PC/ABS alloy (Polycarbonate/Acrylonitrile Butadiene Styrene) is a thermoplastic blend made by combining polycarbonate (PC) and acrylonitrile butadiene styrene (ABS). This material merges the best properties of both PC and ABS, offering excellent mechanical properties, heat resistance, chemical resistance, and superior processing capabilities.
Features of PC/ABS Alloy
Mechanical Properties: High strength and rigidity while maintaining good toughness, especially at low temperatures.
Heat Resistance: Higher heat resistance than pure ABS, making it suitable for high-temperature environments.
Chemical Resistance: Good resistance to various chemicals.
Processing Properties: Easy to injection mold, with good flow properties and short molding cycles.
Appearance: High surface gloss, making it easy to paint and electroplate.
Applications of PC/ABS Alloy
Automotive Industry: Instrument panels, interior trim components, and exterior parts due to its toughness and heat resistance.
Consumer Electronics: Housings for laptops, mobile phones, and other electronic devices because of its excellent appearance and impact resistance.
Household Appliances: Components of vacuum cleaners, kitchen appliances, and other household gadgets.
Medical Devices: Enclosures and components for medical equipment where durability and chemical resistance are crucial.
Injection Molding Guidance for PC/ABS Alloy
Drying: PC/ABS needs to be properly dried before processing. Typical drying conditions are 80-90°C (176-194°F) for 3-4 hours to avoid moisture-related defects.
Mold Temperature: Optimal mold temperatures range from 50-80°C (122-176°F). Higher mold temperatures can improve surface finish but may increase cycle time.
Injection Pressure: Moderate to high injection pressures are required, depending on the part's geometry and wall thickness.
Injection Speed: Medium to high injection speeds are recommended to ensure proper filling and minimize the risk of defects.
Cooling Time: Adequate cooling time is essential to prevent warping and ensure dimensional stability. Cooling times will vary based on part thickness and mold design.
Processing Temperatures: Barrel temperatures typically range from 230-270°C (446-518°F). It's important to avoid prolonged residence times at high temperatures to prevent degradation.
