Polycarbonate, commonly abbreviated as PC, also known as bulletproof plastic, is a non-crystalline thermoplastic engineering plastic.Polycarbonate exhibits excellent creep resistance among thermoplastic engineering plastics, even surpassing nylon and POM. The dimensional changes due to moisture absorption and cold flow deformation are minimal, which is a significant indicator of its excellent dimensional stability. Polycarbonate has poor resistance to cyclic stress. Some polycarbonate components used for wear-prone applications require special surface treatment.Used for manufacturing large lampshades, protective glass, ocular tubes for optical instruments, and also for transparent materials and electronic appliances on aircraft.
| Physical Properties | Rated Value | Unit system | Testing Method |
Density (23°C) | 1.13 | g/cm³ | ISO 1183 |
Melt Flow Rate (Melt Flow Rate) (330°C/2.16 kg) | 8.0 | g/10 min | ISO 1133 |
Melt Volume Rate (MVR) (330°C/2.16 kg) | 8.00 | cm³/10min | ISO 1133 |
Shrinkage rate 3 | ISO 294-4 | ||
Vertical flow direction: 2.00 mm | 0.90 | % | |
Flow Direction: 2.00 mm | 0.90 | % | |
Absorption rate | ISO 62 | ||
Saturated, 23°C | 0.30 | % | |
Balanced, 23°C, 50% RH | 0.12 | % | |
| Hardness | Rated Value | Unit system | Testing Method |
Ball Press Hardness | 130 | MPa | ISO 2039-1 |
| Mechanical Properties | Rated Value | Unit system | Testing Method |
Tensile Modulus (23°C) | 2450 | MPa | ISO 527-2/1 |
Tensile stress (Yield, 23°C) | 76.0 | MPa | ISO 527-2/50 |
Tensile strain (Yield, 23°C) | 6.9 | % | ISO 527-2/50 |
Nominal Tensile Fracture Strain (23°C) | > 50 | % | ISO 527-2/50 |
Bend Modulus 4 (23°C) | 2450 | MPa | ISO 178 |
Bend Stress 4 (23°C) | 110 | MPa | ISO 178 |
| Impact Resistance | Rated Value | Unit system | Testing Method |
Simply supported beam without notch impact strength | ISO 179/1eU | ||
-30°C | No breaks | ||
23°C | No breaks |
| Thermal performance | Rated Value | Unit system | Testing Method |
Hot Deformation Temperature | |||
0.45 MPa, annealed | 191 | °C | ISO 75-2/B |
1.8 MPa, as-annealed | 172 | °C | ISO 75-2/A |
Vicat Softening Temperature | 202 | °C | ISO 306/B120 |
Linear Coefficient of Thermal Expansion | ISO 11359-2 | ||
Flow: 23 to 55°C | 6.5E-5 | cm/cm/°C | |
Horizontal: 23 to 55°C | 6.5E-5 | cm/cm/°C | |
RTI Elec | 150 | °C | UL 746 |
RTI Imp | 130 | °C | UL 746 |
RTI | 150 | °C | UL 746 |
