CN113136077A - PMMA/ASA alloy material and preparation method and application thereof - Google Patents

PMMA/ASA alloy material and preparation method and application thereof Download PDF

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Publication number
CN113136077A
CN113136077A CN202110354589.5A CN202110354589A CN113136077A CN 113136077 A CN113136077 A CN 113136077A CN 202110354589 A CN202110354589 A CN 202110354589A CN 113136077 A CN113136077 A CN 113136077A
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Prior art keywords
pmma
alloy material
asa alloy
material according
elastomer
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郝源增
邓爵安
郝建鑫
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Wuhu Selon New Material Technology Co ltd
Guangzhou Super Dragon Engineering Plastics Co ltd
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Wuhu Selon New Material Technology Co ltd
Guangzhou Super Dragon Engineering Plastics Co ltd
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L25/00Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
    • C08L25/02Homopolymers or copolymers of hydrocarbons
    • C08L25/04Homopolymers or copolymers of styrene
    • C08L25/08Copolymers of styrene
    • C08L25/12Copolymers of styrene with unsaturated nitriles
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/08Stabilised against heat, light or radiation or oxydation
    • 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
    • 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 belongs to the technical field of thermoplastic high polymer materials, and particularly discloses a PMMA/ASA alloy material and a preparation method and application thereof. The PMMA/ASA alloy material comprises the following components in percentage by mass: 15-35% of polymethyl methacrylate; the styrene acrylonitrile is 26-65% of a copolymer of styrene acrylonitrile; 2-5% of styrene maleic acid glycoside copolymer; 15-25% of an acrylate elastomer; 3-5% of a compatilizer; 0.1-2% of a lubricant; 0.1-2% of an auxiliary agent. According to the invention, the ratio of PMMA to SAN resin is optimized, so that the defect of low impact toughness of PMMA resin is reduced, and the high temperature resistance stability of the material is improved; the lubricating property among material molecular chains is improved by preferably selecting a proper lubricating agent system, so that the molecular chain regularity of the material after molding is improved, and the linear expansion coefficient of the material is improved.

Description

PMMA/ASA alloy material and preparation method and application thereof
Technical Field
The invention belongs to the technical field of thermoplastic high polymer materials, and particularly relates to a PMMA/ASA alloy material and a preparation method and application thereof.
Background
The PMMA/ASA alloy belongs to an amorphous multicomponent mixed alloy material. The high-gloss and high-colorability acrylic acid alloy combines the characteristics of high gloss and high colorability of polymethyl methacrylate, high rigidity of acrylonitrile, good processability of styrene and high toughness of acrylate rubber, and each component in the alloy has excellent weather resistance. Due to the excellent comprehensive performance, the PMMA/ASA alloy material is widely applied to the fields of decorative parts of automobile interior and exterior trim, building materials, shells of electronic and electric appliances and the like. The material can realize the effects of piano black and high weather resistance of products without a spraying process.
Chinese patent publication CN109337272A discloses a PMMA/ASA synthetic resin composition, which has high gloss and good physical and mechanical properties, and realizes high gloss and high dyeing property of alloy materials mainly through resin selection. The Chinese patent publication CN111117129A discloses a blow molding PMMA/ASA alloy material with high melt strength, which realizes the high melt strength of the material through special rubber powder selection and AS resin selection. Chinese patent publication CN111690222A discloses a highly heat-resistant PMMA/ASA alloy material, which is improved in heat resistance by adding a suitable kind of highly heat-resistant resin. For application scenarios of automotive exterior trim, the material is required to have good impact toughness and dimensional stability. Therefore, the impact strength of the material is improved and the linear expansion coefficient of the material is reduced by the design of the formula components of the material and the optimization of the processing process conditions, so that the material has important significance.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention mainly aims to provide a PMMA/ASA alloy material.
The invention also aims to provide a preparation method of the PMMA/ASA alloy material.
The invention further aims to provide application of the PMMA/ASA alloy material in the fields of automobile exterior trim, household appliances and the like.
The purpose of the invention is realized by the following scheme:
a PMMA/ASA alloy material comprises the following components in percentage by mass:
Figure BDA0003003233740000021
the melt mass flow rate of the PMMA resin is 5-10 g/10min (230 ℃, 3.8 Kg);
preferably, the amount of the PMMA resin is 15 to 35 wt%, and more preferably 20 to 30 wt%.
The PMMA/ASA alloy material is characterized in that: the SAN resin is styrene/acrylonitrile copolymer, and the melt mass flow rate of the SAN resin is 10-20 g/10min (220 ℃, 10Kg)
The addition amount of the SAN resin is 26-65 wt%, wherein the preferred addition amount is 39-49 wt%.
The PMMA/ASA alloy material is characterized in that: the styrene-maleic acid glucoside copolymer (SMA) has a maleic acid glucoside monomer content of more than 20%.
The addition amount of the styrene maleic acid glycoside copolymer (SMA) is 2-5 wt%, and preferably 3 wt%.
The PMMA/ASA alloy material is characterized in that: the acrylate elastomer is an elastomer obtained by copolymerizing (ACM) acrylate serving as a main monomer, the main chain of the acrylate elastomer is a saturated carbon chain, and the side group of the acrylate elastomer is a polar ester group;
the amount of the acrylic elastomer (ACM) added is 15 to 30 wt%, preferably 25 wt%.
The PMMA/ASA alloy material is characterized in that: the compatilizer is ethylene-methyl acrylate-glycidyl methacrylate (EMA-GMA) random terpolymer;
the ethylene-methyl acrylate-glycidyl methacrylate (EMA-GMA) random terpolymer is added in an amount of 3 to 5 wt%, preferably 4 wt%.
The PMMA/ASA alloy material is characterized in that: the lubricant is poly (butyl acrylate-styrene), wherein FC-113 of Aidic is preferred. The butyl acrylate copolymer is introduced mainly to improve the lubricity among molecular chains of the material;
the amount of the lubricant added is 0.1 to 2 wt%, preferably 1 wt%.
The PMMA/ASA alloy material is characterized in that: the auxiliary agent is an antioxidant, toner and the like, and the preferable addition amount is 0.1-1 wt%.
The invention also provides a preparation method of the PMMA/ASA alloy material, which comprises the following steps:
premixing material components of the PMMA/ASA alloy material, adding the material components through a main feeding port of a double-screw extruder, and carrying out melt blending, cooling and granulation to obtain the PMMA/ASA alloy material.
The premixing is preferably carried out in a high-speed stirrer, the mixing temperature is not higher than 60 ℃, the stirring speed is 800-1200 r/min, preferably 1000r/min, and the mixing time is 1-2 min.
The twin screw extruder selected for the present invention was a co-rotating twin screw extruder having a length to diameter ratio of 52/1.
The conditions of the melt blending are preferably that the temperature of each heating section is 200-250 ℃, and the rotating speed of a screw of a main machine is 500-600 r/min.
The PMMA/ASA alloy material has good processing performance, excellent shock resistance and dimensional stability, and can be applied to the fields of automobile exterior decoration, household appliances and the like.
The invention has the characteristics that:
according to the invention, by designing the ratio of PMMA to SAN resin, the defect of low impact toughness of PMMA resin is reduced, and the high temperature resistance stability of the material is improved; the lubricating property among material molecular chains is improved by preferably selecting a proper lubricating agent system, so that the molecular chain regularity of the material after molding is improved, and the linear expansion coefficient of the material is improved.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) the PMMA/ASA alloy material provided by the invention realizes better balance between the toughness and the processing performance of the material, and improves the application performance of the material;
(2) the PMMA/ASA alloy material has lower linear expansion coefficient, thereby reducing the dimensional stability of products in the application process.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
The reagents used in the examples are commercially available without specific reference.
The following examples were processed in the following specific manner: adding materials weighed according to the following formula into a high-speed stirrer, stirring for 2min, then adding the uniformly stirred materials into a hopper of a parallel double-screw extruder with the length-diameter ratio of 52/1, and setting the temperatures of all sections of the extruder from the hopper to a die head as (nine zones in total): the rotating speed of a screw of a main machine is 500r/min at 200-250 ℃, and the rotating speed of a feeding screw of a hopper is 28r/min, so that the materials are blended, melted and extruded; and cooling the strips through a water tank, air-drying the strips, then cutting the strips into granules by using a granulator, and performing injection molding to obtain the target material.
Example one
PMMA resin (CM-205, Qimei) 20 wt%, SAN resin (SAN PN-127, Qimei) 46 wt%, styrene maleic acid glycoside copolymer (SMA26080, POLYSCOPE)3 wt%, ACM elastomer (ACM-24, Nichikoku) 25 wt%, compatibilizer (PTW, DuPont) 4 wt%, lubricant (FC113, Aidicke) 1 wt%, antioxidant (1076, BASF)0.1 wt%, antioxidant (PEP36, Aidicke) 0.2 wt%, carbon black 0.7 wt%. The components are premixed in a high-speed mixing mill, added from a main feeding port of a double-screw extruder, and subjected to melt blending, strip drawing, water cooling, grain cutting and drying to obtain a target product.
Example two
30 wt% of PMMA resin (CM-205, Qimei), 36 wt% of SAN resin (SAN PN-127, Qimei), 3 wt% of styrene maleic acid glycoside copolymer (SMA26080, POLYSCOPE), 25 wt% of ACM elastomer (ACM-24, Nichikoku chemical), 4 wt% of compatilizer (PTW, DuPont), 1 wt% of lubricant (FC113, Aidicke), 0.1 wt% of antioxidant (1076, BASF), 0.2 wt% of antioxidant (PEP36, Aidicke) and 0.7 wt% of carbon black. The components are premixed in a high-speed mixing mill, added from a main feeding port of a double-screw extruder, and subjected to melt blending, strip drawing, water cooling, grain cutting and drying to obtain a target product.
EXAMPLE III
23 wt% of PMMA resin (CM-205, Qimei), 43 wt% of SAN resin (SAN PN-127, Qimei), 3 wt% of styrene maleic acid glycoside copolymer (SMA26080, POLYSCOPE), 25 wt% of ACM elastomer (ACM-24, Nichikoku), 4 wt% of compatilizer (PTW, DuPont), 1 wt% of lubricant (FC113, Aidicke), 0.1 wt% of antioxidant (1076, BASF), 0.2 wt% of antioxidant (PEP36, Aidicke) and 0.7 wt% of carbon black. The components are premixed in a high-speed mixing mill, added from a main feeding port of a double-screw extruder, and subjected to melt blending, strip drawing, water cooling, grain cutting and drying to obtain a target product.
Example four
25 wt% of PMMA resin (CM-205, Qimei), 51 wt% of SAN resin (SAN PN-127, Qimei), 3 wt% of styrene maleic acid glycoside copolymer (SMA26080, POLYSCOPE), 15 wt% of ACM elastomer (ACM-24, Nichikoku), 4 wt% of compatilizer (PTW, DuPont), 1 wt% of lubricant (FC113, Aidicke), 0.1 wt% of antioxidant (1076, BASF), 0.2 wt% of antioxidant (PEP36, Aidicke) and 0.7 wt% of carbon black. The components are premixed in a high-speed mixing mill, added from a main feeding port of a double-screw extruder, and subjected to melt blending, strip drawing, water cooling, grain cutting and drying to obtain a target product.
Comparative example
59 wt% of PMMA resin (CM-205, Qimei), 40 wt% of ASA resin (A600N, UMG), 0.1 wt% of antioxidant (1076, BASF), 0.2 wt% of antioxidant (PEP36, Adeca) and 0.7 wt% of carbon black. The components are premixed in a high-speed mixing mill, added from a main feeding port of a double-screw extruder, and subjected to melt blending, strip drawing, water cooling, grain cutting and drying to obtain a target product.
TABLE 1 Properties of PMMA/ASA alloy materials
Figure BDA0003003233740000051
Figure BDA0003003233740000061
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.

Claims (10)

1. A PMMA/ASA alloy material is characterized by comprising the following components in percentage by mass:
Figure FDA0003003233730000011
2. PMMA/ASA alloy material according to claim 1, characterized in that:
the addition amount of the PMMA resin is 20-30 wt%;
the melt mass flow rate of the PMMA resin is 5-10 g/10 min; 230 ℃ and 3.8 Kg.
3. PMMA/ASA alloy material according to claim 1, characterized in that:
the addition amount of the SAN resin is 39-49 wt%;
the content of maleic anhydride monomer in the SMA is more than 20%.
4. PMMA/ASA alloy material according to claim 1, characterized in that:
the acrylic ester elastomer is an elastomer obtained by copolymerizing acrylic ester serving as a main monomer, the main chain of the elastomer is a saturated carbon chain, and the side group of the elastomer is a polar ester group;
the addition amount of the acrylate elastomer is 25 wt%.
5. PMMA/ASA alloy material according to claim 1, characterized in that:
the compatilizer is ethylene-methyl acrylate-glycidyl methacrylate random terpolymer; the addition amount of the ethylene-methyl acrylate-glycidyl methacrylate random terpolymer is 4 wt%.
6. PMMA/ASA alloy material according to claim 1, characterized in that: the lubricant is poly (butyl acrylate-styrene); the lubricant was added in an amount of 1 wt%.
7. PMMA/ASA alloy material according to claim 1, characterized in that: the other additives are an antioxidant and toner, and the additive amount of the additives is 0.1-1 wt%.
8. The preparation method of the PMMA/ASA alloy material according to any one of claims 1 to 7, which is characterized by comprising the following steps:
premixing material components of the PMMA/ASA alloy material, adding the material components through a main feeding port of a double-screw extruder, and carrying out melt blending, cooling and granulation to obtain the PMMA/ASA alloy material.
9. The method of claim 8, wherein: the premixing is carried out in a high-speed stirrer, the mixing temperature is not higher than 60 ℃, the stirring speed is 800-1200 r/min, and the mixing time is 1-2 min; the twin screw extruder selected was a co-rotating twin screw extruder having a length to diameter ratio of 52/1.
10. The PMMA/ASA alloy material according to any one of claims 1 to 7 is applied to the fields of automobile exterior trim and household appliances.
CN202110354589.5A 2021-04-01 2021-04-01 PMMA/ASA alloy material and preparation method and application thereof Pending CN113136077A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107501829A (en) * 2017-07-13 2017-12-22 宁波泰甬汽车零部件有限公司 A kind of automobile-used resistance to thermal level exempts to spray PMMA/ASA alloys
CN109337272A (en) * 2018-09-13 2019-02-15 广东锦湖日丽高分子材料有限公司 A kind of PMMA/ASA alloy resin composition and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107501829A (en) * 2017-07-13 2017-12-22 宁波泰甬汽车零部件有限公司 A kind of automobile-used resistance to thermal level exempts to spray PMMA/ASA alloys
CN109337272A (en) * 2018-09-13 2019-02-15 广东锦湖日丽高分子材料有限公司 A kind of PMMA/ASA alloy resin composition and preparation method thereof

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
柴春鹏等: "《高分子合成材料学》", 31 January 2019, 北京理工大学出版社 *
王加龙: "《塑料注射成型》", 31 August 2009, 印刷工业出版社 *
王文广: "《聚合物改性原理》", 31 March 2018, 中国轻工业出版社 *

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