CN112409771A - Lightweight foaming PC/ABS composition for automobile and preparation method thereof - Google Patents
Lightweight foaming PC/ABS composition for automobile and preparation method thereof Download PDFInfo
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- 229920007019 PC/ABS Polymers 0.000 title claims abstract description 44
- 238000005187 foaming Methods 0.000 title claims abstract description 41
- 239000000203 mixture Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 30
- 238000001125 extrusion Methods 0.000 claims abstract description 21
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims abstract description 20
- 238000002156 mixing Methods 0.000 claims abstract description 17
- 239000000314 lubricant Substances 0.000 claims abstract description 14
- 229920005989 resin Polymers 0.000 claims abstract description 14
- 239000011347 resin Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000004642 Polyimide Substances 0.000 claims abstract description 9
- 238000005469 granulation Methods 0.000 claims abstract description 9
- 230000003179 granulation Effects 0.000 claims abstract description 9
- 229920001721 polyimide Polymers 0.000 claims abstract description 9
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 8
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 8
- 239000004962 Polyamide-imide Substances 0.000 claims abstract description 7
- 229920002312 polyamide-imide Polymers 0.000 claims abstract description 7
- 239000004417 polycarbonate Substances 0.000 claims description 25
- 239000000155 melt Substances 0.000 claims description 12
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 8
- 239000004952 Polyamide Substances 0.000 claims description 5
- 229920002647 polyamide Polymers 0.000 claims description 5
- QSRJVOOOWGXUDY-UHFFFAOYSA-N 2-[2-[2-[3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoyloxy]ethoxy]ethoxy]ethyl 3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C)=CC(CCC(=O)OCCOCCOCCOC(=O)CCC=2C=C(C(O)=C(C)C=2)C(C)(C)C)=C1 QSRJVOOOWGXUDY-UHFFFAOYSA-N 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims description 2
- 229920000402 bisphenol A polycarbonate polymer Polymers 0.000 claims description 2
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 claims description 2
- -1 pentaerythritol ester Chemical class 0.000 claims description 2
- 239000012994 photoredox catalyst Substances 0.000 claims description 2
- 239000004431 polycarbonate resin Substances 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 claims 1
- 239000000956 alloy Substances 0.000 abstract description 8
- 229910045601 alloy Inorganic materials 0.000 abstract description 4
- 230000000704 physical effect Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 18
- 239000002994 raw material Substances 0.000 description 13
- 239000000463 material Substances 0.000 description 12
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 6
- 238000005303 weighing Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- CWGSOQVETBJTME-UHFFFAOYSA-N 3-(2-phenylethenyl)pyrrole-2,5-dione Chemical compound O=C1NC(=O)C(C=CC=2C=CC=CC=2)=C1 CWGSOQVETBJTME-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical group [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PFBWBEXCUGKYKO-UHFFFAOYSA-N ethene;n-octadecyloctadecan-1-amine Chemical compound C=C.CCCCCCCCCCCCCCCCCCNCCCCCCCCCCCCCCCCCC PFBWBEXCUGKYKO-UHFFFAOYSA-N 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000003678 scratch resistant effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/22—After-treatment of expandable particles; Forming foamed products
- C08J9/228—Forming foamed products
-
- C—CHEMISTRY; METALLURGY
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/02—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by the reacting monomers or modifying agents during the preparation or modification of macromolecules
-
- C—CHEMISTRY; METALLURGY
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/16—Making expandable particles
-
- C—CHEMISTRY; METALLURGY
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
-
- C—CHEMISTRY; METALLURGY
- 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
- C08J2355/00—Characterised by the use of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08J2323/00 - C08J2353/00
- C08J2355/02—Acrylonitrile-Butadiene-Styrene [ABS] polymers
-
- C—CHEMISTRY; METALLURGY
- 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
- C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
-
- C—CHEMISTRY; METALLURGY
- 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
- C08J2455/00—Characterised by the use of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08J2423/00 - C08J2453/00
- C08J2455/02—Acrylonitrile-Butadiene-Styrene [ABS] polymers
-
- C—CHEMISTRY; METALLURGY
- 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
- C08J2469/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
Abstract
The invention relates to a lightweight foaming PC/ABS composition for automobiles and a preparation method thereof, wherein the composition comprises the following components in parts by weight: PC resin: 30-40 parts of ABS resin: 20-40 parts of foaming master batch: 10-30 parts of an antioxidant: 0.1-1 part of lubricant: 0.1-1 part; the preparation method of the alloy comprises the following steps: (a) preparing foaming master batches from part of PC resin and polyamide or polyimide; (b) and c, feeding the foaming master batch obtained in the step a, the other part of PC resin and ABS through a main feeding port of a double-screw extruder, blending and granulating, and performing melt extrusion and granulation to obtain the foaming PC/ABS composition with excellent physical properties. Compared with the prior art, the PC/ABS composition provided by the invention is prepared by preparing the foaming master batch through a two-step method, and then blending the foaming master batch, the PC and the ABS to prepare the low-density foaming PC/ABS alloy.
Description
Technical Field
The invention relates to the field of high polymer materials, in particular to a lightweight PC/ABS material for an automobile, and specifically relates to a lightweight foamed PC/ABS composition for an automobile and a preparation method thereof.
Background
The PC/ABS alloy has excellent mechanical property and thermal property, and is widely applied to the fields of automobiles, household appliances, digital products and the like. With the requirement for lighter weight of automobiles in main engine plants becoming higher and higher, many materials are gradually eliminated due to high density and high filling property, so that the research on PC/ABS is urgent, and how to obtain high heat resistance and high toughness materials under the condition of reducing density is the trend of future PC/ABS applications of automobiles.
As PC provides heat resistance and toughness in PC/ABS, and the density of PC is higher, the density of PC/ABS with high toughness and high heat resistance is higher, and the density of PC/ABS is 1.12-1.18g/cm3How to reduce the density of PC/ABS to reach ABS grade without affecting the heat resistance and toughness is ensured, and even the density is lower than that of ABS, so that the PC/ABS has not been researched by too many relevant columns and documents.
Patent document CN107353569A describes a low-density and high-heat-resistance PC/ABS alloy material, which has the characteristics of light weight, high hydrolysis resistance, high thermal stability and the like, and greatly reduces the weight of common PC/ABS products by improving the heat resistance of the PC/ABS alloy material through the high heat resistance of styrene-maleimide and the compatibilization of SAM and reducing the density of the alloy material. But the density of the prepared PC/ABS alloy material is only 1.07-1.10g/cm3Therefore, the weight reduction cannot be achieved.
Disclosure of Invention
The present invention has been made to overcome the above-mentioned drawbacks of the prior art and an object of the present invention is to provide a foamed PC/ABS composition for automobiles which is lightweight.
The purpose of the invention is realized by the following technical scheme:
the invention provides a lightweight foaming PC/ABS composition for automobiles and a preparation method thereof, wherein the lightweight foaming PC/ABS composition comprises the following components in parts by weight:
PC resin: 30-40 parts of a binder;
ABS resin: 20-40 parts of a solvent;
foaming master batch: 10-30 parts;
antioxidant: 0.1-1 part;
lubricant: 0.1 to 1 portion.
Preferably, the PC resin is bisphenol A polycarbonate resin, and the melt index under the condition of 300 ℃/1.2kg is 8-20 g/10 min. When the melt index is less than 8g/10min, the processing is difficult; and when the melt index is higher than 20g/10min, the toughness is poor.
Preferably, the melt index of the ABS resin under the condition of 220 ℃/10kg is 10-15 g/min, and when the melt index is too high or too low, the melt index has an influence on the toughness and the impact toughness of the material.
Preferably, the slip foaming master batch is prepared by blending PC and polyamide.
Preferably, the slip foaming master batch comprises the following components in parts by weight:
PC resin: 50-90 parts;
polyamide or polyimide: 10-50 parts;
when the polyamide or polyimide is more than 40 parts by weight, extrusion is difficult; below 20 parts by weight, the foaming efficiency is too low to prepare low density PC/ABS.
Preferably, the preparation steps of the foaming master batch are as follows:
uniformly mixing the PC resin and the polyamide or the polyimide, adding the mixture from a feed port of an extruder, controlling the extrusion temperature at 220-250 ℃, and performing melt extrusion granulation to obtain the foaming master batch.
According to the invention, the hydroxyl of the PC resin is combined with the amide group of the polyamide or polyimide, and carbon dioxide and ammonia gas are produced during reaction and extrusion, so that the chemical foaming PC/ABS material is formed.
Preferably, the antioxidant comprises one or more of commercially available antioxidant 245, antioxidant 1076 and antioxidant 168.
Preferably, the lubricant comprises one or more of silicone powder, pentaerythritol ester and ethylene bisstearylamide.
The invention also provides a preparation method of the lightweight foaming PC/ABS composition for the automobile, which comprises the following steps:
(a) adding the PC resin, the ABS resin, the foaming master batch, the antioxidant and the lubricant into a mixing stirrer for mixing;
(b) and c, feeding the mixture obtained in the step a through a main feeding port of a double-screw extruder, blending and granulating, and performing melt extrusion and granulation to obtain the foamed PC/ABS composition.
Preferably, in the step (b), the temperature of the melt extrusion is 220-260 ℃.
The principle of the invention is as follows: preparing a low-density high-heat-resistance high-impact PC/ABS alloy by adopting a two-step method; the first step is to extrude and granulate the PC and the reactive polyamide or polyimide to prepare the foaming master batch, and the second step is to blend and extrude the foaming master batch, other PC and ABS together to prepare the low-density PC/ABS.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention firstly prepares the foaming master batch by PC and reactive polyamide or polyimide, and then adds the foaming master batch into PC/ABS, and the method is controllable, and the prepared PC/ABS has low density, high heat resistance and good toughness.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
The PC selected in the following examples and comparative examples is Hunan petrochemical PC-1100, and the melt index is 10g/10 min; the melt index of ABS is 12g/10min under the test of high petrochemical ABS8434,220 ℃; the polyamide is EPR32 of the Mars chemical industry; the antioxidant is 1010 and 168 produced by CIBA company, and the lubricant is calcium stearate.
Comparative example 1
A PC/ABS composition with excellent paint spraying property and a preparation method thereof are disclosed, the method comprises the following steps:
(1) weighing the following components in parts by weight: PC-1100: 70 parts, ABS 8434: 30 parts, antioxidant 1010: 0.1 part, antioxidant 168: 0.1 part, a lubricant PETS: 0.3 part.
(2) All the raw materials are uniformly mixed and then fed from a feeding port of an extruder, and are melted and extruded at 220-260 ℃, the rotating speed of a screw extruder is 500rpm, the pressure is 2MPa, and the product is obtained through melting, extruding and granulating.
Comparative example 2
A transparent scratch resistant polycarbonate composition and a method for preparing the same, the method comprising the steps of:
(1) weighing the following components in parts by weight: PC is PC-1100: 80 parts, ABS 8434: 20 parts of antioxidant 1010: 0.1, antioxidant 168: 0.1 part, a lubricant PETS: 0.3 part.
(2) All the raw materials are uniformly mixed and then fed from a feeding port of an extruder, and are melted and extruded at 220-260 ℃, the rotating speed of a screw extruder is 500rpm, the pressure is 2MPa, and the product is obtained through melting, extruding and granulating.
Example 1
(1) Mixing a PC-1100: 80 parts and EPR 322: 20 parts of the mixture is uniformly mixed and added from a feed inlet of an extruder, the extrusion temperature is controlled at 220 ℃ and 250 ℃, the screw rotation speed is 450rpm, and the foaming master batch is obtained through melt extrusion granulation;
(2) weighing the following components in parts by weight: PC is PC-1100: 40 parts, ABS 8434: 30 parts of foaming master batch (prepared in step (1)): 30 parts, antioxidant 1010: 0.1 part, antioxidant 168: 0.1 part, a lubricant PETS: 0.3 part.
(3) And (3) uniformly mixing the raw materials in the step (2), feeding the raw materials from a feeding port of an extruder, performing melt extrusion at 220-260 ℃, performing melt extrusion at the rotating speed of 500rpm and the pressure of 2MPa of a screw extruder, and performing melt extrusion and granulation to obtain the product.
Example 2
(1) Mixing a PC-1100: 60 parts and EPR 322: uniformly mixing 40 parts of the mixture, adding the mixture from a feed inlet of an extruder, controlling the extrusion temperature at 220 ℃ and 250 ℃ and the screw rotation speed at 450rpm, and performing melt extrusion granulation to obtain foaming master batches;
(2) weighing the following components in parts by weight: PC is PC-1100: 40 parts, ABS 8434: 30 parts of foaming master batch (prepared in step (1)): 30 parts, antioxidant 1010: 0.1 part, antioxidant 168: 0.1 part, a lubricant PETS: 0.3 part.
(3) And (3) uniformly mixing the raw materials weighed in the step (2), feeding the raw materials from a feeding port of an extruder, performing melt extrusion at 220-260 ℃, performing melt extrusion at the rotating speed of 500rpm and the pressure of 2MPa of a screw extruder, and performing melt extrusion and granulation to obtain the product.
Example 3
Example 3 is essentially the same as example 1, except that: the content of the raw material PC-1100 adopted in the step (1) is 90 parts, and the content of EPR32 is 10 parts.
Example 4
Example 4 is essentially the same as example 1, except that: the PC-1100 raw material adopted in the step (1) comprises 50 parts, and the EPR32 raw material comprises 50 parts.
Example 5
Example 5 is essentially the same as example 1, except that: the step (2) is as follows: weighing the following components in parts by weight: PC is PC-1100: 40 parts, ABS 8434: 20 parts of foaming master batch (prepared in step (1)): 20 parts of antioxidant 1010: 0.5 part, antioxidant 168: 0.5 part, and a lubricant PETS: 1 part.
Example 6
Example 6 is essentially the same as example 1, except that: the step (2) is as follows: weighing the following components in parts by weight: PC is PC-1100: 35 parts, ABS 8434: 40 parts of foaming master batch (prepared in step (1)): 10 parts of antioxidant 1010: 0.1 part, antioxidant 168: 0.1 part, a lubricant PETS: 0.1 part.
Comparative example 3
This comparative example is essentially the same as example 1 except that: in the specific preparation steps, the preparation of the foaming master batch in the step (1) is not carried out in the comparative example, but the raw materials PC-1100 and EPR322 (the weight ratio of the two is 8:2, and the total weight is 30 parts) in the step (1) are directly used for replacing the foaming master batch in the step (2) to carry out the treatment in the step (3), so that the product is obtained.
Comparative example 4
This comparative example is essentially the same as example 3, except that: the content of the raw material PC-1100 adopted in the step (1) is 95 parts, and the content of EPR32 is 5 parts.
Comparative example 5
This comparative example is essentially the same as example 4, except that: the PC-1100 raw material used in the step (1) comprises 45 parts by weight and the EPR32 raw material comprises 55 parts by weight.
Comparative example 6
This comparative example is essentially the same as example 1 except that: the weight portion of the foaming master batch adopted in the step (2) is 35 portions.
Comparative example 7
This comparative example is essentially the same as example 6, except that: the foaming master batch adopted in the step (2) accounts for 5 parts by weight.
Effect verification:
the example and comparative example pellets were injection molded into ISO bars, respectively, and the physical properties of the materials were tested and the values are shown in tables 1 and 2 below.
TABLE 1
TABLE 2
As shown in tables 1 and 2, the density of the material can be greatly reduced by preparing the foaming master batch through a two-step method, for example, the density of the material is 1.14g/cm in comparative example 1 and comparative example 13Reduced to 1.05g/cm3Compared with ABS, the heat resistance is slightly improved, and the impact strength of the material is from 45.2KJ/m2Increased to 48.6KJ/m2(ii) a Comparative examples 3 and pairsRatio 1, almost no change in the heat resistance of the material, and a density of from 1.14g/cm3The reduction is 1.09g/cm3Notched impact strength of from 45.2KJ/m2Increased to 50.6KJ/m2The foaming method is proved to be capable of not only reducing the density, but also improving the impact toughness of the material. The PC/ABS material with low density, high impact and high heat resistance prepared by the method can meet the trend and the requirement of light weight of automobiles.
The invention has many applications, and the above description is only a preferred embodiment of the invention. It should be noted that the above examples are only for illustrating the present invention, and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications can be made without departing from the principles of the invention and these modifications are to be considered within the scope of the invention.
Claims (10)
1. The lightweight foaming PC/ABS composition for the automobile is characterized by comprising the following components in parts by weight:
PC resin: 30-40 parts of a binder;
ABS resin: 20-40 parts of a solvent;
foaming master batch: 10-30 parts;
antioxidant: 0.1-1 part;
lubricant: 0.1 to 1 portion.
2. The foamed PC/ABS composition for automobile use according to claim 1, wherein the PC resin is a bisphenol A polycarbonate resin and has a melt index of 8 to 20g/10min at 300 ℃/1.2 kg.
3. The lightweight foamed PC/ABS composition for automobiles according to claim 1, wherein the melt index of the ABS resin at 220 ℃/10kg is 10 to 15 g/min.
4. The lightweight foamed PC/ABS composition for automobiles according to claim 1, wherein the foamed masterbatch is prepared by blending PC and polyamide.
5. The lightweight foamed PC/ABS composition for automobiles according to claim 1 or 4, wherein the foamed masterbatch comprises the following components in parts by weight:
PC resin: 50-90 parts;
polyamide or polyimide: 10-50 parts.
6. The lightweight foamed PC/ABS composition for automobiles according to claim 5, wherein the preparation steps of the foamed masterbatch are as follows:
uniformly mixing the PC resin and the polyamide or the polyimide, adding the mixture from a feed port of an extruder, controlling the extrusion temperature at 220-250 ℃, and performing melt extrusion granulation to obtain the foaming master batch.
7. The lightweight foamed PC/ABS composition for automobiles according to claim 1, wherein said antioxidant comprises one or more of commercially available antioxidant 245, antioxidant 1076, and antioxidant 168.
8. The light weight foamed PC/ABS composition for automobiles according to claim 1, wherein said lubricant comprises one or more of silicone powder, pentaerythritol ester, ethylene bisstearamide.
9. A method of preparing a lightweight foamed PC/ABS composition for automobiles according to any of claims 1 to 8, characterized by comprising the steps of:
(a) adding the PC resin, the ABS resin, the foaming master batch, the antioxidant and the lubricant into a mixing stirrer for mixing;
(b) and c, feeding the mixture obtained in the step a through a main feeding port of a double-screw extruder, blending and granulating, and performing melt extrusion and granulation to obtain the foamed PC/ABS composition.
10. The method for producing a lightweight foamed PC/ABS composition for automobiles according to claim 9, wherein in the step (b), the temperature of the melt extrusion is 220 to 260 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011167606.6A CN112409771A (en) | 2020-10-27 | 2020-10-27 | Lightweight foaming PC/ABS composition for automobile and preparation method thereof |
Applications Claiming Priority (1)
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367328A (en) * | 2011-08-31 | 2012-03-07 | 上海锦湖日丽塑料有限公司 | Microcellular foam PC/ABS alloy material for electroplating and preparation method thereof |
| CN102863771A (en) * | 2012-09-26 | 2013-01-09 | 上海锦湖日丽塑料有限公司 | Lightweight polycarbonate composition and preparation method thereof |
| CN105683291A (en) * | 2013-10-29 | 2016-06-15 | 罗地亚经营管理公司 | Foamable polyamide composition and foam obtained therefrom |
| CN106674963A (en) * | 2016-12-26 | 2017-05-17 | 上海普利特化工新材料有限公司 | Microporous foamed PC (polycarbonate)-ABS (acrylonitrile butadiene styrene) alloy material and preparation method thereof |
| CN107936521A (en) * | 2017-12-15 | 2018-04-20 | 会通新材料股份有限公司 | A kind of lightweight PC/ABS micro foaming composite materials and preparation method thereof |
| CN108350207A (en) * | 2015-10-28 | 2018-07-31 | 株式会社东进世美肯 | Thermally decomposable compound and method for foaming resin using same |
| CN109423043A (en) * | 2017-08-24 | 2019-03-05 | 尤尼吉可株式会社 | Foaming Amilan polyamide resin composition, foaming polyamide granulate mixture and expanded moldings |
-
2020
- 2020-10-27 CN CN202011167606.6A patent/CN112409771A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367328A (en) * | 2011-08-31 | 2012-03-07 | 上海锦湖日丽塑料有限公司 | Microcellular foam PC/ABS alloy material for electroplating and preparation method thereof |
| CN102863771A (en) * | 2012-09-26 | 2013-01-09 | 上海锦湖日丽塑料有限公司 | Lightweight polycarbonate composition and preparation method thereof |
| CN105683291A (en) * | 2013-10-29 | 2016-06-15 | 罗地亚经营管理公司 | Foamable polyamide composition and foam obtained therefrom |
| CN108350207A (en) * | 2015-10-28 | 2018-07-31 | 株式会社东进世美肯 | Thermally decomposable compound and method for foaming resin using same |
| CN106674963A (en) * | 2016-12-26 | 2017-05-17 | 上海普利特化工新材料有限公司 | Microporous foamed PC (polycarbonate)-ABS (acrylonitrile butadiene styrene) alloy material and preparation method thereof |
| CN109423043A (en) * | 2017-08-24 | 2019-03-05 | 尤尼吉可株式会社 | Foaming Amilan polyamide resin composition, foaming polyamide granulate mixture and expanded moldings |
| CN107936521A (en) * | 2017-12-15 | 2018-04-20 | 会通新材料股份有限公司 | A kind of lightweight PC/ABS micro foaming composite materials and preparation method thereof |
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Application publication date: 20210226 |