CN108659372A - A kind of eco PVC cable compounds and preparation method thereof - Google Patents
A kind of eco PVC cable compounds and preparation method thereof Download PDFInfo
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- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
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Abstract
A kind of eco PVC cable compounds and preparation method thereof, belong to cable material technical field.It is characterized in that, parts by weight group becomes：Corvic：100 parts, heat stabilizer：4 ~ 6 parts, 1,2 diformazan dioctyl phthalate of primary plasticizer hexamethylene：18 ~ 22 parts, three monooctyl ester of extender plasticizer phosphorous acid：13 ~ 17 parts, anti-flaming smoke-inhibiting agent：8 ~ 10 parts, calcine montmorillonite：3 ~ 5 parts, four (methyl β（3,5 di-t-butyl, 4 hydroxy phenyl）And acid esters) pentaerythritol ester：0.05 ~ 0.1 part, dilauryl thiodipropionate：0.05 ~ 0.1 part, lubricant：0.1 ~ 0.2 part.Preparation process is：It will be mixed in high-speed mixer after each material weighing, the material mixed be granulated in double screw extruder.The present invention provides that a kind of amount of flame-retardant agent is few, good flame resistance, unleaded, low cigarette, environmental protection, and thermal stability is good, eco PVC cable compounds of good mechanical performance and preparation method thereof.
Description
Technical field
A kind of eco PVC cable compounds and preparation method thereof, belong to cable material technical field.
Background technology
It is basic resin that polyvinyl chloride cable material, which is with polyvinyl chloride, and it is appropriate to add stabilizer, filler, lubricant etc.
Auxiliary agent is mediated by mixture and squeezes out and be made, mainly for the preparation of electric wire, cable etc..However, electric wire is in the process used
In be easy because short circuit cause fever, burning phenomena such as, seriously threaten the safety of people's property.
With the fast development of global economy and the enhancing of mankind's environmental consciousness, each field to the quality of electric wire and
The requirement of performance is higher and higher, because electric wire, cable aging due to the fire that causes it is also more and more, how to reduce the generation of fire
Rate and occur fire when the death rate, low cigarette, it is fire-retardant, environmentally friendly also become wires and cables industry developing direction.Environmental protection at present
The production of Low-smoke flame retardant cable material is that a large amount of aluminium hydroxide or magnesium hydroxide are added in the substrate mostly to reach flame retardant effect,
However, the addition of a large amount of inorganic material, affects the physical mechanical property and process industrial art performance of CABLE MATERIALS, it is soft at normal temperatures
It is soft can, against weather is poor, oil resistivity, resistance to low temperature are not fine.
A kind of existing environmental protection flame retardant polyvinyl chloride cable material, component matches by weight percent is：Polyvinyl chloride
60% ~ 75%, trioctyl trimellitate (TOTM) 10% ~ 15%, melamine cyanurate 5% ~ 10%, organo montmorillonite 2% ~ 8%, antimony oxide
1% ~ 3%, calcium zinc stabilizer 0.5% ~ 1.5%, antioxidant 0.1% ~ 0.5%, calcium stearate 1% ~ 2%.With good flame resistance, Halogen, nothing
Lead, low cigarette, environmental protection, and thermal stability is good, and good mechanical performance is at low cost, and preparation process is simple, application easy to spread.But
That this method adds Sb system fire retardant, because its with the chlorine atom in polyvinyl chloride strand there are good synergistic effect, add
Add and can reach preferable flame retardant effect on a small quantity, is favored in recent years by industry.But the fire-retardant raw smoke of antimony-chlorine flame-retardant system
Height, and antimony oxide dust has larger harm to respiratory system, cannot meet the ecological requirements to flame retardant products.
Invention content
The technical problem to be solved by the present invention is to：It is few, fire-retardant to overcome the deficiencies of the prior art and provide a kind of amount of flame-retardant agent
Property good, unleaded, low cigarette, environmental protection, and thermal stability is good, the eco PVC cable compounds of good mechanical performance and its preparation
Method.
The technical solution adopted by the present invention to solve the technical problems is：The eco PVC cable compounds, feature
It is, parts by weight group becomes：Corvic：100 parts, heat stabilizer：4 ~ 6 parts, primary plasticizer hexamethylene -1,2 dioctyl phthalate
Dioctyl ester：18 ~ 22 parts, three monooctyl ester of extender plasticizer phosphorous acid：13 ~ 17 parts, anti-flaming smoke-inhibiting agent：8 ~ 10 parts, calcine montmorillonite：3~
5 parts, four (methyl-β-（3,5- di-tert-butyl-hydroxy phenyls）And acid esters) pentaerythritol ester：0.05 ~ 0.1 part, thio dipropyl
Sour dilauryl：0.05 ~ 0.1 part, lubricant：0.1 ~ 0.2 part；The Corvic be average degree of polymerization be 1000 ~
1300 polyvinyl chloride resin.
Preferably, parts by weight group becomes：Corvic：100 parts, heat stabilizer：4.5 ~ 5.0 parts, primary plasticizer ring
Hexane -1,2 diformazan dioctyl phthalate：19 ~ 20 parts, three monooctyl ester of extender plasticizer phosphorous acid：14 ~ 16 parts, anti-flaming smoke-inhibiting agent：9~9.5
Part, calcine montmorillonite：3.5 ~ 4 parts, four (methyl-β-（3,5- di-tert-butyl-hydroxy phenyls）And acid esters) pentaerythritol ester：
0.07 ~ 0.08 part, dilauryl thiodipropionate：0.07 ~ 0.08 part, lubricant：0.13 ~ 0.15 part.
Preferably, the preparation method of the anti-flaming smoke-inhibiting agent is as follows：
1）By the molar ratio 1.5 ~ 3.0 of melamine and cyanuric acid：1 weighs material, is added in closed reactor, adds water,
It is stirred to react 40 ~ 60 minutes at 105 DEG C ~ 110 DEG C of temperature；
2）Open reaction kettle, HCl be added, then zinc chloride and hydroxyl stannate sodium are added in reaction kettle, the cyanuric acid with
The molar ratio of HCl, zinc chloride and hydroxyl stannate sodium are 1：1~4：0.5~2：1 ~ 4, it stirs evenly, under conditions of 90 DEG C ~ 100 DEG C
Reaction 2 ~ 3 hours, cooling, washing filters, and is dried to obtain anti-flaming smoke-inhibiting agent.
Wherein step 1）Middle melamine is excessive, and product is melamine cyanurate.
Wherein step 2）Middle hydrochloric acid and step 1）Excessive melamine reaction, it is then anti-with hydroxyl stannate sodium and zinc chloride
It answers, specific reaction equation is as follows：
It is main plasticizer to prepare using hexamethylene -1,2 diformazan dioctyl phthalate, and the anti-flaming smoke-inhibiting agent main component is melamine
Cyanurate and melamine hydroxyl stannate zinc salt, wherein melamine cyanurate can be used as main flame retardant, melamine
Hydroxyl stannate zinc salt makees smoke suppressant and auxiliary flame retardant, and calcinated argil makees auxiliary flame retardant.The nitrogen such as melamine cyanurate hinder
Combustion agent has many advantages, such as stable, cheap, the suitable processing of Halogen, low cigarette, photo-thermal, with poly- life object good compatibility, is sent out when heated
Raw decomposition reaction has the effects that heat absorption, cooling and dilution, plays the role of that polymer is protected to prevent burning；Melamine hydroxyl
The stanniferous fire retardant of base stannic acid zinc salt has the advantages that thermal stability is good, nontoxic, efficient, non-stimulated to human body, heat-resist, PVC
Aromatic hydrocarbon is generated by thermal decomposition easily cyclisation, these substances are also melamine hydroxyl stannate an important factor for generating smoke generation
The Zn of zinc salt2+And its product ZnCl that absorption HCl is generated2, above-mentioned steps 2）Zn2+Trans- polyene structure is generated in PVC
The trans- polyene for playing catalytic action in the process, and obtaining cannot generate aromatic hydrocarbon by cyclisation, this has just reached prevention
The purpose of PVC main chains degradation；ZnCl2High-polymer molecular can be helped to carry out cross-linking reaction and carbonization reaction, and given birth on its surface
At one layer of very fine and close charring layer, external oxygen and heat are completely cut off, it is suppressed that the progress of combustion reaction reduces simultaneously
Flue gas discharges；Calcining montmorillonite belongs to silicon-series five-retardant, and the fire retardant mechanism of silicon-series five-retardant, which is them, to be enhanced in material surface
Charcoal protective layer, and free radical capture reactive intermediate is generated, to reach flame retardant effect, mechanism is mainly shown as isolation film machine
Reason, and this based flame retardant is a kind of charcoal becoming smoke suppressant, compared with other fire retardants, shows excellent anti-flammability, processing
Property and it is environmentally friendly the advantages that.Good flame resistance, Halogen, nothing are prepared by the efficient combination of above-mentioned fire retardant, anti-flaming smoke-inhibiting agent
Lead, low cigarette, environmental protection, and thermal stability is good, good mechanical performance flame-proof smoke-restraining polyvinyl chloride cable material.
Preferably, the molar ratio of the cyanuric acid and HCl, zinc chloride and hydroxyl stannate sodium are 1：2.8~3.4：0.9~
1.3：2.4~3.1.
Preferably, the Corvic is the polyvinyl chloride resin that average degree of polymerization is 1300.
Preferably, the heat stabilizer is calcium zinc heat stabilizer.The preferably German bear board calcium zinc heat of calcium zinc heat stabilizer is steady
Determine agent 9700.
Three monooctyl ester of phosphorous acid of selection is flaming retarding cold resistant plasticizer.
Preferably, the lubricant is stearic acid.
Four (methyl-β-（3,5- di-tert-butyl-hydroxy phenyls）And acid esters) pentaerythritol ester preferentially selects antioxidant
1010, dilauryl thiodipropionate preferentially selects anti-oxidant DLTP.
A kind of preparation method of above-mentioned eco PVC cable compounds, which is characterized in that preparation process is：
1）It will be mixed 10 ~ 12 minutes in the high-speed mixer that rotating speed is 1000 ~ 1400 turns after each material weighing, wait for liquid phase component
Absorbed completely by polyvinyl chloride resin, mixing material soap-free emulsion polymeization and it is evenly dispersed after be put into slow-speed mixer, start stirring cooling, material temperature drop
Blowing after to 55 DEG C ~ 62 DEG C；
2）The material mixed is granulated in double screw extruder, flame-proof smoke-restraining polyvinyl chloride cable material is made.
Preferably, step 1）The rotating speed of the high-speed mixer is 1300, is mixed 11 minutes.
Hexamethylene -1,2 diformazan dioctyl phthalate（DECH）For environment-friendly plasticizer.
The use of environment-friendly plasticizer cyclohexane alkane -1,2 diformazan dioctyl phthalate is main plasticizer, and has with extender plasticizer TNPP
Good synergistic effect, anti-flaming smoke-inhibiting agent and the calcining montmorillonite of preparation play very good synergistic effect, CABLE MATERIALS obtained
With preferable flame-retardant smoke inhibition effect；CABLE MATERIALS few, good flame resistance, unleaded, low cigarette, environmental protection, Er Qiere with amount of flame-retardant agent
The advantages that stability is good, good mechanical performance.
Compared with prior art, have possessed by a kind of eco PVC cable compounds of the invention and preparation method thereof
Beneficial effect is：The present invention uses environment-friendly plasticizer cyclohexane alkane -1,2 diformazan dioctyl phthalate for main plasticizer, and and extender plasticizer
TNPP has good synergistic effect；Anti-flaming smoke-inhibiting agent main component is melamine cyanurate and melamine hydroxyl stannate
Zinc salt, and both anti-flaming smoke-inhibiting agents are made by reacting；Wherein melamine cyanurate can be used as main flame retardant, three
Poly cyanamid hydroxyl stannate zinc salt makees smoke suppressant and auxiliary flame retardant, and assisting flame-resistant smoke suppressant is made in calcining montmorillonite；What is prepared is fire-retardant
Smoke suppressant plays very good synergistic effect with calcining montmorillonite, and CABLE MATERIALS obtained has preferable flame-retardant smoke inhibition effect.
Specific implementation mode
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and should not be taken as limiting the scope of the invention.Wherein embodiment 1 is best
Embodiment.
Each Example formulations are shown in Table 1.
1 Example formulations of table
。
It is 1300 that Corvic, which is the degree of polymerization, in embodiment 1 ~ 3；Corvic is that the degree of polymerization is in embodiment 4
1200；It is 1100 that Corvic, which is the degree of polymerization, in embodiment 5；It is 1000 that Corvic, which is the degree of polymerization, in embodiment 6；
The preparation method of anti-flaming smoke-inhibiting agent is as follows in embodiment 1 ~ 3：
1）1 mole of 2.0 moles of melamine and cyanuric acid are taken, is added in closed reactor, adds 1000 ml water, temperature 110
It is stirred to react at DEG C 50 minutes；
2）Reaction kettle is opened, the hydrochloric acid solution 2800ml of 1.0 mol/Ls is added, then by 1.3 moles of zinc chloride and 2.4 moles
Hydroxyl stannate sodium be dissolved in 2000 ml water, be added in reaction kettle, stir evenly, reacted 2 hours under conditions of 95 DEG C,
It is cooling, it washes, filters, be dried to obtain anti-flaming smoke-inhibiting agent.
The preparation method of anti-flaming smoke-inhibiting agent is as follows in embodiment 4：
1）1 mole of 2.5 moles of melamine and cyanuric acid are taken, is added in closed reactor, adds 1000 ml water, temperature 108
It is stirred to react at DEG C 55 minutes；
2）Reaction kettle is opened, the hydrochloric acid solution 3400ml of 1.0 mol/Ls is added, then by 0.9 mole of zinc chloride and 3.1 moles
Hydroxyl stannate sodium be dissolved in 2000 ml water, be added in reaction kettle, stir evenly, reacted 2 hours under conditions of 95 DEG C,
It is cooling, it washes, filters, be dried to obtain anti-flaming smoke-inhibiting agent.
The preparation method of anti-flaming smoke-inhibiting agent is as follows in embodiment 5：
1）1 mole of 3.0 moles of melamine and cyanuric acid are taken, is added in closed reactor, adds 1000 ml water, temperature 110
It is stirred to react at DEG C 40 minutes；
2）Reaction kettle is opened, the hydrochloric acid solution 2000ml of 1.0 mol/Ls is added, then by 1.0 moles of zinc chloride and 2.0 moles
Hydroxyl stannate sodium be dissolved in 2000 ml water, be added in reaction kettle, stir evenly, reacted 2 hours under conditions of 95 DEG C,
It is cooling, it washes, filters, be dried to obtain anti-flaming smoke-inhibiting agent.
The preparation method of anti-flaming smoke-inhibiting agent is as follows in embodiment 6：
1）1 mole of 1.5 moles of melamine and cyanuric acid are taken, is added in closed reactor, adds 1000 ml water, temperature 105
It is stirred to react at DEG C 60 minutes；
2）Reaction kettle is opened, the hydrochloric acid solution 2000ml of 1.0 mol/Ls is added, then by 1.0 moles of zinc chloride and 2.0 moles
Hydroxyl stannate sodium be dissolved in 2000 ml water, be added in reaction kettle, stir evenly, reacted 2 hours under conditions of 95 DEG C,
It is cooling, it washes, filters, be dried to obtain anti-flaming smoke-inhibiting agent.
2）Reaction kettle is opened, HCl is added, then zinc chloride and hydroxyl stannate sodium are added in reaction kettle, the cyanuric acid
Molar ratio with HCl, zinc chloride and hydroxyl stannate sodium is 1：1~4：0.5~2：1 ~ 4, it stirs evenly, in 90 DEG C ~ 100 DEG C of condition
Lower reaction 2 ~ 3 hours, cooling, washing filters, and is dried to obtain anti-flaming smoke-inhibiting agent.
The formula of comparative example 1 ~ 5 is as follows：
Comparative example 1：On the basis of embodiment 1 will auxiliary TNPP replace with cumenyl diphenyl phosphoester (IPP), other with
Embodiment 5 is identical.
Comparative example 2：Anti-flaming smoke-inhibiting agent is replaced on the basis of embodiment 1, other are same as Example 1；
The preparation method of anti-flaming smoke-inhibiting agent is as follows in comparative example 2：
1) 1 mole of 2.0 moles of melamine and cyanuric acid are taken, is added in closed reactor, adds 1000 ml water, temperature 110
It is stirred to react at DEG C 50 minutes；
(2) reaction kettle is opened, then 2.0 moles of zinc stannate is dissolved in 2000 ml water, is added in reaction kettle, stirs evenly,
It is cooling, it washes, filters, be dried to obtain anti-flaming smoke-inhibiting agent.
Comparative example 3：Anti-flaming smoke-inhibiting agent is replaced with into melamine cyanurate and zinc stannate on the basis of embodiment 1,
Molar ratio is 1:2.
Comparative example 4：Anti-flaming smoke-inhibiting agent is replaced with into melamine cyanurate and hydroxyl stannate on the basis of embodiment 1
Zinc, molar ratio 1:2.
Comparative example 5：Anti-flaming smoke-inhibiting agent is replaced with into melamine cyanurate and melamine on the basis of embodiment 1
Hydroxy tin acid salt, molar ratio 1:1.
The preparation method of melamine hydroxy tin acid salt is as follows：
1 mole of melamine is added in reaction kettle, the hydrochloric acid solution 2000ml of 1.0 mol/Ls is added, then by 1.0 moles of chlorination
Zinc and 2.0 moles of hydroxyl stannate sodium are dissolved in 2000 ml water, are added in reaction kettle, are stirred evenly, under conditions of 95 DEG C
Reaction 2 hours, it is cooling, it washes, filters, be dried to obtain melamine hydroxy tin acid salt.
Comparative example 6：Anti-flaming smoke-inhibiting agent is risen to 15 parts on the basis of embodiment 1, other are same as Example 1.
Embodiment and comparative example is weighed by formula, first by polyvinyl chloride resin, calcium zinc stabilizer, antioxidant 1010/DMTP, hard
Resin acid is added in warmed-up high-speed mixer, starts stirring（Rotating speed is 1000 ~ 1400 turns）, will plasticising when material temperature is up to 80 DEG C
Agent DECH/TNPP is added in high-speed mixer and mixes 8 ~ 10 minutes, and fire-retardant suppression is added after plasticizer is fully absorbed by polyvinyl chloride resin
Fumicants and calcining montmorillonite, continue to be stirred 2 ~ 4 minutes blowings, cooling.By the material mixed in double screw extruder
It is granulated, it is as shown in table 2 to be granulated parameter setting.By mixing material using heating double roller be plasticized hacking, using press be pressed into 200mm ×
Two kinds of prints of 200mm × 4mm, 200mm × 200mm × 2mm.Mould pressing process：180 DEG C of temperature, plasticizing 4min, plasticizing process：
180 DEG C of temperature, 10 ~ 15MPa of pressure, pressurize 3min.80mm × 10mm × 4mm battens are made using die punching machine for detecting oxygen to refer to
Number is made 2mm 5A type tensile bars and is used for tension test；Smoke density experiment is carried out using the pellet of double-screw extruding pelletizing.
2 comminutor parameter setting of table
。
Above example, the performance test of comparative example are as follows：
3 embodiment of table, the performance of comparative example
。
It can be seen that by embodiment and comparative example data：1 ~ 6 CABLE MATERIALS of embodiment all has good mechanical property and resistance
Smoke suppressing is fired, and smoke density, far below generally acknowledged low cigarette value 300, wherein CABLE MATERIALS performance made from embodiment 1 is best.With reality
Example 1 to be applied to compare, the mechanical property of CABLE MATERIALS and flame retarding and smoke suppressing properties made from comparative example 1 are relatively low, and smoke density is more than 300,
Combustion test HCl burst sizes are more than 100mg/g, do not reach preferable smoke suppressing effect, illustrate compared with TNPP, IPP and main increasing
The mutual synergistic effect for moulding agent and anti-flaming smoke-inhibiting agent is poor；1 material of mechanical property embodiment of CABLE MATERIALS made from comparative example 2,3,4
Material is suitable, but flame retarding and smoke suppressing properties are low；In terms of the performance of comparative example 1, melamine hydroxyl sodium salt and melamine hydroxyl stannate
It is poor with the cooperative flame retardant smoke suppressing effect of melamine urate, calcining montmorillonite that zinc salt is compared, and oxygen index (OI) is obviously low, and smoke density
More than 300, combustion test HCl burst sizes are more than 100mg/g, do not reach preferable smoke suppressing effect；From the performance of comparative example 6
It sees, more anti-flaming smoke-inhibiting agent improves less the flame-retardant smoke inhibition effect of CABLE MATERIALS, but can reduce the mechanical property of CABLE MATERIALS.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But it is every without departing from technical solution of the present invention content, according to the technical essence of the invention to above example institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection domain of technical solution of the present invention.
Claims (9)
1. a kind of eco PVC cable compounds, which is characterized in that parts by weight group becomes：Corvic：100 parts, heat
Stabilizer：4 ~ 6 parts, primary plasticizer hexamethylene -1,2 diformazan dioctyl phthalate：18 ~ 22 parts, three monooctyl ester of extender plasticizer phosphorous acid：13
~ 17 parts, anti-flaming smoke-inhibiting agent：8 ~ 10 parts, calcine montmorillonite：3 ~ 5 parts, four (methyl-β-（3,5- di-tert-butyl-hydroxy phenyls）
And acid esters) pentaerythritol ester：0.05 ~ 0.1 part, dilauryl thiodipropionate：0.05 ~ 0.1 part, lubricant：0.1 ~ 0.2 part；
The Corvic is the polyvinyl chloride resin that average degree of polymerization is 1000 ~ 1300.
2. a kind of eco PVC cable compounds according to claim 1, it is characterised in that：Parts by weight group becomes：It is poly-
Vinyl chloride resin：100 parts, heat stabilizer：4.5 ~ 5.0 parts, primary plasticizer hexamethylene -1,2 diformazan dioctyl phthalate：It is 19 ~ 20 parts, auxiliary
Three monooctyl ester of secondary plasticizer(-iser) phosphorous acid：14 ~ 16 parts, anti-flaming smoke-inhibiting agent：9 ~ 9.5 parts, calcine montmorillonite：3.5 ~ 4 parts, four (methyl-β-
（3,5- di-tert-butyl-hydroxy phenyls）And acid esters) pentaerythritol ester：0.07 ~ 0.08 part, dilauryl thiodipropionate：
0.07 ~ 0.08 part, lubricant：0.13 ~ 0.15 part.
3. a kind of eco PVC cable compounds according to claim 1 or 2, it is characterised in that：The flame-retardant smoke inhibition
The preparation method of agent is as follows：
1）By the molar ratio 1.5 ~ 3.0 of melamine and cyanuric acid：1 weighs material, is added in closed reactor, adds water,
It is stirred to react 40 ~ 60 minutes at 105 DEG C ~ 110 DEG C of temperature；
2）Open reaction kettle, HCl be added, then zinc chloride and hydroxyl stannate sodium are added in reaction kettle, the cyanuric acid with
The molar ratio of HCl, zinc chloride and hydroxyl stannate sodium are 1：1~4：0.5~2：1 ~ 4, it stirs evenly, under conditions of 90 DEG C ~ 100 DEG C
Reaction 2 ~ 3 hours, cooling, washing filters, and is dried to obtain anti-flaming smoke-inhibiting agent.
4. a kind of eco PVC cable compounds according to claim 3, it is characterised in that：The cyanuric acid with
The molar ratio of HCl, zinc chloride and hydroxyl stannate sodium are 1：2.8~3.4：0.9~1.3：2.4~3.1.
5. a kind of eco PVC cable compounds according to claim 1 or 2, it is characterised in that：The polychlorostyrene second
Olefine resin is the polyvinyl chloride resin that average degree of polymerization is 1300.
6. a kind of eco PVC cable compounds according to claim 1 or 2, it is characterised in that：The thermostabilization
Agent is calcium zinc heat stabilizer.
7. a kind of eco PVC cable compounds according to claim 1 or 2, it is characterised in that：The lubricant
For stearic acid.
8. a kind of preparation method of claim 1 ~ 7 any one of them eco PVC cable compounds, which is characterized in that system
It is for step：
1）It will be mixed 10 ~ 12 minutes in the high-speed mixer that rotating speed is 1000 ~ 1400 turns after each material weighing, wait for liquid phase component
Absorbed completely by polyvinyl chloride resin, mixing material soap-free emulsion polymeization and it is evenly dispersed after be put into slow-speed mixer, start stirring cooling, material temperature is low
Blowing after to 55 DEG C ~ 62 DEG C；
2）The material mixed is granulated in double screw extruder, flame-proof smoke-restraining polyvinyl chloride cable material is made.
9. a kind of preparation method of eco PVC cable compounds according to claim 8, it is characterised in that：Step 1）
The rotating speed of the high-speed mixer is 1300, is mixed 11 minutes.
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| CN111019269A (en) * | 2019-12-28 | 2020-04-17 | 江苏达胜高聚物股份有限公司 | PVC cable material and preparation method thereof |
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