ABS HR2320 is a high-performance styrenic terpolymer designed for improved toughness and heat resistance compared to High Impact Polystyrene (HIPS) grades. It is recognized for its low shrinkage and excellent dimensional stability, making it a preferred choice for general injection molding applications.
 
Key Features
Improved Toughness and Heat Resistance: Offers enhanced material integrity under thermal stress, making it suitable for applications requiring durability at higher temperatures.
Low Shrinkage: Ensures minimal dimensional changes during cooling, which is critical for maintaining the accuracy of the molded parts.
Good Dimensional Stability: Maintains the shape and dimensions of products throughout their usage life, enhancing their functional reliability and aesthetic consistency.
 
Applications
Furniture: Ideal for manufacturing robust furniture components.
Automotive Parts: Suitable for various interior and exterior automotive components that require durability and thermal resistance.
General Injection Molding: Adaptable to a broad range of products requiring precise molding capabilities.
Appliance Casing and Home Appliances: Perfect for appliance housings that must withstand operational heat and mechanical stress.
 
Processing Guidelines
Drying: Recommended drying in a desiccant dehumidifying hopper dryer with an inlet air dew point of -29°C or lower. Typical drying conditions are 2 hours at 180°-190°F (82°-88°C), or alternatively, 4 hours at 160°-170°F (71°-77°C) to achieve a moisture content of 0.1%.
 
Typical Properties
Melt Flow Index (200°C/5kg): 1.2 g/10 min (ASTM D-1238), indicating the material’s flow characteristics during processing.
Izod Impact Strength (Notched): 20 KJ/m² at 23°C (ASTM D-256), demonstrating good toughness.
Vicat Softening Point: 103°C (ASTM D-1525), the temperature at which the polymer begins to soften under a specified load.
Bulk Density: 600 kg/m³, important for handling and storage.
Tensile Strength at Yield: 470 kgf/cm² (ASTM D-638), showing the material’s strength under tension.
Tensile Strength at Break: 450 kgf/cm² (ASTM D-638), indicating how much stress the material can withstand before breaking.
Elongation at Yield: 4% (ASTM D-638), measuring the deformation before yielding.
Elongation at Break: 90% (ASTM D-638), indicating flexibility.
Flexural Strength at Yield: 600 kgf/cm² (ASTM D-790), reflecting the material’s resistance to bending.
Flexural Modulus: 21000 kgf/cm² (ASTM D-790), demonstrating the stiffness of the material.
Heat Deflection Temperature (HDT): 87°C at 0.45 MPa (ASTM D-648), showing the temperature at which the material deforms under load.
Rockwell Hardness: 107 (ASTM D-1238), measuring the hardness of the material.
 
Conclusion
ABS HR2320 is engineered for manufacturers looking for a reliable and efficient material for their injection molding needs. With its superior toughness, low shrinkage, and excellent dimensional stability, HR2320 is a versatile choice for applications across furniture, automotive, and appliance sectors, among others.