CN111154222A - ABS/PMMA alloy and preparation method thereof - Google Patents

ABS/PMMA alloy and preparation method thereof Download PDF

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Publication number
CN111154222A
CN111154222A CN202010061171.0A CN202010061171A CN111154222A CN 111154222 A CN111154222 A CN 111154222A CN 202010061171 A CN202010061171 A CN 202010061171A CN 111154222 A CN111154222 A CN 111154222A
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China
Prior art keywords
abs
silicone
pmma
parts
pmma alloy
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Pending
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CN202010061171.0A
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Chinese (zh)
Inventor
杨金山
黄险波
叶南飚
王林
刘学亮
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Chengdu Kingfa Technology New Material Co ltd
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Chengdu Kingfa Technology New Material Co ltd
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Priority to CN202010061171.0A priority Critical patent/CN111154222A/en
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L55/00Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
    • C08L55/02ABS [Acrylonitrile-Butadiene-Styrene] polymers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025Polymer 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
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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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 an ABS/PMMA alloy, which is further improved in scratch resistance and toughness by compounding a certain amount of silicone/silicone rubber. The defect that the toughness is extremely reduced after the content ratio of PMMA is improved is relieved, and the defect that the surface is soft and the friction resistance is poor after the content ratio of ABS is improved is also relieved.

Description

ABS/PMMA alloy and preparation method thereof
Technical Field
The invention relates to the technical field of high polymer materials, in particular to an ABS/PMMA alloy and a preparation method thereof.
Background
At present, the blended alloy materials of ABS and PMMA (polymethyl methacrylate) in China have a lot of names, and the blended modified system mainly takes ABS as the main component and PMMA as the auxiliary component. Compared with pure ABS resin, the ABS/PMMA alloy material has better surface gloss and strength, but the toughness is obviously attenuated along with the increase of the content of PMMA. The ABS/PMMA alloy material is mainly used as an appearance material, and besides the basic mechanical properties, the surface properties of a molded product are very critical, such as surface hardness, glossiness, scratch resistance and the like. The improvement of the surface performance mainly depends on the PMMA component, but the increase of the PMMA component causes the toughness of the alloy material to be poorer, and the use requirement of the product cannot be met.
Chinese patent application CN109929127A discloses a silicone rubber which is beneficial to the hot vulcanization composite molding of materials with low softening points (such as thermoplastic plastics ABS, PMMA, PC/ABS, PC and the like). However, the addition of silicone rubber only has very limited toughening to ABS/PMMA alloy, and when the addition amount is too large, the hardness of the alloy is greatly reduced, and the performance requirement of the appearance material cannot be met.
Chinese patent application CN106009476A discloses a high-hardness impact PMMA/ABS composite material, MBS is taken as a toughening agent, and polyester graft modified silicone auxiliary agent is taken as a surface modifier, so as to improve brittleness and obtain high hardness and impact resistance. However, the alloy has insufficient performance, the addition of the polyester graft modified silicone can only provide good surface modification effect, and cannot be used for toughening with MBS in a synergistic way, and a compatilizer needs to be added.
In conclusion, it is of practical significance to develop an ABS/PMMA alloy with good surface performance and good toughness.
Disclosure of Invention
The invention aims to solve the technical defects and obtain the ABS/PMMA alloy with good toughness and surface performance.
The invention is realized by the following technical scheme:
the ABS/PMMA alloy is characterized by comprising the following components in parts by weight:
35-80 parts of ABS resin;
15-60 parts of PMMA resin;
0.1-6 parts of silicone;
0.1-6 parts of silicon rubber.
Preferably, the silicone comprises 1.5-3 parts by weight of silicone rubber and 4-6 parts by weight of silicone rubber.
Generally, silicones having scratch resistance properties have a molecular weight of more than 50 ten thousand.
The silicone is at least one selected from silicone powder and liquid silicone. Generally, silicone powder is a product with a molecular weight of more than 65 ten thousand, and liquid silicone is a product with a molecular weight of 50 to 60 ten thousand.
Silicone rubber refers to rubber having a backbone composed of alternating silicon and oxygen atoms. The silicon atoms in the silicone rubber segment are typically rubbers having two organic groups attached to them. Generally, silicone rubber is composed mainly of silicone segments containing methyl groups and a small amount of vinyl groups. The introduction of phenyl can improve the high and low temperature resistance of the silicone rubber, and the introduction of trifluoropropyl and cyano can improve the temperature resistance and oil resistance of the silicone rubber.
The ABS resin is a terpolymer of acrylonitrile, butadiene and styrene.
The PMMA resin is polymethyl methacrylate and is a high molecular compound formed by polymerizing methyl methacrylate. The invention has no limit on the molecular weight of PMMA, the general range of the number average molecular weight is 10-20 ten thousand, and the product with higher molecular weight is also provided.
And 0-4 parts by weight of at least one of an antioxidant and a lubricant. Can be selected from hindered phenols, phosphites, thio-and composite plastic antioxidants; the lubricant is one or a mixture of zinc stearate, calcium stearate, magnesium stearate, erucamide, ethylene bis-stearamide and mineral white oil.
The preparation method of the ABS/PMMA alloy comprises the following steps: ABS, PMMA, silicone and silicon rubber are uniformly mixed, and are granulated by a double-screw extruder to obtain the ABS/PMMA alloy, wherein the screw temperature is 200-230 ℃.
The invention has the following beneficial effects
According to the invention, through adding the compound silicone, the PMMA part of the alloy can be softened, the compatibility of the silicone rubber and the resin matrix is further improved, the defect that the toughness is extremely reduced after the PMMA is added is relieved under the synergistic effect, and the defect that the surface is soft and the friction resistance is poor after the ABS content is improved is also relieved.
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 raw materials used in the invention are derived from commercial products:
ABS resin-1: ABS H-121H, Ningbo LG Yongxing chemical Co., Ltd.
ABS resin-2: ABS 0215A, medium petroleum gillin petrochemical.
PMMA resin-1: PMMA CM-205, Zhenjiangqi beautification industry, and the molecular weight is less than 200000.
PMMA resin-2: PMMA CM-207, Zhenjiangqi beautification industry, and the molecular weight is less than 200000.
Silicon rubber-1: s-001, Mitsubishi yang, Japan.
Silicon rubber-2: MR-01, Brillouin chemical industries, Japan.
A toughening agent A: MBS type toughener M-521, Nippon Brillouin chemical industry Co.
A toughening agent B: SMA type toughening agent SMA-700, Shanghai Huawen new electronic Material Co., Ltd.
Silicone-1: silicone powder, molecular weight 100W.
Silicone-2: phenyl silicone fluid, molecular weight 50W.
Antioxidant: x-001, hindered amine antioxidant.
Lubricant: EBS B50, ethylene bis stearamide.
Examples and comparative examples preparation of ABS/PMMA alloys: according to the proportion, ABS, PMMA, silicone and silicon rubber (other toughening agents) are uniformly mixed, and are granulated by a double-screw extruder to obtain the ABS/PMMA alloy, wherein the screw temperature is 200-230 ℃.
The performance test method comprises the following steps:
(1) tensile strength: ISO 527, 50 mm/min;
(2) bending strength: ISO 178, 2 mm/min;
(3) notched izod impact strength: molding a notch by injection molding at SO 180, 23 ℃ and 2 mm;
(4) wear resistance: the five-finger scraping method (GMW-14698-B method, 7N).
Table 1: examples ABS/PMMA alloys component ratios and Performance test results
Example 1 Example 2 Example 3 Example 4 Example 5
ABS resin-1 75 75 75 75 75
ABS resin-2 - - - - -
PMMA resin-1 18 18 18 18 18
PMMA resin-2 - - - - -
Silicone rubber-1 2 4 6 6 6
Silicone rubber-2 - - - - -
Silicone-1 1 1.5 1.5 3 5
Silicone-2 - - - - -
Antioxidant agent 0.1 0.1 0.1 0.1 0.1
Lubricant agent 0.1 0.1 0.1 0.1 0.1
Tensile strength, MPa 44.5 46.3 46.5 46.7 45.9
Flexural strength, MPa 64.8 66.6 66.8 67.0 66.2
Notched Izod impact Strength, KJ/m2 11.6 13.8 14.1 14.2 13.6
Wear resistance No scratch No scratch No scratch No scratch No scratch
As can be seen from examples 1 to 5, 1.5 to 3 parts of silicone-based scratch-resistant modifier and 4 to 6 parts of silicone rubber are preferred, and when the amount of the silicone-based scratch-resistant modifier exceeds 3 parts, the mechanical properties begin to decrease.
Table 2: comparative example ABS/PMMA alloy component proportion and various performance test results
Comparative example 1 Comparative example 2 Comparative example 3 Comparative example 4 Comparative example 5 Comparative example 6
ABS resin-1 75 75 75 75 75 75
PMMA resin-1 18 18 18 18 18 18
Silicone rubber-1 - - 5 5 - -
Toughening agent A - - - - 5 -
Flexibilizer B - - - - - 5
Silicone-1 - 1.5 - 10 1.5 1.5
Antioxidant agent 0.1 0.1 0.1 0.1 0.1 0.1
Lubricant agent 0.1 0.1 0.1 0.1 0.1 0.1
Tensile strength, MPa 45.1 44.6 44.2 42.5 43.8 43.7
Flexural strength, MPa 65.4 64.4 63.8 60.9 63.9 63.2
Notched Izod impact Strength, KJ/m2 10.0 9.7 12.7 12.3 12.4 12.3
Wear resistance Severe scratch Slight scratch Severe scratch No scratch No scratch No scratch
From comparative examples 1 to 3, it is understood that the improvement of the abrasion resistance is limited and the mechanical properties are somewhat lowered by adding only silicone; the toughness improvement is not as good as the compounding example with silicone by adding only silicone rubber.
Comparative example 4 shows that the mechanical properties are rather greatly reduced when the amount of silicone added is too large.
It is clear from comparative example 5/6 that the use of other toughening agents does not provide a synergistic effect with silicone and the improvement of mechanical properties is limited.

Claims (8)

1. The ABS/PMMA alloy is characterized by comprising the following components in parts by weight:
35-80 parts of ABS resin;
15-60 parts of PMMA resin;
0.1-6 parts of silicone;
0.1-6 parts of silicon rubber.
2. The ABS/PMMA alloy according to claim 1, characterized in that the silicone is present in an amount of 1.5 to 3 parts by weight and the silicone rubber is present in an amount of 4 to 6 parts by weight.
3. The ABS/PMMA alloy according to claim 1, wherein the silicone has a molecular weight of more than 50 ten thousand.
4. The ABS/PMMA alloy according to claim 1 or 2, wherein the silicone is at least one selected from silicone powder and liquid silicone.
5. The ABS/PMMA alloy according to claim 1 or 2, characterized in that the silicone rubber is a rubber whose main chain is composed of alternating silicon and oxygen atoms.
6. The ABS/PMMA alloy according to claim 1 or 2, characterized in that the ABS resin is a terpolymer of three monomers, namely acrylonitrile, butadiene and styrene.
7. The ABS/PMMA alloy according to claim 1 or 2, characterized in that it also comprises at least one of an antioxidant, a lubricant, 0 to 4 parts by weight.
8. The method for the preparation of an ABS/PMMA alloy according to any one of claims 1 to 7, comprising the steps of: the ABS resin, the PMMA resin, the silicone rubber and the auxiliary agent are uniformly mixed, and the ABS/PMMA alloy is obtained by granulation through a double-screw extruder, wherein the screw temperature is 200-230 ℃.
CN202010061171.0A 2020-01-19 2020-01-19 ABS/PMMA alloy and preparation method thereof Pending CN111154222A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111154210A (en) * 2020-03-11 2020-05-15 成都金发科技新材料有限公司 Toughened scratch-resistant PMMA material and preparation method thereof
CN112126189A (en) * 2020-09-18 2020-12-25 帝欧家居股份有限公司 Scratch-resistant acrylic material and preparation method thereof
CN112745631A (en) * 2020-12-29 2021-05-04 成都金发科技新材料有限公司 Toughened scratch-resistant ABS/PET alloy and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1291897A (en) * 1969-08-06 1972-10-04 Mitsubishi Rayon Co Thermoplastic resin composition having high transparency and high impact strength
CN107778747A (en) * 2017-11-15 2018-03-09 昆山飞奔塑胶模具有限公司 A kind of high light wearable ABS/PMMA composites and preparation method thereof
CN108530822A (en) * 2018-04-29 2018-09-14 何凡 A kind of high transparency ABS resin and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1291897A (en) * 1969-08-06 1972-10-04 Mitsubishi Rayon Co Thermoplastic resin composition having high transparency and high impact strength
CN107778747A (en) * 2017-11-15 2018-03-09 昆山飞奔塑胶模具有限公司 A kind of high light wearable ABS/PMMA composites and preparation method thereof
CN108530822A (en) * 2018-04-29 2018-09-14 何凡 A kind of high transparency ABS resin and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
许家友等: "高光ABS/PMMA的耐磨性", 《塑料》 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111154210A (en) * 2020-03-11 2020-05-15 成都金发科技新材料有限公司 Toughened scratch-resistant PMMA material and preparation method thereof
CN111154210B (en) * 2020-03-11 2022-02-22 成都金发科技新材料有限公司 Toughened scratch-resistant PMMA material and preparation method thereof
CN112126189A (en) * 2020-09-18 2020-12-25 帝欧家居股份有限公司 Scratch-resistant acrylic material and preparation method thereof
CN112126189B (en) * 2020-09-18 2023-12-15 帝欧家居集团股份有限公司 Scratch-resistant acrylic material and preparation method thereof
CN112745631A (en) * 2020-12-29 2021-05-04 成都金发科技新材料有限公司 Toughened scratch-resistant ABS/PET alloy and preparation method thereof
CN112745631B (en) * 2020-12-29 2024-01-09 成都金发科技新材料有限公司 Toughened scratch-resistant ABS/PET alloy and preparation method thereof

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Application publication date: 20200515