CN107266798A - A kind of 45kv high pressures ethyl-propylene insulating materials - Google Patents
A kind of 45kv high pressures ethyl-propylene insulating materials Download PDFInfo
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- CN107266798A CN107266798A CN201710522792.2A CN201710522792A CN107266798A CN 107266798 A CN107266798 A CN 107266798A CN 201710522792 A CN201710522792 A CN 201710522792A CN 107266798 A CN107266798 A CN 107266798A
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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
- 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
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
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- 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
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- 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
- H01B3/442—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 aromatic vinyl compounds
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- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2234—Oxides; Hydroxides of metals of lead
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- C—CHEMISTRY; METALLURGY
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- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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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
- C08L2312/00—Crosslinking
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- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
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Abstract
A kind of disclosed 45kv high pressures ethyl-propylene insulating materials, its raw material and weight ratio for being made involved by active ingredient are：70 ~ 80 parts of ethylene propylene diene rubber；10 ~ 20 parts of powder low density polyethylene (LDPE)；5 ~ 10 parts of polystyrene resin；1 ~ 3 part of antioxidant MB；11 ~ 2 parts of age resistor XH；3 ~ 5 parts of plumbous plumbate；3 ~ 5 parts of microwax；2 ~ 4 parts of TAIC；3 ~ 4 parts of DCP；40 ~ 60 parts of calcinated argil；20 ~ 30 parts of talcum powder；8 ~ 12 parts of paraffin oil.The present invention provides a kind of 45kv high pressures ethyl-propylene insulating materials, and not only cost is low, and the cable flexibility prepared is good.
Description
Technical field
The invention belongs to cable insulation material technical field, and in particular to a kind of 45kv high pressures ethyl-propylene insulating materials.
Background technology
For medium and high voltage cable insulation, main material is the insulation of rubber-type second third and shaped plastics crosslinked polyethylene.Its
In, the insulation benefits of second third are that production line input cost is low, elastic good, the obtained cable better softness of the material of second third, but one
As in the case of the insulation of second third highest it is pressure-resistant be 30kV, during more than this voltage class, the shelf depreciation and Leakage Current of cable will
Greatly increase, cable service life drastically shortens, or even can quickly puncture and bring potential safety hazard.The advantage of crosslinked polyethylene is material
Material is more pure, and impurity content is few in formula, and highest is pressure-resistant can to reach 500kV even more highs.But crosslinked polyethylene hardness is big,
It is difficult to used on the removal cable required with softness, and produce the crosslinked polyethylene of high pressure and need to set up the vertical tower of crosslinking,
Disposable input is very big.
The current general resistance to voltage levels of existing mesohigh second third reach 30kV, and require very high to mixing facilities, it is necessary to
Use comminution granulation to produce, air-cooled rear directly sealing preserve is granulated by extruder, in the market there can be the producer of this complete equipment
Seldom, and this material market valency is generally up to 50 yuan/kg or so.Expensive price seriously to limit mesohigh second third exhausted
The use of edge, causes the crosslinked polyetylene insulated material for much having soft desired cable use occasion to have to select flexibility difference
Material, so as to user using bringing inconvenience.
The content of the invention
The purpose of the present invention is exactly to overcome some shortcomings present in above-mentioned background technology there is provided a kind of 45kv high pressures second third
Insulating materials, not only cost is low, and flexibility is good.
To reach above-mentioned purpose, a kind of disclosed 45kv high pressures ethyl-propylene insulating materials, active ingredient is made in it
Involved raw material and weight ratio be：70 ~ 80 parts of ethylene propylene diene rubber；10 ~ 20 parts of powder low density polyethylene (LDPE)；Polystyrene tree
5 ~ 10 parts of fat；1 ~ 3 part of antioxidant MB；1 ~ 2 part of age resistor XH-1；3 ~ 5 parts of plumbous plumbate；3 ~ 5 parts of microwax；TAIC 2~4
Part；3 ~ 4 parts of DCP；40 ~ 60 parts of calcinated argil；20 ~ 30 parts of talcum powder；8 ~ 12 parts of paraffin oil.
Ethylene contents 60% ~ 70% in the ethylene propylene diene rubber, propylene content 30% ~ 40%, ENB contents are 2% ~ 5%.
3 ~ 6g/10min of melt index scope of the powder low density polyethylene (LDPE).
The polystyrene resin is used to improve the dielectric properties of formula, improves the insulating properties of material.
The paraffin oil, flash-point need to reach 280 ~ 300 DEG C, it is ensured that under high pressure use condition, and paraffin oil will not be because of cable
Temperature is raised and fast transferring volatilizees, and influences material softness.
The microwax, fusing point is up to 90 DEG C, it is ensured that when cable is run below 90 DEG C, and microwax can continue in insulation
Surface forms diaphragm, prevents the bad airs such as insulating materials and oxygen, ozone and contacts.
In the disclosed material of high pressure second third, ethylene contents are up to 60% ~ 70%, and propylene content is up to 30 ~ 40, molecule
In be nonpolar ethene and propylene structure, therefore molecular polarizability is extremely low, so that it is guaranteed that main material have it is good exhausted
Edge performance and electric property.The fusing point of low density polyethylene (LDPE) is generally below 120 DEG C, so that it is guaranteed that formula materials have good add
Work performance, specific insulation is more than 1017Ω cm, further lifting EP rubbers insulating properties.Its as polystyrene,
Good electrical insulation properties are respectively provided with, by being added on a small quantity in formula, under the conditions of 140 DEG C, they are changed into plasticity state
Sufficiently can be in contact with EPDM molecule segment, after DCP and TAIC crosslinking, in molecule double bond part and easily
The structure for forming free radical forms new crosslinking points, reaches the other compatibility of molecular level, it is ensured that to the electric of ethylene propylene diene rubber
Insulating properties produce active influence.The paraffin oil and microwax used, molecular structure is also entirely non-polar conformations group
Into on the premise of good softening performance is provided, will not being had a negative impact to the electrical insulation properties of ethylene propylene diene rubber, together
When high fusing point and flash-point ensure that cable runs the migration that will not volatilize under the conditions of 90 DEG C, so as to extend the service life of insulation.
Should be noted in the formula processing technology it is following some：
Dust on banburying equipment floating weight must be cleaned out in advance, and banburying chamber's surrounding accomplishes that no other impurities are present；
Filter glue equipment installs filter screen, wherein maximum mesh number must reach more than 80 mesh, it is ensured that do not have bulky grain in formula materials
Impurity is present；
Banburying and filter glue temperature need to reach 140 DEG C, it is ensured that each material can be dispersed in mixing process；
The not handy direct contact material of hand of all operating personnel, must wear no dust gloves during contact, at the same wear mouth mask and
Cap；
Material closed must be stored in the casing being sized for after taking up, and the influence electricity such as dust must not be entered during storage
The impurity of performance.
Compared with prior art, a kind of disclosed 45kv high pressures ethyl-propylene insulating materials, have the following characteristics that：Match somebody with somebody
Material is commercially available material in side, is readily available, and preparation technology is simple, adds equipment in addition without enterprise and brings economy to enterprise
Burden.The obtained ethyl-propylene insulating materials of resistance to mesohigh cost price is less than 20 yuan/kg, and only commercially available same specification granulation second third is exhausted
The half of edge material price.
Meanwhile, the long-term use voltage of the insulating materials of gained can reach 45kV, more than presently commercially available 30kV ranks
The insulation compound of second third, is that medium and high voltage cable industry provides more choices.
Specific embodiment
Clear, complete description will be carried out to technical scheme below by specific embodiment.
A kind of disclosed 45kv high pressures ethyl-propylene insulating materials, it is made the raw material involved by active ingredient and matched somebody with somebody
Again than for：70 ~ 80 parts of ethylene propylene diene rubber；10 ~ 20 parts of powder low density polyethylene (LDPE)；5 ~ 10 parts of polystyrene resin；Age resistor
MB1 ~ 3 part；1 ~ 2 part of age resistor XH-1；3 ~ 5 parts of plumbous plumbate；3 ~ 5 parts of microwax；2 ~ 4 parts of TAIC；3 ~ 4 parts of DCP；Forge
Burn 40 ~ 60 parts of clay；20 ~ 30 parts of talcum powder；8 ~ 12 parts of paraffin oil.
Wherein, ethylene contents 60% ~ 70% in the ethylene propylene diene rubber, propylene content 30% ~ 40%, ENB contents be 2% ~
5%；3 ~ 6g/10min of melt index scope of the powder low density polyethylene (LDPE)；The polystyrene resin, which is used to improve, to be formulated
Dielectric properties, improve material insulating properties；The paraffin oil, flash-point need to reach 280 ~ 300 DEG C, it is ensured that in high pressure use condition
Under, paraffin oil will not fast transferring volatilizees because of cable temperature rise, influences material softness；The microwax, fusing point is up to
90 DEG C, it is ensured that when cable is run below 90 DEG C, microwax can continue, in insulating surface formation diaphragm, to prevent insulating materials
Contacted with the bad air such as oxygen, ozone.
The technology contents of the application are described in detail with specific embodiment below.
Specific embodiment 1
From 70 parts of ethylene propylene diene rubber, 20 parts of powder low density polyethylene (LDPE), 5 parts of polystyrene resin, 1 part of antioxidant MB is prevented
Old 1 part of agent XH-1,3 parts of plumbous plumbate, 3 parts of microwax, 2 parts of TAIC, 3 parts of DCP, 40 parts of calcinated argil, talcum powder 30
Part, 8 parts of paraffin oil.In one section of mixing process, melting temperature need to reach 140 DEG C, and filter glue is the mesh of filter screen mesh number 80.Squeezed in even sulphur
During going out, extruder temperature is set as 65 ~ 90 DEG C, the mesh of filter screen mesh number 120 used in extruder, sulfuration steam pressure 1.3MPa,
Hauling speed 10m/min obtains finished product.Finished cable soaks pressure-resistant 90kV, and 15min does not puncture；Impulse withstand voltage 250kV, ± 10 times
Do not puncture；Partial discharge 0.88pC under the conditions of 52kV.
Specific embodiment 2
From 75 parts of ethylene propylene diene rubber, 15 parts of powder low density polyethylene (LDPE), 8 parts of polystyrene resin, 2 parts of antioxidant MB is prevented
Old 1.5 parts of agent XH-1,4 parts of plumbous plumbate, 4 parts of microwax, 3 parts of TAIC, 3.5 parts of DCP, 50 parts of calcinated argil, talcum powder
25 parts, 10 parts of paraffin oil.In one section of mixing process, melting temperature need to reach 140 DEG C, and filter glue is the mesh of filter screen mesh number 100.In even sulphur
In extrusion, extruder temperature is set as 65 ~ 90 DEG C, the mesh of filter screen mesh number 120 used in extruder, sulfuration steam pressure
1.4MPa, hauling speed 12m/min obtains finished product.Finished cable soaks pressure-resistant 90kV, and 15min does not puncture；Impulse withstand voltage
250kV, does not puncture for ± 10 times；Partial discharge 0.74pC under the conditions of 52kV.
Specific embodiment 3
From 80 parts of ethylene propylene diene rubber, 20 parts of powder low density polyethylene (LDPE), 10 parts of polystyrene resin, 3 parts of antioxidant MB,
Age resistor XH-1 2,5 parts of plumbous plumbate, 5 parts of microwax, 4 parts of TAI C, 4 parts of DCP, 60 parts of calcinated argil, talcum powder 30
Part, 12 parts of paraffin oil.In one section of mixing process, melting temperature need to reach 140 DEG C, and filter glue is the mesh of filter screen mesh number 120.Squeezed in even sulphur
During going out, extruder temperature is set as 65 ~ 90 DEG C, the mesh of filter screen mesh number 120 used in extruder, sulfuration steam pressure 1.5MPa,
Hauling speed 14m/min obtains finished product.Finished cable soaks pressure-resistant 90kV, and 15min does not puncture；Impulse withstand voltage 250kV, ± 10 times
Do not puncture；Partial discharge 0.56pC under the conditions of 52kV.
The contrast that the finished product properties of completion are matched in above three embodiment is as shown in table 1：
Table 1
Claims (4)
1. a kind of 45kv high pressures ethyl-propylene insulating materials, it is characterised in that：Raw material and weight ratio involved by active ingredient is made in it
For：70 ~ 80 parts of ethylene propylene diene rubber；10 ~ 20 parts of powder low density polyethylene (LDPE)；5 ~ 10 parts of polystyrene resin；Antioxidant MB 1 ~ 3
Part；1 ~ 2 part of age resistor XH-1；3 ~ 5 parts of plumbous plumbate；3 ~ 5 parts of microwax；2 ~ 4 parts of TAIC；3 ~ 4 parts of DCP；Calcinated argil
40 ~ 60 parts；20 ~ 30 parts of talcum powder；8 ~ 12 parts of paraffin oil.
2. a kind of 45kv high pressures ethyl-propylene insulating materials according to claim 1, it is characterised in that：The ethylene propylene diene rubber
Middle ethylene contents 60% ~ 70%, propylene content 30% ~ 40%, ENB contents are 2% ~ 5%.
3. a kind of 45kv high pressures ethyl-propylene insulating materials according to claim 1, it is characterised in that：The powder low-density is gathered
3 ~ 6g/10min of melt index scope of ethene.
4. a kind of 45kv high pressures ethyl-propylene insulating materials according to claim 1, it is characterised in that：The paraffin oil flash point is
280~300℃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710522792.2A CN107266798A (en) | 2017-06-30 | 2017-06-30 | A kind of 45kv high pressures ethyl-propylene insulating materials |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710522792.2A CN107266798A (en) | 2017-06-30 | 2017-06-30 | A kind of 45kv high pressures ethyl-propylene insulating materials |
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| CN107266798A true CN107266798A (en) | 2017-10-20 |
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| CN201710522792.2A Withdrawn CN107266798A (en) | 2017-06-30 | 2017-06-30 | A kind of 45kv high pressures ethyl-propylene insulating materials |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112466536A (en) * | 2020-12-01 | 2021-03-09 | 扬州市缆讯电气技术服务有限公司 | Jet flame and hydrocarbon flame resistant medium-voltage cable for offshore oil platform and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831115A (en) * | 2010-04-29 | 2010-09-15 | 江苏远洋东泽电缆股份有限公司 | Ethylene propylene rubber insulation material for longitudinal high-voltage watertight cable of ships and warships and production method thereof |
| CN102344612A (en) * | 2011-06-28 | 2012-02-08 | 江苏远洋东泽电缆股份有限公司 | Ethylene propylene rubber cable insulating material for ship and ocean use and manufacturing method thereof |
| CN102382377A (en) * | 2011-09-29 | 2012-03-21 | 江苏亨通电力电缆有限公司 | Medium-voltage ethylene propylene rubber insulating material and preparation method thereof |
| CN102532726A (en) * | 2011-12-14 | 2012-07-04 | 上海特缆电工科技有限公司 | Non-toxic and odorless ethylene propylene rubber cable material for submersible motor and preparation method thereof |
| CN104194167A (en) * | 2014-09-17 | 2014-12-10 | 朱忠良 | Halogen-free flame retardant heat-conducting wire insulating layer and wire |
| CN106317654A (en) * | 2016-08-22 | 2017-01-11 | 福建南平太阳电缆股份有限公司 | Ethylene propylene rubber insulation material for charging pile cables and preparation method of ethylene propylene rubber insulation material for charging pile cables |
-
2017
- 2017-06-30 CN CN201710522792.2A patent/CN107266798A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831115A (en) * | 2010-04-29 | 2010-09-15 | 江苏远洋东泽电缆股份有限公司 | Ethylene propylene rubber insulation material for longitudinal high-voltage watertight cable of ships and warships and production method thereof |
| CN102344612A (en) * | 2011-06-28 | 2012-02-08 | 江苏远洋东泽电缆股份有限公司 | Ethylene propylene rubber cable insulating material for ship and ocean use and manufacturing method thereof |
| CN102382377A (en) * | 2011-09-29 | 2012-03-21 | 江苏亨通电力电缆有限公司 | Medium-voltage ethylene propylene rubber insulating material and preparation method thereof |
| CN102532726A (en) * | 2011-12-14 | 2012-07-04 | 上海特缆电工科技有限公司 | Non-toxic and odorless ethylene propylene rubber cable material for submersible motor and preparation method thereof |
| CN104194167A (en) * | 2014-09-17 | 2014-12-10 | 朱忠良 | Halogen-free flame retardant heat-conducting wire insulating layer and wire |
| CN106317654A (en) * | 2016-08-22 | 2017-01-11 | 福建南平太阳电缆股份有限公司 | Ethylene propylene rubber insulation material for charging pile cables and preparation method of ethylene propylene rubber insulation material for charging pile cables |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112466536A (en) * | 2020-12-01 | 2021-03-09 | 扬州市缆讯电气技术服务有限公司 | Jet flame and hydrocarbon flame resistant medium-voltage cable for offshore oil platform and manufacturing method thereof |
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