CN103113640A - High-performance freezing-resistant and flame-retardant chloroprene rubber covering material - Google Patents
High-performance freezing-resistant and flame-retardant chloroprene rubber covering material Download PDFInfo
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- CN103113640A CN103113640A CN2013100315670A CN201310031567A CN103113640A CN 103113640 A CN103113640 A CN 103113640A CN 2013100315670 A CN2013100315670 A CN 2013100315670A CN 201310031567 A CN201310031567 A CN 201310031567A CN 103113640 A CN103113640 A CN 103113640A
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Abstract
The invention discloses a high-performance freezing-resistant and flame-retardant chloroprene rubber covering material which comprises the following raw materials in parts by weight: chloroprene rubber CR3221, zinc oxide, magnesium oxide, accelerator TMTD, accelerator DM, accelerator NA-22, stearic acid, microcrystalline wax, anti-aging agent ODA-40, antimony trioxide, tritolyl phosphate, 2500-mesh talcum powder, N550 carbon black, dioctyl sebacate, bis(P,P-bis-ethylhexyl diphosphato)ethanediolato titanate, N,N'-m-phenylenedimaleimide and modified meerschaum. The freezing resistance of the high-performance freezing-resistant and flame-retardant chloroprene rubber covering material is high, and the low temperature resistance can reach -40 DEG C, while common chloroprene rubber has the freezing resistance of only -30 DEG C and can not be applicable to movable cables in cold areas.
Description
Technical field
The present invention relates generally to a kind of rubber sheath material, relates in particular to the cold-resistant flame-retardant chloroprene rubber sheath material of a kind of high-performance.
Background technology
As everyone knows, chloroprene rubber is self-complementary epistasis rubber preferably, adds their polarity, and Intermolecular Forces is larger, and its its molecule when stretching is difficult for slippage, is difficult for chain rupture, has larger drawing force and higher tearing toughness.Adding it has resistance to fatigue, elasticity, wear resistance, oil-proofness, resistance to air loss and ageing-resistant and ozone resistance preferably, extensively is used as the sheath bed of material of cable.But chloroprene rubber is crystal type rubber, its unvulcanized rubber just can produce crystallization after long-term storage, hardness increases, and unvulcanized rubber staging life, is short after coordinating, even under 30 ℃ of natural condition, its shelf-time can not surpass a week, otherwise the just easy incipient scorch of sizing material, plasticity descends, mobility descends, and extrudes roughly, loses gradually processing characteristics.And its winter hardiness is relatively poor, and without the sizing material that adds cold-resistant agent, its cold-resistant temperature is just low is exactly-30 ℃, can't adapt to the use under mal-condition more.It is easy roll banding that chloroprene rubber also has a shortcoming, and when it refined glue in mill, roll banding was very serious, removes so that equipment must stop the chloroprene rubber that is bonded at above roller, tends to like this affect the incipient scorch of production schedule and glue.For this kind situation, the cold-resistant flame-retardant chloroprene rubber of my company's a kind of high-performance of exploitation.This kind neoprene mixed rubber can mix and add vulcanizing agent in the Banbury mixer the inside, it is difficult for roll banding when rolling over sheet in mill, and this kind epoxy glue has a cold tolerance after sulfuration good, and flame retardant properties is high, and the time of depositing is long, intensity is high, tear resistance is good, and salt fog resistance is good, smooth in appearance, be difficult for incipient scorch, the characteristics such as easy processing.
Summary of the invention
The object of the invention is exactly in order to make up the defective of prior art, provides that a kind of to have a cold tolerance good, and flame retardant properties is high, and the time of depositing is long, intensity is high, and tear resistance is good, and salt fog resistance is good, smooth in appearance is difficult for incipient scorch, easily the cold-resistant flame-retardant chloroprene rubber sheath material of a kind of high-performance of processing.
The present invention is achieved by the following technical solutions:
A kind of high-performance flame-retardant chloroprene rubber sheath material that resists cold, it is comprised of the raw material of following weight part:
Chloroprene rubber CR3221 90-100
Zinc oxide 4-5
Magnesium oxide 3-5
Vulcanization accelerator TMTD 0.75-1
Altax 0.8-1
Accelerant N A-22 0.60-0.70
Stearic acid 1-2
Microcrystalline wax 3-4.5
Anti-aging agent ODA-40 3-4
Antimonous oxide 55-65
Tritolyl Phosphate 10-15
5000 purpose talcum powder 10-15
N550 carbon black 25-35
Dioctyl sebacate 20-25
Di(dioctylpyrophosphato) ethylene titanate 0.7-0.9
N, a N '-penylene bismaleimides 1-2
Modified meerschaum 2-3
The preparation method of described modified meerschaum is: sepiolite is added in (1.0-1.2) g/L potassium permanganate solution, 8-10% sodium hydroxide solution and soak, remove impurity, then filtration washing is neutral, calcine 400-450 ℃, 1 hour, grind and be powder, the quartz sand nanometer powder that adds again powder weight 1-2%, the N of 1-2%, the ferrocene of N '-methylene-bisacrylamide, 1-2% mixes in the lump, heats 60-70 ℃, keeps 50-60 minute, cross the hot steam of 400-600 ℃ and process, then high speed dispersion 10-20 minute.
Advantage of the present invention is:
1, the cold-resistant flame-retardant chloroprene rubber sheath material of a kind of high-performance that provides of the present invention, its winter hardiness is high, and its resistance to low temperature can reach-40 ℃, and the winter hardiness of common chloroprene rubber only has-30 ℃, the use of the regional removal cable that can't season oneself to cold;
2, the cold-resistant flame-retardant chloroprene rubber sheath material of a kind of high-performance that provides of the present invention, waiting time is long, can deposit one-year age under 40 ℃ of envrionment temperatures, and incipient scorch and sulfuration can not occur in its sizing material, extrude smooth in appearance.
3, the cold-resistant flame-retardant chloroprene rubber sheath material of a kind of high-performance that provides of the present invention, flame retardant properties is high, and its oxygen index can reach 42% left and right, has greatly improved fire-retardant rank and the scope of application of cable.
4, the cold-resistant flame-retardant chloroprene rubber sheath material of a kind of high-performance that provides of the present invention, its intensity is high, and tear resistance is good, and its tensile strength can reach 16.0N/mm
2Above, tearing strength is up to the 13.1N/mm left and right, and high tensile strength has improved cable load-carrying load.Larger tearing strength has improved cable wear resisting property and anti-torsional bending performance.
5, the cold-resistant flame-retardant chloroprene rubber sheath material of a kind of high-performance that provides of the present invention, resistance to salt(spray)fog is high, it is at 90 ℃, contain in the NaCl30g/L aqueous solution, experience 672 hours, its tensile strength and elongation at break larger variation can not occur than virgin state, are suitable for very much in the larger environment of anti-mist to use.
Embodiment
Embodiment 1
A kind of high-performance flame-retardant chloroprene rubber sheath material that resists cold, it is comprised of the raw material of following weight part (kilogram):
Chloroprene rubber CR3221 100
Zinc oxide 5
Magnesium oxide 3
Vulcanization accelerator TMTD 0.75
Altax 0.8
Accelerant N A-22 0.70
Stearic acid 2
Microcrystalline wax 4.5
Anti-aging agent ODA-40 3
Antimonous oxide 65
Tritolyl Phosphate 15
5000 purpose talcum powder 15
N550 carbon black 35
Dioctyl sebacate 25
Di(dioctylpyrophosphato) ethylene titanate 0.9
N, a N '-penylene bismaleimides 2
Modified meerschaum 3
The preparation method of described modified meerschaum is: sepiolite is added in (1.2) g/L potassium permanganate solution, 10% sodium hydroxide solution and soak, remove impurity, then filtration washing is neutral, calcine 450 ℃, 1 hour, grind and be powder, then add the quartz sand nanometer powder of powder weight 2%, 2% N, N '-methylene-bisacrylamide, 2% ferrocene mix in the lump, heat 70 ℃, keep 60 minutes, cross the hot steam of 600 ℃ and process, then high speed dispersion 20 minutes.
The preparation method of the cold-resistant flame-retardant chloroprene rubber sheath material of described high-performance is:
First CR3221 type chloroprene rubber, Vulcanization accelerator TMTD, DM are pressurizeed on Banbury mixer and plasticate, the 6min that plasticates, Banbury mixer pressure are 0.4Mpa, banburying chamber's temperature: 120 ℃;
Then Banbury mixer pressure is remained on 0.5Mpa, its order of addition(of ingredients) be the CR3221 chloroprene rubber of plasticating, 1801 type stearic acid, No. 80 microcrystalline waxes, anti-aging agent ODA-40 add together carry out mixing;
And then with half antimonous oxide, half N550 carbon black, half 2500 order talcum powder, half Tritolyl Phosphate, half dioctyl sebacate add together carry out mixing;
Add again second half antimonous oxide, second half N550 carbon black, second half 2500 order talcum powder, second half Tritolyl Phosphate, second half dioctyl sebacate, Di(dioctylpyrophosphato) ethylene titanate, N, a N '-penylene bismaleimides, modified meerschaum add together carry out mixing, each reinforced mixing time is 5min, mixing total time is 15min, it is in mixing process, and its temperature is 110 ℃;
Carry out binder removal after mixing completing, the glue that ejects thin-pass to the mill is mixing, plays three Heng Bao and two triangle bags when thin-pass, with the uniformity more of the composition in its rubber unvulcanizate, it must mill must open water coolant when thin-pass, mill roller temperature is 65 ℃, and the time is 4min;
Glue after thin-pass breaks into and adds sulphur when volume adds banburying, its method is: add Banbury mixer again mixing rubber unvulcanizate, when reaching 90 ℃ Deng melting temperature, add MgO, ZnO, NA-22, mixing time 0.5min, and the Banbury mixer after adding sulphur must open water coolant, in case melting temperature is over 95 ℃, avoid the rubber unvulcanizate incipient scorch and vulcanize in advance, then binder removal;
The glue that ejects is played three Heng Bao and two triangle bags again in the mill of opening water coolant, mix in sizing material with its vulcanizing agent, and then the next process compressing tablet is carried out in the clot blanking;
Roll spacing with mill during compressing tablet is adjusted to 8mm, 60 ℃ of roller temperature, and time 5min, and urgently involve in capable next process and roll over page;
To roll over page machine roll spacing 1.5mm, the roller temperature is 70 ℃, and the film that compressing tablet is got off adds a rolling page machine to roll over page, carries out scribing when rolling over page, marking the film width that comes is 110mm, thickness 1.5mm smears talcum powder when rolling over the page scribing, talcum powder can prevent that the film of stacking from boning, be beneficial to deposit, weigh at last and pack.
Performance test:
Claims (1)
1. the cold-resistant flame-retardant chloroprene rubber sheath material of a high-performance is characterized in that it is comprised of the raw material of following weight part:
Chloroprene rubber CR3221 90-100
Zinc oxide 4-5
Magnesium oxide 3-5
Vulcanization accelerator TMTD 0.75-1
Altax 0.8-1
Accelerant N A-22 0.60-0.70
Stearic acid 1-2
Microcrystalline wax 3-4.5
Anti-aging agent ODA-40 3-4
Antimonous oxide 55-65
Tritolyl Phosphate 10-15
2500 purpose talcum powder 10-15
N550 carbon black 25-35
Dioctyl sebacate 20-25
Di(dioctylpyrophosphato) ethylene titanate 0.7-0.9
N, a N '-penylene bismaleimides 1-2
Modified meerschaum 2-3
The preparation method of described modified meerschaum is: sepiolite is added in (1.0-1.2) g/L potassium permanganate solution, 8-10% sodium hydroxide solution and soak, remove impurity, then filtration washing is neutral, calcine 400-450 ℃, 1 hour, grind and be powder, the quartz sand nanometer powder that adds again powder weight 1-2%, the N of 1-2%, the ferrocene of N '-methylene-bisacrylamide, 1-2% mixes in the lump, heats 60-70 ℃, keeps 50-60 minute, cross the hot steam of 400-600 ℃ and process, then high speed dispersion 10-20 minute.
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| CN201310031567.0A CN103113640B (en) | 2013-01-28 | 2013-01-28 | High-performance freezing-resistant and flame-retardant chloroprene rubber covering material |
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| CN201310031567.0A CN103113640B (en) | 2013-01-28 | 2013-01-28 | High-performance freezing-resistant and flame-retardant chloroprene rubber covering material |
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| CN103113640B CN103113640B (en) | 2015-04-22 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103540052A (en) * | 2013-09-17 | 2014-01-29 | 晶锋集团股份有限公司 | Ultraviolet-proof electric wire and cable material and preparation method thereof |
| CN103756094A (en) * | 2014-01-10 | 2014-04-30 | 安徽瑞升电气科技有限公司 | Halogen-free flame-retardant polyphenyl ether cable material |
| CN103756064A (en) * | 2013-12-13 | 2014-04-30 | 芜湖金鹰机械科技开发有限公司 | Engine supercharger protective sleeve |
| CN105037857A (en) * | 2015-07-10 | 2015-11-11 | 芜湖风雪橡胶有限公司 | Cold-resistant rubber and preparation method therefor |
| CN106009128A (en) * | 2016-06-24 | 2016-10-12 | 山东永泰集团有限公司 | Cold-resistant rubber for tires of passenger cars |
| CN106847384A (en) * | 2017-01-16 | 2017-06-13 | 安徽凌宇电缆科技有限公司 | A kind of special coal-winning machine flat cable of girdle |
| CN107778592A (en) * | 2016-08-26 | 2018-03-09 | 特变电工股份有限公司 | Cryogenic vulcanization neoprene cable protective cover material and preparation method thereof, cable cover(ing) |
| CN108102174A (en) * | 2018-01-11 | 2018-06-01 | 安徽中鼎密封件股份有限公司 | A kind of environmental protection flame retardant automobile gear shift zipper fixing sleeve component |
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| CN102532633A (en) * | 2011-12-15 | 2012-07-04 | 安徽金桥电缆有限公司 | Chloroprene rubber sheath and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103540052A (en) * | 2013-09-17 | 2014-01-29 | 晶锋集团股份有限公司 | Ultraviolet-proof electric wire and cable material and preparation method thereof |
| CN103756064A (en) * | 2013-12-13 | 2014-04-30 | 芜湖金鹰机械科技开发有限公司 | Engine supercharger protective sleeve |
| CN103756094A (en) * | 2014-01-10 | 2014-04-30 | 安徽瑞升电气科技有限公司 | Halogen-free flame-retardant polyphenyl ether cable material |
| CN105037857A (en) * | 2015-07-10 | 2015-11-11 | 芜湖风雪橡胶有限公司 | Cold-resistant rubber and preparation method therefor |
| CN106009128A (en) * | 2016-06-24 | 2016-10-12 | 山东永泰集团有限公司 | Cold-resistant rubber for tires of passenger cars |
| CN107778592A (en) * | 2016-08-26 | 2018-03-09 | 特变电工股份有限公司 | Cryogenic vulcanization neoprene cable protective cover material and preparation method thereof, cable cover(ing) |
| CN106847384A (en) * | 2017-01-16 | 2017-06-13 | 安徽凌宇电缆科技有限公司 | A kind of special coal-winning machine flat cable of girdle |
| CN108102174A (en) * | 2018-01-11 | 2018-06-01 | 安徽中鼎密封件股份有限公司 | A kind of environmental protection flame retardant automobile gear shift zipper fixing sleeve component |
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| CN103113640B (en) | 2015-04-22 |
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Denomination of invention: High-performance freezing-resistant and flame-retardant chloroprene rubber covering material Effective date of registration: 20181024 Granted publication date: 20150422 Pledgee: Agricultural Bank of China Limited by Share Ltd Wuwei County branch Pledgor: Anhui Long'an Cable Group Co., Ltd. Registration number: 2018340000581 |
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