Polycarbonate (PC) Datasheet (General Overview)
Chemical Structure:
- Polymer Type: Thermoplastic polymer
Physical Properties:
- Density: 1.2 – 1.22 g/cm³
- Transparency: Excellent optical clarity
- Refractive Index: 1.585
- Light Transmission: Up to 90%
- Water Absorption: 0.15 – 0.3%
Mechanical Properties:
| Property | Value |
|---|---|
| Tensile Strength | 60 – 75 MPa (8,700 – 10,875 psi) |
| Yield Strength | 65 – 70 MPa (9,400 – 10,150 psi) |
| Elongation at Break | 70 – 120% |
| Young’s Modulus | 2,100 – 2,500 MPa (304,500 – 362,500 psi) |
| Hardness (Rockwell M) | 75 – 80 |
Thermal Properties:
- Glass Transition Temperature (Tg): ~150°C (302°F)
- Heat Deflection Temperature (HDT): 130 – 140°C (266 – 284°F)
- Coefficient of Thermal Expansion: 65 – 70 x 10^(-6) /°C
Electrical Properties:
- Dielectric Strength: 20 – 30 kV/mm
- Volume Resistivity: 10^15 – 10^17 ohm·cm
Chemical Resistance:
- Resistant to acids, bases, and many organic solvents.
- Sensitive to some solvents like ketones.
Additional Features:
- Machinability: Polycarbonate is easily machined and fabricated.
- Weldability: Can be solvent bonded, ultrasonically welded, or joined using other methods.
- UV Resistance: PC has good resistance to UV radiation.
- Impact Resistance: Excellent impact resistance, making it suitable for applications requiring durability.
- Flame Retardancy: Flame retardant grades are available.
Applications:
- Transparent Glazing: Windows, skylights, and safety shields.
- Electronic Components: Compact discs, DVDs, and LED lenses.
- Consumer Goods: Eyewear lenses, water bottles, and household items.
- Automotive Parts: Headlamp lenses, interior components, and safety features.
- Medical Devices: Transparent medical equipment and devices.