PC / ABS alloy material with no weld line and no spraying and metal texture and preparation method thereof

By adding chain extender, carbon fiber and metal powder to the PC/ABS alloy material and using a twin-screw extruder for treatment, the flow marks and welded wire defects of the spray-free metal texture material are solved, and a high-strength and good appearance halogen-free flame-retardant PC/ABS alloy material is achieved, achieving the effect of replacing steel with plastic.

CN115819947BActive Publication Date: 2025-03-25CHONGQING ORINKO TECH CO LTD CHINA
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Patent Information

Application Number
CN202211594444.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-13
Publication Date
2025-03-25
Estimated Expiration
2042-12-13

AI Technical Summary

Technical Problem

The existing spray-free metal texture materials have flow marks and welded wire defects, and are insufficient in strength and toughness, making it difficult to replace metal materials.

Method used

By adding chain extender, carbon fiber and metal powder to the PC/ABS alloy material, shearing and melting plasticizing is performed using a twin-screw extruder to form a uniform melt state, eliminating flow marks and welding line defects, and improving the strength and toughness of the material.

Benefits of technology

The high strength, good appearance and environmental performance of carbon fiber-reinforced halogen-free flame-retardant PC/ABS alloy material has been achieved, and the flow marks and welded wire defects of traditional materials have been successfully solved, achieving the effect of replacing steel with plastic.

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Abstract

The invention discloses a PC / ABS alloy material with no weld line and spray-free metal texture, which is prepared by 45-75 parts of polycarbonate, 5-8 parts of acrylonitrile-butadiene-styrene copolymer, 10-16 parts of flame retardant, 5-8 parts of toughening agent, 10-20 parts of carbon fiber, 0.2-2 parts of chain extender, 0.5-2 parts of metal powder, 0.1-0.6 parts of anti-dripping agent, 0.2-0.6 parts of lubricant, and 0.1-0.6 parts of antioxidant according to mass fractions. The present invention adds a chain extender in the system to improve the flow mark defect in the injection molding process and the low brittleness of the material decomposition impact caused by the metal powder, adds metal powder to make it have a metallic texture appearance, adds carbon fiber to improve its strength and modulus, and makes it have strength and rigidity close to that of metal materials; thereby realizing the use of plastic instead of steel in appearance and performance.
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