CN106279929B - A kind of cable semi-conductive shielding material and preparation method - Google Patents
A kind of cable semi-conductive shielding material and preparation method Download PDFInfo
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- CN106279929B CN106279929B CN201610814114.9A CN201610814114A CN106279929B CN 106279929 B CN106279929 B CN 106279929B CN 201610814114 A CN201610814114 A CN 201610814114A CN 106279929 B CN106279929 B CN 106279929B
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- carbon black
- shielding material
- conductive shielding
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- 239000000463 material Substances 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000006229 carbon black Substances 0.000 claims abstract description 41
- 150000001721 carbon Chemical class 0.000 claims abstract description 18
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 11
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 8
- 239000004698 Polyethylene Substances 0.000 claims abstract description 7
- -1 polyethylene Polymers 0.000 claims abstract description 7
- 229920000573 polyethylene Polymers 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 150000002739 metals Chemical class 0.000 claims abstract description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 12
- 239000003963 antioxidant agent Substances 0.000 claims description 12
- 230000003078 antioxidant effect Effects 0.000 claims description 12
- 239000004411 aluminium Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 238000001354 calcination Methods 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 229920001038 ethylene copolymer Polymers 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 4
- BFMKFCLXZSUVPI-UHFFFAOYSA-N ethyl but-3-enoate Chemical compound CCOC(=O)CC=C BFMKFCLXZSUVPI-UHFFFAOYSA-N 0.000 claims description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 claims description 3
- 230000004913 activation Effects 0.000 claims description 3
- 239000000908 ammonium hydroxide Substances 0.000 claims description 3
- 239000003610 charcoal Substances 0.000 claims description 3
- 230000006837 decompression Effects 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 239000012065 filter cake Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910017604 nitric acid Inorganic materials 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- VETPHHXZEJAYOB-UHFFFAOYSA-N 1-n,4-n-dinaphthalen-2-ylbenzene-1,4-diamine Chemical compound C1=CC=CC2=CC(NC=3C=CC(NC=4C=C5C=CC=CC5=CC=4)=CC=3)=CC=C21 VETPHHXZEJAYOB-UHFFFAOYSA-N 0.000 claims description 2
- HCILJBJJZALOAL-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)-n'-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyl]propanehydrazide Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)NNC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 HCILJBJJZALOAL-UHFFFAOYSA-N 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 2
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 2
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 claims description 2
- GTTSNKDQDACYLV-UHFFFAOYSA-N Trihydroxybutane Chemical compound CCCC(O)(O)O GTTSNKDQDACYLV-UHFFFAOYSA-N 0.000 claims description 2
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 2
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 2
- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 claims description 2
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 claims description 2
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 claims 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 239000004202 carbamide Substances 0.000 claims 1
- 150000002148 esters Chemical class 0.000 claims 1
- 239000004020 conductor Substances 0.000 abstract description 11
- 238000009826 distribution Methods 0.000 abstract description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 abstract description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 229920003020 cross-linked polyethylene Polymers 0.000 description 3
- 239000004703 cross-linked polyethylene Substances 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000001894 space-charge-limited current method Methods 0.000 description 2
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 description 1
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 150000002978 peroxides Chemical group 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions 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
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- 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
- 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
-
- 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
Abstract
A kind of cable semi-conductive shielding material and preparation method, the raw material including following weight percent: polyethylene 40-80%, ethylene-vinyl acetate copolymer 5-20%, modified carbon black 15-40%, auxiliary agent 5-20%, crosslinking agent 0.1-1.5%.Present invention firstly provides the supported active metals on carbon black, improve the space potential distribution on carbon black, and the surface nature of carbon black can be improved to a certain extent, improve degree of scatter of the carbon black in shielding material preparation process, to prepare, surface is smooth, the small excellent shielding material with conductor contact hole.
Description
Technical field
The present invention relates to a kind of shielding material, especially a kind of mesolow fuel-resistant rubber semi-conductive shielding material for cable
The preparation method of material and this shielding material.
Background technique
The main reason for Journal of Sex Research steady in a long-term of cable is thought, influences Long Service Life both at home and abroad first is that twisted
Shelf depreciation caused by gap between conductor and insulation.It is in national standard GB/T12706-2008, IEC502 clearly stipulate that right
3.6/6kV and the above XLPE insulated power cable should have conductor and insulation shielding.In the cable, conductive surface electric field highest, such as
Fruit conductor shielding is slightly not perfect, and a possibility that discharging of dissociating is maximum.
The effective measures for preventing shelf depreciation are using semiconductive conductor shielding structure, and conductor shielding can be divided into semi-conductive tape
Two kinds of formula are extruded around packet mode and semiconductive material.Due to semi-conductive tape around packet mode can not accomplish conductor and insulation between be not it is free
Gap, effect is very unsatisfactory, in addition to seldom using in lower voltage grade, does not use substantially now.What is generallyd use now is partly to lead
Electrical materials and appliances extrude structure, it contacts with conductor, insulation secure rigid and without gap, greatly reduce the partial discharge value of cable, improve
The long-time stability and service life of cable.
Semiconductive shielding layer is in crosslinked cable especially high-pressure cross-linking cable for protecting main insulating layer not to be destroyed
Semiconductive composite material, performance directly determine the quality of crosslinked cable.According to the voltage class of application be divided into low pressure (35kV with
Under), mesohigh (66~110kV), high pressure (110~220kV), super-pressure (> 220kV) cable screen material.Crosslinked cable is partly led
The performance to crosslinked cable such as the smoothness of shield layer, the cohering of shielded layer and insulating layer, impurity in semiconductive shieldin material
It influences very big.The use of inside and outside semiconductive shielding layer main function is in the cable to keep field distribution uniform, reduces electric field strength,
Air gap on reduction conductor and insulating layer interface, raising cable starting corona discharge and the resistance to free discharge performance of cable, and
The temperature rise for reducing insulating layer to a certain extent, protects major insulation.
Shielded layer should have following performance: the tg δ of shielding and insulated compound medium wants small, exhausted to XLPE of tg δ very little etc.
For edge material, shielding layer resistivity used is appropriate, increases complex media tg δ not;The joule loss and tg δ of shielded layer
Cause adstante febre, shielded layer does not soften;Shielding and conductor answer secure rigid to contact, and contact resistance wants small between them, they it
Between contact resistance it is big, cause partial discharge, the fever of contact resistance position is damaged shielded layer, is finally likely to result in insulation breakdown;
The voltage with shielded layer is shared, shielded layer will not be caused first to puncture, and then prevent insulation breakdown.
CN101585943A discloses cable semi-conductive shielding material and its preparation side of a kind of technical field of cable
Method, the component and its content of the material are as follows: 100 parts by weight of ethene-vinyl acetate copolymer or linear low density polyethylene, charcoal
Black 10-50 parts by weight, antioxidant 0.1-5 parts by weight and crosslinking agent 0.1-5 parts by weight.The shielding material can effectively inhibit
The accumulation of insulating materials Space-charge, and the electric field threshold value of space charge injection is improved, reduce space charge limited current
(SCLC) effect that insulating materials conductivity caused by increases.
CN101891915A discloses a kind of strippable semi-conductive shielding material for insulation of cross-linked cable, by mass component
Are as follows: 45%~60% EVA material, 30%~40% carbon black, 6%~10% plasticizer, 1%~2.5% crosslinking agent,
And 0.1%~1% antioxidant;Wherein the EVA material is the adjustable copolymer of ratio of ethylene and vinyl acetate;The friendship
Connection agent is peroxide;The plasticizer include one of oil, paraffin, stearic acid, zinc stearate, polyethylene wax or it is a variety of mix
It closes;The shielding material is sequentially fed intake mixing in clean mixer by recipe ingredient, then through extruder extruding pelletization, then plus
Crosslinking agent is made;The shielding material is improved applied to 35kV and its cross-linked polyethylene insulated cable insulation semiconductive screen below
The electric property of material product is covered, eliminates the incipient scorch phenomenon in product use process, and improve the residual of insulating surface.
Summary of the invention
Carbon black is the important source material for preparing shielding material, and the property of carbon black has shielding material important influence.Wherein
The friction of charcoal night, poor carbon black distribution, polymer gel and environmental pollution are to influence light between insulating layer and semi-conductive layer
The principal element of slippage degree.Present invention firstly provides the supported active metals on carbon black, the space potential point on carbon black is improved
Cloth, and the surface nature of carbon black can be improved to a certain extent, improve dispersion of the carbon black in shielding material preparation process
Degree, to prepare, surface is smooth, the small excellent shielding material with conductor contact hole.
A kind of cable semi-conductive shielding material, the raw material including following weight percent: polyethylene 40-80%, ethylene-vinegar
Sour ethylene copolymer 5-20%, modified carbon black 15-40%, auxiliary agent 5-20%, crosslinking agent 0.1-1.5%.
The auxiliary agent is one of hexamethylene, toluene, normal octane, dimethyl carbonate, diethyl carbonate;
The modified carbon black is that carbon black is obtained by supported active metals, and the active metal is nickel and aluminium.The modification
The following steps are included: carbon black pre-processes, carbon black impregnates 24-72h in lye, soaks in nitric acid after washing the preparation method of carbon black
Stain 24-72h, is cleaned through deionized water, 150-200 DEG C of calcining and activating under inert atmosphere;By the carbon black after activation be added to containing
Ni2+And Al3+Aqueous solution in, ammonium hydroxide adjustment pH value is added to 9-10, and stirs 1-6h, decompression filters, cleaning filter cake,
110-130 DEG C of dry 1h, in 300-350 DEG C of calcining 3-10h to get the modified carbon black under inert atmosphere.
The wherein Ni2+And Al3+Molar ratio be 5-10:1, preferably 8-9:1.
The Ni2+And Al3+The molar concentration of aqueous solution be 1-3mol/L.
In terms of nickel and aluminium, nickel load mass percent is 10-20%, the load quality percentage of aluminium in the modified carbon black
It is 1-4%.
The partial size of the modified carbon black is 100-5000nm, preferably 500-1000nm.
The crosslinking agent is one of Triallyl isocyanurate, trihydroxy methyl propane trimethyl acrylate.
The cable semi-conductive shielding material further includes antioxidant, the antioxidant be antioxidant 1010, antioxidant 1024,
The mixture of any one or more of antioxidant 1035, antioxidant 264 and DNP, the dosage of the antioxidant are 0.5-
2wt%.
Specific embodiment
The technical solution of invention is described in detail combined with specific embodiments below.
The following steps are included: carbon black pre-processes, carbon black soaks the preparation method of modified carbon black described in embodiment in lye
Stain 24-72h, impregnates 24-72h in nitric acid after washing, clean through deionized water, 150-200 DEG C of calcining and activating under inert atmosphere;
Carbon black after activation is added to containing Ni2+And Al3+Aqueous solution in, ammonium hydroxide adjustment pH value is added to 9-10, and stirs 1-
6h, decompression filter, and filter cake are cleaned, in 300-350 DEG C of calcining 3-10h to get institute at 110-130 DEG C of dry 1h, inert atmosphere
State modified carbon black.
Embodiment 1
A kind of cable semi-conductive shielding material, the raw material including following weight percent: polyethylene 50%, ethyl vinyl acetate
Ethylene copolymer 20%, modified carbon black 19%, auxiliary agent 10%, crosslinking agent 0.5%, antioxidant 0.5%.
Embodiment 2
A kind of cable semi-conductive shielding material, the raw material including following weight percent: polyethylene 45%, ethyl vinyl acetate
Ethylene copolymer 25%, modified carbon black 13%, auxiliary agent 15%, crosslinking agent 1%, antioxidant 1%.
Comparative example 1
A kind of cable semi-conductive shielding material, the raw material including following weight percent: polyethylene 50%, ethyl vinyl acetate
Ethylene copolymer 20%, modified carbon black 19%, auxiliary agent 10%, crosslinking agent 0.5%, antioxidant 0.5%.
Embodiment and comparative example is tested for the property, as a result as shown in the table:
Embodiment 1 | Embodiment 2 | Comparative example 1 | |
Volume resistivity (Ω m) | 35 | 32 | 127 |
50 μm or more amount of impurities | 5 | 6 | 385 |
Wherein described 50 μm or more amount of impurities are with the average value in 1kg finished product after testing.
The present invention can be summarized with others without prejudice to the concrete form of spirit or essential characteristics of the invention.Of the invention
All embodiments can only all be considered the description of the invention rather than limit that all technology contents according to the present invention are made
Any trickle amendment or equivalent replacement out, belong within technical solution of the present invention.
Claims (7)
1. a kind of cable semi-conductive shielding material, the raw material including following weight percent: polyethylene 40-80%, ethyl vinyl acetate
Ethylene copolymer 5-20%, modified carbon black 15-40%, auxiliary agent 5-20%, crosslinking agent 0.1-1.5%;The modified carbon black is charcoal
Black to obtain by supported active metals, the active metal is nickel and aluminium;The preparation method of the modified carbon black includes following step
Rapid: carbon black pretreatment, carbon black impregnate 24-72h in lye, impregnate 24-72h after washing in nitric acid, clean through deionized water,
150-200 DEG C of calcining and activating under inert atmosphere;Carbon black after activation is added to containing Ni2+And Al3+Aqueous solution in, be added
Ammonium hydroxide adjusts pH value to 9-10, and stirs 1-6h, and decompression filters, and filter cake is cleaned, at 110-130 DEG C of dry 1h, inert atmosphere
In 300-350 DEG C of calcining 3-10h to get the modified carbon black;In terms of nickel and aluminium, nickel load quality percentage in the modified carbon black
Than being 10-20%, the load quality percentage of aluminium is 1-4%;The partial size of the modified carbon black is 100-5000nm.
2. cable semi-conductive shielding material as described in claim 1, it is characterised in that the auxiliary agent be hexamethylene, normal octane,
One of dimethyl carbonate, diethyl carbonate.
3. cable semi-conductive shielding material as described in claim 1, it is characterised in that the wherein Ni2+And Al3+Molar ratio
For 5-10:1.
4. cable semi-conductive shielding material as described in claim 1, it is characterised in that the wherein Ni2+And Al3+Molar ratio
For 8-9:1.
5. cable semi-conductive shielding material as described in claim 1, it is characterised in that the partial size of the modified carbon black is 500-
1000nm。
6. cable semi-conductive shielding material as described in claim 1, it is characterised in that the crosslinking agent is triallyl isocyanide
One of urea acid esters, trihydroxy methyl propane trimethyl acrylate.
7. cable semi-conductive shielding material as described in claim 1, it is characterised in that the cable semi-conductive shielding material is also
Including antioxidant, the antioxidant is appointing in antioxidant 1010, antioxidant 1024, antioxidant 1035, antioxidant 264 and DNP
One or more of mixtures, the dosage of the antioxidant are 0.5-2wt%.
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CN110092968B (en) * | 2019-05-06 | 2021-08-10 | 珠海中盛电线电缆有限责任公司 | High-stability waterproof cable |
CN110092969B (en) * | 2019-05-06 | 2021-08-24 | 内蒙古仁达特种电缆有限公司 | High-stability cable |
CN112980085A (en) * | 2019-12-18 | 2021-06-18 | 中广核三角洲(江苏)塑化有限公司 | Preparation method of semiconductive polyethylene shielding material |
CN111808448A (en) * | 2020-05-07 | 2020-10-23 | 安徽省克林泰迩再生资源科技有限公司 | Preparation method for loading metal oxide on surface of pyrolysis carbon black |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102097176A (en) * | 2011-03-04 | 2011-06-15 | 沈勇 | Shielded power cable |
CN102492199A (en) * | 2011-11-24 | 2012-06-13 | 无锡江南电缆有限公司 | Cable semi-conductive shielding material |
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2016
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102097176A (en) * | 2011-03-04 | 2011-06-15 | 沈勇 | Shielded power cable |
CN102492199A (en) * | 2011-11-24 | 2012-06-13 | 无锡江南电缆有限公司 | Cable semi-conductive shielding material |
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