Polycarbonate/ABS composition, alloy, and preparation method thereof

A technology of polycarbonate and composition, applied in alloy and its preparation, polycarbonate/ABS composition field, can solve the problem that compatibilizer cannot balance impact performance and heat resistance, and achieve high impact performance and heat resistance performance effect

Active Publication Date: 2016-02-10
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] One of the technical problems to be solved by the present invention is the problem that the use of compat...

Method used

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  • Polycarbonate/ABS composition, alloy, and preparation method thereof

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Embodiment 1

[0026] In this embodiment, the selected PC is produced by SABIC Company, with a molecular weight of 5×104g / mol, and ABS (A1) is produced by Sinopec Shanghai Gaoqiao Branch, wherein the N-phenylmaleimide content is 4%. The rubber content is 11%, and the volume average particle size is 1.1 μm. Antioxidant selected phenolic antioxidant 1010.

[0027] Pre-mix PC, A1, and antioxidant, and plasticize, knead, extrude, and pelletize the pre-mixed materials in a LeistrizAGMic-27 co-rotating twin-screw extruder made in Germany at a predetermined plasticizing temperature. The extrusion temperature is 210-300°C. Feed speed: 10kg / h, screw speed: 120rpm, residence time of the raw material in the extruder is 20 seconds. PC was vacuum dried at 120°C for 4 hours before blending and extrusion; A1 was vacuum dried at 80°C for 3 hours.

[0028] The method for measuring the Izod notched impact strength in the present invention is ASTM D256. Heat-resistant temperature measurement method one is ...

Embodiment 2

[0030] Prepare the PC / ABS alloy that improves impact and heat resistance by the step of embodiment 1, condition, test method, just change selected ABS for use. The ABS (A2) used in this example is produced by Sinopec Shanghai Gaoqiao Branch, with an N-phenylmaleimide content of 4%, a rubber content of 14%, and a volume average particle size of 1 μm.

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Abstract

The invention relates to a polycarbonate/ABS alloy with improved impact properties and heat resistance. The polycarbonate/ABS alloy is mainly used for solving a problem of polycarbonate/ABS alloy prepared via the prior art that balance of impact properties and heat resistance is impossible to achieve via using of a compatilizer. The polycarbonate/ABS composition comprises, by weight, a) 50 to 99 parts of polycarbonate with a weight-average molecular weight ranging from 2*10<4> to 8*10<4>g/mol; b) 1 to 50 parts of bulk polymerization ABS containing 1 to 10wt% of N-phenylmaleimide and 5 to 20% of rubber, wherein average particle size of the bulk polymerization ABS ranges from 1 to 10<mu>m; and c) 0.01 to 1 part of an antioxidant. The polycarbonate/ABS composition is prepared via mixing extrusion. The preparation method is capable of solving the problem preferably, and the polycarbonate/ABS composition can be applied in industrial production such as automobile and household electrical appliance polycarbonate/ABS alloy.

Description

technical field [0001] The invention relates to a polycarbonate / ABS composition, an alloy and a preparation method thereof. Background technique [0002] Polycarbonate, or PC, is an engineering plastic with excellent performance. It has the highest impact strength (at 3.17mm) and high heat resistance, transparency, electrical insulation and dimensional stability of all resins, but it The high melt viscosity limits its application as injection molded products. The processing temperature is high, and it is difficult to inject large-scale products. At the same time, because of the high rigidity of the polymer molecular structure, the internal stress of the product is large, and stress cracking is easy to occur. ABS is a mixture of acrylonitrile-styrene-butadiene, which has the advantages of low melt viscosity and good resistance to stress cracking. Therefore, blending PC and ABS can obtain plastic products with excellent processability and impact performance. [0003] Adding...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L55/02B29C47/92B29C48/92
Inventor 胡圳白瑜
Owner CHINA PETROLEUM & CHEM CORP
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