CN106317826A - PC/ABS alloy material for automotive trim and preparation method thereof - Google Patents
PC/ABS alloy material for automotive trim and preparation method thereof Download PDFInfo
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- CN106317826A CN106317826A CN201610707578.XA CN201610707578A CN106317826A CN 106317826 A CN106317826 A CN 106317826A CN 201610707578 A CN201610707578 A CN 201610707578A CN 106317826 A CN106317826 A CN 106317826A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
- C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention relates to a PC/ABS alloy material for automotive trim and a preparation method thereof. The PC/ABS alloy material is characterized by consisting of the following raw materials in parts by weight: 30-70 parts of polycarbonate (PC), 20-60 parts of styrene-butadiene-acrylonitrile copolymer (ABS), 5-30 parts of styrene-acrylonitrile copolymer (AS), 1-3 parts of a compatilizer, 1-3 parts of a flow modifier, 1-3 parts of a surface polarity improver and 0.5-1 part of a processing aid. The problem of cracking of a product of the PC/ABS alloy material is fundamentally solved; and meanwhile, the smell is good, the content of organic volatile matters is low, the physical properties are good, the solvent resistance of the material is enhanced, and the paint spraying and flocking effects of the material are remarkably improved.
Description
Technical field
The present invention relates to modified PC/ABS alloy material, a kind of sprayable, automotive trim PC/ABS of flocking
Alloy material and preparation method thereof, it is adaptable to the making of automotive upholstery, as on instrumental panel skeleton, door-plate fill skeleton, instrument board,
Inside rear-view mirror housing, except mist grid, air-conditioner air outlet, auxiliary fasia console and glove box etc..
Background technology
Along with the increase year by year of auto output, people are more and more higher to the requirement of automotive interior material, the most not only
It is limited to use, new requirement is proposed for safety, comfortableness, aesthetic property etc..People chase after for attractive in appearance
Ask, also accelerate the development rate of automotive interior material and the improvement of the subsequent machining technology to interior material, the most internally
Exterior material carries out spraying paint, it is most commonly seen to electroplate, and on medium-to-high grade automobile, flocking part the most more and more occurs, this just requires
Interior material should meet various different after-processing technology.
At present, using most in automotive trim plastic parts is modified PC/ABS series alloy material, PC/ABS alloy material
Material has merged the superior function of PC resin and ABS resin, has many uses general, enhances the heat-resisting dimensional stability of ABS resin, changes
Being apt to the low temperature of PC resin, the resistance to punching property of heavy wall, reduced production cost, anti-impact force is strong.It is well known that, PC resin resistance to
Solvent nature is very poor, sprays paint and flocking technique all can produce considerable influence to PC resin, easily make material property degradation,
The phenomenon such as the most cracking；Same problem also appears in PC/ABS alloy material, especially the higher PC/ of heatproof rank
ABS material.In order to solve the problem of product spraying cracking, CN103342886A disclose a kind of spraying PC/ABS alloy material and
Its preparation method, its formula system is PC+ABS+SAN+ processing aid, owing to adding high flowing SAN resin (AS) so that
PC/ABS alloy material has higher mobility, and the internal stress that product is formed in injection molding process reduces, and is used for spraying
Post-treatment, causes the probability that plastic basis material ftractures due to internal stresses release after reducing spraying.But it is the most fundamentally
Solving material cracks problem, reason is: 1, PC resin and the poor compatibility of ABS resin；2, PC resin content is higher；3, material
Surface polarity more weak, little to paint and the adhesive force of fine hair thing.
Summary of the invention
The invention aims to provide a kind of automotive trim PC/ABS alloy material and preparation method thereof, from all
Upper solution PC/ABS alloy material product problem of Cracking, abnormal smells from the patient is excellent simultaneously, and volatile organic content is few, good physical properties,
The solvent resistance of reinforcing material, significantly improves spraying paint and flocking effect of material.
The technical scheme is that
A kind of automotive trim PC/ABS alloy material, it is characterised in that be made up of following raw material by weight:
Described Merlon (PC) is weight average molecular weight bisphenol A-type fragrance adoption between 20000～40000g/mol
Carbonic ester；
The molecular weight of described SAN (AS) is 80000～150000；
Described compatilizer is styrene butadiene thermoplasticelastomer, MBS three
At least one in membered copolymer, polyester elastomer, polyolefin elastomer；
Described flow ability modifying agent be high flowing SAN, with styrene with acrylonitrile as main monomer
One in low-molecular-weight random copolymer or two kinds；
Described surface polarity modifier is at least one in a-methyl styrene, maleimide, grafting POE.
Further, described Acrylnitrile-Butadiene-Styrene (ABS) is that substance law is prepared from, and whiteness is good,
Abnormal smells from the patient is low.
Further, during described processing aid is primary antioxidant, auxiliary antioxidant, in-lubricant, external lubricant at least
A kind of；Described primary antioxidant is β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid positive octadecanol ester, four [β-(3,5-bis-uncles
Butyl-4-hydroxy phenyl) propanoic acid] pentaerythritol ester, double (2,4-di-tert-butyl-phenyl) tetramethylolmethane, 2,6-di-t-butyl-4-4
At least one in cresol；Described auxiliary antioxidant is three (2,4-di-tert-butyl-phenyl) phosphite ester, sulfur propanoic acid February in generation three
At least one in the double stearic alcohol ester of osmanthus ester, thio-2 acid；Described in-lubricant is in E wax, calcium stearate, Tissuemat E
At least one；Described external lubricant is the one in silicone master batch tetramethylolmethane stearate or two kinds.
Further, described SAN (AS) is by the acrylonitrile that content is 10～30wt% and remaining
The styrene composition of amount.
Further, this automotive trim PC/ABS alloy material, it is made up of following raw material by weight:
Described Merlon (PC) is the weight average molecular weight bisphenol A-type aromatic copolycarbonate at 20000g/mol；
The molecular weight of described SAN (AS) is 80000；
Described compatilizer is MBS terpolymer；
Described flow ability modifying agent is with styrene and the acrylonitrile low-molecular-weight random copolymer as main monomer；
Described surface polarity modifier is a-methyl styrene.
The preparation method of a kind of automotive trim PC/ABS alloy material, it is characterised in that comprise the steps:
1), by Merlon (PC), Acrylnitrile-Butadiene-Styrene (ABS), SAN
(AS), compatilizer, flow ability modifying agent, surface polarity modifier and processing aid are weighed by following weight portion:
2), by step 1) in each raw material of weighing join in high mixer stirring and be sufficiently mixed for 2-4 minute, premixed
Material；
3), by premix material adding melted in double screw extruder, extrusion, described double screw extruder separately sets nine in addition to head
The individual charging thermal treatment zone, technological parameter is as follows:
4), extrudate is cooled down under water, and utilize pelleter to cut pelletize, divide after pelleter product is dried
Dress.
Further, step 4) in, drying device uses air dry oven, and baking temperature controls at 90 DEG C ± 10 DEG C, dry
The dry time controls at 3h～5h.
The invention has the beneficial effects as follows:
1, by selecting use molecular weight bigger, the base material PC that molecular weight distribution is narrower, improve the resistance to of alloy material
Solvent nature.
2, on the premise of meeting the requirement of testing of materials outline heatproof, that tries one's best reduces PC content, reduces alloy material
Expect spraying paint or probability cracking after flocking.
3, compatilizer is used to improve the blended effect of two kinds of resins of PC and ABS so that both preferably merge, on microcosmic
Form a structure, further increase the solvent resistance of alloy material.
4, use flow ability modifying agent, improve the mobility of material, the internal stress of release PC resin, further reduce material
Cracking probability spraying paint, after flocking.
5, use surface polarity modifier, improve the surface polarity of alloy material, add alloy material and paint or floss
Adhesive force between hair thing, thus improve yield rate, enhance spraying paint or flocking effect of alloy material.
6, two kinds of resins of PC and ABS used, residual monomer and volatile solvent content are low.
To sum up, the present invention possesses the moulding processability of excellence, and excellent properties for follow, to molding complexity product
Adaptability, outstanding heatproof, life-time service anti-fatigue performance.
Detailed description of the invention
Embodiment 1
This automotive trim PC/ABS alloy material, table 1 asked for an interview by its raw material composition (by weight).
Wherein, described Merlon (PC) is the weight average molecular weight bisphenol A-type aromatic copolycarbonate at 20000g/mol,
In the present embodiment, select the PC 1250Y of Supreme Being people's chemistry.The molecular weight of described SAN (AS) is 80000,
Wherein, acrylonitrile content is 10wt%, and styrene-content is 90wt%；In the present embodiment, select the AS 80HF of LG company.Institute
Stating Acrylnitrile-Butadiene-Styrene (ABS) is that substance law is prepared from, and whiteness is good, and abnormal smells from the patient is low.In the present embodiment, choosing
8434 produced with Shanghai Gaoqiao petrochemical corporation (complex).Described compatilizer is MBS ternary
Copolymer, in the present embodiment, selects the MBS-2620 that Rhom and Hass produces, the phase being effectively increased between PC and ABS material
Hold, improve material property.Described flow ability modifying agent is with styrene and the acrylonitrile low-molecular-weight random copolymer as main monomer,
In the present embodiment, select EMI 100 series of the liter of Nantong day.Described surface polarity modifier is a-methyl styrene.Described
Processing aid is primary antioxidant, and described primary antioxidant is β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid positive octadecanol ester.
The preparation method of this alloy material, comprises the steps:
1), by Merlon (PC), Acrylnitrile-Butadiene-Styrene (ABS), SAN
(AS), compatilizer, flow ability modifying agent, surface polarity modifier and processing aid press weight portion weighing in table 1；2), by step 1)
Each raw material of middle weighing joins stirring in high mixer and is sufficiently mixed, and obtains premix material；3), premix material is added twin-screw extrusion
Melted, extrusion in machine, described double screw extruder separately sets nine charging thermals treatment zone in addition to head；4), extrudate is carried out under water
Cooling, and utilize pelleter to cut pelletize, pelleter product is dried rear subpackage, wherein, drying device uses air blast to do
Dry case.Concrete technology parameter asks for an interview table 2.
Embodiment 2
This automotive trim PC/ABS alloy material, table 1 asked for an interview by its raw material composition (by weight).
In the present embodiment, described Merlon (PC) is the weight average molecular weight bisphenol A-type fragrance adoption at 30000g/mol
Carbonic ester, selects the PC 1225L of Di Ren company in the present embodiment.The molecular weight of described SAN (AS) is
100000, wherein acrylonitrile content is 30wt%, and styrene-content is 70wt%.Described styrene-butadiene-acrylonitrile compolymer
Thing (ABS) is that substance law is prepared from.In the present embodiment, select the 8391 of the production of Shanghai Gaoqiao petrochemical corporation (complex).Described phase
Appearance agent is styrene butadiene thermoplasticelastomer.Described flow ability modifying agent is high flowing SAN.Institute
Stating surface polarity modifier is maleimide.Described processing aid is anti-by primary antioxidant, the auxiliary according to weight ratio 1:1:1:1
Oxygen agent, in-lubricant, external lubricant composition (in reality can arbitrarily proportioning), wherein, described primary antioxidant is four [β-(3,5-bis-
Tert-butyl-hydroxy phenyl) propanoic acid] pentaerythritol ester；Described auxiliary antioxidant is sulfur generation three propanoic acid dilauryls；Described interior profit
Lubrication prescription is calcium stearate；Described external lubricant is tetramethylolmethane stearate.
Preparation process asks for an interview table 2 with embodiment 1, concrete technology parameter.
Embodiment 3
This automotive trim PC/ABS alloy material, table 1 asked for an interview by its raw material composition (by weight).
In the present embodiment, described Merlon (PC) is the weight average molecular weight bisphenol A-type fragrance adoption at 40000g/mol
Carbonic ester；The molecular weight of described SAN (AS) is 150000, described SAN
(AS) in, acrylonitrile content is 20wt%, and styrene-content is 80wt%.Described Acrylnitrile-Butadiene-Styrene
(ABS) it is that substance law is prepared from.In the present embodiment, select the 3513 of the production of Shanghai Gaoqiao petrochemical corporation (complex).Described compatible
Agent is that the mixture of polyester elastomer and polyolefin elastomer, polyester elastomer and polyolefin elastomer mix by weight 1:1.
Described flow ability modifying agent is with styrene and the acrylonitrile low-molecular-weight random copolymer as main monomer.Described surface polarity improves
Agent is grafting POE.Described processing aid is by primary antioxidant, auxiliary antioxidant, in-lubricant, external lubricant 2:1:2 by weight:
1 composition, wherein, described primary antioxidant is double (2,4-di-tert-butyl-phenyl) tetramethylolmethanes；Described auxiliary antioxidant is sulfur generation two
The double stearic alcohol ester of propanoic acid；Described in-lubricant is Tissuemat E；Described external lubricant is tetramethylolmethane stearate and season penta 4
Alcohol stearate is by weight 1:1 mixing (in reality can arbitrarily proportioning).
Preparation process asks for an interview table 2 with embodiment 1, concrete technology parameter.
Embodiment 4
This automotive trim PC/ABS alloy material, table 1 asked for an interview by its raw material composition (by weight).
In the present embodiment, described Merlon (PC) is the weight average molecular weight bisphenol A-type fragrance adoption at 25000g/mol
Carbonic ester；The molecular weight of described SAN (AS) is 120000, described SAN
(AS) in, acrylonitrile content is 25wt%, and styrene-content is 75wt%.Described Acrylnitrile-Butadiene-Styrene
(ABS) it is that substance law is prepared from.In the present embodiment, select the 3504 of the production of Shanghai Gaoqiao petrochemical corporation (complex).Described compatible
Agent is styrene butadiene thermoplasticelastomer, MBS terpolymer, polyester
Body three's equivalent (weight ratio 1:1:1) mixes.Described flow ability modifying agent be high flowing SAN, with
Styrene mixes with the low-molecular-weight random copolymer that acrylonitrile is main monomer, and both weight ratios are that 1:1 (can in reality
Arbitrarily proportioning).Described surface polarity modifier is that a-methyl styrene and maleimide are by weight 1:1 mixing
Become.Described processing aid is that the primary antioxidant of 1:1:1, in-lubricant, external lubricant form by weight ratio, and described primary antioxidant is
The mixture of β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid positive octadecanol ester and 2,6-di-t-butyl-4-4 cresol (is pressed
Weight ratio 1:1)；Described in-lubricant is the mixture (by weight 1:1) of E wax and calcium stearate；Described external lubricant is silicon
Ketone master batch.
Preparation process asks for an interview table 2 with embodiment 1, concrete technology parameter.
Embodiment 5
This automotive trim PC/ABS alloy material, table 1 asked for an interview by its raw material composition (by weight).
In the present embodiment, described Merlon (PC) is the weight average molecular weight bisphenol A-type fragrance adoption at 35000g/mol
Carbonic ester；The molecular weight of described SAN (AS) is 140000, described SAN
(AS) in, acrylonitrile content is 15wt%, and styrene-content is 85wt%.Described Acrylnitrile-Butadiene-Styrene
(ABS) it is that substance law is prepared from.In the present embodiment, select the 3504 of the production of Shanghai Gaoqiao petrochemical corporation (complex).Described compatible
Agent is styrene butadiene thermoplasticelastomer and MBS terpolymer equivalent
Mix.Described flow ability modifying agent is the low-molecular-weight random copolymer as main monomer with styrene and acrylonitrile.Described table
Face polarity modifier is the mixture (by weight 1:1:1) of a-methyl styrene, maleimide, grafting POE.Described processing
Auxiliary agent is formed (by weight 1:1) by primary antioxidant, in-lubricant, and described primary antioxidant is β-(3,5-di-t-butyl-4-hydroxyls
Phenyl) propanoic acid positive octadecanol ester, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid] pentaerythritol ester, double (2,4-bis-
Tert-butyl-phenyl) mixture (by weight 1:1:1:1) of tetramethylolmethane and 2,6-di-t-butyl-4-4 cresol.Described interior lubrication
Agent is the mixture (by weight 1:1:1) of E wax, calcium stearate and Tissuemat E.
Preparation process asks for an interview table 2 with embodiment 1, concrete technology parameter.
Comparative example 1
Get the raw materials ready by following weight: PC resin 50 parts, ABS resin 45 parts, 0.4 part of antioxidant, lubricant 0.3
Part.
Preparation process is as follows:
1), PC resin, ABS resin, antioxidant, lubricant are weighed by above weight portion；
2), by step 1) in each raw material of weighing join in high mixer stirring mixing 5 minutes, obtain premix material；
3), by premix material adding melted in double screw extruder, extrusion, described double screw extruder separately sets ten in addition to head
One thermal treatment zone, district, technological parameter is as follows:
4), extrudate is cooled down under water, and utilize pelleter to cut pelletize, divide after pelleter product is dried
Dress, baking temperature controls at 90 DEG C, drying time 1hr.
Comparative example 2
Get the raw materials ready by following weight: PC resin 40 parts, ABS resin 55 parts, high flowing SAN resin 4 parts, antioxygen
Agent 0.1 part, lubricant 1 part, described high flowing SAN resin, wherein acrylonitrile weight percent content is 20%, styrene weight
Amount degree is 80%；Described antioxidant is four [β-(3,5-di-t-butyl 4-hydroxy phenyl) propanoic acid] pentaerythritol ester
Mixture with triethylene-glycol double [β-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) propionic ester]；Described lubricant is
N, N-ethylene bis stearic acid amide.
Product is prepared by the method for comparative example 1.
Comparative example 3
Get the raw materials ready by following weight: PC resin 50 parts, ABS resin 45 parts, high flowing SAN resin 16 parts, anti-
Oxygen agent 0.4 part, lubricant 0.3 part.Described high flowing SAN resin wherein acrylonitrile weight percent content is 30%, benzene second
Alkene weight percent content is 70%；Described antioxidant is double stearyl alcohol pentaerythritol diphosphites and three (2,4-
Di-tert-butyl-phenyl) mixture of phosphite ester；Described lubricant is tetramethylolmethane stearic acid.
Product is prepared by the method for comparative example 1.
Table 1
| Component | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| PC | 30 | 40 | 50 | 60 | 70 |
| ABS | 60 | 50 | 40 | 30 | 20 |
| AS | 5 | 10 | 15 | 20 | 30 |
| Compatilizer | 1 | 1.5 | 2 | 2.5 | 3 |
| Flow ability modifying agent | 1 | 1.5 | 2 | 2.5 | 3 |
| Surface polarity modifier | 1 | 1.5 | 2 | 2.5 | 3 |
| Processing aid | 0.5 | 0.6 | 0.7 | 0.8 | 1 |
Table 2
The alloy material that embodiment 1-5 and comparative example 1-3 prepare is put into injection machine respectively, prepares test bars Progressive symmetric erythrokeratodermia
Can test, test result asks for an interview table 3.
Table 3 the performance test results
| Performance indications | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Spray paint effect | A level | A level | A level | A level | A level | B level | B level | B level |
| Flocking effect | A level | A level | A level | A level | A level | C level | C level | C level |
| Cracking ratio | 0% | 0% | 0% | 0% | 0% | 10% | 8% | 8% |
In table 3, effect of spraying paint: A level represents sprays paint uniformly, without flow liner；B level represents that face of spraying paint exists less than 5% tiny stream
Stricture of vagina situation；Flocking effect: A level represent flocking uniformly, velour leaking rate less than 0.1%；C level represents between velour leaking rate 5%-10%.
From above-described embodiment and comparative example it can be seen that PC/ABS alloy system, by AS (the raising compatibility) with
And the addition of flow ability modifying agent, add the solvent resistance of material so that material has an effect of preferably spraying paint, but due to
Flocking is higher to the requirement of material surface polarity, therefore, it is also desirable to add surface polarity modifier further improve material
Surface polarity, promote the solvent resistance of material, thus reach preferable flocking effect and crack resistence performance.
Claims (7)
1. an automotive trim PC/ABS alloy material, it is characterised in that be made up of following raw material by weight:
Described Merlon (PC) is weight average molecular weight bisphenol A-type aromatic polycarbonate between 20000～40000g/mol
Ester；
The molecular weight of described SAN (AS) is 80000～150000；
Described compatilizer be styrene butadiene thermoplasticelastomer, MBS ternary altogether
At least one in polymers, polyester elastomer, polyolefin elastomer；
Described flow ability modifying agent is high flowing SAN, with styrene and acrylonitrile as main monomer low point
Son amount random copolymer in one or two kinds；
Described surface polarity modifier is at least one in a-methyl styrene, maleimide, grafting POE.
Automotive trim PC/ABS alloy material the most according to claim 1, it is characterised in that: described styrene-fourth two
Alkene-acrylonitrile copolymer (ABS) is that substance law is prepared from.
Automotive trim PC/ABS alloy material the most according to claim 1, it is characterised in that: described processing aid is main
At least one in antioxidant, auxiliary antioxidant, in-lubricant, external lubricant；Described primary antioxidant is β-(tertiary fourth of 3,5-bis-
Base-4-hydroxy phenyl) propanoic acid positive octadecanol ester, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid] pentaerythritol ester,
At least one in double (2,4-di-tert-butyl-phenyl) tetramethylolmethane, 2,6-di-t-butyl-4-4 cresol；Described auxiliary antioxidant
Be in three (2,4-di-tert-butyl-phenyl) phosphite ester, sulfur generation three propanoic acid dilauryls, the double stearic alcohol ester of thio-2 acid extremely
Few one；Described in-lubricant is at least one in E wax, calcium stearate, Tissuemat E；Described external lubricant is silicone master batch
One in tetramethylolmethane stearate or two kinds.
Automotive trim PC/ABS alloy material the most according to claim 1, it is characterised in that: described styrene-propene
Lonitrile copolymer (AS) is made up of the styrene of the acrylonitrile that content is 10～30wt% and surplus.
Automotive trim PC/ABS alloy material the most according to claim 1, it is characterised in that: this automotive trim PC/
ABS alloy material, is made up of following raw material by weight:
Described Merlon (PC) is the weight average molecular weight bisphenol A-type aromatic copolycarbonate at 20000g/mol；
The molecular weight of described SAN (AS) is 80000；
Described compatilizer is MBS terpolymer；
Described flow ability modifying agent is with styrene and the acrylonitrile low-molecular-weight random copolymer as main monomer；
Described surface polarity modifier is a-methyl styrene.
6. the automotive trim preparation method of PC/ABS alloy material, it is characterised in that comprise the steps:
1), by Merlon (PC), Acrylnitrile-Butadiene-Styrene (ABS), SAN
(AS), compatilizer, flow ability modifying agent, surface polarity modifier and processing aid are weighed by following weight portion:
2), by step 1) in each raw material of weighing join in high mixer stirring and be sufficiently mixed for 2-4 minute, obtain premix material；
3), by premix material adding melted in double screw extruder, extrusion, described double screw extruder separately sets nine in addition to head and enters
The material thermal treatment zone, technological parameter is as follows:
4), extrudate is cooled down under water, and utilize pelleter to cut pelletize, pelleter product is dried rear subpackage.
The preparation method of automotive trim PC/ABS alloy material the most according to claim 6, it is characterised in that: step 4)
In, drying device uses air dry oven, and baking temperature controls at 90 DEG C ± 10 DEG C, and drying time controls at 3h～5h.
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| CN107446336A (en) * | 2017-09-08 | 2017-12-08 | 太仓市华鼎塑料有限公司 | A kind of low smell exempts to spray PC/ABS materials and preparation method thereof |
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| CN110982239A (en) * | 2019-12-23 | 2020-04-10 | 上海日之升科技有限公司 | High-blackness PC/ABS alloy material for automotive interior parts and preparation method thereof |
| CN110982239B (en) * | 2019-12-23 | 2022-03-11 | 上海日之升科技有限公司 | High-blackness PC/ABS alloy material for automotive interior parts and preparation method thereof |
| CN112341782A (en) * | 2020-11-02 | 2021-02-09 | 上海普利特复合材料股份有限公司 | PC/ABS alloy material with low butadiene residue and preparation method thereof |
| CN112646346A (en) * | 2020-12-24 | 2021-04-13 | 金发科技股份有限公司 | Paint-spraying-resistant PC/ABS alloy material and preparation method thereof |
| WO2022141602A1 (en) * | 2020-12-31 | 2022-07-07 | 佳易容聚合物(上海)有限公司 | Pc/abs composite material having high chemical resistance, and preparation method therefor |
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