Properties 

Polyphenylene Sulfide (PPS)

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)

--- gm /10 min

Melting Temperature  degrees C
Tm Crystalline
285 to 290 C

Glass Transition (C)
Tg (Amorphous)

88 C

Processing Temperature Range Degrees F
Extrusion

590 to 640 F; Injection Molding

Molding Pressure Range ( PSI) (ksi)
5000 to 15000 psi
5 to 15 ksi
33 to 100 MPa

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Compression Ratio
2 to 3

Mold(Linear) Shrinkage (in/in)
ASTM D955
0.006 to 0.014 in/in 

Tensile Strength at Break
ASTM D638
7000 to 12500 psi
47 to 83 MPa

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Elongation at break (%)
ASTM D638
1 to 6 %

Tensile Yield Strength (psi)
ASTM D638
--- psi
--- MPa

Compressive Strength (psi)
Rupture or Yield
ASTM D695
16000 psi
107 MPa

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click on
Compressive Strength

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Flexural Strength (psi)
Rupture or Yield
ASTM D790
14000 to 21000  psi
93 to 140 MPa

Tensile Modulus (psi)
ASTM D638
480000 psi
3.2 GPa

To go to Modulus Values,
click on
Modulus

Compressive Modulus (psi)
ASTM D695
--- psi
--- GPa

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Flexural Modulus (psi)
ASTM D790
At 73 F
550000 to 600000 psi
3.7 to 4.0 GPa
At 200 F
--- psi
--- GPa
At 250 F
--- psi
--- GPa
At 300 F
--- psi
--- GPa

Izod Impact (ft-lb/in of notch)
ASTM D256

< 0.5  ft lb/in of notch

To go to Izod Values,
click on
Izod

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Hardness
Rockwell ASTM D785
R123 to 125
--
Shore D65 ASTM D2240/D2583
---

Coefficient of Linear Thermal Expansion
(10 exp-6 )in/in/C
27 to 49 (10 x exp 6) in/in /C
0.000 027 to 0.000 049  in/in /C

Deflection Temperature under flexural load (F)
ASTM D648
264 psi ---
212 to 275 F
66 psi  ---
390 F

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Thermal Conductivity
(10 x exp 4)al cm/sec cm2 C
ASTM C177
2.0 to 6.9 (10 x exp 4) cal cm/sec cm2
0.00020 to 0.00069 cal cm/sec cm2

Specific Gravity
ASTM D792
1.35

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

Water Absorption
(1/8 in thick specimen) (%)
ASTM D570
24 hr --- 0.01 to 0.07 %
Saturation 
---  %

Dielectric Strength v/mil
(1/8 in thick Specimen; short time)
380 to 450 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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