CN109994273B - Flame-retardant and fire-resistant wire and cable material and preparation method thereof - Google Patents
Flame-retardant and fire-resistant wire and cable material and preparation method thereof Download PDFInfo
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- CN109994273B CN109994273B CN201910244330.8A CN201910244330A CN109994273B CN 109994273 B CN109994273 B CN 109994273B CN 201910244330 A CN201910244330 A CN 201910244330A CN 109994273 B CN109994273 B CN 109994273B
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- 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
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/28—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—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
- C08K2003/2224—Magnesium hydroxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
Abstract
The invention discloses a flame-retardant fire-resistant wire and cable material and a preparation method thereof, wherein the preparation method comprises the following steps: preparing a raw material A, preparing a raw material B, preparing a raw material C, preparing a raw material D, and finally preparing a raw material E; step two, packaging and processing: wrapping the raw material A on the surface of the cable, uniformly coating the raw material B on the surface of the insulating layer, wrapping the raw material C on the surface of the first bonding layer, uniformly coating the raw material D on the surface of the flame-retardant layer, and wrapping the raw material E on the surface of the second bonding layer; the invention relates to the technical field of wires and cables, and discloses a pressing forming method. According to the flame-retardant fire-resistant wire and cable material and the preparation method thereof, five different layers are directly processed, the flame-retardant material and the fire-resistant material are respectively added into the protective layer, flame retardance and fire resistance are realized according to a layered isolation mode, resources are reasonably utilized, the flame-retardant effect of the cable is guaranteed, the temperature required by cable combustion is increased, and the safety of the cable is guaranteed.
Description
Technical Field
The invention relates to the technical field of wires and cables, in particular to a flame-retardant and fire-resistant wire and cable material and a preparation method thereof.
Background
In the electric power transportation, can produce the heat, the temperature variation of external environment is mated again, the condition of burning will appear very easily in the cable, because the complicacy of circuit, in case the loss that can't estimate will appear in the burning, so people design fire-retardant cable and fire resisting cable and protect.
The principle of fire-resistant cables is different from that of flame-retardant cables: the halogen-containing cable flame-retardant principle is based on the flame-retardant effect of halogen, the halogen-free cable flame-retardant principle is based on the principle that the temperature is reduced by educing water to extinguish fire, the fire-resistant cable is based on the fire-resistant and heat-resistant characteristics of the mica material in the fire-resistant layer to ensure that the cable also works normally in case of fire, and the flame-retardant cable has the basic structure that: the insulating layer is made of flame-retardant materials; the sheath and the outer protective layer are made of flame-retardant materials; the wrapping tape and the filling are made of flame-retardant materials, and the flame-retardant layer of the flame-retardant cable is directly wrapped on the conducting wire by adopting a plurality of layers of mica tapes.
Generally, fire-resistant cables can replace fire-resistant cables, fire-resistant cables cannot replace fire-resistant cables, the difference results in simple cable classification, and in some environments between the use of fire-resistant cables and fire-resistant cables, fire-resistant cables have to be adopted for safety, so that the resources cannot be utilized more greatly, and troubles are brought to the use of users.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a flame-retardant and fire-resistant wire and cable material and a preparation method thereof, and solves the problems that the cable classification is simple, and in some environments between the use of a fire-resistant cable and a flame-retardant cable, the fire-resistant cable has to be adopted for safety, so that the resources can not be utilized more greatly, and troubles are brought to the use of users.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a fire-retardant fire-resistant wire and cable material, includes insulating layer, first bond line, fire-retardant layer, second bond line and high temperature resistant layer, insulating layer, first bond line, fire-retardant layer, second bond line and high temperature resistant layer wrap up from inside to outside in proper order, the insulating layer raw materials include according to part by weight: 50-80 parts of silicone rubber and 10-30 parts of composite fiber, wherein the first adhesive layer comprises the following raw materials in parts by weight: 2-5 parts of glass fiber, 1-2 parts of coupling agent and 40-60 parts of adhesive, wherein the flame-retardant layer comprises the following raw materials in parts by weight: 1-1.5 parts of magnesium hydroxide, 0.5-1.5 parts of aluminum hydroxide, 0.3-1 part of silicon dioxide, 2-3 parts of coupling agent and 120 parts of chloroprene rubber, wherein the second bonding layer comprises the following raw materials in parts by weight: 2-5 parts of polyester fiber, 1-2 parts of coupling agent and 40-60 parts of adhesive, wherein the high-temperature resistant layer comprises the following raw materials in parts by weight: 6-10 parts of anti-aging master batch, 4-8 parts of high-temperature resistant filler, 80-120 parts of butadiene rubber and 100-120 parts of nitrile rubber.
Preferably, the insulating layer comprises the following raw materials in parts by weight: 50 parts of silicone rubber and 10 parts of composite fiber, wherein the first adhesive layer comprises the following raw materials in parts by weight: 2 parts of glass fiber, 1 part of coupling agent and 40 parts of adhesive, wherein the flame-retardant layer comprises the following raw materials in parts by weight: 1 part of magnesium hydroxide, 0.5 part of aluminum hydroxide, 0.3 part of silicon dioxide, 2 parts of coupling agent and 100 parts of chloroprene rubber, wherein the second bonding layer comprises the following raw materials in parts by weight: 2 parts of polyester fiber, 1 part of coupling agent and 40 parts of adhesive, wherein the high-temperature resistant layer comprises the following raw materials in parts by weight: 10 parts of anti-aging master batch, 8 parts of high-temperature resistant filler, 80 parts of butadiene rubber and 120 parts of nitrile rubber.
Preferably, the insulating layer comprises the following raw materials in parts by weight: 80 parts of silicone rubber and 30 parts of composite fiber, wherein the first adhesive layer comprises the following raw materials in parts by weight: 5 parts of glass fiber, 2 parts of coupling agent and 60 parts of adhesive, wherein the flame-retardant layer comprises the following raw materials in parts by weight: 1.5 parts of magnesium hydroxide, 1.5 parts of aluminum hydroxide, 1 part of silicon dioxide, 3 parts of a coupling agent and 120 parts of chloroprene rubber, wherein the second bonding layer comprises the following raw materials in parts by weight: 5 parts of polyester fiber, 2 parts of coupling agent and 60 parts of adhesive, wherein the high-temperature resistant layer comprises the following raw materials in parts by weight: 6 parts of anti-aging master batch, 4 parts of high-temperature resistant filler, 120 parts of butadiene rubber and 100 parts of nitrile rubber.
Preferably, the first adhesive layer is made of hot melt adhesive, and the second adhesive layer is made of solvent adhesive.
Preferably, the silicone rubber is made of one or more of dimethyl silicone rubber, methyl vinyl silicone rubber, methyl phenyl vinyl silicone rubber and phenylene silicone rubber.
The invention also discloses a preparation method of the flame-retardant and fire-resistant wire and cable material, which specifically comprises the following steps:
step one, preparing raw materials: adding composite fibers into molten silicon rubber, stirring uniformly to obtain a raw material A, adding glass fibers and a coupling agent into an adhesive, stirring uniformly to obtain a raw material B, adding magnesium hydroxide, aluminum hydroxide, silicon dioxide and the coupling agent into molten chloroprene rubber, stirring uniformly to obtain a raw material C, adding polyester fibers and the coupling agent into the adhesive, stirring uniformly to obtain a raw material D, adding ageing-resistant master batches and a high-temperature-resistant filler into a molten butadiene rubber and nitrile rubber mixed solution, and stirring uniformly to obtain a raw material E;
step two, packaging and processing: pressing and molding the raw material A prepared in the step one, then wrapping the raw material A on the surface of a cable to form an insulating layer, then uniformly coating the raw material B on the surface of the insulating layer to form a first bonding layer, pressing and molding the raw material C, wrapping and extruding the raw material C on the surface of the first bonding layer to form a flame-retardant layer, then uniformly coating the raw material D on the surface of the flame-retardant layer to form a second bonding layer, finally pressing and molding the raw material E, wrapping and extruding the raw material E on the surface of the second bonding layer to form a high-temperature-resistant layer, and thus preparing a semi-finished;
step three, press forming: and C, tightly pressing the semi-finished product A prepared in the step II to obtain a finished product.
Preferably, the stirring device is used for stirring raw materials A, B, C and D, and comprises a stirring bin, a control unit and a stirring unit, wherein the stirring unit is arranged in the stirring bin and provides power for the stirring unit, the stirring bin is arranged in a split mode and comprises an upper semicircle, an annular waist ring and a lower semicircle, the annular waist ring is movably connected between the upper semicircle and the lower semicircle to jointly form a spherical shape, the control unit comprises a control motor I and a control motor II, the stirring unit comprises a stirring shaft I, a stirring shaft II and stirring blades, the stirring shaft I is movably connected on a diameter shaft of the annular waist ring, one end of the stirring shaft I is connected with a power output shaft of the control motor I, the control motor I is fixedly connected with the annular waist ring, one end of the stirring shaft II is vertically connected to the midpoint of the stirring shaft I, and the stirring shaft II is movably connected with the stirring shaft I through a bearing, the bearing is sleeved on the stirring shaft I, the other end of the stirring shaft II is movably connected with the upper semicircle, the upper semicircle is provided with a control motor II, the power output shaft of the control motor II is connected with the other end of the stirring shaft II, the stirring shaft I is provided with comb-tooth-shaped stirring blades, the shape of the free end of each stirring blade is matched with the radian of the lower semicircle, the bearing at the joint of the stirring shaft I and the stirring shaft II is provided with a middle stirring blade, the stirring shaft I is of a hollow structure, its cavity intracavity swing joint has the screw rod, and the screw rod passes through I drive of control motor, and each stirring leaf is all through first transmission shaft and I swing joint of (mixing) shaft, cup joints first transmission gear in the first transmission shaft, and first transmission gear and screw rod meshing transmission are equipped with the jar of placing and are equipped with 1 feed inlet at least that are used for storing the powder raw materials on the first semicircle in stirring storehouse, and the jar of placing passes through the pipe connection with the feed inlet.
Preferably, the stirring shaft I and the stirring shaft II are respectively provided with a telescopic structure, the telescopic structure comprises a plurality of control arms which are sequentially nested and can relatively extend and retract, and part of the control arms extend and retract relative to the previous control arm through a telescopic oil cylinder; the other control arms can extend and retract through a group of control zipper, an extending pulley, a pull-back cable and a pull-back pulley; the arm head and the arm tail of a control arm are respectively located to a set of pulley and the pull-back pulley of stretching out, and a preceding control arm, a back control arm that do not are connected to this control arm are equallyd divide to the both ends of the pull-back cable that correspond and control zip for pull-back and stretch out a back control arm of this control arm, just the internal perisporium department of this control arm afterbody is located to the pull-back pulley.
(III) advantageous effects
The invention provides a flame-retardant and fire-resistant wire and cable material and a preparation method thereof. The method has the following beneficial effects:
the flame-retardant fire-resistant wire and cable material and the preparation method thereof comprise the following steps: adding composite fibers into molten silicon rubber, stirring uniformly to obtain a raw material A, adding glass fibers and a coupling agent into an adhesive, stirring uniformly to obtain a raw material B, adding magnesium hydroxide, aluminum hydroxide, silicon dioxide and the coupling agent into molten chloroprene rubber, stirring uniformly to obtain a raw material C, adding polyester fibers and the coupling agent into the adhesive, stirring uniformly to obtain a raw material D, adding ageing-resistant master batches and a high-temperature-resistant filler into a molten butadiene rubber and nitrile rubber mixed solution, and stirring uniformly to obtain a raw material E; step two, packaging and processing: pressing and molding the raw material A prepared in the step one, then wrapping the raw material A on the surface of a cable to form an insulating layer, then uniformly coating the raw material B on the surface of the insulating layer to form a first bonding layer, pressing and molding the raw material C, wrapping and extruding the raw material C on the surface of the first bonding layer to form a flame-retardant layer, then uniformly coating the raw material D on the surface of the flame-retardant layer to form a second bonding layer, finally pressing and molding the raw material E, wrapping and extruding the raw material E on the surface of the second bonding layer to form a high-temperature-resistant layer, and thus preparing a semi-finished; step three, press forming: and (3) tightly pressing the semi-finished product A prepared in the step two to prepare a finished product, directly processing five different layers, respectively adding a flame-retardant material and a refractory material into the protective layer, performing flame retardance and fire resistance according to a layered isolation mode, reasonably utilizing resources, improving the temperature required by cable combustion while ensuring the flame-retardant effect of the cable, and guaranteeing the safety of the cable.
Drawings
FIG. 1 is a schematic cross-sectional view of a structure of the present invention;
FIG. 2 is a table of comparative experimental data according to the present invention;
FIG. 3 is a schematic view of a stirring device;
FIG. 4 is a schematic view of a retractor mechanism;
FIG. 5 is a schematic view of a first pullback pulley;
fig. 6 is a schematic view of a second pullback pulley.
In the figure, 1-insulating layer, 2-first bonding layer, 3-flame retardant layer, 4-second bonding layer, 5-high temperature resistant layer, 10-upper semicircle, 20-annular waist ring, 30-lower semicircle, 40-control motor I, 50-control motor II, 60-stirring shaft I, 70-stirring shaft II, 80-stirring blade, 90-placing tank, 100-feeding inlet, 110-first transmission shaft, 120-middle stirring blade.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the embodiment of the present invention provides three technical solutions: the flame-retardant fire-resistant wire and cable material and the preparation method thereof specifically comprise the following embodiments:
the first embodiment is as follows:
step one, preparing raw materials: adding 10 parts of composite fiber into 50 parts of molten silicon rubber, uniformly stirring to obtain a raw material A, adding 2 parts of glass fiber and 1 part of coupling agent into 40 parts of adhesive, uniformly stirring to obtain a raw material B, then adding 1 part of magnesium hydroxide, 0.5 part of aluminum hydroxide, 0.3 part of silicon dioxide and 2 parts of coupling agent into 100 parts of molten chloroprene rubber, uniformly stirring to obtain a raw material C, adding 2 parts of polyester fiber and 1 part of coupling agent into 40 parts of adhesive, uniformly stirring to obtain a raw material D, finally adding 10 parts of anti-aging master batch and 8 parts of high-temperature-resistant filler into a mixed solution of 80 parts of molten butadiene rubber and 120 parts of nitrile rubber, and uniformly stirring to obtain a raw material E;
step two, packaging and processing: pressing and molding the raw material A prepared in the step one, then wrapping the raw material A on the surface of a cable to form an insulating layer 1, then uniformly coating the raw material B on the surface of the insulating layer 1 to form a first bonding layer 2, then pressing and molding the raw material C, wrapping and extruding the raw material C on the surface of the first bonding layer 2 to form a flame-retardant layer 3, then uniformly coating the raw material D on the surface of the flame-retardant layer 3 to form a second bonding layer 4, finally pressing and molding the raw material E, wrapping and extruding the raw material E on the surface of the second bonding layer 4 to form a high-temperature-resistant layer 5, and thus preparing a semi-finished;
step three, press forming: and C, tightly pressing the semi-finished product A prepared in the step II to obtain a finished product.
Example two:
step one, preparing raw materials: adding 20 parts of composite fiber into 65 parts of molten silicon rubber, uniformly stirring to obtain a raw material A, adding 4 parts of glass fiber and 1.5 parts of coupling agent into 50 parts of adhesive, uniformly stirring to obtain a raw material B, then adding 1 part of magnesium hydroxide, 1 part of aluminum hydroxide, 0.8 part of silicon dioxide and 2.5 parts of coupling agent into 110 parts of molten chloroprene rubber, uniformly stirring to obtain a raw material C, adding 4 parts of polyester fiber and 1.5 parts of coupling agent into 50 parts of adhesive, uniformly stirring to obtain a raw material D, finally adding 8 parts of anti-aging master batch and 6 parts of high-temperature-resistant filler into 100 parts of molten butadiene rubber and 110 parts of nitrile rubber mixed solution, and uniformly stirring to obtain a raw material E;
step two, packaging and processing: pressing and molding the raw material A prepared in the step one, then wrapping the raw material A on the surface of a cable to form an insulating layer 1, then uniformly coating the raw material B on the surface of the insulating layer 1 to form a first bonding layer 2, then pressing and molding the raw material C, wrapping and extruding the raw material C on the surface of the first bonding layer 2 to form a flame-retardant layer 3, then uniformly coating the raw material D on the surface of the flame-retardant layer 3 to form a second bonding layer 4, finally pressing and molding the raw material E, wrapping and extruding the raw material E on the surface of the second bonding layer 4 to form a high-temperature-resistant layer 5, and thus preparing a semi-finished;
step three, press forming: and C, tightly pressing the semi-finished product A prepared in the step II to obtain a finished product.
Example three:
step one, preparing raw materials: adding 30 parts of composite fiber into 80 parts of molten silicon rubber, uniformly stirring to obtain a raw material A, adding 5 parts of glass fiber and 2 parts of coupling agent into 60 parts of adhesive, uniformly stirring to obtain a raw material B, then adding 1.5 parts of magnesium hydroxide, 1.5 parts of aluminum hydroxide, 1 part of silicon dioxide and 3 parts of coupling agent into 120 parts of molten chloroprene rubber, uniformly stirring to obtain a raw material C, adding 5 parts of polyester fiber and 2 parts of coupling agent into 60 parts of adhesive, uniformly stirring to obtain a raw material D, finally adding 6 parts of anti-aging master batch and 4 parts of high-temperature-resistant filler into 120 parts of molten butadiene rubber and 100 parts of nitrile rubber, and uniformly stirring to obtain a raw material E;
step two, packaging and processing: pressing and molding the raw material A prepared in the step one, then wrapping the raw material A on the surface of a cable to form an insulating layer 1, then uniformly coating the raw material B on the surface of the insulating layer 1 to form a first bonding layer 2, then pressing and molding the raw material C, wrapping and extruding the raw material C on the surface of the first bonding layer 2 to form a flame-retardant layer 3, then uniformly coating the raw material D on the surface of the flame-retardant layer 3 to form a second bonding layer 4, finally pressing and molding the raw material E, wrapping and extruding the raw material E on the surface of the second bonding layer 4 to form a high-temperature-resistant layer 5, and thus preparing a semi-finished;
step three, press forming: and C, tightly pressing the semi-finished product A prepared in the step II to obtain a finished product.
Comparative experiment
A certain home decoration company randomly selects 50 groups of cables to perform a performance comparison experiment, wherein 10 groups of cables are optionally processed by the preparation method of the first embodiment of the invention, 10 groups of cables are further randomly selected to be processed by the preparation method of the second embodiment of the invention, then 10 groups of cables are randomly selected to be processed by the preparation method of the third embodiment of the invention, then 10 groups of cables are optionally processed by the preparation method of the conventional fire-resistant cables in the remaining 20 groups of cables, then the remaining 10 groups of cables are prepared by the conventional fire-resistant cable processing method, and when 50 groups of cables are processed, the combustion residual amount of the cables at the specified time and the specified temperature, the time required for power failure after combustion at the specified temperature and the temperature required for combustion are recorded at the same time.
As shown in the table 2, the residual amount in the first embodiment of the invention is 45%, the time is 43.3min, the burning temperature is 230 ℃, the residual amount in the five comparative items is only inferior to 50% of that of the flame-retardant cable, the time is inferior to 100min of the flame-retardant cable, the residual amount in the second embodiment is 37%, the time is 32.6min, the burning temperature is 210 ℃, the performances in the five comparative items are inferior to those in the first embodiment, the residual amount in the third embodiment is 30%, the time is 23.5min, the burning temperature is 180 ℃, the performances in the five comparative items are inferior to those in the second embodiment, and meanwhile, the performances in the first embodiment, the second embodiment and the third embodiment of the invention are between the advantages of the flame-retardant cable and the flame-retardant cable, so that the invention can directly process five different layers, add the flame-retardant material and the flame-retardant material into the protective layer respectively, carry out flame-retardant and fire-retardant in a layered isolation manner, reasonably utilize resources, the temperature required by cable combustion is improved while the flame-retardant effect of the cable is guaranteed, and the safety of the cable is guaranteed.
The stirring device shown in figure 3 comprises a stirring bin, a control unit and a stirring unit, wherein the stirring unit is arranged in the stirring bin, the control unit provides power for the stirring unit, the stirring bin is arranged in a split mode and comprises an upper semicircle, an annular waist ring and a lower semicircle, the annular waist ring is movably connected between the upper semicircle and the lower semicircle to jointly form a spherical shape, the control unit comprises a control motor I and a control motor II, the stirring unit comprises a stirring shaft I, a stirring shaft II and stirring blades, the stirring shaft I is movably connected on a diameter shaft of the annular waist ring, one end of the stirring shaft I is connected with a power output shaft of the control motor I, the control motor I is fixedly connected with the annular waist ring, one end of the stirring shaft II is vertically connected to the middle point of the stirring shaft I, the stirring shaft II is movably connected with the stirring shaft I through a bearing, the bearing is sleeved on the stirring shaft I, and the other end, and be equipped with control motor II on the first semicircle, the power output shaft of control motor II is connected with the other end of (mixing) shaft II, be equipped with comb-tooth's stirring leaf on the (mixing) shaft I, the shape of the free end of stirring leaf and the radian looks adaptation of lower semicircle, set up middle stirring leaf on the bearing of (mixing) shaft I and (mixing) shaft II junction, stirring shaft I is hollow structure, wherein swing joint has the screw rod in the cavity, the screw rod passes through I drive of control motor, each stirring leaf all is through first transmission shaft and I swing joint of (mixing) shaft, cup joint first transmission gear on the first transmission shaft, first transmission gear and screw rod meshing transmission, the first half of stirring storehouse is equipped with the jar of placing and is equipped with 1 feed inlet at least for storing the powder raw materials, place the jar and pass through. Can reach the purpose of carrying out intensive mixing to its inside raw materials through agitating unit to can carry out intensive mixing through (mixing) shaft I and (mixing) shaft II. And can control (mixing) shaft I and (mixing) shaft II respectively and carry out clockwise or anticlockwise rotation as required mode, make the material in the agitating unit can carry out abundant stirring.
The stirring shaft I and the stirring shaft II are respectively provided with a telescopic structure, as shown in figures 4-6, the telescopic structure comprises a plurality of control arms which are sequentially nested and can relatively extend and retract, and part of the control arms extend and retract relative to the previous control arm through a telescopic oil cylinder; the other control arms can extend and retract through a group of control zipper, an extending pulley, a pull-back cable and a pull-back pulley; the arm head and the arm tail of a control arm are respectively located to a set of pulley and the pull-back pulley of stretching out, and a preceding control arm, a back control arm that do not are connected to this control arm are equallyd divide to the both ends of the pull-back cable that correspond and control zip for pull-back and stretch out a back control arm of this control arm, just the internal perisporium department of this control arm afterbody is located to the pull-back pulley. Can carry out concertina movement through setting up extending structure control dead lever, move the rod and be located agitating unit and reciprocate at the in-process control of stirring promptly, make to be located the material of co-altitude not in agitating unit and can carry out intensive mixing. The telescopic cylinder drives the extension zipper and the extension pulley to drive the control arm to extend and retract.
The number of the control arms is five, the control arms are a first control arm, a second control arm, a third control arm, a fourth control arm and a fifth control arm in sequence, and the first control arm is a basic arm; the telescopic oil cylinder comprises a first telescopic oil cylinder and a second air cylinder, the second control arm is telescopic relative to the first control arm through the first telescopic oil cylinder, and the third control arm is telescopic relative to the second control arm through the second air cylinder; the fourth control arm and the fifth control arm realize the pull-back and extension through a pull-back cable, a pull-back pulley, a control zipper and an extension pulley, and the pull-back pulley for pulling back the fourth control arm is fixed on the inner peripheral wall of the tail part of the third control arm; a pullback pulley for pullback of the fifth control arm is fixed on the inner peripheral wall of the tail part of the fourth control arm, and a cylinder barrel of the first telescopic oil cylinder is fixed in the second control arm and can be positioned in the third control arm, the fourth control arm and the fifth control arm; the cylinder barrel of the second air cylinder is fixed in the third control arm and can be located in a fourth control arm and a fifth control arm, a stretching pulley corresponding to the fourth control arm is arranged at the head of the cylinder barrel of the second air cylinder, one end of a control zipper wound on the stretching pulley is connected with the tail of the fourth control arm, the other end of the control zipper is connected with the head of the first air cylinder, one end of the control zipper for pulling the fourth control arm is connected with the inner peripheral wall of the tail of the fourth control arm, one end of the control zipper for pulling the fourth control arm is connected with the inner peripheral wall below the tail of the fourth control arm, and a pullback pulley of the fifth control arm is fixed at the inner peripheral walls at two sides of the tail of the fourth control arm.
The rope-type control arm mechanism comprises a plurality of control arms which are nested in sequence and can relatively stretch, the rope-type control arm mechanism in the embodiment comprises five control arms which are respectively a first control arm 021, a second control arm 022, a third control arm 023, a fourth control arm 024 and a fifth control arm 025, wherein the first control arm 021 is a basic arm. The second control arm 022 extends and contracts with respect to the first control arm 021 by the extension and contraction of the first telescopic cylinder 031, and the third control arm 023 extends and contracts with respect to the second control arm 022 by the extension and contraction of the second cylinder 032. The relative extension and retraction of the fourth control arm 024 and the fifth control arm 025 are realized by a first control zipper 071, a first extending pulley 051, a second control zipper 072, a second extending pulley 052, a first pull-back cable 061, a first pull-back pulley 041, a second pull-back cable 062 and a second pull-back pulley 042.
In addition, in this embodiment, the first and second pullback pulleys 041 and 042 are provided at the inner peripheral walls of the tail portions of the third and fourth control arms 023 and 024, respectively, where the tail portions are end walls of the tail ends of the control arms. The tail of each section of control arm has a certain thickness, and the tail of the control arm is communicated from inside to outside, so that the tail of the control arm has an inner peripheral wall with a certain length, and the pullback pulley can be arranged on the inner peripheral wall of the tail of the control arm. The upper end of the cross section of the tail of the third control arm 023 is trapezoidal, so that the first pullback pulley 041 can be attached to the inner peripheral wall of the corner of the upper end of the tail of the third control arm 023, and two first pullback pulleys 041 are generally arranged, so that the two first pullback pulleys 041 are symmetrically arranged at two corners of the tail of the third control arm 023. The cross section of the tail of the fourth control arm 024 is square, so that the second pullback pulleys 042 can be arranged on the inner peripheral wall of the side surface of the tail of the fourth control arm 024, and when two second pullback pulleys 042 are arranged, the second pullback pulleys 042 can be symmetrically arranged on the inner peripheral walls at two sides. The control arm is nested each other, interior control arm is in the flexible slip of the inside of outer control arm, when the control arm is flexible, the control arm afterbody is as the bottom, do not interfere with each other with the control arm, therefore, when locating control arm afterbody internal perisporium department with the pull-back pulley, accessory members such as the cable seat of corresponding pull-back cable all are located afterbody internal perisporium department, no longer occupy the space of control arm tail end, make and more be applicable to in the narrow and small agitating unit space, between second control arm 022 and the third control arm 023, no pull-back pulley blocks between third control arm 023 and the fourth control arm 024, make structural arrangement more compact, the control arm can the lapped length be showing the extension, flexible range grow, make this telescopic machanism occupy less volume promptly and can improve flexible distance again.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The flame-retardant fire-resistant wire and cable material is characterized in that: including insulating layer (1), first bond line (2), fire-retardant layer (3), second bond line (4) and high temperature resistant layer (5), insulating layer (1), first bond line (2), fire-retardant layer (3), second bond line (4) and high temperature resistant layer (5) wrap up from inside to outside in proper order, insulating layer (1) raw materials include according to part by weight: 50-80 parts of silicone rubber and 10-30 parts of composite fiber, wherein the first adhesive layer (2) comprises the following raw materials in parts by weight: 2-5 parts of glass fiber, 1-2 parts of coupling agent and 40-60 parts of adhesive, wherein the flame-retardant layer (3) comprises the following raw materials in parts by weight: 1-1.5 parts of magnesium hydroxide, 0.5-1.5 parts of aluminum hydroxide, 0.3-1 part of silicon dioxide, 2-3 parts of coupling agent and 120 parts of chloroprene rubber, wherein the second adhesive layer (4) comprises the following raw materials in parts by weight: 2-5 parts of polyester fiber, 1-2 parts of coupling agent and 40-60 parts of adhesive, wherein the high temperature resistant layer (5) comprises the following raw materials in parts by weight: 6-10 parts of anti-aging master batch, 4-8 parts of high-temperature resistant filler, 80-120 parts of butadiene rubber and 100-120 parts of nitrile rubber.
2. The flame-retardant and fire-resistant wire and cable material as claimed in claim 1, wherein: the insulating layer (1) comprises the following raw materials in parts by weight: 50 parts of silicone rubber and 10 parts of composite fiber, wherein the first adhesive layer (2) comprises the following raw materials in parts by weight: 2 parts of glass fiber, 1 part of coupling agent and 40 parts of adhesive, wherein the flame-retardant layer (3) comprises the following raw materials in parts by weight: 1 part of magnesium hydroxide, 0.5 part of aluminum hydroxide, 0.3 part of silicon dioxide, 2 parts of coupling agent and 100 parts of chloroprene rubber, wherein the second bonding layer (4) comprises the following raw materials in parts by weight: 2 parts of polyester fiber, 1 part of coupling agent and 40 parts of adhesive, wherein the high-temperature resistant layer (5) comprises the following raw materials in parts by weight: 10 parts of anti-aging master batch, 8 parts of high-temperature resistant filler, 80 parts of butadiene rubber and 120 parts of nitrile rubber.
3. The flame-retardant and fire-resistant wire and cable material as claimed in claim 1, wherein: the insulating layer (1) comprises the following raw materials in parts by weight: 65 parts of silicone rubber and 20 parts of composite fiber, wherein the first adhesive layer (2) comprises the following raw materials in parts by weight: 4 parts of glass fiber, 1.5 parts of coupling agent and 50 parts of adhesive, wherein the flame-retardant layer (3) comprises the following raw materials in parts by weight: 1 part of magnesium hydroxide, 1 part of aluminum hydroxide, 0.8 part of silicon dioxide, 2.5 parts of coupling agent and 110 parts of chloroprene rubber, wherein the second bonding layer (4) comprises the following raw materials in parts by weight: 4 parts of polyester fiber, 1.5 parts of coupling agent and 50 parts of adhesive, wherein the high-temperature resistant layer (5) comprises the following raw materials in parts by weight: 8 parts of anti-aging master batch, 6 parts of high-temperature resistant filler, 100 parts of butadiene rubber and 110 parts of nitrile rubber.
4. The flame-retardant and fire-resistant wire and cable material as claimed in claim 1, wherein: the insulating layer (1) comprises the following raw materials in parts by weight: 80 parts of silicone rubber and 30 parts of composite fiber, wherein the first adhesive layer (2) comprises the following raw materials in parts by weight: 5 parts of glass fiber, 2 parts of coupling agent and 60 parts of adhesive, wherein the flame-retardant layer (3) comprises the following raw materials in parts by weight: 1.5 parts of magnesium hydroxide, 1.5 parts of aluminum hydroxide, 1 part of silicon dioxide, 3 parts of a coupling agent and 120 parts of chloroprene rubber, wherein the second bonding layer (4) comprises the following raw materials in parts by weight: 5 parts of polyester fiber, 2 parts of coupling agent and 60 parts of adhesive, wherein the high-temperature resistant layer (5) comprises the following raw materials in parts by weight: 6 parts of anti-aging master batch, 4 parts of high-temperature resistant filler, 120 parts of butadiene rubber and 100 parts of nitrile rubber.
5. A flame-retardant fire-resistant wire and cable material according to any one of claims 1 to 4, wherein: the first adhesive layer (2) adopts hot-melt adhesive, and the second adhesive layer (4) adopts solvent adhesive.
6. A flame-retardant fire-resistant wire and cable material according to any one of claims 1 to 4, wherein: the silicon rubber is made of one or more of dimethyl silicon rubber, methyl vinyl silicon rubber, methyl phenyl vinyl silicon rubber and phenylene silicon rubber.
7. A flame-retardant fire-resistant wire and cable material according to any one of claims 1 to 4, wherein: the high-temperature resistant filling material is made of asbestos fibers.
8. A preparation method of a flame-retardant and fire-resistant wire and cable material is characterized by comprising the following steps: the method specifically comprises the following steps:
step one, preparing raw materials: adding composite fibers into molten silicon rubber, stirring uniformly to obtain a raw material A, adding glass fibers and a coupling agent into an adhesive, stirring uniformly to obtain a raw material B, adding magnesium hydroxide, aluminum hydroxide, silicon dioxide and the coupling agent into molten chloroprene rubber, stirring uniformly to obtain a raw material C, adding polyester fibers and the coupling agent into the adhesive, stirring uniformly to obtain a raw material D, adding ageing-resistant master batches and a high-temperature-resistant filler into a molten butadiene rubber and nitrile rubber mixed solution, and stirring uniformly to obtain a raw material E;
step two, packaging and processing: pressing and molding the raw material A prepared in the step one, then wrapping the raw material A on the surface of a cable to form an insulating layer (1), then uniformly coating the raw material B on the surface of the insulating layer (1) to form a first bonding layer (2), then pressing and molding the raw material C, wrapping and extruding the raw material C on the surface of the first bonding layer (2) to form a flame-retardant layer (3), then uniformly coating the raw material D on the surface of the flame-retardant layer (3) to form a second bonding layer (4), finally pressing and molding the raw material E, wrapping and extruding the raw material E on the surface of the second bonding layer (4) to form a high-temperature-resistant layer (5), and preparing a semi-finished product;
step three, press forming: and C, tightly pressing the semi-finished product A prepared in the step II to obtain a finished product.
9. The preparation method of the flame-retardant and fire-resistant wire and cable material according to claim 8, wherein the preparation method comprises the following steps: the stirring device comprises a stirring bin, a control unit and a stirring unit, wherein the stirring unit is arranged in the stirring bin, the control unit provides power for the stirring unit, the stirring bin is arranged in a split mode and comprises an upper semicircle, an annular waist ring and a lower semicircle, the annular waist ring is movably connected between the upper semicircle and the lower semicircle to jointly form a spherical shape, the control unit comprises a control motor I and a control motor II, the stirring unit comprises a stirring shaft I, a stirring shaft II and stirring blades, the stirring shaft I is movably connected onto a diameter shaft of the annular waist ring, one end of the stirring shaft I is connected with a power output shaft of the control motor I, the control motor I is fixedly connected with the annular waist ring, one end of the stirring shaft II is vertically connected to the middle point of the stirring shaft I, and the stirring shaft II is movably connected with the stirring shaft I through a bearing, the bearing is sleeved on the stirring shaft I, the other end of the stirring shaft II is movably connected with the upper semicircle, the upper semicircle is provided with a control motor II, the power output shaft of the control motor II is connected with the other end of the stirring shaft II, the stirring shaft I is provided with comb-tooth-shaped stirring blades, the shape of the free end of each stirring blade is matched with the radian of the lower semicircle, the bearing at the joint of the stirring shaft I and the stirring shaft II is provided with a middle stirring blade, the stirring shaft I is of a hollow structure, its cavity intracavity swing joint has the screw rod, and the screw rod passes through I drive of control motor, and each stirring leaf is all through first transmission shaft and I swing joint of (mixing) shaft, cup joints first transmission gear in the first transmission shaft, and first transmission gear and screw rod meshing transmission are equipped with the jar of placing and are equipped with 1 feed inlet at least that are used for storing the powder raw materials on the first semicircle in stirring storehouse, and the jar of placing passes through the pipe connection with the feed inlet.
10. The preparation method of the flame-retardant and fire-resistant wire and cable material according to claim 9, characterized in that: the stirring shaft I and the stirring shaft II are respectively provided with a telescopic structure, the telescopic structure comprises a plurality of control arms which are sequentially nested and can relatively extend and retract, and part of the control arms extend and retract relative to the previous control arm through a telescopic oil cylinder; the other control arms can extend and retract through a group of control zipper, an extending pulley, a pull-back cable and a pull-back pulley; the arm head and the arm tail of a control arm are respectively located to a set of pulley and the pull-back pulley of stretching out, and a preceding control arm, a back control arm that do not are connected to this control arm are equallyd divide to the both ends of the pull-back cable that correspond and control zip for pull-back and stretch out a back control arm of this control arm, just the internal perisporium department of this control arm afterbody is located to the pull-back pulley.
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| CN102689846B (en) * | 2012-06-07 | 2015-05-13 | 徐州重型机械有限公司 | Rope row type telescopic boom mechanism and crane provided with same |
| CN104200890B (en) * | 2014-09-03 | 2016-04-20 | 承德可得电子有限责任公司 | A kind of environmental-protection flame-retardant fire-resistant wire and cable and preparation method thereof |
| CN106334478B (en) * | 2016-08-31 | 2019-06-07 | 无锡东恒新能源科技有限公司 | A kind of rotatably close flute profile graphene slurry preparation system and preparation method thereof |
| CN109456535A (en) * | 2018-11-12 | 2019-03-12 | 长沙浩然医疗科技有限公司 | A kind of flame-retardant and fire-resistant wire and cable material and preparation method thereof |
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