PC/ABS alloy material with excellent chemical substance resistance, and preparation method thereof
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An alloy material, chemical resistance technology, applied in the field of PC/ABS alloy material and its preparation, can solve the problems of poor chemical resistance, corrosion, etc., and achieve the effect of excellent hydrophobicity
Inactive Publication Date: 2017-06-16
SHANGHAI KUMHO SUNNY PLASTICS
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Simultaneously this invention utilizes PMMA resin itself to have better scratch resistance, promptly the addition of PMMA resin makes up for the deficiency of the scratch resistance of high-gloss PC / ABS composition, but the chemical resistance of this product is not good, because although PMMA It has certain chemical resistance, but there are still PC phase and ABS phase on the surface, and chemicals can still corrode the surface of the material
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Embodiment 1
[0026] A PC / ABS alloy material with excellent chemical resistance and a preparation method thereof, the method comprising the following steps:
[0028] (2) Mix the components with a mixer and feed them from the main feeding port, melt and extrude at 200-260°C, the screw extruder speed is 500rpm, the pressure is 2MPa, after melt extrusion, granulation to obtain the product .
Embodiment 2
[0030] A PC / ABS alloy material with excellent chemical resistance and a preparation method thereof, the method comprising the following steps:
[0032] (2) Mix the components with a mixer and feed them from the main feeding port, melt and extrude at 200-260°C, the screw extruder speed is 500rpm, the pressure is 2MPa, after melt extrusion, granulation to obtain the product .
Embodiment 3
[0034] A PC / ABS alloy material with excellent chemical resistance and a preparation method thereof, the method comprising the following steps:
[0035] (1) Weigh each component by weight: silicon-containing PC: 60kg; ABS: 40kg; toughening agent: 5; antioxidant: 0.2; lubricant: 0.3;
[0036] (2) Mix the components with a mixer and feed them from the main feeding port, melt and extrude at 200-260°C, the screw extruder speed is 500rpm, the pressure is 2MPa, after melt extrusion, granulation to obtain the product .
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Abstract
The invention relates to a PC / ABS alloy material with excellent chemical substance resistance, and a preparation method thereof. The PC / ABS alloy material comprises, by weight, 60-80 parts of silicon-containing PC resin, 15-40 parts of ABS resin, 5-25 parts of PMMA resin, 0.1-5 parts of a flexibilizer, 0.1-1 part of an antioxidant and 0.1-1 part of a lubricant. The preparation method comprises the following steps: 1, adding the silicon-containing PC resin, the ABS resin, the PMMA resin, the flexibilizer, the antioxidant and the lubricant into a mixing stirrer, and mixing all added materials; and 2, feeding a mixture obtained in step 1 to a double screw extruder through a main feeding opening, and carrying out blend granulation to prepare the PC / ABS alloy material with excellent chemical substance resistance. The silicon-containing PC resin with excellent chemical substance resistance is used, the PMMA resin is added, and the PMMA in a molten state has a lower viscosity than the PC and the ABS and can easily aggregate on the surface of a product in the injection molding process to form a protection layer on the surface of the product in order to improve the chemical substance resistance of the PC / ABS resin.
Description
technical field [0001] The invention belongs to the fields of polymer blending and polymer molding processing, and in particular relates to a PC / ABS alloy material with excellent chemical resistance and a preparation method thereof. Background technique [0002] PC / ABS alloy material has excellent impact resistance, heat resistance and other physical properties, and is widely used in the fields of automobiles and electronic products. In recent years, under the trend of lightweight automobiles and the replacement of steel with plastics, more and more automobile interior and exterior decoration materials have begun to use PC / ABS. In the automotive industry, more and more manufacturers have begun to pay attention to environmental protection and cost reduction, and have begun to abandon the post-treatment process of painting and electroplating, and directly use plastic parts. [0003] Directly exposed plastic parts are easily exposed to some chemicals, such as car glass washer ...
Claims
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