CN109486133A - A kind of PBT direct injection molding efficient enhanced flame-retarded heat-conducting shading multifunctional mother granules and preparation method thereof - Google Patents
A kind of PBT direct injection molding efficient enhanced flame-retarded heat-conducting shading multifunctional mother granules and preparation method thereof Download PDFInfo
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Abstract
The invention belongs to modifying plastics and processing technique field more particularly to a kind of efficient enhanced flame-retarded heat-conducting shading multifunctional mother granules and preparation method thereof that may be directly applied to the injection moulding processing of PBT product；The multifunctional mother granules are composed of two kinds of master batches of A and B, and the mass percentage composition of A master batch is as follows: 50.0~60.0wt.% of glass fibre, 35.0~40.0wt.% of Gao Liudong PBT resin, acrylic acid diglycidyl ether grafted elastomeric are from 5.0~10.0wt.% of aggressiveness, 0.1~0.3wt.% of antioxidant；Functional agglomerate prepared by the present invention is compared with conventional plastic functional agglomerate, it avoids in system process, because modified performance mutually damages caused by mutually shearing abrasion between glass fibre and fire retardant and inorganic functional modified additive particle, it solves above-mentioned two unmatched problem of modified system processing temperature simultaneously, significantly enhances the two modified performance；The master batch has easily dispersion easy processing feature, rear injection molding can directly be simply mixed according to the ratio with PBT resin, and obtain excellent modified effect.
Description
Technical field
The invention belongs to modifying plastics and processing technique field more particularly to one kind may be directly applied to the injection of PBT product
Efficient enhanced flame-retarded heat-conducting shading multifunctional mother granules of processing and forming and preparation method thereof.
Background technique
Implementing melt blending using double screw extruder is the conventional method for implementing modifying plastics, is squeezed using parallel dual-screw
Thermoplastic can be carried out serialization melt blending extrusion with all kinds of modified additives and made by the efficiently excellent mixing efficiency of machine out
Grain, prepared modified special material will be re-used for injecting or extrusion machine-shaping goes out various products.This technology path is not only
Effectively improve the physical mechanical properties such as intensity, toughness, rigidity, creep resistance, the warp resistance of plastic products, but also can
Assign the special physical chemistry effects such as fire-retardant plastic products, conductive, thermally conductive, magnetic conduction, antistatic, antibacterial.Although the technology road
Position of mainstream is occupied in current modifying plastics manufacture field, however in the technology implementation process, all substrates resin with change
Property additive all have to pass through twin-screw extrusion and injection moulding melt-processed thermal history twice, polymer molecular chain and its correlation
Modified additive will appear different degrees of degradation, and the Long Service Life for causing plastic products final shortens.This technology road
Line also increases process-cycle and the energy consumption of modified plastics, runs counter to the basic concept of the current sustainable industrial development of green.This
Outside, for the modified additive of different shape and different materials matter there may be the greatest differences of process unit and processing technology,
Such as high temperature high shear effect can be played using twin-screw extrusion machining, the modified performances such as activeness and quietness are performed into maximum limit
Degree；And utilize the low temperature of mixer and mediate effect for a long time, can will not heatproof auxiliary agent, low melting point auxiliary agent, low bulk density it is difficult
The various additives such as feeding powder, hygroscopic auxiliary agent, liquid and colloid auxiliary agent, whisker are sufficiently mixed and are uniformly dispersed, however adopt
It then cannot achieve such processing effect with double screw extruder melting extrusion blending.
It is in the development process of current plastics modification technology field that modified plastics is prepared by the way of plastic functional master batch
An important measures.Passed through using the functional agglomerate well prepared in advance containing high concentration modified additive and plastic raw materials double
Screw extruder or mixer implement melt blending and extruding pelletization, can not only more effectively improve point of additive in the base
It dissipates property and obtains superior modified effect, additionally it is possible to which the dust pollution for reducing processing workshop is to realize that modified plastics green adds
One of important channel of work.With the rapid development of the functionalized design and technology of preparing of plastic master batch, the function of plastic master batch
It is stronger and stronger, kind is more and more abundant, application field is also constantly expanded, and the master batch applications of modifying plastics will become not
Carry out an indispensable Key Common Technologies in modified plastics cleanly production field.
Currently, the requirement to its performance carrys out higher and higher, many application fields with the continuous expansion in plastic applications field
Plastic products are needed to have multi-functionals such as high intensity, high tenacity, high temperature resistant, fire-retardant, thermally conductive, conductive and excellent comprehensive
Can, the modified additive and auxiliary agent that add various material and form are required to the preparation processing of each modified materials, this
Great challenge is proposed to conventional plastic modification technology.Although the development of plastic functional master-batch techniques provides for this challenge
Technical support, but many technical problems are still had in the actual operation process.Wherein main technical problem includes following three
Point: 1. the modified additive and auxiliary agent of unlike material and form could need to be sent out to the maximum extent using different process units and technique
Wave its respective modified effect；2. the modified additive and auxiliary agent and matrix resin of unlike material and form are in same process unit
On (double screw extruder or mixer) implement melt blending can because its mutually shear wear caused by modified performance mutually damage；3. different
The processing temperature otherness of material modified additive and auxiliary agent and matrix resin melt blending is big, if filled simultaneously in identical processing
Standby middle implementation blending can generate serious temperature mismatch problem, and modified effect is caused to be deteriorated.Such as it is enhanced it is fire-retardant, lead
Heat and shading multifunctional plastic System Modification when enhancing glass fibre, organic fire-retardant, inorganic fire-retarded synergist, inorganic are led
When hot and shading powder is simultaneously and matrix resin carries out melt blending in double screw extruder or mixer, fiber and inorganic grain
Fiber Aspect Ratio declines to a great extent caused by between son because of mutual abrasion, and fiber-reinforcing effect is caused to be deteriorated；Fiber and organic resistance
Combustion agent also can cause fire retardant to decompose because of internal frictional heat generation, seriously affect flame retardant effect.In addition, fiberglass reinforced plastics is modified
The processing temperature of system and flame-retardant modified plastics system there are apparent difference, usually enhance the processing temperature of modified system than
The processing temperature of flame-retardant system is 40~70 DEG C high, if by these two types of modified systems under same process unit same process conditions
Implement melt blending, modification effect of one of system will be damaged.Modified performance is mutual between above-mentioned different additive system
Damage problem, it is especially prominent in the high performance of plastics and multifunction modification technology implementation process at present.
For plastics high performance and multifunction modified synchronous implementation process the problem of, invention
The thinking of double master batches is combined using function to implement the enhancing and multi-functional modified developing thought of plastics.Change for plastics
Property additive material the characteristics of, will be blended processing in there may be the additives that modified performance mutually damages to be prepared into A and two kinds of B respectively
Master batch, and the structure of the modified additive according to contained by both master batches, material and physical property feature, separately design out respective height
Dispersed system.Then two kinds of functional agglomerate synchronous applications are injection moulded in plastic products and are processed, can avoid modeling in this way
In material enhancing and functional modification process the modified additive efficiency that generates mutually damage, processing temperature mismatch problem, simultaneously
The maximum modification efficiency of unlike material modified additive and auxiliary agent is played, also can avoid traditional function master batch and matrix resin again
Extruding pelletization processing to effectively improve the effect of modifying plastics, reduce the production of production and processing period, and has saved production energy
Source consumption.This thinking will provide important approach to realize that energy-efficient green plastic is processed.
PBT is the fourth-largest engineering plastics of Present Global usage amount, by carrying out high performance and functional modification to PBT,
Its application field can greatly be expanded.As a kind of important PBT modified material, enhance flame retardant type PBT compound machinery, automobile,
The fields such as track efficiency, electronic apparatus are widely applied.Enhanced flame-retarded heat-conducting shading modified PBT PP Pipe Compound be it is a kind of very
Important multi-functional PBT modified special material is widely used in industry and civil electric appliance shell, electronic circuit supporting element and patches
The manufacture of part and LED lamp cover and internal product.It, will but in the processing preparation process of such multi-functional PBT modified special material
Inorganic reinforcing fiber and fire retardant, thermal conducting agent, opacifier powder are added to progress melt blending extrusion in PBT resin simultaneously and add
Work just will appear typical additive agent modified efficiency and mutually damage phenomenon.
Summary of the invention
To solve modified effect present in the existing thermally conductive shading modified PBT PP Pipe Compound preparation process of glass fiber reinforced flame retardant
Problem can be mutually damaged, the present invention provides a kind of fire-retardant function of efficiently enhancing that may be directly applied to the injection moulding processing of PBT plastic product
Energy master batch and preparation method thereof.The functional agglomerate is composed of two kinds of functional agglomerates of A and B.Wherein A master batch is mainly by glass fibers
Dimension, the PBT resin of high fluidity and acrylic acid diglycidyl ether grafted elastomeric are formed from aggressiveness, pass through twin-screw melting extrusion
Processing is blended and is prepared into enhancing master batch；B master batch is mainly by bromo- antimony compound flame retardant, thermal conducting agent, opacifier and low viscosity fat
The ultra-dispersed property vector resin composition of race's copolyesters, is prepared as flame-retarded heat-conducting shade function master batch by mixer.With by two kinds
The method that master batch is processed respectively can use to obtain following technical advantage: 1. avoiding glass fibre and generation is directly blended with bromide fire retardant
Internal frictional heat generation leads to the decomposition of halogenated flame retardant；2. avoiding glass fibre and inorganic fire-retarded synergist (such as antimony oxide
Or zinc borate), between thermal conducting agent and opacifier because caused by mutual shearing abrasion Fiber Aspect Ratio decline to a great extent；3. solving glass
Glass fiber reinforcement PBT and bromo- antimony compositional flame-retardant PBT, thermally conductive modified PBT, a variety of modified system melt blendings of shading modified PBT add
The unmatched problem of work temperature；4. using acrylic acid diglycidyl ether grafted elastomeric from aggressiveness as A master batch carrier component,
Reactive terminal group can have maximum touch opportunity with the end group of PBT resin in the environment of non-antiflaming powder interferes, to greatest extent
Play its toughening effect.5. not only being kept away from aggressiveness as A master batch carrier component using acrylic acid diglycidyl ether grafted elastomeric
Exempt from general PE class carrier and PBT resin poor compatibility, composite material are easy the defect of peeling, moreover it is possible to improve organic nothing in formula
Interface adhesion between machine each component, while being also improved composite melt mobility, improve product surface finish and
Non-deformability.In addition, the physical property characteristic of the modified additive loaded for two kinds of master batches of A and B all in accordance with it, implements rush
Into the formula system design of its lubrication and high efficiency dispersion.Therefore, can according to performance requirement directly by A and B master batch according to a certain ratio
Rear injection molding is simply mixed with PBT resin, can also increase the injection molding together of other resins and/or master batch: including but not office
Be limited to: PET resin, Masterbatch, plasticizing mother particle, nucleation master batch, chain extension master batch, lubrication master batch, antistatic master granule, is prevented at PC resin
Aging master batch, laser carving master batch, silicone master batch, antibacterial matrices.Due to it is used in injection molding machine be that single screw rod melt promotes mode, it is right
Glass fibre, thermal conducting agent, the shear action of opacifier and fire retardant are very faint, substantially will not modification effect to the two cause
Damage.Therefore, this method not only effectively prevents glass fibre and thermal conducting agent, opacifier and fire retardant because again by double spiral shells
Modified performance caused by the processing of bar blending extrusion mutually damages, and greatly improves the flame-retardant modified effect of enhancing to PBT, simultaneously also
Make invention master batch to have a great design flexible, can be required to carry out more resins, the joint injection molding of more master batches according to client's difference,
Quickly, easily achieve the goal requirement, to practice modifying plastics formula and processing technology optimized design of the 1+1 greater than 2
Theory.
To achieve the above object, The technical solution adopted by the invention is as follows:
A kind of efficient enhanced flame-retarded heat-conducting shading multifunctional mother granules of PBT direct injection molding, the functional agglomerate is by A and B
Two kinds of master batches are composed, and the mass percentage composition of the A master batch is as follows: glass fibre 50.0~60.0 wt.%, Gao Liudong
35.0~40.0 wt.% of PBT resin, acrylic acid diglycidyl ether grafted elastomeric are from 5.0~10.0wt.% of aggressiveness, antioxidant
The mass percentage composition of 0.1~0.3 wt.%, the B master batch are as follows: 45.0~55.0 wt.% of bromide fire retardant, inorganic resistance
10.0~20.0 wt.% of synergist, 10.0~20.0 wt.% of thermal conducting agent, 2.0~5.0 wt.% of opacifier, acrylic acid two is fired to contract
Water glycerin ether grafted elastomeric is from 5.0~10.0 wt.% of aggressiveness, 3.0~6.0 wt.% of aliphatic copolyester, dispersing agent 0.5~1.0
Wt.%, 0.5~1.0 wt.% of lubricant.
Further, the glass fibre is the fixed length chopped strand that distribution of lengths is 3.0~5.0 mm.
Further, the inherent viscosity of the high flowing PBT resin is 0.76~0.85.
Further, the aliphatic copolyester is poly- (EGS ethylene glycol succinate-succinic acid-butanediol ester), poly- (fourth two
One of sour glycol ester-dimethyl succinic acid butanediol ester) and poly- (EGS ethylene glycol succinate-phenylsuccinic acid butanediol ester)
Or it is several.
Further, the acrylic acid diglycidyl ether grafted elastomeric from aggressiveness be by sodium, calcium, magnesium, barium or zinc from
The acrylic acid diglycidyl ether grafted ethene-octene-acrylic acid copolymer elasticity of son crosslinking is from aggressiveness.
Further, the antioxidant is 1,3,5- trimethyls -2,4,6- (3,5- di-t-butyl -4- hydroxyphenylmethyl) benzene
(trade name antioxidant 1330) and bis- (2,4-dicumylphenyl) pentaerythritol diphosphites (trade name antioxidant
It S9228 is in mass ratio) compound of 1:1 composition.
Further, the bromide fire retardant is brominated Polystyrene, brominated polystyrene, brominated epoxy resin, ethyl-
Any one or a few in bis- (tetrabromo phthalimides), brominated polycarbonate and decabromodiphenylethane, preferably bromine
Change polystyrene to be applied in combination with brominated epoxy resin.
Further, the inorganic fire-retarded synergist is any one in antimony oxide and zinc borate or two kinds.
Further, the thermal conducting agent be pulverulent boron nitride, aluminium nitride, silicon carbide, aluminum oxide, zinc oxide,
One or more of nickel oxide.
Further, the opacifier is one or more of titanium dioxide, zinc sulphide and White Carbon black.
Further, the dispersing agent is one or more of stearic acid, calcium stearate or zinc stearate.
Further, the lubricant be ethylene-vinyl acetate co-polymer wax, ethylene-acrylic copolymer wax, E wax,
One or more of OP wax, pentaerythritol stearate and dimethyl silicone polymer.
A kind of method for preparing efficient enhanced flame-retarded heat-conducting shading multifunctional mother granules of PBT direct injection molding, it is described
Method is related to the preparation method of A master batch and B master batch, the preparation method of the A master batch the following steps are included:
(1) weigh according to the ratio glass fibre, Gao Liudong PBT resin, acrylic acid diglycidyl ether grafted elastomeric from aggressiveness and
Antioxidant, and height flowing PBT resin, aliphatic copolyester, acrylic acid diglycidyl ether grafted elastomeric from aggressiveness and are resisted
Oxygen agent puts into super mixer and is uniformly mixed；
(2) mixture obtained in step (1) is measured into feeding double screw extruder from main feeder, short glass fiber is led to
Side feeder metering feeding double screw extruder is crossed, blending extrusion is carried out and is granulated, obtain the A master batch.
Further, the barrel of double screw extruder to head temperature of each section is controlled at 230~275 DEG C, and screw speed is
250~300 revs/min.
A kind of method for preparing efficient enhanced flame-retarded heat-conducting shading multifunctional mother granules of PBT direct injection molding, it is described
Method is related to the preparation method of A master batch and B master batch, the preparation method of the B master batch the following steps are included:
(1) bromide fire retardant, inorganic fire-retarded synergist, thermal conducting agent, opacifier, aliphatic copolyester, acrylic acid are weighed according to the ratio
Diglycidyl ether grafted elastomeric is put into super mixer after mixing from aggressiveness, dispersing agent and lubricant
It is transferred in mixer and carries out hot milling, obtain bulk blend；
(2) the bulk blend obtained in step (1) is fed into single screw extrusion machine by taper feeder, is squeezed out simultaneously through melting
It is granulated, obtains the B master batch.
Further, the melting temperature of mixer is 120~135 DEG C, and mixing time is 15~20 minutes；Single screw rod squeezes out
The screw speed of machine is 150~200 revs/min, and barrel temperature is 155~165 DEG C.
It is using the beneficial effect of technical solution of the present invention:
It (1) is by the way of A master batch and the preparation of B master batch separate machined, to prepare respectively for the physical property feature of modified additive
Glass fiber reinforcement master batch (A master batch) and the thermally conductive shading master batch of bromo- antimony compositional flame-retardant (B master batch), effectively prevent PBT and glass
When the fire-retardant a variety of direct melt blendings of modified additive of glass fiber and thermally conductive, shading and bromine system squeeze out, because of fiber and solid packing
Between mutually shear and wear the enhancing modified performance of generation and mutually damage, while also solving two modified system processing temperatures and mismatching
Technical problem, to significantly improve two kinds of respective modified performances of modified additive.
(2) it is all made of in A and B master batch with polymolecularity and high-compatibility resin joint vector, not only effectively improves
The interface adhesion and its dispersibility in resin matrix of glass fibre, thermal conducting agent and opacifier and PBT resin, moreover it is possible to benefit
With the high flow behavior of these carriers, prepared A and B master batch is directly used in the injection moulding processing of PBT plastic product, and obtains
Superior enhancing, fire-retardant, thermally conductive and shaded effect.
(3) multifunctional mother granules prepared by the present invention are ingenious to have used two kinds of differences compared with conventional plastic functional agglomerate
The combination of functional agglomerate is processed respectively, and it is modified to not only solve different additive in modified plastics preparation process
The problem that efficiency is mutually damaged, produces the modified effect that 1+1 is much larger than 2, also has easily dispersion easy processing feature, can be moulded according to PBT
The performance requirement of material products directly applies to plastics system after A master batch and B master batch are simply mixed with PBT resin according to a certain ratio
The injection moulding of product is processed.Due to it is used in injection molding machine be that single screw rod melt promotes mode, to glass fibre and fire retardant
Shear action is very faint, substantially will not modification effect to the two damage, so as to avoid common plastics modifying process
In matrix resin and modified master batch be secondary or the multiple melting mixing by processing equipment caused by antioxidant loss, enhancing
Fiber Aspect Ratio loss and matrix resin thermal cracking problem, significantly improve the mechanical performance and long-time service of PBT product.
(4) present invention is effectively improving the PBT enhancing multiple modified efficiency of flame-retarded heat-conducting shading simultaneously, simplifies modifying plastics
Procedure of processing reduces the process-cycle, reduces energy consumption, improves production efficiency, is truly realized green chemical industry idea of development.
Combination type functional master batch of the invention it is female can flexibly to deploy A according to customer requirement in PBT plastic product process of injection molding
The combination of grain and B master batch and its its performance and cost are adjusted with the proportion of resin raw material.Methods and techniques of the invention
Can be widely applied to all kinds of PBT plastic products injection moulding and high performance and functional modification integration processing.
Specific embodiment
The following examples can make those skilled in the art that the present invention be more fully understood, but these embodiments are not
Limiting the scope of the invention." one embodiment " or " embodiment " referred to herein, which refers to, may be included in the present invention at least
A particular feature, structure, or characteristic in one implementation.In the present specification different places occur " in one embodiment
In " the same embodiment not is referred both to, nor the individual or selective embodiment mutually exclusive with other embodiments.
Embodiment 1
The efficient enhanced flame-retarded heat-conducting shading multifunctional mother granules of a kind of PBT resin direct injection molding, by two kinds of master batches of A and B
It is composed, the raw material mass mixture ratio of A master batch is as follows:
Antioxidant is 1,3,5- trimethyl -2,4,6- (3,5- di-t-butyl -4- hydroxyphenylmethyl) benzene (trade name antioxidant
1330) and bis- (2,4-dicumylphenyl) pentaerythritol diphosphites (trade name antioxidant S9228) are 1 in mass ratio:
The compound of 1 composition.
The raw material mass mixture ratio of its B master batch is as follows:
A master batch the preparation method is as follows: weigh all raw materials by above-mentioned quality proportioning requirement, then will be in addition to glass fibre
It is uniformly mixed in all raw material investment high-speed mixers, then obtained mixture is measured into feeding twin-screw extrusion from main feeder
Machine carries out blending extrusion and is granulated, described in acquisition by short glass fiber by side feeder metering feeding double screw extruder
A master batch；The barrel of double screw extruder to head temperature of each section is controlled at 230~275 DEG C, and screw speed is 250 revs/min.
B master batch the preparation method is as follows: weigh all raw materials by above-mentioned quality proportioning requirement, and put into mixed at high speed
It is transferred to after mixing in device in mixer and carries out hot milling, the melting temperature of mixer is 125 DEG C, and mixing time is 20 points
Clock feeds single screw extrusion machine by taper feeder, squeezes out and be granulated through melting, obtain then by acquired bulk blend
Obtain the B master batch；The screw speed of single screw extrusion machine is 185 revs/min, and barrel temperature Discrete control is at 155~165 DEG C.
Embodiment 2
The efficient enhanced flame-retarded heat-conducting shading multifunctional mother granules of a kind of PBT resin direct injection molding, by two kinds of master batches of A and B
It is composed, the raw material mass mixture ratio of A master batch is as follows:
Antioxidant is 1,3,5- trimethyl -2,4,6- (3,5- di-t-butyl -4- hydroxyphenylmethyl) benzene (trade name antioxidant
1330) and bis- (2,4-dicumylphenyl) pentaerythritol diphosphites (trade name antioxidant S9228) are 1 in mass ratio:
The compound of 1 composition.
The raw material mass mixture ratio of its B master batch is as follows:
A master batch the preparation method is as follows: weigh all raw materials by above-mentioned quality proportioning requirement, then will be in addition to glass fibre
It is uniformly mixed in all raw material investment high-speed mixers, then obtained mixture is measured into feeding twin-screw extrusion from main feeder
Machine carries out blending extrusion and is granulated, described in acquisition by short glass fiber by side feeder metering feeding double screw extruder
A master batch；The barrel of double screw extruder to head temperature of each section is controlled at 230~275 DEG C, and screw speed is 300 revs/min.
B master batch the preparation method is as follows: weigh all raw materials by above-mentioned quality proportioning requirement, and put into mixed at high speed
It is transferred to after mixing in device in mixer and carries out hot milling, the melting temperature of mixer is 125 DEG C, and mixing time is 18 points
Clock feeds single screw extrusion machine by taper feeder, squeezes out and be granulated through melting, obtain then by acquired bulk blend
Obtain the B master batch；The screw speed of single screw extrusion machine is 175 revs/min, and barrel temperature Discrete control is at 155~165 DEG C.
Embodiment 3
The efficient enhanced flame-retarded heat-conducting shading multifunctional mother granules of a kind of PBT resin direct injection molding, by two kinds of master batches of A and B
It is composed, the raw material mass mixture ratio of A master batch is as follows:
Antioxidant is 1,3,5- trimethyl -2,4,6- (3,5- di-t-butyl -4- hydroxyphenylmethyl) benzene (trade name antioxidant
1330) and bis- (2,4-dicumylphenyl) pentaerythritol diphosphites (trade name antioxidant S9228) are 1 in mass ratio:
The compound of 1 composition.
The raw material mass mixture ratio of its B master batch is as follows:
A master batch the preparation method is as follows: weigh all raw materials by above-mentioned quality proportioning requirement, then will be in addition to glass fibre
It is uniformly mixed in all raw material investment high-speed mixers, then obtained mixture is measured into feeding twin-screw extrusion from main feeder
Machine carries out blending extrusion and is granulated, described in acquisition by short glass fiber by side feeder metering feeding double screw extruder
A master batch；The barrel of double screw extruder to head temperature of each section is controlled at 230~275 DEG C, and screw speed is 280 revs/min.
B master batch the preparation method is as follows: weigh all raw materials by above-mentioned quality proportioning requirement, and put into mixed at high speed
It is transferred to after mixing in device in mixer and carries out hot milling, the melting temperature of mixer is 110 DEG C, and mixing time is 20 points
Clock feeds single screw extrusion machine by taper feeder, squeezes out and be granulated through melting, obtain then by acquired bulk blend
Obtain the B master batch；The screw speed of single screw extrusion machine is 160 revs/min, and barrel temperature Discrete control is at 155~165 DEG C.
Embodiment 4
The efficient enhanced flame-retarded heat-conducting shading multifunctional mother granules of a kind of PBT resin direct injection molding, by two kinds of master batches of A and B
It is composed, the raw material mass mixture ratio of A master batch is as follows:
Antioxidant is 1,3,5- trimethyl -2,4,6- (3,5- di-t-butyl -4- hydroxyphenylmethyl) benzene (trade name antioxidant
1330) and bis- (2,4-dicumylphenyl) pentaerythritol diphosphites (trade name antioxidant S9228) are 1 in mass ratio:
The compound of 1 composition.
The raw material mass mixture ratio of its B master batch is as follows:
A master batch the preparation method is as follows: weigh all raw materials by above-mentioned quality proportioning requirement, then will be in addition to glass fibre
It is uniformly mixed in all raw material investment high-speed mixers, then obtained mixture is measured into feeding twin-screw extrusion from main feeder
Machine carries out blending extrusion and is granulated, described in acquisition by short glass fiber by side feeder metering feeding double screw extruder
A master batch；The barrel of double screw extruder to head temperature of each section is controlled at 230~275 DEG C, and screw speed is 260 revs/min.
B master batch the preparation method is as follows: weigh all raw materials by above-mentioned quality proportioning requirement, and put into mixed at high speed
It is transferred to after mixing in device in mixer and carries out hot milling, the melting temperature of mixer is 115 DEG C, and mixing time is 20 points
Clock feeds single screw extrusion machine by taper feeder, squeezes out and be granulated through melting, obtain then by acquired bulk blend
Obtain the B master batch；The screw speed of single screw extrusion machine is 170 revs/min, and barrel temperature Discrete control is at 155~165 DEG C.
Embodiment 5
The efficient enhanced flame-retarded heat-conducting shading multifunctional mother granules of a kind of PBT resin direct injection molding, by two kinds of master batches of A and B
It is composed, the raw material mass mixture ratio of A master batch is as follows:
Antioxidant is 1,3,5- trimethyl -2,4,6- (3,5- di-t-butyl -4- hydroxyphenylmethyl) benzene (trade name antioxidant
1330) and bis- (2,4-dicumylphenyl) pentaerythritol diphosphites (trade name antioxidant S9228) are 1 in mass ratio:
The compound of 1 composition.
The raw material mass mixture ratio of its B master batch is as follows:
A master batch the preparation method is as follows: weigh all raw materials by above-mentioned quality proportioning requirement, then will be in addition to glass fibre
It is uniformly mixed in all raw material investment high-speed mixers, then obtained mixture is measured into feeding twin-screw extrusion from main feeder
Machine carries out blending extrusion and is granulated, described in acquisition by short glass fiber by side feeder metering feeding double screw extruder
A master batch；The barrel of double screw extruder to head temperature of each section is controlled at 230~275 DEG C, and screw speed is 270 revs/min.
B master batch the preparation method is as follows: weigh all raw materials by above-mentioned quality proportioning requirement, and put into mixed at high speed
It is transferred to after mixing in device in mixer and carries out hot milling, the melting temperature of mixer is 130 DEG C, and mixing time is 15 points
Clock feeds single screw extrusion machine by taper feeder, squeezes out and be granulated through melting, obtain then by acquired bulk blend
Obtain the B master batch；The screw speed of single screw extrusion machine is 180 revs/min, and barrel temperature Discrete control is at 155~165 DEG C.
Embodiment 6
The efficient enhanced flame-retarded heat-conducting shading multifunctional mother granules of a kind of PBT resin direct injection molding, by two kinds of master batches of A and B
It is composed, the raw material mass mixture ratio of A master batch is as follows:
Antioxidant is 1,3,5- trimethyl -2,4,6- (3,5- di-t-butyl -4- hydroxyphenylmethyl) benzene (trade name antioxidant
1330) and bis- (2,4-dicumylphenyl) pentaerythritol diphosphites (trade name antioxidant S9228) are 1 in mass ratio:
The compound of 1 composition.
The raw material mass mixture ratio of its B master batch is as follows:
A master batch the preparation method is as follows: weigh all raw materials by above-mentioned quality proportioning requirement, then will be in addition to glass fibre
It is uniformly mixed in all raw material investment high-speed mixers, then obtained mixture is measured into feeding twin-screw extrusion from main feeder
Machine carries out blending extrusion and is granulated, described in acquisition by short glass fiber by side feeder metering feeding double screw extruder
A master batch；The barrel of double screw extruder to head temperature of each section is controlled at 230~275 DEG C, and screw speed is 265 revs/min.
B master batch the preparation method is as follows: weigh all raw materials by above-mentioned quality proportioning requirement, and put into mixed at high speed
It is transferred to after mixing in device in mixer and carries out hot milling, the melting temperature of mixer is 130 DEG C, and mixing time is 20 points
Clock feeds single screw extrusion machine by taper feeder, squeezes out and be granulated through melting, obtain then by acquired bulk blend
Obtain the B master batch；The screw speed of single screw extrusion machine is 180 revs/min, and barrel temperature Discrete control is at 155~165 DEG C.
A master batch and B master batch are mixed according to any mass ratio in the present invention, unknown between the component in remaining place in the present invention
The expression for really writing proportionate relationship exactly is able to achieve according to arbitrary proportion.
To verify PBT resin direct injection molding prepared by the present invention with the efficient enhanced multi-functional mother of flame-retarded heat-conducting shading
A master batch prepared by embodiment 1-6 and B master batch, are pressed the quality percentage of 25 wt.% and 35wt.% by the modified effect of grain respectively
Than mixing simultaneously with PBT resin, direct injection forms test bars, then carries out properties detection；At the same time, according to reality
It applies and obtains the identical component of injection test bars and proportion in a 1-6, and be molded again after processing is blended by double screw extruder
Test bars are formed as reference examples, then its performance is detected.All properties test result is (wherein right as shown in table 1
1-6 is respectively as usual and composition is identical as proportion in embodiment 1-6 but uses injection molding again after twin-screw extrusion machining
The performance of test bars).
By the reference to data in table 1 show by PBT resin direct injection prepared by above embodiments of the present invention at
Type in component and is matched after being applied to the molding of PBT resin direct injection with efficient enhanced flame-retarded heat-conducting shading multifunctional mother granules
Than in identical situation, tensile strength, notch impact strength and the flame retardant property of plastic products, hence it is evident that better than using double spiral shells
Bar squeezes out the performance of injection moulded products again after machining.Using functional agglomerate of the invention, PBT will be not only greatly simplified
Resin modified procedure of processing improves processing efficiency, reduces energy consumption, also significantly enhances modified effect, realizes plastics system
The sustainable development theory of standby green processing.
Functional agglomerate direct injection prepared by 1 embodiment 1-6 of table forms PBT resin test bars and same materials formula
It is injection moulded the performance control of PBT resin test bars again through twin-screw extrusion machining
Table 1
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff completely may be used
Without departing from the scope of the technological thought of the present invention', to carry out various changes and amendments.It is all in spirit of the invention and
Within principle, any modification, equivalent substitution, improvement and etc. done be should all be included in the protection scope of the present invention.This item hair
Bright technical scope is not limited to the contents of the specification, it is necessary to its technical model is determined according to scope of the claims
It encloses.
Claims (10)
1. a kind of efficient enhanced flame-retarded heat-conducting shading multifunctional mother granules of PBT direct injection molding, it is characterised in that: described more
Functional agglomerate is composed of two kinds of master batches of A and B, and the mass percentage composition of the A master batch is as follows: glass fibre 50.0~
60.0 wt.%, Gao Liudong PBT resin, 35.0~40.0 wt.%, acrylic acid diglycidyl ether grafted elastomeric from aggressiveness 5.0~
10.0wt.%, 0.1~0.3 wt.% of antioxidant,
The glass fibre is the fixed length chopped strand that distribution of lengths is 3.0~5.0 mm, the characteristic of the high flowing PBT resin
Viscosity is 0.76~0.85, and the mass percentage composition of the B master batch is as follows: 45.0~55.0 wt.% of bromide fire retardant, inorganic
10.0~20.0 wt.% of fire retarding synergist, 10.0~20.0 wt.% of thermal conducting agent, 2.0~5.0 wt.% of opacifier, acrylic acid two
Glycidol ether grafted elastomeric from 5.0~10.0 wt.% of aggressiveness, 3.0~6.0 wt.% of aliphatic copolyester, dispersing agent 0.5~
1.0 wt.%, 0.5~1.0 wt.% of lubricant.
2. the efficient enhanced flame-retarded heat-conducting shading multifunctional mother granules of a kind of PBT direct injection molding according to claim 1,
It is characterized by: the aliphatic copolyester is poly- (EGS ethylene glycol succinate-succinic acid-butanediol ester), poly- (succinic acid second two
Alcohol ester-dimethyl succinic acid butanediol ester) and one of poly- (EGS ethylene glycol succinate-phenylsuccinic acid butanediol ester) or several
Kind.
3. the efficient enhanced flame-retarded heat-conducting shading multifunctional mother granules of a kind of PBT direct injection molding according to claim 1,
It is characterized by: the acrylic acid diglycidyl ether grafted elastomeric is to be crosslinked by sodium, calcium, magnesium, barium or zinc ion from aggressiveness
Acrylic acid diglycidyl ether grafted ethene-octene-acrylic acid copolymer elasticity from aggressiveness.
4. the efficient enhanced flame-retarded heat-conducting shading multifunctional mother granules of a kind of PBT direct injection molding according to claim 1,
It is characterized by: the antioxidant is 1,3,5- trimethyl -2,4,6- (3,5- di-t-butyl -4- hydroxyphenylmethyl) benzene and double
(2,4-dicumylphenyl) pentaerythritol diphosphites are the compound of 1:1 composition in mass ratio.
5. the efficient enhanced flame-retarded heat-conducting shading multifunctional mother granules of a kind of PBT direct injection molding according to claim 1,
It is characterized by: the bromide fire retardant is brominated Polystyrene, brominated polystyrene, brominated epoxy resin, ethyl-bis- (four
Bromine phthalimide), any one or a few in brominated polycarbonate and decabromodiphenylethane, preferably brominated polyphenylene
Ethylene is applied in combination with brominated epoxy resin, and the inorganic fire-retarded synergist is any one in antimony oxide and zinc borate
Or two kinds, the thermal conducting agent is one of the boron nitride of powder shaped, aluminium nitride, silicon carbide, aluminum oxide, nickel oxide or several
Kind, the opacifier is one or more of titanium dioxide, zinc oxide, zinc sulphide and White Carbon black.
6. the efficient enhanced flame-retarded heat-conducting shading multifunctional mother granules of a kind of PBT direct injection molding according to claim 1,
It is characterized by: the dispersing agent is one or more of stearic acid, calcium stearate or zinc stearate；The lubricant is second
Alkene-vinyl acetate co-polymer wax, ethylene-acrylic copolymer wax, E wax, OP wax, pentaerythritol stearate and poly dimethyl
One or more of siloxanes.
7. a kind of preparation efficiently enhanced flame-retarded heat-conducting screening of PBT direct injection molding as described in any one of claim 1-6
The method of light multifunctional mother granules, it is characterised in that: the preparation method of the A master batch the following steps are included:
(1) glass fibre, Gao Liudong PBT resin, aliphatic copolyester, acrylic acid diglycidyl ether grafting bullet are weighed according to the ratio
Property body from aggressiveness and antioxidant, and by height flow PBT resin, aliphatic copolyester, acrylic acid diglycidyl ether grafted elastomeric
Body is uniformly mixed from aggressiveness and antioxidant investment super mixer；
(2) mixture obtained in step (1) is measured into feeding double screw extruder from main feeder, short glass fiber is led to
Side feeder metering feeding double screw extruder is crossed, blending extrusion is carried out and is granulated, obtain the A master batch.
8. the efficient enhanced flame-retarded heat-conducting shading multifunctional mother granules of a kind of PBT direct injection molding according to claim 7
Preparation method, it is characterised in that: the processing technology of the A master batch are as follows: the barrel of double screw extruder to head temperature of each section
At 230~275 DEG C, screw speed is 250~300 revs/min for control.
9. a kind of preparation efficiently enhanced flame-retarded heat-conducting screening of PBT direct injection molding as described in any one of claim 1-6
The method of light multifunctional mother granules, it is characterised in that: the preparation method of the B master batch the following steps are included:
(1) bromide fire retardant, inorganic fire-retarded synergist, thermal conducting agent, opacifier, aliphatic copolyester, acrylic acid are weighed according to the ratio
Diglycidyl ether grafted elastomeric is put into super mixer after mixing from aggressiveness, dispersing agent and lubricant
It is transferred in mixer and carries out hot milling, obtain bulk blend；
(2) the bulk blend obtained in step (1) is fed into single screw extrusion machine by taper feeder, is squeezed out simultaneously through melting
It is granulated, obtains the B master batch.
10. the efficient enhanced flame-retarded heat-conducting shading multifunctional mother granules of a kind of PBT direct injection molding according to claim 9
Preparation method, it is characterised in that: the processing technology of the B master batch are as follows: the melting temperature of mixer be 120~135 DEG C, be kneaded
Time is 15~20 minutes；The screw speed of single screw extrusion machine is 150~200 revs/min, and barrel temperature is 155~165
℃。
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| CN113234291A (en) * | 2021-06-10 | 2021-08-10 | 广东九彩新材料有限公司 | Polystyrene carbon black master batch and preparation method thereof |
| CN113337036A (en) * | 2021-04-21 | 2021-09-03 | 日丰企业集团有限公司 | Modified polypropylene material and preparation method thereof |
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| CN103131147A (en) * | 2013-03-29 | 2013-06-05 | 威海联桥新材料科技股份有限公司 | High heat wire inflaming retarding enhancement polybutylece terephthalate (PBT) material and manufacturing method thereof |
| CN103160080A (en) * | 2011-12-14 | 2013-06-19 | 合肥杰事杰新材料股份有限公司 | A halogen free flame retardant long glass fiber reinforced PBT composite material and a preparation method thereof |
| CN103881313A (en) * | 2012-12-21 | 2014-06-25 | 青岛欣展塑胶有限公司 | Polybutylene terephthalate toughening master batch and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160080A (en) * | 2011-12-14 | 2013-06-19 | 合肥杰事杰新材料股份有限公司 | A halogen free flame retardant long glass fiber reinforced PBT composite material and a preparation method thereof |
| CN103881313A (en) * | 2012-12-21 | 2014-06-25 | 青岛欣展塑胶有限公司 | Polybutylene terephthalate toughening master batch and preparation method thereof |
| CN103131147A (en) * | 2013-03-29 | 2013-06-05 | 威海联桥新材料科技股份有限公司 | High heat wire inflaming retarding enhancement polybutylece terephthalate (PBT) material and manufacturing method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113337036A (en) * | 2021-04-21 | 2021-09-03 | 日丰企业集团有限公司 | Modified polypropylene material and preparation method thereof |
| CN113234291A (en) * | 2021-06-10 | 2021-08-10 | 广东九彩新材料有限公司 | Polystyrene carbon black master batch and preparation method thereof |
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