Chi Mei PA-747 Hot Sale ABS Resin
POLYLAC PA-747, manufactured by Chi Mei Corporation, is a high-impact acrylonitrile butadiene styrene (ABS) resin designed for injection molding and extrusion.
Physical Properties
- Density: Measured in line with ISO 1183 using injection – molded samples, the density is 1.03 g/cc (0.0372 lb/in³).
- Linear Mold Shrinkage: Based on ASTM D955 for relevant measurements, it ranges from 0.0030 – 0.0070 cm/cm (0.0030 – 0.0070 in/in).
- Melt Flow: Per ASTM D1238, melt flow is 1.2 g/10 min at 200 °C (392 °F), 5.00 kg (11.0 lb); per ISO – 1133, it’s 13 g/10 min at 220 °C (428 °F), 10.0 kg (22.0 lb).
Polymer Properties:
- Base Material: Acrylonitrile Butadiene Styrene (ABS)
- Modification Features
- Maintains excellent impact resistance even in low – temperature conditions.
- Demonstrates remarkable toughness and strength, ideal for parts subjected to high stress.
- Shows good flowability and stability, suitable for injection molding and extrusion processes.
Applications:
- Home Appliance Sector: Used for the shells and structural components of home appliances such as washing machines, refrigerators, and air conditioners.
- Automotive Industry: Applied in manufacturing automotive interior and exterior parts that demand high impact resistance.
- Electronics Industry: Suitable for components of electronic products like casings, sockets, and switches with high – performance requirements.
- Other High – Strength Requirement Areas: For instance, casings of industrial equipment and toys.
Processing Advantages
POLYLAC® PA-747’s processing characteristics enhance its suitability for these applications:
- Injection Molding and Extrusion Compatibility: Processed at melt temperatures of 220–250°C on standard equipment, ensuring smooth plasticating for both molding and extrusion.
- Demolding Ease: Favorable surface slip properties allow draft angles of 0.5–1° in injection molding, facilitating production of complex parts.
- Surface Quality: Glossy finish achieved at mold temperatures of 60–80°C, ideal for visible components.
- Recycling Potential: Regrind can be reused if free from contamination, supporting sustainability.
Limitations
- UV Sensitivity: ABS is prone to yellowing and brittleness under prolonged UV exposure, making it unsuitable for unpainted exterior applications.
- Chemical Resistance: Offers moderate resistance but may require coatings for exposure to harsh chemicals like acids or alcohols.
- Material Compatibility: Incompatible with most thermoplastics (e.g., polyolefins, polyamides) in the melt, leading to delamination if mixed.
- Non-Food-Grade: Not typically certified for direct food contact, limiting its use in food-related applications.
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