CN117050499A - Flame-retardant toughened PC/ABS alloy and preparation method thereof - Google Patents
Flame-retardant toughened PC/ABS alloy and preparation method thereof Download PDFInfo
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- CN117050499A CN117050499A CN202311035199.7A CN202311035199A CN117050499A CN 117050499 A CN117050499 A CN 117050499A CN 202311035199 A CN202311035199 A CN 202311035199A CN 117050499 A CN117050499 A CN 117050499A
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- toughening agent
- abs alloy
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- flame retardant
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- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 239000003063 flame retardant Substances 0.000 title claims abstract description 33
- 229920007019 PC/ABS Polymers 0.000 title claims abstract description 26
- 239000000956 alloy Substances 0.000 title claims abstract description 26
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title description 6
- 239000012745 toughening agent Substances 0.000 claims abstract description 46
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims abstract description 17
- -1 vinyl acrylic ester Chemical class 0.000 claims abstract description 13
- 239000004417 polycarbonate Substances 0.000 claims abstract description 10
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 8
- 239000002131 composite material Substances 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 5
- 150000001875 compounds Chemical class 0.000 claims abstract description 3
- 229920006225 ethylene-methyl acrylate Polymers 0.000 claims description 10
- 239000005043 ethylene-methyl acrylate Substances 0.000 claims description 10
- 239000000314 lubricant Substances 0.000 claims description 7
- 238000012360 testing method Methods 0.000 claims description 7
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-M acrylate group Chemical group C(C=C)(=O)[O-] NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 3
- 239000003963 antioxidant agent Substances 0.000 claims description 3
- 230000003078 antioxidant effect Effects 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- QLZJUIZVJLSNDD-UHFFFAOYSA-N 2-(2-methylidenebutanoyloxy)ethyl 2-methylidenebutanoate Chemical compound CCC(=C)C(=O)OCCOC(=O)C(=C)CC QLZJUIZVJLSNDD-UHFFFAOYSA-N 0.000 claims description 2
- BQPNUOYXSVUVMY-UHFFFAOYSA-N [4-[2-(4-diphenoxyphosphoryloxyphenyl)propan-2-yl]phenyl] diphenyl phosphate Chemical compound C=1C=C(OP(=O)(OC=2C=CC=CC=2)OC=2C=CC=CC=2)C=CC=1C(C)(C)C(C=C1)=CC=C1OP(=O)(OC=1C=CC=CC=1)OC1=CC=CC=C1 BQPNUOYXSVUVMY-UHFFFAOYSA-N 0.000 claims description 2
- OBTARUYASFQRHM-UHFFFAOYSA-N benzene-1,3-diol;diphenoxyphosphoryl diphenyl phosphate Chemical compound OC1=CC=CC(O)=C1.C=1C=CC=CC=1OP(OP(=O)(OC=1C=CC=CC=1)OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 OBTARUYASFQRHM-UHFFFAOYSA-N 0.000 claims description 2
- 239000005042 ethylene-ethyl acrylate Substances 0.000 claims description 2
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 claims description 2
- BLCTWBJQROOONQ-UHFFFAOYSA-N ethenyl prop-2-enoate Chemical compound C=COC(=O)C=C BLCTWBJQROOONQ-UHFFFAOYSA-N 0.000 claims 3
- 230000000052 comparative effect Effects 0.000 description 6
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 description 3
- 239000011258 core-shell material Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000006750 UV protection Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a flame-retardant toughened PC/ABS alloy, which comprises the following components in parts by weight: polycarbonate, ABS resin, a composite toughening agent, a flame retardant and an anti-dripping agent, wherein the composite toughening agent is a compound of MBS toughening agent/vinyl acrylic ester block toughening agent, and the weight ratio range is (1-5): (5-1). According to the invention, through the specific composite toughening agent, the improvement of mechanical properties and the more stable thin-wall flame retardant property can be simultaneously realized.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a flame-retardant toughened PC/ABS alloy and a preparation method thereof.
Background
The PC/ABS alloy has the molding processability of ABS resin, and also has the mechanical property, temperature resistance and ultraviolet resistance of PC resin, and is widely applied to automobile interior parts, business machines, communication equipment, household appliances and lighting equipment. Therefore, flame retardant-toughened PC/ABS alloys are a trend in prior art modification.
The MBS toughening agent with a core-shell structure is commonly used in the PC/ABS alloy in the prior art, and toughness is realized through the toughening agent with the core-shell structure, but oxygen index is reduced, so that flame retardance is reduced. In particular, the flame retardance of thin walls is difficult to reach V-0.
Disclosure of Invention
The invention aims to overcome the technical defects and provide the PC/ABS alloy which achieves the flame retardance of thin walls (1.5 mm and 1.0 mm) V-0 and has good toughness and the preparation method thereof.
The invention is realized by the following technical scheme:
the flame-retardant toughened PC/ABS alloy comprises the following components in parts by weight:
60-80 parts of polycarbonate;
10-20 parts of ABS resin;
1-8 parts of a composite toughening agent;
10-20 parts of flame retardant;
0.1-2 parts of anti-dripping agent;
the composite toughening agent is a compound of MBS toughening agent/vinyl acrylic ester block toughening agent, and the weight ratio range is (1-5): (5-1).
Preferably, the weight ratio of MBS toughening agent/vinyl acrylic ester block toughening agent is in the range of (3.5-2.5): (1.5-2.5).
The vinyl acrylic ester block toughening agent is at least one selected from ethylene-methyl acrylate block toughening agent and ethylene-ethyl acrylate block toughening agent, wherein the content of acrylic ester units is 20-40% and the preferable content of acrylic ester units is 27-31% based on the weight percentage of the vinyl acrylic ester block toughening agent.
In the ABS resin, the weight content of SAN is 58-82%, and the preferred weight content of SAN is 68-77%.
The flame retardant is at least one selected from bisphenol A-bis (diphenyl phosphate), triphenyl phosphate and resorcinol tetraphenyl diphosphate.
The anti-dripping agent is selected from polytetrafluoroethylene.
The melt index of the polycarbonate ranges from 5g/10min to 25g/10min, and the test conditions are 2.16kg and 260 ℃.
The lubricating agent also comprises at least one of 0-2 parts of antioxidant and lubricant by weight.
The preparation method of the flame-retardant toughened PC/ABS alloy comprises the steps of uniformly mixing all the components according to the proportion, extruding and granulating by a double-screw extruder, wherein the temperature range of a screw is 200-280 ℃, and the rotating speed range is 200-800 revolutions per minute, so that the flame-retardant toughened PC/ABS alloy is obtained.
The invention has the following beneficial effects:
according to the invention, the toughness is improved and the oxygen index is reduced by compounding the MBS toughening agent/vinyl acrylic ester block toughening agent, compared with the toughening agent with single MBS toughening agent or a core-shell structure, so that stable thin-wall flame retardance can be achieved.
Description of the embodiments
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 present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
The sources of the raw materials used in the invention are as follows:
PC resin: the melt index is 10, the brand is 141, and the manufacturer is a Saint foundation.
ABS resin-1: SAN weight content is 80%, brand is 757, manufacturer is Qimei;
ABS resin-2: SAN weight content is 60%, brand is 747, manufacturer is Qimei;
ABS resin-3: SAN weight content is 70%, brand 12A1, manufacturer is bench;
ABS resin-4: SAN weight content is 75%, the brand is 15A1, and the manufacturer is the bench;
MBS toughening agent: the brand is EM500, and the manufacturer is LG chemistry;
ethylene-methyl acrylate block toughener a: the content of the acrylic ester unit is 24%, the brand is 24MA02T, and the manufacturer is Acomax;
ethylene-methyl acrylate block toughener B: the content of the acrylic ester unit is 29%, the brand is 29MA03T, and the manufacturer is Acomax;
ethylene-methyl acrylate block toughener C: the content of the acrylic ester unit is 35%, the brand is 35BA40, and the manufacturer is Acomat;
polytetrafluoroethylene: the brand is SN3300, and the manufacturer is entropy energy;
flame retardant: BDP;
and (3) a lubricant: the brand is PETS-AH, and the manufacturer is a hair base;
an antioxidant: the brands are 1010 and 186, and the manufacturer is basf;
the preparation method of the flame-retardant toughened PC/ABS alloy comprises the following steps: according to the proportion, the components are evenly mixed, extruded and granulated by a double-screw extruder, the temperature of the screw is set to be 180-260 ℃, and the rotating speed is 400-550 r/min, so that the flame-retardant toughened PC/ABS alloy is obtained. The testing method comprises the following steps:
(1) Flame retardancy: the invention adopts GB/T2408-2008 plastic combustion performance measurement, and refers to a vertical method, a sample is vertically placed, is burned by flame with constant size, and the flame retardant grade is confirmed by the combustion condition (whether self-extinguishing dripping and the like) of the sample and the ignition capability of inflammable substances. The flame retarding capabilities can be classified into V-0, V-1 and V-2 grades and NR (not passed) according to the size thereof.
(3) Impact strength: the impact strength measured by the invention is the impact strength of a cantilever beam, a machine is used for placing a sample at a position specified by a laboratory impact analyzer according to the GB/T1843.1-2008 standard, a pendulum is freely dropped by hand, and when the sample is damaged by impact and external force, the impact energy generated and absorbed by the unit cross-sectional area of the sample is recorded, namely the impact strength of the test material is tested.
Table 1: examples 1-8 flame retardant toughened PC/ABS alloy component content (parts by weight) and test results
| Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | Example 7 | Example 8 | |
| PC resin | 64 | 60 | 80 | 64 | 64 | 64 | 64 | 64 |
| ABS resin-1 | 15 | 20 | 10 | 15 | 15 | 15 | 15 | 15 |
| MBS toughening agent | 4 | 5 | 3 | 0.84 | 1 | 2.5 | 3.5 | 4.16 |
| Ethylene-methyl acrylate block toughener A | 1 | 3 | 5 | 4.16 | 4 | 2.5 | 1.5 | 0.84 |
| Flame retardant | 14 | 17 | 20 | 14 | 14 | 14 | 14 | 14 |
| Polytetrafluoroethylene | 0.5 | 0.2 | 1 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Lubricant | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Antioxidant | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Flame retardance 1.5mm | V-0 | V-0 | V-0 | V-1 | V-0 | V-0 | V-0 | V-1 |
| Flame retardance 1.0mm | V-1 | V-0 | V-0 | V-1 | V-1 | V-0 | V-0 | V-1 |
| Impact strength kJ/m 2 | 70 | 50 | 52 | 66 | 66 | 66 | 65 | 70 |
As is clear from examples 1/4-8, the preferred MBS toughening agent/vinyl acrylic block type toughening agent has better flame retardance in the weight ratio range.
Table 2: examples 9-13 flame retardant toughened PC/ABS alloy component content (parts by weight) and test results
| Example 9 | Example 10 | Example 11 | Example 12 | Example 13 | |
| PC resin | 64 | 64 | 64 | 64 | 64 |
| ABS resin-1 | 15 | 15 | |||
| ABS resin-2 | 15 | ||||
| ABS resin-3 | 15 | ||||
| ABS resin-4 | 15 | ||||
| MBS toughening agent | 4 | 4 | 4 | 4 | 4 |
| Ethylene-methyl acrylate block toughener A | 1 | 1 | 1 | ||
| Ethylene-methyl acrylate block toughener B | 1 | ||||
| Ethylene-methyl acrylate block toughener C | 1 | ||||
| Flame retardant | 14 | 14 | 14 | 14 | 14 |
| Polytetrafluoroethylene | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Lubricant | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Antioxidant | 1 | 1 | 1 | 1 | 1 |
| Flame retardance 1.5mm | V-1 | V-0 | V-0 | V-0 | V-0 |
| Flame retardance 1.0mm | V-1 | V-0 | V-0 | V-0 | V-1 |
| Impact strength kJ/m 2 | 70 | 72 | 71 | 72 | 73 |
As is clear from examples 1/9 to 11, the ABS resin preferably has a SAN content of 68 to 77% by weight, and not only has higher impact strength but also has better flame retardancy.
As is evident from examples 1/12-13, the preferred acrylate unit content is from 27% to 31% with better flame retardance.
Table 3: comparative flame retardant toughened PC/ABS alloy component content (weight parts) and test results
| Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | |
| PC resin | 64 | 64 | 64 | 64 |
| ABS resin-1 | 15 | 15 | 15 | 15 |
| MBS toughening agent | 5 | 0.5 | 4.5 | |
| Ethylene-methyl acrylate block toughener A | 5 | 4.5 | 0.5 | |
| Flame retardant | 14 | 14 | 14 | 14 |
| Polytetrafluoroethylene | 0.5 | 0.5 | 0.5 | 0.5 |
| Lubricant | 0.5 | 0.5 | 0.5 | 0.5 |
| Antioxidant | 1 | 1 | 1 | 1 |
| Flame retardance 1.5mm | V-2 | V-1 | V-1 | V-1 |
| Flame retardance 1.0mm | NR | NR | V-2 | V-2 |
| Impact strength kJ/m 2 | 50 | 50 | 66 | 70 |
As is clear from the comparative examples, if the compounded toughening agent is not within the scope of the present invention, the flame retardance is poor and the impact strength is low.
Claims (9)
1. The flame-retardant toughened PC/ABS alloy is characterized by comprising the following components in parts by weight:
60-80 parts of polycarbonate;
10-20 parts of ABS resin;
1-8 parts of a composite toughening agent;
10-20 parts of flame retardant;
0.1-2 parts of anti-dripping agent;
the composite toughening agent is a compound of MBS toughening agent/vinyl acrylic ester block toughening agent, and the weight ratio range is (1-5): (5-1).
2. The flame retardant toughened PC/ABS alloy according to claim 1, wherein the weight ratio of MBS toughening agent/vinyl acrylate block type toughening agent is in the range of (3.5-2.5): (1.5-2.5).
3. The flame retardant and toughened PC/ABS alloy according to claim 1, wherein the vinyl acrylate block type toughening agent is selected from at least one of ethylene-methyl acrylate block type toughening agent and ethylene-ethyl acrylate block type toughening agent, wherein the acrylate unit content is 20-40%, preferably the acrylate unit content is 27-31% by weight of the vinyl acrylate block type toughening agent.
4. The flame retardant toughened PC/ABS alloy according to claim 1, wherein the ABS resin comprises 58% to 82% SAN by weight, preferably 68% to 77% SAN by weight.
5. The flame retardant toughened PC/ABS alloy according to claim 1, wherein said flame retardant is selected from at least one of bisphenol a-bis (diphenyl phosphate), triphenyl phosphate, resorcinol tetraphenyl diphosphate.
6. The flame retardant toughened PC/ABS alloy as claimed in claim 1 wherein said anti-drip agent is selected from polytetrafluoroethylene.
7. The flame retardant toughened PC/ABS alloy according to claim 1, wherein the polycarbonate has a melt index in the range of 5-25g/10min under test conditions of 2.16kg at 260 ℃.
8. The flame retardant toughened PC/ABS alloy according to claim 1, further comprising 0-2 parts by weight of at least one of an antioxidant, a lubricant.
9. The method for preparing the flame-retardant toughened PC/ABS alloy according to any one of claims 1-8, which is characterized in that the components are uniformly mixed according to the proportion, extruded and granulated by a double-screw extruder, the temperature range of the screw is 200-280 ℃ and the rotating speed range is 200-800 rpm, so that the flame-retardant toughened PC/ABS alloy is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311035199.7A CN117050499A (en) | 2023-08-17 | 2023-08-17 | Flame-retardant toughened PC/ABS alloy and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311035199.7A CN117050499A (en) | 2023-08-17 | 2023-08-17 | Flame-retardant toughened PC/ABS alloy and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117050499A true CN117050499A (en) | 2023-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311035199.7A Pending CN117050499A (en) | 2023-08-17 | 2023-08-17 | Flame-retardant toughened PC/ABS alloy and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117050499A (en) |
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2023
- 2023-08-17 CN CN202311035199.7A patent/CN117050499A/en active Pending
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