Polycarbonate (PC)

Alternative and trade names
Lexan®, Calibre®, Apec®, Alcom®
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Description

Polycarbonate, an amorphous polymer, offers a unique combination of toughness with exceptional impact strength. It also exhibits high optical clarity, excellent creep, and high temperature resistance.

Properties

General

Density ρ

1.18 - 1.24 g/cm³ at 20 °C

Mechanical

Elastic modulus E

2.1 - 2.5 GPa at 20 °C

Elongation A

50 - 150 % at 20 °C

Impact strength, Charpy notched Ivnot

10 - 80 kJ/m² at 20 °C

Impact strength, Charpy unnotched Iunnot

no break

Max allowed stress σmax

50 - 80 MPa at 20 °C

at 4-7% strain

Thermal

Coefficient of thermal expansion α

6E-5 - 8E-5 1/K at 20 °C

Flammability

UL 94 V2

Max service temperature, long Tmaxlong

115 - 130 °C

Max service temperature, short Tmaxshort

115 - 150 °C

Melting point Tm

220 - 260 °C

Specific heat capacity cp

1170 - 1260 J/(kg·K) at 20 °C

Thermal conductivity λ

0.2 - 0.27 W/(m·K) at 20 °C

Electrical

Dielectric constant εr

2.7 - 3.1 [-] at 20 °C

Electrical resistivity ρel

1.00E+14 Ω·m at 20 °C

Optical

Transparency

yes

Technological properties

Application areas

Electrical housings, optical data storage (CD & DVD), ophthalmic lenses, fresh water containers

Processing methods

Injection molding, blow molding, extrusion

This material data has been provided by M-Base.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.