CN109294045A - A kind of anti-electrostatic fire retardant masterbatch and preparation method thereof - Google Patents
A kind of anti-electrostatic fire retardant masterbatch and preparation method thereof Download PDFInfo
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/08—Copolymers of ethene
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2400/00—Characterised by the use of unspecified polymers
- C08J2400/10—Polymers characterised by the presence of specified groups, e.g. terminal or pendant functional groups
- C08J2400/102—Polymers characterised by the presence of specified groups, e.g. terminal or pendant functional groups containing halogen atoms
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2451/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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- 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
- C08K3/02—Elements
- C08K2003/026—Phosphorus
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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
- C08K2201/001—Conductive additives
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- 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
- C08K3/02—Elements
- C08K3/04—Carbon
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- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/10—Encapsulated ingredients
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Abstract
The present invention relates to anti-electrostatic fire retardant masterbatch manufacture fields, especially a kind of anti-electrostatic fire retardant masterbatch and preparation method thereof, mainly include the component of following mass fraction: LLDPE is 20-50 parts, EVA is 2-10 parts, POE is 1-8 parts, conductive black is 5-12 parts, encapsulated red phosphorus is 1-6 parts, processing aid is 0.1-4 parts, compatilizer is 2-10 parts.Polyethylene wax and low molecule dispersing agent are free of in this formula, change conventional multi batch-type mixing feeding mode, reduces the number that feeds intake, it is excessive to solve additive, the problem of influencing downstream product load performance defect, improves the stability of product quality and reduces overall cost；Shaft and multistage segment design are kneaded by setting twin shaft; the edge of mixing stirring plectrum on mixing section is two seamed edges construction; material is kneaded by mixing section during exercise; extruding granulator molding is sent into after being vented again; it does not need to press to material after being kneaded in mixing section, to reduce the failure by shear power in mixing process to carbon black structure.
Description
Technical field
The present invention relates to anti-electrostatic fire retardant masterbatch manufacture field, especially a kind of anti-electrostatic fire retardant masterbatch and its preparation side
Method.
Background technique
Flame-retardant master batch is also known as fire-retardant master granule, master batch of preventing fires, be in order to reach plastics, rubber product realizes fire protection requirement and produces
Raw a kind of product.The production equipment of production polyethylene anti-electrostatic fire retardant masterbatch is mainly tipping bucket type masticator, single screw rod at present
Unit or parallel double-screw extruder, it is poor between batch easily to occur when processing anti-electrostatic fire retardant masterbatch using tipping bucket type kneading unit
It is different, investment material progress again again after excluding original material is needed because mixed material is kneaded in banburying chamber, in production process
It is kneaded, material state is influenced vulnerable to factors such as charging sequence, melting temperature, loaded volume, rotor speed, mixing times, non-company
The drawbacks of continuous sex work, there are batch unstability；Anti-electrostatic fire retardant masterbatch is processed using parallel double-screw extruder, is needed first
Pre-dispersed processing is carried out to carbon black, carbon black, which is flown upward, causes operating environment poor, while screw combinations need to combine content of carbon black tune
Whole shearing force, and machine barrel and screw rod spacing are small, need to add a large amount of polyethylene wax or oils dispersing agent increases the profit of mixed ingredients
It is moist, influence later period load performance；And when using twin-screw extrusion machining conductive black, to reach good dispersion effect
Fruit, carbon black additive amount will receive limitation again, it is difficult to which more than 40%, and unit time production capacity is lower.Current is this in factory formula
It is middle to use a large amount of polyethylene wax or low molecule auxiliary agent mode and above-mentioned production and processing mode as dispersing agent, cause to give birth to
It is poor, dispersing agent using simultaneously and affecting later period polyvinyl piping materials pressure-bearing property to produce low efficiency, banburying process batch stability
Energy is equal, so that using obtained product quality under existing polyethylene anti-electrostatic fire retardant masterbatch factory formula and method
Stability is poor, overall cost is high in production process.
Summary of the invention
The present invention one of to solve above-mentioned technical problem used by technical solution be: a kind of anti-electrostatic fire retardant masterbatch, it is main
To include the component of following mass fraction: LLDPE is 20-50 parts, EVA is 2-10 parts, POE is 1-8 parts, conductive black 5-12
Part, encapsulated red phosphorus are 1-6 parts, processing aid is 0.1-4 parts, compatilizer is 2-10 parts.
Preferably, the LLDPE is linear low density polyethylene, and the linear low density polyethylene state is powder, institute
The melt flow rate (MFR) stated under state is greater than 10g/10min.
Preferably, the EVA is ethylene-vinyl acetate copolymer, and VA content is equal to 18, and the ethene-vinyl acetate is total
Polymers state is powder, and the melt flow rate (MFR) under the state is greater than 50g/10min.
Preferably, the conductive black is superconductive carbon black.
Preferably, the compatilizer is maleic anhydride grafted polyethylene, and the processing aid is fluoropolymer PPA.
Preferably, a kind of anti-electrostatic fire retardant masterbatch, mainly include the component of following mass fraction: LLDPE is 48 parts, EVA
For 10 parts, POE be 5 parts, conductive black is 10 parts, encapsulated red phosphorus is 6 parts, processing aid is 2 parts, compatilizer is 10 parts.
A kind of preparation method of anti-electrostatic fire retardant masterbatch, specific steps include:
S1: LLDPE and encapsulated red phosphorus is added by above-mentioned quality proportioning and is uniformly mixed in kneading machine；
S2: EVA, POE, conductive black, compatilizer, processing aid are weighed by quality proportioning and is put into kneading machine and interior S1 products therefrom
It is uniformly mixed；
S3: products therefrom in S2 is granulated by extruder.
Kneading machine described in S1 includes a kneading machine main body, is equipped with one and kneading machine main body on the top of kneading machine main body
The feeding warehouse that internal cavity is connected, is equipped with a mixing device in the cavity of kneading machine main body, and the mixing device includes
The two intracorporal mixing revolving parts of chamber that are horizontal and being arranged in parallel in kneading machine main body, are respectively equipped with one in the two sides of kneading machine main body
The servo-controlled motor matched with each mixing revolving part.
The mixing revolving part includes a horizontal rotation shaft, and the horizontal rotation shaft is divided into feed zone, mixing section and discharging
Section, is respectively equipped with feed auger piece on the feed zone of each horizontal rotation shaft, and the rotation direction of two feed auger pieces is arranged on the contrary, each
Mutually matched mixing stirring plectrum is respectively equipped on the mixing section of horizontal rotation shaft, in the kneading machine main body below unloading part
The tapping channel being communicated with the outside equipped with one.
The baffle that intracavity sidewall equipped with one and kneading machine main body on rear side of each feed auger piece is fixedly connected with, the baffle are logical
It crosses turn hole thereon to be actively socketed on the lateral wall of each horizontal rotation shaft, be equipped at intervals on the side wall of each feed auger piece convex
The teeter column risen.
Beneficial effect possessed by the present invention is that polyethylene wax and low molecule dispersing agent are free of in this formula, changes tradition
Multiple batch-type mixing feeding mode, reduction feed intake number, and it is excessive to solve additive, influence downstream product load performance defect
The problem of, it improves the stability of product quality and reduces overall cost；Shaft and multistage segmentation are kneaded by setting twin shaft
It designs, the edge of the mixing stirring plectrum on mixing section is two seamed edges construction, and material is kneaded by mixing section during exercise
It is good, then extruding granulator molding is sent into after being vented, it does not need to press to material after being kneaded in mixing section, to reduce
To the failure by shear power of carbon black structure, effectively promotion carbon black dispersion in mixing process, while polyethylene wax is not added in formula, protected
The hydrostatic strength of later product application is demonstrate,proved, and production technology is continuous, it is easy to operate, effectively increase production efficiency.
Detailed description of the invention
Fig. 1 is the internal sectional structure schematic diagram of middle kneading machine of the invention.
In figure, 1, kneading machine main body；2, cavity；3, feeding warehouse；4, servo-controlled motor；5, horizontal rotation shaft；6, it feeds
Section；7, mixing section；8, unloading part；9, seamed edge；10, feed auger piece；11, it is kneaded stirring plectrum；12, tapping channel；13, it keeps off
Plate；14, teeter column.
Specific embodiment
In order to clarify the technical characteristics of the invention, below by specific embodiment, and its attached drawing is combined, to this hair
It is bright to be described in detail.
Embodiment 1:
A kind of anti-electrostatic fire retardant masterbatch, mainly include the component of following mass fraction: LLDPE is 48 parts, EVA is 10 parts, POE is
5 parts, conductive black be 12 parts, encapsulated red phosphorus is 3 parts, processing aid is 1.5 parts, compatilizer is 10 parts.
The matrix resin that LLDPE is prepared as anti-electrostatic fire retardant masterbatch, it is predominantly that the conductive black in formula, cladding is red
Phosphorus, compatilizer etc. carry out melting mixing and form Multiple components in one and state is blended, and using in linear polyethylene strand
Feature more than side chain keeps the mechanical property of mixture.
EVA in strand due to introducing vinyl acetate monomer, to reduce crystallinity, improves flexibility, resists
Impact, filler compatibility, can promote the compatibility of conductive black and polyvinyl resin.
POE is the thermoplastic being distributed with narrow molecular weight distribution and uniform short-chain branch using metallocene as catalyst
Property elastomer, primarily serves the effect of toughener.
Superconductive carbon black is because of its iodine absorption value height, and the high structure of large specific surface area, fully dispersed formation is led in plastic products
Electric network and make material have anti-static function.
Encapsulated red phosphorus is in product mainly as the effect of fire retardant.
Processing aid mainly reduces the internal friction in blending and modifying, reduces melt viscosity, promotes plasticizing effect, drops simultaneously
Low production energy consumption.
Polyethylene anti-electrostatic fire retardant masterbatch is because by after polyvinyl resin and conductive black, encapsulated red phosphorus melting mixing, because leading
Electric carbon black iodine absorption number is high, and large specific surface area causes mixture fluidity of molten dramatic decrease, to realize resin and inorganic filler
Melting mixing, needs to add polyethylene wax and high equipment torque apparatus is kneaded just is able to achieve for a long time.
Using fluorochemical and Polar polyolefin hydrocarbon resin instead of being utilized in original technique in the technical solution of the application
Polyethylene wax etc. realizes the compatilizer of conductive black, encapsulated red phosphorus and polyvinyl resin as dispersing aid, predominantly containing fluorination
Closing object has extremely low surface energy, can be reduced the internal friction between molecular resin in plastic processes, improves low-flow
The rheological performance of mixture reduces apparent melt viscosity, promotes whole plasticizing effect.It is analysed in fluorine compounds high temperature process simultaneously
Bath surface is arrived out, and is attached to screw rod and barrel surface, is formed one layer of " lubrication " coating, is reduced production energy consumption.High melt
The LLDPE and EVA resin of flow rate good fluidity in process, may be implemented to have conductive black and encapsulated red phosphorus
Effect cladding, reaches the good result of resin infiltration, realizes that the excellent melt mixing of each material component in entire formula, production produce
Product meet index request.
Preferably, the LLDPE is linear low density polyethylene, and the linear low density polyethylene is pulverulence, institute
The melt flow rate (MFR) stated under state is greater than 10g/10min, is advantageously implemented infiltration of the resin to conductive black and encapsulated red phosphorus
And package, and determine the apparent viscosity of melt, under suitable melt flow rate (MFR) range, meltflow ability is higher, molecular weight phase
To lower, processing performance has improvement；The polyolefine material of high melt flow rate (MFR) may act as the effect of dispersing agent, decreases and matches
Dependence to low molecule dispersing agent in side's design, is conducive to the stability for promoting the hydrostatic performance of later product, tensile strength and
Elongation has promotion, and has prevented the precipitation phenomenon in former polyethylene wax formula in process.
Preferably, the EVA is ethylene-vinyl acetate copolymer, and VA content is equal to 18, and the ethene-vinyl acetate is total
Polymers is pulverulence, and the melt flow rate (MFR) under the state is greater than 50g/10min.
Preferably, the conductive black is superconductive carbon black.
Preferably, the compatilizer is maleic anhydride grafted polyethylene, and the processing aid is fluoropolymer PPA.
A kind of preparation method of anti-electrostatic fire retardant masterbatch, specific steps include:
S1: LLDPE and encapsulated red phosphorus is added by above-mentioned quality proportioning and is uniformly mixed in kneading machine；
S2: EVA, POE, conductive black, compatilizer, processing aid are weighed by quality proportioning and is put into kneading machine and interior S1 products therefrom
It is uniformly mixed；
S3: products therefrom in S2 is granulated by extruder.
As shown in fig. 1, kneading machine described in S1 includes a kneading machine main body 1, is equipped on the top of kneading machine main body 1
One feeding warehouse 3 being connected with the cavity 2 inside kneading machine main body 1 is equipped with a mixing in the cavity 2 of kneading machine main body 1 and fills
It sets, the mixing device includes the two intracorporal mixing revolving parts of chamber that are horizontal and being arranged in parallel in kneading machine main body, in kneading machine
The two sides of main body 1 are respectively equipped with a servo-controlled motor 4 matched with each mixing revolving part.By feeding warehouse 3 to kneading machine
After being put into various materials in the cavity 2 of main body 1, equipment and external power supply are connected, operator manually controls two servos of starting
Motor 4 is controlled to turn, so as to drive horizontal rotation shaft to realize to turn, enters the corresponding charging of two horizontal rotation shafts 5
Material at section 6 can be stirred mixing to various materials under effect in screwing for two oppositely oriented feed auger pieces 10, logical
The revolving speed for crossing two servo-controlled motors 4 of control can control the effect of stirring, while the situation excessive if there is the material amount of feeding
Under, feed zone 6 is possible to be blocked, and feeds the case where being obstructed, at this time can be by controlling two servo-controlled motors 4 respectively
Direction of rotation and speed, by back and forth adjust can drive material exit back or by extra material by reverse, rotate forward
The mode back and forth adjusted clears up the material at the place of being obstructed, and continues mixing stirring after the completion of cleaning；It is watched by control
Clothes control direction of rotation and the speed of motor 4 to realize the control to compounding effect and time；Material, which moves forward, to be passed through
Mixing section 7 is kneaded material, and the edge for the mixing stirring plectrum 11 that when mixing uses constructs for two seamed edges 9, is moving
Middle material is kneaded by mixing section, then extruding granulator molding is sent into after being vented, after being kneaded in mixing section 7 not
It needs to press to material, to reduce the failure by shear power in mixing process to carbon black structure, effectively promotes carbon black dispersion.
The mixing revolving part includes a horizontal rotation shaft 5, and the horizontal rotation shaft 5 divides for feed zone 6,7 and of mixing section
Unloading part 8, is respectively equipped with feed auger piece 10 on the feed zone of each horizontal rotation shaft 5, and the rotation direction of two feed auger pieces 10 is set
It sets on the contrary, mutually matched mixing stirring plectrum 11 is respectively equipped on the mixing section 7 of each horizontal rotation shaft 5, under unloading part 8
The kneading machine main body 1 of side is equipped with a tapping channel 12 being communicated with the outside；Pass through feed zone 6, mixing section 7 and unloading part 8
It can quickly realize the mixing of material, be kneaded.
The baffle 13 that intracavity sidewall equipped with one and kneading machine main body 1 on rear side of each feed auger piece 10 is fixedly connected with, it is described
Baffle 13 is actively socketed on the lateral wall of each horizontal rotation shaft 5 by turn hole thereon, in the side wall of each feed auger piece 10
On be equipped at intervals with protrusion teeter column 10, when feed auger piece 10 is stirred material, each teeter column 10 can be played
The effect for assisting stirring, effectively improves the uniformity mixed when stirring, thus melting effect when subsequent mixing can be improved.
Embodiment 2:
A kind of anti-electrostatic fire retardant masterbatch, mainly include the component of following mass fraction: LLDPE is 20 parts, EVA is 2 parts, POE 3
Part, conductive black are 7 parts, encapsulated red phosphorus is 3.5 parts, processing aid is 0.1 part, compatilizer is 2 parts.
Preferably, the LLDPE is linear low density polyethylene, and the linear low density polyethylene state is powder, institute
The melt flow rate (MFR) stated under state is greater than 10g/10min.
Preferably, the EVA is ethylene-vinyl acetate copolymer, and for VA content for 18, the ethene-vinyl acetate is total
Polymers state is powder, and the melt flow rate (MFR) under the state is greater than 50g/10min.
Preferably, the conductive black is superconductive carbon black.
Preferably, the compatilizer is maleic anhydride grafted polyethylene, and the processing aid is fluoropolymer PPA.
The preparation method is the same as that of Example 1.
Embodiment 3:
A kind of anti-electrostatic fire retardant masterbatch, mainly include the component of following mass fraction: LLDPE is 35 parts, EVA is 4 parts, POE is
10 parts, conductive black be 6 parts, encapsulated red phosphorus is 4 parts, processing aid is 2 parts, compatilizer is 5 parts.
Preferably, the LLDPE is linear low density polyethylene, and the linear low density polyethylene state is powder, institute
The melt flow rate (MFR) stated under state is greater than 10g/10min.
Preferably, the EVA is ethylene-vinyl acetate copolymer, and VA content is equal to 18, and the ethene-vinyl acetate is total
Polymers state is powder, and the melt flow rate (MFR) under the state is greater than 50g/10min.
Preferably, the conductive black is superconductive carbon black.
Preferably, the compatilizer is maleic anhydride grafted polyethylene, and the processing aid is fluoropolymer PPA.
The preparation method is the same as that of Example 1.
Embodiment 4:
A kind of anti-electrostatic fire retardant masterbatch, mainly include the component of following mass fraction: LLDPE is 40 parts, EVA is 6 parts, POE 6
Part, conductive black are 9 parts, encapsulated red phosphorus is 6 parts, processing aid is 2.5 parts, compatilizer is 10 parts.
Preferably, the LLDPE is linear low density polyethylene, and the linear low density polyethylene state is powder, institute
The melt flow rate (MFR) stated under state is greater than 10g/10min.
Preferably, the EVA is ethylene-vinyl acetate copolymer, and VA content is equal to 18, and the ethene-vinyl acetate is total
Polymers state is powder, and the melt flow rate (MFR) under the state is greater than 50g/10min.
Preferably, the conductive black is superconductive carbon black.
Preferably, the compatilizer is maleic anhydride grafted polyethylene, and the processing aid is fluoropolymer PPA.
The preparation method is the same as that of Example 1.
Embodiment 5:
A kind of anti-electrostatic fire retardant masterbatch, mainly include the component of following mass fraction: LLDPE is 50 parts, EVA is 10 parts, POE is
8 parts, conductive black be 10 parts, encapsulated red phosphorus is 6 parts, processing aid is 2 parts, compatilizer is 8 parts.
Preferably, the LLDPE is linear low density polyethylene, and the linear low density polyethylene state is powder, institute
The melt flow rate (MFR) stated under state is greater than 10g/10min.
Preferably, the EVA is ethylene-vinyl acetate copolymer, and VA content is equal to 18, and the ethene-vinyl acetate is total
Polymers state is powder, and the melt flow rate (MFR) under the state is greater than 50g/10min.
Preferably, the conductive black is superconductive carbon black.
Preferably, the compatilizer is maleic anhydride grafted polyethylene, and the processing aid is fluoropolymer PPA.
The preparation method is the same as that of Example 1.
Test example:
Shandong company, according to the substance proportion and method in above-described embodiment, by multiple pilot production, what is obtained various matches
Parameters than the product of lower production be compared with the prior art the result is as follows:
1 material property parameter of table
Above-mentioned specific embodiment cannot function as limiting the scope of the invention, and those skilled in the art are come
It says, any alternate modification or transformation made to embodiment of the present invention are fallen within the scope of protection of the present invention.
Place is not described in detail by the present invention, is the well-known technique of those skilled in the art of the present technique.
Claims (10)
1. a kind of anti-electrostatic fire retardant masterbatch, it is characterised in that: mainly include the component of following mass fraction: LLDPE 20-50
Part, EVA be 2-10 parts, POE is 1-8 parts, conductive black is 5-12 parts, encapsulated red phosphorus is 1-6 parts, processing aid is 0.1-4 parts,
Compatilizer is 2-10 parts.
2. a kind of anti-electrostatic fire retardant masterbatch according to claim 1, it is characterised in that: the LLDPE is linear low close
Polyethylene is spent, the linear low density polyethylene is powdery or granular, and the melt flow rate (MFR) under the state is greater than 10g/
10min。
3. a kind of anti-electrostatic fire retardant masterbatch according to claim 1, it is characterised in that: the EVA is ethene-vinyl acetate
Copolymer, VA content are equal to 18, and the ethylene-vinyl acetate copolymer is powdery or granular, the melt flows under the state
Rate is greater than 50g/10min.
4. a kind of anti-electrostatic fire retardant masterbatch according to claim 1, it is characterised in that: the conductive black is to superconduct charcoal
It is black.
5. a kind of anti-electrostatic fire retardant masterbatch according to claim 1 and preparation method thereof, it is characterised in that: the compatilizer
For maleic anhydride grafted polyethylene, the processing aid is fluoropolymer PPA.
6. a kind of anti-electrostatic fire retardant masterbatch according to claim 1, it is characterised in that: mainly including following mass fraction
Component: LLDPE is 48 parts, EVA is 10 parts, POE is 5 parts, conductive black is 10 parts, encapsulated red phosphorus is 6 parts, processing aid 2
Part, compatilizer are 10 parts.
7. a kind of preparation method of anti-electrostatic fire retardant masterbatch, specific steps described in -6 include: according to claim 1
S1: LLDPE and encapsulated red phosphorus is added by above-mentioned quality proportioning and is uniformly mixed in kneading machine；
S2: EVA, POE, conductive black, compatilizer, processing aid are weighed by quality proportioning and is put into kneading machine and interior S1 products therefrom
It is uniformly mixed；
S3: products therefrom in S2 is granulated by extruder.
8. a kind of preparation method of anti-electrostatic fire retardant masterbatch according to claim 7, it is characterised in that: mixed described in S1
Mill include a kneading machine main body, the top of kneading machine main body be equipped with one be connected with the cavity of kneading machine body interior into
Feed bin, is equipped with a mixing device in the cavity of kneading machine main body, and the mixing device includes two levels and is arranged in parallel in mixed
The intracorporal mixing revolving part of the chamber of mill main body is respectively equipped with one in the two sides of kneading machine main body and matches with each mixing revolving part
Servo-controlled motor.
9. a kind of preparation method of anti-electrostatic fire retardant masterbatch according to claim 8, it is characterised in that: the mixing rotation
Part includes a horizontal rotation shaft, the horizontal rotation shaft is divided into feed zone, mixing section and unloading part, each horizontal rotation shaft into
Feed auger piece is respectively equipped in material section, the rotation direction of two feed auger pieces is arranged on the contrary, on the mixing section of each horizontal rotation shaft
It is respectively equipped with mutually matched mixing stirring plectrum, is communicated with the outside in the kneading machine main body below unloading part equipped with one
Tapping channel.
10. a kind of preparation method of anti-electrostatic fire retardant masterbatch according to claim 9, it is characterised in that: in each charging spiral shell
The baffle that intracavity sidewall equipped with one and kneading machine main body on rear side of blade is fixedly connected with, the baffle pass through turn hole movable sleeve thereon
It connects on the lateral wall of each horizontal rotation shaft, the teeter column of protrusion is equipped at intervals on the side wall of each feed auger piece.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810956573.XA CN109294045A (en) | 2018-08-21 | 2018-08-21 | A kind of anti-electrostatic fire retardant masterbatch and preparation method thereof |
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| CN201810956573.XA CN109294045A (en) | 2018-08-21 | 2018-08-21 | A kind of anti-electrostatic fire retardant masterbatch and preparation method thereof |
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| CN201810956573.XA Pending CN109294045A (en) | 2018-08-21 | 2018-08-21 | A kind of anti-electrostatic fire retardant masterbatch and preparation method thereof |
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| CN110822181A (en) * | 2019-12-12 | 2020-02-21 | 山东东宏管业股份有限公司 | Permanent color antistatic flame-retardant polyolefin steel wire composite pipe, and preparation method and mold thereof |
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