CN113637270A - High-performance information transmission communication cable and production process thereof - Google Patents

High-performance information transmission communication cable and production process thereof Download PDF

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Publication number
CN113637270A
CN113637270A CN202110928209.4A CN202110928209A CN113637270A CN 113637270 A CN113637270 A CN 113637270A CN 202110928209 A CN202110928209 A CN 202110928209A CN 113637270 A CN113637270 A CN 113637270A
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Prior art keywords
parts
sleeve material
information transmission
performance information
communication cable
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CN202110928209.4A
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Inventor
徐晓丽
周俊
朱元忠
陈安鹏
郑斌
高美玲
陶恒莹
朱道进
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Anhui Cable Co Ltd
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Anhui Cable Co Ltd
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Priority to CN202110928209.4A priority Critical patent/CN113637270A/en
Publication of CN113637270A publication Critical patent/CN113637270A/en
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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
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08L27/06—Homopolymers or copolymers of vinyl chloride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06—Insulating conductors or cables
    • H01B13/14—Insulating conductors or cables by extrusion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
    • H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/30—Drying; Impregnating
    • 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
    • H01B7/29—Protection against damage caused by extremes of temperature or by 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
    • H01B7/17—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
    • 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
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/38—Boron-containing compounds
    • C08K2003/387—Borates
    • 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
    • C08L2201/08—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
    • C08L2203/00—Applications
    • C08L2203/20—Applications use in electrical or conductive gadgets
    • 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

Abstract

The invention relates to the technical field of cables, in particular to a high-performance information transmission communication cable and a production process thereof, wherein the high-performance information transmission communication cable comprises a wire core, an inner sleeve material and an outer sleeve material, wherein the inner sleeve material comprises the following raw materials in parts by weight: polyvinyl chloride resin, light calcium carbonate, a plasticizer and an antioxidant; the outer sleeve material comprises the following raw materials in parts by weight: thermoplastic polyurethane, ethylene propylene diene monomer, a composite flame retardant, nano titanium dioxide, nano zinc oxide, rock wool fiber and phthalate; the invention improves the electrical insulation property and mechanical property of polyvinyl chloride by adding the inner sleeve material and the outer sleeve material, and the inner sleeve material is added with the chlorinated paraffin and the light calcium carbonate, and can well protect the copper conductor in the polyvinyl chloride.

Description

High-performance information transmission communication cable and production process thereof
Technical Field
The invention relates to the technical field of cables, in particular to a high-performance information transmission communication cable and a production process thereof.
Background
With the rapid development of economy, the application of the cable in the fields of communication, electric power and the like is very wide. However, since the cable is a combustible substance, the problem of flame retardancy of the cable has attracted attention from countries around the world. A large amount of smoke and toxic and corrosive gas released by the cable during burning are dangerous factors in fire, and the safe evacuation and fire extinguishing work of people is prevented in the fire, so that the life and property are seriously lost.
In the prior art, in order to improve the flame retardant property of the cable, a large amount of flame retardant materials are often added, so that the overall performance of the cable is affected. Therefore, we propose a high performance information transmission communication cable and its production process to solve the above problems.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a high-performance information transmission communication cable and a production process thereof, so as to overcome the problems mentioned in the background technology.
In order to achieve the above purpose, the technical scheme of the invention is realized by the following technical scheme: the high-performance information transmission communication cable comprises a wire core, an inner sleeve material and an outer sleeve material, wherein the inner sleeve material comprises the following raw materials in parts by weight: 65-75 parts of polyvinyl chloride resin, 5-10 parts of light calcium carbonate, 8-10 parts of plasticizer and 1-2 parts of antioxidant; the outer sleeve material comprises the following raw materials in parts by weight: 50-60 parts of thermoplastic polyurethane, 10-12 parts of ethylene propylene diene monomer, 10-15 parts of composite flame retardant, 8-12 parts of nano titanium dioxide, 4-6 parts of nano zinc oxide, 6-10 parts of rock wool fiber and 6-12 parts of phthalate.
Preferably, the inner sleeve material comprises the following raw materials in parts by weight: 70 parts of polyvinyl chloride resin, 8 parts of light calcium carbonate, 9 parts of plasticizer and 1.5 parts of antioxidant; the inner sleeve material comprises the following raw materials in parts by weight: 55 parts of thermoplastic polyurethane, 11 parts of ethylene propylene diene monomer, 12 parts of composite flame retardant, 10 parts of nano titanium dioxide, 5 parts of nano zinc oxide, 8 parts of rock wool fiber and 8 parts of phthalate.
Preferably, the plasticizer is dibutyl phthalate and chlorinated paraffin according to a mass ratio of 3: 1 and mixing.
Preferably, the antioxidant is any one of antioxidant 1010 and bisphenol A.
Preferably, the composite flame retardant comprises antimony trioxide, trichloroethyl phosphate and zinc borate, and the mass ratio of the antimony trioxide to the trichloroethyl phosphate to the zinc borate is 1: 4: 4.
preferably, the preparation steps of the inner cover material are as follows: uniformly stirring polyvinyl chloride resin, light calcium carbonate, a plasticizer and an antioxidant at 40-50 ℃ to obtain a mixture; and (4) feeding the mixture into a double-screw granulator to extrude and granulate to obtain the inner batch.
Preferably, the preparation steps of the casing material are as follows: uniformly stirring thermoplastic polyurethane, ethylene propylene diene monomer, a composite flame retardant and phthalate at 70-80 ℃ to obtain a mixture A; putting the nano titanium dioxide, the nano zinc oxide and the rock wool fibers into a stirrer and uniformly stirring to obtain a mixture B; and (3) uniformly stirring the mixture A and the mixture B, and then feeding the mixture A and the mixture B into a double-screw granulator for extrusion granulation to obtain the outer sleeve material.
The invention also provides a production process of the high-performance information transmission communication cable, which specifically comprises the following steps:
(1) twisting a plurality of copper wires to obtain a wire core;
(2) extruding the inner sleeve material on the wire core by an extruding process, and cooling to 30-40 ℃ by water cooling to obtain the cable;
(3) stranding a plurality of cables, and uniformly covering talcum powder on the stranded cables to obtain a prefabricated integral cable;
(4) and extruding and wrapping the outer sleeve material on the prefabricated integral cable by an extrusion wrapping process, cooling to 25-30 ℃ by water cooling, and drying to obtain the high-performance information transmission communication cable.
Preferably, in step (3), the talc is dried at 70-80 ℃ for 30-40min in advance before covering.
The invention has the beneficial effects that:
according to the invention, the inner sleeve material and the outer sleeve material are added, the inner sleeve material adopts polyvinyl chloride as a base material, and chlorinated paraffin and light calcium carbonate are added, so that the electrical insulation property and the mechanical property of the polyvinyl chloride are improved, and a good protection effect on a copper conductor in the inner sleeve material can be realized;
the nano titanium dioxide and the nano zinc oxide are added, so that the nano titanium dioxide and the nano zinc oxide can be fully filled in the gap of the outer sheath, the extraction speed of other media to a plasticizer is reduced, the service life of the outer sheath is prolonged, and meanwhile, the added nano titanium dioxide and the added nano zinc oxide improve the oxidation resistance and the mildew-proof antibacterial property of the outer sheath;
according to the invention, the twisted cable is uniformly covered with the talcum powder, so that the outer sheath and the inner sheath are prevented from being softened and bonded due to overhigh temperature during extrusion, and the integral quality of the cable is not influenced;
according to the invention, by adding the composite flame retardant and the rock wool fiber, the composite flame retardant ensures that the jacket material has good flame retardance, and simultaneously, the mechanical property of the jacket material is not reduced, so that the overall performance of the cable is better; the added rock wool fiber further improves the wear resistance and heat resistance of the outer coating.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The utility model provides a high performance information transmission communication cable, includes sinle silk, interior cover material and outer cover material, and interior cover material includes the following part by weight raw materials: 65 parts of polyvinyl chloride resin, 5 parts of light calcium carbonate, 8 parts of plasticizer and 1 part of antioxidant; the outer sleeve material comprises the following raw materials in parts by weight: 50 parts of thermoplastic polyurethane, 10 parts of ethylene propylene diene monomer, 10 parts of composite flame retardant, 8 parts of nano titanium dioxide, 4 parts of nano zinc oxide, 6 parts of rock wool fiber and 6 parts of phthalate.
The plasticizer is dibutyl phthalate and chlorinated paraffin according to a mass ratio of 3: 1, mixing; the antioxidant is antioxidant 1010; the composite flame retardant comprises antimony trioxide, trichloroethyl phosphate and zinc borate, wherein the mass ratio of the antimony trioxide to the trichloroethyl phosphate to the zinc borate is 1: 4: 4.
the preparation steps of the inner sleeve material are as follows: uniformly stirring polyvinyl chloride resin, light calcium carbonate, a plasticizer and an antioxidant at 40 ℃ to obtain a mixture; and (4) feeding the mixture into a double-screw granulator to extrude and granulate to obtain the inner batch.
The preparation steps of the outer sleeve material are as follows: uniformly stirring thermoplastic polyurethane, ethylene propylene diene monomer, a composite flame retardant and phthalate at 70 ℃ to obtain a mixture A; putting the nano titanium dioxide, the nano zinc oxide and the rock wool fibers into a stirrer and uniformly stirring to obtain a mixture B; and (3) uniformly stirring the mixture A and the mixture B, and then feeding the mixture A and the mixture B into a double-screw granulator for extrusion granulation to obtain the outer sleeve material.
The production process of the high-performance information transmission communication cable comprises the following steps:
(1) twisting a plurality of copper wires to obtain a wire core;
(2) extruding the inner sleeve material on the wire core by an extruding process, and cooling to 30 ℃ by water cooling to obtain the cable;
(3) stranding a plurality of cables, and uniformly covering talcum powder on the stranded cables to obtain a prefabricated integral cable;
(4) and extruding and wrapping the outer sleeve material on the prefabricated integral cable by an extruding and wrapping process, cooling to 25 ℃ by water cooling, and drying to obtain the high-performance information transmission communication cable.
Example 2
The utility model provides a high performance information transmission communication cable, includes sinle silk, interior cover material and outer cover material, and interior cover material includes the following part by weight raw materials: 70 parts of polyvinyl chloride resin, 8 parts of light calcium carbonate, 9 parts of plasticizer and 1.5 parts of antioxidant; the outer sleeve material comprises the following raw materials in parts by weight: 55 parts of thermoplastic polyurethane, 11 parts of ethylene propylene diene monomer, 12 parts of composite flame retardant, 10 parts of nano titanium dioxide, 5 parts of nano zinc oxide, 8 parts of rock wool fiber and 8 parts of phthalate.
The plasticizer is dibutyl phthalate and chlorinated paraffin according to a mass ratio of 3: 1, mixing; the antioxidant is antioxidant 1010; the composite flame retardant comprises antimony trioxide, trichloroethyl phosphate and zinc borate, wherein the mass ratio of the antimony trioxide to the trichloroethyl phosphate to the zinc borate is 1: 4: 4.
the preparation steps of the inner sleeve material are as follows: uniformly stirring polyvinyl chloride resin, light calcium carbonate, a plasticizer and an antioxidant at 45 ℃ to obtain a mixture; and (4) feeding the mixture into a double-screw granulator to extrude and granulate to obtain the inner batch.
The preparation steps of the outer sleeve material are as follows: uniformly stirring thermoplastic polyurethane, ethylene propylene diene monomer, a composite flame retardant and phthalate at 75 ℃ to obtain a mixture A; putting the nano titanium dioxide, the nano zinc oxide and the rock wool fibers into a stirrer and uniformly stirring to obtain a mixture B; and (3) uniformly stirring the mixture A and the mixture B, and then feeding the mixture A and the mixture B into a double-screw granulator for extrusion granulation to obtain the outer sleeve material.
The production process of the high-performance information transmission communication cable comprises the following steps:
(1) twisting a plurality of copper wires to obtain a wire core;
(2) extruding the inner sleeve material on the wire core by an extruding process, and cooling to 35 ℃ by water cooling to obtain the cable;
(3) stranding a plurality of cables, and uniformly covering talcum powder on the stranded cables to obtain a prefabricated integral cable;
(4) and extruding and wrapping the outer sleeve material on the prefabricated integral cable by an extrusion wrapping process, cooling to 28 ℃ by water cooling, and drying to obtain the high-performance information transmission communication cable.
Example 3
The utility model provides a high performance information transmission communication cable, includes sinle silk, interior cover material and outer cover material, and interior cover material includes the following part by weight raw materials: 75 parts of polyvinyl chloride resin, 10 parts of light calcium carbonate, 10 parts of plasticizer and 2 parts of antioxidant; the outer sleeve material comprises the following raw materials in parts by weight: 60 parts of thermoplastic polyurethane, 12 parts of ethylene propylene diene monomer, 15 parts of composite flame retardant, 12 parts of nano titanium dioxide, 6 parts of nano zinc oxide, 10 parts of rock wool fiber and 12 parts of phthalate.
The plasticizer is dibutyl phthalate and chlorinated paraffin according to a mass ratio of 3: 1, mixing; the antioxidant is bisphenol A; the composite flame retardant comprises antimony trioxide, trichloroethyl phosphate and zinc borate, wherein the mass ratio of the antimony trioxide to the trichloroethyl phosphate to the zinc borate is 1: 4: 4.
the preparation steps of the inner sleeve material are as follows: uniformly stirring polyvinyl chloride resin, light calcium carbonate, a plasticizer and an antioxidant at 50 ℃ to obtain a mixture; and (4) feeding the mixture into a double-screw granulator to extrude and granulate to obtain the inner batch.
The preparation steps of the outer sleeve material are as follows: uniformly stirring thermoplastic polyurethane, ethylene propylene diene monomer, a composite flame retardant and phthalate at 80 ℃ to obtain a mixture A; putting the nano titanium dioxide, the nano zinc oxide and the rock wool fibers into a stirrer and uniformly stirring to obtain a mixture B; and (3) uniformly stirring the mixture A and the mixture B, and then feeding the mixture A and the mixture B into a double-screw granulator for extrusion granulation to obtain the outer sleeve material.
The production process of the high-performance information transmission communication cable comprises the following steps:
(1) twisting a plurality of copper wires to obtain a wire core;
(2) extruding the inner sleeve material on the wire core by an extruding process, and cooling to 40 ℃ by water cooling to obtain the cable;
(3) stranding a plurality of cables, and uniformly covering talcum powder on the stranded cables to obtain a prefabricated integral cable;
(4) and extruding and wrapping the outer sleeve material on the prefabricated integral cable by an extruding and wrapping process, cooling to 30 ℃ by water cooling, and drying to obtain the high-performance information transmission communication cable.
Comparative example 1
Compared to example 2, the rock wool fibers in the jacket material were removed, and the others remained unchanged.
Comparative example 2
Compared with the embodiment 2, the composite flame retardant is replaced by magnesium hydroxide, and the rest is kept unchanged.
Comparative example 3
Compared with the embodiment 2, the composite flame retardant is replaced by magnesium hydroxide, the rock wool fiber in the outer cover material is removed, and the rest is kept unchanged.
Performance detection
1. The test method comprises the following steps: the cable jacket materials prepared in examples 1 to 3 and comparative examples 1 to 3 were sampled and tested for tensile strength and elongation at break according to GB/T1040, respectively. Specific detection results are shown in table 1.
TABLE 1 Performance test
Figure BDA0003209708870000061
Figure BDA0003209708870000071
2. The test method comprises the following steps: the cable jacket materials prepared in examples 1 to 3 and comparative examples 1 to 3 were sampled and tested for flame retardancy according to GB/T2460-1993, respectively. Specific detection results are shown in table 2.
TABLE 2 flame retardancy
Group of Limiting oxygen index/%)
Example 1 43
Example 2 48
Example 3 45
Comparative example 1 34
Comparative example 2 27
Comparative example 3 22
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, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (9)

1. The high-performance information transmission communication cable is characterized by comprising a wire core, an inner sleeve material and an outer sleeve material, wherein the inner sleeve material comprises the following raw materials in parts by weight: 65-75 parts of polyvinyl chloride resin, 5-10 parts of light calcium carbonate, 8-10 parts of plasticizer and 1-2 parts of antioxidant; the outer sleeve material comprises the following raw materials in parts by weight: 50-60 parts of thermoplastic polyurethane, 10-12 parts of ethylene propylene diene monomer, 10-15 parts of composite flame retardant, 8-12 parts of nano titanium dioxide, 4-6 parts of nano zinc oxide, 6-10 parts of rock wool fiber and 6-12 parts of phthalate.
2. The high-performance information transmission communication cable according to claim 1, wherein the inner covering material comprises the following raw materials in parts by weight: 70 parts of polyvinyl chloride resin, 8 parts of light calcium carbonate, 9 parts of plasticizer and 1.5 parts of antioxidant; the inner sleeve material comprises the following raw materials in parts by weight: 55 parts of thermoplastic polyurethane, 11 parts of ethylene propylene diene monomer, 12 parts of composite flame retardant, 10 parts of nano titanium dioxide, 5 parts of nano zinc oxide, 8 parts of rock wool fiber and 8 parts of phthalate.
3. The high-performance information transmission communication cable according to claim 1, wherein the plasticizer is dibutyl phthalate and chlorinated paraffin in a mass ratio of 3: 1 and mixing.
4. The high performance information transmission communication cable according to claim 1, wherein the antioxidant is any one of antioxidant 1010 and bisphenol a.
5. The high-performance information transmission communication cable according to claim 1, wherein the composite flame retardant comprises antimony trioxide, trichloroethyl phosphate and zinc borate, and the mass ratio of the antimony trioxide to the trichloroethyl phosphate to the zinc borate is 1: 4: 4.
6. the high performance information transmission communication cable of claim 1, wherein the inner jacket material is prepared by the steps of: uniformly stirring polyvinyl chloride resin, light calcium carbonate, a plasticizer and an antioxidant at 40-50 ℃ to obtain a mixture; and (4) feeding the mixture into a double-screw granulator to extrude and granulate to obtain the inner batch.
7. The high performance information transmission communication cable according to claim 1, wherein the outer jacket material is prepared by the steps of: uniformly stirring thermoplastic polyurethane, ethylene propylene diene monomer, a composite flame retardant and phthalate at 70-80 ℃ to obtain a mixture A; putting the nano titanium dioxide, the nano zinc oxide and the rock wool fibers into a stirrer and uniformly stirring to obtain a mixture B; and (3) uniformly stirring the mixture A and the mixture B, and then feeding the mixture A and the mixture B into a double-screw granulator for extrusion granulation to obtain the outer sleeve material.
8. A process for manufacturing a high performance information transmission communication cable according to any one of claims 1 to 7, wherein the process for manufacturing the cable comprises the steps of:
(1) twisting a plurality of copper wires to obtain a wire core;
(2) extruding the inner sleeve material on the wire core by an extruding process, and cooling to 30-40 ℃ by water cooling to obtain the cable;
(3) stranding a plurality of cables, and uniformly covering talcum powder on the stranded cables to obtain a prefabricated integral cable;
(4) and extruding and wrapping the outer sleeve material on the prefabricated integral cable by an extrusion wrapping process, cooling to 25-30 ℃ by water cooling, and drying to obtain the high-performance information transmission communication cable.
9. The process for producing a high performance information transmission communication cable according to claim 8, wherein in the step (3), the talc powder is dried at 70-80 ℃ for 30-40min in advance before covering.
CN202110928209.4A 2021-08-13 2021-08-13 High-performance information transmission communication cable and production process thereof Pending CN113637270A (en)

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Application publication date: 20211112