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Polysulfone ( PSu )

Material Information

Buy Polysulfone on-line

We stock and supply the following standard forms:
Film Granule Rod
Film Granule Rod

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Common Brand Names:
Udel®, Ultrason® S
 
General Description:  

General Description : An amorphous, transparent and pale amber high performance thermoplastic, similar to PES. It offers very good radiation resistance, good chemical and hydrolysis resistance and low ionic impurity levels. It has slightly lower temperature resistance than PES, but does offer lower moisture absorption levels than PES, although drying is still essential before thermoforming. It has poor fatigue characteristics and is prone to environmental stress cracking but has good long term thermal ageing resistance. Its chemical resistance is also very similar to PES.

Applications include use in food processing equipment such as milking machines, pumps, valves, filtration plates, heat exchangers and various medical components requiring repeated steam sterilisation.

   

Chemical Resistance

Acids - concentrated Fair
Acids - dilute Good
Alcohols Good
Alkalis Good
Aromatic hydrocarbons Fair
Greases and Oils Good
Halogens Good
Ketones Poor

Electrical Properties

Dielectric constant @1kHz 3.14
Dielectric constant @1MHz 3.10
Dielectric strength ( kV mm-1 ) 17
Dissipation factor @ 1kHz 0.0013
Dissipation factor @ 1MHz 0.0050
Volume resistivity ( Ohmcm ) 5x1016

Mechanical Properties

Elongation at break ( % ) 50-100
Hardness - Rockwell M91
Izod impact strength ( J m-1 ) 69
Tensile modulus ( GPa ) 2.48
Tensile strength ( MPa ) 70

Physical Properties

Density ( g cm-3 ) 1.24
Flammability HB
Limiting oxygen index ( % ) 30
Radiation resistance Good
Resistance to Ultra-violet Poor
Water absorption ( % ) 0.40
Water absorption - equilibrium ( % ) 0.85

Thermal Properties

Coefficient of thermal expansion ( x10-6 K-1 ) 56
Heat-deflection temperature - 1.8MPa ( C ) 174
Thermal conductivity @0.26C ( W m-1 K-1 )
Upper working temperature ( C ) 150-180

Buy Polysulfone on-line

We stock and supply the following standard forms:
Film Granule Rod
Film Granule Rod

Choose a form to search our on-line catalog  

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