CN110294906A - A kind of low-smoke fireproof cable and preparation method thereof - Google Patents
A kind of low-smoke fireproof cable and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a kind of low-smoke fireproof cables and preparation method thereof, are related to technical field of electric wires and cables, solve because the cable of burning is easy to produce a large amount of flue gases with pollution, and the problem for causing the cable overall applicability ineffective.A kind of low-smoke fireproof cable, including cable conductor and CABLE MATERIALS, the CABLE MATERIALS include the component of following parts by weight: 90-110 parts of polyvinyl chloride resin material；6-10 parts of ammonium phosphomolybdate；1-4 parts of calcium carbonate；3-5 parts of hydrotalcite powder；8-12 parts of processing aid；6-15 parts of plasticizer；1.5-2.5 parts of carbon forming agent；5-10 parts of stabilizer；0.5-2 parts of color masterbatch.Low-smoke fireproof cable in the present invention is not likely to produce more pollution flue gas in burning, to the less pollution that environment generates, and then has good application effect.
Description
Technical field
The present invention relates to technical field of electric wires and cables, more specifically, it relates to a kind of low-smoke fireproof cable and its preparation
Method.
Background technique
Cable is usually every group by several or the cable of similar rope that several groups of conducting wires (every group at least two) are twisted
Mutually insulated between conducting wire, and be often twisted into around a center, entire outside is surrounded by the coating of high-insulation.
Super heat-resisting oil-resisting type polyvinyl chloride is disclosed in the Chinese invention application documents of Publication No. CN104312038A
CABLE MATERIALS and preparation method thereof, cable, the super heat-resisting oil-resisting type polyvinyl chloride cable material include that the ingredient of following parts by weight has:
100 parts of polyvinyl chloride resin, 16-21 parts of calcium zinc heat stabilizer, 60-80 parts of plasticizer, 0-10 parts of filler, 10-20 parts of modifying agent, antioxygen
0.5-1.0 parts of agent, 0.8-1.5 parts of lubricant, 0.5-1.0 parts of colorant, 0-6 parts of fire retardant.Preparation method includes at mixing
Manage step and melting extrusion processing and etc..The cable include by the super heat-resisting oil-resisting type polyvinyl chloride cable material preparation of the present invention and
At insulating protective layer.
In above-mentioned patent, by selecting specific modifying agent and calcium zinc heat stabilizer, plasticizer and other auxiliary agents to poly-
Vinyl chloride base-material is acted on, and is assigned its above-mentioned polyvinyl chloride cable material excellent heat resistance, is stablized it in high temperature
It is not easily decomposed, and there is excellent oil resistivity simultaneously, but polyvinyl resin can generate a large amount of hydrogen chloride in combustion
Ingredient can generate biggish pollution to environment, and then cause its overall applicability ineffective, it is, therefore, desirable to provide a kind of new
Scheme solves the above problems.
Summary of the invention
For in the prior art because the cable of burning is easy to produce a large amount of flue gases with pollution, and cause the cable whole
The bad problem of body application effect, the purpose of the present invention one are to provide a kind of low-smoke fireproof cable, by the way that ammonium phosphomolybdate is added
And hydrotalcite powder, and it is made to play the role of good compound synergic between each other, to solve the above technical problems, burning
When, it is not likely to produce more pollution flue gas, to the less pollution that environment generates, and then there is good application effect.
To achieve the above object one, the present invention provides the following technical scheme that
A kind of low-smoke fireproof cable, including cable conductor and CABLE MATERIALS, the CABLE MATERIALS include the component of following parts by weight:
90-110 parts of polyvinyl chloride resin material；
6-10 parts of ammonium phosphomolybdate；
1-4 parts of calcium carbonate；
3-5 parts of hydrotalcite powder；
8-12 parts of processing aid；
6-15 parts of plasticizer；
1.5-2.5 parts of carbon forming agent；
5-10 parts of stabilizer；
0.5-2 parts of color masterbatch.
By using above-mentioned technical proposal, polyvinyl chloride resin material has good physical property and chemical property, is low-smoke and flame retardant
The main material of cable.The quality of low-smoke fireproof cable entirety can be improved in processing aid, plasticizer, carbon forming agent and stabilizer,
Good corrosion resistance, temperature tolerance and anti-aging property are made it have, and integrally stretching intensity is higher, there is good quality.
And calcium carbonate has good flame retardant property, can be improved the flame retardant property of low-smoke fireproof cable entirety, and calcium carbonate can also mention
The surface smooth finish of high low-smoke fireproof cable, and there is good Acidinhibitor, reduce the generation of pollution flue gas.
The main component of hydrotalcite powder is hydrous magnesium silicate, not only contributes to be sufficiently mixed each component raw material one
It rises, moreover it is possible to improve the overall quality of low-smoke fireproof cable, and hydrotalcite powder is to the pollution generated after low-smoke fireproof cable burning
Flue gas has good absorption and catharsis, and ammonium phosphomolybdate can play good flame-retardant smoke inhibition effect, work as hydrotalcite powder
When being used in mixed way with ammonium phosphomolybdate, good compound synergic can be played the role of, generate low-smoke fireproof cable in burning
Pollution flue gas substantially reduces.
Further preferably, the function that parts by weight are 3-5 parts is additionally added in the component of the low-smoke fireproof cable to help
Agent, function additive includes benzoic acid ferrocene and organosilicon, and the ratio between parts by weight of benzoic acid ferrocene and organosilicon are 1:
(2-7)。
By using above-mentioned technical proposal, when low-smoke fireproof cable burns, benzoic acid ferrocene can promote to gather
The crosslinking of object is closed, reduces the generation of pollutant in flue gas, and promote imflammable gas to CO, CO2、H2The conversion of O plays suppression cigarette
Effect.Organosilicon can be improved the whole characteristics such as fire-retardant, heat-resisting, anti-oxidant, nonflammable of low-smoke fireproof cable, and can reduce
The pernicious gases such as cigarette, heat and CO that low-smoke fireproof cable generates in combustion promote to protect basis material, and delay at charcoal
And combustion process, reduce fire safety evaluating hidden danger.The function additive being made of benzoic acid ferrocene and organosilicon is added, it can be significantly
The yield for reducing low-smoke fireproof cable pollution flue gas in combustion, is conducive to improve that low-smoke fireproof cable is whole to answer
Use effect.
Further preferably, the fiber that parts by weight are 3-8 parts is additionally added in the component of the low-smoke fireproof cable to fill out
Material, and fiberfill selects one of glass fibre, brucite fiber, polypropylene fibre, polyester fiber and basalt fibre
Or it is a variety of.
By using above-mentioned technical proposal, glass fibre, brucite fiber, polypropylene fibre, polyester fiber and basalt
Fiber is good fiberfill, can be improved the quality of low-smoke fireproof cable entirety, extends making for low-smoke fireproof cable
Use the service life.Meanwhile fiber tool can guarantee good stability at relatively high temperatures, it can be to low-smoke fireproof cable in burning
The pollutant of generation generates absorption, and then reduces the generation of pollution flue gas, can play good environmental-protection function.
Further preferably, the white carbon black that parts by weight are 2-3 parts is additionally added in the component of the low-smoke fireproof cable.
By using above-mentioned technical proposal, white carbon black can be improved the heat-resisting quantity of low-smoke fireproof cable entirety, noninflammability,
Tasteless property and odorless property, and the main component of white carbon black is alumina silicate and calcium silicates, and adhesion strength with super strength can be to low
The pollutant that fume fire resistant cable is generated in burning generates absorption, and is gathered into precipitating, without being diffused into flue gas, into
And the content of pollutant in flue gas is reduced, play good environmental-protection function.
Further preferably, the stabilizer selects dibasic lead phosphite, second base lead sulfate, appointing in zinc stearate
It anticipates one kind.
By using above-mentioned technical proposal, dibasic lead phosphite, second base lead sulfate and zinc stearate are good
Nail is pressed, and there is excellent weatherability, the anti-oxidant of PVC cable, thermal stability and electrical insulating property is can be improved, is conducive to subtract
Few low-smoke fireproof cable produced pollution flue gas in burning, improves the application effect of low-smoke fireproof cable entirety.
Further preferably, the plasticizer selects tricresyl phosphate, trioctyl trimellitate (TOTM), terephthalic acid (TPA) two pungent
Any one in ester.
By using above-mentioned technical proposal, tricresyl phosphate, trioctyl trimellitate (TOTM) and dioctyl terephthalate are equal
For good plasticizer, the processing performance and endurance quality of low-smoke fireproof cable entirety can be improved, be conducive to obtain quality compared with
High product.
Further preferably, the processing aid selects dibutyl hydroxy toluene, nano zine oxide and tricresyl phosphate
In any one or more.
By using above-mentioned technical proposal, dibutyl hydroxy toluene has good antioxidation, nano zine oxide tool
There is good imparted screening capacity, tricresyl phosphate is a kind of heat-staple flame retardancy substance, selects dibutyl hydroxy
Any one or more in toluene, nano zine oxide and tricresyl phosphate can greatly improve low as function additive
The quality of fume fire resistant cable entirety.
The purpose of the present invention two is to provide a kind of preparation method of low-smoke fireproof cable, using the low cigarette of this method preparation
Flame retardant cable is not likely to produce more pollution flue gas in burning, and to the less pollution that environment generates, and then has good
Application effect.
To achieve the above object two, the present invention provides following technical solutions, comprising the following steps:
Step 1, stock weigh the raw material of corresponding parts by weight according to formula；
Step 2, mixing, by polyvinyl chloride resin material, ammonium phosphomolybdate, calcium carbonate, hydrotalcite powder, processing aid, plasticizer, carbon forming agent,
Stabilizer, color masterbatch are uniformly mixed, and are warming up to 60-70 DEG C of stirring 40-50min, are obtained mixture；
Mixture is put into extruding pelletization in double screw extruder, extruder temperature setting an are as follows: area by step 3, extruding pelletization
170-180 DEG C, two 180-190 DEG C of areas, three 190-195 DEG C of areas, revolving speed 40-60r/min obtains Low-smoke flame retardant cable material；
Step 4, it is overmolded, Low-smoke flame retardant cable material is melted, squeezes out, is coated on the side of cable conductor, is cooled and solidified
Afterwards, low-smoke fireproof cable is obtained.
In conclusion compared with prior art, the invention has the following advantages:
(1) hydrotalcite powder has good absorption and catharsis to the pollution flue gas generated after low-smoke fireproof cable burning,
And ammonium phosphomolybdate can play good flame-retardant smoke inhibition effect, when hydrotalcite powder and ammonium phosphomolybdate are used in mixed way, can play
Good compound synergic effect, the pollution flue gas for generating low-smoke fireproof cable in burning substantially reduce；
(2) function additive being made of benzoic acid ferrocene and organosilicon is added, the generation of pollutant in flue gas can be reduced, and
It can promote into charcoal, protect basis material, and mitigate combustion process, reduce fire safety evaluating hidden danger, be conducive to improve low-smoke and flame retardant electricity
The application effect of cable entirety；
(3) fiberfill is added, the quality of low-smoke fireproof cable entirety can not only be improved, additionally it is possible to exist to low-smoke fireproof cable
The pollutant generated when burning generates absorption, and then reduces the generation of pollution flue gas, can play good environmental protection and make
With.
Detailed description of the invention
Fig. 1 is the preparation technology flow chart of low-smoke fireproof cable in the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention will be described in detail.
Embodiment 1: a kind of low-smoke fireproof cable, including cable conductor and CABLE MATERIALS, each component of CABLE MATERIALS and its corresponding
Parts by weight it is as shown in table 1, and acquisition is made by the steps:
Step 1, stock weigh the raw material of corresponding parts by weight according to formula；
Step 2, mixing, by polyvinyl chloride resin material, ammonium phosphomolybdate, calcium carbonate, hydrotalcite powder, dibutyl hydroxy toluene, tripotassium phosphate
Phenyl ester, carbon forming agent, dibasic lead phosphite, color masterbatch are uniformly mixed, and are warming up to 65 DEG C of stirring 45min, are obtained mixture；
Mixture is put into extruding pelletization in double screw extruder, extruder temperature setting an are as follows: area by step 3, extruding pelletization
175 DEG C, two 185 DEG C of areas, three 195 DEG C of areas, revolving speed 50r/min obtains Low-smoke flame retardant cable material；
Step 4, it is overmolded, Low-smoke flame retardant cable material is melted, squeezes out, is coated on the side of cable conductor, is cooled and solidified
Afterwards, low-smoke fireproof cable is obtained.
Note: the color masterbatch in above-mentioned steps two is selected according to client, generally are as follows: phthalocyanine is red, phthalocyanine blue, phthalein
Cyanines are green, everbright fast red, macromolecular is red, macromolecular is yellow, permanent yellow, permanent violet, azophloxine；Cable conductor selects copper core.
Embodiment 2-8: a kind of low-smoke fireproof cable, including cable conductor and CABLE MATERIALS exist with the difference of embodiment 1
In each component of CABLE MATERIALS and its corresponding parts by weight are as shown in table 1.
Each component and its parts by weight in 1 embodiment 1-8 of table
Embodiment 9: a kind of low-smoke fireproof cable, difference from example 1 is that, parts by weight are 5 parts in step 2
Dibasic lead phosphite replaces with second base lead sulfate.
Embodiment 10: a kind of low-smoke fireproof cable, difference from example 1 is that, parts by weight are 5 in step 2
The dibasic lead phosphite of part replaces with zinc stearate.
Embodiment 11: a kind of low-smoke fireproof cable, difference from example 1 is that, parts by weight are 6 in step 2
The tricresyl phosphate of part replaces with trioctyl trimellitate (TOTM).
Embodiment 12: a kind of low-smoke fireproof cable, difference from example 1 is that, parts by weight are 6 in step 2
The tricresyl phosphate of part replaces with dioctyl terephthalate.
Embodiment 13: a kind of low-smoke fireproof cable, difference from example 1 is that, parts by weight are 8 in step 2
The dibutyl hydroxy toluene of part replaces with nano zine oxide.
Embodiment 14: a kind of low-smoke fireproof cable, difference from example 1 is that, parts by weight are 8 in step 2
The dibutyl hydroxy toluene of part replaces with 4 parts of nano zine oxide and 4 parts of tricresyl phosphate.
Embodiment 15: a kind of low-smoke fireproof cable, difference from example 1 is that, parts by weight are 8 in step 2
The dibutyl hydroxy toluene of part replaces with 3 dibutyl hydroxy toluene and 5 tricresyl phosphate.
Embodiment 16: a kind of low-smoke fireproof cable, difference from example 1 is that, step 2 is specifically configured to, and is mixed
Material, by 90 parts of polyvinyl chloride resin material, 6 parts of ammonium phosphomolybdate, 1 part of calcium carbonate, 3 parts of hydrotalcite powder, 8 parts of dibutyl hydroxy
Toluene, 6 parts of tricresyl phosphate, 1.5 parts of carbon forming agent, 5 parts of dibasic lead phosphite, 0.5 part of color masterbatch and 4 parts
Function additive is uniformly mixed, and function additive is made of the benzoic acid ferrocene that the ratio between parts by weight are 1:4.5 and organosilicon, then
65 DEG C of stirring 45min are warming up to, mixture is obtained.
Embodiment 17: a kind of low-smoke fireproof cable, difference from example 1 is that, step 2 is specifically configured to, and is mixed
Material, by 90 parts of polyvinyl chloride resin material, 6 parts of ammonium phosphomolybdate, 1 part of calcium carbonate, 3 parts of hydrotalcite powder, 8 parts of dibutyl hydroxy
Toluene, 6 parts of tricresyl phosphate, 1.5 parts of carbon forming agent, 5 parts of dibasic lead phosphite, 0.5 part of color masterbatch and 3 parts
Function additive is uniformly mixed, and function additive is made of the benzoic acid ferrocene that the ratio between parts by weight are 1:2 and organosilicon, is then risen
Temperature obtains mixture to 65 DEG C of stirring 45min.
Embodiment 18: a kind of low-smoke fireproof cable, difference from example 1 is that, step 2 is specifically configured to, and is mixed
Material, by 90 parts of polyvinyl chloride resin material, 6 parts of ammonium phosphomolybdate, 1 part of calcium carbonate, 3 parts of hydrotalcite powder, 8 parts of dibutyl hydroxy
Toluene, 6 parts of tricresyl phosphate, 1.5 parts of carbon forming agent, 5 parts of dibasic lead phosphite, 0.5 part of color masterbatch and 5 parts
Function additive is uniformly mixed, and function additive is made of the benzoic acid ferrocene that the ratio between parts by weight are 1:7 and organosilicon, is then risen
Temperature obtains mixture to 65 DEG C of stirring 45min.
Embodiment 19: a kind of low-smoke fireproof cable, difference from example 1 is that, step 2 is specifically configured to, and is mixed
Material, by 90 parts of polyvinyl chloride resin material, 6 parts of ammonium phosphomolybdate, 1 part of calcium carbonate, 3 parts of hydrotalcite powder, 8 parts of dibutyl hydroxy
Toluene, 6 parts of tricresyl phosphate, 1.5 parts of carbon forming agent, 5 parts of dibasic lead phosphite, 0.5 part of color masterbatch and 5.5 parts
Fiberfill be uniformly mixed, function additive by the ratio between parts by weight be 3:7 glass fibre and brucite fiber form, then
65 DEG C of stirring 45min are warming up to, mixture is obtained.
Embodiment 20: a kind of low-smoke fireproof cable, difference from example 1 is that, step 2 is specifically configured to, and is mixed
Material, by 90 parts of polyvinyl chloride resin material, 6 parts of ammonium phosphomolybdate, 1 part of calcium carbonate, 3 parts of hydrotalcite powder, 8 parts of dibutyl hydroxy
Toluene, 6 parts of tricresyl phosphate, 1.5 parts of carbon forming agent, 5 parts of dibasic lead phosphite, 0.5 part of color masterbatch and 3 parts
Fiberfill is uniformly mixed, and function additive is made of the polyester fiber that the ratio between parts by weight are 5:2 and basalt fibre, is then risen
Temperature obtains mixture to 65 DEG C of stirring 45min.
Embodiment 21: a kind of low-smoke fireproof cable, difference from example 1 is that, step 2 is specifically configured to, and is mixed
Material, by 90 parts of polyvinyl chloride resin material, 6 parts of ammonium phosphomolybdate, 1 part of calcium carbonate, 3 parts of hydrotalcite powder, 8 parts of dibutyl hydroxy
Toluene, 6 parts of tricresyl phosphate, 1.5 parts of carbon forming agent, 5 parts of dibasic lead phosphite, 0.5 part of color masterbatch and 8 parts
Fiberfill is uniformly mixed, and function additive is fine by the brucite fiber, polypropylene fibre and polyester that the ratio between parts by weight are 3:2:5
Dimension composition, then heats to 65 DEG C of stirring 45min, obtains mixture.
Embodiment 22: a kind of low-smoke fireproof cable, difference from example 1 is that, step 2 is specifically configured to, and is mixed
Material, by 90 parts of polyvinyl chloride resin material, 6 parts of ammonium phosphomolybdate, 1 part of calcium carbonate, 3 parts of hydrotalcite powder, 8 parts of dibutyl hydroxy
Toluene, 6 parts of tricresyl phosphate, 1.5 parts of carbon forming agent, 5 parts of dibasic lead phosphite, 0.5 part of color masterbatch and 2.5 parts
White carbon black be uniformly mixed, then heat to 65 DEG C of stirring 45min, obtain mixture.
Embodiment 23: a kind of low-smoke fireproof cable, difference from example 1 is that, step 2 is specifically configured to, and is mixed
Material, by 90 parts of polyvinyl chloride resin material, 6 parts of ammonium phosphomolybdate, 1 part of calcium carbonate, 3 parts of hydrotalcite powder, 8 parts of dibutyl hydroxy
Toluene, 6 parts of tricresyl phosphate, 1.5 parts of carbon forming agent, 5 parts of dibasic lead phosphite, 0.5 part of color masterbatch and 2 parts
White carbon black is uniformly mixed, and is then heated to 65 DEG C of stirring 45min, is obtained mixture.
Embodiment 24: a kind of low-smoke fireproof cable, difference from example 1 is that, step 2 is specifically configured to, and is mixed
Material, by 90 parts of polyvinyl chloride resin material, 6 parts of ammonium phosphomolybdate, 1 part of calcium carbonate, 3 parts of hydrotalcite powder, 8 parts of dibutyl hydroxy
Toluene, 6 parts of tricresyl phosphate, 1.5 parts of carbon forming agent, 5 parts of dibasic lead phosphite, 0.5 part of color masterbatch and 3 parts
White carbon black is uniformly mixed, and is then heated to 65 DEG C of stirring 45min, is obtained mixture.
Comparative example 1: a kind of low-smoke fireproof cable, difference from example 1 is that, step 2 is specifically configured to, and is mixed
Material, by 90 parts of polyvinyl chloride resin material, 6 parts of ammonium phosphomolybdate, 1 part of calcium carbonate, 8 parts of dibutyl hydroxy toluene, 6 parts of phosphoric acid
Front three phenyl ester, 1.5 parts of carbon forming agent, 5 parts of dibasic lead phosphite, 0.5 part of color masterbatch are uniformly mixed, and are warming up to 65 DEG C and are stirred
45min is mixed, mixture is obtained.
Comparative example 2: a kind of low-smoke fireproof cable, difference from example 1 is that, step 2 is specifically configured to, and is mixed
Material, by 90 parts of polyvinyl chloride resin material, 1 part of calcium carbonate, 3 parts of hydrotalcite powder, 8 parts of dibutyl hydroxy toluene, 6 parts of phosphoric acid
Front three phenyl ester, 1.5 parts of carbon forming agent, 5 parts of dibasic lead phosphite, 0.5 part of color masterbatch are uniformly mixed, and are warming up to 65 DEG C and are stirred
45min is mixed, mixture is obtained.
Comparative example 3: a kind of low-smoke fireproof cable, difference from example 1 is that, step 2 is specifically configured to, and is mixed
Material, by 90 parts of polyvinyl chloride resin material, 1 part of calcium carbonate, 8 parts of dibutyl hydroxy toluene, 6 parts of tricresyl phosphate, 1.5 parts
Carbon forming agent, 5 parts of dibasic lead phosphite, 0.5 part of color masterbatch be uniformly mixed, be warming up to 65 DEG C of stirring 45min, mixed
Close material.
Performance test
Test specimen: using the low-smoke fireproof cable obtained in embodiment 1-24 as test specimen 1-24, using comparative example 1-3
The low-smoke fireproof cable of middle acquisition is as control sample 1-3.
Test method: by test specimen 1-24 and control sample 1-3 according to GB12666.5-90 " wire and cable combustion test
Method " in Part V: bunchy wire and cable burn test method, first production standard sample, then according to standard content exhibition
Test is opened, and measures charred portion height achieved.
Test result: the test result of test specimen 1-24 and control sample 1-3 are as shown in table 2.As shown in Table 2, by trying
The test result comparison for testing sample 1-8 and control sample 1-3 can obtain, and hydrotalcite powder or ammonium phosphomolybdate is added, advantageously reduces
Charing height, and when it is used in mixed way, good compound synergic can be played the role of, make low-smoke fireproof cable generation when burning
Pollution flue gas substantially reduce, and then carbonize height be greatly reduced.By the test of test specimen 9-15 and test specimen 1-8
Comparative result can obtain, plasticizer, stabilizer and processing aid disclosed in this invention, be suitable for the system of low-smoke fireproof cable
It is standby, and make it have higher quality.By the test result of test specimen 16-18 and test specimen 1-8 comparison can obtain, be added by
The function additive of benzoic acid ferrocene and organosilicon composition, can reduce the generation of pollutant in flue gas, and then substantially reduce charcoal
Change height.Being compared respectively by the test result of test specimen 19-21,22-24 and test specimen 1-8 can obtain, and fiberfill is added
White carbon black is obtained, also can reduce charing height, and advantageously reduce the generation of flue gas.
The test result of table 2 test specimen 1-24 and control sample 1-3
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
For those of ordinary skill, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of low-smoke fireproof cable, including cable conductor and CABLE MATERIALS, which is characterized in that the CABLE MATERIALS includes following weight
The component of number:
90-110 parts of polyvinyl chloride resin material；
6-10 parts of ammonium phosphomolybdate；
1-4 parts of calcium carbonate；
3-5 parts of hydrotalcite powder；
8-12 parts of processing aid；
6-15 parts of plasticizer；
1.5-2.5 parts of carbon forming agent；
5-10 parts of stabilizer；
0.5-2 parts of color masterbatch.
2. low-smoke fireproof cable according to claim 1, which is characterized in that also add in the component of the low-smoke fireproof cable
Entering to have parts by weight is 3-5 parts of function additive, and function additive includes benzoic acid ferrocene and organosilicon, and benzoic acid ferrocene
It is 1:(2-7 with the ratio between parts by weight of organosilicon).
3. low-smoke fireproof cable according to claim 1, which is characterized in that also add in the component of the low-smoke fireproof cable
Entering to have parts by weight is 3-8 parts of fiberfill, and fiberfill is selected glass fibre, brucite fiber, polypropylene fibre, gathered
One of ester fiber and basalt fibre are a variety of.
4. low-smoke fireproof cable according to claim 1, which is characterized in that also add in the component of the low-smoke fireproof cable
Entering to have parts by weight is 2-3 parts of white carbon black.
5. low-smoke fireproof cable according to claim 1, which is characterized in that the stabilizer selects two alkali formula phosphorous acid
Lead, second base lead sulfate, any one in zinc stearate.
6. low-smoke fireproof cable according to claim 1, which is characterized in that the plasticizer selection tricresyl phosphate,
Any one in trioctyl trimellitate (TOTM), dioctyl terephthalate.
7. low-smoke fireproof cable according to claim 1, which is characterized in that the processing aid selects butylated hydroxy-a
Any one or more in benzene, nano zine oxide and tricresyl phosphate.
8. a kind of preparation method of low-smoke fireproof cable as described in claim 1, which comprises the following steps:
Step 1, stock weigh the raw material of corresponding parts by weight according to formula；
Step 2, mixing, by polyvinyl chloride resin material, ammonium phosphomolybdate, calcium carbonate, hydrotalcite powder, processing aid, plasticizer, carbon forming agent,
Stabilizer, color masterbatch are uniformly mixed, and are warming up to 60-70 DEG C of stirring 40-50min, are obtained mixture；
Mixture is put into extruding pelletization in double screw extruder, extruder temperature setting an are as follows: area by step 3, extruding pelletization
170-180 DEG C, two 180-190 DEG C of areas, three 190-195 DEG C of areas, revolving speed 40-60r/min obtains Low-smoke flame retardant cable material；
Step 4, it is overmolded, Low-smoke flame retardant cable material is melted, squeezes out, is coated on the side of cable conductor, is cooled and solidified
Afterwards, low-smoke fireproof cable is obtained.
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