CN103788579B - A kind of high temperature resistant city rail cable sheath material - Google Patents
A kind of high temperature resistant city rail cable sheath material Download PDFInfo
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- CN103788579B CN103788579B CN201410023261.5A CN201410023261A CN103788579B CN 103788579 B CN103788579 B CN 103788579B CN 201410023261 A CN201410023261 A CN 201410023261A CN 103788579 B CN103788579 B CN 103788579B
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- cable sheath
- high temperature
- temperature resistant
- rail cable
- sheath material
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Abstract
The invention discloses a kind of high temperature resistant city rail cable sheath material, comprise major ingredient and auxiliary material: described major ingredient comprises epoxy resin, chloroprene rubber and natural rubber; Described auxiliary material comprises zinc oxide, promoting agent ferric oxide, barium oxide, stearic acid, curing methyl thiuram, N, N-bis-(ε-caprolactam) disulphide, ethylene thiourea, sulfuric acid three are oxidized four lead, dioctyl phthalate (DOP), microcrystalline wax, anti-aging agent IPPD, ODA, anti-aging agent 445, high wear-resistant carbon black, titanium dioxide, diatomite, calcium carbonate; Inserted by major ingredient in mill evenly mixing, melting temperature is 63-67 DEG C, and it is evenly mixing then to add auxiliary material; Be placed in by the mixing material obtained and vulcanizing press carries out sulfuration obtain high temperature resistant city rail cable sheath material, wherein curing temperature is 145-148 DEG C, and curing time is 2-4min.In the present invention, described high temperature resistant city rail cable sheath material is fire-retardant, and environmental protection, work-ing life is longer.
Description
Technical field
The present invention relates to city rail cable sheath material technical field, particularly relate to a kind of high temperature resistant 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 fire-retardant, environmental protection, the city rail cable sheath material of long service life becomes the current technical issues that need to address.
Summary of the invention
The present invention proposes a kind of high temperature resistant city rail cable sheath material, fire-retardant, environmental protection, work-ing life is longer.
The one high temperature resistant city rail cable sheath material that the present invention proposes, comprises major ingredient and auxiliary material:
Described major ingredient comprises by weight: 23-28 part epoxy resin, 12-16 part chloroprene rubber and 12-19 part natural rubber;
Described auxiliary material comprises by weight: 0.9-1.3 part zinc oxide, 0.5-1.2 part promoting agent ferric oxide, 0.4-0.6 part barium oxide, 0.6-0.8 part stearic acid, 0.3-0.5 part curing methyl thiuram, 1.1-1.4 part N, N-bis-(ε-caprolactam) disulphide, 0.15-0.3 part ethylene thiourea, 0.6-0.9 part sulfuric acid three is oxidized four lead, 0.3-0.6 part dioctyl phthalate (DOP), 1.2-1.5 part microcrystalline wax, 0.5-1 part anti-aging agent IPPD, 0.5-1 part ODA, 0.13-0.4 part anti-aging agent 445, 3-5 part high wear-resistant carbon black, 6-9 part titanium dioxide, 3-5 part diatomite, 9-12 part calcium carbonate,
Insert in mill evenly mixing by described major ingredient, melting temperature is 63-67 DEG C, and it is evenly mixing then to add described auxiliary material; Be placed in by the mixing material obtained and vulcanizing press carries out sulfuration obtain high temperature resistant city rail cable sheath material, wherein curing temperature is 145-148 DEG C, and curing time is 2-4min.
Preferably, the weight ratio of epoxy resin, chloroprene rubber and natural rubber is (6-7)/4/(3-4).
Preferably, zinc oxide, promoting agent ferric oxide and barytic weight ratio are (3-4)/(2-3)/(1-2).
Preferably, in mixing process, melting temperature is 64-66 DEG C.
Preferably, in sulfidation, curing temperature is 146-147 DEG C, and curing time is 2-3min.
In the present invention, use epoxy resin, chloroprene rubber and natural rubber are with the use of as base material, and conservative control promoting agent ferric oxide, barium oxide and the proportioning of zinc oxide 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 ethylene thiourea, curing methyl thiuram and N, N-bis-(ε-caprolactam) disulphide shares 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, curing methyl thiuram and N, N-bis-(ε-caprolactam) disulphide coordinates significantly can accelerate vulcanization rate, not only can reduce the usage quantity of curing methyl thiuram, and burning does not produce carcinogenic substance, environmental protection, add stearic acid and make activator, 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 IPPD, ODA, dioctyl phthalate (DOP) and anti-aging agent 445 can obtain desirable anti-aging effect, four lead are oxidized with the use of sulfuric acid three, anti-aging excellent effect, reinforcing filler uses high wear-resistant carbon black, titanium dioxide, diatomite and calcium carbonate can increase rubber volume, reduce costs, improve and mediate performance, and reduce molding shrinkage.
Embodiment
Embodiment 1
A kind of high temperature resistant city rail cable sheath material, comprises major ingredient and auxiliary material:
Described major ingredient comprises by weight: 27 parts of epoxy resin, 13 parts of chloroprene rubbers and 18 parts of natural rubbers;
Described auxiliary material comprises by weight: 1.2 parts of zinc oxide, 0.8 part of promoting agent ferric oxide, 0.5 part of barium oxide, 0.6 part of stearic acid, 0.4 part of curing methyl thiuram, 1.1 parts of N, N-bis-(ε-caprolactam) disulphide, 0.15 part of ethylene thiourea, 0.8 part of sulfuric acid three are oxidized four lead, 0.5 part of dioctyl phthalate (DOP), 1.3 parts of microcrystalline waxes, 0.7 part of anti-aging agent IPPD, 0.7 part of ODA, 0.22 part of anti-aging agent, 445,3.4 parts of high wear-resistant carbon blacks, 8.7 parts of titanium dioxides, 4.5 parts of diatomite, 9.9 parts of calcium carbonate;
Insert in mill evenly mixing by described major ingredient, melting temperature is 66 DEG C, and it is evenly mixing then to add described auxiliary material; Be placed in by the mixing material obtained and vulcanizing press carries out sulfuration obtain high temperature resistant city rail cable sheath material, wherein curing temperature is 147 DEG C, and curing time is 2min.
Embodiment 2
A kind of high temperature resistant city rail cable sheath material, comprises major ingredient and auxiliary material:
Described major ingredient comprises by weight: 27 parts of epoxy resin, 15 parts of chloroprene rubbers and 18 parts of natural rubbers;
Described auxiliary material comprises by weight: 1.2 parts of zinc oxide, 0.6 part of promoting agent ferric oxide, 0.5 part of barium oxide, 0.8 part of stearic acid, 0.4 part of curing methyl thiuram, 1.3 parts of N, N-bis-(ε-caprolactam) disulphide, 0.2 part of ethylene thiourea, 0.8 part of sulfuric acid three are oxidized four lead, 0.45 part of dioctyl phthalate (DOP), 1.3 parts of microcrystalline waxes, 0.9 part of anti-aging agent IPPD, 0.5 part of ODA, 0.2 part of anti-aging agent, 445,4.4 parts of high wear-resistant carbon blacks, 8 parts of titanium dioxides, 3.5 parts of diatomite, 10 parts of calcium carbonate;
Insert in mill evenly mixing by described major ingredient, melting temperature is 65 DEG C, and it is evenly mixing then to add described auxiliary material; Be placed in by the mixing material obtained and vulcanizing press carries out sulfuration obtain high temperature resistant city rail cable sheath material, wherein curing temperature is 148 DEG C, and curing time is 3min.
Embodiment 3
A kind of high temperature resistant city rail cable sheath material, comprises major ingredient and auxiliary material:
Described major ingredient comprises by weight: 28 parts of epoxy resin, 16 parts of chloroprene rubbers and 13 parts of natural rubbers;
Described auxiliary material comprises by weight: 1 part of zinc oxide, 1.1 parts of promoting agent ferric oxide, 0.5 part of barium oxide, 0.7 part of stearic acid, 0.4 part of curing methyl thiuram, 1.3 parts of N, N-bis-(ε-caprolactam) disulphide, 0.25 part of ethylene thiourea, 0.8 part of sulfuric acid three are oxidized four lead, 0.33 part of dioctyl phthalate (DOP), 1.25 parts of microcrystalline waxes, 0.9 part of anti-aging agent IPPD, 0.68 part of ODA, 0.24 part of anti-aging agent, 445,4.4 parts of high wear-resistant carbon blacks, 8.8 parts of titanium dioxides, 3.55 parts of diatomite, 11 parts of calcium carbonate;
Insert in mill evenly mixing by described major ingredient, melting temperature is 66 DEG C, and it is evenly mixing then to add described auxiliary material; Be placed in by the mixing material obtained and vulcanizing press carries out sulfuration obtain high temperature resistant city rail cable sheath material, wherein curing temperature is 146 DEG C, and curing time is 2min.
Embodiment 4
A kind of high temperature resistant city rail cable sheath material, comprises major ingredient and auxiliary material:
Described major ingredient comprises by weight: 25 parts of epoxy resin, 16 parts of chloroprene rubbers and 13 parts of natural rubbers;
Described auxiliary material comprises by weight: 1.1 parts of zinc oxide, 0.8 part of promoting agent ferric oxide, 0.5 part of barium oxide, 0.6-0.8 part stearic acid, 0.45 part of curing methyl thiuram, 1.3 parts of N, N-bis-(ε-caprolactam) disulphide, 0.25 part of ethylene thiourea, 0.8 part of sulfuric acid three are oxidized four lead, 0.52 part of dioctyl phthalate (DOP), 1.45 parts of microcrystalline waxes, 0.8 part of anti-aging agent IPPD, 0.48 part of ODA, 0.32 part of anti-aging agent, 445,4.5 parts of high wear-resistant carbon blacks, 8.5 parts of titanium dioxides, 4.5 parts of diatomite, 10.4 parts of calcium carbonate;
Insert in mill evenly mixing by described major ingredient, melting temperature is 64 DEG C, and it is evenly mixing then to add described auxiliary material; Be placed in by the mixing material obtained and vulcanizing press carries out sulfuration obtain high temperature resistant city rail cable sheath material, wherein curing temperature is 145 DEG C, and curing time is 2min.
Carry out performance test to above-mentioned high temperature resistant 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 | 15 |
| Elongation at break, % | ≥300 | 750 |
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 | -4.5 |
| Elongation at break, % | ≥250 | 580 |
| Extension at break velocity of variation, % | ≥-25 | -11 |
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 | 35 |
| Tension set after cooling, % | ≤25 | 8 |
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 | -14.7 |
| Extension at break velocity of variation, % | ≤±40 | -10.2 |
5, flame retardant properties test result is as follows:
| Test event | Standard-required | Test result |
| Smoke density, % | ≤300 | 150 |
| Oxygen index, % | ≥35 | 67 |
| Hydrogen halide burst size, mg/g | ≤90 | 35 |
| Poison exponent | ≤5 | 4.1 |
Above-mentioned high temperature resistant city rail cable sheath material, use epoxy resin, chloroprene rubber and natural rubber are with the use of as base material, and conservative control promoting agent ferric oxide, barium oxide and the proportioning of zinc oxide 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 ethylene thiourea, curing methyl thiuram and N, N-bis-(ε-caprolactam) disulphide shares 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, curing methyl thiuram and N, N-bis-(ε-caprolactam) disulphide coordinates significantly can accelerate vulcanization rate, not only can reduce the usage quantity of curing methyl thiuram, and burning does not produce carcinogenic substance, environmental protection, add stearic acid and make activator, 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 IPPD, ODA, dioctyl phthalate (DOP) and anti-aging agent 445 can obtain desirable anti-aging effect, four lead are oxidized with the use of sulfuric acid three, anti-aging excellent effect, reinforcing filler uses high wear-resistant carbon black, titanium dioxide, diatomite 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 high temperature resistant city rail cable sheath material, is characterized in that, comprise major ingredient and auxiliary material:
Described major ingredient comprises by weight: 23-28 part epoxy resin, 12-16 part chloroprene rubber and 12-19 part natural rubber;
Described auxiliary material comprises by weight: 0.9-1.3 part zinc oxide, 0.5-1.2 part promoting agent ferric oxide, 0.4-0.6 part barium oxide, 0.6-0.8 part stearic acid, 0.3-0.5 part tetramethyl-thiuram disulfide, 1.1-1.4 part N, N '-two (ε-caprolactam) disulphide, 0.15-0.3 part ethylene thiourea, 0.6-0.9 part sulfuric acid three is oxidized four lead, 0.3-0.6 part dioctyl phthalate (DOP), 1.2-1.5 part microcrystalline wax, 0.5-1 part anti-aging agent IPPD, 0.5-1 part ODA, 0.13-0.4 part anti-aging agent 445, 3-5 part high wear-resistant carbon black, 6-9 part titanium dioxide, 3-5 part diatomite, 9-12 part calcium carbonate,
Insert in mill evenly mixing by described major ingredient, melting temperature is 63-67 DEG C, and it is evenly mixing then to add described auxiliary material; Be placed in by the mixing material obtained and vulcanizing press carries out sulfuration obtain high temperature resistant city rail cable sheath material, wherein curing temperature is 145-148 DEG C, and curing time is 2-4min.
2. high temperature resistant city according to claim 1 rail cable sheath material, is characterized in that, the weight ratio of epoxy resin, chloroprene rubber and natural rubber is (6-7)/4/ (3-4).
3. high temperature resistant city according to claim 1 rail cable sheath material, is characterized in that, zinc oxide, promoting agent ferric oxide and barytic weight ratio are (3-4)/(2-3)/(1-2).
4. the high temperature resistant city rail cable sheath material according to any one of claim 1-3, is characterized in that, in mixing process, melting temperature is 64-66 DEG C.
5. high temperature resistant city according to claim 4 rail cable sheath material, is characterized in that, in sulfidation, curing temperature is 146-147 DEG C, and curing time is 2-3min.
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| CN201410023261.5A CN103788579B (en) | 2014-01-18 | 2014-01-18 | A kind of high temperature resistant city rail cable sheath material |
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| CN201410023261.5A CN103788579B (en) | 2014-01-18 | 2014-01-18 | A kind of high temperature resistant city rail cable sheath material |
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| CN103788579B true CN103788579B (en) | 2016-03-09 |
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Families Citing this family (5)
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| CN104882209B (en) * | 2015-06-09 | 2017-01-18 | 国网山东省电力公司费县供电公司 | Halogen-free flame-retardant fireproof cable |
| CN105185436B (en) * | 2015-07-26 | 2017-07-07 | 内蒙古仁达特种电缆有限公司 | A kind of single fire protection flame retarding high-tension cable |
| CN105504690A (en) * | 2016-01-12 | 2016-04-20 | 芜湖航天特种电缆厂股份有限公司 | Kieselguhr-modified anti-aging cable insulation material and preparation method thereof |
| CN107141541A (en) * | 2017-06-07 | 2017-09-08 | 合肥励仙电力工程有限公司 | A kind of cable cover(ing) and preparation method thereof |
| CN107915957A (en) * | 2017-11-27 | 2018-04-17 | 安徽华星电缆集团有限公司 | A kind of flame retardant cable heat-resisting material |
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| CN101314654A (en) * | 2008-06-10 | 2008-12-03 | 江西电缆有限责任公司 | Jacket formula for rubber jacketed flame-proof cable and production method thereof |
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