CN107793761A - A kind of cable - Google Patents

A kind of cable Download PDF

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Publication number
CN107793761A
CN107793761A CN201710918342.5A CN201710918342A CN107793761A CN 107793761 A CN107793761 A CN 107793761A CN 201710918342 A CN201710918342 A CN 201710918342A CN 107793761 A CN107793761 A CN 107793761A
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CN
China
Prior art keywords
cable
parts
insulating barrier
cable according
basalt fibre
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201710918342.5A
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Chinese (zh)
Inventor
舒春柳
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Sichuan Lizhi Jiuchuang Intellectual Property Operations Ltd
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Sichuan Lizhi Jiuchuang Intellectual Property Operations Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sichuan Lizhi Jiuchuang Intellectual Property Operations Ltd filed Critical Sichuan Lizhi Jiuchuang Intellectual Property Operations Ltd
Priority to CN201710918342.5A priority Critical patent/CN107793761A/en
Publication of CN107793761A publication Critical patent/CN107793761A/en
Withdrawn legal-status Critical Current

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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
    • 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
    • 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
    • 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
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/003—Additives being defined by their diameter
    • 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
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/016—Additives defined by their aspect ratio
    • 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
    • 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
    • C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2312/00—Crosslinking
    • C08L2312/08—Crosslinking by silane

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Insulated Conductors (AREA)

Abstract

The invention discloses a kind of cable, including：An at least conductor thread core, the insulating barrier being paperwrapped in outside the conductor thread core, the screen layer being paperwrapped in outside the insulating barrier, cladding are around in the restrictive coating outside the screen layer；The insulating barrier is prepared including following parts by weight raw material：30 50 parts of basalt fibre, 20 40 parts of silicon rubber, 5 10 parts of polyethylene, 0.5 2 parts of coupling agent, 0.1 0.5 parts of crosslinking agent；Wherein, a diameter of 1 10 μm of described basalt fibre, length≤2mm；Basalt fibre is used for cable insulation by the cable, adds the heat-resisting quantity and anti-flammability of cable insulation, makes that the application of cable is wider, application field is more.

Description

A kind of cable
Technical field
The present invention relates to field of cables, and in particular to a kind of cable.
Background technology
Cable is to be fabricated to conductor thread core by twisted with one or more wire, then corresponding insulation is imposed on conductor Layer, the wire that outside is wrapped sealing sheath and formed, is mainly made up of core, insulating barrier, screen layer and restrictive coating.Cable has Take ground and space is few；Power supply safety is reliable, and electric shock possibility is small；Be advantageous to improve the power factor of power system；Operation, Maintenance work is simple and convenient；Be advantageous to beautifying city, there is many advantages, such as confidentiality, in being widely used in living and producing Every field.
The effect of insulating barrier is will to be electrically isolated from each other between core and the earth and out of phase core in cable, from And ensure not occurring when conveying electric energy relatively or alternate puncture short.By experiment and long-term use of empirical evidence, Gao Pin In the cable of matter, the material of insulating barrier needs have following performance：Compressive resistance is high；Dielectric loss angle tangent is low；Inverter fed motor Performance is good；Stable chemical performance；It is low temperature resistant；Heat resistance is good；Machining property is good；Service life is grown.Existing cable is exhausted Edge layer material is broadly divided into several major classes such as oil-paper, rubber, polyethylene, polyvinyl chloride and crosslinked polyethylene, although can meet The performance requirement of normal cable, but when for preparing the cable used under particular surroundings, its performance shows slightly deficiency.
The insulating layer material used in existing cable is mostly high polymer material or composite, has cost low mostly, adds The advantages of work is good, but there is also the shortcomings that poor heat resistance, poor fire, thus, such cable is inflammable to wait Special Ring in high temperature It is difficult to apply under border.
The content of the invention
A kind of the defects of it is an object of the invention to overcome existing cable poor heat resistance, poor fire, there is provided cable；This hair It is bright that basalt fibre is used for insulating barrier, the heat-resisting quantity and anti-flammability of cable insulation are added, makes the application of cable More extensively, application field is more.
In order to realize foregoing invention purpose, the invention provides a kind of cable, including：An at least conductor thread core, wrapping The shield being around in the insulating barrier outside the conductor thread core, the screen layer being paperwrapped in outside the insulating barrier, cladding outside the screen layer Jacket layer；The insulating barrier is prepared including following parts by weight raw material：The basalt fibre of 30-50 parts, the silicon rubber of 20-40 parts Glue, the polyethylene of 5-10 parts, the coupling agent of 0.5-2 parts, the crosslinking agent of 0.1-0.5 parts；Wherein, described basalt fibre diameter For 1-10 μm, length≤2mm.
A kind of cable of the present invention, high temperature resistant and non-ignitable characteristic using basalt fibre, is carried out to insulating polymeric material Improve, so as to get insulating barrier there is higher temperature in use and more preferable anti-flammability, meanwhile, by be crosslinked, make insulating barrier Electrical property is more preferable, and mechanical property also improves, and is more suitable for application of the cable in more hot environments and field.
A kind of above-mentioned cable, wherein, described insulating barrier is prepared by following steps：
（1）Basalt fibre is handled with coupling agent, obtains treated basalt fiber；
（2）Treated basalt fiber is well mixed with silicon rubber, polyethylene, crosslinking agent, obtains compound；
（3）Compound is extruded with extruder, obtains cable insulation layer material；
（4）Insulating layer material is paperwrapped in outside conductor thread core, forms insulating barrier.
A kind of above-mentioned cable, wherein, the nanometer that percetage by weight is 0.1-1.5% is included in described basalt fibre Aluminum oxide, nano aluminium oxide can stop the development of breakdown channel, improve the breakdown strength of basalt fibre；Described nano oxygen Changing the content of aluminium must control in prescribed limit, and its dosage is excessive, nano aluminium oxide can be caused to be risen in electric field action leading Effect, reduces the breakdown strength of basalt fibre, dosage is very few, and role is small, the breakdown to basalt fibre on the contrary Intensity increasing action is small；Preferably, the percentage by weight of described nano aluminium oxide is 0.5-1.2%.Wherein, it is preferred that described Nano aluminium oxide a diameter of 2-10nm；Diameter is excessive, and compatibility reduces, and the barrier effect of breakdown channel is reduced, diameter It is too small, it is unfavorable for disperseing.
Wherein, it is preferred that described nano aluminium oxide is the alumina whisker that draw ratio is 1.5-3 ︰ 1；Whisker can be embedded in It is more preferable to the barrier effect of breakdown channel in different crystal phase structures；Draw ratio is too small, poor to the barrier effect of breakdown channel, Draw ratio is excessive, and winding or fracture easily occurs, is unfavorable for the modification to basalt fibre.
A kind of above-mentioned cable, wherein, 0.6-2.8% nano silicon, nanometer are also included in described basalt fibre Silica can influence crystalline phase distribution and size in basalt fibre, crystalline phase in basalt fibre is more evenly distributed, size is poor It is different smaller, make basalt fibre Inverter fed motor and electrical treeing performance it is more preferable；The content of described nano silicon is necessary Control is in prescribed limit, and content is excessive, and nano silicon easily gathers, and the distribution to crystalline phase in basalt fibre on the contrary is made Into influence, make the reduction of the performance of its Inverter fed motor and electrical treeing, content is too small, small to basalt fibre uniformity influence； Preferably, the percentage by weight of described nano silicon is 1.2-2.1%.
Wherein, it is preferred that the particle diameter of described nano silicon is 5-20nm；Particle diameter is excessive, brilliant in basalt fibre Phase diameter is big, and Inverter fed motor and electrical treeing humidification are reduced；Particle diameter is too small, is unfavorable for disperseing.
A kind of above-mentioned cable, wherein, described coupling agent is silane coupler；Silane coupler can increase basalt fibre Compatibility between high polymer material, improve the electrical property of insulating layer material.
Wherein, described crosslinking agent is VTES；Polyethylene can not only be made to be crosslinked with silicon rubber, Formed tridimensional network, make material structure more stable, high temperature resistant and decay resistance are stronger, moreover it is possible to improve basalt fibre with It is interface characteristics between high polymer material, make electronics be not easy to gather, improve the breakdown voltage of material.
A kind of above-mentioned cable, wherein, described conductor thread core is the wire being prepared by conductive material；Preferably, institute The conductor material stated is one kind in copper, aluminium and its alloy.
Wherein, described screen layer is made up of shielding material；Preferably, described shielding material is composite shielding material.
Wherein, described restrictive coating includes inner sheath, inner liner, armor and serving；Restrictive coating energy sealing protection electricity Cable prevents external force from directly damaging cable internal structure from the intrusion of introduced contaminants and moisture.
Compared with prior art, beneficial effects of the present invention：
1st, the insulating barrier of cable of the present invention is that basalt fibre is material modified, adds the heat-resisting quantity of cable insulation and fire-retardant Property, make that the application of cable is wider, application field is more.
2nd, the basalt fibre paper in cable of the present invention contains nano aluminium oxide or silica, can significantly improve basalt The electrical property of fiber, it is set to be particularly suited for the insulating barrier of cable.
Embodiment
With reference to test example and embodiment, the present invention is described in further detail.But this should not be understood Following embodiment is only limitted to for the scope of the above-mentioned theme of the present invention, it is all that this is belonged to based on the technology that present invention is realized The scope of invention.
Embodiment 1
A kind of cable, is followed successively by from inside to outside：
Conductor thread core：Copper conductor；
Insulating barrier：It is prepared by the following method to obtain：（1）By 40 parts containing percetage by weight be 1.2% draw ratio be 1.5 ︰ 1, A diameter of 5nm alumina whisker and 1.2% particle diameter are entered for the basalt fibre of 15nm nano silicons with silane coupler Row processing, obtains treated basalt fiber；
（2）Treated basalt fiber is mixed with 30 parts of silicon rubber, 8 parts of polyethylene, 0.3 part of VTES Uniformly, compound is obtained；
（3）Compound is extruded with double screw extruder, is granulated, obtains insulating layer material；
（4）Insulating layer material is paperwrapped in outside conductor thread core, forms insulating barrier；
Screen layer：Carbon fiber-polyvinyl chloride composite shielding material；
Restrictive coating：Inner sheath, inner liner, armor and serving；
The cable has the advantages of high temperature resistant, good flame resistance, and insulating barrier excellent electrical property.
Embodiment 2
A kind of cable, is followed successively by from inside to outside：
Conductor thread core：Copper aluminum alloy wire；
Insulating barrier：It is prepared by the following method to obtain：（1）By 40 parts of parabasalt fiber with silane coupler Reason, obtains treated basalt fiber；
（2）Treated basalt fiber is mixed with 30 parts of silicon rubber, 8 parts of polyethylene, 0.3 part of VTES Uniformly, compound is obtained；
（3）Compound is extruded with double screw extruder, is granulated, obtains insulating layer material；
（4）Insulating layer material is paperwrapped in outside conductor thread core, forms insulating barrier；
Screen layer：Carbon fiber-polyphenylene sulfide composite shielding material；
Restrictive coating：Inner sheath, inner liner, armor and serving；
The cable has the advantages of high temperature resistant, good flame resistance, and insulating barrier excellent electrical property.
Embodiment 3
A kind of cable, is followed successively by from inside to outside：
Conductor thread core：Aluminum conductor；
Insulating barrier：It is prepared by the following method to obtain：（1）By 30 parts containing percetage by weight be 0.1% draw ratio be 3 ︰ 1, it is straight The alumina whisker that footpath is 2nm and the basalt fibre that 0.6% particle diameter is 20nm nano silicons are carried out with silane coupler Processing, obtains treated basalt fiber；
（2）Treated basalt fiber and 40 parts of silicon rubber, 10 parts of polyethylene, 0.1 part of VTES are mixed Close uniformly, obtain compound；
（3）Compound is extruded with double screw extruder, is granulated, obtains insulating layer material；
（4）Insulating layer material is paperwrapped in outside conductor thread core, forms insulating barrier；
Sealant：Silicon rubber；
Screen layer：Carbon fiber-polyethylene composite shielding material；
Restrictive coating：Inner sheath, inner liner, armor and serving；
The cable has the advantages of high temperature resistant, good flame resistance, and insulating barrier excellent electrical property.
Embodiment 4
A kind of cable, is followed successively by from inside to outside：
Conductor thread core：Copper alloy wire；
Insulating barrier：It is prepared by the following method to obtain：（1）By 50 parts contain percetage by weight be 1.5% a diameter of 5nm oxygen Change al whisker and 2.8% particle diameter to be handled with silane coupler for the basalt fibre of 5nm nano silicons, changed Property basalt fibre；
（2）Treated basalt fiber is mixed with 20 parts of silicon rubber, 5 parts of polyethylene, 0.5 part of VTES Uniformly, compound is obtained；
（3）Compound is extruded with double screw extruder, is granulated, obtains insulating layer material；
（4）Insulating layer material is paperwrapped in outside conductor thread core, forms insulating barrier；
Sealant：Polytetrafluoroethylene (PTFE)；
Screen layer：Metallic fiber-polyethylene composite shielding material；
Restrictive coating：Inner sheath, inner liner, armor and serving；
The cable has the advantages of high temperature resistant, good flame resistance, and insulating barrier excellent electrical property.
Comparative example 1
A kind of cable, is followed successively by from inside to outside：
Conductor thread core：Copper conductor；
Insulating barrier：It is prepared by the following method to obtain：（1）By 30 parts of silicon rubber, 8 parts of polyethylene, 0.3 part of the second of vinyl three TMOS is well mixed, and obtains compound；
（2）Compound is extruded with double screw extruder, is granulated, obtains insulating layer material；
（3）Insulating layer material is paperwrapped in outside conductor thread core, forms insulating barrier；
Screen layer：Carbon fiber-polyvinyl chloride composite shielding material；
Restrictive coating：Inner sheath, inner liner, armor and serving；
The cable heat-resisting quantity is poor, tensile strength is low, poor fire.
Comparative example 2
A kind of cable, is followed successively by from inside to outside：
Conductor thread core：Copper conductor；
Insulating barrier：It is prepared by the following method to obtain：（1）By 40 parts of parabasalt fiber with silane coupler Reason, obtains treated basalt fiber；
（2）Treated basalt fiber is mixed with 30 parts of silicon rubber, 8 parts of polyethylene, 0.3 part of VTES Uniformly, compound is obtained；
（3）Compound is extruded with double screw extruder, is granulated, obtains insulating layer material；
（4）Insulating layer material is paperwrapped in outside conductor thread core, forms insulating barrier；
Screen layer：Carbon fiber-polyvinyl chloride composite shielding material；
Restrictive coating：Inner sheath, inner liner, armor and serving；
The cable has the advantages of high temperature resistant, good flame resistance, but insulating barrier electrical property is poor, and easily breakdown, ageing resistance is poor.

Claims (10)

1. a kind of cable, including：An at least conductor thread core, the insulating barrier being paperwrapped in outside the conductor thread core, be paperwrapped in it is described Screen layer, cladding outside insulating barrier are around in the restrictive coating outside the screen layer；Characterized in that, the insulating barrier is including following heavy Amount part raw material are prepared：The basalt fibre of 30-50 parts, the silicon rubber of 20-40 parts, the polyethylene of 5-10 parts, 0.5-2 parts Coupling agent, the crosslinking agent of 0.1-0.5 parts；Wherein, a diameter of 1-10 μm of described basalt fibre, length≤2mm.
2. cable according to claim 1, it is characterised in that include weight percent in described continuous basalt fiber Number is 0.1-1.5% nano aluminium oxide.
3. cable according to claim 2, it is characterised in that the percentage by weight of described nano aluminium oxide is 0.5- 1.2%。
4. the cable according to Claims 2 or 3, it is characterised in that a diameter of 2-10nm of described nano aluminium oxide.
5. according to the cable described in claim any one of 2-4, it is characterised in that described nano aluminium oxide is that draw ratio is 1.5-3 ︰ 1 alumina whisker.
6. cable according to claim 1, it is characterised in that also include weight hundred in described continuous basalt fiber Fraction is 0.6-2.8% nano silicon.
7. cable according to claim 6, it is characterised in that the percentage by weight of described nano silicon is 1.2- 2.1%。
8. the cable according to claim 6 or 7, it is characterised in that the particle diameter of described nano silicon is 5-20nm.
9. cable according to claim 1, it is characterised in that described coupling agent is silane coupler.
10. cable according to claim 1, it is characterised in that described crosslinking agent is VTES.
CN201710918342.5A 2017-09-30 2017-09-30 A kind of cable Withdrawn CN107793761A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710918342.5A CN107793761A (en) 2017-09-30 2017-09-30 A kind of cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710918342.5A CN107793761A (en) 2017-09-30 2017-09-30 A kind of cable

Publications (1)

Publication Number Publication Date
CN107793761A true CN107793761A (en) 2018-03-13

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Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109181113A (en) * 2018-10-09 2019-01-11 合肥凯大新型材料科技有限公司 A kind of filler improving rubber stability

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109181113A (en) * 2018-10-09 2019-01-11 合肥凯大新型材料科技有限公司 A kind of filler improving rubber stability

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Application publication date: 20180313