CN106366419B - A kind of XLPE cable insulating materials - Google Patents
A kind of XLPE cable insulating materials Download PDFInfo
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- CN106366419B CN106366419B CN201610817245.2A CN201610817245A CN106366419B CN 106366419 B CN106366419 B CN 106366419B CN 201610817245 A CN201610817245 A CN 201610817245A CN 106366419 B CN106366419 B CN 106366419B
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- antioxidant
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- xlpe cable
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- 239000011810 insulating material Substances 0.000 title claims abstract description 19
- 229920003020 cross-linked polyethylene Polymers 0.000 title claims abstract description 17
- 239000004703 cross-linked polyethylene Substances 0.000 title claims abstract description 17
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 19
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 17
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 17
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 12
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 12
- 239000003381 stabilizer Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 9
- -1 stirs 2-3h Substances 0.000 claims abstract description 9
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000006229 carbon black Substances 0.000 claims abstract description 8
- 239000002904 solvent Substances 0.000 claims abstract description 8
- 239000002808 molecular sieve Substances 0.000 claims abstract description 7
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000243 solution Substances 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims abstract description 5
- 238000005406 washing Methods 0.000 claims abstract description 5
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 239000002071 nanotube Substances 0.000 claims abstract description 4
- 238000010792 warming Methods 0.000 claims abstract description 4
- 239000011259 mixed solution Substances 0.000 claims abstract description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000002105 nanoparticle Substances 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
- 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
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical group [Zn] HCHKCACWOHOZIP-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 group 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
- 239000000203 mixture Substances 0.000 claims description 2
- 239000003208 petroleum Substances 0.000 claims description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- DCXXMTOCNZCJGO-UHFFFAOYSA-N tristearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 claims 2
- 229910000863 Ferronickel Inorganic materials 0.000 claims 1
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- 150000001335 aliphatic alkanes Chemical class 0.000 claims 1
- 235000013339 cereals Nutrition 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 11
- 238000009825 accumulation Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 230000005684 electric field Effects 0.000 abstract description 4
- 238000001894 space-charge-limited current method Methods 0.000 abstract description 4
- 238000003756 stirring Methods 0.000 abstract description 3
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 239000012774 insulation material Substances 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 description 7
- 239000004698 Polyethylene Substances 0.000 description 6
- 229920000573 polyethylene Polymers 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000004716 Ethylene/acrylic acid copolymer Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000013590 bulk material Substances 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000003837 high-temperature calcination Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910000480 nickel oxide Inorganic materials 0.000 description 2
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 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 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-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
- 229940123457 Free radical scavenger Drugs 0.000 description 1
- 229910000708 MFe2O4 Inorganic materials 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 235000014443 Pyrus communis Nutrition 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910010252 TiO3 Inorganic materials 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000000549 coloured material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000005516 deep trap Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000002305 electric material Substances 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- XHQSLVIGPHXVAK-UHFFFAOYSA-K iron(3+);octadecanoate Chemical compound [Fe+3].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XHQSLVIGPHXVAK-UHFFFAOYSA-K 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000006259 organic additive Substances 0.000 description 1
- 150000002927 oxygen compounds Chemical class 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
-
- 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
- H01B3/30—Insulators 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
- H01B3/44—Insulators 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
- H01B3/441—Insulators 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
Abstract
A kind of XLPE cable insulating materials, comprises the following components in parts by weight: 80-100 parts of low density polyethylene (LDPE), 0.5-2 parts of ferrite nanometer particle, 10-20 parts of carbon black, 0.1-3 parts of antioxidant, 1-3 parts of stabilizer, 10-20 parts of solvent；Wherein the ferrite nanometer particle is prepared in accordance with the following methods: preparing Ni2+、Fe3+Molar ratio is the mixed solution of 1-3:1, and molecular sieve is added, and stirs 12-36h at normal temperature, through filtering and washing, is put into Muffle furnace after drying and is warming up to 800-1100 DEG C of roasting 1-6h；Then the product after roasting is placed in hydrofluoric acid solution, stirs 2-3h, solid sample obtains Ni ferrite nanotube after being filtered, washed, being dried.Cable insulation material of the present invention can effectively inhibit the accumulation of insulating materials Space-charge, and improve the electric field threshold value of space charge injection, reduce the effect that insulating materials conductivity caused by space charge limited current (SCLC) increases.
Description
Technical field
The present invention relates to a kind of XLPE cable insulating materials and preparation method thereof, especially a kind of addition modified nanoparticles
XLPE cable insulating materials.
Background technique
As the continuous development of electric system is grown, network system is increasingly sophisticated, and AC transmission system exposes some solid
The transmission of electricity of the shortcomings that having, especially telecommunicate is limited by synchronous operation stability, in this case, direct current transportation skill
Art attracts people's attention again.The especially development of the voltage source converter of turn-off device and PWM technology avoids XLPE electricity
The polarity upset of cable promotes the development of flexible DC transmission.Flexible DC transmission technology (HVDC Light technology) has
Controllability is high, design and construction facilitate environmental protection, take up little area and converter station between without the advantages that communicating, renewable resource it is grid-connected,
Distributed generation grid-connected, island power supply, urban distribution network power supply etc. have a clear superiority.Compared with ac cable, due to exhausted
The DC electrical intensity of edge medium is higher than alternating-current electric intensity, and direct current cables transmission line capability is that ac cable is defeated under identical size
2 times of capacitance convey wire rod used in identical power DC cables is only wire rod used in ac cable 1/2~2/3.
Currently, in the world direct current cables be used successfully to comercial operation it is best-run be ABB AB cable product, highest
Voltage class reaches 320kV.The insulated cable general situation of development of other countries is exhausted using polyethylene approximately as: French Nexans company
Edge, the voltage class of cable are 500kV, no operating experience；The Pirelli company of Italy is using crosslinked polyetylene insulated, electricity
The voltage class of cable is 250kV, is only used for voltage commutation system, no operating experience；French Sagem company uses LDPE for cable
Insulation, voltage class 400kV participate in the direct current transportation project research of Electricite De France；Japanese Viscas company is using friendship
Join polyethylene insulation, voltage rating 500kV, no comercial operation experience.
There are a large amount of localized modes inside crosslinked polyethylene, will cause inner space electricity when as high-voltage DC cable insulating
Lotus gathers, electric field distortion, accelerates the voltage ageing of insulating materials, shortens the service life of insulating materials, especially when in insulation
Heteropolarity space charge accumulation may cause the breakdown of insulating materials when more, make failure of insulation.Cross-linking polyethylene materials
When aging occurs, structure can change, such as chemical bond rupture, medium micropore increase or grow dendritic structure, these are lacked
Falling into increases the trap number in medium, and space charge accumulation can be caused under the action of electric field.
For XLPE direct current cables as the indispensable a part of direct current transportation, space charge is always to restrict direct current cables hair
The critical issue of exhibition.In order to better solve problems with space charge, many scholars for influence distribution of space charge it is different because
Element has conducted extensive research.Conventional inhibition space charge method includes by admixed with additives, blending, grafting, copolymerization etc..Add
Add agent type to have very much, can substantially be divided into inorganic additive, organic additive, nucleating agent, free radical scavenger, heat resistanceheat resistant/big
Gas aging agent etc..Such as spherulite size can be effectively reduced in three sugar pear alcohol of addition in oligomerisation of ethylene (LDPE), reduce grain boundary defects
Formation；When addition haloflex (CPE) or ethylene/acrylic acid copolymer (EAA) mass fraction is about 1% in LDPE,
Space charge effect and volume resistivity can be effectively reduced, improve the starting voltage of direct current precompressed short circuit branch；It is added 1%
Ba-TiO3Into polyethylene, the space charge effect in polyethylene can effectively improve, improve the breakdown strength of direct current precompressed short circuit
With dc breakdown intensity；1% or so voltage stabilizer is added into polyethylene, can reduce in ageing process macromolecular from
By the generation of base, the generation of deep trap is reduced, improves the insulation life of polymer.
Summary of the invention
Ferrite MFe2O4(M is divalent metal element) is a kind of important inorganic non-metallic material, has high-melting-point, height
Mechanical strength, low-k and excellent optical property, in catalysis, electrochemistry, magnetic heating performance, industrial refractory and missile guidance
The fields such as system windows extensive application.In recent years, ferrite is as enamel, the coloured material of ceramics, gas sensitive, magnetic
Property the application such as absorbing material, catalysis material have been reported that.The traditional preparation methods of such material are high-temperature calcination mixed metal oxygen
Compound or hydroxide, but due to the generation of agglomeration, products therefrom partial size is larger and is unevenly distributed, and limits it further
Application.Ferritic metal ion will be formed using hard template method and is adsorbed onto bulk material surface or duct inner wall first, so
Afterwards by serial physical chemical process, ferrite is formed in bulk material surface, then hard mould agent is removed again, thus may be used
To obtain the ferrite compared with Large ratio surface and specific cellular structure, so as to avoid Homogeneous synthesis and high-temperature calcination process institute
The problem that bring particle size is larger, specific surface area is lower.
Present invention firstly provides by ferrite nanometer particle be applied to cable insulation material, especially XLPE insulator in,
Its main feature is that ferrite nano particles are modified by surface, it is filled into crosslinked polyethylene, space charge is fettered, to extend electricity
The service life of power cable reaches 1-5 times.It has the advantages that technologically advanced, safety and stability.
A kind of XLPE cable insulating materials comprising ferrite nanometer particle, comprises the following components in parts by weight:
80-100 parts of low density polyethylene (LDPE), 0.5-2 parts of ferrite nanometer particle, 10-20 parts of carbon black, 0.1-3 parts of antioxidant,
1-3 parts of stabilizer, 10-20 parts of solvent.
The solvent is one of hexamethylene, toluene, normal octane, dimethyl carbonate, diethyl carbonate；The stabilizer
It is one of zinc petroleum sulfonate, ferric stearate, zinc stearate or a variety of；The antioxidant is antioxidant 1010, antioxidant
1024, the mixture of any one or more of antioxidant 1035, antioxidant 264 and DNP.
The ferrite nanometer particle is prepared in accordance with the following methods: preparing Ni2+、Fe3+Molar ratio is that the mixing of 1-3:1 is molten
Liquid, and molecular sieve is added, 12-36h is stirred at normal temperature, through filtering and washing, is put into Muffle furnace after drying and is warming up to 800-
1100 DEG C of roasting 1-6h；Then the product after roasting is placed in hydrofluoric acid solution, stirs 2-3h, solid sample is filtered, washed
Ni ferrite nanotube is obtained after washing, drying.
The molecular sieve is preferably MCM, ZSM Series Molecules sieve, more preferably MCM-41 or ZSM-15.
It is converted with iron oxide and nickel oxide, the molecular sieve quality is 1-10 times of iron oxide and nickel oxide quality sum,
Preferably 3-6 times.
The preparation method of XLPE cable insulating materials comprising ferrite nanometer particle, comprising the following steps: in proportion will
Linear low density polyethylene, antioxidant and carbon black are put into mixer together and are kneaded 30-50min in 100-120 DEG C；It will crosslinking
Agent carries out heat preservation mixing after mixer is added, and obtains high voltage direct current cable and partly leads shielding electric material, the heat preservation mixing refers to
120-135 DEG C at a temperature of be kneaded 20-30min.
The present invention effectively inhibits the accumulation of insulating materials Space-charge, and improves the electric field threshold of space charge injection
Value reduces the effect that insulating materials conductivity caused by space charge limited current (SCLC) increases.
Specific embodiment
The technical solution of invention is described in detail combined with specific embodiments below.
Ferrite nanometer particle described in embodiment is prepared in accordance with the following methods: preparing Ni2+、Fe3+Molar ratio is 2:1's
Mixed solution, and molecular sieve is added, 12h is stirred at normal temperature, through filtering and washing, is put into Muffle furnace after drying and is warming up to 800
DEG C roasting 6h；Then the product after roasting is placed in hydrofluoric acid solution, 2h is stirred, after solid sample is filtered, washed, is dried
Obtain Ni ferrite nanotube.
Embodiment 1
80 parts of low density polyethylene (LDPE), 0.5 part of ferrite nanometer particle, 10 parts of carbon black, 0.5 part of antioxidant, 2 parts of stabilizer,
10 parts of solvent.
Embodiment 2
It is 100 parts of low density polyethylene (LDPE), 1 part of ferrite nanometer particle, 10 parts of carbon black, 0.1 part of antioxidant, 1 part of stabilizer, molten
20 parts of agent.
Comparative example 1
80 parts of low density polyethylene (LDPE), 10 parts of carbon black, 0.5 part of antioxidant, 2 parts of stabilizer, 10 parts of solvent.
Comparative example 2
100 parts of low density polyethylene (LDPE), 10 parts of carbon black, 0.1 part of antioxidant, 1 part of stabilizer, 20 parts of solvent.
Degradation and breakdown voltage test are carried out to embodiment and comparative example, as a result as shown in the table:
| Embodiment 1 | Embodiment 2 | Comparative example 1 | Comparative example 2 | |
| Degradation (h) | 35.2 | 36.4 | 29.5 | 28.7 |
| Breakdown test (kV) | 28.6 | 27.5 | 18.5 | 17.3 |
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 (5)
1. a kind of XLPE cable insulating materials, comprises the following components in parts by weight: 80-100 parts of low density polyethylene (LDPE), ferrite is received
0.5-2 parts of rice grain, 10-20 parts of carbon black, 0.1-3 parts of antioxidant, 1-3 parts of stabilizer, 10-20 parts of solvent；The wherein iron oxygen
Body nano particle is prepared in accordance with the following methods: preparing Ni2+、Fe3+Molar ratio is the mixed solution of 1-3:1, and molecular sieve is added,
12-36h is stirred at normal temperature, through filtering and washing, is put into Muffle furnace after drying and is warming up to 800-1100 DEG C of roasting 1-6h；Then
Product after roasting is placed in hydrofluoric acid solution, 2-3h is stirred, solid sample is filtered, washed, dry after obtain ferronickel
Oxysome nanotube.
2. XLPE cable insulating materials as described in claim 1, it is characterised in that the solvent is hexamethylene, toluene, just pungent
One of alkane, dimethyl carbonate, diethyl carbonate.
3. XLPE cable insulating materials as described in claim 1, it is characterised in that the stabilizer is zinc petroleum sulfonate, tristearin
One of sour iron, zinc stearate are a variety of.
4. XLPE cable insulating materials as described in claim 1, it is characterised in that the antioxidant is antioxidant 1010, antioxygen
The mixture of any one or more of agent 1024, antioxidant 1035, antioxidant 264 and DNP.
5. XLPE cable insulating materials as described in claim 1, it is characterised in that the molecular sieve is MCM, ZSM Series Molecules
Sieve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN110818967A (en) * | 2019-12-13 | 2020-02-21 | 安徽鲜果时光商贸有限公司 | Cable insulation material |
| CN114621512B (en) * | 2022-05-17 | 2022-08-05 | 浙江大学杭州国际科创中心 | Cable insulation material and preparation method thereof |
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| CN103232246A (en) * | 2013-02-20 | 2013-08-07 | 国网智能电网研究院 | Preparation method of thermal spraying powder for ferrite corrosion-resistant coating |
| CN103435893A (en) * | 2013-08-28 | 2013-12-11 | 国家电网公司 | Transmission line lead anti-icing compound coil based on ferrite and preparation method thereof |
| CN105860250A (en) * | 2016-04-20 | 2016-08-17 | 安徽中宏线缆有限公司 | Pollution-proof nano magnesium oxide doped polyethylene direct-current cable composite material and preparation method thereof |
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| CN103232246A (en) * | 2013-02-20 | 2013-08-07 | 国网智能电网研究院 | Preparation method of thermal spraying powder for ferrite corrosion-resistant coating |
| CN103435893A (en) * | 2013-08-28 | 2013-12-11 | 国家电网公司 | Transmission line lead anti-icing compound coil based on ferrite and preparation method thereof |
| CN105860250A (en) * | 2016-04-20 | 2016-08-17 | 安徽中宏线缆有限公司 | Pollution-proof nano magnesium oxide doped polyethylene direct-current cable composite material and preparation method thereof |
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