Comparison
rPC Transparent vs PEEK
A side-by-side comparison of Recycled Polycarbonate Transparent and Polyether Ether Ketone.
Physical
Density
1.20-1.22 g/cm³
1.32 g/cm³
Water Absorption (24h)
0.10-0.15 %
0.15 %
Transparency
Excellent
Opaque (amber)
Shrinkage
0.6-0.8 %
1.1 – 1.4 %
Mechanical
Young's Modulus
2.0-2.4 GPa
3.6 GPa
Tensile Strength
50-65 MPa
100 MPa
Elongation at Break
60-100 %
50 %
Impact Strength (Izod)
60-80 J/m (unnotched)
55 J/m
Flexural Strength
—
170 MPa
Thermal
Glass Transition Temperature
145-155 °C
143 °C
Melting Point
N/A (amorphous)
343 °C
Continuous Service Temperature
100-120 °C
260 °C
Heat Deflection Temperature
120-130 °C (0.45 MPa)
160 °C
Electrical
Dielectric Constant
2.9-3.1
3.2
Volume Resistivity
10^15-10^17 Ohm·cm
10¹⁶ Ω·cm
Dielectric Strength
15-25 kV/mm
—
Chemical resistance
Acids
Good resistance to dilute acids
Excellent
Bases
Poor resistance
Excellent
Solvents
Attacked by acetone, xylene, and chlorinated hydrocarbons
Excellent
UV Resistance
Moderate (can yellow with prolonged exposure)
Fair
Hydrolysis (steam)
—
Excellent
Sustainability
Recyclability
Recyclable (check local facilities)
Recyclable (specialty)
Recycling Code
7 (Other)
7
Carbon Footprint
Lower than virgin PC
~30 kg CO₂e / kg