Polysulphone - Psul

Sep 5 2001

Polymer Type

Thermoplastic

Advantages

Good high temperature performance UL continuous rating of 150°C (300°F).  Transparent. Good high frequency electrical properties.  Good resistance to ionising radiation.  Resistant to hydrolysis.

Disadvantages

Susceptible to stress cracking in certain solvents.  Poor tracking resistance.  Poor weathering properties.

Typical Properties

Property

Value

Density (g/cm3)

1.24

Surface Hardness

RM69

Tensile Strength (MPa)

70

Flexural Modulus (GPa)

2.65

Notched Izod (kJ/m)

0.07

Linear Expansion  (/°C x 10-5)

5.6

Elongation at Break (%)

80

Strain at Yield (%)

5.5

Max. Operating Temp. (°C)

150

Water Absorption (%)

0.1

Oxygen Index (%)

30

Flammability UL94

V1

Volume Resistivity (log ohm.cm)

16

Dielectric Strength (MV/m)

16.7

Dissipation Factor 1kHz

0.001

Dielectric Constant  1kHz

3.1

HDT @ 0.45 MPa (°C)

179

HDT @ 1.80 MPa (°C)

174

Material. Drying  hrs @ (°C)

5 @120

Melting Temp. Range (°C)

310 - 390

Mould Shrinkage (%)

0.7

Mould Temp. Range (°C)

90 - 160

Applications

Medical components (sterilising trays, suction bottles, respirators).  Food processing (filter bowls, microwave cookware, parts for milking machines).  Electrical and electronics (bobbins, switch housings switch housings, capacitor film).  Engineering (valve bodies, under-bonnet components, housings).

 

Source : Abstracted from Plascams

For more information on Plascams please visit RAPRA Technology Ltd.

 

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