CN103772777B - A kind of city rail cable sheath material - Google Patents
A kind of city rail cable sheath material Download PDFInfo
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- CN103772777B CN103772777B CN201410023119.0A CN201410023119A CN103772777B CN 103772777 B CN103772777 B CN 103772777B CN 201410023119 A CN201410023119 A CN 201410023119A CN 103772777 B CN103772777 B CN 103772777B
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Abstract
The invention discloses a kind of city rail cable sheath material, its raw material comprises major ingredient and auxiliary material, major ingredient comprises 20-25 part W type chloroprene rubber and 13-17 part chlorinated polybutadiene by weight, auxiliary material comprises 1-1.5 part magnesium oxide by weight, 1-1.5 part zinc oxide, 0.5-0.9 part aluminium hydroxide, 0.2-0.4 part stearic acid, 0.5-1 part altax, 0.6-0.8 part accelerant N A-22, 0.1 ~ 0.3 part of curing methyl thiuram, 1.0 ~ 1.3 parts of softening agent sulfuric acid three are oxidized four lead, 0.45 ~ 0.6 part of dioctyl phthalate (DOP), 1.2 ~ 1.4 parts of microcrystalline waxes, 0.9 ~ 1.2 part of ODA, 0.1 ~ 0.15 part of N, 4-aminodiphenylamine, 0.2 ~ 0.4 part of anti-aging agent 445, 5 ~ 8 parts of strengthening agent carbon black N660, 4.5 ~ 6 parts of strengthening agent semi-reinforcing hydrocarbon blacks, 3-4 part precipitated silica, 8 ~ 10 parts of calcinated argils, 3 ~ 4 parts of calcium carbonate, 0.7-1.4 part sulphur.
Description
Technical field
The present invention relates to cable sheath material technical field, particularly relate to a kind of city rail cable sheath material.
Background technology
Along with the development of domestic economy and the acceleration of Urbanization Construction, urban track traffic is as solution Urban Traffic a kind of basic public facility easily, because it is quick, safety, comfortable, feature that is convenient and energy-conserving and environment-protective obtains Large scale construction in many cities, city rail cable is widely applied thereupon, wherein obviously increase with the usage quantity of flame resistant cable, in some important departments and public arena, after presence of fire, packaging circuit normally can run for some time and be very helpful to rescue work, and loss of life and personal injury and property damage can be reduced to a great extent, the outermost layer of city rail cable is sheath, it is generally rubber or rubber synthesis cover, sheath effect is that insulation and protection cable preserve from, the quality of its fire performance safe operation could have vital effect to city rail cable, though developed multiple flame resistant cable sheath material at present, but still can not meet demand, how to prepare a kind of heat-resisting, excellent fire retarding performance, burning environmental pollution is little, physical mechanical can be excellent, duration of service, the city rail cable sheath material of length became the current technical issues that need to address.
Summary of the invention
The present invention proposes a kind of city rail cable sheath material, described city rail cable sheath material physical and mechanical properties be good, heat-resisting, excellent fire retarding performance, burn to the less pollution of environment, work-ing life is longer.
A kind of city rail cable sheath material that the present invention proposes, its raw material comprises major ingredient and auxiliary material, wherein major ingredient comprises 20-25 part W type chloroprene rubber and 13-17 part chlorinated polybutadiene by weight, wherein auxiliary material comprises 1-1.5 part magnesium oxide by weight, 1-1.5 part zinc oxide, 0.5-0.9 part aluminium hydroxide, 0.2-0.4 part stearic acid, 0.5-1 part altax, 0.6-0.8 part accelerant N A-22, 0.1 ~ 0.3 part of curing methyl thiuram, 1.0 ~ 1.3 parts of softening agent sulfuric acid three are oxidized four lead, 0.45 ~ 0.6 part of dioctyl phthalate (DOP), 1.2 ~ 1.4 parts of microcrystalline waxes, 0.9 ~ 1.2 part of ODA, 0.1 ~ 0.15 part of N, 4-aminodiphenylamine, 0.2 ~ 0.4 part of anti-aging agent 445, 5 ~ 8 parts of strengthening agent carbon black N660, 4.5 ~ 6 parts of strengthening agent semi-reinforcing hydrocarbon blacks, 3-4 part precipitated silica, 8 ~ 10 parts of calcinated argils, 3 ~ 4 parts of calcium carbonate, 0.7-1.4 part sulphur.
Preferably, the weight part of W type chloroprene rubber is 23-25 part, and the weight part of chlorinated polybutadiene is 14-15 part.
Preferably, the weight ratio of W type chloroprene rubber and chlorinated polybutadiene is 12:7.
Preferably, magnesium oxide: zinc oxide: the weight ratio of aluminium hydroxide is (2-3): 3:1.
Preferably, described auxiliary material comprises by weight: 1-1.5 part magnesium oxide, 1.5 parts of zinc oxide, 0.5 part of aluminium hydroxide, 0.2-0.4 part stearic acid, 0.6-0.8 part altax, 0.7-0.75 part accelerant N A-22, 0.1 ~ 0.3 part of curing methyl thiuram, 1.1-1.2 part softening agent sulfuric acid three is oxidized four lead, 0.5-0.55 part dioctyl phthalate (DOP), 1.3-1.4 part microcrystalline wax, 1.1-1.2 part ODA, 1.11-1.13 part N, 4-aminodiphenylamine, 0.2-0.3 part anti-aging agent 445, 6-7 part strengthening agent carbon black N660, 5-5.5 part strengthening agent semi-reinforcing hydrocarbon black, 3.2-3.5 part precipitated silica, 9-10 part calcinated argil, 3.2-3.5 part calcium carbonate, 0.9-1.2 part sulphur.
In the present invention, use W type chloroprene rubber and chlorinated polybutadiene as base material, and conservative control promoting agent zinc oxide, promoting agent magnesium oxide and the proportioning of magnesium hydroxide in this cable sheath, significantly can reduce the burst size of hydrogenchloride during neoprene latex burning, and there is good fire retardant smoke effect, add altax, accelerant N A-22 and curing methyl thiuram share and conservative control content can extend time of scorch and play the effect preventing incipient scorch, heat-resisting effect is good, and significantly improve the plasticity-of neoprene latex, accelerant N A-22 is mixed with W type chloroprene rubber, good stress at definite elongation and higher hardness, and set resistant is little, heat aging performance is good, NA-22 and DM uses with, prevent incipient scorch Be very effective, in this kind of cable sheath, add stearic acid make activator, then component disperses is even, cable sheath surface flatness is excellent, microcrystalline wax is as tenderizer, significantly can increase the processing characteristics of sizing material, make sizing material not easily roll banding and incipient scorch, due to the easy thermooxidizing of neoprene latex, introduce anti-aging agent 445, ODA, N, 4-aminodiphenylamine and dioctyl phthalate (DOP) can obtain desirable anti-aging effect, four lead are oxidized with the use of sulfuric acid three, anti-aging excellent effect, weighting agent precipitated silica, calcinated argil and calcium carbonate can increase rubber volume, reduce costs, improve and mediate performance, and reduce molding shrinkage.
Embodiment
Embodiment 1
A kind of city rail cable sheath material, its raw material comprises major ingredient and auxiliary material;
Wherein major ingredient comprises 20 parts of W type chloroprene rubbers and 16 parts of chlorinated polybutadiene by weight;
Wherein auxiliary material comprises 1.5 parts of magnesium oxide by weight, 1.1 parts of zinc oxide, 0.8 part of aluminium hydroxide, 0.2 part of stearic acid, 0.5 part of altax, 0.7 part of accelerant N A-22, 0.2 part of curing methyl thiuram, 1.03 parts of softening agent sulfuric acid three are oxidized four lead, 0.58 part of dioctyl phthalate (DOP), 1.3 parts of microcrystalline waxes, 1.1 parts of ODAs, 0.12 part of N, 4-aminodiphenylamine, 0.3 part of anti-aging agent 445, 7 parts of strengthening agent carbon black N660, 4.6 parts of strengthening agent semi-reinforcing hydrocarbon blacks, 4 parts of precipitated silicas, 9 parts of calcinated argils, 3.2 parts of calcium carbonate, 1.2 parts of sulphur.
Embodiment 2
A kind of city rail cable sheath material, its raw material comprises major ingredient and auxiliary material;
Wherein major ingredient comprises 25 parts of W type chloroprene rubbers and 14 parts of chlorinated polybutadiene by weight;
Wherein auxiliary material comprises 1.4 parts of magnesium oxide by weight, 1.3 parts of zinc oxide, 0.6 part of aluminium hydroxide, 0.2 part of stearic acid, 0.9 part of altax, 0.7 part of accelerant N A-22, 0.25 part of curing methyl thiuram, 1.25 parts of softening agent sulfuric acid three are oxidized four lead, 0.55 part of dioctyl phthalate (DOP), 1.3 parts of microcrystalline waxes, 1.1 parts of ODAs, 0.13 part of N, 4-aminodiphenylamine, 0.37 part of anti-aging agent 445, 7.5 parts of strengthening agent carbon black N660, 5.8 parts of strengthening agent semi-reinforcing hydrocarbon blacks, 3.4 parts of precipitated silicas, 8.7 parts of calcinated argils, 3.5 parts of calcium carbonate, 1.35 part sulphur.
Embodiment 3
A kind of city rail cable sheath material, its raw material comprises major ingredient and auxiliary material;
Wherein major ingredient comprises 24 parts of W type chloroprene rubbers and 16 parts of chlorinated polybutadiene by weight;
Wherein auxiliary material comprises 1.45 parts of magnesium oxide by weight, 1.3 parts of zinc oxide, 0.8 part of aluminium hydroxide, 0.33 part of stearic acid, 0.24 part of altax, 0.7 part of accelerant N A-22, 0.28 part of curing methyl thiuram, 1.05 parts of softening agent sulfuric acid three are oxidized four lead, 0.58 part of dioctyl phthalate (DOP), 1.33 part microcrystalline wax, 1.05 part ODA, 0.2 part of N, 4-aminodiphenylamine, 0.36 part of anti-aging agent 445, 6.7 parts of strengthening agent carbon black N660, 5.7 parts of strengthening agent semi-reinforcing hydrocarbon blacks, 3.3 parts of precipitated silicas, 9.5 parts of calcinated argils, 3.6 parts of calcium carbonate, 1.3 parts of sulphur.
Embodiment 4
A kind of city rail cable sheath material, its raw material comprises major ingredient and auxiliary material;
Wherein major ingredient comprises 24 parts of W type chloroprene rubbers and 15 parts of chlorinated polybutadiene by weight;
Wherein auxiliary material comprises 1.3 parts of magnesium oxide by weight, 1.5 parts of zinc oxide, 0.5 part of aluminium hydroxide, 0.27 part of stearic acid, 0.7 part of altax, 0.72 part of accelerant N A-22, 0.15 part of curing methyl thiuram, 1.15 parts of softening agent sulfuric acid three are oxidized four lead, 0.53 part of dioctyl phthalate (DOP), 1.34 part microcrystalline wax, 1.14 part ODA, 1.12 part N, 4-aminodiphenylamine, 0.25 part of anti-aging agent 445, 6.4 parts of strengthening agent carbon black N660, 5.3 parts of strengthening agent semi-reinforcing hydrocarbon blacks, 3.4 parts of precipitated silicas, 10 parts of calcinated argils, 3.4 parts of calcium carbonate, 1.1 parts of sulphur.
The rail cable sheath material of city described in above-described embodiment 1-4 comprises the steps:
S1, take W type chloroprene rubber and chlorinated polybutadiene and insert in mill evenly mixing by weight, melting temperature is 48-52 DEG C;
S2, add magnesium oxide successively by weight, zinc oxide, aluminium hydroxide, stearic acid, altax, accelerant N A-22, curing methyl thiuram, softening agent sulfuric acid three is oxidized four lead, dioctyl phthalate (DOP), microcrystalline wax, ODA, N, 4-aminodiphenylamine, anti-aging agent 445, strengthening agent carbon black N660, strengthening agent semi-reinforcing hydrocarbon black, precipitated silica, calcinated argil, calcium carbonate, sulphur are evenly mixing;
Bottom sheet after S3, sizing material bag roller;
S4, the material prepared by S3 are placed in sulfuration on vulcanizing press and obtain city rail cable sheath material, and wherein curing temperature is 143-148 DEG C, and curing time is 6-8min.
Carry out performance test to above-mentioned city rail cable sheath material below, test result is as follows:
1, aging front sheath physical and mechanical properties test result:
| Test event | Standard-required | Test result |
| Tensile strength, MPa | ≥10.0 | 13.8 |
| Elongation at break, % | ≥300 | 805 |
2, heat ageing test, test temperature is 75 DEG C, and heat-up time is 240h, and test result is as follows:
| Test event | Standard-required | Test result |
| Variation in tensile strength, % | ≥-15 | -7.3 |
| Elongation at break, % | ≥250 | 760 |
| Extension at break velocity of variation, % | ≥-25 | -5.6 |
3, hot elongation test result, Heating temperature is 200 DEG C, and pressure is 20N/cm2, and test result is as follows:
| Test event | Standard-required | Test result |
| Elongation under load, % | ≤175 | 28 |
| Tension set after cooling, % | ≤25 | 15 |
4, dip test result, temperature during dipping is 100 DEG C, and dipping time is 24h, and test result is as follows:
| Test event | Standard-required | Test result |
| Variation in tensile strength, % | ≤±40 | -20.6 |
| Extension at break velocity of variation, % | ≤±40 | -9.6 |
5, flame retardant properties test result is as follows:
| Test event | Standard-required | Test result |
| Smoke density, % | ≤300 | 180 |
| Oxygen index, % | ≥35 | 40.4 |
| Hydrogen halide burst size, mg/g | ≤90 | 25 |
| Poison exponent | ≤5 | 4.44 |
Above-mentioned city rail cable sheath material, use W type chloroprene rubber and chlorinated polybutadiene as base material, and conservative control promoting agent zinc oxide, promoting agent magnesium oxide and the proportioning of magnesium hydroxide in this cable sheath, significantly can reduce the burst size of hydrogenchloride during neoprene latex burning, and there is good fire retardant smoke effect, add altax, accelerant N A-22 and curing methyl thiuram share and conservative control content can extend time of scorch and play the effect preventing incipient scorch, heat-resisting effect is good, and significantly improve the plasticity-of neoprene latex, accelerant N A-22 is mixed with W type chloroprene rubber, good stress at definite elongation and higher hardness, and set resistant is little, heat aging performance is good, NA-22 and DM uses with, prevent incipient scorch Be very effective, in this kind of cable sheath, add stearic acid make activator, then component disperses is even, cable sheath surface flatness is excellent, microcrystalline wax is as tenderizer, significantly can increase the processing characteristics of sizing material, make sizing material not easily roll banding and incipient scorch, due to the easy thermooxidizing of neoprene latex, introduce anti-aging agent 445, ODA, N, 4-aminodiphenylamine and dioctyl phthalate (DOP) can obtain desirable anti-aging effect, four lead are oxidized with the use of sulfuric acid three, anti-aging excellent effect, weighting agent precipitated silica, calcinated argil and calcium carbonate can increase rubber volume, reduce costs, improve and mediate performance, and reduce molding shrinkage.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (5)
1. a city rail cable sheath material, it is characterized in that, its raw material comprises major ingredient and auxiliary material, wherein major ingredient comprises 20-25 part W type chloroprene rubber and 13-17 part chlorinated polybutadiene by weight, wherein auxiliary material comprises 1-1.5 part magnesium oxide by weight, 1-1.5 part zinc oxide, 0.5-0.9 part aluminium hydroxide, 0.2-0.4 part stearic acid, 0.5-1 part altax, 0.6-0.8 part accelerant N A-22, 0.1 ~ 0.3 part of curing methyl thiuram, 1.0 ~ 1.3 parts of softening agent sulfuric acid three are oxidized four lead, 0.45 ~ 0.6 part of dioctyl phthalate (DOP), 1.2 ~ 1.4 parts of microcrystalline waxes, 0.9 ~ 1.2 part of ODA, 0.1 ~ 0.15 part of N, 4-aminodiphenylamine, 0.2 ~ 0.4 part of anti-aging agent 445, 5 ~ 8 parts of strengthening agent carbon black N660, 4.5 ~ 6 parts of strengthening agent semi-reinforcing hydrocarbon blacks, 3-4 part precipitated silica, 8 ~ 10 parts of calcinated argils, 3 ~ 4 parts of calcium carbonate, 0.7-1.4 part sulphur.
2. city according to claim 1 rail cable sheath material, is characterized in that, the weight part of W type chloroprene rubber is 23-25 part, and the weight part of chlorinated polybutadiene is 14-15 part.
3. city according to claim 2 rail cable sheath material, is characterized in that, the weight ratio of W type chloroprene rubber and chlorinated polybutadiene is 12:7.
4. city according to claim 1 rail cable sheath material, is characterized in that, magnesium oxide: zinc oxide: the weight ratio of aluminium hydroxide is (2-3): 3:1.
5. the city rail cable sheath material according to any one of claim 1-4, described auxiliary material comprises by weight: 1-1.5 part magnesium oxide, 1.5 parts of zinc oxide, 0.5 part of aluminium hydroxide, 0.2-0.4 part stearic acid, 0.6-0.8 part altax, 0.7-0.75 part accelerant N A-22, 0.1 ~ 0.3 part of curing methyl thiuram, 1.1-1.2 part softening agent sulfuric acid three is oxidized four lead, 0.5-0.55 part dioctyl phthalate (DOP), 1.3-1.4 part microcrystalline wax, 1.1-1.2 part ODA, 0.1 ~ 0.15 part of N, 4-aminodiphenylamine, 0.2-0.3 part anti-aging agent 445, 6-7 part strengthening agent carbon black N660, 5-5.5 part strengthening agent semi-reinforcing hydrocarbon black, 3.2-3.5 part precipitated silica, 9-10 part calcinated argil, 3.2-3.5 part calcium carbonate, 0.9-1.2 part sulphur.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410023119.0A CN103772777B (en) | 2014-01-18 | 2014-01-18 | A kind of city rail cable sheath material |
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| CN201410023119.0A CN103772777B (en) | 2014-01-18 | 2014-01-18 | A kind of city rail cable sheath material |
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| CN103772777B true CN103772777B (en) | 2015-08-12 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104448454B (en) * | 2014-11-26 | 2016-08-10 | 国网山东省电力公司章丘市供电公司 | A kind of cable insulation is with modified chlorinated butadiene rubber material |
| CN106117825A (en) * | 2016-07-25 | 2016-11-16 | 安徽德源电缆集团有限公司 | A kind of preparation method of ethylene propylene rubber insulated polychloroprene sheathed cable sheath material |
| CN108623867A (en) * | 2018-04-23 | 2018-10-09 | 太和县彬峰绳网有限公司 | A kind of anti-aging fire retardant glue rope |
| CN109134989A (en) * | 2018-06-22 | 2019-01-04 | 安徽旺达铜业发展有限公司 | A kind of wear-resisting stretch-proof cable jacket material and preparation method thereof |
| CN110010290B (en) * | 2019-04-17 | 2021-11-12 | 红旗电缆电器仪表集团有限公司 | Weather-proof long-life power cable |
| CN112358667B (en) * | 2020-12-01 | 2022-05-17 | 中国第一汽车股份有限公司 | Rubber composition and preparation method and application thereof |
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| CN101538380B (en) * | 2009-04-14 | 2011-06-15 | 张云龙 | Cable sheath material for coal mine |
| CN101864101B (en) * | 2010-06-12 | 2012-04-18 | 浙江远东电缆集团有限公司 | Formula of rubber for mining cable sheaths having high fire resistance and high tearing resistance |
| CN103497383A (en) * | 2013-10-25 | 2014-01-08 | 上海驰程化工工贸有限公司 | High-strength, tear-resisting and antiflaming sheath rubber for cable and preparation method thereof |
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