CN109942993A - A kind of low smoke and low halogen cable material and preparation method thereof - Google Patents
A kind of low smoke and low halogen cable material and preparation method thereof Download PDFInfo
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- CN109942993A CN109942993A CN201910245330.XA CN201910245330A CN109942993A CN 109942993 A CN109942993 A CN 109942993A CN 201910245330 A CN201910245330 A CN 201910245330A CN 109942993 A CN109942993 A CN 109942993A
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Abstract
The invention discloses a kind of low smoke and low halogen cable materials and preparation method thereof, its raw material of the invention includes: 40-90 parts of Corvic by weight, 10-50 parts of glyceride, 6-10 parts of asbestos, 9-20 parts of aluminum oxide, 5-10 parts of modified aluminium hydroxide fire retardant, 2-9 parts of inorganic filler, 15-25 parts of plasticizer, 3-12 parts of dispersing agent, 1-6 parts and titanium dioxide 16-30 parts of silane coupling agent, specifically includes the following steps: S1, first choose suitable Corvic, asbestos, titanium dioxide and aluminum oxide, the present invention relates to cable material processing technique fields.The low smoke and low halogen cable material and preparation method thereof; by being resistant to the intolerable high temperature of conventional material institute; with fire retardant performance outstanding; in the scene of fire that other reasons cause, can play a protective role to circuit, that keeps in communication is smooth; certain guarantee is provided for the rescue of people; and raw material itself is safe and harmless, and it is nontoxic, there is good environmental protection effect.
Description
Technical field
The present invention relates to cable material processing technique field, specially a kind of low smoke and low halogen cable material and its preparation
Method.
Background technique
Cable is usually the cable of similar rope as several or made of several groups of wire strandings, between every group of conducting wire mutually absolutely
Edge, and be often twisted into around a center, entire outside is surrounded by the coating of high-insulation, and multi rack is located at aerial or is mounted in ground
Under, it is water-bed, be used for telecommunication or power Transmission, fire retardant is mainly organic and inorganic at present, and halogen and non-halogen, organic is with bromine
System, nitrogen system and red phosphorus and compound are some fire retardants of representative, inorganic mainly antimony oxide, magnesium hydroxide, hydroxide
Aluminium, the flame-retardant systems such as silicon systems, in general organic fire-resisting have good affinity in the plastic, and bromide fire retardant is in organic resistance
Absolute predominance is occupied in combustion system, although " blame " multiterminal have been difficult to always other fire retardant systems and take in environmental issue
Generation.
Some is caused by short circuit to the reason of existing fire occurs, and the flame retardant effect of most cables is undesirable,
The risk for increasing scene of fire, can not prevent the sprawling of the intensity of a fire, be easy to cause life injury and property loss, and cable
It can also produce thick smoke when burning and toxic gas, be harmful to the human body, increase security risk.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of low smoke and low halogen cable material and preparation method thereof,
The flame retardant effect for solving most cables is undesirable, increases the risk of scene of fire, produces thick smoke and toxic gas, increases
The problem of security risk.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of low smoke and low halogen cable
Material, raw material include: 40-90 parts of Corvic, 10-50 parts of glyceride, 6-10 parts of asbestos, three oxidations two by weight
9-20 parts of aluminium, 5-10 parts of modified aluminium hydroxide fire retardant, 2-9 parts of inorganic filler, 15-25 parts of plasticizer, 3-12 parts of dispersing agent, silicon
1-6 parts and titanium dioxide 16-30 parts of alkane coupling agent.
Preferably, raw material includes following component: 60 parts of Corvic, 30 parts of glyceride, 8 parts of asbestos, three oxidations
Two 15 parts of aluminium, 8 parts of modified aluminium hydroxide fire retardant, 5 parts of inorganic filler, 20 parts of plasticizer, 8 parts of dispersing agent, 4 parts of silane coupling agent
With 23 parts of titanium dioxide.
Preferably, raw material includes following component: 40 parts of Corvic, 10 parts of glyceride, 6 parts of asbestos, three oxidations
Two 9 parts of aluminium, 5 parts of modified aluminium hydroxide fire retardant, 2 parts of inorganic filler, 15 parts of plasticizer, 3 parts of dispersing agent, 1 part of silane coupling agent
With 16 parts of titanium dioxide.
Preferably, raw material includes following component: 90 parts of Corvic, 50 parts of glyceride, 10 parts of asbestos, three oxidations
Two 20 parts of aluminium, 10 parts of modified aluminium hydroxide fire retardant, 9 parts of inorganic filler, 25 parts of plasticizer, 12 parts of dispersing agent, silane coupling agent 6
Part and 30 parts of titanium dioxide.
Preferably, the inorganic filler is one or more of titanium dioxide, calcium carbonate, talcum powder and kaolin
Mixture.
Preferably, the silane coupling agent is vinyltriethoxysilane, vinyltrimethoxysilane and vinyl
One of dimethoxysilane is a variety of.
Preferably, a kind of strands manufacturing equipment specifically includes that main body is divided by middle partition and is kneaded cylinder and dehumidifying two, cylinder
Bearing support is installed at cylinder chamber, main shaft both ends, and wooden dipper shell is mounted on the both ends of main body, and slide valve is sealed in main body by sealing element, wooden dipper
Shell section is equipped with a sliding slot and reciprocatingly slides for slide valve, and rotor is mounted on two different locations of main shaft with flat key connection respectively,
Axial simultaneously to alter column in cross, respectively there are a parallel contour isometric curve in the two sides of rotor and are formed at work altogether
Yoke, slide valve closes rotor from three side sealing, and cylinder is divided into suction chamber and discharge chamber, and the rotation of rotor makes suction chamber form vacuum,
Gas is sucked by feeding-passage, pressure is formed by closing chamber, then be discharged through runner by discharge chamber, forms flow.
Preferably, wooden dipper shell and middle partition have same trench, make slide valve that can only reciprocatingly slide in the trench；Rotor
Respective outer end equipped with sealing mechanism prevent fluid from the power end of main shaft overflow.
Preferably, adjustable retaining ring is embedded in wooden dipper shell inner fixed bearing exterior ring cap, and is again sealed off for main shaft；Humidification water tank is set
In the top of complete machine, lubricating oil is inputted into slide valve slideway by two petroleum pipelines.
Corvic main ingredient is polyvinyl chloride, additionally incorporates other compositions to enhance its heat resistance, toughness is prolonged
Malleability etc., it be liked deeply in the world today, a kind of rather popular and synthetic material for being also widely used, its whole world
Usage amount is in second in various synthetic materials.
Glyceride is often referred to be generated by glycerol and fatty acid (including saturated fatty acid and unsaturated fatty acid) through esterification
Esters, glyceride is neutral substance, not soluble in water, is dissolved in organic solvent, it may occur that hydrolysis.
For asbestos at 900 DEG C or less, asbestos are the low inert diluent of thermal conductivity, but at 900 DEG C~1400 DEG C
When, asbestos can release the crystallization water；At 1400 DEG C or more, asbestos can change the endothermic reaction of chemical structure, and in asbestos
Certain components be also possible to react to each other with certain thermal degradation products of high polymer, at this moment asbestos just become active filler,
Using inorganic filler as negative effect of the filler to polymeric substrate performance when fire retardant, should be reduced to the greatest extent, material at high temperature is reduced
Combustible component generated is cracked, heat-physical property of material is improved, and prevents filler from physical conversion occurs, it is noticeable
That certain inorganic compounds that can be used as fire retardant are the catalyst of polymerization and polycondensation reaction, they to the burning of polymer or
Decomposition product also has catalytic action, therefore can promote into charcoal.
Aluminum oxide chemical formula Al2O3 is a kind of compound of high rigidity, and fusing point is 2054 DEG C, and boiling point is 2980 DEG C,
Ionizable ionic crystals at high temperature is usually used in manufacturing refractory material.
Plasticizer is the phthalate in a kind of high molecular material auxiliary agent and environmental estrogens
(PAEsphthalates), many kinds of, the most common kind is DEHP (trade name DOP), DEHP chemical name neighbour benzene two
Formic acid two (2- ethyl hexyl) ester is a kind of colourless, liquid with no taste, is industrially widely used.
Dispersing agent is the more succimide class ashless additives of polyisobutene, has preferable dispersibility and excellent high temperature
Stability.
Titanium dioxide scientific name is titanium dioxide (TitaniumDioxide), it is a kind of dyestuff and pigment, molecular formula are
TiO2, molecular weight 79.8658.
The invention also discloses a kind of preparation methods of low smoke and low halogen cable material, specifically includes the following steps:
S1, suitable Corvic, asbestos, titanium dioxide and aluminum oxide are first chosen, then by the poly- of selection
Vinyl chloride resin, asbestos, titanium dioxide and aluminum oxide, which pour into, carries out mixing in mixer, 60-90 DEG C at a temperature of it is mixed
Refining 1-2 hours；
S2, suitable plasticizer, dispersing agent and silane coupling agent then is added, it is small to be kneaded 2-3 with 80-100 DEG C of temperature
When, at this time the revolving speed of mixer be 400-600 revs/min, carry out high-speed stirred mixing, finally add suitable glyceride,
Modified aluminium hydroxide fire retardant and inorganic filler are mixed, and compound is obtained；
S3, close close material machine, compound made to carry out natural cooling, when the compound in mixer be cooled to 90 DEG C when
It waits, the compound in mixer is poured out；
S4, it compound is poured into dual-screw pelletizer is granulated, the temperature in pelletizer is controlled at 140-160 DEG C,
It is granulated after completing, material is put into drying machine and be dried, the control of the temperature of drying machine is at 100 DEG C, drying time 1-2
Hour, obtain low smoke and low halogen cable material.
(3) beneficial effect
The present invention provides a kind of low smoke and low halogen cable materials and preparation method thereof.Have compared with prior art with
Down the utility model has the advantages that the low smoke and low halogen cable material and preparation method thereof, raw material include: polyvinyl chloride tree by weight
40-90 parts of rouge, 10-50 parts of glyceride, 6-10 parts of asbestos, 9-20 parts of aluminum oxide, 5-10 parts of modified aluminium hydroxide fire retardant,
2-9 parts of inorganic filler, 15-25 parts of plasticizer, 3-12 parts of dispersing agent, 1-6 parts of silane coupling agent and 16-30 parts of titanium dioxide are low
The preparation methods of smoke low-halogen flame retardant cable strands specifically includes the following steps: S1, by the Corvic of selection, asbestos, two
Titanium oxide and aluminum oxide pour into and carry out mixing in mixer, and suitable plasticizer, dispersing agent and silane idol then S2, is added
Join agent, carry out high-speed stirred mixing, finally adds suitable glyceride, modified aluminium hydroxide fire retardant and inorganic filler and carry out
Mixing obtains compound, S3, closes close material machine, so that compound is carried out natural cooling, when the compound in mixer is cooled to 90
DEG C when, the compound in mixer is poured out, S4, compound is poured into dual-screw pelletizer is granulated, be granulated
At later, material being put into drying machine and is dried, at 100 DEG C, drying time is 1-2 hours for the temperature control of drying machine,
Low smoke and low halogen cable material is obtained, by being resistant to the intolerable high temperature of conventional material institute, there is fire prevention outstanding
Flame retardant property can play a protective role to circuit in the scene of fire that other reasons cause, and that keeps in communication is smooth, be people
Rescue certain guarantee is provided, and raw material itself is safe and harmless, nontoxic, there is good environmental protection effect,
Preparation process is extremely simple, and production cost is low.
Detailed description of the invention
Fig. 1 is comparative experimental data statistical form figure of the present invention；
Fig. 2 is strands manufacturing equipment schematic diagram of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the embodiment of the present invention provides a kind of three kinds of technical solutions: preparation of low smoke and low halogen cable material
Method specifically includes following embodiment:
Embodiment one:
S1,60 parts of Corvics, 8 parts of asbestos, 23 parts of titanium dioxide and 15 parts of aluminum oxides are first chosen, then will
Choose 60 parts of Corvics, 8 parts of asbestos, 23 parts of titanium dioxide and 15 parts of aluminum oxides pour into mixer carry out it is close
Refining, 75 DEG C at a temperature of be kneaded 1.5 hours；
S2,20 parts of plasticizer, 8 parts of dispersing agents and 4 parts of silane coupling agents are then added, it is small to be kneaded 2.5 with 90 DEG C of temperature
When, the revolving speed of mixer is 500 revs/min at this time, carries out high-speed stirred mixing, finally adds 30 parts of glyceride, 8 parts of modifications
Aluminium hydroxide fire retardant and 5 parts of inorganic fillers are mixed, and compound is obtained；
S3, close close material machine, compound made to carry out natural cooling, when the compound in mixer be cooled to 90 DEG C when
It waits, the compound in mixer is poured out；
S4, it compound is poured into dual-screw pelletizer is granulated, the temperature in pelletizer is controlled at 150 DEG C, is granulated
After completion, material is put into drying machine and is dried, at 100 DEG C, drying time is 1.5 small for the temperature control of drying machine
When, obtain low smoke and low halogen cable material.
Embodiment two:
S1,40 parts of Corvics, 6 parts of asbestos, 16 parts of titanium dioxide and 9 parts of aluminum oxides are first chosen, it then will choosing
40 parts of Corvics, 6 parts of asbestos, 16 parts of titanium dioxide and the 9 parts of aluminum oxides taken pour into and carry out mixing in mixer,
60 DEG C at a temperature of be kneaded 1 hour；
S2,15 parts of plasticizer, 3 parts of dispersing agents and 1 part of silane coupling agent is then added, is kneaded 2 hours with 80 DEG C of temperature,
The revolving speed of mixer is 400 revs/min at this time, carries out high-speed stirred mixing, finally adds 10 parts of glyceride, 5 parts of modified hydrogen
Alumina fire retardant and 2 parts of inorganic fillers are mixed, and compound is obtained；
S3, close close material machine, compound made to carry out natural cooling, when the compound in mixer be cooled to 90 DEG C when
It waits, the compound in mixer is poured out；
S4, it compound is poured into dual-screw pelletizer is granulated, the temperature in pelletizer is controlled at 140 DEG C, is granulated
After completion, material being put into drying machine and is dried, at 100 DEG C, drying time is 1 hour for the temperature control of drying machine,
Obtain low smoke and low halogen cable material.
Embodiment three:
S1,90 parts of Corvics, 10 parts of asbestos, 30 parts of titanium dioxide and 20 parts of aluminum oxides are first chosen, then will
Choose 90 parts of Corvics, 10 parts of asbestos, 30 parts of titanium dioxide and 20 parts of aluminum oxides pour into mixer carry out it is close
Refining, 90 DEG C at a temperature of be kneaded 2 hours；
S2,25 parts of plasticizer, 12 parts of dispersing agents and 6 parts of silane coupling agents are then added, it is small to be kneaded 3 with 100 DEG C of temperature
When, at this time the revolving speed of mixer be 600 revs/min, carry out high-speed stirred mixing, finally add 50 parts of glyceride, 10 parts change
Property aluminium hydroxide fire retardant and 9 parts of inorganic fillers are mixed, and compound is obtained；
S3, close close material machine, compound made to carry out natural cooling, when the compound in mixer be cooled to 90 DEG C when
It waits, the compound in mixer is poured out；
S4, it compound is poured into dual-screw pelletizer is granulated, the temperature in pelletizer is controlled at 160 DEG C, is granulated
After completion, material being put into drying machine and is dried, at 100 DEG C, drying time is 2 hours for the temperature control of drying machine,
Obtain low smoke and low halogen cable material.
Example IV:
According to fig. 2, a kind of strands manufacturing equipment specifically includes that main body 1 is divided by middle partition 10 and is kneaded cylinder and dehumidifying cylinder
Bearing support is installed at Liang Ge cylinder chamber, 4 both ends of main shaft, and wooden dipper shell 2 is mounted on the both ends of main body 1, and slide valve 6 is sealed in by sealing element 12
In main body 1,2 section of wooden dipper shell is equipped with a sliding slot 14 and reciprocatingly slides for slide valve 6, and rotor 7 is mounted on main shaft 4 with flat key connection respectively
Two different locations, while it is axial alter column in cross, respectively there are a contour isometric curve in parallel in the two sides of rotor 7 simultaneously
Conjugation is formed at work, and slide valve 6 closes rotor 7 from three side sealing, and cylinder is divided into suction chamber and discharge chamber, the rotation of rotor 7
So that suction chamber is formed vacuum, gas is sucked by feeding-passage 11, forms pressure by closing chamber, then arranged through runner by discharge chamber
Out, flow is formed.
In above-mentioned setting, the two sides of rotor 7 are respectively a parallel sine curve and form conjugation, rotor at work
7 when doing radial motion, its section is straight line forever, and this hatching constantly changes with circular motion,
And it reciprocatingly slides with movable pulley 6.The respective outer end of the rotor 7 prevents fluid from the power end of main shaft 4 equipped with sealing mechanism 5
It overflows.Slide valve 6 closes rotor 7 from three side sealing, and divides the cylinder into suction chamber and discharge chamber, and the rotation of rotor 7 forms suction chamber
Vacuum, sucks gas by feeding-passage 11, forms pressure by closing chamber, then be discharged through tapping channel 9 by discharge chamber, is formed
Flow.The adjustable retaining ring 13 is embedded in 2 inner fixed bearing exterior ring cap of wooden dipper shell, and is again sealed off for main shaft 4.Humidification water tank 8 is set
In the top of complete machine, lubricating oil is inputted into 6 slideway of slide valve by two petroleum pipelines, while lubricating each sliding surface.Therefore in work
During work, selected basic material, which enters to be kneaded in cylinder through feeding-passage 11, uniformly to be mixed, and refine solid-state half at
Product are exited with the operating of this rotor 7, then through feeding-passage 11, are entered in dehumidifying cylinder under the control of slide valve 6 through tapping channel 9,
In 7 operation process of rotor, it is dehydrated semi-finished stock, moisture content enters in humidification water tank 8, drains water with followed by the operating of rotor 7
The semi-finished product divided are discharged through tapping channel 9.
Embodiment five:
Wooden dipper shell 2 and middle partition 10 have same trench, make slide valve 6 that can only reciprocatingly slide in the trench；Rotor 7
Respective outer end prevents fluid from overflowing from the power end of main shaft 4 equipped with sealing mechanism 5.
By above-mentioned setting, rotor 7 constantly converts position when moving in a circle, at the hatching of curve and is formed
Continuous to be displaced, after 7 half rotation of rotor, molded line is moved a certain distance along axis direction, and rotor 7 rotates full circle, and molded line is again
Original position is returned to, rotor 7 often rotates a circle, and sliding air valve does primary reciprocating motion, and in rotation, curve constantly converts rotor 7
Linear, such as the helicoid of impeller blade, and linear be enclosed in always of this continually changing curve is slided in air valve, is formed
Sealing surface, continuously rotation forms numerous helicoid to this continually changing curve in sealing surface, drives gas, along
Certain direction continuously moves, and charging and discharge are just formd in shell.
Embodiment six:
Adjustable retaining ring 13 is embedded in 2 inner fixed bearing exterior ring cap of wooden dipper shell, and is again sealed off for main shaft 4；Humidification water tank 8 is located at
Lubricating oil is inputted 6 slideway of slide valve by two petroleum pipelines by the top of complete machine.
In above-mentioned setting, adjustable retaining ring 13 is by being threadedly engaged in wooden dipper shell 2, with continuing on for the device, when
When bearing is worn, main shaft 4 can generate spacious amount, further to bearing clearance to be adjusted by rotating adjustable retaining ring 13, protect
The running accuracy of main shaft 4 is demonstrate,proved.
Comparative experiments
Certain wire & cable factory randomly selects 30 workers and compares experiment to low smoke and low halogen cable material, wherein appointing
It selects 10 workers to test using the preparation method of the embodiment of the present invention 1, then randomly selects 10 workers using of the invention real
The preparation method for applying example 2 is tested, and last remaining 10 workers are tried using the preparation method of the embodiment of the present invention 3
The case where testing, while recording the time of the resistance to burning of low smoke and low halogen cable material, and producing thick smoke.
Such as table Fig. 1, it is found that the embodiment of the present invention 1 is averaged, resistance to burning time is 6h, and when burning is substantially smokeless, 13 comparisons
Resistance to burning time longest in project, dense smoke degree is the smallest when burning, therefore low smoke and low halogen cable may be implemented in the present invention
The improvement of strands is resistant to the intolerable high temperature of conventional material institute, has fire retardant performance outstanding, in other reasons
The scene of fire of initiation can play a protective role to circuit, and that keeps in communication is smooth, provide certain guarantor for the rescue of people
Barrier, and raw material itself is safe and harmless, it is nontoxic, there is good environmental protection effect, preparation process is extremely simple, production
It is at low cost.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of low smoke and low halogen cable material, it is characterised in that: its raw material includes: Corvic by weight
40-90 parts, 10-50 parts of glyceride, 6-10 parts of asbestos, 9-20 parts of aluminum oxide, 5-10 parts of modified aluminium hydroxide fire retardant, nothing
2-9 parts of machine filler, 15-25 parts of plasticizer, 3-12 parts of dispersing agent, 1-6 parts of silane coupling agent and 16-30 parts of titanium dioxide.
2. a kind of low smoke and low halogen cable material according to claim 1, it is characterised in that: its raw material includes such as the following group
Point: 60 parts of Corvic, 30 parts of glyceride, 8 parts of asbestos, 15 parts of aluminum oxide, 8 parts of modified aluminium hydroxide fire retardant,
5 parts of inorganic filler, 20 parts of plasticizer, 8 parts of dispersing agent, 4 parts of silane coupling agent and 23 parts of titanium dioxide.
3. a kind of low smoke and low halogen cable material according to claim 1, it is characterised in that: its raw material includes such as the following group
Point: 40 parts of Corvic, 10 parts of glyceride, 6 parts of asbestos, 9 parts of aluminum oxide, 5 parts of modified aluminium hydroxide fire retardant, nothing
2 parts of machine filler, 15 parts of plasticizer, 3 parts of dispersing agent, 1 part of silane coupling agent and 16 parts of titanium dioxide.
4. a kind of low smoke and low halogen cable material according to claim 1, it is characterised in that: its raw material includes such as the following group
Point: 90 parts of Corvic, 50 parts of glyceride, 10 parts of asbestos, 20 parts of aluminum oxide, modified aluminium hydroxide fire retardant 10
Part, 9 parts of inorganic filler, 25 parts of plasticizer, 12 parts of dispersing agent, 6 parts of silane coupling agent and 30 parts of titanium dioxide.
5. a kind of low smoke and low halogen cable material according to any one of claims 1-4, it is characterised in that: the nothing
Machine filler is the mixture of one or more of titanium dioxide, calcium carbonate, talcum powder and kaolin.
6. a kind of low smoke and low halogen cable material according to any one of claims 1-4, it is characterised in that: the silicon
Alkane coupling agent be one of vinyltriethoxysilane, vinyltrimethoxysilane and vinyl dimethoxysilane or
It is a variety of.
7. it is a kind of for a kind of preparation method of low smoke and low halogen cable material as claimed in any one of claims 1 to 6,
Be characterized in that the following steps are included:
S1, suitable Corvic, asbestos, titanium dioxide and aluminum oxide are first chosen, then by the polychlorostyrene second of selection
Olefine resin, asbestos, titanium dioxide and aluminum oxide, which pour into, carries out mixing in mixer, 60-90 DEG C at a temperature of be kneaded 1-2
Hour；
S2, suitable plasticizer, dispersing agent and silane coupling agent then is added, is kneaded 2-3 hours with 80-100 DEG C of temperature, this
When mixer revolving speed be 400-600 revs/min, carry out high-speed stirred mixing, finally add suitable glyceride, modified hydrogen
Alumina fire retardant and inorganic filler are mixed, and compound is obtained；
S3, close material machine is closed, compound is made to carry out natural cooling, it, will when the compound in mixer is cooled to 90 DEG C
Compound in mixer is poured out；
S4, it compound is poured into dual-screw pelletizer is granulated, the temperature in pelletizer is controlled at 140-160 DEG C, is granulated
After completion, material is put into drying machine and is dried, at 100 DEG C, drying time is that 1-2 is small for the temperature control of drying machine
When, obtain low smoke and low halogen cable material.
8. a kind of strands manufacturing equipment applied in claim 7 characterized by comprising main body is divided into mixed by middle partition
Cylinder and dehumidifying Gang Liangge cylinder chamber are refined, bearing support is installed at main shaft both ends, and wooden dipper shell is mounted on the both ends of main body, and slide valve is by sealing element
It is sealed in main body, wooden dipper shell section is equipped with a sliding slot and reciprocatingly slides for slide valve, and rotor is mounted on main shaft with flat key connection respectively
Two different locations, while it is axial alter column in cross, respectively there are a contour isometric curve in parallel in the two sides of rotor simultaneously
Conjugation is formed at work, and slide valve closes rotor from three side sealing, and cylinder is divided into suction chamber and discharge chamber, and the rotation of rotor makes to inhale
Air cavity forms vacuum, sucks gas by feeding-passage, forms pressure by closing chamber, then be discharged by discharge chamber through runner, shape
At flow.
9. strands manufacturing equipment according to claim 8, which is characterized in that wooden dipper shell and middle partition have identical ditch
Slot makes slide valve that can only reciprocatingly slide in the trench；The respective outer end of rotor prevents fluid from the dynamic of main shaft equipped with sealing mechanism
It overflows at power end.
10. strands manufacturing equipment according to claim 9, which is characterized in that adjustable retaining ring is embedded in wooden dipper shell inner stationary shaft
Exterior ring cap is held, and is again sealed off for main shaft；Humidification water tank is located at the top of complete machine, inputs lubricating oil by two petroleum pipelines and slides
Valve slideway.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111073180A (en) * | 2019-12-30 | 2020-04-28 | 浙江安防职业技术学院 | Preparation method of high-molecular composite flame-retardant material |
| CN112876786A (en) * | 2021-01-21 | 2021-06-01 | 广西嘉意发科技有限公司 | PVC material for cable shell and preparation method thereof |
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| CN103396619A (en) * | 2013-07-15 | 2013-11-20 | 安徽安远塑胶股份有限公司 | Polyvinyl chloride cable material |
| CN105175938A (en) * | 2015-09-09 | 2015-12-23 | 南京中超新材料股份有限公司 | Environment friendly high flame-retardant polyvinyl chloride insulation material for high frequency communication cable and preparation method of environment friendly high flame-retardant polyvinyl chloride insulation material |
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| CN111073180A (en) * | 2019-12-30 | 2020-04-28 | 浙江安防职业技术学院 | Preparation method of high-molecular composite flame-retardant material |
| CN112876786A (en) * | 2021-01-21 | 2021-06-01 | 广西嘉意发科技有限公司 | PVC material for cable shell and preparation method thereof |
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