CN106960701B - A kind of compound power cable of resistance to breakdown - Google Patents
A kind of compound power cable of resistance to breakdown Download PDFInfo
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- CN106960701B CN106960701B CN201710230309.3A CN201710230309A CN106960701B CN 106960701 B CN106960701 B CN 106960701B CN 201710230309 A CN201710230309 A CN 201710230309A CN 106960701 B CN106960701 B CN 106960701B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
- H01B9/021—Features relating to screening tape per se
-
- 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
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0869—Acids or derivatives thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/225—Screening coaxial cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/04—Concentric cables
-
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Insulated Conductors (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of compound power cables of resistance to breakdown; it is characterized in that; including conductor; there is the first conductor shield on the outside of the conductor; there is insulating layer on the outside of first conductor shield, also there is the second conductor shield, the second conductor shield outer layer covers matcoveredn on the outside of the insulating layer; the conductor is copper conductor, and first conductor shield and the second conductor shield are the shielding material of nanoscale lead metal compound.The power cable of the present invention has stronger breakdown characteristics.
Description
Technical field
The present invention relates to a kind of compound power cables of resistance to breakdown, belong to field of cables.
Background technology
Currently, China's electric wire production scale has been more than the U.S. and Japan, become maximum electric wire life in the world
Produce state.In recent years, wires and cables industry total industrial output value increases up to 10% or more every year, and wires and cables industry is in quick hair
It is the duration of an exhibition, adjoint and come that there is also some urgent problems, wherein 35kv and following voltage class XLPE insulated power cables
High malfunction rate it is especially prominent.Due to manufacturing process and extraneous factor such as external force damage, water translocation, chemical attack etc.,
It forms the dendritic premature ageing of water tree and cable run operation breakdown fault is caused to account for about the 90% of power cable operation fault sum.
I invent it is a kind of addition nanoscale lead metal compound shielding material synthetic method be applied to power cable, have fine shielding
Effect, breakdown characteristics are strong.
Invention content
In view of the above existing problems in the prior art, the present invention provides a kind of compound power cable of resistance to breakdown, have relatively strong
Breakdown characteristics.
To achieve the goals above, the technical solution adopted by the present invention is：A kind of compound power cable of resistance to breakdown, feature
It is, including conductor that there is the first conductor shield on the outside of the conductor, have on the outside of first conductor shield exhausted
Also there is the second conductor shield, the second conductor shield outer layer covers to have protection for edge layer, insulating layer outside
Layer.
The conductor is copper conductor, and first conductor shield and the second conductor shield are nanoscale lead gold
Belong to the shielding material of compound.
The thickness of first conductor shield is twice of the second conductor shielding layer thickness.
The shielding material preparation method of the nanoscale lead metal compound is as follows：Step 1 is pressed with atoleine first
Mass fraction 1:1 dilution titanate coupling agent NDZ-102；
Step 2, again by length be 5mm carbon fiber impregnate wherein, magnetic agitation 5h is then allowed to stand 48h;
Step 3 then carry out ultrasonication 3h, be transferred to air dry oven dry 12h;
Step 4 uses atoleine（1:1）Dilution titanate coupling agent TMC-TTS is added in lead powder, uses high-speed mixer
It is sufficiently mixed；
Step 5 then carry out ultrasonic wave decentralized processing 3h, be transferred to air dry oven dry 12h;
Step 6 mixes the carbon fiber pipe handled well and lead powder, then carries out hot alkali treatment：First in 180 DEG C of heat
2h is handled under air, the sodium hydroxide solution for being then added 5% impregnates 3h, is then washed with deionized 6-8 times after immersion
To neutrality, nanoscale lead metal compound is obtained；
Step 7 is on a mill melt into ethylene-acrylic acid second resin copolymer flow-like, and adjustment roller rotating speed is
15rpm, temperature is 200 DEG C, until ethylene-acrylic acid second resin copolymer melts uniformly；
Step 8 and then nanoscale lead metal compound obtained is added melts uniform ethylene-acrylic acid second fat again
Copolymer is kneaded 3h, adjusting roller gap and does not stop batch mixing with small shovel in mixing process, it is made uniformly to mix.
Step 9 is then transferred into microwave reactor after evenly mixing, microwave treatment 2；
After step 10, microwave treatment, then with 200 DEG C on vulcanizing press, pressure is hot pressed into for 20MPa
Thickness is 2.5mm, and size is the square plate of 280mm × 280mm, to be repeatedly vented in being compacted insulating process, most
The shielding material of addition nanoscale lead metal compound is obtained eventually.
Advantageous effect:A kind of compound resistance to breakdown power cable of the invention uses double-layer conductor shielding material, conductor shielding
The raw material of material relatively easily obtains, and by the way that nanoscale lead metal compound is added, can reduce volume resistivity, volume resistance
Rate is lower, and the electric conductivity of material is better, and the shielding properties of the shielding material of good conductivity might as well.Pass through ultrasonic wave in building-up process
Processing keeps mixture dispersion more uniform, and inventor can significantly improve its physico-chemical property enhancing screen by hot alkali treatment discovery again
Cover effect.Wherein, embodiment 1 produces lead powder, carbon fiber pipe mass ratio 45:6 sample.4.5 parts of lead powder, 0.6 part of carbon fiber,
0.012 part of titanate coupling agent NDZ-102,0.09 part of titanate coupling agent TMC-TTS, 0.102 part of paraffin, 250 parts of second
Alkene-ETHYL CYANOACRYLATE copolymer, the breakdown capability i.e. shielding by force step by step of its anti-power frequency of the power cable of shielding material application obtained
Effect is good.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
1, conductor, the 2, first conductor shield, 3, insulating layer, the 4, second conductor shield, 5, protective layer.
Specific implementation mode
A kind of compound power cable of resistance to breakdown, including conductor 1, conductor outside have the first conductor shield 2, institute
There is insulating layer 3 on the outside of the first conductor shield stated, also there is the second conductor shield 4 on the outside of the insulating layer, it is described
The second conductor shield outer layer covers matcoveredn 5.The conductor is copper conductor, first conductor shield and the
Two conductor shields are the shielding material of nanoscale lead metal compound.The thickness of first conductor shield is second
Twice of conductor shielding layer thickness.
The shielding material preparation method such as following embodiment of the nanoscale lead metal compound：
Embodiment 1 produces lead powder, carbon fiber pipe mass ratio 45:6 sample, 4.5 parts of lead powder, 0.6 part of carbon fiber.0.012
Part titanate coupling agent NDZ-102,0.09 part of titanate coupling agent TMC-TTS, 0.102 part of paraffin, 250 parts of ethylene-propylenes
Sour second resin copolymer.
Step 1 uses atoleine first（0.012 part）By mass fraction 1:1 dilution titanate coupling agent NDZ-102
（0.012 part）（Coupling agent dosage is the 2% of carbon fiber quality）；
Step 2, again by length be 5mm 0.6 part of carbon fiber impregnate wherein, magnetic agitation 5h is then allowed to stand 48h;
Step 3 then carry out ultrasonication 3h, be transferred to air dry oven dry 12h;
Step 4 presses mass fraction 1 with (0.09 part) of atoleine:1 dilution titanate coupling agent TMC-TTS (0.09
Part)（Coupling agent dosage is the 2% of lead powder quality）It is added in 4.5 parts of lead powder, is sufficiently mixed with high-speed mixer；
Step 5 then carry out ultrasonic wave decentralized processing 3h, be transferred to air dry oven dry 12h;
Step 6 mixes the carbon fiber pipe handled well and lead powder, then carries out hot alkali treatment：First in 180 DEG C of heat
2h is handled under air, the sodium hydroxide solution for being then added 5% impregnates 3h, is then washed with deionized 6-8 times after immersion
To neutrality, nanoscale lead metal compound is obtained；
Step 7 is on a mill melt into 250 parts of ethylene-acrylic acid second resin copolymers flow-like, and adjustment roller turns
Speed is 15rpm, and temperature is 200 DEG C, until the thawing of ethylene-acrylic acid second resin copolymer is uniform；
Step 8 and then nanoscale lead metal compound obtained is added melts uniform ethylene-acrylic acid second fat again
Copolymer is kneaded 3h, adjusting roller gap and does not stop batch mixing with small shovel in mixing process, it is made uniformly to mix.
Step 9 is then transferred into microwave reactor after evenly mixing, microwave treatment 2；
After step 10, microwave treatment, then with 200 DEG C on vulcanizing press, pressure is hot pressed into for 20MPa
Thickness is 2.5mm, and size is the square plate of 280mm × 280mm, to be repeatedly vented in being compacted insulating process, most
The shielding material of addition nanoscale lead metal compound is obtained eventually.
Embodiment 2 produces lead powder, carbon fiber pipe mass ratio 45:7 sample, 4.5 parts of lead powder, 0.7 part of carbon fiber.0.012
Part titanate coupling agent NDZ-102,0.09 part of titanate coupling agent TMC-TTS, 0.102 part of paraffin, 250 parts of ethylene-propylenes
Sour second resin copolymer, other operating procedures are as embodiment 1.
Embodiment 3 produces lead powder, carbon fiber pipe mass ratio 45:8 sample, 4.5 parts of lead powder, 0.8 part of carbon fiber.0.012 part
Titanate coupling agent NDZ-102,0.09 part of titanate coupling agent TMC-TTS, 0.102 part of paraffin, 250 parts of ethylene-acrylic acids
Second resin copolymer, other operating procedures are as embodiment 1.
Embodiment 4 produces lead powder, carbon fiber pipe mass ratio 45:10 sample, 4.5 parts of lead powder, 1 part of carbon fiber.0.012 part
Titanate coupling agent NDZ-102,0.09 part of titanate coupling agent TMC-TTS, 0.102 part of paraffin, 250 parts of ethylene-acrylic acids
Second resin copolymer, other operating procedures are as embodiment 1.
Embodiment 5 produces lead powder, carbon fiber pipe mass ratio 45:15 sample, 4.5 parts of lead powder, 1.5 parts of carbon fiber.0.012
Part titanate coupling agent NDZ-102,0.09 part of titanate coupling agent TMC-TTS, 0.102 part of paraffin, 250 parts of ethylene-propylenes
Sour second resin copolymer, other operating procedures are as embodiment 1.
Embodiment 6 produces lead powder, carbon fiber pipe mass ratio 35:7 sample, 3.5 parts of lead powder, 0.7 part of carbon fiber.0.012 part
Titanate coupling agent NDZ-102,0.09 part of titanate coupling agent TMC-TTS, 0.102 part of paraffin, 250 parts of ethylene-acrylic acids
Second resin copolymer, other operating procedures are as embodiment 1.
Embodiment 7 produces lead powder, carbon fiber pipe mass ratio 25:7 sample, 2.5 parts of lead powder, 0.7 part of carbon fiber.0.012
Part titanate coupling agent NDZ-102,0.09 part of titanate coupling agent TMC-TTS, 0.102 part of paraffin, 250 parts of ethylene-propylenes
Sour second resin copolymer, other operating procedures are as embodiment 1.
Embodiment 8 produces lead powder, carbon fiber pipe mass ratio 15:7 sample, 1.5 parts of lead powder, 0.7 part of carbon fiber.0.012 part
Titanate coupling agent NDZ-102,0.09 part of titanate coupling agent TMC-TTS, 0.102 part of paraffin, 250 parts of ethylene-acrylic acids
Second resin copolymer, other operating procedures are as embodiment 1.
Embodiment 9 produces lead powder, carbon fiber pipe mass ratio 35:35 sample, 3.5 parts of lead powder, 3.5 parts of carbon fiber.0.012
Part titanate coupling agent NDZ-102,0.09 part of titanate coupling agent TMC-TTS, 0.102 part of paraffin, 250 parts of ethylene-propylenes
Sour second resin copolymer, other operating procedures are as embodiment 1.
Embodiment 10 produces lead powder, carbon fiber pipe mass ratio 45:5 sample, 4.5 parts of lead powder, 0.5 part of carbon fiber.0.012
Part titanate coupling agent NDZ-102,0.09 part of titanate coupling agent TMC-TTS, 0.102 part of paraffin, 250 parts of ethylene-propylenes
Sour second resin copolymer, other operating procedures are as embodiment 1.
Embodiment 11 produces lead powder, carbon fiber pipe mass ratio 45:4 sample, 4.5 parts of lead powder, 0.4 part of carbon fiber.0.012
Part titanate coupling agent NDZ-102,0.09 part of titanate coupling agent TMC-TTS, 0.102 part of paraffin, 250 parts of ethylene-propylenes
Sour second resin copolymer, other operating procedures are as embodiment 1.
Embodiment 12 produces lead powder, carbon fiber pipe mass ratio 45:2 sample, 4.5 parts of lead powder, 0.2 part of carbon fiber.0.012
Part titanate coupling agent NDZ-102,0.09 part of titanate coupling agent TMC-TTS, 0.102 part of paraffin, 250 parts of ethylene-propylenes
Sour second resin copolymer, other operating procedures are as embodiment 1.
Embodiment 13 produces lead powder, carbon fiber pipe mass ratio 45:1 sample, 4.5 parts of lead powder, 0.1 part of carbon fiber.0.012
Part titanate coupling agent NDZ-102,0.09 part of titanate coupling agent TMC-TTS, 0.102 part of paraffin, 250 parts of ethylene-propylenes
Sour second resin copolymer, other operating procedures are as embodiment 1.
Reference examples 1 produce lead powder, carbon fiber pipe mass ratio 45:6 sample, 4.5 parts of lead powder, 0.6 part of carbon fiber.0.012 part
Titanate coupling agent NDZ-102,0.09 part of titanate coupling agent TMC-TTS, 0.102 part of paraffin, 250 parts of ethylene-acrylic acids
Second resin copolymer, without magnetic agitation, but mechanical agitation, other operating procedures are as embodiment 1.
Reference examples 2 produce lead powder, carbon fiber pipe mass ratio 45:6 sample, 4.5 parts of lead powder, 0.6 part of carbon fiber.0.012 part
Titanate coupling agent NDZ-102,0.09 part of titanate coupling agent TMC-TTS, 0.102 part of paraffin, 250 parts of ethylene-acrylic acids
Second resin copolymer, without ultrasonication, other operating procedures are as embodiment 1.
Reference examples 3 produce lead powder, carbon fiber pipe mass ratio 45:6 sample, 4.5 parts of lead powder, 0.6 part of carbon fiber.0.012 part
Titanate coupling agent NDZ-102,0.09 part of titanate coupling agent TMC-TTS, 0.102 part of paraffin, 250 parts of ethylene-acrylic acids
Second resin copolymer, without hot alkali treatment, other operating procedures are as embodiment 1.
Reference examples 4 produce lead powder, carbon fiber pipe mass ratio 45:6 sample, 4.5 parts of lead powder, 0.6 part of carbon fiber.0.012 part
Titanate coupling agent NDZ-102,0.09 part of titanate coupling agent TMC-TTS, 0.102 part of paraffin, 250 parts of ethylene-acrylic acids
Second resin copolymer, without microwave treatment, other operating procedures are as embodiment 1.
Reference examples 5（It is added without lead powder）Produce 0.6 part of carbon fiber, 0.012 part of titanate coupling agent NDZ-102,0.012
Part paraffin, 250 parts of ethylene-acrylic acid second resin copolymers, other operating procedures are as embodiment 1.
Reference examples 6 produce 4.5 parts of lead powder, 0.09 part of titanate coupling agent TMC-TTS, 0.09 part of paraffin, 250 parts of second
Alkene-ETHYL CYANOACRYLATE copolymer, other operating procedures are as embodiment 1.
Power frequency breakdown test step by step：
Above-mentioned obtained addition nanoscale lead metal compound shielding material is separately in power cable.To these electricity
Power cable carries out 0d, after 30d duty cycles, 200d accelerated ageings, carries out power frequency after 400d accelerated ageings respectively and punctures examination step by step
It tests.
One power frequency of table breakdown test result E step by stepb/(kv ▪mm-1)
| Group | 0d | 30d | 200d | 400d |
| Embodiment 1 | 56.6 | 56.4 | 54.5 | 53.5 |
| Embodiment 2 | 55.3 | 49.6 | 46.8 | 45.6 |
| Embodiment 3 | 45.1 | 38.8 | 27.4 | 17.7 |
| Embodiment 4 | 45.6 | 37.4 | 25.6 | 16.5 |
| Embodiment 5 | 44.8 | 39.3 | 29.7 | 15.7 |
| Embodiment 6 | 45.2 | 36.7 | 28.5 | 18.5 |
| Embodiment 7 | 46.1 | 38.2 | 28.7 | 17.8 |
| Embodiment 8 | 45.7 | 36.6 | 27.6 | 15.5 |
| Embodiment 9 | 45.2 | 34.4 | 26.3 | 14.3 |
| Embodiment 10 | 44.6 | 39.8 | 28.7 | 19.7 |
| Embodiment 11 | 44.5 | 35.3 | 25.5 | 13.4 |
| Embodiment 12 | 45.5 | 38.7 | 28.6 | 16.8 |
| Embodiment 13 | 44.3 | 38.3 | 26.9 | 17.5 |
| Reference examples 1 | 48.1. | 37.7 | 27.4 | 13.6 |
| Reference examples 2 | 45.6 | 39.6 | 28.7 | 14.7 |
| Reference examples 3 | 46.3 | 34.3 | 25.4 | 10.8 |
| Reference examples 4 | 45.1 | 33.7 | 27.7 | 9.9 |
| Reference examples 5 | 33.6 | 28.4 | 16.9 | 4.4 |
| Reference examples 6 | 34.3 | 30.3 | 15.3 | 4.9 |
The experimental results showed that：It can be found that lead powder and carbon fiber pipe mass ratio are for its power frequency breakdown field of entire power cable
It is most stable by force to there is important influence, multiple embodiment to find that lead powder is with carbon fiber pipe 45:7 in 45:8 proportional time,
It has reached extraordinary stability, and punctures effect, and under other ratios, effect obviously has significantly with the two embodiments
Difference, and have significant difference in ageing stability,
Embodiment 1 and 2 addition nanoscale lead metal compound shielding materials obtained are applied to power cable its power frequency and hit
It wears that field strength is most stable to remain unchanged substantially after accelerated ageing 400d, illustrates the raw material proportioning, operating procedure is most beneficial for shielding
With holding shield effectiveness.Under other techniques addition nanoscale lead metal compound shielding material obtained be applied to power cable its
Stability is bad, and breakdown strength declines power frequency step by step after long-time.Comparative example 1, comparative example 1,2,3,4,5,6 can be sent out
It is existing.Lead powder, its shielding material application obtained of carbon fiber is added in magnetic agitation, ultrasonication, hot alkali treatment, microwave treatment
To power cable, its anti-power frequency punctures effect and greatly improves step by step, i.e., shield effectiveness is very good.
Claims (3)
1. a kind of compound power cable of resistance to breakdown, which is characterized in that including conductor, there is the first conductor screen on the outside of the conductor
Layer is covered, there is insulating layer on the outside of first conductor shield, also there is the second conductor shield on the outside of the insulating layer,
The second conductor shield outer layer covers matcoveredn；First conductor shield and the second conductor shield be
The shielding material of nanoscale lead metal compound,
The shielding material preparation method of the nanoscale lead metal compound is as follows：Step 1 uses atoleine 0.012 first
Part presses mass fraction 1:1 dilution titanate coupling agent NDZ-102,
Step 2, again by length be 5mm 0.6 part of carbon fiber impregnate wherein, magnetic agitation 5h is then allowed to stand 48h;
Step 3 and then ultrasonication 3h is carried out again, 12h is dried being transferred to air dry oven;
Step 4 presses mass fraction 1 with 0.09 part of atoleine:1 dilution titanate coupling agent TMC-TTS is added to 4.5 parts of lead powder
In, it is sufficiently mixed with high-speed mixer；
Step 5 and then ultrasonic wave decentralized processing 3h is carried out again, 12h is dried being transferred to air dry oven;
Step 6 mixes the carbon fiber pipe handled well and lead powder, then carries out hot alkali treatment：First in 180 DEG C of hot-airs
Lower processing 2h, the sodium hydroxide solution for being then added 5% impregnate 3h, and 6-8 times is then washed with deionized after immersion into
Property, obtain nanoscale lead metal compound；
Step 7 is on a mill melt into 250 parts of ethylene-acrylic acid second resin copolymers flow-like, and adjustment roller rotating speed is
15rpm, temperature is 200 DEG C, until ethylene-acrylic acid second resin copolymer melts uniformly；
Step 8 and then nanoscale lead metal compound obtained is added again melts uniform ethylene-acrylic acid second fat and be copolymerized
Object is kneaded 3h, adjusting roller gap and does not stop batch mixing with small shovel in mixing process, it is made uniformly to mix；
Step 9 is then transferred into microwave reactor after evenly mixing, microwave treatment；
After step 10, microwave treatment, then on vulcanizing press with 200 DEG C, pressure is that 20MPa is hot pressed into thickness and is
2.5mm, size are the square plate of 280mm × 280mm, to be repeatedly vented in being compacted insulating process, finally obtain and add
The shielding material of Ghana's meter level lead metal compound.
2. the compound power cable of resistance to breakdown of one kind according to claim 1, which is characterized in that the conductor is led for copper
Body.
3. the compound power cable of resistance to breakdown of one kind according to claim 1, which is characterized in that first conductor shielding
The thickness of layer is twice of the second conductor shielding layer thickness.
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| CN201710230309.3A CN106960701B (en) | 2017-04-10 | 2017-04-10 | A kind of compound power cable of resistance to breakdown |
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|---|---|---|---|
| CN201710230309.3A CN106960701B (en) | 2017-04-10 | 2017-04-10 | A kind of compound power cable of resistance to breakdown |
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| CN110079006B (en) * | 2019-04-30 | 2021-06-25 | 金太阳电缆有限公司 | Composite breakdown-resistant power cable |
| CN110079007B (en) * | 2019-04-30 | 2021-08-27 | 无锡市群星线缆有限公司 | Compound resistant time power cable that wears |
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| CN102585341B (en) * | 2012-02-08 | 2013-11-20 | 上海交通大学 | Preparation method for anti-radiation ethylene-vinyl acetate copolymer composite material |
| CN103021549A (en) * | 2012-11-29 | 2013-04-03 | 安徽徽宁电器仪表集团有限公司 | Water-proof anti-corrosion electric power flexible cable |
| CN104629210A (en) * | 2015-01-23 | 2015-05-20 | 淮南文峰航天电缆有限公司 | Anti-oxidation anticorrosive cable material with shielding effect and preparation method thereof |
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