CN104217799B - A kind of flexible compound cable and preparation method thereof - Google Patents
A kind of flexible compound cable and preparation method thereof Download PDFInfo
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- CN104217799B CN104217799B CN201410431084.4A CN201410431084A CN104217799B CN 104217799 B CN104217799 B CN 104217799B CN 201410431084 A CN201410431084 A CN 201410431084A CN 104217799 B CN104217799 B CN 104217799B
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 49
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000003063 flame retardant Substances 0.000 claims abstract description 74
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 47
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 46
- -1 compound rare-earth Chemical class 0.000 claims abstract description 36
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 35
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 33
- 238000012856 packing Methods 0.000 claims abstract description 30
- 230000002195 synergetic effect Effects 0.000 claims abstract description 28
- 239000004020 conductor Substances 0.000 claims abstract description 25
- 229920006124 polyolefin elastomer Polymers 0.000 claims abstract description 23
- 239000012745 toughening agent Substances 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 21
- 230000004888 barrier function Effects 0.000 claims abstract description 19
- 229920005989 resin Polymers 0.000 claims abstract description 19
- 239000011347 resin Substances 0.000 claims abstract description 19
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 18
- 229920006380 polyphenylene oxide Polymers 0.000 claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 229920000098 polyolefin Polymers 0.000 claims abstract description 6
- 239000000779 smoke Substances 0.000 claims abstract description 6
- 239000010410 layer Substances 0.000 claims description 25
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 11
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 11
- 229910052772 Samarium Inorganic materials 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- 229910052706 scandium Inorganic materials 0.000 claims description 11
- 229910052727 yttrium Inorganic materials 0.000 claims description 11
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 10
- 150000008301 phosphite esters Chemical class 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 10
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 claims description 9
- AFFLGGQVNFXPEV-UHFFFAOYSA-N 1-decene Chemical compound CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 claims description 6
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 claims description 6
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 5
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000007334 copolymerization reaction Methods 0.000 claims description 5
- 238000005469 granulation Methods 0.000 claims description 5
- 230000003179 granulation Effects 0.000 claims description 5
- 239000012796 inorganic flame retardant Substances 0.000 claims description 5
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 5
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 5
- 239000000347 magnesium hydroxide Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000011247 coating layer Substances 0.000 claims description 4
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 claims description 4
- 239000004711 α-olefin Substances 0.000 claims description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 3
- 239000005977 Ethylene Substances 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical group O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 3
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 claims description 3
- 239000012802 nanoclay Substances 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims 1
- 239000007921 spray Substances 0.000 abstract description 4
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- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000003094 microcapsule Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The invention discloses a kind of flexible compound cable, mainly include cable core, the outside of cable core is sequentially coated with coat and oversheath, cable core is made up of conductor and insulating barrier, wherein: coat comprises polyphenylene oxide resin, polyolefin elastomer, packing type fire retardant, synergistic flame retardant, toughener, antioxidant and compound rare-earth component, insulating barrier is crosslinked polyetylene insulated layer, and the material of oversheath is halogen-free and low-smoke flame-retardant polyolefin；The present invention also designs the preparation method of a kind of flexible compound cable, one layer of crosslinked polyetylene insulated layer is extruded thus shape cable core by conductor pre-heating and at conductive surface, cable core is cooled to room temperature, spray one layer of coat on cable core surface after the cooling period, on the periphery of coat, overlap one layer of oversheath after drying prepare finished cable；This cable bend flexibility is good, good flame resistance, high temperature resistant, low temperature resistant, makes simple, and this flexible compound cable is easy to lay, and installs management, can reach excellent electrical property and service life is long during use.
Description
Technical field
The present invention relates to a kind of cable and preparation method thereof, be specifically related to a kind of flexible compound cable and preparation method thereof.
Background technology
It is known that, cable is the basis of data communication, and no matter power engineering, remotely control, architectural engineering are at work progress or after coming into operation, and electric power system is particularly important, cable is electric power system carrier, and strong power system, weak electricity system control by power cable, control cable respectively.
Traditional cable material, mainly it is mixed by resin material, inserts, plasticizer, age resistor, fire retardant, antioxidant, formula material focuses primarily upon some conventional compositions, thus cause cable technology index the highest or high in cost of production problem, such as specific insulation are on the low side, high temperature resistant, low temperature resistant, anti-flammability, insulating properties etc. can not meet the requirement to insulation-grade protective cover material more high electrical performance of the cable producer.Traditional production technology is also had to there is also problems with: processing capacity is big, and production cost is high；Being unfavorable for the assembling of finished product, the production cycle is long；Volume is relatively big, waste material, electric power, space, cable testing bridge, pipeline and production, the labour force laid.
Recently, the cable of composite is increasingly paid close attention to by people, and a purposes of composite cable is as the enhancing mechanism in the bare cable line of transmission of electricity on the ground.Although the naked transmission of electricity cable including aluminum matrix composite wire is known, but some are applied, there is the lasting requirement for obtaining the cable character improved.Exploitation one bending flexibility is good, and good flame resistance, high temperature resistant, low temperature resistant, making simple flexible compound cable is the problem that art technology worker needs solution badly.
Summary of the invention
The technical problem to be solved is, the shortcoming overcoming prior art, there is provided one bending flexibility good, good flame resistance, high temperature resistant, low temperature resistant, make simple flexible compound cable and preparation method thereof, this flexible compound cable is easy to lay, and installs management, can reach excellent electrical property and service life is long during use.
In order to solve above technical problem, the present invention provides a kind of flexible compound cable, mainly includes cable core, and the outside of cable core is sequentially coated with coaxial coat and oversheath, and cable core is made up of, wherein the insulating barrier outside conductor and conductor:
Coat comprises following components in terms of mass fraction: polyphenylene oxide resin: 40-45 part, polyolefin elastomer: 20-25 part, packing type fire retardant: 10-16 part, synergistic flame retardant: 12-18 part, toughener: 8-15 part, antioxidant: 0.1-0.5 part, compound rare-earth: 0.5-0.8 part；
Described polyolefin elastomer is to use ethylene, butylene or carried out, with one or more alpha-olefins with 3-12 carbon atom, the material that random copolymerization obtains by ethylene, octene, and described alpha-olefin is one or more in propylene, 1-butylene, 1-hexene, 1-octene, 1-decene, 1-laurylene etc. and uses；Described packing type fire retardant is the mixture of aluminium hydroxide and Magnesium Hydroxide Inorganic Flame Retardant, and the particle diameter of packing type fire retardant is 2-4 μm；Described synergistic flame retardant is montmorillonite, kieselguhr, nanoclay or its mixture, and the particle diameter of synergistic flame retardant is 5-7 μm；Described toughener is the one in polyamide, poly-Azelaic Acid acid anhydride or polyurethane；Described antioxidant is to select polynary hindered phenol type antioxidant and phosphite ester kind antioxidant according to polynary hindered phenol type antioxidant for compound antioxidant: phosphite ester kind antioxidant ratio is that the part by weight of 1:2 is compound to be made；
Described compound rare-earth comprises following component by weight percentage: La:30-33%, Y:18-20%, Sc:16-18%, Gd:9-11%, Sm:8-10%, Pr:13-15%, above each component sum is 100%；
Possibly together with the compound rare-earth of weight fraction meter 0.5-0.8 part in the coat of the present invention, owing to the metallic atomic radius of above rare earth element is big and rare earth has higher activity, it is easy to fill up the space of storeroom, simultaneously, rare earth element is easily and the element compounds such as oxygen, sulfur generates the compound that fusing point is high, being added in of compound rare-earth improves dispersibility and the compatibility preparing coat material to a certain extent, makes the material mix homogeneously of coat also improve the anti-flammability of coat material；
Insulating barrier is crosslinked polyetylene insulated layer, and the material of oversheath is halogen-free and low-smoke flame-retardant polyolefin.
The technical scheme that the present invention limits further is:
In foregoing soft composite cable, in flexible compound cable, coat comprises following components in terms of mass fraction: polyphenylene oxide resin: 45 parts, polyolefin elastomer: 20 parts, packing type fire retardant: 13 parts, synergistic flame retardant: 12 parts, toughener: 9 parts, antioxidant: 0.5 part, compound rare-earth: 0.5 part；
Compound rare-earth comprises following component by weight percentage: La:32%, Y:19%, Sc:16%, Gd:9%, Sm:10%, Pr:14%.
In foregoing soft composite cable, in flexible compound cable, coat comprises following components in terms of mass fraction: polyphenylene oxide resin: 40 parts, polyolefin elastomer: 25 parts, packing type fire retardant: 11 parts, synergistic flame retardant: 15 parts, toughener: 8 parts, antioxidant: 0.4 part, compound rare-earth: 0.6 part；
Compound rare-earth comprises following component by weight percentage: La:33%, Y:18%, Sc:18%, Gd:10%, Sm:8%, Pr:13%.
In foregoing soft composite cable, in flexible compound cable, coat comprises following components in terms of mass fraction: polyphenylene oxide resin: 42 parts, polyolefin elastomer: 22 parts, packing type fire retardant: 14 parts, synergistic flame retardant: 13 parts, toughener: 8 parts, antioxidant: 0.3 part, compound rare-earth: 0.7 part；
Compound rare-earth comprises following component by weight percentage: La:30%, Y:20%, Sc:17%, Gd:11%, Sm:9%, Pr:13%.
The present invention have also been devised the preparation method of above-mentioned flexible compound cable, and concrete operations are as follows:
(1) carry out conductor preheating at 50-65 DEG C and extrude one layer of crosslinked polyetylene insulated layer on the surface of conductor thus form the thickness cable core at 0.07-0.09mm:
(2) cable core in step (1) is cooled down, first to carrying out air cooling, with the rate of cooling of 2-4 DEG C per second, insulating barrier is cooled to 35-40 DEG C, is slowly cooled to room temperature the most again；
(3) spraying one layer of coat on cable core surface after the cooling period, coating to be coated is dried, overlaps one layer of oversheath and prepare finished cable on the periphery of coat.
The technical scheme that the present invention limits further is:
In the preparation method of foregoing soft composite cable, in step (3) when to cable core surface spraying coat, first the polyphenylene oxide resin in coat component, polyolefin elastomer, packing type fire retardant, synergistic flame retardant, toughener, antioxidant and compound rare-earth are stirred in high-speed mixer, extrude through double screw extruder under the temperature range of 150-160 DEG C again, water stretching and granulation moisture are dried, for the coat of flexible compound cable.
The invention has the beneficial effects as follows:
In the present invention when the making of cable core, being applied by insulating barrier and form cable core on conductor by the way of extruding, such cable core volume is little, saves material, and low cost, the tack between edge body and conductor is good；
The coat of the present invention adds polyolefin elastomer, microcapsule structure is formed with elastomer cladding fire retardant, dispersed with make in polyphenylene oxide resin, improve biphase affinity, the stress decreasing interface is concentrated, thus improve the combination property (such as mechanical performance and fire resistance etc.) of system, simultaneously, microcapsule structure is formed with elastomer cladding fire retardant, fire retardant is made to reach maximally effective combination at fire-retardant aspect, insulation resistance and the elongation at break of system is greatly reduced compared to the addition of conventional fire retardant, the present invention adds elastomer, the hot strength change of fire retardant is little, and the goods toughness height produced, resistance to low temperature is good, environmental stress cracking resistance is also improved；
The present invention use packing type fire retardant and synergistic flame retardant combine, when coat material mixes, packing type fire retardant is mixed together with synergistic flame retardant and makes packing type fire retardant own mix homogeneously, is completely embedded, simultaneously, make other material and fire retardant mix homogeneously, be connected tightr, considerably improving the balance between the processing fluidity of product, intensity, heat resistance and anti-flammability, flame retardant effect significantly improves；
The flexible compound cable bend flexibility of the present invention is good, good flame resistance, high temperature resistant, low temperature resistant, makes simple, with low cost, and this flexible compound cable is easy to lay, and installs management, can reach excellent electrical property and service life is long during use.
Accompanying drawing explanation
Fig. 1 is the structural representation of flexible compound exemplary fiber optic cable of the present invention；
In figure: 1-conductor, 2-insulating barrier, 3-coat, 4-oversheath.
Detailed description of the invention
Embodiment
1
A kind of flexible compound cable that the present embodiment provides, structure is as it is shown in figure 1, mainly include cable core, and the outside of cable core is sequentially coated with coaxial coat 3 and oversheath 4, and cable core is made up of, wherein the insulating barrier 2 outside conductor 1 and conductor 1:
Coat 3 comprises following components in terms of mass fraction: polyphenylene oxide resin: 45 parts, polyolefin elastomer: 20 parts, packing type fire retardant: 13 parts, synergistic flame retardant: 12 parts, toughener: 9 parts, antioxidant: 0.5 part, compound rare-earth: 0.5 part；
Compound rare-earth comprises following component by weight percentage: La:32%, Y:19%, Sc:16%, Gd:9%, Sm:10%, Pr:14%,
Polyolefin elastomer is to use ethylene and 1-hexene to carry out the material that random copolymerization obtains, and packing type fire retardant is the mixture of aluminium hydroxide and Magnesium Hydroxide Inorganic Flame Retardant, and the particle diameter of packing type fire retardant is 2 μm；Synergistic flame retardant is montmorillonite, and the particle diameter of synergistic flame retardant is 7 μm；Toughener is polyamide；Antioxidant is for selecting polynary hindered phenol type antioxidant and phosphite ester kind antioxidant according to polynary hindered phenol type antioxidant for compound antioxidant: phosphite ester kind antioxidant ratio is that the part by weight of 1:2 is compound to be made；
Insulating barrier 2 is crosslinked polyetylene insulated layer, and the material of oversheath 4 is halogen-free and low-smoke flame-retardant polyolefin.
The preparation method of above-mentioned flexible compound cable, concrete operations are as follows:
(1) carry out conductor preheating at 55 DEG C and extrude one layer of crosslinked polyetylene insulated layer on the surface of conductor thus form the thickness cable core at 0.08mm:
(2) cable core in step (1) is cooled down, first to carrying out air cooling, with the rate of cooling of 2 DEG C per second, insulating barrier is cooled to 35 DEG C, is slowly cooled to room temperature the most again；
(3) spraying one layer of coat on cable core surface after the cooling period, coating to be coated is dried, overlaps one layer of oversheath and prepare finished cable on the periphery of coat；
When spray coating layer, first the polyphenylene oxide resin in coat component, polyolefin elastomer, packing type fire retardant, synergistic flame retardant, toughener, antioxidant and compound rare-earth are stirred in high-speed mixer, extrude through double screw extruder under the temperature range of 150 DEG C again, water stretching and granulation moisture are dried, for the coat of flexible compound cable, spray the most again.
Embodiment
2
A kind of flexible compound cable that the present embodiment provides, mainly includes cable core, and the outside of cable core is sequentially coated with coaxial coat 3 and oversheath 4, and cable core is made up of, wherein the insulating barrier 2 outside conductor 1 and conductor 1:
Coat 3 comprises following components in terms of mass fraction: polyphenylene oxide resin: 40 parts, polyolefin elastomer: 25 parts, packing type fire retardant: 11 parts, synergistic flame retardant: 15 parts, toughener: 8 parts, antioxidant: 0.4 part, compound rare-earth: 0.6 part；
Compound rare-earth comprises following component by weight percentage: La:33%, Y:18%, Sc:18%, Gd:10%, Sm:8%, Pr:13%；
Polyolefin elastomer is to use octene and 1-octene to carry out the material that random copolymerization obtains, and packing type fire retardant is the mixture of aluminium hydroxide and Magnesium Hydroxide Inorganic Flame Retardant, and the particle diameter of packing type fire retardant is 4 μm；Synergistic flame retardant is nanoclay, and the particle diameter of synergistic flame retardant is 6 μm；Toughener is poly-Azelaic Acid acid anhydride；Antioxidant is for selecting polynary hindered phenol type antioxidant and phosphite ester kind antioxidant according to polynary hindered phenol type antioxidant for compound antioxidant: phosphite ester kind antioxidant ratio is that the part by weight of 1:2 is compound to be made；
Insulating barrier 2 is crosslinked polyetylene insulated layer, and the material of oversheath 4 is halogen-free and low-smoke flame-retardant polyolefin.
The preparation method of above-mentioned flexible compound cable, concrete operations are as follows:
(1) carry out conductor preheating at 65 DEG C and extrude one layer of crosslinked polyetylene insulated layer on the surface of conductor thus form the thickness cable core at 0.09mm:
(2) cable core in step (1) is cooled down, first to carrying out air cooling, with the rate of cooling of 3 DEG C per second, insulating barrier is cooled to 40 DEG C, is slowly cooled to room temperature the most again；
(3) spraying one layer of coat on cable core surface after the cooling period, coating to be coated is dried, overlaps one layer of oversheath and prepare finished cable on the periphery of coat；
When spray coating layer, first the polyphenylene oxide resin in coat component, polyolefin elastomer, packing type fire retardant, synergistic flame retardant, toughener, antioxidant and compound rare-earth are stirred in high-speed mixer, extrude through double screw extruder under the temperature range of 160 DEG C again, water stretching and granulation moisture are dried, for the coat of flexible compound cable, spray the most again.
Embodiment
3
A kind of flexible compound cable that the present embodiment provides, mainly includes cable core, and the outside of cable core is sequentially coated with coaxial coat 3 and oversheath 4, and cable core is made up of, wherein the insulating barrier 2 outside conductor 1 and conductor 1:
Coat 3 comprises following components in terms of mass fraction: polyphenylene oxide resin: 42 parts, polyolefin elastomer: 22 parts, packing type fire retardant: 14 parts, synergistic flame retardant: 13 parts, toughener: 8 parts, antioxidant: 0.3 part, compound rare-earth: 0.7 part；
Compound rare-earth comprises following component by weight percentage: La:30%, Y:20%, Sc:17%, Gd:11%, Sm:9%, Pr:13%；
Polyolefin elastomer is to use butylene and 1-decene to carry out the material that random copolymerization obtains, and packing type fire retardant is the mixture of aluminium hydroxide and Magnesium Hydroxide Inorganic Flame Retardant, and the particle diameter of packing type fire retardant is 3 μm；Synergistic flame retardant is kieselguhr, and the particle diameter of synergistic flame retardant is 5 μm；Toughener is polyurethane；Antioxidant is for selecting polynary hindered phenol type antioxidant and phosphite ester kind antioxidant according to polynary hindered phenol type antioxidant for compound antioxidant: phosphite ester kind antioxidant ratio is that the part by weight of 1:2 is compound to be made；
Insulating barrier 2 is crosslinked polyetylene insulated layer, and the material of oversheath 4 is halogen-free and low-smoke flame-retardant polyolefin.
The preparation method of above-mentioned flexible compound cable, concrete operations are as follows:
(1) carry out conductor preheating at 50 DEG C and extrude one layer of crosslinked polyetylene insulated layer on the surface of conductor thus form the thickness cable core at 0.07mm:
(2) cable core in step (1) is cooled down, first to carrying out air cooling, with the rate of cooling of 4 DEG C per second, insulating barrier is cooled to 38 DEG C, is slowly cooled to room temperature the most again；
(3) spraying one layer of coat on cable core surface after the cooling period, coating to be coated is dried, overlaps one layer of oversheath and prepare finished cable on the periphery of coat；
When spray coating layer, first the polyphenylene oxide resin in coat component, polyolefin elastomer, packing type fire retardant, synergistic flame retardant, toughener, antioxidant and compound rare-earth are stirred in high-speed mixer, extrude through double screw extruder under the temperature range of 155 DEG C again, water stretching and granulation moisture are dried, for the coat of flexible compound cable, spray the most again.
In addition to the implementation, the present invention can also have other embodiments.The technical scheme that all employing equivalents or equivalent transformation are formed, all falls within the protection domain of application claims.
Claims (6)
1. a flexible compound cable, it is characterised in that: mainly include that cable core, the outside of described cable core are sequentially coated with coaxial
Coat and oversheath, described cable core is made up of, wherein the insulating barrier outside conductor and conductor:
Described coat comprises following components in terms of mass fraction: polyphenylene oxide resin: 40-45 part, polyolefin elastomer: 20-25
Part, packing type fire retardant: 10-16 part, synergistic flame retardant: 12-18 part, toughener: 8-15 part, antioxidant: 0.1-0.5
Part, compound rare-earth: 0.5-0.8 part；
Described polyolefin elastomer uses ethylene and butylene or octene and one or more alpha-olefins with 3-12 carbon atom to carry out
Random copolymerization and the material that obtains, described alpha-olefin is propylene, 1-butylene, 1-hexene, 1-octene, 1-decene, 1-laurylene
In Deng one or more and use；Described packing type fire retardant is the mixture of aluminium hydroxide and Magnesium Hydroxide Inorganic Flame Retardant,
The particle diameter of packing type fire retardant is 2-4 μm；Described synergistic flame retardant is montmorillonite, kieselguhr, nanoclay or its mixture,
The particle diameter of synergistic flame retardant is 5-7 μm；Described toughener is the one in polyamide, poly-Azelaic Acid acid anhydride or polyurethane；Described
Antioxidant selects polynary hindered phenol type antioxidant and phosphite ester kind antioxidant according to polynary hindered phenol type antioxygen for compound antioxidant
Agent: phosphite ester kind antioxidant ratio is that the part by weight of 1:2 is compound to be made；
Described compound rare-earth comprises following component by weight percentage: La:30-33%, Y:18-20%, Sc:16-18%, Gd:
9-11%, Sm:8-10%, Pr:13-15%, above each component sum is 100%；
Described insulating barrier is crosslinked polyetylene insulated layer, and the material of described oversheath is halogen-free and low-smoke flame-retardant polyolefin.
Flexible compound cable the most according to claim 1, it is characterised in that: in described flexible compound cable, coat is with matter
Amount number meter comprises following components: polyphenylene oxide resin: 45 parts, polyolefin elastomer: 20 parts, packing type fire retardant: 13 parts,
Synergistic flame retardant: 12 parts, toughener: 9 parts, antioxidant: 0.5 part, compound rare-earth: 0.5 part；
Described compound rare-earth comprises following component by weight percentage: La:32%, Y:19%, Sc:16%, Gd:9%, Sm:
10%, Pr:14%.
Flexible compound cable the most according to claim 1, it is characterised in that: in described flexible compound cable, coat is with matter
Amount number meter comprises following components: polyphenylene oxide resin: 40 parts, polyolefin elastomer: 25 parts, packing type fire retardant: 11 parts,
Synergistic flame retardant: 15 parts, toughener: 8 parts, antioxidant: 0.4 part, compound rare-earth: 0.6 part；
Described compound rare-earth comprises following component by weight percentage: La:33%, Y:18%, Sc:18%, Gd:10%, Sm:
8%, Pr:13%.
Flexible compound cable the most according to claim 1, it is characterised in that: in described flexible compound cable, coat is with matter
Amount number meter comprises following components: polyphenylene oxide resin: 42 parts, polyolefin elastomer: 22 parts, packing type fire retardant: 14 parts,
Synergistic flame retardant: 13 parts, toughener: 8 parts, antioxidant: 0.3 part, compound rare-earth: 0.7 part；
Described compound rare-earth comprises following component by weight percentage: La:30%, Y:20%, Sc:17%, Gd:11%, Sm:
9%, Pr:13%.
5. the preparation method of the flexible compound cable prepared in claim 1-4 described in any claim, it is characterised in that
Concrete operations are as follows:
(1) carry out conductor preheating at 50-65 DEG C and extrude one layer of crosslinked polyetylene insulated layer on the surface of conductor thus formed
Thickness is at the cable core of 0.07-0.09mm:
(2) cable core in step (1) is cooled down, first to carrying out air cooling, will with the rate of cooling of 2-4 DEG C per second
Insulating barrier is cooled to 35-40 DEG C, is slowly cooled to room temperature the most again；
(3) spraying one layer of coat on cable core surface after the cooling period, coating to be coated is dried, overlaps one on the periphery of coat
Layer oversheath prepares finished cable.
The preparation method of flexible compound cable the most according to claim 5, it is characterised in that to cable in step (3)
During wicking surface spray coating layer, first by the polyphenylene oxide resin in coat component, polyolefin elastomer, packing type fire retardant, association
Effect fire retardant, toughener, antioxidant and compound rare-earth stir in high-speed mixer, then the humidity province at 150-160 DEG C
Extruding through double screw extruder under between, water stretching and granulation moisture are dried, for the coat of flexible compound cable.
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| CN105086327A (en) * | 2015-08-27 | 2015-11-25 | 无锡华虹信息科技有限公司 | Manufacturing technology of shielded cable capable of working for long time at temperature of 95 DEG C |
| CN105218976A (en) * | 2015-11-11 | 2016-01-06 | 江苏宇恒电气有限公司 | A kind of flexible flame-retardant cable and preparation method thereof |
| CN105237917A (en) * | 2015-11-13 | 2016-01-13 | 江苏宇恒电气有限公司 | Anti-corrosion cable and preparation method thereof |
| CN105931728B (en) * | 2016-07-14 | 2018-07-20 | 四川鸿鑫国泰电缆有限责任公司 | A kind of novel photovoltaic cable protective sleeve and preparation method thereof |
| CN106380826B (en) * | 2016-09-12 | 2018-08-31 | 国家电网公司 | A kind of cable wrapping layer |
| CN108610690A (en) * | 2016-12-05 | 2018-10-02 | 赵中华 | A method of it is fire-retardant for electric wire |
| CN107603202A (en) * | 2017-09-30 | 2018-01-19 | 南京晟强橡塑有限公司 | A kind of rubber pocket former polyurethane rubber bolster |
| CN112309626A (en) * | 2020-07-07 | 2021-02-02 | 临沂启阳电缆有限公司 | Composite cable and manufacturing method thereof |
| CN116435028B (en) * | 2023-04-25 | 2023-11-17 | 云南巨力电缆股份有限公司 | Long-life low-smoke flame-retardant electric wire and preparation process thereof |
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