Comparison
Glass-Filled PPO/PPE vs PEEK
A side-by-side comparison of Polyphenylene Oxide / Polyphenylene Ether, Glass Fiber Reinforced and Polyether Ether Ketone.
Physical
Density
1.15-1.25 g/cm³
1.32 g/cm³
Water Absorption (24h)
0.05-0.15 %
0.15 %
Transparency
Opaque
Opaque (amber)
Shrinkage
0.3-0.5 %
1.1 – 1.4 %
Mechanical
Young's Modulus
3.0-4.0 GPa
3.6 GPa
Tensile Strength
60-80 MPa
100 MPa
Elongation at Break
40-70 %
50 %
Impact Strength (Izod)
30-50 kJ/m
55 J/m
Flexural Strength
—
170 MPa
Thermal
Glass Transition Temperature
100-120 °C
143 °C
Melting Point
N/A (amorphous)
343 °C
Continuous Service Temperature
90-130 °C
260 °C
Heat Deflection Temperature
120-150 °C (1.8 MPa)
160 °C
Electrical
Dielectric Constant
2.5-2.8
3.2
Volume Resistivity
10^14-10^16 Ohm-cm
10¹⁶ Ω·cm
Dielectric Strength
18-24 kV/mm
—
Chemical resistance
Acids
Good
Excellent
Bases
Good
Excellent
Solvents
Fair
Excellent
UV Resistance
Fair
Fair
Hydrolysis (steam)
—
Excellent
Sustainability
Recyclability
Recyclable
Recyclable (specialty)
Recycling Code
7 (Other)
7
Carbon Footprint
Moderate
~30 kg CO₂e / kg