CN102682870A - Ethylene-propylene rubber insulating mouse-proof insect-proof low-smoke halogen-free flame-retardant direct-current high-voltage cable insulating material used for rail traffic - Google Patents
Ethylene-propylene rubber insulating mouse-proof insect-proof low-smoke halogen-free flame-retardant direct-current high-voltage cable insulating material used for rail traffic Download PDFInfo
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- CN102682870A CN102682870A CN2012100560150A CN201210056015A CN102682870A CN 102682870 A CN102682870 A CN 102682870A CN 2012100560150 A CN2012100560150 A CN 2012100560150A CN 201210056015 A CN201210056015 A CN 201210056015A CN 102682870 A CN102682870 A CN 102682870A
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Abstract
The invention discloses an ethylene-propylene rubber insulating mouse-proof insect-proof low-smoke halogen-free flame-retardant direct-current high-voltage cable insulating material used for rail traffics. The insulating material is formed by the following raw materials by weight: 100 parts of ethylene-propylene rubber, 2.3-3.2 parts of vulcanizing agent, 0.3-1.2 parts of co-vulcanizing agent, 50-67 parts of reinforcing agent, 5-7 parts of microcrystalline wax, 5-7 parts of epoxy soybean oil; 0.8-1.2 parts of coupling agent, 8-10 parts of low-density polyethylene, 5-8 parts of zinc oxide nano-powder, 1.2-1.6 parts of anti-aging agent, 5-7 parts of red lead, 1.0-5 parts of magnesium oxide nano-powder, and 15-25 parts of white carbon black. The ethylene-propylene rubber insulating mouse-proof insect-proof low-smoke halogen-free flame-retardant direct-current high-voltage cable insulating material used for rail traffics has the advantages that the mechanical property and electric property of the direct-current high-voltage cable are enhanced effectively and the weather resistance is excellent.
Description
Technical field
The present invention relates to the high molecular technical field of cable material, specifically is that a kind of track traffic is with second third glue insulation termite-resistant rodent-resistant low-smoke non-halogen flame-retardant direct current high voltage cable Insulation Material.
Background technology
Along with the high speed development of urban rail transit in China cause, track traffic also constantly increases with the demand of cable.There are Beijing, Tianjin, Guangzhou, Shanghai, Changchun, Dalian, Chongqing, Wuhan, Shenzhen, Nanjing etc. in the city that track traffic has been opened in the whole nation.Three indexs according to the urban rail transit construction of State Council approved are weighed; At present the whole nation 50 cities has all possessed the demand and the condition of urban track traffic nearly; Track traffic provides a lot of convenience for everybody live and work; Also improve efficient, satisfied the needs of the efficient fast work rhythm of life of people.The tool data shows that in the coming years, China will have more than 20 city plan to build subway and light rail, and total kilometrage reaches 850km, 200,000,000,000 yuan of gross investments; To the year two thousand twenty, China's rail line length overall will reach about 2200km, 5,000 hundred million yuan of gross investments.This is an opportunity to wires and cables industry, is again challenge.
With respect to ac transmission technology, direct current transportation is because to have the circuit cost low, and line loss is little, does not have the system stability problem, can limiting short-circuit current, regulate fast, characteristics such as reliable, in power transmission and distribution gradually by increasing employing.At present in China's urban rail transit construction used DC traction electric power transfer with the direct current cables major part from external introduction or take the ac cable replacement; Too high from external import cost; Adopt the insulating Design of ac cable; Its operating characteristic, the adaptive capacity of environment is not suitable for the requirement of modern railway transportation dc traction system, transmission stability can be descended.
The direct current power cable that China's track traffic is used for transmission and transport vehicle is confined to below the 3kV at present, and its structure has many deficiencies; The conventional dc cable is that employing is crosslinked polyetylene insulated; Crosslinked polyethylene in use is easy to produce space charge to be caused puncturing; Sheath adopts the flame-proof PVC material; The flame-proof PVC oversheath returns when burning and discharges a large amount of halogen acid gas, and instrument and meter and equipment around the heavy corrosion also have very big harm to health of human body simultaneously.In addition, cable is if be laid in termite or the rampant place of mouse, and usually oversheath can be gnawed through by erosion of termite moth or mouse, and severe patient also can cause cable breakdown.The power cable that the present invention designed can reach 10kV and fill up this technological vacancy of termite-resistant rodent-resistant low-smoke non-halogen flame-retardant direct current high voltage cable.
Summary of the invention
Main purpose of the present invention provides a kind of track traffic and uses the high-voltage DC cable insulating material; The insulating barrier of the cable that this CABLE MATERIALS of usefulness is processed into; The gained cable has protection against rodents, anti-ant, low-smoke non-halogen flame-retardant, high pressure resistant, high strength, fire resistance characteristic, can under adverse circumstances, use for a long time.
For realizing that above-mentioned purpose technical solution problem of the present invention adopts following technical scheme:
A kind of track traffic is with ethylene propylene rubber insulated termite-resistant rodent-resistant low-smoke non-halogen flame-retardant direct current high voltage cable Insulation Material, and it is characterized in that: the weight proportion of its material component is: 100 parts in ethylene-propylene rubber, 2.3～3.2 parts of vulcanizing agents, 0.3～1.2 part of co-vulcanization agent, 50～67 parts of reinforcing agents, 5～7 parts of microcrystalline waxes, 5～7 parts of epoxidized soybean oils, 0.8～1.2 part of coupling agent, 8～10 parts of low density polyethylene (LDPE)s, 5～8 parts of zinc oxide nanos, 1.2～1.6 parts in age resistor, 5～7 parts of red lead, 1.0～5 parts in bitter earth nano powder, 15～25 parts of white carbon blacks.
Described track traffic is with second third glue insulation termite-resistant rodent-resistant low-smoke non-halogen flame-retardant direct current high voltage cable Insulation Material, and the described ethylene-propylene rubber trade mark is Nordel 2722 E, and U.S. Du Pont company produces; Described vulcanizing agent is that described vulcanizing agent is 2,5-dimethyl-2, and 5-di-t-butyl peroxy-3-hexin or 2,5-dimethyl-2, two (tert-butyl peroxide) hexanes of 5-, described co-vulcanization agent is co-vulcanization agent TMPT, described reinforcing agent is a potter's clay; The melt index of described low density polyethylene (LDPE) is about 2.0, and described age resistor is an antioxidant 264; Described coupling agent is vinyl-three (2-methoxy ethoxy) silane.
Described track traffic is with the preparation method of second third glue insulation termite-resistant rodent-resistant low-smoke non-halogen flame-retardant direct current high voltage cable Insulation Material: it is characterized in that may further comprise the steps:
(1) earlier ethylene-propylene rubber being dropped into banbury plasticated 1-2 minute under temperature 90-100 ℃;
(2) microcrystalline wax, zinc oxide nano, age resistor, red lead, low density polyethylene (LDPE), epoxidized soybean oil, the bitter earth nano powder with formula rate joins in the broken-down rubber mixing; After mixing 2-3 minute; Add reinforcing agent again and continued mixing 2.5-3.5 minute, banburying chamber's temperature is controlled at 120-135 ℃;
(3) add vulcanizing agent, co-vulcanization agent, coupling agent etc. at last and process the rubber sheet that thickness is 1-2mm after mixing again 1 minute.
Described track traffic is with the preparation method of second third glue insulation termite-resistant rodent-resistant low-smoke non-halogen flame-retardant direct current high voltage cable Insulation Material; It is characterized in that: when the described ethylene-propylene rubber of step (1) is plasticated; Requirement, the plasiticity index of broken-down rubber reaches 0.4-0.45, and moulding experienced temperature is 95 ℃.
Beneficial effect of the present invention:
1, adopts low mooney viscosity, the ethylene contents low-molecular-weight between 65%～75%, the material of main part that semi-crystalline polymer Nordel2722 makes high voltage direct current cable in this CABLE MATERIALS of sizing material good heat resistance prescription; Be added with 2; 5-dimethyl-2,5-two (t-butylperoxy) hexane or 2,5-dimethyl-2; Two (the tert-butyl peroxide)-3-hexin organic peroxide sulfuration agent of 5-make the vulcanization characteristics of sizing material and the good heat resistance of rubber;
2, electrical insulation capability improves the calcinated argil that adds in the prescription through the silane coupler activation processing as packing strengthening agent, makes further the raising of electrical insulation capability of rubber and stable, guarantees the processing characteristics and the mechanical performance of rubber;
3, adding microcrystalline wax, red lead, vinyl-three (2-methoxy ethoxy) silane and a certain amount of melt index in the prescription is about 2.0 low density polyethylene (LDPE); Improve the processing characteristics of rubber; Improve corona resistance, the heat-resisting and ozone resistance of rubber, improve and add material in the wettability of rubber, the electricapparatus performance of rubber and the stability of immersion back electric property;
4, add magnesia inorganic nano powder, reach the inner space electric charge that suppresses to insulate and gather, improve the purpose of its internal electric field.
In a word,, confirm description of materials and proportioning, develop anti-direct current high voltage cable insulation prescription through the orthogonal optimization design.Prepare burden by prescription requirements, adding is carried out in the banbury mixing, produces the direct current high voltage cable Insulation Material.The average thickness of insulation is not less than the nominal value 4.5mm of regulation, and the thinnest dot thickness of insulation is not less than nominal value 90%.The insulating barrier of the cable that is processed into this CABLE MATERIALS, gained cable have protection against rodents, anti-ant, low-smoke non-halogen flame-retardant, high pressure resistant, high strength, fire resistance characteristic, can under adverse circumstances, use for a long time.
CABLE MATERIALS of the present invention and existing CABLE MATERIALS general performance are relatively seen table 1
Table 1
Description of drawings
Fig. 1 is a manufacturing process flow diagram of the present invention.
Embodiment
Preparation requires: because Insulation Material of the present invention is applied as the master with track traffic with second third glue insulation termite-resistant rodent-resistant low-smoke non-halogen flame-retardant direct current high voltage cable, so the clean production environment of corresponding product needed could guarantee the electrical property of product fine.Preferably adopt ventilation equipment to send into cleaned air passes, keep the malleation of workshop.
Concrete operations are seen as follows: 1. earlier with the ethylene-propylene rubber reduction viscosity of plasticating.2. the banburying process for dispersing mixes as long as can guarantee each component.3 roll over page or leaf becomes film; Can adopt page machine of rolling over or miscellaneous equipment calendering to cut into the suitable adhesive tape of size.
Material prescription:
A kind of track traffic is with ethylene propylene rubber insulated termite-resistant rodent-resistant low-smoke non-halogen flame-retardant direct current high voltage cable Insulation Material, and the weight proportion of its material component is: 100 parts in ethylene-propylene rubber, 2.3～3.2 parts of vulcanizing agents, 0.3～1.2 part of co-vulcanization agent, 50～67 parts of reinforcing agents, 5～7 parts of microcrystalline waxes, 5～7 parts of epoxidized soybean oils, 0.8～1.2 part of coupling agent, 8～10 parts of low density polyethylene (LDPE)s, 5～8 parts of zinc oxide nanos, 1.2～1.6 parts in age resistor, 5～7 parts of red lead, 1.0～5 parts in bitter earth nano powder, 15～25 parts of white carbon blacks.
The ethylene-propylene rubber trade mark is Nordel 2722 E, and U.S. Du Pont company produces; Described vulcanizing agent is 2,5-dimethyl-2, and 5-di-t-butyl peroxy-3-hexin or 2,5-dimethyl-2, two (tert-butyl peroxide) hexanes of 5-, described co-vulcanization agent is co-vulcanization agent TMPT, described reinforcing agent is a potter's clay; The melt index of described low density polyethylene (LDPE) is about 2.0, and described age resistor is an antioxidant 264; Described coupling agent is vinyl-three (2-methoxy ethoxy) silane.
Embodiment
The embodiment proportioning is seen table 2.The various materials of table 2 proportioning weighing are pressed in preparation; Earlier ethylene-propylene rubber is dropped into banbury after 30 seconds to 1 minute; Material, bitter earth nano powder, epoxidized soybean oils such as the microcrystalline wax of adding formula rate, zinc oxide nano, antioxidant 264, red lead, low density polyethylene (LDPE); After mixing about 2 minutes; Added reinforcing agent potter's clay mixing about 3 minutes, banburying chamber's temperature is controlled at 120-135 ℃, and adding vulcanizing agent, co-vulcanization agent, coupling agent at last, to process thickness after mixing 1 minute be that the rubber sheet of 1-2mm is subsequent use.
Example formulations table 2
| Raw material | Instance 1 | Instance 2 | Instance 3 |
| Ethylene-propylene rubber | 100 | 100 | 100 |
| Vulcanizing agent | 2.3 | 2.8 | 3.2 |
| The co-vulcanization agent | 1.2 | 0.7 | 0.3 |
| Reinforcing agent | 65 | 58 | 50 |
| Microcrystalline wax | 7 | 6 | 5 |
| Coupling agent | 0.8 | 1 | 1.2 |
| Low density polyethylene (LDPE) | 10 | 9 | 8 |
| Zinc oxide nano | 5 | 6 | 8 |
| Age resistor | 1.2 | 1.4 | 1.6 |
| Epoxidized soybean oil | 5 | 6 | 7 |
| Red lead | 5 | 6 | 7 |
| The bitter earth nano powder | 1.0 | 3 | 5 |
| White carbon black | 15 | 20 | 25 |
Get a certain amount of rubber mass, through 160*30 minute, after the pressure 15MPa sulfuration, the test piece of processing 2mm was carried out mechanical and physical performance and electric performance test, performance such as table 3 on vulcanizing press.
Table 3
Claims (4)
1. a track traffic is with ethylene propylene rubber insulated termite-resistant rodent-resistant low-smoke non-halogen flame-retardant direct current high voltage cable Insulation Material, and it is characterized in that: the weight proportion of its material component is: 100 parts in ethylene-propylene rubber, 2.3～3.2 parts of vulcanizing agents, 0.3～1.2 part of co-vulcanization agent, 50～67 parts of reinforcing agents, 5～7 parts of microcrystalline waxes, 5～7 parts of epoxidized soybean oils, 0.8～1.2 part of coupling agent, 8～10 parts of low density polyethylene (LDPE)s, 5～8 parts of zinc oxide nanos, 1.2～1.6 parts in age resistor, 5～7 parts of red lead, 1.0～5 parts in bitter earth nano powder, 15～25 parts of white carbon blacks.
According to the described track traffic of claim 1 with second third glue insulation termite-resistant rodent-resistant low-smoke non-halogen flame-retardant direct current high voltage cable Insulation Material, it is characterized in that the described ethylene-propylene rubber trade mark is Nordel 2722 E, U.S. Du Pont company produces; Described vulcanizing agent is 2,5-dimethyl-2, and 5-di-t-butyl peroxy-3-hexin or 2,5-dimethyl-2, two (tert-butyl peroxide) hexanes of 5-, described co-vulcanization agent is co-vulcanization agent TMPT, described reinforcing agent is a potter's clay; The melt index of described low density polyethylene (LDPE) is about 2.0, and described age resistor is an antioxidant 264; Described coupling agent is vinyl-three (2-methoxy ethoxy) silane.
3. one kind like claim 1 or the 2 described track traffics preparation method with second third glue insulation termite-resistant rodent-resistant low-smoke non-halogen flame-retardant direct current high voltage cable Insulation Material: it is characterized in that may further comprise the steps:
(1) earlier ethylene-propylene rubber being dropped into banbury plasticated 1-2 minute under temperature 90-100 ℃;
(2) microcrystalline wax, zinc oxide nano, age resistor, red lead, low density polyethylene (LDPE), epoxidized soybean oil, the bitter earth nano powder with formula rate joins in the broken-down rubber mixing; After mixing 2-3 minute; Add reinforcing agent again and continued mixing 2.5-3.5 minute, banburying chamber's temperature is controlled at 120-135 ℃;
(3) add vulcanizing agent, co-vulcanization agent, coupling agent etc. at last and process the rubber sheet that thickness is 1-2mm after mixing again 1 minute.
4. track traffic according to claim 3 is with the preparation method of second third glue insulation termite-resistant rodent-resistant low-smoke non-halogen flame-retardant direct current high voltage cable Insulation Material; It is characterized in that: when the described ethylene-propylene rubber of step (1) is plasticated; Requirement; The plasiticity index of broken-down rubber reaches 0.4-0.45, and moulding experienced temperature is 95 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100560150A CN102682870A (en) | 2012-03-05 | 2012-03-05 | Ethylene-propylene rubber insulating mouse-proof insect-proof low-smoke halogen-free flame-retardant direct-current high-voltage cable insulating material used for rail traffic |
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| CN2012100560150A CN102682870A (en) | 2012-03-05 | 2012-03-05 | Ethylene-propylene rubber insulating mouse-proof insect-proof low-smoke halogen-free flame-retardant direct-current high-voltage cable insulating material used for rail traffic |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103724762A (en) * | 2013-12-10 | 2014-04-16 | 芜湖佳诚电子科技有限公司 | Insulation material for urban rail-used cable and preparation method thereof |
| CN107103954A (en) * | 2017-05-03 | 2017-08-29 | 安徽凌宇电缆科技有限公司 | A kind of harbour mobile flexible cable that blocks water that resists cold |
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| WO2010024602A2 (en) * | 2008-08-27 | 2010-03-04 | Ls Cable Ltd. | Polypropylene-based flame-resistant resin composition for cable insulation material with superior mechanical properties |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103724762A (en) * | 2013-12-10 | 2014-04-16 | 芜湖佳诚电子科技有限公司 | Insulation material for urban rail-used cable and preparation method thereof |
| CN107103954A (en) * | 2017-05-03 | 2017-08-29 | 安徽凌宇电缆科技有限公司 | A kind of harbour mobile flexible cable that blocks water that resists cold |
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Application publication date: 20120919 |
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