Polyethersulphone
Polyethersulphone is an amorphous translucent engineering thermoplastic with very good thermal mechanical strength for demanding applications.
Key Features:
Translucent
Rigid and creep resistant
Very good thermal mechanical strength
Suitable for repeated superheated steam sterilization
Good dimensional accuracy
Good electrical insulation
Good weldability
Easily machined, care required with coolant, susceptible to stress cracking
Self extinguishing V-0
Gamma ray resistant
Applications:
Metering apparatus, sterilization tanks, catalyst support, coil former, insulators, sensor housings, surgical instruments, light sockets, flanges, switch parts, valve bodies, sight glasses.
Technical Information:
Information to be used as a guide only. It corresponds with our current knowledge and indicates possible applications. We cannot guarantee suitability for a specific application. Unless otherwise stated these values represent averages taken from injection moulded samples.
| Properties |
Unit |
Test Method DIN ASTM |
Result |
| Mechanical |
- |
- |
- |
| Density |
g/cm³ |
53479 |
1.37 |
| Tensile strength at yield |
MPa |
53455 |
82 |
| Tensile strength at break |
MPa |
53455 |
- |
| Elongation at Break |
% |
53455 |
30-80 |
| Modulus of elasticity in tension |
MPa |
53457 |
2400 |
| Modulus of elasticity in flexure |
MPa |
53457 |
|
| Ball indentation hardness |
MPa |
53456 |
150 |
| Impact strength (Charpy) |
KJ/m² |
53453 |
- |
| Creep rupture strength after 1000 hours with static load |
MPa |
- |
- |
| Time yield limit for 1% elongation after 1000 hours |
MPa |
- |
- |
| Coefficient of friction against hardened and ground steel p+0,05 N/mm2, v=0,6 m/s |
- |
- |
20 |
| Wear conditions as above |
µm/km |
- |
- |
| Thermal |
- |
- |
- |
| Crystalline melting point |
ºC |
53736 |
- |
| Glass transition temperature |
ºC |
53736 |
225 |
| Heat distortion temperature method A |
ºC |
ISO 75 |
204 |
| Heat distortion temperature method B |
ºC |
ISO 75 |
214 |
| Max. service temperature short term |
ºC |
- |
220 |
| Max. service temperature long term |
ºC |
- |
180 |
| Coefficient of thermal conductivity |
W/(m K) |
- |
0.18 |
| Specific heat |
J/(g K) |
- |
1.12 |
| Coefficient of thermal expansion |
10-5/K |
- |
5.6 |
| Electrical |
- |
- |
- |
| Dielectric constant at 10 (5) Hz |
- |
53483 |
3.5 |
| Dielectric loss factor at 10(5) Hz |
- |
53483 |
0.005 |
| Specific Volume Resistance |
Ωcm |
53482 |
10 (17) |
| Surface Resistance |
O |
53482 |
10 (14) |
| Dielectric strength 1mm |
kV/mm |
53481 |
40 |
| Tracking resistance |
- |
53480 |
- |
| Miscellaneous |
- |
- |
- |
| Moisture Absorption: Equilibrium in standard atmosphere (23ºC / 50% relative humidity) |
% |
53714 |
0.8 |
| Water absorption at saturation at 23ºC |
% |
53495 |
2.1 |
| Resistance to hot water, washing soda |
- |
- |
resistant |
| Flamability |
- |
UL 94 |
VO |
| Resistance to weathering |
- |
- |
not resistant |
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