ABS composite resistant to high and low temperatures and chemicals and preparation method of ABS composite
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A chemical resistance, high and low temperature resistance technology, applied in the field of ABS composite materials and its preparation, to achieve excellent comprehensive performance, easy large-scale industrial production, and improve the effect of solvent resistance
Inactive Publication Date: 2018-09-14
GUANGDONG JUSHI CHEM CO LTD
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It can be seen that the existing composite materials cannot meet the requirements of good chemical resistance, high and low temperature resistance and other comprehensive properties at the same time.
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[0039] The preparation method of the above-mentioned high and low temperature resistant and chemical resistant ABS composite material comprises the following steps: After drying each raw material, add it to a high-speed mixer and mix evenly, then transfer it to a twin-screw extruder, extrude, cool, granulate, and dry, Obtain high and low temperature resistant, chemical resistant ABS composite materials.
[0040] Preferably, the temperature of each temperature zone of the twin-screw extruder is between 180-230° C., the feeding speed is 12-24 r / min, and the main engine speed is 250-350 r / min.
Embodiment 1～6 and comparative example 1～3
[0043] The composition of the raw materials of the ABS composite materials prepared in Examples 1 to 6 and Comparative Examples 1 to 3 is shown in Table 1, and the preparation method is as follows: dry each raw material at 80°C for 3 hours, then add it to a high-speed mixer, and adjust the speed of the mixer to 500r / min, stirred for 5 min, then transferred to a twin-screw extruder, extruded, cooled, granulated, and dried to obtain an ABS composite material.
[0044] Dry the ABS composite material first, then injection molding (injection molding process conditions: nozzle temperature is 240°C, temperature in each zone is 240°C, 235°C, 230°C, pressure holding time is 2-4s, injection pressure is 40- 60MPa.) is the standard test sample, and the performance test is carried out, and the test results are shown in Table 2.
[0045] The raw material composition table of the ABS composite material of table 1 embodiment 1~6 and comparative examples 1~3
[0046]
[0047] Note:
[00...
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Abstract
The invention discloses an ABS composite resistant to high and low temperatures and chemicals and a preparation method of the ABS composite. The ABS composite is composed of the following components in percentage by mass: 51%-77.5% of ABS resin, 10%-20% of polyketone resin, 6%-15% of thermoplastic polyester elastomer, 3%-5% of compatilizer, 3%-8% of toughening agent, 0.2%-0.5% of antioxidant and 0.3%-0.5% of lubricant. The preparation method of the ABS composite is as follows: drying all the raw materials, then, adding the raw materials into a high-speed mixer for uniform mixing, then, transferring the mixture into a double-screw extruder, and carrying out extrusion, cooling, granulation and drying. The ABS composite disclosed by the invention is high in low-temperature notch impact strength (higher than 500J / M) and tensile strength and excellent in chemical resistance, has the heat deflection temperature of higher than 100 DEG C and can be widely applied to the fields such as domesticappliance shells, kitchen appliances and automobile materials with severe using environment requirements; and the preparation method is simple and easy to realize large-scale industrial production.
Description
technical field [0001] The invention relates to an ABS composite material resistant to high and low temperature and chemical resistance and a preparation method thereof, belonging to the technical field of polymer materials. Background technique [0002] Acrylonitrile-butadiene-styrene (ABS) resin is a thermoplastic polymer material with high strength, good toughness, and easy processing and molding. It is widely used in electronics, home appliances, automobiles, construction, daily necessities and other fields. However, the heat resistance of ABS is average (heavy-load heat distortion temperature is only 82°C), and the solvent resistance is poor, which leads to high-temperature softening deformation and contact with chemicals when it is used in home appliance casings, kitchen appliances, automotive materials and other products. Problems such as bulge cracking. At present, the heat resistance of ABS is mainly improved by blending ABS and PC, and the heat distortion temperat...
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