PC/ABS injection molding material characteristics and processing technology

PC/ABS Polycarbonate and Acrylonitrile Butadiene Styrene Copolymers and Mixtures: Typical Applications: Computer and Commercial Machine Housings, Electrical Equipment, Lawn Gardening Machines, Auto Parts Dashboards, Interior Finishes, and Wheel Covers.
Injection Molding Process Conditions: Drying: Drying before processing is a must. The humidity should be less than 0.04%. The recommended drying conditions are 90~110C for 2~4 hours. Melting temperature: 230~300C. Mold temperature: 50~100C. Injection pressure: depending on the plastic part. Injection speed: as high as possible.
Chemical and physical properties: PC/ABS has the combined properties of both PC and ABS. For example, the easy processing characteristics of ABS and the excellent mechanical properties and thermal stability of PC. The ratio of the two will affect the thermal stability of the PC/ABS material. The mixed material of PC/ABS also shows excellent flow characteristics. The shrinkage rate is around 0.5%.
PC Polycarbonate Typical applications: electrical and commercial equipment (computer components, connectors, etc.), appliances (food processors, refrigerator drawers, etc.), transportation industry (vehicle front and rear lights, dashboards, etc.).
Injection Molding Process Conditions: Drying: PC materials are hygroscopic, and drying before processing is important. Dry conditions are recommended from 100C to 200C for 3 to 4 hours. The humidity before processing must be less than 0.02%. Melting temperature: 260~340C. Mold temperature: 70~120C. Injection pressure: Use high injection pressure as much as possible. Injection speed: low speed injection for smaller gates and high speed injection for other types of gates.
Chemical and physical properties: PC is an amorphous engineering material with exceptional impact strength, thermal stability, gloss, bacterial inhibition, flame retardant properties and stain resistance. The PC's notch Imagine impact strength is very high, and the shrinkage rate is very low, generally 0.1% to 0.2%. PC has good mechanical properties, but its flow characteristics are poor, so the injection molding process of this material is difficult.