May 27 2003
Polycarbonate is produced as a colorless and crystal clear, amorphous engineering thermoplastic. It is known for its high impact resistance (which remains high down to -40 °C), with good dimensional stability and reasonably good temperature resistance.
Polycarbonate is a low creep material, is prone to environmental stress cracking, and has somewhat limited chemical resistance. Also, it has poor wear and fatigue properties.
Background
Conductive polycarbonate (PC) is polycarbonate film filled, typically with carbon, to give a measure of electrical conductivity. Its colour is normally black.
Applications
Applications of polycarbonate include CDs (the discs), medical apparatus (sterilizable), kitchenware (microwaveable), light fittings, casings and housings, lenses, safety shields, and glazing.
Key Properties
| Electrical Properties |
| Surface resistivity ( Ohm/sq ) |
100 - 500 |
| Volume resistivity ( Ohm.cm ) |
1 - 100 |
| Mechanical Properties |
| Elongation at break ( % ) |
5 - 9 |
| Tensile modulus ( GPa ) |
2.2-2.6 |
| Tensile strength ( MPa ) |
60 - 70 |
| Physical Properties |
| Density ( g.cm-3 ) |
1.28 - 1.35 |
| Water absorption - equilibrium ( % ) |
~0.9 |
About Goodfellow
Goodfellow supplies metals, ceramics and other materials to meet the research, development and specialist production requirements of science and industry worldwide.
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