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Polystyrene Disk
Available Configurations
Properties common to all products in this list
Starting at
$194.00
each
No Minimum order
Free technical support
*Free delivery worldwide
Material Properties
Physical Properties
| Element | Value |
|---|---|
| Abbe number | 30.8 |
| Flammability | HB |
| Radiation resistance | Good |
| Refractive index | 1.59-1.6 |
| Resistance to Ultra-violet | Poor |
| Limiting oxygen index( % ) | 19 |
| Water absorption - over 24 hours( % ) | 0.4 |
| Density( gcm⁻³ ) | 1.05 |
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Fair-Poor |
| Acids - dilute | Good-Fair |
| Alcohols | Good-Fair |
| Alkalis | Good-Fair |
| Aromatic hydrocarbons | Poor |
| Greases and Oils | Good-Poor |
| Halogenated Hydrocarbons | Poor |
| Halogens | Poor |
| Ketones | Poor |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant @1MHz | 2.4-3.1 |
| Dissipation factor @ 1kHz | 0.0002 |
| Dielectric strength( kV mm⁻¹ ) | 20 |
| Volume resistivity( Ohmcm ) | >10¹⁶ |
Mechanical Properties
| Element | Value |
|---|---|
| Hardness - Rockwell | M60-90 |
| Poisson's ratio | 0.35 |
| Elongation at break( % ) | 1.6 |
| Tensile modulus( GPa ) | 2.3-4.1 |
| Izod impact strength( J m⁻¹ ) | 19-24 |
| Tensile strength( MPa ) | 30-100 |
Thermal Properties
| Element | Value |
|---|---|
| Heat-deflection temperature - 0.45MPa( C ) | 90 |
| Heat-deflection temperature - 1.8MPa( C ) | 80 |
| Upper working temperature( C ) | 50-95 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 1200 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 0.1-0.13@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 30-210 |
Tolerances
Disc
| Thickness | ±20% |
|---|