Physical Properties
- Specific Gravity: Measured via ASTM D792, the material’s specific gravity is 1.19 g/cc, aligning with its density properties.
- Density: Per ISO 1183, the density is 1.19 g/cc (0.0430 lb/in³), reflecting consistent mass-to-volume characteristics.
- Water Absorption: ASTM D570 shows 0.14% after 24 hours; ISO 62 records 0.26% at 23°C/saturated, indicating moisture sensitivity.
- Moisture Absorption: Under 23°C/50% RH (ISO 62), the material absorbs 0.100%, suitable for moderate humidity environments.
- Linear Mold Shrinkage, Flow: By SABIC method, flow-direction shrinkage is 0.0050–0.0070 cm/cm (0.0050–0.0070 in/in) for 3.20 mm (0.126 in) thickness.
- Linear Mold Shrinkage, Transverse: SABIC method yields 0.0050–0.0070 cm/cm (0.0050–0.0070 in/in) transversely at 3.20 mm (0.126 in) thickness.
- Melt Flow: ISO 1133 measures 10 g/10 min at 300°C/1.20 kg; ASTM D1238 shows 10.5 g/10 min under identical conditions.
Polymer Properties:
- Base Material: Polycarbonate (PC)
- Modification Features:
- Medium flow for easy processing in medical device manufacturing.
- Biocompatible, meeting ISO10993 or USP Class VI standards.
- Sterilizable by EtO, steam, e – beam, and gamma methods.
- Contains mold release for smooth part ejection.
Applications:
Due to its properties, LEXAN HPS4 PC is used for various components in the medical field, including:
- Surgical Devices and Instruments: Housings, handles, and components for reusable and disposable surgical tools.
- Fluid and Drug Delivery: Parts for IV therapy, fluid delivery systems, and drug delivery devices.
- Renal and Blood Handling: Components in dialysis machines and blood collection/processing equipment.
- Diagnostic and Labware: Housings and covers for clinical diagnostic equipment and laboratory consumables.
