CN107123463A - A kind of zinc oxide composite insulating material that can adaptively regulate and control conductance and dielectric and preparation method thereof - Google Patents

A kind of zinc oxide composite insulating material that can adaptively regulate and control conductance and dielectric and preparation method thereof Download PDF

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Publication number
CN107123463A
CN107123463A CN201710276301.0A CN201710276301A CN107123463A CN 107123463 A CN107123463 A CN 107123463A CN 201710276301 A CN201710276301 A CN 201710276301A CN 107123463 A CN107123463 A CN 107123463A
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zinc oxide
parts
conductance
dielectric
insulating material
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CN201710276301.0A
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CN107123463B (en
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许义彬
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JING FENG GROUP
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JING FENG GROUP
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/56—Insulating bodies
    • H01B17/60—Composite insulating bodies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
    • 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
    • H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
    • H01B3/10—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances metallic oxides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/28—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • 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
    • H01B3/303—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups H01B3/38 or H01B3/302
    • H01B3/306—Polyimides or polyesterimides

Abstract

It is a kind of adaptively to regulate and control the zinc oxide composite insulating material of conductance and dielectric, it is characterised in that to obtain the Zinc oxide powder particle of non-linear d characteristic with bismuth, manganese, cobalt, niobium doping zinc-oxide first；Again in its in situ Polymerization polyimides, Zinc oxide powder particle nonlinearities conductance property is assigned；Finally with this filled silicon rubber, the zinc oxide composite insulating material of conductance and dielectric can adaptively be regulated and controled by being made a kind of.The composite insulating material of the present invention, while there is nonlinear conductance characteristic and non-linear d characteristic, can the adaptive change with extra electric field, the problem of helping to solve power system insulation equipment or part non-uniform electric.

Description

It is a kind of adaptively to regulate and control the zinc oxide composite insulating material and its system of conductance and dielectric Preparation Method
Technical field
The invention belongs to Material Field, and in particular to a kind of adaptively to regulate and control the zinc oxide compound inslation of conductance and dielectric Material and preparation method thereof.
Background technology
In high pressure, super-pressure or even extra-high voltage alternating current-direct current power transmission and transformation system（Referred to as high voltage power transmission and transforming system）In, system Voltage class is higher, and the importance and degree of difficulty of Insulation Problems are all the more notable.Insulator arrangement in high voltage power transmission and transforming system or Part, its own Electric Field Distribution born is often extremely uneven, the insulated part of such as cable termination, the height of various insulators Pressure side part etc., the electric-field intensity born far beyond the average value, even up to average value of overall electric-field intensity several times, Thus a series of designs, the adverse effect of manufacture view are brought.Therefore, insulator arrangement or the overall electric field point of part are rationally improved The uniformity coefficient of cloth, relaxes local high electric-field intensity, can reduce high pressure（Particularly extra-high voltage）Equipment design, the skill of manufacture Art difficulty, reduces power equipment cost, and improve the security reliability of equipment longtime running.
Improving the conventional method of Electric Field Distribution mainly includes：By changing electrode shape, being embedded in metal in dielectric Inner shield is played to act on, add a layer parallel capacitance pole plate inside dielectric, press on dielectric surface or peripheral disposition Ring improves insulator arrangement or the overall Electric Field Distribution uniformity coefficient of part as target, installation parallel equalizing capacitor etc..These The main geometry from electrode of method and optimization this aspect of distribution are started with improvement Electric Field Distribution, but it is designed equipment early stage And the requirement manufactured is very high, material and the cost in production process, and the actual effect of uniform field strength are added It is extremely limited.But if the function of making it possess uniform field strength can be started with from the dielectric property of insulating materials itself, then can Overcome above mentioned problem and reach the effect of more preferably uniform field strength.
Author Xie Jingcheng et al. exists《Superconduction YBa2Cu3O7+δThe pressure-sensitive and dielectric property of/silicon rubber composite material》In one text, Using YBa2Cu3O7+δ(abbreviation YBCO) polycrystalline ceramics superconductive powder carries out dispensing with silicon rubber by different quality ratio, by special Preparation technology, synthesize different content superconduction YBCO/ silicon rubber polymer composites.As a result show, the composite exists Under different stress, the excursion of resistance value can not improve the problem of Electric Field Distribution is uneven in the 1-4 order of magnitude.
The content of the invention
It can adaptively regulate and control the zinc oxide of conductance and dielectric it is an object of the invention to provide a kind of improvement Electric Field Distribution Composite insulating material and preparation method thereof.
To achieve these goals, present invention employs following technical scheme：
It is a kind of adaptively to regulate and control the zinc oxide composite insulating material of conductance and dielectric, it is characterised in that first with bismuth, manganese, cobalt, Niobium doping zinc-oxide obtains the Zinc oxide powder particle of non-linear d characteristic；Again in its in situ Polymerization polyimides, assign Give Zinc oxide powder particle nonlinearities conductance property；Finally with this filled silicon rubber, obtained one kind can adaptively regulate and control conductance and The zinc oxide composite insulating material of dielectric.
Described can adaptively regulate and control the zinc oxide composite insulating material of conductance and dielectric, it is characterised in that it is by as follows The raw material of parts by weight is prepared from：20-25 parts of zinc oxide, 0.5-1 parts of bismuth oxide, 2-3 parts of manganese dioxide, cobaltosic oxide 0.6- 0.8 part, 0.5-0.7 parts of niobium pentaoxide, 3-4 parts of silica, 10-12 parts of aluminum oxide, 1-METHYLPYRROLIDONE 180-200 Part, 20-25 parts of dimethyl diphenyl methane diamines, 30-35 parts of 4,4 '-diaminodiphenyl ether, 1,4,5,8 naphthalenetetracarboxylic acid dianhydride 25- 30 parts, 100-120 parts of chlorohydrin rubber, 450-500 parts of methyl vinyl silicone rubber.
Described can adaptively regulate and control the zinc oxide composite insulating material of conductance and dielectric, it is characterised in that it is by as follows Step is prepared from：
（1）By zinc oxide, bismuth oxide, manganese dioxide, cobaltosic oxide, niobium pentaoxide, silica and aluminum oxide wet method ball Mill is well mixed, by the molten slurry mixed by sponging granulator spray shaping, and crosses 120-150 mesh sieves to gained powder；Will Powder after sieving is placed in tube furnace and calcined, and 1300-1400 DEG C, and calcining at constant temperature are warming up to 20-30 DEG C/min speed 5-6h, and it is cooled to room temperature；Powder after calcining is pulverized, ball milling, cross 220-250 mesh sieves, obtain non-linear d characteristic Zinc oxide powder particle；
（2）Reaction vessel is placed in ice-water bath, by step（1）Product be placed in reaction vessel, add N- crassitudes Ketone, ultrasonic vibration 50-60min forms stable suspension, leads to nitrogen and protects, addition dimethyl diphenyl methane diamines and 4,4 '- Diaminodiphenyl ether, is stirred vigorously 2-3h, in three times, every 0.5h, adds Isosorbide-5-Nitrae, and 5,8- naphthalenetetracarbacidic acidic dianhydrides continue after adding Stir 5-6h；
（3）By step（2）Product, chlorohydrin rubber, methyl vinyl silicone rubber it is well mixed after, pour into straight with 10-12mm In the monolithic mold of footpath circular hole, vacuum drawn bubble 30-40min in vacuum drying chamber is placed in, is subsequently placed on hot press in 15- At 20MPa, 150-180 DEG C, heating vulcanization 2-3h obtains adaptively regulating and controlling the zinc oxide compound inslation material of conductance and dielectric Material.
Described can adaptively regulate and control the zinc oxide composite insulating material of conductance and dielectric, it is characterised in that described first The molecular weight of base vinylsiloxane rubber is 50-70 ten thousand.
Using above-mentioned technical scheme, beneficial effects of the present invention are：
The present invention obtains the Zinc oxide powder particle of non-linear d characteristic with bismuth, manganese, cobalt, niobium doping zinc-oxide, bismuth, manganese, cobalt, Niobium doping zinc-oxide to form the crystal boundary with Non-linear pressure sensitive conductance and dielectric property between zinc oxide grain so that oxygen Change zinc powder granule and integrally possess good nonlinear dielectric properties.The present invention is again in Zinc oxide powder particle surface, and original position is poly- Non-linear conducting polymer polyimides is closed, the zinc oxide of nonlinear conductance and non-linear d characteristic-poly- is possessed simultaneously Acid imide particle；The polyimides of zinc oxide surface also causes the compatibility of Zinc oxide powder particle and silicon rubber to increase.This hair The bright base material using silicon rubber as insulating materials, with have simultaneously nonlinear conductance and the zinc oxide of non-linear d characteristic- Polyimide particles are filled, and composite insulating material is made, and contribute to that more effective, widely to solve voltage levels power system exhausted The problem of edge equipment or part non-uniform electric；For in AC system, the non-uniform electric field caused by applied voltage, energy Improve Electric Field Distribution by leading factor of non-linear d characteristic, while the nonlinear conductance characteristic that composite has can also disappear The tired space charge of scattered plot, it is to avoid internal field concentrates caused by it.For straight-flow system, in normal conditions by composite wood The nonlinear conductance characteristic of material is leading to improve non-uniform electric field caused by external voltage and space charge, in various Transient Electric Fields The effect of non-linear d characteristic can be then played under effect.
Embodiment
The present embodiment can adaptively regulate and control the zinc oxide composite insulating material of conductance and dielectric, and it is by following parts by weight Raw material is prepared from：25 parts of zinc oxide, 1 part of bismuth oxide, 3 parts of manganese dioxide, 0.8 part of cobaltosic oxide, niobium pentaoxide 0.7 Part, 4 parts of silica, 12 parts of aluminum oxide, 200 parts of 1-METHYLPYRROLIDONE, 25 parts of dimethyl diphenyl methane diamines, 4,4 '-two 35 parts of amino-diphenylethers, 30 parts of 1,4,5,8 naphthalenetetracarboxylic acid dianhydride, 120 parts of chlorohydrin rubber, 500 parts of methyl vinyl silicone rubber.
The present embodiment can adaptively regulate and control the zinc oxide composite insulating material of conductance and dielectric, and it is prepared by following steps Form：
（1）By zinc oxide, bismuth oxide, manganese dioxide, cobaltosic oxide, niobium pentaoxide, silica and aluminum oxide wet method ball Mill is well mixed, by the molten slurry mixed by sponging granulator spray shaping, and crosses 150 mesh sieves to gained powder；Will sieving Powder afterwards is placed in tube furnace and calcined, and is warming up to 1400 DEG C, and calcining at constant temperature 5h with 30 DEG C/min speed, and be cooled to room Temperature；Powder after calcining is pulverized, ball milling, cross 250 mesh sieves, obtain the Zinc oxide powder particle of non-linear d characteristic；
（2）Reaction vessel is placed in ice-water bath, by step（1）Product be placed in reaction vessel, add N- crassitudes Ketone, ultrasonic vibration 60min forms stable suspension, leads to nitrogen protection, adds dimethyl diphenyl methane diamines and 4,4 '-two Amino-diphenylethers, is stirred vigorously 3h, in three times, every 0.5h, adds Isosorbide-5-Nitrae, and 5,8- naphthalenetetracarbacidic acidic dianhydrides continue to stir after adding 6h；
（3）By step（2）Product, chlorohydrin rubber, methyl vinyl silicone rubber it is well mixed after, pour into 12mm diameter circles In the monolithic mold in hole, vacuum drawn bubble 40min in vacuum drying chamber is placed in, is subsequently placed on hot press in 20MPa, 180 At DEG C, heating vulcanization 3h obtains adaptively regulating and controlling the zinc oxide composite insulating material of conductance and dielectric.

Claims (4)

1. a kind of can adaptively regulate and control the zinc oxide composite insulating material of conductance and dielectric, it is characterised in that first with bismuth, manganese, Cobalt, niobium doping zinc-oxide obtain the Zinc oxide powder particle of non-linear d characteristic；Again in its in situ Polymerization polyimides, Assign Zinc oxide powder particle nonlinearities conductance property；Finally with this filled silicon rubber, obtained one kind can adaptively regulate and control conductance And the zinc oxide composite insulating material of dielectric.
2. it can adaptively regulate and control the zinc oxide composite insulating material of conductance and dielectric, its feature according to claims 1 It is, it is prepared from by the raw material of following parts by weight：20-25 parts of zinc oxide, 0.5-1 parts of bismuth oxide, 2-3 parts of manganese dioxide, 0.6-0.8 parts of cobaltosic oxide, 0.5-0.7 parts of niobium pentaoxide, 3-4 parts of silica, 10-12 parts of aluminum oxide, N- methyl pyrroles 180-200 parts of pyrrolidone, 20-25 parts of dimethyl diphenyl methane diamines, 30-35 parts of 4,4 '-diaminodiphenyl ether, 1,4,5,8- naphthalenes 25-30 parts of tetracarboxylic acid dianhydride, 100-120 parts of chlorohydrin rubber, 450-500 parts of methyl vinyl silicone rubber.
3. it can adaptively regulate and control the zinc oxide composite insulating material of conductance and dielectric, its feature according to claims 1 It is, it is prepared from by following steps：
（1）By zinc oxide, bismuth oxide, manganese dioxide, cobaltosic oxide, niobium pentaoxide, silica and aluminum oxide wet method ball Mill is well mixed, by the molten slurry mixed by sponging granulator spray shaping, and crosses 120-150 mesh sieves to gained powder；Will Powder after sieving is placed in tube furnace and calcined, and 1300-1400 DEG C, and calcining at constant temperature are warming up to 20-30 DEG C/min speed 5-6h, and it is cooled to room temperature；Powder after calcining is pulverized, ball milling, cross 220-250 mesh sieves, obtain non-linear d characteristic Zinc oxide powder particle；
（2）Reaction vessel is placed in ice-water bath, by step（1）Product be placed in reaction vessel, add N- crassitudes Ketone, ultrasonic vibration 50-60min forms stable suspension, leads to nitrogen and protects, addition dimethyl diphenyl methane diamines and 4,4 '- Diaminodiphenyl ether, is stirred vigorously 2-3h, in three times, every 0.5h, adds Isosorbide-5-Nitrae, and 5,8- naphthalenetetracarbacidic acidic dianhydrides continue after adding Stir 5-6h；
（3）By step（2）Product, chlorohydrin rubber, methyl vinyl silicone rubber it is well mixed after, pour into straight with 10-12mm In the monolithic mold of footpath circular hole, vacuum drawn bubble 30-40min in vacuum drying chamber is placed in, is subsequently placed on hot press in 15- At 20MPa, 150-180 DEG C, heating vulcanization 2-3h obtains adaptively regulating and controlling the zinc oxide compound inslation material of conductance and dielectric Material.
4. can adaptively regulate and control the zinc oxide composite insulating material of conductance and dielectric according to claims 2,3, it is special Levy and be, the molecular weight of described methyl vinyl silicone rubber is 50-70 ten thousand.
CN201710276301.0A 2017-04-25 2017-04-25 A kind of zinc oxide composite insulating material and preparation method thereof that can adaptively regulate and control conductance and dielectric Active CN107123463B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109694217A (en) * 2019-01-27 2019-04-30 湖北工业大学 Nonlinear conductance composite material and preparation method and application and arrester

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CN102424576A (en) * 2011-08-31 2012-04-25 清华大学 Preparation method of non-linear composite material having adaptive uniform electric field
CN103214851A (en) * 2013-05-13 2013-07-24 哈尔滨理工大学 Liquid silicone rubber-based conductive nonlinear insulating material
CN103497519A (en) * 2013-09-30 2014-01-08 中国西电电气股份有限公司 Silicon rubber for injection molding vulcanization of extra-high voltage composite insulator, and preparation method of silicon rubber
CN104987717A (en) * 2015-07-01 2015-10-21 南京工业大学 Polyimide-based material with super capacitance characteristics and preparation method
CN105037759A (en) * 2015-07-01 2015-11-11 南京工业大学 Polyimide composite film with electromagnetic shielding function and preparation method thereof
CN106159868A (en) * 2016-08-03 2016-11-23 清华大学 Use the ac cable termination of non-linear preformed rubber stress cone

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070199729A1 (en) * 2003-08-21 2007-08-30 Siegel Richard W Nanocomposites With Controlled Electrical Properties
CN102424576A (en) * 2011-08-31 2012-04-25 清华大学 Preparation method of non-linear composite material having adaptive uniform electric field
CN102391646A (en) * 2011-11-07 2012-03-28 西安交通大学 Enhanced high-insulation composite material and preparation method thereof
CN103214851A (en) * 2013-05-13 2013-07-24 哈尔滨理工大学 Liquid silicone rubber-based conductive nonlinear insulating material
CN103497519A (en) * 2013-09-30 2014-01-08 中国西电电气股份有限公司 Silicon rubber for injection molding vulcanization of extra-high voltage composite insulator, and preparation method of silicon rubber
CN104987717A (en) * 2015-07-01 2015-10-21 南京工业大学 Polyimide-based material with super capacitance characteristics and preparation method
CN105037759A (en) * 2015-07-01 2015-11-11 南京工业大学 Polyimide composite film with electromagnetic shielding function and preparation method thereof
CN106159868A (en) * 2016-08-03 2016-11-23 清华大学 Use the ac cable termination of non-linear preformed rubber stress cone

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109694217A (en) * 2019-01-27 2019-04-30 湖北工业大学 Nonlinear conductance composite material and preparation method and application and arrester
CN109694217B (en) * 2019-01-27 2021-07-09 湖北工业大学 Nonlinear conductive composite material, preparation method and application thereof, and lightning arrester

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