CN103819820A - Mine cable rubber sheath conductor shielding material - Google Patents
Mine cable rubber sheath conductor shielding material Download PDFInfo
- Publication number
- CN103819820A CN103819820A CN201410045855.6A CN201410045855A CN103819820A CN 103819820 A CN103819820 A CN 103819820A CN 201410045855 A CN201410045855 A CN 201410045855A CN 103819820 A CN103819820 A CN 103819820A
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- parts
- shielding material
- conductor shielding
- mine cable
- cable rubber
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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
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Conductive Materials (AREA)
Abstract
The invention discloses a mine cable rubber sheath conductor shielding material, which is prepared from the following raw materials in parts by weight: 100 parts of ethylene propylene diene monomer, 70 to 90 parts of imported conductive carbon black, 2 to 5 parts of cross-linking agent, 2 to 6 parts of assistant cross-linking agent, 10 to 40 parts of plasticizer, 1 to 5 parts of anti-aging agent, 1 to 5 parts of flowing dispersing aid and 5 to 30 parts of colloidal graphite powder. A high-voltage mine cable prepared from the mine cable rubber sheath conductor shielding material has the advantages of uniform conductor surface electric field, non-strippability of a conductor shielding layer and an insulating layer, high ozone resistance and high thermal aging resistance.
Description
Technical field
The present invention relates to a kind of excellent electrical properties and resistance to ozone, the good mine cable rubber conductor shielding material of thermal-oxidative aging property.
Background technology
Along with the development of colliery industry, the safety problem in colliery is subject to increasing attention, from the angle of coal electric cable, requires high-tension cable must have good electric property, the accident such as in use do not discharge, puncture.Therefore, cable, except having safe and reliable insulating material, also must have the good conductor shielding material of electric property and aging resistance.
Existing conductor shielding technology is generally the form of wrapped semi-conductive cloth tape outside conductor, play thus certain uniform electric field effect, but between the insulated wire cores insulation layer of this method gained and conductor shield, always there are some air gaps, and wrapped more open, wrappedly always make surface of insulating layer rough after overlapping, these all very likely cause that partial discharge quantity is excessive and cause cable in use to puncture.
More existing technology adopt paracril as body material in order to improve the conductivity of conductor shielding material, but paracril ozone resistance is poor, very easily aging cracking and lose shielding effect under ozonization, and paracril and ethylene-propylene rubber(EPR) polarity difference are large, the interaction face of the two is not easy to be bonded together closely, therefore may there is air gap and cause office put not up to standard.
Summary of the invention
Object of the present invention is exactly to overcome some shortcomings that exist in above-mentioned background technology, provides a kind of formula factors simple, and actual production processing performance is good, and the good mine cable rubber conductor shielding material of product performance.
For achieving the above object, disclosed a kind of mine cable rubber conductor shielding material, it makes the related raw material of effective constituent and counterweight ratio is:
100 parts of terpolymer EP rubbers;
70 ~ 90 parts of import graphitized carbon blacks;
2 ~ 5 parts of linking agents;
2 ~ 6 parts of additional crosslinkers;
10 ~ 40 parts, softening agent;
1 ~ 5 part, anti-aging agent;
1 ~ 5 part of flow dispersion auxiliary agent;
5 ~ 30 parts, oildag powder.
As preferably, use peroxidation diisopropyl benzene as described linking agent.
As preferably, use TAIC as described additional crosslinker.
As preferably, use paraffin oil as described softening agent.
Compared with prior art, disclosed a kind of mine cable rubber conductor shielding material, tool has the following advantages:
Excellent ozone-resistant aging property, because only there are two keys of utmost point low levels in the terpolymer EP rubber of selecting in material, this makes material of the present invention have very excellent ozone resistance, and under the ozone concn and digestion time effect of GB7594.8 defined, there is not any small crackle;
Good not removability, the terpolymer EP rubber adopting in the present invention and insulation layer are same material, therefore they have extraordinary bond properties, have guaranteed not exist between conductor shield and insulation layer any air gap;
Excellent conductivity, adopts import graphitized carbon black in the present invention, have purity high, and the advantage such as conduct electricity very well, use less amount just can form fairly perfect conductive channel, and minimum foreign matter content has also guaranteed the quality of shielding material in material;
Good processing characteristics, has adopted oildag powder, and it has advantages of high lubricated, high conduction, guaranteeing to have guaranteed that again it has good conductivity in shielding material has good flowing property;
Excellent cable quality, adopts oxide compound sulfuration, guarantee can not produce any impact to conductor in sulfidation, and guarantee conductor conductivity, and this vulcanization system has good heatproof air aging performance, extend cable work-ing life.
Specific embodiment
To technical scheme of the present invention be carried out to clear, complete description below.
In mine cable rubber conductor shielding material of the present invention, adopt terpolymer EP rubber to replace the body material of paracril of the prior art as material, adopt oxidation diisopropyl benzene to replace sulfur cross-linking of the prior art as linking agent, coordinate the use of softening agent paraffin oil and weighting agent oildag powder simultaneously.Terpolymer EP rubber has good ozone resistance, and under the ozone concn and digestion time condition of GB7594.8 defined, conductor shielding material surface is without any crackle, the desired insulation rubber performance of the standard that reaches.Although MT818 does not have any aging resistance requirement to conductor shielding, once screen layer cracks under the effect of ozone, it will lose the effect of shielding and causes cable to break down so.In addition, in existing technology, conductor shielding and insulation layer can be peeled off mutually, and the hidden danger that this makes to exist in both interfaces air gap, very likely in use causes and puncture, and occurs serious accident.
Although what the benefit of sulfur cross-linking was mechanical property than peroxidation diisopropyl benzene is good, but in cable, sulphur easily causes copper conductor blackout, affects conductivity, and poor compared with peroxidation diisopropyl benzene of the aging resistance of sulfur cross-linking goods, and compression set poor performance.Meanwhile, the present invention adopts peroxidation diisopropyl benzene, has improved the coke burning performance of material, makes it under the extrusion condition of 100 ℃, have good operability.
Softening agent paraffin oil and oildag powder are used in conjunction with, improve the process industrial art performance of material monolithic, in formula, use more graphitized carbon black, cause the mixing difficulty of material, mixing electric current is too high and material is difficult disperses moulding, and adds excessive paraffin oil can affect the conductivity of material, but adopt softening agent paraffin oil to mix use with oildag powder, utilize the high lubricated characteristic of oildag powder, reduce the use of paraffin oil, thereby reduce the resistance of material.
Specific embodiment 1
Select 100 parts of terpolymer EP rubbers, 70 parts of import graphitized carbon blacks, 2 parts of peroxidation diisopropyl benzenes, TAIC2 part, 10 parts of paraffin oils, 1 part, anti-aging agent, 1 part of flow dispersion auxiliary agent, 5 parts, oildag powder, by terpolymer EP rubber, import graphitized carbon black, paraffin oil, anti-aging agent, flow dispersion auxiliary agent, oildag powder drops into mixing 2 ~ 3min in Banbury mixer, mention floating weight and carry out sweeping through the material, repeat twice, then continue mixing until temperature and show that 110 ℃ are disposed to mill by rubber unvulcanizate to turn over bag mixing, then do not open bar slice, after cooling, again drop into Banbury mixer and add peroxidation diisopropyl benzene and TAIC, mixing time 1 ~ 2min, grind page machine at three rollers and open bar slice, finished product is placed the company of input sulphur workshop use afterwards in 16 hours, in company's sulphur extrusion, extruder temperature is set as 80 ~ 100 ℃, sulfuration steam pressure 1.4MPa, pulling speed 17m/min obtains finished product.
Specific embodiment 2
Select 100 parts of terpolymer EP rubbers, 80 parts of import graphitized carbon blacks, 3 parts of peroxidation diisopropyl benzenes, 4 parts of TAIC, 25 parts of paraffin oils, 3 parts, anti-aging agent, 3 parts of flow dispersion auxiliary agents, 17 parts, oildag powder, by terpolymer EP rubber, import graphitized carbon black, paraffin oil, anti-aging agent, flow dispersion auxiliary agent, oildag powder drops into mixing 2 ~ 3min in Banbury mixer, mention floating weight and carry out sweeping through the material, repeat twice, then continue mixing until temperature and show that 110 ℃ are disposed to mill by rubber unvulcanizate to turn over bag mixing, then do not open bar slice, after cooling, again drop into Banbury mixer and add peroxidation diisopropyl benzene and TAIC, mixing time 1 ~ 2min, grind page machine at three rollers and open bar slice, finished product is placed the company of input sulphur workshop use afterwards in 16 hours.Connect in sulphur extrusion, extruder temperature is set as 80 ~ 100 ℃, sulfuration steam pressure 1.3MPa, and pulling speed 15m/min obtains finished product.
Specific embodiment 3
Select 100 parts of terpolymer EP rubbers, 90 parts of import graphitized carbon blacks, 5 parts of peroxidation diisopropyl benzenes, 6 parts of TAIC, 40 parts of paraffin oils, 5 parts, anti-aging agent, 5 parts of flow dispersion auxiliary agents, 30 parts, oildag powder, by terpolymer EP rubber, import graphitized carbon black, paraffin oil, anti-aging agent, flow dispersion auxiliary agent, oildag powder drops into mixing 2 ~ 3min in Banbury mixer, mention floating weight and carry out sweeping through the material, repeat twice, then continue mixing until temperature and show that 110 ℃ are disposed to mill by rubber unvulcanizate to turn over bag mixing, then do not open bar slice, after cooling, again drop into Banbury mixer and add peroxidation diisopropyl benzene and TAIC, mixing time 1 ~ 2min, grind page machine at three rollers and open bar slice, finished product is placed the company of input sulphur workshop use afterwards in 16 hours, connect in sulphur extrusion, extruder temperature is set as 80 ~ 100 ℃, sulfuration steam pressure 1.2MPa, pulling speed 13m/min obtains finished product.
The finished product properties that in above-mentioned three embodiment, proportioning completes and GB contrast are as shown in table 1:
Table 1
| Project | National standard | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Tensile strength MPa >= | 6.5 | 10.4 | 11.6 | 12.9 |
| Elongation % >= | 200 | 306 | 286 | 253 |
| Resistance Ω≤ | 3000 | 2200 | 1200 | 900 |
| Ozone ageing | Flawless | Flawless | Flawless | Flawless |
| Aging rear change rate of strength ? % | ±30 | -8.6 | 3.2 | 5.5 |
| Aging rear elongation change rate % | ±30 | ﹣22.7 | ﹣18.4 | ﹣9 |
Note 1: ozone ageing condition: ozone concn 270ppm, ozone ageing time 30h
Note 2: hot air aging condition: 135 ℃ of temperature, time 7 × 24h.
Claims (4)
1. a mine cable rubber conductor shielding material, is characterized in that: it makes the related raw material of effective constituent and counterweight ratio is:
100 parts of terpolymer EP rubbers;
70 ~ 90 parts of import graphitized carbon blacks;
2 ~ 5 parts of linking agents;
2 ~ 6 parts of additional crosslinkers;
10 ~ 40 parts, softening agent;
1 ~ 5 part, anti-aging agent;
1 ~ 5 part of flow dispersion auxiliary agent;
5 ~ 30 parts, oildag powder.
2. a kind of mine cable rubber conductor shielding material according to claim 1, is characterized in that: use peroxidation diisopropyl benzene as described linking agent.
3. a kind of mine cable rubber conductor shielding material according to claim 1, is characterized in that: use TAIC as described additional crosslinker.
4. a kind of mine cable rubber conductor shielding material according to claim 1, is characterized in that: use paraffin oil as described softening agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410045855.6A CN103819820A (en) | 2014-02-10 | 2014-02-10 | Mine cable rubber sheath conductor shielding material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410045855.6A CN103819820A (en) | 2014-02-10 | 2014-02-10 | Mine cable rubber sheath conductor shielding material |
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| Publication Number | Publication Date |
|---|---|
| CN103819820A true CN103819820A (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410045855.6A Pending CN103819820A (en) | 2014-02-10 | 2014-02-10 | Mine cable rubber sheath conductor shielding material |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104356519A (en) * | 2014-11-11 | 2015-02-18 | 无锡市明珠电缆有限公司 | Halogen-free low-smoke environment-friendly medium-pressure mining cable conductor shielding glue and preparation method thereof |
| CN105367918A (en) * | 2015-12-04 | 2016-03-02 | 四川明星电缆股份有限公司 | Halogen-free high-temperature-resistant conductor shield material and preparation method thereof |
| CN105462079A (en) * | 2015-12-01 | 2016-04-06 | 上海蓝昊电气江苏有限公司 | Semi-conductive material for saddle-shaped filling strip with high hardness and high temperature resistance and preparation method of semi-conductive material |
| CN105949630A (en) * | 2016-05-24 | 2016-09-21 | 航天科工武汉磁电有限责任公司 | Shielding material for vehicle-borne front radars and preparation method of shielding material |
| CN108359204A (en) * | 2018-01-26 | 2018-08-03 | 上海蓝昊电气有限公司 | Rubber cable peelable type insulation shielding material and its preparation process are pressed in one kind |
| CN109705478A (en) * | 2019-01-03 | 2019-05-03 | 宝胜科技创新股份有限公司 | Generation Ⅲ nuclear power station rubber cable semiconductive conductor shielding material |
| 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 (4)
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| CN1217353A (en) * | 1997-11-13 | 1999-05-26 | 中国石油化工总公司 | Resin composition for self-temp.-controlled heating cable |
| CN1218067A (en) * | 1997-11-13 | 1999-06-02 | 中国石油化工总公司 | Resin composition for self temperature controlling electric heating cables |
| CN1783359A (en) * | 2004-12-02 | 2006-06-07 | 上海电缆研究所 | Screening material for medium voltage rubber insulation cable |
| CN103524963A (en) * | 2013-10-24 | 2014-01-22 | 苏州市双鑫新材料科技有限公司 | Formula of semiconductive internal shielding material for scorch preventing cable |
-
2014
- 2014-02-10 CN CN201410045855.6A patent/CN103819820A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1217353A (en) * | 1997-11-13 | 1999-05-26 | 中国石油化工总公司 | Resin composition for self-temp.-controlled heating cable |
| CN1218067A (en) * | 1997-11-13 | 1999-06-02 | 中国石油化工总公司 | Resin composition for self temperature controlling electric heating cables |
| CN1783359A (en) * | 2004-12-02 | 2006-06-07 | 上海电缆研究所 | Screening material for medium voltage rubber insulation cable |
| CN103524963A (en) * | 2013-10-24 | 2014-01-22 | 苏州市双鑫新材料科技有限公司 | Formula of semiconductive internal shielding material for scorch preventing cable |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104356519A (en) * | 2014-11-11 | 2015-02-18 | 无锡市明珠电缆有限公司 | Halogen-free low-smoke environment-friendly medium-pressure mining cable conductor shielding glue and preparation method thereof |
| CN105462079A (en) * | 2015-12-01 | 2016-04-06 | 上海蓝昊电气江苏有限公司 | Semi-conductive material for saddle-shaped filling strip with high hardness and high temperature resistance and preparation method of semi-conductive material |
| CN105462079B (en) * | 2015-12-01 | 2018-01-12 | 上海蓝昊电气江苏有限公司 | High-hardness high temperature resistant shape of a saddle packing semiconductive material and preparation method thereof |
| CN105367918A (en) * | 2015-12-04 | 2016-03-02 | 四川明星电缆股份有限公司 | Halogen-free high-temperature-resistant conductor shield material and preparation method thereof |
| CN105949630A (en) * | 2016-05-24 | 2016-09-21 | 航天科工武汉磁电有限责任公司 | Shielding material for vehicle-borne front radars and preparation method of shielding material |
| CN108359204A (en) * | 2018-01-26 | 2018-08-03 | 上海蓝昊电气有限公司 | Rubber cable peelable type insulation shielding material and its preparation process are pressed in one kind |
| CN108359204B (en) * | 2018-01-26 | 2020-07-14 | 上海蓝昊电气有限公司 | Strippable insulation shielding material for medium-voltage rubber cable and preparation process thereof |
| CN109705478A (en) * | 2019-01-03 | 2019-05-03 | 宝胜科技创新股份有限公司 | Generation Ⅲ nuclear power station rubber cable semiconductive conductor shielding material |
| 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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Application publication date: 20140528 |