Physical Properties
- Bulk Density: Measured for pellets per ISO 60, bulk density is 0.660 g/cc (0.0238 lb/in³), indicating packing density in granular form.
- Density: Determined by ISO 1183, density is 1.20 g/cc (0.0434 lb/in³), a fundamental mass-to-volume property for material characterization.
- Moisture Absorption at Equilibrium: At equilibrium per ISO 62, moisture absorption is 0.12%, ensuring stability in standard humidity conditions.
- Water Absorption at Saturation: As per ISO 62, water absorption at saturation is 0.30%, critical for evaluating material durability in wet environments.
- Water Vapor Transmission: At 0.100 mm thickness (0.00394 in) and 23°C (73.4°F), rate is 15.0 g/m²/day (0.966 g/100 in²/day) at 85% RH (ISO 15106-1).
- Oxygen Transmission: 100 µm film: 650 cc-mm/m²-24hr-atm (1650 cc-mil) per ISO 2556; 25.4 µm film: 2760 cc-mm/m²-24hr-atm (7010 cc-mil).
- Nitrogen Transmission: 100 µm film: 120 cc-mm/m²-24hr-atm (305 cc-mil) per ISO 2556; 25.4 µm film: 510 cc-mm/m²-24hr-atm (1300 cc-mil).
- Carbon Dioxide Transmission: 100 µm film: 3800 cc-mm/m²-24hr-atm (9650 cc-mil) per ISO 2556; 25.4 µm film: 16900 cc-mm/m²-24hr-atm (42900 cc-mil).
- Linear Mold Shrinkage: Ranges 0.0060–0.0080 cm/cm (in/in) parallel/normal per ISO 2577, reflecting dimensional change during molding.
- Linear Mold Shrinkage, Flow: For 60x60x2 mm samples at 500 bar (ISO 294-4/2577), flow shrinkage is 0.0070 cm/cm (0.0070 in/in).
- Linear Mold Shrinkage, Transverse: At 500 bar (ISO 294-4/2577), transverse shrinkage is 0.0050 cm/cm (0.0050 in/in) for molded components.
- Melt Flow: Per ISO 1133, melt flow rate is 10 g/10 min at 300°C (572°F) under 1.20 kg (2.65 lb) load, indicating processability in injection molding.
Polymer Properties:
- Base Material: Polycarbonate (PC)
- Modification Features:
- UV – stable and weather – resistant properties for long – term outdoor use.
- High mechanical strength and toughness.
- Good chemical resistance to environmental factors.
- Good flowability for efficient mass production.
Applications:
Given its properties, Makrolon 2856 is used in applications where durability, clarity, and safety are crucial.
Durable Consumer Goods: The toughness and transparency of this grade make it suitable for items like reusable bottles, food containers, and other household products.
Point-of-Sale Displays: Its high clarity and impact resistance are ideal for display enclosures and covers.
Food Equipment: Compliance with food-contact regulations makes it a good choice for components in food-processing and handling equipment.
