PPO
CROW logo
Polyphenylethers (Polyphenyleneoxide)
 

Thermo-Physical Properties

PROPERTYUNITVALUE / RANGE
Melting Point °Cn.a.
Density g mL-1 1.02 - 1.11
Coefficient of Thermal Expansioncm / (cm °C) x 10-5 5.2- 8.0
Heat Deflection Temperature, 0.5 MPa °C  
Heat Deflection Temperature, 1.8 MPa °C  
Thermal ConductivityW / mK 0.21 - 0.22
Rockwell Hardness,  A Scale (Shore D)n/a R115 - R120
    
 

Mechanical Properties at 23 °C

PROPERTY UNITVALUE / RANGE
Tensile Strength, Yield at 23 C MPa 67
Tensile Strength, Break at 23 C MPa 65
Elongation, Yield % 4
Elongation, Break % 8
Tensile Modulus at 23 CMPa 2400
Flexural Strength, Yield MPa 95
Flexural Modulus  MPa 2400
Compressive Strength, 1% - 2% MPa17 - 30
Charpy Impact Strength kJ/m2 70
Izod Unnotched J / m  
 

Electrical Properties

PROPERTY UNITVALUE / RANGE
Volume Resistivity
Ohm-cm x 1014  
 Dielectric Strength V/mm x 104 1.6 - 2.4
Dielectric Constant @ 1 MHz n/a 2.0 - 2.8
Dissipation Factor @ 1 MHz n/a, x 10-4 7.0
 

Other Properties

PROPERTY UNITVALUE / RANGE
Processing Temperature
°C230 - 300
Mold Shrinkage % 0.004 - 0.009
Continuous Service Temperature °C 95
Water Absorption, 24 hr. Immersion% 0.02 - 0.04
back to top