CN104086833A - Shielding material capable of being insulatedly peeled from ethylene-propylene-diene monomer for cable - Google Patents
Shielding material capable of being insulatedly peeled from ethylene-propylene-diene monomer for cable Download PDFInfo
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- CN104086833A CN104086833A CN201410329580.9A CN201410329580A CN104086833A CN 104086833 A CN104086833 A CN 104086833A CN 201410329580 A CN201410329580 A CN 201410329580A CN 104086833 A CN104086833 A CN 104086833A
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Abstract
The invention discloses a shielding material capable of being insulatedly peeled from ethylene-propylene-diene monomer for a cable. The effective components of the shielding material are prepared from the following raw materials in parts by weight: 60-80 parts of nitrile rubber, 20-40 parts of an ethylene-vinyl acetate copolymer, 1-3 parts of a crosslinking agent, 60-80 parts of conductive carbon black, 3-6 parts of microcrystalline wax, 2-4 parts of an anti-aging agent, 10-30 parts of a plasticizer and 5-15 parts of graphite powder. The shielding material capable of being insulatedly peeled from ethylene-propylene-diene monomer for the cable disclosed by the invention enhances the shielding effect of the cable in the usage period, improves the processing and mechanical properties of the cable and prolongs the service life of a product.
Description
Technical field
The invention belongs to CABLE MATERIALS technical field, be specifically related to a kind of high pressure particularly mine cable insulation screen cable with can with Ethylene Propylene Terpolymer insulating stripping from shielding material.
Background technology
In high-tension cable, insulation layer extrudes one deck semi-conductive layer outward and has outstanding meaning, it can uniform electric field, reduce the electric stress of insulation layer because existing impurity to produce, in split conductor cable, can guarantee the electric field non-interference between each cable core simultaneously, improve transmission efficiency, particularly, when having functional core to exist, insulation screen can guarantee validity and the verity of transmission signal.
Yet its bond properties of existing shielding material cannot be balanced with stripping performance, as Chinese patent CN 101585943A has introduced a kind of screen layer that ethene-vinyl acetate copolymer or Low Density Polyethylene be base-material of take, patent CN 102492199A has added modified rubber on ethene-vinyl acetate copolymer or low-density polyethylene plinth, object is to make screen layer and insulation layer have good rippability, but modified rubber consumption only accounts for 0% ~ 30%, therefore there is certain defect in its rippability, equally, in patent CN 103554802A, contriver provides the base-material mixing with Ethylene Propylene Terpolymer and vinyl-vinyl acetate copolymer to prepare strippable semi-conductive shielding layer, through overtesting, it has certain bond properties, but peel off rear to insulation have damage and have part semi-conductive layer residual.
Some technology that also have adopt paracril as shielding material completely, and it is poor with insulation layer adhesive capacity, be easy to separated bubbling and cause product rejection in company's sulphur process.
Therefore, develop a kind of and insulation displacement power between 4 ~ 45N, both can be peeled off in perfection, semiconductive material resistance below 3000 Ω, and in endless vulcanization process between insulation and semi-conductive layer not the semiconductive material of separated bubbling for high-tension cable, particularly mine cable industry is significant.
Summary of the invention
Object of the present invention is exactly to overcome some shortcomings that exist in above-mentioned background technology, provide a kind of cable with can with Ethylene Propylene Terpolymer insulating stripping from shielding material, promote cable insulation and screen layer stripping performance and also protect conductive layer, improve its processing and mechanical property.
For achieving the above object, disclosed a kind of cable with can with Ethylene Propylene Terpolymer insulating stripping from shielding material, it makes the related raw material of effective constituent and counterweight ratio is:
60 ~ 80 parts of paracrils;
20 ~ 40 parts of vinyl-vinyl acetate copolymers;
1 ~ 3 part of linking agent;
60 ~ 80 parts of graphitized carbon blacks;
3 ~ 6 parts of Microcrystalline Waxes;
2 ~ 4 parts, anti-aging agent;
10 ~ 30 parts, softening agent;
5 ~ 15 parts of Graphite Powder 99s.
In described paracril, acrylonitrile content is 35% ~ 42%.
In described vinyl-vinyl acetate copolymer, vinyl acetate content is 15% ~ 28%.
Described graphitized carbon black is import graphitized carbon black.
Described anti-aging agent is RD anti-aging agent or MB anti-aging agent.
Described softening agent is phthalic ester.
Compared with prior art, disclosed a kind of cable with can with Ethylene Propylene Terpolymer insulating stripping from shielding material, its mechanical property is better than Ethylene Propylene Terpolymer insulating material, can guarantee the shield effectiveness of cable in the usage period, simultaneously obtained at shielding material resistance between 100 ~ 1000 Ω, and the peeling force of insulating material is between 15 ~ 30N, after peeling off, both to not damage of insulation, semiconductive material can not remain in surface of insulating layer yet.
Specific embodiment
Below by specific embodiment, will technical scheme of the present invention be carried out to clear, complete description.
Embodiment 1
Disclosed a kind of cable with can with Ethylene Propylene Terpolymer insulating stripping from shielding material, select 80 parts of paracrils, 20 parts of vinyl-vinyl acetate copolymers, 1 part of linking agent, 60 parts of graphitized carbon blacks, 3 parts of Microcrystalline Waxes, 2 parts, anti-aging agent, 10 parts, softening agent, binder removal after batch mixing to 120 ℃ in 5 parts of input Banbury mixeies of Graphite Powder 99, dump temperature is lower than 90 ℃, connect in the stewing pipe process after sulphur finishes, control 10 kilograms of vapor pressures, stewing pipe time 8min, evacuation time is greater than 15min, makes the not separated bubbling of gained core insulation layer and semi-conductive layer.
Embodiment 2
Select 70 parts of paracrils, 30 parts of vinyl-vinyl acetate copolymers, 2 parts of linking agents, 70 parts of graphitized carbon blacks, 5 parts of Microcrystalline Waxes, 3 parts, anti-aging agent, 20 parts, softening agent, 10 parts of Graphite Powder 99s binder removal after batch mixing to 120 ℃ in Banbury mixer, dump temperature is lower than 90 ℃.Connect sulphur and finish in the stewing pipe process of rear key, 9 kilograms of vapor pressures, stewing pipe time 10min, evacuation time is greater than 18min, gained core insulation layer and the not separated bubbling of semi-conductive layer.
Embodiment 3
Select 60 parts of paracrils, 40 parts of vinyl-vinyl acetate copolymers, 3 parts of linking agents, 80 parts of graphitized carbon blacks, 6 parts of Microcrystalline Waxes, 4 parts, anti-aging agent, 30 parts, softening agent, 15 parts of Graphite Powder 99s binder removal after batch mixing to 120 ℃ in Banbury mixer, dump temperature is lower than 90 ℃.Connect sulphur and finish in the stewing pipe process of rear key, 8 kilograms of vapor pressures, stewing pipe time 14min, evacuation time is greater than 20min, gained core insulation layer and the not separated bubbling of semi-conductive layer.
The contrast of the finished product properties that in above-mentioned three embodiment, proportioning completes is as shown in table 1:
Table 1
| Test subject | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Peeling force N | 17.4 | 22.3 | 27.8 |
| Transition resistance Ω | 964 | 452 | 238 |
| Connect sulphur situation | Not separated bubbling | Not separated bubbling | Not separated bubbling |
Claims (6)
- Cable with can with Ethylene Propylene Terpolymer insulating stripping from a shielding material, it is characterized in that: it makes the related raw material of effective constituent and counterweight ratio is:60 ~ 80 parts of paracrils;20 ~ 40 parts of vinyl-vinyl acetate copolymers;1 ~ 3 part of linking agent;60 ~ 80 parts of graphitized carbon blacks;3 ~ 6 parts of Microcrystalline Waxes;2 ~ 4 parts, anti-aging agent;10 ~ 30 parts, softening agent;5 ~ 15 parts of Graphite Powder 99s.
- A kind of cable according to claim 1 with can with Ethylene Propylene Terpolymer insulating stripping from shielding material, it is characterized in that: in described paracril, acrylonitrile content is 35% ~ 42%.
- A kind of cable according to claim 1 with can with Ethylene Propylene Terpolymer insulating stripping from shielding material, it is characterized in that: in described vinyl-vinyl acetate copolymer, vinyl acetate content is 15% ~ 28%.
- A kind of cable according to claim 1 with can with Ethylene Propylene Terpolymer insulating stripping from shielding material, it is characterized in that: described graphitized carbon black is import graphitized carbon black.
- A kind of cable according to claim 1 with can with Ethylene Propylene Terpolymer insulating stripping from shielding material, it is characterized in that: described anti-aging agent is RD anti-aging agent or MB anti-aging agent.
- A kind of cable according to claim 1 with can with Ethylene Propylene Terpolymer insulating stripping from shielding material, it is characterized in that: described softening agent is phthalic ester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410329580.9A CN104086833A (en) | 2014-07-11 | 2014-07-11 | Shielding material capable of being insulatedly peeled from ethylene-propylene-diene monomer for cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410329580.9A CN104086833A (en) | 2014-07-11 | 2014-07-11 | Shielding material capable of being insulatedly peeled from ethylene-propylene-diene monomer for cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104086833A true CN104086833A (en) | 2014-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410329580.9A Pending CN104086833A (en) | 2014-07-11 | 2014-07-11 | Shielding material capable of being insulatedly peeled from ethylene-propylene-diene monomer for cable |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104361945A (en) * | 2014-11-13 | 2015-02-18 | 无锡市明珠电缆有限公司 | Halogen-free flame-retardant low-temperature-resisting medium-voltage wind energy cable and manufacturing method thereof |
| CN105218894A (en) * | 2015-10-21 | 2016-01-06 | 山东太平洋橡缆股份有限公司 | A kind of ethylene-propylene rubber(EPR) cable insulation layer semi-conductive shielding material |
| CN105949591A (en) * | 2016-05-18 | 2016-09-21 | 张翔 | Formula and preparation method of flame-retardant anticorrosive cable sheath |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4286023A (en) * | 1976-10-04 | 1981-08-25 | Union Carbide Corporation | Article of manufacture, the cross-linked product of a semi-conductive composition bonded to a crosslinked polyolefin substrate |
| CN101348588A (en) * | 2007-07-19 | 2009-01-21 | 徐凤祥 | Special material for semiconductor strippable shielded cable and manufacturing method thereof |
-
2014
- 2014-07-11 CN CN201410329580.9A patent/CN104086833A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4286023A (en) * | 1976-10-04 | 1981-08-25 | Union Carbide Corporation | Article of manufacture, the cross-linked product of a semi-conductive composition bonded to a crosslinked polyolefin substrate |
| CN101348588A (en) * | 2007-07-19 | 2009-01-21 | 徐凤祥 | Special material for semiconductor strippable shielded cable and manufacturing method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104361945A (en) * | 2014-11-13 | 2015-02-18 | 无锡市明珠电缆有限公司 | Halogen-free flame-retardant low-temperature-resisting medium-voltage wind energy cable and manufacturing method thereof |
| CN105218894A (en) * | 2015-10-21 | 2016-01-06 | 山东太平洋橡缆股份有限公司 | A kind of ethylene-propylene rubber(EPR) cable insulation layer semi-conductive shielding material |
| CN105949591A (en) * | 2016-05-18 | 2016-09-21 | 张翔 | Formula and preparation method of flame-retardant anticorrosive cable sheath |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141008 |