Properties 

Polysulfones
Injection molding, flame retarded, 
extrusion

Topics   Index

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Copyright 2002 by Roger D. Corneliussen
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Values are from Modern Plastics Encyclopedia 99.

To jump to a particular property, click on the name below.

Melt Flow
Melting Temperature
Glass Transition
Processing Molding Pressure
Processing Molding Temperature
Compression Ratio
Mold Shrinkage
Tensile Strength
Elongation
Tensile Yield Strength
Compressive Strength
Flexural Strength
Tensile Modulus
Flexural Modulus
Izod Impact Strength
Hardness
Deflection Temperature
Thermal Expansion
Thermal Conductivity
Specific Gravity
Dielectric Strength
Water Absorption

Note: The ASTM numbers are linked to 
their descriptions on the ASTM website.  
To go to the description, simply
click on the ASTM number

Melt Flow 
ASTM D1238
(gm/10 min)

3.5 to 9 gm /10 min

Melting Temperature  degrees C
Tm Crystalline
--- C

Glass Transition (C)
Tg (Amorphous)

187 to 190 C

Processing Temperature Range Degrees F
Extrusion

--- F for Compression Molding
625 to 750 F for Injection Molding
600 to 700 F for Extrusion

Molding Pressure Range ( PSI) (ksi)
5000 to 20000 psi
5 to 20 ksi
33 to 133 MPa

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Compression Ratio
2.5 to 3.5

Mold(Linear) Shrinkage (in/in)
ASTM D955
0.0058 to 0.007 in/in 

Tensile Strength at Break
ASTM D638
--- psi
--- MPa

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Elongation at break (%)
ASTM D638
50 to 100 %

Tensile Yield Strength (psi)
ASTM D638
10200 to 11600 psi
68 to 77 MPa

Compressive Strength (psi)
Rupture or Yield
ASTM D695
13900 to 40000 psi
93 to 267 MPa

To go to Compressive Strength Values,
click on
Compressive Strength

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Flexural Strength (psi)
Rupture or Yield
ASTM D790
15400 to 17500 psi
103 to 117 MPa

Tensile Modulus (psi)
ASTM D638
360000 390000 psi
2.4 to 2.6 GPa

To go to Modulus Values,
click on
Modulus

Compressive Modulus (psi)
ASTM D695
374000 psi
2.5 GPa

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Flexural Modulus (psi)
ASTM D790
At 73 F
390000 psi
2.6 GPa
At 200 F
370000 psi
2.5 GPa
At 250 F
350000 psi
2.3 GPa
At 300 F
310000 psi
2.1 GPa

Izod Impact (ft-lb/in of notch)
ASTM D256A

1.0 to 1.3 ft lb/in of notch

To go to Izod Values,
click on
Izod

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Hardness
Rockwell ASTM D785
 
M69
Shore D65 ASTM D2240/D2583
---

Coefficient of Linear Thermal Expansion
(10 exp-6 )in/in/C
 56 (10 x exp 6) in/in /C
0.000 056 in/in /C

Deflection Temperature under flexural load (F)
ASTM D648
264 psi ---
345 F
66 psi  ---
358 F

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Thermal Conductivity
(10 x exp 4)al cm/sec cm2 C
ASTM C177
6.2 (10 x exp 4) cal cm/sec cm2
0.00062 cal cm/sec cm2

Specific Gravity
ASTM D792
1.24 to 1.25

To go to Density /Specific Gravity Values,
click on
Density

Water Absorption
(1/8 in thick specimen) (%)
ASTM D570
24 hr --- 0.3 %
Saturation  --- 0.8 %

Dielectric Strength v/mil
(1/8 in thick Specimen; short time)
425 v/mil

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Topics   Index

**************************************
Copyright 2002 by Roger D. Corneliussen
No part of this transmission is to be
duplicated, in any manor, or forwarded by
electronic mail without the express written
permission of Roger D. Corneliussen
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