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High-heat-resistance polycarbonate (PC)/acrylonitrile styrene acrylate copolymer (ASA) alloy material and preparation method thereof
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An alloy material, high heat resistance technology, applied in the field of high heat resistance PC/ASA alloy material and its preparation, can solve the problem of poor weather resistance of ABS resin
Active Publication Date: 2012-05-09
四川鑫达企业集团有限公司
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Problems solved by technology
ABS resin has excellent comprehensive properties, but because the rubber phase in it is polybutadiene rubber, the rubber phase in ABS resin has unsaturated double bonds, causing factors such as light and oxygen in the air to affect ABS during use. The resin has a strong aging effect, so that the weather resistance of ABS resin is poor
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Embodiment 2
[0071] The main raw materials used in embodiment 2 are as follows:
[0072] PC is PC2805 produced by BAYER Company of Germany; ASA is a mixture of 778T produced by BASF Company of Germany and LI 913 produced by Kumho Company; SAN is PN117 produced by Chimei; α-SAN is a self-made product in the laboratory; compatibilizer 2 is A mixture of graft copolymer of ASA and maleic anhydride (ASA-g-MAH), graft copolymer of styrene and maleic anhydride (SMA).
[0073] The formula in Example 2 was added in proportion to the high-speed mixer and stirred for 4 minutes before being discharged, and then granulated with a twin-screw extruder. The screw speed of the extruder was 150-500 rpm, and the processing temperature was 210°C. -270℃, cooling, drying and pelletizing after extrusion to obtain PC / ASA alloy.
[0085] The main raw materials used in embodiment 3 are as follows:
[0086] PC is PC2805 produced by BAYER Company in Germany; ASA is a mixture of 778T produced by BASF Company in Germany and ASA powder from UMG in Japan; SAN is 368R produced by BASF; α-SAN is a self-made product in the laboratory; compatibilizer 3 is ABS Blend of grafted maleic anhydride (ABS-g-MAH), styrene and graft copolymer of maleic anhydride (SMA).
[0087] The formula in Example 3 was added to the high-speed mixer in proportion and stirred for 4 minutes before being discharged, and then granulated with a twin-screw extruder. The screw speed of the extruder was 150-500 r...
[0099] The main raw materials used in embodiment 4 are as follows:
[0100] PC is PC2805 produced by BAYER Company of Germany; ASA is a mixture of 777K produced by BASF Company of Germany and LI 968W produced by LG Company; SAN is 368R produced by BASF; α-SAN is a self-made product in the laboratory; branched maleic anhydride (ABS-g-MAH).
[0101] The formula in Example 4 was added to the high-speed mixer in proportion and stirred for 4 minutes before being discharged, and then granulated with a twin-screw extruder. The screw speed of the extruder was 150-500 rpm, and the processing temperature was 210°C. -270℃, cooling, drying and pelletizin...
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Abstract
The invention discloses a high-heat-resistance polycarbonate (PC) / acrylonitrilestyreneacrylatecopolymer (ASA) alloy material and a preparation method thereof. The stress cracking performance and the processing performance of a PC can be improved through the mixing of the PC and an ASA resin, and the chemical resistance and the weatherability of the PC are improved. Along with the PC content increase, the impact intensity and the heat deformation temperature of the alloy material are obviously improved. In order to improve the heat resistance of the PC / ASA alloy, alpha-vinyltoluene-acrylonitrile copolymers (alpha-SAN) are used for replacing the styrene-acrylonitrilecopolymer (SAN) phase in the alloy, the heat deformation temperature can be improved to about 140 DEG C, and the heat resistance, the high intensity and the toughness of the PC as well as the weatherability, the chemical resistance and the processing performance of the ASA are integrated in the PC / ASA. Therefore, the PC / ASA alloy can meet the market variation requirements through being used as novel good-performance engineering plastics and has considerable application prospects, and the PC / ASA alloy can be widely used for the fields of electric appliance engineering materials, automobile engineering materials, building plastic products and the like.
Description
technical field [0001] The invention discloses a high heat-resistant PC / ASA alloy material and a preparation method thereof. Background technique [0002] Polycarbonate has outstanding impacttoughness, transparency and dimensional stability, excellent mechanical strength, electrical insulation, wide temperature range, good creep resistance, weather resistance, low water absorption, non-toxic, self-extinguishing , is an engineering plastic with excellent comprehensive properties. Polycarbonate has outstanding thermal stability. Dry PC can be placed in a molten state at 310 ° C for several hours without degradation, and the temperature exceeds 400 ° C before it begins to degrade. Although polycarbonate has many advantages, it also has obvious disadvantages, such as high raw material cost, poor processing fluidity, easy stress cracking, thickness dependence of notched impact strength, intolerance to solvents and hydrolysis, etc., which limit it to some extent. The applicatio...
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