Polyphenylsulphone - Supplier Data by Goodfellow

Polyphenylsulphone (PPSu) is an amorphous high performance thermoplastic, which offers better chemical resistance and impact resistance than polyetherimide and polysulphone.

When compared to other amorphous thermoplastics, PPSu provides superior hydrolysis resistance as measured by steam autoclaving cycles to failure.

PPSu has virtually infinite steam sterilizability and outlasts other materials by a factor of 40:1.

Polyphenylsulphone is a type of moldable plastic that is heat and chemical resistant.

This factor makes PPSu an excellent choice for medical devices as steam autoclaves are extensively used to sterilize medical devices.

PPSu is also resistant to common acids and bases such as commercial washing solutions over a wide temperature range.


Industrial applications of PPSu include aircraft cabin interior components, sterilization trays, surgical and dental instrument handles, and hot water fittings.

PPSu can be used for Aircraft Cabin Interiors. Image Credit: Ryan Fletcher/Shutterstock

PPSu can be used for Aircraft Cabin Interiors. Image Credit: Ryan Fletcher/Shutterstock

Key Properties

The key properties of Polyphenylsulphone are tabulated below.

Table 1. Key properties

Electrical Properties
Dissipation factor @ 1 MHz 0.005
Surface resistivity ( Ohm/sq ) >1013
Volume resistivity ( Ohm.cm ) >1014
Mechanical Properties
Elongation at break ( % ) 30
Hardness - Rockwell M80
Tensile modulus ( GPa ) 2.5
Tensile strength ( MPa ) 76
Physical Properties
Density ( g.cm-3 ) 1.29
Flammability V-0
Limiting oxygen index ( % ) 44
Radiation resistance - Gamma Good
Radiation resistance - X-ray Good
Water absorption ( % ) 1.2
Water absorption - equilibrium ( % ) 0.6
Water absorption - over 24 hours ( % ) 0.35
Thermal Properties
Coefficient of thermal expansion ( x10-6 K-1 ) 55
Heat-deflection temperature - 1.8 MPa ( °C ) 200
Thermal conductivity ( W.m-1.K-1 ) 0.35
Upper working temperature ( °C ) 180-210

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