CN106084427A - A kind of fire resistant flame retardant track traffic communication cable - Google Patents
A kind of fire resistant flame retardant track traffic communication cable Download PDFInfo
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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
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
-
- 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
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
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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
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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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
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/22—Halogen free composition
-
- 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
Abstract
The invention discloses a kind of fire resistant flame retardant track traffic communication cable, if comprising: low smoke and zero halogen oversheath, the first flame retardant coating, high magnetic conduction steel-tape armouring layer, low smoke and zero halogen inner sheath, the second flame retardant coating, aluminium sheath, PE thermal insulation layer, water blocking layer carried interest strand insulation high heart yearn, the formula of low-smoke halogen-free polyethylene material includes: polyethylene 80 90 parts, phosphorous flame-retardant plasticizer BDP 5 10 parts, PE g MAH 15 25 parts, APP 10 30 parts, expansible graphite, 30 60 parts；Second flame retardant coating is fire-resistant silicon rubber material, and the formula of fire-resistant silicon rubber material includes: methyl vinyl silicone rubber 30 100 parts, Vitrified powder 4 15 parts, rigidity mineral powder 14 parts, Kaolin 8 30 parts, 500 DEG C of eutectics 28 parts, double two or four vulcanizing agents 4 15 parts.The most fire-retardant, absorbable major part heat, optical fiber can keep light transmittance for a long time.
Description
Technical field
The present invention relates to field of telecommunications cables, be specifically related to a kind of fire resistant flame retardant track traffic communication cable.
Background technology
Track traffic has personnel and concentrates the features such as intensive, flow of the people big, entrance and exit of the passage restriction, therefore, is handed over by track
The impact of logical environment particularity, the security requirement to urban rail transit construction is the highest.Track traffic once breaking out of fire, electric power leads to
Communication system is immediately terminated, and illumination and communication are all interrupted, and not only allows the people in fire be difficult to flee from dangerous situation, also to fire-fighting and rescue band
It is inconvenient to come, and in order to prevent fire, track traffic cable needs fire-resistant communication cable.Communication cable is needed to have good fire-resistant spy
Property, it is effectively improved the overload capacity of circuit, particularly during breaking out of fire, ensure that the integrity in circuit certain time, meet
The emergency processing of fire-fighting, in addition to the fire resistance of communication cable has higher requirements, in addition it is also necessary to have good shielding properties, it is ensured that
Safety in message transmitting procedure.
At present, the fire resistance of conventional track traffic communication cable, mainly by hindering the oversheath of cable
Combustion improves, and oversheath has certain fire resistance, it is possible to play the anti-flammability of a period of time when fire, but flame-retardant sheath
Can not effectively intercept heat transfer, heat can As time goes on, and the scorching of big fire high temperature, be deep into optical fiber and other
Material, optical fiber is heated and causes attenuation change big, and optical cable is difficult to keep for a long time the smoothness of fiber optic communication, loses transmission information
Function, therefore, track traffic communication cable can not unilaterally rely on low smoke and zero halogen sheath material to maintain its fire resistance.
Summary of the invention
It is an object of the invention to the problem above overcoming prior art to exist, it is provided that a kind of fire resistant flame retardant track traffic is led to
Communication cable, the communication cable of the present invention structurally has double-deck flame retardant coating, and structure is from outside to inside, the most fire-retardant, protects outward and can inhale
Receiving major part heat, the first flame retardant coating intercepts flame and heat further, and armor can intercept flame completely, remaining heat
Arriving sheath, sheath is internal also has one layer of second flame retardant coating, absorbs substantial amounts of heat so that optical fiber received heat reduces, light
Fibre can keep light transmittance for a long time.
For realizing above-mentioned technical purpose, reaching above-mentioned technique effect, the present invention is achieved through the following technical solutions:
A kind of fire resistant flame retardant track traffic communication cable, it includes the most successively: low smoke and zero halogen oversheath, first resistance to
If fire bed, high magnetic conduction steel-tape armouring layer, low smoke and zero halogen inner sheath, the second flame retardant coating, aluminium sheath, PE thermal insulation layer, water blocking layer carried interest
Strand insulation high heart yearn, described strand insulation high heart yearn is coated with by wrapped polyester belt, described strand insulation high heart yearn and described wrapped polyester
Factice for filling between band；
Described low smoke and zero halogen oversheath and low smoke and zero halogen inner sheath are low-smoke halogen-free polyethylene material, according to parts by weight
Meter, the formula of described low-smoke halogen-free polyethylene material includes:
Wherein, APP and expansible graphite weight ratio are 1:3, and APP and expansible graphite are at low smoke and zero halogen
Cooperative flame retardant in polythene material；
Described first flame retardant coating is made up of at least two-layer mica tape and at least three layers of Fire retardation fireproof material, and described mica tape is
Substrate, is covered with the mixed slurry of Fire retardation fireproof material on described mica tape, forms fire-resistant isinglass belt after overbaking, solidification,
Fire-resistant isinglass belt is at least capable of withstanding 1100 DEG C of high temperature as flame retardant coating；
Described second flame retardant coating is fire-resistant silicon rubber material, in parts by weight, and joining of described fire-resistant silicon rubber material
Side includes:
Wherein, Vitrified powder is mineral rock stone powder, and rigidity mineral powder is clay and claystone mineral powder, and the granularity of Vitrified powder is
400 mesh, the granularity of rigidity mineral powder is 5000 mesh, and kaolinic granularity is 200 mesh.
Further, the method preparing described second flame retardant coating includes:
Step one, based on the formula of described second flame retardant coating, weigh each composition；
Step 2, raw material is put into mill is carried out mixing, mixing uniformly；
Step 3, mixing uniform silastic material put in extruder, by single screw extrusion machine by silastic material
It is coated on outside aluminium sheath as the second flame retardant coating；
Step 4, enter in curing cage, point four sections of sulfurations, every section of curing temperature be respectively 280 DEG C, 220 DEG C, 160 DEG C,
120℃。
Further, it is coated with insulating barrier outside described strand insulation high heart yearn.
The invention has the beneficial effects as follows:
1, the communication cable of the present invention structurally has double-deck flame retardant coating, and structure is from outside to inside, the most fire-retardant, and protecting outward can
Absorbing major part heat, the first flame retardant coating intercepts flame and heat further, and armor can intercept flame completely, remaining heat
Amount arrives sheath, and sheath is internal also has one layer of second flame retardant coating, absorbs substantial amounts of heat so that optical fiber received heat reduces,
Optical fiber can keep light transmittance for a long time.
2, the low smoke and zero halogen oversheath of the present invention and low smoke and zero halogen inner sheath material use APP and inflatable stone
Ink cooperative flame retardant effect, is a very effective flame-retardant system in sheath material, and oxygen index (OI) is higher, reaches 31%, and it is fire-retardant
Better performances；With the addition of phosphorous flame-retardant plasticizer BDP in sheath material, BDP adds the heat release to flame-proof polyethylene and cigarette
Release has impact, and hot rate of release increases, and smoke release substantially increases, and plays plasticization in whole system.
3, first flame retardant coating of the present invention uses 2 layers or more layers substrate+3 layers or the structure of more layers Fire retardation fireproof material
Combination, is at least capable of withstanding 1100 DEG C of high temperature, and heat-proof quality is excellent, it is possible to be sufficiently used for different structure flame-retardant light；Second is resistance to
Fire bed uses fire-resistant silicon rubber, and it has good fire resistant flame retardant performance, and the Vitrified powder in the second flame retardant coating can make flame retardant coating
Porcelain under the high temperature conditions, has good heat-insulating flame-retardant performance, and the interpolation of eutectic connects silicone rubber as portal structure, makes
Silicone rubber is the firmest, and can promote that ion rearranges, and reduces the expansion rate after the second flame retardant coating high temperature sintering；Wherein
Rigidity mineral powder improve material hot strength, its hot strength is at more than 6MPa, and mechanical property is preferable.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of description, below with presently preferred embodiments of the present invention and coordinate accompanying drawing describe in detail as after.
The detailed description of the invention of the present invention is shown in detail in by following example and accompanying drawing thereof.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in embodiment of the present invention technology, in embodiment technology being described below
The required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only some realities of the present invention
Execute example, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to these accompanying drawings
Obtain other accompanying drawing.
Fig. 1 is the structural representation of the cable of the present invention；
Wherein, 10-low smoke and zero halogen oversheath, 20-the first flame retardant coating, 30-height magnetic conduction steel-tape armouring layer, 40-low smoke and zero halogen
Inner sheath, 50-the second flame retardant coating, 60-aluminium sheath, 70-PE thermal insulation layer, 80-water blocking layer, 90-strand insulation high heart yearn, 100-is wrapped
Polyester belt, 101-ointment.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
Embodiment 1
With reference to shown in Fig. 1, the structure of the communication cable in embodiment 1 includes the most successively: low smoke and zero halogen oversheath
10, the first flame retardant coating 20, high magnetic conduction steel-tape armouring layer 30, low smoke and zero halogen inner sheath the 40, second flame retardant coating 50, aluminium sheath 60, PE
If thermal insulation layer 70, water blocking layer 80 carried interest strand insulation high heart yearn 90, above-mentioned strand insulation high heart yearn 90 is coated with by wrapped polyester belt 100,
Factice for filling 101 between above-mentioned strand insulation high heart yearn 90 and above-mentioned wrapped polyester belt 100, and, above-mentioned strand insulation high heart yearn 90
Outside is coated with insulating barrier.
The communication cable of the present embodiment structurally has double-deck flame retardant coating, and structure is from outside to inside, the most fire-retardant, and protecting outward can
Absorbing major part heat, the first flame retardant coating intercepts flame and heat further, and armor can intercept flame completely, remaining heat
Amount arrives sheath, and sheath is internal also has one layer of second flame retardant coating, absorbs substantial amounts of heat so that optical fiber received heat reduces,
Optical fiber can keep light transmittance for a long time.
Wherein, above-mentioned low smoke and zero halogen oversheath 10 is low-smoke halogen-free polyethylene material with low smoke and zero halogen inner sheath 40, presses
According to parts by weight meter, the formula of above-mentioned low-smoke halogen-free polyethylene material is as shown in table 1.
Low-smoke halogen-free polyethylene material formula table in table 1 embodiment 1
| Component | Content (weight portion) |
| Polyethylene | 80 |
| Phosphorous flame-retardant plasticizer BDP | 5 |
| Compatilizer PE-g-MAH | 15 |
| APP | 10 |
| Expansible graphite | 30 |
Wherein, in above-mentioned formula, APP and expansible graphite weight ratio are 1:3, and APP is with inflatable
Graphite is cooperative flame retardant in low-smoke halogen-free polyethylene material, and through verification experimental verification, when APP and expansible graphite weight
When the ratio of amount is 1:3, its cooperative flame retardant performance is best.
Above-mentioned first flame retardant coating is made up of at least two-layer mica tape and at least three layers of Fire retardation fireproof material, and above-mentioned mica tape is
Substrate, is covered with the mixed slurry of Fire retardation fireproof material on above-mentioned mica tape, forms fire-resistant isinglass belt after overbaking, solidification,
Fire-resistant isinglass belt is at least capable of withstanding 1100 DEG C of high temperature as flame retardant coating；
Above-mentioned second flame retardant coating is fire-resistant silicon rubber material, in parts by weight, and joining of above-mentioned fire-resistant silicon rubber material
Side is as shown in table 2.
The formula table of the fire-resistant silicon rubber material in table 2 embodiment 1
| Component | Content (weight portion) |
| Methyl vinyl silicone rubber | 30 |
| Vitrified powder | 4 |
| Rigidity mineral powder | 1 |
| Kaolin | 8 |
| 500 DEG C of eutectics | 2 |
| Double two or four vulcanizing agents | 4 |
Wherein, Vitrified powder is mineral rock stone powder, and rigidity mineral powder is clay and claystone mineral powder, and the granularity of Vitrified powder is
400 mesh, the granularity of rigidity mineral powder is 5000 mesh, and kaolinic granularity is 200 mesh.
Embodiment 2
In communication cable structure such as embodiment 1 in embodiment 2 unanimously, wherein, above-mentioned low smoke and zero halogen oversheath 10 is with low
Cigarette Halogen inner sheath 40 is low-smoke halogen-free polyethylene material, in parts by weight, and above-mentioned low-smoke halogen-free polyethylene material
Formula is as shown in table 3.
Low-smoke halogen-free polyethylene material formula table in table 3 embodiment 2
| Component | Content (weight portion) |
| Polyethylene | 85 |
| Phosphorous flame-retardant plasticizer BDP | 7 |
| Compatilizer PE-g-MAH | 20 |
| APP | 20 |
| Expansible graphite | 40 |
Wherein, in above-mentioned formula, APP and expansible graphite weight ratio are 1:3, and APP is with inflatable
Graphite is cooperative flame retardant in low-smoke halogen-free polyethylene material, and through verification experimental verification, when APP and expansible graphite weight
When the ratio of amount is 1:3, its cooperative flame retardant performance is best.
Above-mentioned first flame retardant coating is made up of at least two-layer mica tape and at least three layers of Fire retardation fireproof material, and above-mentioned mica tape is
Substrate, is covered with the mixed slurry of Fire retardation fireproof material on above-mentioned mica tape, forms fire-resistant isinglass belt after overbaking, solidification,
Fire-resistant isinglass belt is at least capable of withstanding 1100 DEG C of high temperature as flame retardant coating；
Above-mentioned second flame retardant coating is fire-resistant silicon rubber material, in parts by weight, and joining of above-mentioned fire-resistant silicon rubber material
Side is as shown in table 4.
The formula table of the fire-resistant silicon rubber material in table 4 embodiment 2
Wherein, Vitrified powder is mineral rock stone powder, and rigidity mineral powder is clay and claystone mineral powder, and the granularity of Vitrified powder is
400 mesh, the granularity of rigidity mineral powder is 5000 mesh, and kaolinic granularity is 200 mesh.
Embodiment 3
In communication cable structure such as embodiment 1 in embodiment 3 unanimously, wherein, above-mentioned low smoke and zero halogen oversheath 10 is with low
Cigarette Halogen inner sheath 40 is low-smoke halogen-free polyethylene material, in parts by weight, and above-mentioned low-smoke halogen-free polyethylene material
Formula is as shown in table 5.
Low-smoke halogen-free polyethylene material formula table in table 5 embodiment 3
| Component | Content (weight portion) |
| Polyethylene | 90 |
| Phosphorous flame-retardant plasticizer BDP | 10 |
| Compatilizer PE-g-MAH | 25 |
| APP | 30 |
| Expansible graphite | 60 |
Wherein, in above-mentioned formula, APP and expansible graphite weight ratio are 1:3, and APP is with inflatable
Graphite is cooperative flame retardant in low-smoke halogen-free polyethylene material, and through verification experimental verification, when APP and expansible graphite weight
When the ratio of amount is 1:3, its cooperative flame retardant performance is best.
Above-mentioned first flame retardant coating is made up of at least two-layer mica tape and at least three layers of Fire retardation fireproof material, and above-mentioned mica tape is
Substrate, is covered with the mixed slurry of Fire retardation fireproof material on above-mentioned mica tape, forms fire-resistant isinglass belt after overbaking, solidification,
Fire-resistant isinglass belt is at least capable of withstanding 1100 DEG C of high temperature as flame retardant coating；
Above-mentioned second flame retardant coating is fire-resistant silicon rubber material, in parts by weight, and joining of above-mentioned fire-resistant silicon rubber material
Side is as shown in table 6.
The formula table of the fire-resistant silicon rubber material in table 6 embodiment 3
Wherein, Vitrified powder is mineral rock stone powder, and rigidity mineral powder is clay and claystone mineral powder, and the granularity of Vitrified powder is
400 mesh, the granularity of rigidity mineral powder is 5000 mesh, and kaolinic granularity is 200 mesh.
Performance test
Regulation according to GB GB/T 19216.21 and GB/T 20285 comes the fire resistance of test cable, its fire resistance
The result of energy is as shown in table 7-9.
Table 7 embodiment 1 fire resistance table
Table 8 embodiment 2 fire resistance table
Table 9 embodiment 3 fire resistance table
By the result in above-mentioned table 7-9 it can be seen that the combination property of embodiment 2 is preferable, implement with embodiment 2 for optimal
Example, low smoke and zero halogen oversheath in above-described embodiment and low smoke and zero halogen inner sheath material use APP and expansible graphite
Cooperative flame retardant effect, is a very effective flame-retardant system in sheath material, and oxygen index (OI) is higher, reaches 31%, its anti-flammability
Can be preferably；With the addition of phosphorous flame-retardant plasticizer BDP in sheath material, heat release and the cigarette of flame-proof polyethylene are released by the interpolation of BDP
Putting and have impact, hot rate of release increases, and smoke release substantially increases, and plays plasticization in whole system.
The first flame retardant coating in above-described embodiment uses 2 layers or more layers substrate+3 layers or more layers Fire retardation fireproof material
Structural grouping, is at least capable of withstanding 1100 DEG C of high temperature, and heat-proof quality is excellent, it is possible to be sufficiently used for different structure flame-retardant light；The
Two flame retardant coatings use fire-resistant silicon rubber, and it has good fire resistant flame retardant performance, and the Vitrified powder in the second flame retardant coating can make resistance to
Fire bed porcelain under the high temperature conditions, has good heat-insulating flame-retardant performance, and the interpolation of eutectic connects silicon rubber as portal structure
Glue, makes silicone rubber the firmest, and can promote that ion rearranges, and reduces the expansion after the second flame retardant coating high temperature sintering
Rate；Rigidity mineral powder therein improves the hot strength of material, and its hot strength is at more than 6MPa, and mechanical property is preferable.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple amendment to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and features of novelty phase one
The widest scope caused.
Claims (3)
1. a fire resistant flame retardant track traffic communication cable, it includes the most successively: low smoke and zero halogen oversheath, first fire-resistant
If layer, high magnetic conduction steel-tape armouring layer, low smoke and zero halogen inner sheath, the second flame retardant coating, aluminium sheath, PE thermal insulation layer, water blocking layer carried interest strand
Closing insulation core wire, described strand insulation high heart yearn is coated with by wrapped polyester belt, described strand insulation high heart yearn and described wrapped polyester belt
Between factice for filling；It is characterized in that,
Described low smoke and zero halogen oversheath and low smoke and zero halogen inner sheath are low-smoke halogen-free polyethylene material, in parts by weight,
The formula of described low-smoke halogen-free polyethylene material includes:
Wherein, APP and expansible graphite weight ratio are 1:3, and APP and expansible graphite are in the poly-second of low smoke and zero halogen
Cooperative flame retardant in alkene material；
Described first flame retardant coating is made up of at least two-layer mica tape and at least three layers of Fire retardation fireproof material, and described mica tape is base
Matter, is covered with the mixed slurry of Fire retardation fireproof material on described mica tape, forms fire-resistant isinglass belt after overbaking, solidification, resistance to
Fire mica tape is at least capable of withstanding 1100 DEG C of high temperature as flame retardant coating；
Described second flame retardant coating is fire-resistant silicon rubber material, in parts by weight, in the formula of described fire-resistant silicon rubber material
Including:
Wherein, Vitrified powder is mineral rock stone powder, and rigidity mineral powder is clay and claystone mineral powder, and the granularity of Vitrified powder is 400
Mesh, the granularity of rigidity mineral powder is 5000 mesh, and kaolinic granularity is 200 mesh.
A kind of fire resistant flame retardant track traffic communication cable the most according to claim 1, it is characterised in that prepare described second
The method of flame retardant coating includes:
Step one, based on the formula of described second flame retardant coating, weigh each composition；
Step 2, raw material is put into mill is carried out mixing, mixing uniformly；
Step 3, mixing uniform silastic material put in extruder, by single screw extrusion machine using silastic material as
Second flame retardant coating is coated on outside aluminium sheath；
In step 4, entrance curing cage, point four sections of sulfurations, every section of curing temperature is respectively 280 DEG C, 220 DEG C, 160 DEG C, 120 DEG C.
A kind of fire resistant flame retardant track traffic communication cable the most according to claim 1, it is characterised in that described strand insulation high
Insulating barrier it is coated with outside heart yearn.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107325372A (en) * | 2017-07-31 | 2017-11-07 | 贵州鑫阳科技股份有限公司 | Electronic connecting line |
| CN109616247A (en) * | 2017-10-04 | 2019-04-12 | 镇江长河电力技术有限公司 | A kind of impact resistance water-proof cable |
| CN109655980A (en) * | 2019-01-14 | 2019-04-19 | 徐亚琴 | A kind of easy heat radiation optical cable |
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| CN105238060A (en) * | 2015-11-16 | 2016-01-13 | 上海畅厘信息科技有限公司 | Flame retardant rubber |
| CN105741966A (en) * | 2016-05-04 | 2016-07-06 | 江苏亨通线缆科技有限公司 | Metal sheath bureau communication cable for rail transit |
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| CN105741966A (en) * | 2016-05-04 | 2016-07-06 | 江苏亨通线缆科技有限公司 | Metal sheath bureau communication cable for rail transit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107325372A (en) * | 2017-07-31 | 2017-11-07 | 贵州鑫阳科技股份有限公司 | Electronic connecting line |
| CN109616247A (en) * | 2017-10-04 | 2019-04-12 | 镇江长河电力技术有限公司 | A kind of impact resistance water-proof cable |
| CN109655980A (en) * | 2019-01-14 | 2019-04-19 | 徐亚琴 | A kind of easy heat radiation optical cable |
| CN109655980B (en) * | 2019-01-14 | 2020-11-17 | 宏安集团有限公司 | Optical cable easy to dissipate heat |
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| CN106084427B (en) | 2018-10-02 |
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