CN103102596B - A kind of cable for nuclear power station jacket insulation material and preparation method thereof - Google Patents
A kind of cable for nuclear power station jacket insulation material and preparation method thereof Download PDFInfo
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- CN103102596B CN103102596B CN201210455889.3A CN201210455889A CN103102596B CN 103102596 B CN103102596 B CN 103102596B CN 201210455889 A CN201210455889 A CN 201210455889A CN 103102596 B CN103102596 B CN 103102596B
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- nuclear power
- cable
- insulation material
- power station
- jacket insulation
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- 239000012774 insulation material Substances 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 16
- YHMYGUUIMTVXNW-UHFFFAOYSA-N 1,3-dihydrobenzimidazole-2-thione Chemical compound C1=CC=C2NC(S)=NC2=C1 YHMYGUUIMTVXNW-UHFFFAOYSA-N 0.000 claims abstract description 14
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000011787 zinc oxide Substances 0.000 claims abstract description 8
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 7
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 7
- 229920002943 EPDM rubber Polymers 0.000 claims abstract description 7
- PDQAZBWRQCGBEV-UHFFFAOYSA-N Ethylenethiourea Chemical compound S=C1NCCN1 PDQAZBWRQCGBEV-UHFFFAOYSA-N 0.000 claims abstract description 7
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 7
- 229910000410 antimony oxide Inorganic materials 0.000 claims abstract description 7
- AFZSMODLJJCVPP-UHFFFAOYSA-N dibenzothiazol-2-yl disulfide Chemical compound C1=CC=C2SC(SSC=3SC4=CC=CC=C4N=3)=NC2=C1 AFZSMODLJJCVPP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000428 dust Substances 0.000 claims abstract description 7
- 239000011521 glass Substances 0.000 claims abstract description 7
- CHZLKKJTMGYWAE-UHFFFAOYSA-N hexanedioic acid;propane-1,1-diol Chemical compound CCC(O)O.OC(=O)CCCCC(O)=O CHZLKKJTMGYWAE-UHFFFAOYSA-N 0.000 claims abstract description 7
- 230000036571 hydration Effects 0.000 claims abstract description 7
- 238000006703 hydration reaction Methods 0.000 claims abstract description 7
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 7
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 7
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000010445 mica Substances 0.000 claims abstract description 7
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 7
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000012188 paraffin wax Substances 0.000 claims abstract description 7
- 229920000728 polyester Polymers 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 7
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 claims abstract description 7
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000004073 vulcanization Methods 0.000 claims abstract description 7
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 6
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 3
- DXGLGDHPHMLXJC-UHFFFAOYSA-N oxybenzone Chemical compound OC1=CC(OC)=CC=C1C(=O)C1=CC=CC=C1 DXGLGDHPHMLXJC-UHFFFAOYSA-N 0.000 claims abstract 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical class O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 239000000440 bentonite Substances 0.000 claims description 9
- 229910000278 bentonite Inorganic materials 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- QZCLKYGREBVARF-UHFFFAOYSA-N Acetyl tributyl citrate Chemical compound CCCCOC(=O)CC(C(=O)OCCCC)(OC(C)=O)CC(=O)OCCCC QZCLKYGREBVARF-UHFFFAOYSA-N 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- JBSLOWBPDRZSMB-FPLPWBNLSA-N dibutyl (z)-but-2-enedioate Chemical compound CCCCOC(=O)\C=C/C(=O)OCCCC JBSLOWBPDRZSMB-FPLPWBNLSA-N 0.000 claims description 3
- REQPQFUJGGOFQL-UHFFFAOYSA-N dimethylcarbamothioyl n,n-dimethylcarbamodithioate Chemical compound CN(C)C(=S)SC(=S)N(C)C REQPQFUJGGOFQL-UHFFFAOYSA-N 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 230000032683 aging Effects 0.000 abstract description 6
- 239000011810 insulating material Substances 0.000 abstract description 3
- 239000003063 flame retardant Substances 0.000 abstract description 2
- 229910052736 halogen Inorganic materials 0.000 abstract description 2
- 150000002367 halogens Chemical class 0.000 abstract description 2
- 231100000053 low toxicity Toxicity 0.000 abstract description 2
- 239000000779 smoke Substances 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- 230000003679 aging effect Effects 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005250 beta ray Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000006317 isomerization reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- Organic Insulating Materials (AREA)
- Inorganic Insulating Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The invention discloses a kind of cable for nuclear power station jacket insulation material and preparation method thereof, does is it made up of the raw material of following weight parts: ethylene propylene diene rubber X4010? 95-105, haloflex 15-20, semi-reinforcing hydrocarbon black N774? 15-25, magnesia 2-3, ultra-violet absorber UV-9? 0.2-0.4, mica powder 30-35, antioxidant MB? 1-2, 2-mercapto benzimidazole 1-2, white oil 0.8-1, chlorinated paraffin wax 5-8, altax? 1-2, Vulcanization accelerator TMTD? 0.8-1, kaolin 15-25, adipic acid propanediol polyester 1-3, hydration zinc borate 2-4, glass dust 4-6, zinc oxide 0.8-1, modified alta-mud 2-3, antimony oxide 5-6, ethylene thiourea 4-6, the cable for nuclear power station jacket insulation material that the present invention produces has the combination properties such as excellent resistance to irradiation, fire-retardant, heat-resistant aging, good electric property, low smoke, zero halogen low toxicity, environment friendly and pollution-free, properties of product are stable, and the life-span reaches more than 60 years, can be widely used as the insulating materials of cables of nuclear power.
Description
Technical field
The present invention relates generally to a kind of rubber sleeve material and preparation method thereof, relates in particular to a kind of cable for nuclear power station jacket insulation material and preparation method thereof.
Background technology
Nuclear island of nuclear power station cable requires cable insulation material must have excellent heat aging property, radiation hardness ageing properties, fire resistance, wet-hot aging performance etc. Under nuclear environment, the cable of normal operation need stand γ, Beta-ray irradiation, and possesses the requirement of the normal operation of maintenance cable under accident conditions. Due to general polymerization thing under effect of irradiation, produce ionization or excite wait react after, further there is following chemical reaction: the degradation reaction of the large intermolecular cross-linking reaction being caused by irradiation, irradiation initiation, oxidation reaction, generation gaseous product, other is as isomerization etc., the degree difference that these reactions occur under different reaction rates, final result is that the molecular weight of polymeric material is more and more little, even loses the character of polymer. Conventional insulating materials is cross-linked polyolefin and EP rubbers material at present, by our improvement, heat aging performance, gamma ray resistant ability, resistance to ozone, weatherability and the electrical property of the EP rubbers of acrylate modification is improved greatly.
Summary of the invention
The object of the invention is exactly the defect in order to make up prior art, and a kind of cable for nuclear power station jacket insulation material is provided.
The present invention is achieved by the following technical solutions:
A kind of cable for nuclear power station jacket insulation material, is characterized in that:
Ethylene propylene diene rubber X401095-105, haloflex 15-20, semi-reinforcing hydrocarbon black N77415-25, magnesia 2-3, ultra-violet absorber UV-90.2-0.4, mica powder 30-35, antioxidant MB 1-2, 2-mercapto benzimidazole 1-2, white oil 0.8-1, chlorinated paraffin wax 5-8, altax 1-2, Vulcanization accelerator TMTD 0.8-1, kaolin 15-25, adipic acid propanediol polyester 1-3, hydration zinc borate 2-4, glass dust 4-6, zinc oxide 0.8-1, modified alta-mud 2-3, antimony oxide 5-6, ethylene thiourea 4-6,
Described method for preparing modified bentonite is: 10-15% salt acid soak 3-4 hour for bentonite, deionized water washing, then soak 3-4 hour with 10-12% sodium hydroxide solution, then with deionized water washing to neutral, oven dry; Bentonite after drying is put into water, add again ATBC, the 3-5% aluminium oxide of TM monex TM, the 2-3% of dibutyl maleate, the 1-2% of bentonite weight 2-3%, high speed 1200-1500 rev/min of stirring, obtain dispersion liquid, dispersion liquid ovendry power is broken into superfines, obtains described modified alta-mud.
A preparation method for cable for nuclear power station jacket insulation material, comprises the following steps:
(1) the ethylene propylene diene rubber X4010 of above-mentioned weight portion, haloflex, chloroplatinic acid, antioxidant MB, 2-mercapto benzimidazole, white oil, chlorinated paraffin wax, altax, Vulcanization accelerator TMTD being mixed and add banbury, is mixing 2-3 minute at 85-90 DEG C in temperature;
(3) adding semi-reinforcing hydrocarbon black N774, mica powder, kaolin, adipic acid propanediol polyester, hydration zinc borate, glass dust, the modified alta-mud of above-mentioned weight portion, is at 85-90 DEG C in temperature again, mixing 4-6 minute;
(4) adding antimony oxide, ethylene thiourea, magnesia, the zinc oxide of above-mentioned weight portion, is mixing 2-3 minute at 55-60 DEG C in temperature again, and discharging is cooling obtains described cable for nuclear power station jacket insulation material.
Advantage of the present invention is:
The cable for nuclear power station jacket insulation material that the present invention produces has the combination properties such as excellent resistance to irradiation, fire-retardant, heat-resistant aging, good electric property, low smoke, zero halogen low toxicity, environment friendly and pollution-free, properties of product are stable, and the life-span reaches more than 60 years, can be widely used as the insulating materials of cables of nuclear power.
Detailed description of the invention
Embodiment 1
A kind of cable for nuclear power station jacket insulation material, it is made up of following weight parts raw material:
Ethylene propylene diene rubber X4010105, haloflex 12, semi-reinforcing hydrocarbon black N77415-25, zinc oxide 3, chloroplatinic acid 2, mica powder 35, antioxidant MB 2,2-mercapto benzimidazole 2, white oil 0.8-1, chlorinated paraffin wax 8, altax 2, Vulcanization accelerator TMTD 1, kaolin 25, adipic acid propanediol polyester 3, hydration zinc borate 4, glass dust 4-6, zinc oxide 0.8, modified alta-mud 3, antimony oxide 6, ethylene thiourea 6;
Described method for preparing modified bentonite is: 15% salt acid soak 4 hours for bentonite, deionized water washing, then soak 4 hours with 12% sodium hydroxide solution, then with deionized water washing to neutral, oven dry; Bentonite after drying is put into water, add again the dibutyl maleate of bentonite weight 3%, 2% TM monex TM, 3% ATBC, 5% aluminium oxide, 1500 revs/min of stirrings at a high speed, obtain dispersion liquid, dispersion liquid ovendry power is broken into superfines, obtains described modified alta-mud.
A preparation method for low temperature resistant CABLE MATERIALS used for wind power generation, comprises the following steps:
(1) the ethylene propylene diene rubber X4010 of above-mentioned weight portion, haloflex, chloroplatinic acid, antioxidant MB, 2-mercapto benzimidazole, white oil, chlorinated paraffin wax, altax, Vulcanization accelerator TMTD being mixed and add banbury, is at 90 DEG C mixing 3 minutes in temperature;
(3) adding semi-reinforcing hydrocarbon black N774, mica powder, kaolin, adipic acid propanediol polyester, hydration zinc borate, glass dust, the modified alta-mud of above-mentioned weight portion, is at 90 DEG C in temperature again, mixing 6 minutes;
(4) adding antimony oxide, ethylene thiourea, magnesia, the zinc oxide of above-mentioned weight portion, is at 60 DEG C mixing 3 minutes in temperature again, and discharging is cooling obtains described cable for nuclear power station jacket insulation material.
Technical indicator:
Hot strength MPa12.6
Elongation at break %420
20 DEG C of insulaion resistance constants: minimum M Ω km4900
150 DEG C/30 days heat ageing after-drawing change rate of strength %13
Elongation at break rate of change %-13
Oxygen index (OI) %32
Elongation at break %90 after gamma-rays (200Mrad/70 DEG C) irradiation
High temperature resistant damp and hot electric property: hydrothermal aging insulation rate of change (110 DEG C, 30d) %-30
The minimum M Ω of insulaion resistance constant km65 at 156 DEG C.
Claims (2)
1. a cable for nuclear power station jacket insulation material, is characterized in that it is made up of the raw material of following weight parts:
Ethylene propylene diene rubber X401095-105, haloflex 15-20, semi-reinforcing hydrocarbon black N77415-25, magnesia 2-3, ultra-violet absorber UV-90.2-0.4, mica powder 30-35, antioxidant MB 1-2, 2-mercapto benzimidazole 1-2, white oil 0.8-1, chlorinated paraffin wax 5-8, altax 1-2, Vulcanization accelerator TMTD 0.8-1, kaolin 15-25, adipic acid propanediol polyester 1-3, hydration zinc borate 2-4, glass dust 4-6, zinc oxide 0.8-1, modified alta-mud 2-3, antimony oxide 5-6, ethylene thiourea 4-6,
Described method for preparing modified bentonite is: 10-15% salt acid soak 3-4 hour for bentonite, deionized water washing, then soak 3-4 hour with 10-12% sodium hydroxide solution, then with deionized water washing to neutral, oven dry; Bentonite after drying is put into water, add again ATBC, the 3-5% aluminium oxide of TM monex TM, the 2-3% of dibutyl maleate, the 1-2% of bentonite weight 2-3%, high speed 1200-1500 rev/min of stirring, obtain dispersion liquid, dispersion liquid ovendry power is broken into superfines, obtains described modified alta-mud.
2. a preparation method for cable for nuclear power station jacket insulation material as claimed in claim 1, is characterized in that comprising the following steps:
(1) the ethylene propylene diene rubber X4010 of above-mentioned weight portion, haloflex, ultra-violet absorber UV-9, antioxidant MB, 2-mercapto benzimidazole, white oil, chlorinated paraffin wax, altax, Vulcanization accelerator TMTD being mixed and add banbury, is mixing 2-3 minute at 85-90 DEG C in temperature;
(2) adding semi-reinforcing hydrocarbon black N774, mica powder, kaolin, adipic acid propanediol polyester, hydration zinc borate, glass dust, the modified alta-mud of above-mentioned weight portion, is at 85-90 DEG C in temperature again, mixing 4-6 minute;
(3) adding antimony oxide, ethylene thiourea, magnesia, the zinc oxide of above-mentioned weight portion, is mixing 2-3 minute at 55-60 DEG C in temperature again, and discharging is cooling obtains described cable for nuclear power station jacket insulation material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210455889.3A CN103102596B (en) | 2012-11-14 | 2012-11-14 | A kind of cable for nuclear power station jacket insulation material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210455889.3A CN103102596B (en) | 2012-11-14 | 2012-11-14 | A kind of cable for nuclear power station jacket insulation material and preparation method thereof |
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| Publication Number | Publication Date |
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| CN103102596A CN103102596A (en) | 2013-05-15 |
| CN103102596B true CN103102596B (en) | 2016-05-18 |
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| CN201210455889.3A Expired - Fee Related CN103102596B (en) | 2012-11-14 | 2012-11-14 | A kind of cable for nuclear power station jacket insulation material and preparation method thereof |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103265762B (en) * | 2013-05-23 | 2015-05-06 | 宝胜科技创新股份有限公司 | Low-smoke, halogen-free and flame-retardant double insulated inner layer material for cable in first area of AP1000 nuclear power station and preparation method thereof |
| CN105185439A (en) * | 2015-07-15 | 2015-12-23 | 繁昌县菲德通讯材料设计有限公司 | High-toughness, shock-absorption, wear-resistant and flame-retardant cable |
| CN105111595A (en) * | 2015-08-26 | 2015-12-02 | 安徽电缆股份有限公司 | Halogen-free low-smoke flame-retardant EPDM (ethylene-propylene-diene monomer) material for nuclear power station cables and preparation method thereof |
| CN105374439B (en) * | 2015-11-24 | 2017-09-15 | 安徽南洋新材料科技股份有限公司 | A kind of ship high-toughness wear-resistant damping cable |
| CN105778196A (en) * | 2016-04-26 | 2016-07-20 | 国网山东省电力公司莒南县供电公司 | Tool kit for power engineering |
| CN106188888A (en) * | 2016-07-26 | 2016-12-07 | 江苏亨通电力电缆有限公司 | Low-smoke and flame retardant type ethylene propylene diene rubber insulant |
| CN106188889A (en) * | 2016-07-26 | 2016-12-07 | 江苏亨通电力电缆有限公司 | Fire-type modified EPT rubber cable material and preparation technology thereof |
| CN106432920A (en) * | 2016-07-26 | 2017-02-22 | 江苏亨通电力电缆有限公司 | Anticorrosion pre-branched fire-resistant cable |
| CN106117826A (en) * | 2016-07-26 | 2016-11-16 | 江苏亨通电力电缆有限公司 | The super soft fireproof cable of pre-branch and manufacturing process thereof |
| CN107189245A (en) * | 2017-05-31 | 2017-09-22 | 晋源电气集团股份有限公司 | A kind of hot and humid environment power cable |
| CN108299751A (en) * | 2018-01-22 | 2018-07-20 | 储微微 | A kind of nuclear power station private cable sheath insulation material and its preparation process |
| CN112341718A (en) * | 2020-10-30 | 2021-02-09 | 安徽中联汽车零部件有限公司 | Preparation method of automobile dust cover with good resilience |
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| CN102516675A (en) * | 2011-11-21 | 2012-06-27 | 安徽蓝德集团股份有限公司 | Mining cable rubber sheath glue |
| CN102617942A (en) * | 2012-03-30 | 2012-08-01 | 无锡市远登电缆有限公司 | Ethylene-propylene-diene monomer rubber used for manufacturing wind energy cable and preparation method thereof |
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2012
- 2012-11-14 CN CN201210455889.3A patent/CN103102596B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102516675A (en) * | 2011-11-21 | 2012-06-27 | 安徽蓝德集团股份有限公司 | Mining cable rubber sheath glue |
| CN102617942A (en) * | 2012-03-30 | 2012-08-01 | 无锡市远登电缆有限公司 | Ethylene-propylene-diene monomer rubber used for manufacturing wind energy cable and preparation method thereof |
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Inventor after: Li Juan Inventor before: Jiang Rui |
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Effective date of registration: 20171009 Address after: Langfang City, Hebei Province, 065099 Heping Road, Guangyang District home today to 7 Building 4 unit 301 room Patentee after: Li Juan Address before: 244121 Tongling Jinqiao Industrial Park, Tongling, Anhui Patentee before: ANHUI JINQIAO CABLE Co.,Ltd. |
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