CN104356519A - Halogen-free low-smoke environment-friendly medium-pressure mining cable conductor shielding glue and preparation method thereof - Google Patents
Halogen-free low-smoke environment-friendly medium-pressure mining cable conductor shielding glue and preparation method thereof Download PDFInfo
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- CN104356519A CN104356519A CN201410630200.5A CN201410630200A CN104356519A CN 104356519 A CN104356519 A CN 104356519A CN 201410630200 A CN201410630200 A CN 201410630200A CN 104356519 A CN104356519 A CN 104356519A
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- shielding glue
- cable conductor
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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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- 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
- C08K2201/001—Conductive additives
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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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
- C08L2201/22—Halogen free composition
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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
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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Conductive Materials (AREA)
Abstract
The invention discloses a halogen-free low-smoke environment-friendly medium-pressure mining cable conductor shielding glue comprising the following components in parts by weight: 100-70 parts of ethylene propylene rubber, 0-30 parts of natural rubber, 80-130 parts of conductive carbon black, 3-5 parts of curing agent, 3-7 parts of co-curing agent, 5-10 parts of vulcanizing activator, 5-20 parts of plasticizer, 1-3 parts of anti-aging agent and 1-2 parts of dispersant. The invention also discloses a preparation method of the conductor shielding glue. The preparation method disclosed by the invention takes comprehensive consideration on conductivity, halogen-free performance, processability and the like, a selected formula system of the halogen-free low-smoke environment-friendly medium-pressure mining cable conductor internal shielding glue can achieve an excellent effect, the halogen-free low-smoke environment-friendly medium-pressure mining cable conductor internal shielding glue disclosed by the invention meets a requirement that the volume resistivity of an internal shielding glue is less than or equal to 100 ohm.cm of mining cables, and meanwhile, the halogen-free performance of the internal shielding glue can meet the requirements that the pH value is more than or equal to 4.3 and the conductivity is less than or equal to 10 microsecond/mm.
Description
Technical field
The invention belongs to power cable shield glue field, be specifically related to press mine cable conductor shielding glue and preparation method thereof in a kind of halide-free smokeless environmental protection.
Background technology
In recent years, the fast development of China's economic promotes shooting up of colliery industry, and coal production scale constantly expands, and production capacity improves constantly, and the voltage range of midium voltage cable use is moved also from 3.6/6kV in colliery, brings up to 8.7/10kV.Therefore, consider from the angle of mine safety, colliery midium voltage cable not only requires that insulating performance of cable is excellent, and good shielding material can improve the local discharging level of cable, reduces the generation of puncture of cable accident.
Coal Electricity cable generally has the feature of excellent insulation performance, simultaneously for the consideration to downhole safety, generally all requires that cable has good flame retardant properties, when underground fire can be avoided like this to occur, and the injury of the person.But current used mine cable, only can meet the flame retardant properties requirement to cable, consider few to the precipitation of the amount of being fuming, toxic gas during cable fire.
Stand in the angle ensureing mine safety, develop a kind of halide-free smokeless environmental protection mine cable, progressively meet mine cable and just seem particularly necessary to halide-free smokeless development, and halide-free smokeless conductor shielding glue is the conductor shield of mine cable, it is the important component part of pressing mine cable in halide-free smokeless.
Summary of the invention
Object of the present invention technical problem to be solved is just to provide a kind of conductivity requirement that can meet mine cable midium voltage cable conductor shielding glue, has again the conductor shielding glue of halide-free smokeless environmental-protecting performance.
Another object of the present invention is to provide a kind of preparation method of halide-free smokeless environmental protection mine cable conductor shielding glue.
Press mine cable conductor shielding glue in a kind of halide-free smokeless environmental protection of the present invention, its component and formula rate are as follows by weight: ethylene-propylene rubber(EPR) 100-70 part, natural rubber 0-30 part, graphitized carbon black 80-130 part, vulcanizing agent 3-5 part, cocuring agent 3-7 part, vulcanization leveller 5-10 part, softening agent 5-20 part, anti-aging agent 1-3 part and dispersion agent 1-2 part.
Further improvement, described natural rubber is standard rubber SCR-5 or SCR-10.
Further improvement, described ethylene-propylene rubber(EPR) is high ethylene content ethylene-propylene rubber(EPR), and wherein ethylene content is 60%-70%, and Third monomer content is 0.4%-4%.
Further improvement, described graphitized carbon black is one or more in graphitized carbon black BP2000, graphitized carbon black Printex XF2B, graphitized carbon black HG-4, Shawinigan black ACET.
Further improvement, described vulcanizing agent is dicumyl peroxide (DCP).
Further improvement, described cocuring agent is TAIC.
Further improvement, described vulcanization leveller is one or both in zinc oxide and stearic acid.
Further improvement, described softening agent is one or more in paraffin oil, carbon 5 petroleum resin.
Further improvement, described anti-aging agent is one or more in anti-aging agent RD, antioxidant 4010NA or antioxidant MB.
Further improvement, described dispersion agent is FS-210.
Press a preparation method for mine cable conductor shielding glue in halide-free smokeless environmental protection, comprise step as follows:
(1) plasticate: ethylene-propylene rubber(EPR) 100-70 part and natural rubber 0-30 part are plasticated respectively on a mill until, its roll spacing 2-4mm, roller temperature control, at 50-60 DEG C, obtains broken-(down)rubber after the 10-15min that plasticates;
(2) mixing: broken-(down)rubber obtained for step (1) to be dropped in Banbury mixer, banburying 1-2min; Then by graphitized carbon black 80-130 part, vulcanization leveller 5-10 part, softening agent 5-20 part, anti-aging agent 1-3 part and dispersion agent 1-2 part, banburying 5-7min, add in vulcanizing agent 3-5 part and cocuring agent 3-7 part input Banbury mixer again, mixing 2-3min, dump temperature controls at 110-125 DEG C, go out heavy-gage rubber sheet through turning refining, by thickness 8-10mm, to roll over page thickness be 1.4mm-1.6mm glue page through adding refining, obtains product halide-free smokeless conductor shielding glue page.
Beneficial effect of the present invention is:
The present invention is from conductivity, the aspects such as Halogen performance and processing characteristics consider, press the formula system of mine cable inner shield glue can reach splendid effect in the halide-free smokeless environmental protection selected, press mine cable inner shield glue both to meet in halogen-free low-voltage environmental protection of the present invention mine cable amasss resistivity≤100 Ω cm requirement (index with reference to JB/T10738-2007 voltage rating 35kV and following extruded insulation semiconductive shieldin material) to inner shield colloid, simultaneously, the Halogen performance of inner shield glue is made again to reach pH value >=4.3, specific conductivity≤10 μ s/mm requires (index is fire-retardant and fire-resistant wire and cable general rule with reference to GB/T19666-2005).
Accompanying drawing explanation
Fig. 1 is the different graphitized carbon black prepared of the embodiment of the present invention and second third, natural composite material volume specific resistance figure.
Embodiment
Embodiment 1
Press mine cable conductor shielding glue in a kind of halide-free smokeless environmental protection, its formula rate by weight: 70 parts, ethylene-propylene rubber(EPR), natural rubber (SCR-5) 10 parts, graphitized carbon black BP2000 70 parts, Shawinigan black ACET 30 parts, dicumyl peroxide (DCP) 5 parts, cocuring agent TAIC 3 parts, 7 parts, zinc oxide, stearic acid 3 parts, paraffin oil 15 parts, anti-aging agent RD 1 part, antioxidant MB 1 part, antioxidant 4010NA 1 part, dispersion agent FS-210 1 part.
Press the preparation method of mine cable conductor shielding glue in described halogen-free low-voltage environmental protection, concrete steps are:
(1) plasticate: ethylene-propylene rubber(EPR) and natural rubber SCR-5 are plasticated on a mill until, its roll spacing 2-4mm, roller temperature control is at 50-60 DEG C, and the 10-15min that plasticates obtains broken-(down)rubber;
(2) mixing: obtained broken-(down)rubber to be dropped in Banbury mixer, banburying 1-2min; Then open floating weight and add graphitized carbon black BP2000, Shawinigan black, zinc oxide, stearic acid, paraffin oil, anti-aging agent RD, antioxidant MB, antioxidant 4010NA, dispersion agent FS-210, banburying 5-7min, adding vulcanizing agent DCP and cocuring agent TAIC again drops in Banbury mixer, mixing 1-2min, and dump temperature controls at 110-125 DEG C, go out heavy-gage rubber sheet through turning refining, by thickness 8-10mm, to roll over page thickness be 1.4mm-1.6mm glue page through adding refining, obtains product halide-free smokeless conductor shielding glue page.
Embodiment 2
Press mine cable conductor shielding glue in a kind of halide-free smokeless environmental protection, its formula rate by weight: 80 parts, ethylene-propylene rubber(EPR), natural rubber (SCR-10) 20 parts, graphitized carbon black Printex XF2B 60 parts, Shawinigan black ACET 60 parts, dicumyl peroxide (DCP) 4 parts, cocuring agent is TAIC 4 parts, 8 parts, zinc oxide, stearic acid 2 parts, paraffin oil 20 parts, anti-aging agent RD 1 part, antioxidant MB 1 part, dispersion agent FS-210 1 part.
Press the preparation method of mine cable conductor shielding glue in described halide-free smokeless environmental protection, concrete steps are:
Plasticate: ethylene-propylene rubber(EPR) and natural rubber SCR-10 are plasticated on a mill until, its roll spacing 2-4mm, roller temperature control is at 50-60 DEG C, and the 10-15min that plasticates obtains broken-(down)rubber;
(2) mixing: obtained broken-(down)rubber to be dropped in Banbury mixer, banburying 1-2min; Then open floating weight and add graphitized carbon black Printex XF2B, Shawinigan black ACET, zinc oxide, stearic acid, paraffin oil, anti-aging agent RD, antioxidant MB, dispersion agent FS-210, banburying 5-7min, then add in vulcanizing agent DCP and cocuring agent TAIC input Banbury mixer, mixing 1-2min, dump temperature controls at 110-125 DEG C, goes out heavy-gage rubber sheet, to roll over page thickness be 1.4mm-1.6mm glue page through adding refining, obtains product halide-free smokeless conductor shielding glue page through turning refining, by thickness 8-10mm.
Embodiment 3:
Press mine cable conductor shielding glue in a kind of halide-free smokeless environmental protection, its formula rate by weight: 90 parts, ethylene-propylene rubber(EPR), natural rubber (SCR-10) 10 parts, graphitized carbon black BP2000 50 parts, graphitized carbon black Printex XF2B 40 parts, Shawinigan black ACET 30 parts, dicumyl peroxide (DCP) 4 parts, cocuring agent is TAIC 4 parts, 8 parts, zinc oxide, stearic acid 2 parts, paraffin oil 20 parts, anti-aging agent RD 1 part, antioxidant MB 1 part, dispersion agent FS-210 1 part.
Press the preparation method of mine cable conductor shielding glue in described halide-free smokeless environmental protection, concrete steps are:
Plasticate: ethylene-propylene rubber(EPR) and natural rubber SCR-10 are plasticated on a mill until, its roll spacing 2-4mm, roller temperature control is at 50-60 DEG C, and the 10-15min that plasticates obtains broken-(down)rubber;
(2) mixing: obtained broken-(down)rubber to be dropped in Banbury mixer, banburying 1-2min; Then open floating weight and add graphitized carbon black Printex XF2B, Shawinigan black ACET, zinc oxide, stearic acid, paraffin oil, anti-aging agent RD, antioxidant MB, dispersion agent FS-210, banburying 5-7min, then add in vulcanizing agent DCP and cocuring agent TAIC input Banbury mixer, mixing 1-2min, dump temperature controls at 110-125 DEG C, goes out heavy-gage rubber sheet, to roll over page thickness be 1.4mm-1.6mm glue page through adding refining, obtains product halide-free smokeless conductor shielding glue page through turning refining, by thickness 8-10mm.
Conductor shielding glue performance index obtained by embodiment 1,2,3 are as shown in table 1:
Table 1 conductor shielding colloidality energy
| Project | Technical requirements | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Tensile strength MPa >= | 6.5 | 6.5 | 8.2 | 8.0 |
| Elongation at break % >= | 200 | 375 | 285 | 265 |
| Volume specific resistance Ω cm≤ | 100 | 380 | 50 | 23 |
| PH value weighting >= | 4.3 | 4.9 | 5.3 | 5.0 |
| Specific conductivity weighted value μ s/mm≤ | 10 | 2.67 | 2.89 | 2.80 |
| Hardness Shore A≤ | 85 | 70 | 75 | 78 |
| Mooney ML (1+4) 100℃ ≤ | 75 | 65 | 73 | 70 |
The invention provides in a kind of halide-free smokeless environmental protection and press mine cable conductor shielding glue and preparation method thereof; the above is only preferred implementation method of the present invention; should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention; can also make some improvement, these improvement also should be considered as protection scope of the present invention.
Claims (10)
1. press a mine cable conductor shielding glue in halide-free smokeless environmental protection, it is characterized in that: its component and formula rate are as follows by weight: ethylene-propylene rubber(EPR) 100-70 part, natural rubber 0-30 part, graphitized carbon black 80-130 part, vulcanizing agent 3-5 part, cocuring agent 3-7 part, vulcanization leveller 5-10 part, softening agent 5-20 part, anti-aging agent 1-3 part and dispersion agent 1-2 part.
2. press mine cable conductor shielding glue in halide-free smokeless environmental protection according to claim 1, it is characterized in that: described natural rubber is standard rubber SCR-5 or SCR-10.
3. press mine cable conductor shielding glue in halide-free smokeless environmental protection according to claim 1, it is characterized in that: described ethylene-propylene rubber(EPR) is high ethylene content ethylene-propylene rubber(EPR), and wherein ethylene content is 60%-70%, and Third monomer content is 0.4%-4%.
4. press mine cable conductor shielding glue in halide-free smokeless environmental protection according to claim 1, it is characterized in that: described graphitized carbon black is one or more in graphitized carbon black BP2000, graphitized carbon black Printex XF2B, graphitized carbon black HG-4, Shawinigan black ACET.
5. press mine cable conductor shielding glue in halide-free smokeless environmental protection according to claim 1, it is characterized in that: described vulcanizing agent is dicumyl peroxide.
6. press mine cable conductor shielding glue in halide-free smokeless environmental protection according to claim 1, it is characterized in that: described cocuring agent is TAIC.
7. press mine cable conductor shielding glue in halide-free smokeless environmental protection according to claim 1, it is characterized in that: described vulcanization leveller is one or both in zinc oxide and stearic acid.
8. press mine cable conductor shielding glue in halide-free smokeless environmental protection according to claim 1, it is characterized in that: described softening agent is one or more in paraffin oil, carbon 5 petroleum resin.
9. press mine cable conductor shielding glue in halide-free smokeless environmental protection according to claim 1, it is characterized in that: described anti-aging agent is one or more in anti-aging agent RD, antioxidant 4010NA or antioxidant MB.
10. press a preparation method for mine cable conductor shielding glue in the halide-free smokeless environmental protection as described in claim 1-9 any one, it is characterized in that: comprise step as follows:
(1) plasticate: ethylene-propylene rubber(EPR) 100-70 part and natural rubber 0-30 part are plasticated respectively on a mill until, its roll spacing 2-4mm, roller temperature control, at 50-60 DEG C, obtains broken-(down)rubber after the 10-15min that plasticates;
(2) mixing: the broken-(down)rubber that will obtain step (1) drops in Banbury mixer, banburying 1-2min; Then by graphitized carbon black 80-130 part, vulcanization leveller 5-10 part, softening agent 5-20 part, anti-aging agent 1-3 part and dispersion agent 1-2 part, banburying 5-7min, add in vulcanizing agent 3-5 part and cocuring agent 3-7 part input Banbury mixer again, mixing 2-3min, dump temperature controls at 110-125 DEG C, go out heavy-gage rubber sheet through turning refining, by thickness 8-10mm, to roll over page thickness be 1.4mm-1.6mm glue page through adding refining, obtains product halide-free smokeless conductor shielding glue page.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410630200.5A CN104356519A (en) | 2014-11-11 | 2014-11-11 | Halogen-free low-smoke environment-friendly medium-pressure mining cable conductor shielding glue and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410630200.5A CN104356519A (en) | 2014-11-11 | 2014-11-11 | Halogen-free low-smoke environment-friendly medium-pressure mining cable conductor shielding glue and preparation method thereof |
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| CN104356519A true CN104356519A (en) | 2015-02-18 |
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| CN201410630200.5A Pending CN104356519A (en) | 2014-11-11 | 2014-11-11 | Halogen-free low-smoke environment-friendly medium-pressure mining cable conductor shielding glue and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112820449A (en) * | 2020-12-29 | 2021-05-18 | 贵州新曙光电缆有限公司 | Crosslinked polyethylene insulation halogen-free low-smoke flame-retardant rat and termite-proof medium-voltage power cable |
Citations (5)
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|---|---|---|---|---|
| DD277079A1 (en) * | 1988-11-16 | 1990-03-21 | Oberspree Kabelwerke Veb K | CONDUCTIVE RUBBER CONNECTION FOR CONNECTING CABLES AND CABLES |
| US6491849B1 (en) * | 2001-01-22 | 2002-12-10 | General Cable Technologies Corp. | High performance power cable shield |
| CN1783359A (en) * | 2004-12-02 | 2006-06-07 | 上海电缆研究所 | Screening material for medium voltage rubber insulation cable |
| CN103524964A (en) * | 2013-10-24 | 2014-01-22 | 苏州市双鑫新材料科技有限公司 | Preparation process of semiconductive internal shielding material for scorch preventing cable |
| CN103819820A (en) * | 2014-02-10 | 2014-05-28 | 上海蓝昊电气江苏有限公司 | Mine cable rubber sheath conductor shielding material |
-
2014
- 2014-11-11 CN CN201410630200.5A patent/CN104356519A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD277079A1 (en) * | 1988-11-16 | 1990-03-21 | Oberspree Kabelwerke Veb K | CONDUCTIVE RUBBER CONNECTION FOR CONNECTING CABLES AND CABLES |
| US6491849B1 (en) * | 2001-01-22 | 2002-12-10 | General Cable Technologies Corp. | High performance power cable shield |
| CN1783359A (en) * | 2004-12-02 | 2006-06-07 | 上海电缆研究所 | Screening material for medium voltage rubber insulation cable |
| CN103524964A (en) * | 2013-10-24 | 2014-01-22 | 苏州市双鑫新材料科技有限公司 | Preparation process of semiconductive internal shielding material for scorch preventing cable |
| CN103819820A (en) * | 2014-02-10 | 2014-05-28 | 上海蓝昊电气江苏有限公司 | Mine cable rubber sheath conductor shielding material |
Non-Patent Citations (1)
| Title |
|---|
| 曾正明: "《橡胶制品速查手册》", 31 May 2008, 机械工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112820449A (en) * | 2020-12-29 | 2021-05-18 | 贵州新曙光电缆有限公司 | Crosslinked polyethylene insulation halogen-free low-smoke flame-retardant rat and termite-proof medium-voltage power cable |
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