Method of manufacturing polycarbonate/vinyl cyanide-butadiene-styrol copolymer alloy

A technology of styrene copolymer and polycarbonate, which is applied in the preparation of polycarbonate/acrylonitrile-butadiene-styrene copolymer alloy and the field of polymer alloy preparation, which can solve the problem of high melt viscosity and thermal deformation Temperature, tensile strength, flexural strength and flexural modulus decrease, notch sensitivity, etc.

Active Publication Date: 2009-02-18
SHANGHAI JIAO TONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polycarbonate has some disadvantages: high melt viscosity, difficult processing and molding, especially large-scale products, prone to stress cracking, high notch sensitivity, solvent resistance, and expensive, so that the application of polycarbonate is restricted. There are certain restrictions, and it is difficult to popularize and apply
[0005] However, many studies on the expansion and toughening of polycarbonate/acryloni

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4

[0036] 1. Preparation of maleic anhydride grafted ethylene-octene copolymer (POE-g-MAH)

[0037] 100 parts by weight of ethylene-octene copolymer, 2 parts by weight of maleic anhydride, 0.1 part by weight of dicumyl peroxide and 0.35 parts by weight of stearic acid are uniformly mixed with a high-speed mixer and then added to a twin-screw extruder for Melt blending, the temperature of the first zone is 160°C, the temperature of the second zone is 165°C, the temperature of the third zone is 170°C, the temperature of the fourth zone is 180°C, the temperature of the fifth zone is 190°C, the temperature of the sixth zone is 200°C, and the temperature of the seventh zone is 200°C, the temperature in the eighth zone is 200°C, the temperature in the ninth zone is 190°C, the screw speed is 250 rpm, and the residence time is 2 minutes. Cooling, drying and pelletizing after extrusion to obtain maleic anhydride grafted ethylene-octene copolymer (POE-g-MAH), the maleic anhydride grafting ...

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PUM

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Abstract

The invention discloses a method for preparing a polyester carbonate/acrylonitrile-butadience-styrene copolymer. The method chooses maleic anhydride grafted ethylene-octene copolymer/organic modified needle-shaped wollastonite compound flexibilizer as raw materials, i.e. both organic and inorganic rigid granular flexibilizers are used, the maleic anhydride grafted ethylene-octene copolymer, organic modified needle-shaped wollastonite and polyester carbonate/acrylonitrile-butadience-styrene copolymer are melted and blended in a double screw extruder to achieve a high-performance alloy material. The polyester carbonate/acrylonitrile-butadience-styrene copolymer prepared by the method has excellent comprehensive mechanical performance and dimensional stability; the notch impact strength is as high as 1050J/m, the elongation at break is 145 percent, the tensile strength reaches 65.5MPa, the bending strength is 96.5MPa, the flexural modulus is up to 2850MPa, and the heat distortion temperature is as high as 115.5 DEG C under high load (1.82MPa). The copolymer is applicable to manufacturing internal and external decorative articles of autos, household appliances, IT products and other industrial products.

Description

technical field [0001] The invention relates to a preparation method of a polymer alloy, in particular to a preparation method of a polycarbonate / acrylonitrile-butadiene-styrene copolymer alloy, which can be used in industries such as automobile interior and exterior decoration parts, home appliances, and IT. The product belongs to the technical field of polymer processing. Background technique [0002] Polycarbonate (PC) is an engineering plastic with excellent performance. It has the advantages of outstanding impact toughness, wide service temperature, good electrical insulation performance and dimensional stability. It has been applied in various industrial sectors, especially in automobiles. The manufacturing industry and the electrical and electronic industry are its two broad markets. However, polycarbonate has some disadvantages: high melt viscosity, difficult processing and molding, especially large-scale products, prone to stress cracking, high notch sensitivity, n...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L51/06C08K13/06C08K9/04B29B9/12B29C47/92B29C47/10C08L55/02B29C48/40B29C48/92
CPCB29C47/92B29C48/92B29C2948/92704B29C48/40B29C2948/92561B29C2948/9259B29C2948/92885B29C2948/92895
Inventor 刘春艳周持兴白雪峰李红军
Owner SHANGHAI JIAO TONG UNIV
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