubber as auxiliary materials, so that the product has higher wear resistance and tear resistance, and has good adhesion and aging resistance, wherein the tensile strength of the hydrogenated nitrile rubber is more than 30MPa, the tensile strength of partially improved hydrogenated nitrile rubber is more than 60MPa, and the service life of the hydrogenated nitrile rubber at the temperature of below 120 ℃ is ten thousand hours, so that the wear-resistant rubber layer 4 can have basic strength on the whole; the polyvinyl chloride resin has the functions of enhancing the heat resistance, toughness and ductility of the wear-resistant rubber layer 4, so that the main characteristics of the wear-resistant rubber layer 4 are determined; the ethylene-octene copolymer is used as a toughening agent, so that the toughness of the product is improved, and the wear resistance and tear strength of the product are improved; the neoprene is taken as a vulcanization accelerator, the zinc oxide is taken as an activator, and the sulfur is taken as a vulcanizing agent; the hydrogenated nitrile rubber, the polyvinyl chloride resin and the natural rubber are compounded and vulcanized, so that the generated vulcanized rubber has better scorch resistance and storage safety, can ensure higher vulcanization speed and flat vulcanization property, has better comprehensive physical and mechanical properties, and also improves the wear resistance, the aging resistance and the compression permanent deformation performance; magnesium oxide, zinc oxide, antimony trioxide, carbon microspheres, nano carbon black, nano argil, cast stone powder, modified kaolin and nano silicon dioxide particles are added as reinforcing agents, stearic acid, trioctyl trimellitate and paraffin are used as auxiliary materials, compatibility of the main material and the reinforcing agents is improved, wear resistance, tear resistance and stability of products are improved, strength and hardness of the products are improved, and cost of the products is reduced; the modified PP is mainly used for improving the Izod notch impact strength which is 40J/m, and the magnesium oxide, the antimony trioxide and the magnesium hydroxide inorganic flame retardant are matched to form a flame retardant system of the product, so that the heat-resistant flame retardant property of the product is greatly improved; self-restoring force is enhanced by adding the pressure-sensitive microcapsules; the calcium zinc stabilizer is an environment-friendly stabilizer and can improve the thermal stability, the light stability, the transparency and the tinting strength of the wear-resistant rubber layer 4; the dodecyl dimethyl betaine has antistatic, antibacterial and disinfecting properties, so that the overall performance of the wear-resistant rubber layer 4 can be improved;
an environment-friendly wear-resistant cable further comprises a main conductor 1 with a first insulating layer 11 wrapped on the surface, auxiliary conductors 21 with a second insulating layer 22 wrapped on the surface, and flat conductor groups 2 which are arranged between the adjacent auxiliary conductors 21 in parallel and connected into a whole through the second insulating layer 22; the section of the first insulating layer 11 is in a hollow circular ring shape, a concave part for press buckling connection is arranged on one edge of the first insulating layer 11, and the concave part is positioned on the inner side of the first insulating layer 11; the outer side surface of the second insulating layer 22 on one side surface of the lead group 2 is provided with a convex part for press buckling connection, and the convex part is matched with the concave part of the first insulating layer 11; the lead group 2 is annularly wrapped outside the main conductor 1 and is fixed by glue; the outer side of the fixed lead group 2 is wrapped with a plurality of layers of wear-resistant waterproof cloth 3 and is fixed by gluing; the wear-resistant rubber layer 4 is used for wrapping the solid waterproof cloth 3; the diameter of the main conductor 1 wrapped with the first insulating layer 11 is larger than the thickness of the conductor group 2; an isolation layer and a shielding layer are sequentially arranged between the main conductor 1 and the first insulating layer 11 and between the auxiliary conductor 21 and the second insulating layer 22. When the cable winding machine works, the outermost wear-resistant rubber layer 4 plays a role in wear-resistant protection, requirements such as electrification, communication and grounding are met through the main conductor 1 and the auxiliary conductor 21, the wear-resistant rubber layer 4 can be integrally formed with the main conductor 1, the conductor group 2 and the wear-resistant waterproof cloth 3, the main conductor 1, the conductor group 2 and the wear-resistant waterproof cloth 3 are wrapped with the first insulating layer 11 through a cable extruder, the main conductor 1, the conductor group 2, the wear-resistant waterproof cloth 3 and other components are wrapped with the planar wear-resistant rubber layer 4, and the side face of the wear-resistant rubber layer 4 is softened by a red metal sheet to form the wear-resistant rubber layer 4 into a ring shape; wherein, the main conductor 1 wrapped with the first insulating layer 11 and the auxiliary conductor 21 wrapped with the second insulating layer 22 can be as follows: n, the number of the conductors is randomly combined, the flat conductor group 2 can be made into a conductor group 2 with two groups of conductors 21, a conductor group 2 with three groups of conductors 21, a conductor group 2 with four groups of conductors 21 and a conductor group 2 with more than four groups of conductors 21 according to actual requirements, and then the conductor groups are formed by winding, bonding and forming, so that the width of the integral environment-friendly wear-resistant cable is favorably reduced, the integral wiring and installation of the environment-friendly wear-resistant cable are facilitated, and meanwhile, when the environment-friendly wear-resistant cable with more than ten conductors 21 is required, the winding of the conductor group 2 is carried out, and disorder is not easy to generate; the glue related to the scheme can be water-proof and aging-resistant QIS-5708 silica gel-bonded metal plastic glue which is resistant to high temperature of 300 ℃; CL-24/26AB glue, modified epoxy structural glue with high temperature resistance of over 120 ℃ or other glue selected according to actual requirements can be selected; when the wear-resistant rubber layer 4 is seriously worn, the wear-resistant rubber layer 4 can be removed through melting the glue on the environment-friendly wear-resistant cable, and the new wear-resistant rubber layer 4 is replaced, when the number of the auxiliary conductors 21 needs to be increased newly on the environment-friendly wear-resistant cable, the environment-friendly wear-resistant cable can be wound through connection and supplement of the second concave parts and the convex parts on the conductor group 2 according to actual requirements, so that the environment-friendly wear-resistant cable can be conveniently replaced when the main conductor 1 and the auxiliary conductors 21 in the environment-friendly wear-resistant cable need to be replaced, the environment-friendly wear-resistant cable is not scrapped integrally, the environment protection of the environment-friendly wear-resistant cable is realized, and meanwhile, the wear-resistant rubber layer 4 has the effects of wear resistance and tear resistance, and the overall environmental protection and wear resistance of the environment-resistant cable are improved; thirdly, if the lead group 2 and the main conductor 1 wrapped with the first insulating layer 11 need to be conveniently disassembled, the lead group 2 and the main conductor 1 wrapped with the first insulating layer 11 can be selected according to actual requirements without being glued during winding; the environment-friendly wear-resistant cable is mainly used for short distance within one kilometer, and is particularly used for indoor and outdoor short distance line connection.
Slip rings 5 are sequentially arranged on the outer surface of the wear-resistant rubber layer 4 at intervals; the slip ring 5 comprises two semicircular blocks 51 which can be mutually inserted, and the edges of two ends of each semicircular block 51 are tangent to the outer surface of the wear-resistant rubber layer 4; and the inner surfaces of the two semicircular blocks 51 are provided with elastic pieces; the elastic sheet is made of polyurethane rubber or polyethylene fiber material; the inner diameter of the slip ring 5 with the elastic sheet is matched with the outer diameter of the wear-resistant rubber layer 4 of the environment-friendly wear-resistant cable; when in use, the two semicircular blocks 51 are clamped on the outer surface of the wear-resistant rubber layer 4 of the environment-friendly wear-resistant cable and are pressed and buckled with each other, and the gluing is firm when necessary; the slip ring 5 formed by the two semicircular blocks 51 can fix and reinforce the outer surface of the environment-friendly wear-resistant cable, and can block the environment-friendly wear-resistant cable when the environment-friendly wear-resistant cable is pulled to touch a sharp object and is torn, so that the environment-friendly wear-resistant cable is prevented from being torn continuously, and on the other hand, because the outer diameter of the slip ring 5 is larger than that of the wear-resistant rubber layer 4, when the environment-friendly wear-resistant cable is pulled, the slip ring 5 can reduce the abrasion condition between the wear-resistant rubber layer 4 and the ground, so that the service life of the environment-friendly wear-resistant cable is prolonged, and the edges of the two ends of the semicircular blocks 51 are tangent to the outer surface of the wear-resistant rubber layer 4, so that the environment-friendly wear-resistant cable can avoid obstacles, and the environment-friendly wear-resistant cable can be pulled and wound more conveniently; the slip ring 5 is made of metal with good hardness or rigid material with good wear resistance and hardness.
The outer side surface of the second insulating layer 22 on the other side surface of the wire group 2 is provided with a second concave part for press-fit connection, and the convex part on one wire group 2 can be press-fit connected with the second concave part of the wire group or the second concave part on the other wire group 2. The during operation, through set up the second concave part that is used for pressing the lock to connect in a side at wire group 2, set up the convex part that is used for pressing the lock to connect in another side of wire group 2, can realize the combination of a plurality of wire groups 2, can replace when the user demand changes, increase or reduce the quantity of wire group 2 and the quantity of auxiliary conductor 21, be convenient for the roll-up of wire group 2 and reduce the holistic width of environment-friendly wear-resisting cable, make things convenient for the holistic wiring installation of environment-friendly wear-resisting cable, especially be fit for the cable use of more auxiliary conductor 21, especially need the cable of five or more than ten auxiliary conductor 21, go on through the form that wire group 2 convoluteed, and exert different colours to a plurality of auxiliary conductor 21 surfaces and distinguish, and then make a plurality of auxiliary conductor 21 be difficult for producing the confusion, the problem of knoing appears.
The secondary conductors 21 in the lead group 2 are at least two groups, and the secondary conductors 21 in each group are separated by a second insulating layer 22. When the conductor is in work, the main conductor 1 and the auxiliary conductors 21 can be single metal wire conductors such as composite hinged conductors, bundle hinged conductors, common hinged conductors, special-shaped conductor sectors, tile shapes and the like, and each group of auxiliary conductors 21 are separated by a second insulating layer 22 to form a plurality of auxiliary conductors 21.
The lead group 2 also comprises a rectangular rubber block 23 with a right-angled triangle-shaped section; the axial length of rubber block 23 along auxiliary conductor 21 is the same with wire group 2 length, and one of them right angle limit of rubber block 23 is the same with wire group 2 thickness, and this right angle edge of rubber block 23 be provided with wire group 2 on the second convex part that the structure is the same, rubber block 23 and wire group 2 parcel are in leading the body 1 outside together and make the parcel have the cross-section after the leading body 1, wire group 2 and the rubber block 23 parcel shaping of an insulating layer 11 tend to circularly.
A production method of an environment-friendly wear-resistant cable is used for producing the environment-friendly wear-resistant cable and comprises the following production steps:
s1: the main conductor 1 wrapped with the first insulating layer 11 is connected with the flat conductor group 2 in a pressing and buckling way through a concave-convex part;
if the number of the auxiliary conductors 21 in the wire group 2 is insufficient, the second concave part on the wire group 2 connected with the main conductor 1 is connected with the convex part on the other wire group 2 in a pressing and buckling way so as to achieve the required number of the auxiliary conductors 21, and whether the rubber block 23 with the convex part is connected on the concave part of the wire group 2 at the tail end in a pressing and buckling way is selected according to actual requirements;
s2: after step S1, applying glue to the surface of the flat wire group 2 contacting the first insulation layer 11, and tightly wrapping the glued wire group 2 on the outer surface of the main conductor 1 wrapped with the first insulation layer 11 and gluing and fixing;
s3: after step S2 is completed, applying glue to the outer surface of the fixed lead group 2 and the surface of the wear-resistant waterproof cloth 3 to be attached to the outer surface of the lead group 2, and wrapping the wear-resistant waterproof cloth 3 on the outer surface of the lead group 2, wherein the number of the wrapped layers is at least two;
s4: after step S3 is completed, wrapping the wear-resistant rubber layer 4 outside the solid tarpaulin 3 or forming and wrapping the wear-resistant rubber layer 4;
the glue in the above steps can be QIS-5708 silica gel bonded metal plastic glue which is resistant to high temperature of 300 ℃; CL-24/26AB glue, modified epoxy structural glue with high temperature resistance of over 120 ℃ or other glue selected according to actual requirements can be selected;
tear resistance test of environment-friendly wear-resistant cable:
preparation of the experiment: the cable breaking device comprises eight-meter-long environment-friendly wear-resistant cables and a plurality of common cables, one box body filled with broken stones, one heavy block and a plurality of same spring tensioners, wherein the two ends of the box body are provided with holes for the cables to pass through;
purpose of the experiment: simulating the situation that the cable is scratched when being pulled on the ground so as to detect the tear resistance of the cable;
the experimental steps are as follows: one end of the cable penetrates through the box body filled with the crushed stone, the crushed stone is flush with the hole, the lower surface of the cable is completely contacted with the crushed stone, the cable is pulled through the spring scale, and the tension of the comparison group is kept the same; when the experiment of part of common cables is compared with that of environment-friendly wear-resistant cables, the weight is added, the weight is used for pressing the cables, the friction force between the cables and broken stones is increased, and the tension of the spring chest expander is changed for comparison, so that the cables can be manually pulled or pulled by using a traction device; and the scratch depth of the cable is measured by the surface scratch depth measuring instrument, and the following experimental data are obtained:
Figure BDA0002205310670000131
summary of the experiments: compared with the common cable, the wear-resistant rubber layer of the environment-friendly wear-resistant cable has better tear resistance under the same tension, and can effectively prevent the surface layer of the cable from being continuously torn and scratched, and particularly, after the weight blocks are additionally arranged on the common cable and the environment-friendly wear-resistant cable and are pressed down, the tear resistance and the scratch resistance of the environment-friendly wear-resistant cable are more obviously distinguished; therefore, compared with the common cable, the environment-friendly wear-resistant cable has the advantage that the comprehensive material performance is obviously improved.
And (3) testing the wear resistance of the environment-friendly wear-resistant cable: selecting wear-resistant rubber layers of the environment-friendly wear-resistant cable as experimental groups, wherein the experimental groups comprise three groups; common cables are used as a control group, and the number of the common cables is three; pressing the material into a 3 mm thin sheet, weighing the thin sheet, accurately measuring the mass to 0.1 mg, fixing the thin sheet on a wear-resistant tester, scraping the thin sheet for the same times under the same condition, taking down the thin sheet, weighing the thin sheet, and taking the worn quality as a parameter for evaluating the wear resistance of the material, wherein the specific experimental data are as follows:
Figure BDA0002205310670000141
summary of the experiments: can know through the wearability test of the wear-resisting cable of environment-friendly, the wearability of the more ordinary cable of the wear-resisting cable of environment-friendly is better.
Electric heating accelerated aging experiment of the cable:
the method is characterized in that the environment around the cable is simulated by an aging box special for the cable electric heating accelerated aging experiment, the temperature in the aging box fluctuates within the range of +/-1 ℃ during the experiment, and a fan is arranged in the box to provide flowing air for the box; preparation of experimental samples: stripping off the outer sheath, the waterproof cloth and the glue of the cable to expose the inner insulating layer of the cable, sticking the coupling temperature sensor at the stripping position of the outer sheath of the cable, fixing the coupling temperature sensor by using an insulating adhesive tape to receive a temperature change signal of the insulating layer of the cable, and collecting the temperature change condition of the insulating layer of the cable through a signal conversion device, a signal transmission optical fiber and a computer; loading current-carrying capacities with different amplitudes according to rated current in the experimental process;
wherein, the A, C cables are cables which are put in an aging oven with the temperature of 100 ℃ in advance and are electrified for the same days so as to simulate common cables and environment-friendly wear-resistant cables after being used for a period of time;
according to the graph of the attached figure 1 of the specification, the experimental result is analyzed: through the experiment, the temperature rise data of the cable running for a long time can be obtained in a short time; the heat productivity of the cable used for a period of time is much larger than that of a new cable, and the heat productivity of the cable is increased along with the increase of the current-carrying capacity of the cable; the heat productivity of the cable is related to the aging speed of the cable, and the aging speed of the cable is higher when the heat productivity of the cable is higher, so that the aging resistance of the environment-friendly wear-resistant cable is better than that of a common cable, and the aging resistance gap is gradually expanded along with the lapse of time; meanwhile, the rapid temperature rise speed reflects the insulation performance of the cable, and the insulation performance of the environment-friendly wear-resistant cable is better than that of a common cable.
While one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.

Claims (5)

1. The utility model provides an environment-friendly wear-resisting cable, includes wear-resisting rubber layer (4), its characterized in that: the cable comprises a main conductor (1) with a first insulating layer (11) wrapped on the surface, secondary conductors (21) with a second insulating layer (22) wrapped on the surface, and a flat lead group (2) formed by parallelly arranging adjacent secondary conductors (21) and connecting the adjacent secondary conductors into a whole through the second insulating layer (22); the section of the first insulating layer (11) is in a hollow circular ring shape, a concave part for pressing, buckling and connecting is arranged at one edge of the first insulating layer (11), and the concave part is positioned on the inner side of the first insulating layer (11); the outer side surface of the second insulating layer (22) on one side surface of the lead group (2) is provided with a convex part for pressing, buckling and connecting, and the convex part is matched with the concave part of the first insulating layer (11); the lead group (2) is annularly wrapped outside the main conductor (1) and is fixed by glue; the outer side of the lead group (2) after being shaped is wrapped with a plurality of layers of wear-resistant waterproof cloth (3) and is shaped by gluing; the wear-resistant rubber layer (4) is used for wrapping the solid waterproof cloth (3); the diameter of the main conductor (1) wrapped with the first insulating layer (11) is larger than the thickness of the lead group (2);
slip rings (5) are sequentially arranged on the outer surface of the wear-resistant rubber layer (4) at intervals; the slip ring (5) comprises two semicircular blocks (51) which can be mutually inserted, and the edges of the two ends of each semicircular block (51) are tangent to the outer surface of the wear-resistant rubber layer (4);
a second concave part for press buckling connection is arranged on the outer side surface of the second insulating layer (22) on the other side surface of the wire group (2), and the convex part on one wire group (2) can be connected with the second concave part of the wire group or the second concave part on the other wire group (2) in a press buckling manner;
at least two groups of auxiliary conductors (21) are arranged in the lead group (2), and the auxiliary conductors (21) in each group are separated by a second insulating layer (22);
the lead group (2) also comprises a rectangular rubber block (23) with a right-angled triangle-shaped section; the length of the rubber block (23) in the axial direction of the auxiliary conductor (21) is the same as that of the lead group (2), one right-angle edge of the rubber block (23) is as thick as the lead group (2), a second convex part with the same structure as the lead group (2) is arranged on the right-angle edge of the rubber block (23), and the rubber block (23) and the lead group (2) are wrapped on the outer side of the main conductor (1) together to enable the cross section of the main conductor (1) wrapped with the first insulating layer (11), the cross section of the lead group (2) and the cross section of the rubber block (23) after being wrapped and molded tend to be circular;
the wear-resistant rubber layer (4) comprises the following materials in parts by weight:
40-50 parts of hydrogenated nitrile rubber, 20-30 parts of polyvinyl chloride resin, 10-18 parts of natural rubber, 12-20 parts of ethylene-octene copolymer, 5-10 parts of modified PP (polypropylene), 5-13 parts of silane coupling agent, 0.5-1 part of neoprene, 1-2 parts of sulfur, 2-5 parts of zinc oxide, 2-4 parts of magnesium oxide, 2.5-4 parts of magnesium hydroxide inorganic flame retardant, 1-2 parts of antimony trioxide, 10-20 parts of carbon microsphere, 5-10 parts of cast stone powder, 5-15 parts of nano carbon black, 15-20 parts of nano argil, 1-2 parts of CPE (chlorinated polyethylene) special stabilizer, 5-7 parts of trioctyl trimellitate, 0.5-1.5 parts of paraffin, 1.5-3 parts of stearic acid and 1-5 parts of pressure-sensitive microcapsule; 1-5 parts of nano silicon dioxide particles.
2. The environment-friendly abrasion-resistant cable according to claim 1, wherein: the surface of the wear-resistant rubber layer (4) is coated with a reversible thermotropic material; the temperature sensing range of the reversible thermal change material is 60-130 ℃.
3. The environment-friendly abrasion-resistant cable according to claim 1, wherein: the pressure-sensitive microcapsule contains a modified PP material with Izod notched impact strength of more than or equal to 120J/m.
4. The environment-friendly abrasion-resistant cable according to claim 1, wherein: the wear-resistant rubber layer (4) also comprises 1-2 parts of calcium-zinc stabilizer and 2-3 parts of dodecyl dimethyl betaine according to parts by weight.
5. The production method of the environment-friendly wear-resistant cable is characterized by comprising the following steps: the method for producing the environment-friendly wear-resistant cable as claimed in any one of claims 1 to 4, comprises the following production steps: s1: pressing and buckling the main conductor (1) wrapped with the first insulating layer (11) and the flat conductor group (2) through the concave-convex part; if the number of the auxiliary conductors (21) in the lead group (2) is not enough, the second concave part on the lead group (2) connected with the main conductor (1) is connected with the convex part on the other lead group (2) in a pressing and buckling way, so that the required number of the auxiliary conductors (21) is achieved; s2: after step S1 is completed, glue is applied to a surface of the flat lead group (2) contacting the first insulation layer (11), and the glued lead group (2) is tightly wrapped on the outer surface of the main conductor (1) wrapped with the first insulation layer (11) and glued and fixed; s3: after the step S2 is finished, gluing the outer surface of the fixed lead group (2) and the surface of the wear-resistant waterproof cloth (3) to be attached to the outer surface of the lead group (2), and wrapping the wear-resistant waterproof cloth (3) on the outer surface of the lead group (2) by at least two layers; s4: and after the step S3 is finished, wrapping the wear-resistant rubber layer (4) outside the solid waterproof cloth (3) or forming and wrapping the wear-resistant rubber layer (4).
CN201910879085.8A 2019-09-18 2019-09-18 Environment-friendly wear-resistant cable Active CN110591190B (en)

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CN112900648A (en) * 2021-01-26 2021-06-04 张冠润 Waterproof construction method for building engineering
CN116913582B (en) * 2023-08-03 2024-02-23 广州恒星传导科技股份有限公司 Cable applied to brake pad abrasion monitoring

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CN105985552A (en) * 2016-03-18 2016-10-05 晶锋集团股份有限公司 Lanthanum-oxide-modified rubber cable material
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