CN108440892B - ABS/polyester alloy material and preparation method and application thereof - Google Patents
ABS/polyester alloy material and preparation method and application thereof Download PDFInfo
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- CN108440892B CN108440892B CN201810145724.3A CN201810145724A CN108440892B CN 108440892 B CN108440892 B CN 108440892B CN 201810145724 A CN201810145724 A CN 201810145724A CN 108440892 B CN108440892 B CN 108440892B
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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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention discloses an ABS/polyester alloy material and a preparation method and application thereof, wherein the ABS/polyester alloy material comprises the following components: 50-80 parts of styrene-butadiene-acrylonitrile resin; 10-65 parts of polyester resin; high damping elastomer: 1.0-15 parts. According to the invention, polyester and high damping rubber are introduced into an ABS system, the prepared ABS/polyester alloy material has excellent environmental stress cracking resistance while having a noise reduction effect, can be used for various plastic parts instead of ABS, HIPS or PC/ABS, can effectively reduce the noise emitted by a part, can greatly improve the environmental stress cracking resistance of the part, solves the problems of water leakage, cracking and the like caused by the problems, and has remarkable technical and market values.
Description
Technical Field
The invention belongs to the field of high polymer materials, and particularly relates to an ABS/polyester alloy material and a preparation method and application thereof.
Background
Plastics are widely applied to the fields of household appliances, electronic appliances, electric tools, automobiles and the like, but the use experience of customers is influenced because plastic parts can generate unpleasant noises such as 'squeaking' and the like under the conditions of change, assembly, stress and the like of ambient temperature. To solve this problem, the common solution consists of applying a fleece, rubber or grease during the assembly process. Although these methods can reduce noise to some extent, they are complicated in process, high in labor cost, and difficult to ensure the effect with time. In addition, with the improvement of living standard of people, plastic parts are often contacted with solvents such as various cosmetics, edible oil, cleaning agents and the like, and the problems of environmental stress cracking and the like easily occur in amorphous materials such as ABS, PC/ABS and the like in the long-term use process, so that the normal functions of the parts are influenced.
Chinese patent CN106751687 discloses a noise-reducing and silencing PC/ABS alloy material and a preparation method thereof, which improves the viscoelasticity characteristic of the PC/ABS alloy by introducing high-damping silicone rubber, reduces the noise risk of PC/ABS plastic products and achieves the purposes of noise reduction and silencing. Chinese patent CN107325514 discloses a noise-reducing PC/ABS alloy and a preparation method thereof, wherein polyurethane is selected as a noise-reducing modifier, so that the damping coefficient of the material is improved, and the noise of the material in the friction process is reduced. Chinese patent CN201710012573 discloses a preparation method of a high-damping silicone rubber modified ABS sound insulation material based on low-frequency noise protection. Acrylonitrile-butadiene-styrene terpolymer (ABS) is used as a main body material, self-made polyurethane foaming prepolymer is added into the ABS main body material, and the sound insulation material prepared by mixing the polyurethane foaming prepolymer and the ABS has obvious sound insulation honeycombs and plays a good role in back-and-forth friction of sound. The high-damping silicone rubber modified ABS sound insulation material is prepared by selecting high-damping silicone rubber with good dissipation effect on low-frequency noise at room temperature and natural halloysite nanotubes as modified materials.
It is worth noting that the prior art mainly focuses on the realization of the noise reduction function of the material, but the material is still easy to crack under the action of the solvent, and the application range of the material is greatly limited. For example, materials used in common household electrical appliance parts are important for their noise reduction and resistance to common solvents.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention mainly aims to provide a low-noise ABS/polyester alloy material with environmental stress resistance.
The invention also aims to provide a preparation method of the ABS/polyester alloy material.
The invention is realized by the following technical scheme:
an ABS/polyester alloy material and a preparation method thereof, which comprises the following components by weight:
50-80 parts of styrene-butadiene-acrylonitrile resin;
10-65 parts of polyester resin;
1.0 to 15 portions of high damping elastomer.
The polyester resin is one or a mixture of more of polybutylene terephthalate resin PBT, polyethylene terephthalate PET, poly 1, 4-cyclohexanedimethanol terephthalate PCT, polytrimethylene terephthalate PTT, poly 1, 4-cyclohexanedimethanol terephthalate PETG, poly 1, 4-cyclohexanedimethanol terephthalate PCTG, poly 1, 4-cyclohexanedimethanol terephthalate PCTA or polymethyl methacrylate PMMA, preferably polyethylene terephthalate PET or polybutylene terephthalate resin PBT.
The mass ratio of the styrene-butadiene-acrylonitrile resin to the polyester resin is 6: 1-1: 1, preferably 3: 1-1.5: 1.
the mass ratio of the polyester resin to the high-damping elastomer is 5: 1-1: 1.
the high damping elastomer is one or a mixture of more of organic silicon rubber, ethylene-methyl acrylate-glycidyl methacrylate, ethylene-butyl acrylate-glycidyl methacrylate or polyurethane resin (such as WHT-1290).
The molecular main chain of the organic silicon rubber contains a structural unit (-Si-O-Si-) consisting of silicon atoms and oxygen atoms alternately, and the particle size of the organic silicon rubber is preferably 100-900 nm.
According to the actual performance requirement, the ABS/polyester alloy material also comprises a compatibilizer 0.5 in parts by weight
8 to 0.1 to 3 parts of antioxidant, 0.1 to 3 parts of lubricant and 0.1 to 3 parts of nucleating agent.
The compatibilizer is one or a mixture of a plurality of styrene-acrylonitrile-glycidyl methacrylate, styrene-acrylonitrile-maleic anhydride copolymer, ethylene-acrylate-glycidyl ester copolymer, ethylene-glycidyl ester or ethylene-n-butyl acrylate-glycidyl ester copolymer.
The antioxidant is one or more of hindered phenol antioxidant or phosphite antioxidant, such as antioxidant 1010 and antioxidant 168.
The nucleating agent is one or a mixture of more of vinyl acetate-vinyl acetate copolymer, ionomer, nano montmorillonite or nano talcum powder, and specifically comprises honeywell 295A, SURLYN 8920 and the like.
The lubricant is one or more of vinyl bis stearamide, polysiloxane, calcium stearate, magnesium stearate, zinc stearate, PE wax, PP wax, ABS wax or ethylene bis stearamide, such as vinyl bis stearamide EBS.
The invention also provides a preparation method of the ABS/polyester alloy material, which comprises the following steps:
uniformly mixing styrene-butadiene-acrylonitrile resin, polyester resin and high-damping elastomer, performing melt blending extrusion on a mechanical device, and performing underwater granulation and drying to obtain the ABS/polyester alloy material.
Wherein the processing temperature of the mechanical device is 120-280 ℃, and the rotating speed is 50-600 rpm.
The mechanical device can be a double-screw extruder, an internal mixer and the like, for example, the double-screw extruder is adopted, the temperature of the first zone to the second zone is 120-190 ℃, the temperature of the third zone to the fifth zone is 200-280 ℃, the temperature of the fifth zone to the fifth zone is 200-240 ℃, and the rotating speed of the screw is 350-450 rpm.
The invention also provides application of the ABS/polyester alloy material in household plastic parts (such as air conditioner bottom shells).
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, polyester and high damping rubber are introduced into an ABS system, the prepared ABS/polyester alloy material has excellent environmental stress cracking resistance while having a noise reduction effect, can be used for various plastic parts instead of ABS, HIPS or PC/ABS, can effectively reduce the noise emitted by a part, can greatly improve the environmental stress cracking resistance of the part, solves the problems of water leakage, cracking and the like caused by the problems, and has remarkable technical and market values.
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 and 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 examples and comparative examples are now described below, but are not limited to these materials:
the antioxidant is 1010 and 168 produced by CIBA company;
the nucleating agent is 295A produced by Honeywell company;
the lubricant is vinyl bis stearamide EBS B50;
the compatibilizer is styrene-acrylonitrile-glycidyl methacrylate, and is preferably easy to SAG;
styrene-butadiene-acrylonitrile resin (ABS resin) is ABS DG-MG29 of Tianjin staphyl;
high damping elastomer:
the polyurethane is WHT-1290 in Wanhua chemistry;
silicone rubber, commercially available, with a particle size of 100-500 nm;
polyester resin:
PET resin, commercially available;
PBT resin, commercially available;
PCT resin, commercially available;
PETG resin, commercially available.
Examples 1-8 and comparative examples 1-5:
the components are uniformly mixed according to the mixture ratio in the table 1, the components are subjected to melt blending extrusion in a double-screw extruder, and the ABS/polyester alloy material is obtained after underwater grain cutting and drying, wherein the performance test result is shown in the table 2; wherein the temperature of the first zone to the second zone of the double-screw extruder is 120-190 ℃, the temperature of the third zone to the fifth zone is 200-280 ℃, the temperature of the fifth zone to the tenth zone is 200-240 ℃, and the rotating speed of the screw is 350-450 rpm.
The notch impact strength is tested according to the ISO 180 standard, and the notch type is A type;
the tensile strength is tested according to ISO 527 standard, and the tensile speed is 50 mm/min;
the bending strength is tested according to ISO 178 standard, and the bending speed is 2 mm/min;
stress cracking time: the testing solvent is glacial acetic acid (>99%), and the flexibility of the testing clamp is 2.54 cm; the sample strip was bent following the shape of the jig and fixed to the test jig by screws. Glacial acetic acid was then added dropwise in the middle of the bars while the cracking time of the bars was recorded using a stopwatch.
Evaluation of noise: placing a 10cm by 10cm plastic plate on the platform of the testing machine, and placing another plastic plate with the plastic plate at 75 deg.CoThe corner is vertically placed, a load of 2kg is added on the vertically placed plastic plate, the motor is started to enable the vertical plastic plate to reciprocate, and meanwhile, the sound wave sensor is used for recording a specific noise value.
TABLE 1 concrete compounding ratio (parts by weight) of each component in each example and comparative example
TABLE 2 Performance test data for each of the examples and comparative examples
As can be seen from comparative examples 1-2 of Table 1, the environmental stress resistance of both the conventional ABS and the ABS material with the high damping elastomer added thereto is poor, and the cracking time under the current test conditions is several tens of seconds. The embodiment of the invention can find that the ABS/polyester alloy material prepared according to the invention has excellent environmental stress cracking resistance and can effectively reduce the sound production level of the material.
Claims (9)
1. The ABS/polyester alloy material is characterized by comprising the following components in parts by weight:
50-80 parts of styrene-butadiene-acrylonitrile resin;
10-65 parts of polyester resin;
6.0 to 15 portions of high-damping elastomer;
the mass ratio of the polyester resin to the high-damping elastomer is 5: 1-1: 1;
the high damping elastomer is organic silicon rubber;
the mass ratio of the styrene-butadiene-acrylonitrile resin to the polyester resin is 6: 1-1: 1;
the molecular main chain of the organic silicon rubber contains a structural unit consisting of silicon atoms and oxygen atoms alternately, and the particle size is 100-900 nm.
2. The ABS/polyester alloy material as claimed in claim 1, wherein the polyester resin is one or a mixture of PBT (polybutylene terephthalate), PET (polyethylene terephthalate), PCT (1, 4-cyclohexanedimethanol), PTT (polytrimethylene terephthalate), PETG (polyethylene terephthalate-1, 4-cyclohexanedimethanol), PCTG (PCTA), PCTA (1, 4-cyclohexanedimethanol) or PMMA (polymethyl methacrylate).
3. The ABS/polyester alloy material according to claim 2, wherein the polyester resin is polyethylene terephthalate (PET) or polybutylene terephthalate (PBT).
4. The ABS/polyester alloy material according to claim 1, wherein the mass ratio of the styrene-butadiene-acrylonitrile resin to the polyester resin is 3: 1-1.5: 1.
5. the ABS/polyester alloy material of claim 1, further comprising 0.5 to 8 parts by weight of a compatibilizer, 0.1 to 3 parts by weight of an antioxidant, 0.1 to 3 parts by weight of a lubricant, and 0.1 to 3 parts by weight of a nucleating agent.
6. The ABS/polyester alloy material as claimed in claim 5, wherein the compatibilizer is one or more of styrene-acrylonitrile-glycidyl methacrylate, styrene-acrylonitrile-maleic anhydride copolymer, ethylene-acrylate-glycidyl ester copolymer, ethylene-glycidyl ester or ethylene-n-butyl acrylate-glycidyl ester copolymer; the antioxidant is one or a compound of more of hindered phenol antioxidant or phosphite antioxidant; the nucleating agent is one or a mixture of more of vinyl acetate-vinyl acetate copolymer, ionomer, nano montmorillonite or nano talcum powder; the lubricant is one or a mixture of more of vinyl bis stearamide, polysiloxane, calcium stearate, magnesium stearate, zinc stearate, PE wax, PP wax, ABS wax or ethylene bis stearamide.
7. The preparation method of the ABS/polyester alloy material according to any of claims 1-6, characterized by comprising the following steps:
uniformly mixing styrene-butadiene-acrylonitrile resin, polyester resin and high-damping elastomer, performing melt blending extrusion on a mechanical device, and performing underwater granulation and drying to obtain the ABS/polyester alloy material.
8. The preparation method of the ABS/polyester alloy material according to claim 7, wherein the processing temperature of the mechanical device is 120-280 ℃, and the rotation speed is 50-600 rpm.
9. Use of the ABS/polyester alloy material according to any one of claims 1 to 6 in plastic parts for household appliances.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110317435B (en) * | 2019-06-20 | 2021-09-17 | 上海金发科技发展有限公司 | Multifunctional cold-resistant low-odor composite material and preparation method thereof |
| CN111534038B (en) * | 2019-12-23 | 2022-05-27 | 会通新材料股份有限公司 | Self-lubricating ABS material with wide temperature range and high damping and preparation method thereof |
| CN111925622A (en) * | 2020-08-25 | 2020-11-13 | 佳易容聚合物(上海)有限公司 | HIPS (high impact polystyrene) composite material with excellent chemical resistance and preparation method thereof |
| CN112694734B (en) * | 2020-12-15 | 2023-02-14 | 上海金发科技发展有限公司 | Noise-reducing, low-temperature-impact-resistant, damp-heat-aging-resistant PC/ASA resin composition and preparation method thereof |
| CN112920537B (en) * | 2021-02-01 | 2022-10-21 | 海信空调有限公司 | Preparation method of HIPS composite material, flow guide plate and air conditioner |
| CN113214596A (en) * | 2021-06-23 | 2021-08-06 | 广东虹勤通讯技术有限公司 | Plastic material |
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| CN106751687A (en) * | 2016-12-29 | 2017-05-31 | 上海锦湖日丽塑料有限公司 | A kind of PC/ABS alloy materials of noise-reduction and preparation method thereof |
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| CN102532783B (en) * | 2010-12-16 | 2015-06-24 | 合肥杰事杰新材料股份有限公司 | High-fluidity acrylonitrile butadiene styrene/polybutylece terephthalate (ABS/PBT) alloy material and preparation method thereof |
| CN103524987A (en) * | 2012-07-02 | 2014-01-22 | 青岛欣展塑胶有限公司 | ABS/PBT (acrylonitrile-butadiene-styrene/polybutylece terephthalate) alloy material with improved impact property |
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| CN106751687A (en) * | 2016-12-29 | 2017-05-31 | 上海锦湖日丽塑料有限公司 | A kind of PC/ABS alloy materials of noise-reduction and preparation method thereof |
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Effective date of registration: 20211215 Address after: 124000 Liaodongwan New District, Panjin City, Liaoning Province Patentee after: Liaoning Baolai New Material Co.,Ltd. Address before: 510663 Guangzhou science and Technology Development Zone, Guangdong, China, 33 Patentee before: KINGFA SCI. & TECH. Co.,Ltd. |
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