CN102276933A - Medium-pressure insulated rubber with excellent performance and preparation method thereof - Google Patents
Medium-pressure insulated rubber with excellent performance and preparation method thereof Download PDFInfo
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- CN102276933A CN102276933A CN2011102354948A CN201110235494A CN102276933A CN 102276933 A CN102276933 A CN 102276933A CN 2011102354948 A CN2011102354948 A CN 2011102354948A CN 201110235494 A CN201110235494 A CN 201110235494A CN 102276933 A CN102276933 A CN 102276933A
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Abstract
The invention relates to medium-pressure insulated rubber with excellent performance and a preparation method thereof. The medium-pressure insulated rubber comprises the following components in parts by weight: 100 parts of ethylene-propylene monomer rubber, 30-50 parts of calcined clay, 1-3 parts of antioxidant, 2-5 parts of organic peroxide, 1-2 parts of coupling agent, 5-10 parts of lubricant and 5-15 parts of processing oil. Due to the adoption of the prepared medium-pressure insulated rubber with excellent performance and the preparation method thereof, which are disclosed by the invention, not only is the technical problem of partial discharge of a medium-pressure cable prepared in the prior art solved, but also the technical problem of manufacturing the cable or an attachment with more excellent performance is solved.
Description
Technical field
The present invention relates to middle pressure electro-insulating rubber of a kind of excellent performance and preparation method thereof.
Background technology
Middle pressing of pressing electro-insulating rubber can be widely used in midium voltage cable and midium voltage cable annex is the product of a common use, and second third electro-insulating rubber has the use temperature of broad, can still keep various performances at-40 ℃-150 ℃.Second third electro-insulating rubber not only has all very little, excellent water resisting property, corona-resistance property, the snappiness of the heavy loss tangent of excellent electric performance, specific inductivity and Jie, and excellent shock resistance.So the various excellent properties of ethylene-propylene rubber(EPR) are still the hot issue that belongs to from now on development and use.
The used ethylene-propylene rubber(EPR) type of ethylene-propylene rubber(EPR) has two kinds in common low modulus and high-modulus ethylene-propylene rubber(EPR), can have different physical mechanical characteristics and electrical specification according to them, be applied to low pressure, softness, mobile cable, as Plastic-sheathed Cable and low pressure ore deposit cable, high pressure, softish midium voltage cable or annex are as pressing ore deposit cable and joint annex among the 35kV.
Summary of the invention
For the middle pressure second third electro-insulating rubber high pressure office that overcomes prior art for preparing lets slip big technical problem, can excellent more midium voltage cable or the annex of processability.The present invention proposes middle pressure electro-insulating rubber of a kind of excellent performance and preparation method thereof.Its each composition weight proportioning is as follows: 100 parts of ethylene propylene rubbers, nanometer are handled 30～50 parts of calcinated argils, 1～3 part of protective agent, 2～5 parts of organo-peroxides, 1～2 part of coupling agent, 5～10 parts of lubricants, 5～15 parts of treated oils.
Protective agent of the present invention is 2,2,4-trimethylammonium-1,2-dihyaroquinoline or 1,2-mercaptobenzimidazole; Organo-peroxide is a dicumyl peroxide, and coupling agent is vinyltrimethoxy silane or vinyl trimethoxy Ethoxysilane; Lubricant is paraffin or polyethylene wax, or the mixture of the two, recommends to use polyethylene wax.
The middle pressure electro-insulating rubber preparation method of a kind of excellent performance of the present invention is related process such as batching, banburying or kneading, granulation or rolling page or leaf.Because the middle pressure electro-insulating rubber of excellent performance of the present invention is applicable to the environment of 35kV and uses down, so to very strictness of requirement of material quality, forbid to participate in any impurity, must guarantee the cleaning of environment.Recommend to adopt ventilation installation to send into cleaned air passes, keep the malleation of production plant.Concrete operations are seen as follows: must guarantee that batching metering is accurately with accurate 1.; 2. must guarantee each component in banburying, kneading, open refining and the time mix; 3. can adopt single screw extrusion machine, two rank forcing machine or other granulating equipment, make the particle of φ 3mm * 4mm; Also can adopt rolling page or leaf machine or mill to roll into thickness 3mm, and cut into the suitable adhesive tape of size; 4. no matter be adhesive tape or particle, all must adopt moistureproof, dust-proof packing, in case when storage, transportation, cause contaminating impurity.
Performance of the present invention is:
| Test subject | Unit | Second third electro-insulating rubber |
| Pristine tensile strength 〉= | MPa | 10 |
| The original broken elongation 〉= | ％ | 350 |
| 20 ℃ of volume specific resistances 〉= | Ω·cm | 1.0×10 16 |
| Shore A hardness | 70～80 | |
| Mooney viscosity ML 1+4100℃≤ | 45 | |
| Thermal ageing | 135℃×168h | |
| The tensile strength velocity of variation | ％ | ±25 |
| The elongation at break velocity of variation | ％ | ±25 |
Embodiment
The present invention selects for use the ethylene propylene rubber mixture of soft, highly-flexible as Insulation Material, and the mixed rubber good electric property, satisfies performance requriementss such as midium voltage cable fully.
The specific embodiment 1-3 third electro-insulating rubber component is as follows:
The preparation method is as follows: earlier ethylene-propylene rubber(EPR) and protective agent are dropped into Banbury mixer, add nanometer and handle calcinated argil behind 95-100 ℃ of banburying 5min, add lubricant and treated oil again, continue to add coupling agent, discharging behind the banburying 2min behind the banburying 3min.Sizing material after the banburying is added organo-peroxide after thin-pass in the mill in 18 o'clock three times, play five triangle bags again, roll over page or leaf tie rod or cooling back granulation after the thin-pass five times; Or with the sizing material after the banburying through single screw extrusion machine or two rank forcing machine extruding pelletization, each is distinguished temperature and is: 80 ℃, 90 ℃, 100 ℃, 105 ℃, 110 ℃ of intake zones, 110-115 ℃ of head die oral region.Put in storage through cooling packing.
Technique effect of the present invention:
Adopt three-layer co-extruded with second third electro-insulating rubber of the present invention, each regional temperature of main frame is: 80 ℃, 90 ℃, 100 ℃, 105 ℃, 110 ℃ of intake zones, 110-115 ℃ of head die oral region, and curing temperature is: 180 ℃, 8 meters/minute of linear velocities, heating zone is 48 meters, the 30kV rubber insulation 50mm of trial-production
2Cable, its test-results is as follows:
The every performance requriements of this cable not only is better than GB/T 12706.2 standard codes, and is applicable to the occasion use of the soft mine cable of high pressure fully.
The invention is not restricted to the foregoing description, content of the present invention is described all can be implemented, and has described good result.
Claims (3)
1. middle pressure electro-insulating rubber of an excellent performance and preparation method thereof, its composition weight proportioning is: 100 parts of ethylene propylene rubbers, nano level silane are handled 30～50 parts of calcinated argils, 1～3 part of protective agent, 2～5 parts of organo-peroxides, 1～2 part of coupling agent, 5～10 parts of lubricants, 5～15 parts of treated oils.
2. the middle pressure electro-insulating rubber of a kind of excellent performance according to claim 1 is characterized in that described protective agent is 2,2,4-trimethylammonium-1,2-dihyaroquinoline or 1,2-mercaptobenzimidazole; Organo-peroxide is a dicumyl peroxide, and coupling agent is vinyltrimethoxy silane or vinyl trimethoxy Ethoxysilane; Lubricant is paraffin or polyethylene wax, or the mixture of the two, recommends to use polyethylene wax.
3. the preparation method of the middle pressure electro-insulating rubber of a kind of excellent performance according to claim 1 is characterized in that: related process such as batching, banburying or kneading, granulation or rolling page or leaf.Because the middle pressure electro-insulating rubber of excellent performance of the present invention is applicable to the environment of 35kV and uses down, so to very strictness of requirement of material quality, forbid to participate in any impurity, must guarantee the cleaning of environment.Recommend to adopt ventilation installation to send into cleaned air passes, keep the malleation of production plant.Concrete operations are seen as follows: must guarantee that batching metering is accurately with accurate 1.; 2. must guarantee each component in banburying, kneading, open refining and the time mix; 3. can adopt single screw extrusion machine, two rank forcing machine or other granulating equipment, make the particle of φ 4mm * 3mm; Also can adopt rolling page or leaf machine or mill to roll into thickness 2-3mm, and cut into the suitable adhesive tape of size; 4. no matter be adhesive tape or particle, all must adopt moistureproof, dust-proof packing, in case when storage, transportation, cause contaminating impurity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102354948A CN102276933A (en) | 2011-08-16 | 2011-08-16 | Medium-pressure insulated rubber with excellent performance and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102354948A CN102276933A (en) | 2011-08-16 | 2011-08-16 | Medium-pressure insulated rubber with excellent performance and preparation method thereof |
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| CN102276933A true CN102276933A (en) | 2011-12-14 |
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| CN2011102354948A Pending CN102276933A (en) | 2011-08-16 | 2011-08-16 | Medium-pressure insulated rubber with excellent performance and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102702624A (en) * | 2011-12-31 | 2012-10-03 | 深圳罗庚电气有限公司 | Ternary ethylenepropylene insulating sizing material for 35KV high-voltage cable accessory and preparation method for ternary ethylenepropylene insulating sizing material |
| CN103496067A (en) * | 2013-10-08 | 2014-01-08 | 江苏省电力公司常州供电公司 | Manufacturing method of ethylene-propylene-diene monomer (EPDM) rubber insulating glove |
| CN103483700B (en) * | 2013-10-08 | 2016-02-03 | 江苏省电力公司常州供电公司 | Terpolymer EP rubber insulating gloves and manufacture method thereof and application |
| CN109957179A (en) * | 2017-12-22 | 2019-07-02 | 特变电工股份有限公司 | Ultra-clean EP rubbers cable insulating material of 35kV and preparation method thereof |
| CN111607165A (en) * | 2020-06-24 | 2020-09-01 | 长缆电工科技股份有限公司 | High-expansion insulating ethylene-propylene rubber cold-contraction material, and preparation method and application thereof |
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| WO2007048422A1 (en) * | 2005-10-25 | 2007-05-03 | Prysmian Cavi E Sistemi Energia S.R.L. | Energy cable comprising a dielectric fluid and a mixture of thermoplastic polymers |
| CN101538390A (en) * | 2009-04-17 | 2009-09-23 | 安徽纵横高科电缆股份有限公司 | Ethyl-propylene insulating material for cable resisting temperature of 140 DEG C |
| 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 |
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2011
- 2011-08-16 CN CN2011102354948A patent/CN102276933A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007048422A1 (en) * | 2005-10-25 | 2007-05-03 | Prysmian Cavi E Sistemi Energia S.R.L. | Energy cable comprising a dielectric fluid and a mixture of thermoplastic polymers |
| CN101538390A (en) * | 2009-04-17 | 2009-09-23 | 安徽纵横高科电缆股份有限公司 | Ethyl-propylene insulating material for cable resisting temperature of 140 DEG C |
| 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 |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102702624A (en) * | 2011-12-31 | 2012-10-03 | 深圳罗庚电气有限公司 | Ternary ethylenepropylene insulating sizing material for 35KV high-voltage cable accessory and preparation method for ternary ethylenepropylene insulating sizing material |
| CN102702624B (en) * | 2011-12-31 | 2015-08-12 | 深圳市罗庚电气有限公司 | A kind of Ethylene Propylene Terpolymer insulation compound for 35KV HV cable accessories and preparation method thereof |
| CN103496067A (en) * | 2013-10-08 | 2014-01-08 | 江苏省电力公司常州供电公司 | Manufacturing method of ethylene-propylene-diene monomer (EPDM) rubber insulating glove |
| CN103496067B (en) * | 2013-10-08 | 2015-12-09 | 江苏省电力公司常州供电公司 | The manufacture method of ethylene propylene diene rubber insulating glove |
| CN103483700B (en) * | 2013-10-08 | 2016-02-03 | 江苏省电力公司常州供电公司 | Terpolymer EP rubber insulating gloves and manufacture method thereof and application |
| CN109957179A (en) * | 2017-12-22 | 2019-07-02 | 特变电工股份有限公司 | Ultra-clean EP rubbers cable insulating material of 35kV and preparation method thereof |
| CN109957179B (en) * | 2017-12-22 | 2021-12-07 | 特变电工股份有限公司 | 35kV ultra-clean ethylene propylene rubber cable insulating material and preparation method thereof |
| CN111607165A (en) * | 2020-06-24 | 2020-09-01 | 长缆电工科技股份有限公司 | High-expansion insulating ethylene-propylene rubber cold-contraction material, and preparation method and application thereof |
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Application publication date: 20111214 |