CN103897258A - High-strength and high-flame-resistance cable - Google Patents

High-strength and high-flame-resistance cable Download PDF

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Publication number
CN103897258A
CN103897258A CN201410158647.7A CN201410158647A CN103897258A CN 103897258 A CN103897258 A CN 103897258A CN 201410158647 A CN201410158647 A CN 201410158647A CN 103897258 A CN103897258 A CN 103897258A
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parts
cable
protecting pipe
gained
plant ash
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CN201410158647.7A
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CN103897258B (en
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赵月
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Linqu County Power Supply Co Of State Grid Shandong Electric Power Co
State Grid Corp of China SGCC
Weifang Power Supply Co of State Grid Shandong Electric Power Co Ltd
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Priority to CN201510719175.2A priority Critical patent/CN105237866B/en
Priority to CN201510719710.4A priority patent/CN105237867B/en
Priority to CN201410158647.7A priority patent/CN103897258B/en
Publication of CN103897258A publication Critical patent/CN103897258A/en
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04Homopolymers or copolymers of ethene
    • C08L23/08Copolymers of ethene
    • C08L23/0807Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
    • C08L23/0815Copolymers of ethene with aliphatic 1-olefins
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00Processes of treating or compounding macromolecular substances
    • C08J3/24Crosslinking, e.g. vulcanising, of macromolecules
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00Processes of treating or compounding macromolecular substances
    • C08J3/24Crosslinking, e.g. vulcanising, of macromolecules
    • C08J3/246Intercrosslinking of at least two polymers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/44Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
    • H01B3/441Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04Homopolymers or copolymers of ethene
    • C08J2323/08Copolymers of ethene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2405/00Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2401/00 or C08J2403/00
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/02Flame or fire retardant/resistant
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00Applications
    • C08L2203/20Applications use in electrical or conductive gadgets
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00Applications
    • C08L2203/20Applications use in electrical or conductive gadgets
    • C08L2203/202Applications use in electrical or conductive gadgets use in electrical wires or wirecoating

Abstract

The invention discloses a high-strength and high-flame-resistance cable and belongs to the field of electric power facilities. The sheath pipe of the cable is prepared from the following raw materials in parts by weight: 80-90 parts of polyolefin, 2-5 parts of plant ash, 1-3 parts of gum, 0.5-0.8 part of a silane coupling agent, 1-2 parts of stearic acid, 0.6-0.8 part of white carbon black and 3-5 parts of electrolytic zinc acid leaching residue. The tensile strength of the obtained cable sheath pipe is greater than 26MPa; the elongation at break is greater than 750 percent; the oxygen index is greater than 36; the flame resistance reaches the grade A; the obtained cable sheath pipe has both obviously high strength and high flame resistance; meanwhile, the plant ash and the electrolytic zinc acid leaching residue are recycled and utilized, the environmental pollution and the production cost is reduced, and obvious economic benefit and environmental protection benefit are created.

Description

High-intensity high combustion property cable
Technical field
The present invention relates to electric power facility field, relate in particular to a kind of high-intensity high combustion property cable.
Background technology
Along with the progressively quickening of urbanization process, city planning is more and more tending towards modernization.In Process of Urban Development, put cable underground and become minimum construction requirements.Meanwhile, in urban renewal process, also need to set up skyborne various putting cable underground.Put cable underground and tend at present adopt trenchless technology to construct, the advantages such as this constructional method has does not affect traffic, little to stratum structure deteriorate, and the cycle is short are applicable to simultaneously, adopt non-excavating construction method, for cable require highly, have and show as: cable need to have that intensity is high, rigidity good toughness etc., in addition, due to the feature of cable itself, the feature that also needs to have high flame retardant, in case short circuit etc. cause fire, causes security incident.For the cable in field, there is too above-mentioned requirements.Cable will reach above-mentioned requirements, and its protecting pipe is also just had to same requirement, because protecting pipe is positioned at the outermost layer of cable.Common cable sheath tube, is mostly mainly to adopt the macromolecular materials such as polyethylene, polypropylene, polyvinyl chloride, and has added certain additive, to improve its correlated performance at present.But, these current cable sheath tubes, aspect intensity, rigidity wilfulness and flame retardant resistance, still undesirable, or only above performance in one aspect, have certain improvement, there is very large further improved space.
Summary of the invention
One of goal of the invention of the present invention, is the problem for above-mentioned existence, and a kind of cable that has intensity, rigidity toughness and flame retardant resistance concurrently is provided.
The technical solution used in the present invention is such: a kind of high flame retardant high-strength cable, comprise successively from inside to outside core, insulation layer, sheath and protecting pipe, and the raw material of described protecting pipe, by weight, comprising:
Polyolefine 80-90 part
Plant ash 2-5 part
Natural gum 1-3 part
Silane coupling agent 0.5-0.8 part
Stearic acid 1-2 part
White carbon black 0.6-0.8 part
Electrolytic zinc acid leaching slag 3-5 part.
In above-mentioned raw material, polyolefine, as matrix, is equipped with plant ash, stearic acid, electrolytic zinc acid leaching slag and silane crosslinker and is cross-linked, and makes described polyolefine be able to modification, and be aided with natural gum and carry out conjunctiva sealing, thereby obtain having the protecting pipe of high strength and high flame retardant.
" electrolytic zinc acid leaching slag " described in the present invention, the production technique that refers to employing roasting-leaching-electrolysis is carried out the electrolytic zinc acid leaching slag that zinc hydrometallurgy discharges, in this electrolytic zinc acid leaching slag, contain a large amount of mineral ions, typical composition quality percentage composition is: zinc silicate 8-10%, copper 1-2%, plumbous 0.5-1.8%, silicon 2-3%, iron 1-2%, calcium 10-12%, magnesium 2-3%.This electrolytic zinc acid leaching slag does not have suitable treatment process at present, easily to environment.The present invention draws by a large amount of experiments: adopt the electrolytic zinc acid leaching slag of suitable proportion, add other components, can strengthen the intensity of protecting pipe.
As preferred technical scheme: described polyolefine is ethylene-octene copolymer.
As preferred technical scheme: described plant ash is the plant ash of gained after power plant's burning straw.On the one hand can recycle the plant ash of power plant, on the other hand due to the contained material of plant ash, for the intensity of cable sheath tube with fire-retardantly there is better help, also reduce raw materials cost simultaneously.
As preferred technical scheme: described natural gum is gum arabic.Gum arabic wide material sources, low price, and in the material combination of protecting pipe, can work in coordination with the better flame retardant effect of generation.
As preferred technical scheme: the raw material of described protecting pipe, by weight, comprising:
85 parts of polyolefine
3 parts of plant ash
2 parts of natural gum
0.6 part of silane coupling agent
1.5 parts of stearic acid
0.7 part of white carbon black
4 parts of electrolytic zinc acid leaching slags.
Intensity and the flame retardant resistance of the protecting pipe that contriver prepares by a large amount of raw materials that experiment showed, this ratio are better.
Two of object of the present invention, is to provide a kind of above-mentioned high-intensity high to fire the preparation method of property cable, and the technical scheme of employing is: comprise the following steps:
(1) melt blending: polyolefine, plant ash, silane coupling agent, stearic acid, electrolytic zinc acid leaching slag are mixed according to aforementioned proportion, stir 10min with the speed of 600r/min, then melt blending 10min at 170 DEG C, obtains sizing material;
(2) crosslinked: the sizing material of step (1) gained is cross-linked after 30min at 170 DEG C, then adds natural gum and white carbon black according to described ratio, reaction 10min, obtains compound;
(3) granulation: the compound of step (2) gained is joined in twin screw extruder and carries out blending extrusion, then carry out granulation, obtain particulate material;
(4) prepare protecting pipe: the particulate material of gained in step (3) is joined in basic forming machine and carries out, after moulding, sizing, traction, cutting, obtaining protecting pipe;
(5) prepare cable: the outermost layer by the protecting pipe of step (4) gained for cable, obtains cable.
Owing to adopting above-mentioned preparation method, the raw material of cable sheath tube passes through reaction, mutually collaborative, thereby makes the protecting pipe obtaining have high strength and high flame retardant.
In sum, owing to having adopted technique scheme, the invention has the beneficial effects as follows: the cable sheath tube tensile strength of gained is more than 26MPa, elongation at break is more than 750%, oxygen index is more than 36, flame retardant properties reaches A level, has the significant strong feature of intensity high flame resistance concurrently; Meanwhile, recycle plant ash and electrolytic zinc acid leaching slag, reduced environmental pollution colleague and reduced production cost, there is significant economic benefit and environmental benefit.
Embodiment
The present invention is described in detail below.
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Embodiment 1:
A kind of high flame retardant high-strength cable, comprises core, insulation layer, sheath and protecting pipe from inside to outside successively, and the raw material of protecting pipe, by weight, comprising:
90 parts of ethylene-octene copolymers (the strong plastic material ENGAG8003 of company limited of the Jin Ze of Foshan City)
5 parts of plant ash
3 parts of natural gum
0.8 part of butadienyl triethoxyl silane
2 parts of stearic acid
0.8 part of white carbon black
5 parts of electrolytic zinc acid leaching slags;
Preparation method: comprise the following steps:
(1) melt blending: polyolefine, plant ash, silane coupling agent, stearic acid, electrolytic zinc acid leaching slag are mixed according to aforementioned proportion, stir 10min with the speed of 600r/min, then melt blending 10min at 170 DEG C, obtains sizing material;
(2) crosslinked: the sizing material of step (1) gained is cross-linked after 30min at 170 DEG C, then adds natural gum and white carbon black according to described ratio, reaction 10min, obtains compound;
(3) granulation: the compound of step (2) gained is joined in twin screw extruder and carries out blending extrusion, then carry out granulation, obtain particulate material;
(4) prepare protecting pipe: the particulate material of gained in step (3) is joined in basic forming machine and carries out, after moulding, sizing, traction, cutting, obtaining protecting pipe A;
(5) prepare cable: the outermost layer by the protecting pipe of step (4) gained for cable, obtains cable.
  
Embodiment 2
A kind of high flame retardant high-strength cable, comprises core, insulation layer, sheath and protecting pipe from inside to outside successively, and the raw material of protecting pipe, by weight, comprising:
80 parts of ethylene-octene copolymers (the strong plastic material ENGAG8003 of company limited of the Jin Ze of Foshan City)
2 parts of plant ash
1 part of natural gum
0.5 part of butadienyl triethoxyl silane
1 part of stearic acid
0.6 part of white carbon black
3 parts of electrolytic zinc acid leaching slags;
Preparation method: comprise the following steps:
(1) melt blending: polyolefine, plant ash, silane coupling agent, stearic acid, electrolytic zinc acid leaching slag are mixed according to aforementioned proportion, stir 10min with the speed of 600r/min, then melt blending 10min at 170 DEG C, obtains sizing material;
(2) crosslinked: the sizing material of step (1) gained is cross-linked after 30min at 170 DEG C, then adds natural gum and white carbon black according to described ratio, reaction 10min, obtains compound;
(3) granulation: the compound of step (2) gained is joined in twin screw extruder and carries out blending extrusion, then carry out granulation, obtain particulate material;
(4) prepare protecting pipe: the particulate material of gained in step (3) is joined in basic forming machine and carries out, after moulding, sizing, traction, cutting, obtaining protecting pipe B;
(5) prepare cable: the outermost layer by the protecting pipe of step (4) gained for cable, obtains cable.
  
Embodiment 3
A kind of high flame retardant high-strength cable, comprises core, insulation layer, sheath and protecting pipe from inside to outside successively, and the raw material of protecting pipe, by weight, comprising:
85 parts of ethylene-octene copolymers (the strong plastic material ENGAG8003 of company limited of the Jin Ze of Foshan City)
3 parts of plant ash
2 parts of natural gum
0.6 part of butadienyl triethoxyl silane
1.5 parts of stearic acid
0.7 part of white carbon black
4 parts of electrolytic zinc acid leaching slags;
Preparation method: comprise the following steps:
(1) melt blending: polyolefine, plant ash, silane coupling agent, stearic acid, electrolytic zinc acid leaching slag are mixed according to aforementioned proportion, stir 10min with the speed of 600r/min, then melt blending 10min at 170 DEG C, obtains sizing material;
(2) crosslinked: the sizing material of step (1) gained is cross-linked after 30min at 170 DEG C, then adds natural gum and white carbon black according to described ratio, reaction 10min, obtains compound;
(3) granulation: the compound of step (2) gained is joined in twin screw extruder and carries out blending extrusion, then carry out granulation, obtain particulate material;
(4) prepare protecting pipe: the particulate material of gained in step (3) is joined in basic forming machine and carries out, after moulding, sizing, traction, cutting, obtaining protecting pipe C;
(5) prepare cable: the outermost layer by the protecting pipe of step (4) gained for cable, obtains cable.
Embodiment semi-finals degree performance and flame retardant properties test
Testing standard: according to protecting pipe A, the protecting pipe B of the standard testing embodiment of the present invention 1-3 gained of GB/T1040.1-2006, tensile strength and the elongation at break of protecting pipe C, according to protecting pipe A, the protecting pipe B of the standard testing embodiment of the present invention 1-3 gained of GB/T2406-1993, the oxygen index of protecting pipe C; According to protecting pipe A, the protecting pipe B of the standard testing embodiment of the present invention 1-3 gained of GB12666.5, the flame retardant rating of protecting pipe C, and with the common polythene protecting pipe bought on market as a comparison case, its result is as shown in table 1,
Table 1 strength property and flame retardant properties test result
? Protecting pipe A Protecting pipe B Protecting pipe C Comparative example
Tensile strength (MPa) 28 26 36 21
Elongation at break (%) 750 770 860 580
Oxygen index 36 37 39 29
Flame retardant rating B B A C
As can be seen from Table 1, the product of above-described embodiment, has the strong feature of significant intensity high flame resistance concurrently.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.

Claims (6)

1. a high-intensity high combustion property cable, comprises core, insulation layer, sheath and protecting pipe from inside to outside successively, it is characterized in that the raw material of described protecting pipe by weight, comprising:
Polyolefine 80-90 part
Plant ash 2-5 part
Natural gum 1-3 part
Silane coupling agent 0.5-0.8 part
Stearic acid 1-2 part
White carbon black 0.6-0.8 part
Electrolytic zinc acid leaching slag 3-5 part.
2. high-intensity high combustion property cable according to claim 1, is characterized in that, described polyolefine is ethylene-octene copolymer.
3. high-intensity high combustion property cable according to claim 1, is characterized in that, described plant ash is the plant ash of gained after power plant's burning straw.
4. high-intensity high combustion property cable according to claim 1, is characterized in that, described natural gum is gum arabic.
5. high-intensity high combustion property cable according to claim 1, is characterized in that the raw material of described protecting pipe by weight, comprising:
85 parts of polyolefine
3 parts of plant ash
2 parts of natural gum
0.6 part of silane coupling agent
1.5 parts of stearic acid
0.7 part of white carbon black
4 parts of electrolytic zinc acid leaching slags.
6. the preparation method of high-intensity high combustion property cable claimed in claim 1, is characterized in that, comprises the following steps:
(1) melt blending: polyolefine, plant ash, silane coupling agent, stearic acid, electrolytic zinc acid leaching slag are mixed according to aforementioned proportion, stir 10min with the speed of 600r/min, then melt blending 10min at 170 DEG C, obtains sizing material;
(2) crosslinked: the sizing material of step (1) gained is cross-linked after 30min at 170 DEG C, then adds natural gum and white carbon black according to described ratio, reaction 10min, obtains compound;
(3) granulation: the compound of step (2) gained is joined in twin screw extruder and carries out blending extrusion, then carry out granulation, obtain particulate material;
(4) prepare protecting pipe: the particulate material of gained in step (3) is joined in basic forming machine and carries out, after moulding, sizing, traction, cutting, obtaining protecting pipe;
(5) prepare cable: the outermost layer by the protecting pipe of step (4) gained for cable, obtains cable.
CN201410158647.7A 2014-04-21 2014-04-21 High-intensity high combustion property cable Expired - Fee Related CN103897258B (en)

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CN201510719710.4A CN105237867B (en) 2014-04-21 2014-04-21 A kind of preparation method of cable sheath tube
CN201410158647.7A CN103897258B (en) 2014-04-21 2014-04-21 High-intensity high combustion property cable

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CN105647089A (en) * 2016-04-06 2016-06-08 段宝荣 Environment-friendly cable with high strength and high flame retardancy
CN105670193A (en) * 2016-04-06 2016-06-15 段宝荣 Environment-friendly high-strength high-flame-retardancy acrylonitrile-ethylene-styrene cable
CN105802103A (en) * 2016-04-06 2016-07-27 段宝荣 Environment-friendly type carbon fiber modified acrylonitrile-ethylene-styrene cable with high strength and high flame retardance
CN105845247A (en) * 2016-04-06 2016-08-10 段宝荣 Environment-friendly high intensity high flame resistance cable prepared by utilizing tannery chromium-containing sludge
CN105968674A (en) * 2016-06-03 2016-09-28 安徽华电线缆集团有限公司 High-flame-retardant cable sheath pipe and production method
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CN112679818A (en) * 2020-11-24 2021-04-20 浙江亘古电缆股份有限公司 Environment-friendly cable based on recovered plant ash and electrolytic zinc acid leaching residues

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CN108206073A (en) * 2017-12-28 2018-06-26 扬州曙光电缆股份有限公司 Fire-resisting cable is pressed in a kind of novel flame-retardant A classes
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