Preparation of PC/ABS alloy

A technology of alloy and polycarbonate, which is applied in the field of PC/ABS alloy preparation, can solve the problems of difficult compatibility of polybutadiene, decline in physical properties, poor compatibility, etc., and achieve high heat resistance, improved processing performance, The effect of reducing internal stress

Inactive Publication Date: 2005-02-16
上海普利特伴泰材料科技有限公司 +5
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the simple blend of PC / ABS has the disadvantage of poor compatibility
The solubility parameters of SAN in PC and ABS are relatively close, PC is 9.8(cal / cm3)0.5, SAN is 9.3-9.6(cal / cm3)0.5, the compatibility of SAN and PC is better, however, PC and polybutadiene in ABS are difficult to be compatible, which will cause a weak connection between them, so that the physical properties decline

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The weight ratio of PC is 44.2%, the weight ratio of ABS is 50%, the weight ratio of ABS / PP-g-MAH is 5%, the weight ratio of 1010 / 168 is 0.1 / 0.2%, and the weight ratio of EBS is 0.5%. Mix the above components at room temperature, and then produce them in a twin-screw extruder. The processing conditions are: the temperature of the first zone is 235°C, the temperature of the second zone is 245°C, the temperature of the third zone is 250°C, the temperature of the fourth zone is 250°C, and the temperature of the fifth zone is 250°C. The temperature is 250°C, the temperature in the sixth zone is 245°C; the residence time is 2 minutes, the speed of the main engine is 450 rpm, and the pressure is 15Mpa.

Embodiment 2

[0033] The weight ratio of PC is 54.2%, the weight ratio of ABS is 40%, the weight ratio of ABS / PP-g-MAH is 5%, the weight ratio of 1010 / 168 is 0.1 / 0.2%, and the weight ratio of EBS is 0.5%. Use a high-speed mixer to dry mix at room temperature, and then produce in a twin-screw extruder. The processing conditions are: the temperature of the first zone is 235°C, the temperature of the second zone is 245°C, the temperature of the third zone is 250°C, the temperature of the fourth zone is 250°C, and the temperature of the fifth zone 250°C, the temperature in the sixth zone is 245°C; the residence time is 2 minutes, the speed of the main engine is 450 rpm, and the pressure is 15Mpa.

Embodiment 3

[0035] The weight ratio of PC is 64.2%, the weight ratio of ABS is 30%, the weight ratio of ABS / PP-g-MAH is 5%, the weight ratio of 1010 / 168 is 0.1 / 0.2%, and the weight ratio of EBS is 0.5%. Use a high-speed mixer to dry mix at room temperature, and then produce in a twin-screw extruder. The processing conditions are: the temperature of the first zone is 235°C, the temperature of the second zone is 245°C, the temperature of the third zone is 250°C, the temperature of the fourth zone is 250°C, and the temperature of the fifth zone 250°C, the temperature in the sixth zone is 245°C; the residence time is 2 minutes, the speed of the main engine is 450 rpm, and the pressure is 15Mpa.

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PUM

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Abstract

This invention refers to a kind of preparation method of PC/ABS alloy, adopts ABS/PP-g-MAH as the compatiblizing agent of PC/ABS and is composed of polycarbonate, acrylonitrile-styrene- butadiene copolymer (ABS), ABS/PP grafts, antioxidant, lubricant and other auxiliary agents. We mix them in double-screwed extruder, discharges, extrudes, cools, dries, granulates and gets the turnoff. The invention is characterized with good mechanical properties, processing propertyies and high thermal endurance and is adaptable to injection molding.

Description

technical field [0001] The invention relates to the preparation of a PC / ABS alloy, which can be used for vehicle parts, home appliance parts, etc., and belongs to the technical field of polymer materials. Background technique [0002] PC has good transparency, high heat resistance, good light stability, and good dimensional stability. It is the engineering plastic with the best toughness, but it is sensitive to gaps, high internal stress, high melt viscosity, poor fluidity, and difficult to form. [0003] ABS resin is a general-purpose thermoplastic resin with excellent impact resistance and good molding and processing properties. It has a high performance / price ratio, is easy to electroplate and machine, and has good dimensional stability. Poor sex. [0004] The blend of PC and ABS resin as the main raw material is an important engineering plastic alloy. This material has good molding flow properties and can be used to form large-area and complex products. It has good low-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08L69/00
Inventor 张祥福黄俊生周文
Owner 上海普利特伴泰材料科技有限公司
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